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(ignore_special_drivers, "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 (id >= HID_MAX_IDS)
  67                 return NULL;
  68         if (report_enum->report_id_hash[id])
  69                 return report_enum->report_id_hash[id];
  70
  71         report = kzalloc(sizeof(struct hid_report), GFP_KERNEL);
  72         if (!report)
  73                 return NULL;
  74
  75         if (id != 0)
  76                 report_enum->numbered = 1;
  77
  78         report->id = id;
  79         report->type = type;
  80         report->size = 0;
  81         report->device = device;
  82         report_enum->report_id_hash[id] = report;
  83
  84         list_add_tail(&report->list, &report_enum->report_list);
  85
  86         return report;
  87 }
  88 EXPORT_SYMBOL_GPL(hid_register_report);
  89
  90 /*
  91  * Register a new field for this report.
  92  */
  93
  94 static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values)
  95 {
  96         struct hid_field *field;
  97
  98         if (report->maxfield == HID_MAX_FIELDS) {
  99                 hid_err(report->device, "too many fields in report\n");
 100                 return NULL;
 101         }
 102
 103         field = kzalloc((sizeof(struct hid_field) +
 104                          usages * sizeof(struct hid_usage) +
 105                          values * sizeof(unsigned)), GFP_KERNEL);
 106         if (!field)
 107                 return NULL;
 108
 109         field->index = report->maxfield++;
 110         report->field[field->index] = field;
 111         field->usage = (struct hid_usage *)(field + 1);
 112         field->value = (s32 *)(field->usage + usages);
 113         field->report = report;
 114
 115         return field;
 116 }
 117
 118 /*
 119  * Open a collection. The type/usage is pushed on the stack.
 120  */
 121
 122 static int open_collection(struct hid_parser *parser, unsigned type)
 123 {
 124         struct hid_collection *collection;
 125         unsigned usage;
 126
 127         usage = parser->local.usage[0];
 128
 129         if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) {
 130                 hid_err(parser->device, "collection stack overflow\n");
 131                 return -EINVAL;
 132         }
 133
 134         if (parser->device->maxcollection == parser->device->collection_size) {
 135                 collection = kmalloc(sizeof(struct hid_collection) *
 136                                 parser->device->collection_size * 2, GFP_KERNEL);
 137                 if (collection == NULL) {
 138                         hid_err(parser->device, "failed to reallocate collection array\n");
 139                         return -ENOMEM;
 140                 }
 141                 memcpy(collection, parser->device->collection,
 142                         sizeof(struct hid_collection) *
 143                         parser->device->collection_size);
 144                 memset(collection + parser->device->collection_size, 0,
 145                         sizeof(struct hid_collection) *
 146                         parser->device->collection_size);
 147                 kfree(parser->device->collection);
 148                 parser->device->collection = collection;
 149                 parser->device->collection_size *= 2;
 150         }
 151
 152         parser->collection_stack[parser->collection_stack_ptr++] =
 153                 parser->device->maxcollection;
 154
 155         collection = parser->device->collection +
 156                 parser->device->maxcollection++;
 157         collection->type = type;
 158         collection->usage = usage;
 159         collection->level = parser->collection_stack_ptr - 1;
 160
 161         if (type == HID_COLLECTION_APPLICATION)
 162                 parser->device->maxapplication++;
 163
 164         return 0;
 165 }
 166
 167 /*
 168  * Close a collection.
 169  */
 170
 171 static int close_collection(struct hid_parser *parser)
 172 {
 173         if (!parser->collection_stack_ptr) {
 174                 hid_err(parser->device, "collection stack underflow\n");
 175                 return -EINVAL;
 176         }
 177         parser->collection_stack_ptr--;
 178         return 0;
 179 }
 180
 181 /*
 182  * Climb up the stack, search for the specified collection type
 183  * and return the usage.
 184  */
 185
 186 static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type)
 187 {
 188         struct hid_collection *collection = parser->device->collection;
 189         int n;
 190
 191         for (n = parser->collection_stack_ptr - 1; n >= 0; n--) {
 192                 unsigned index = parser->collection_stack[n];
 193                 if (collection[index].type == type)
 194                         return collection[index].usage;
 195         }
 196         return 0; /* we know nothing about this usage type */
 197 }
 198
 199 /*
 200  * Add a usage to the temporary parser table.
 201  */
 202
 203 static int hid_add_usage(struct hid_parser *parser, unsigned usage)
 204 {
 205         if (parser->local.usage_index >= HID_MAX_USAGES) {
 206                 hid_err(parser->device, "usage index exceeded\n");
 207                 return -1;
 208         }
 209         parser->local.usage[parser->local.usage_index] = usage;
 210         parser->local.collection_index[parser->local.usage_index] =
 211                 parser->collection_stack_ptr ?
 212                 parser->collection_stack[parser->collection_stack_ptr - 1] : 0;
 213         parser->local.usage_index++;
 214         return 0;
 215 }
 216
 217 /*
 218  * Register a new field for this report.
 219  */
 220
 221 static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags)
 222 {
 223         struct hid_report *report;
 224         struct hid_field *field;
 225         unsigned usages;
 226         unsigned offset;
 227         unsigned i;
 228
 229         report = hid_register_report(parser->device, report_type, parser->global.report_id);
 230         if (!report) {
 231                 hid_err(parser->device, "hid_register_report failed\n");
 232                 return -1;
 233         }
 234
 235         /* Handle both signed and unsigned cases properly */
 236         if ((parser->global.logical_minimum < 0 &&
 237                 parser->global.logical_maximum <
 238                 parser->global.logical_minimum) ||
 239                 (parser->global.logical_minimum >= 0 &&
 240                 (__u32)parser->global.logical_maximum <
 241                 (__u32)parser->global.logical_minimum)) {
 242                 dbg_hid("logical range invalid 0x%x 0x%x\n",
 243                         parser->global.logical_minimum,
 244                         parser->global.logical_maximum);
 245                 return -1;
 246         }
 247
 248         offset = report->size;
 249         report->size += parser->global.report_size * parser->global.report_count;
 250
 251         if (!parser->local.usage_index) /* Ignore padding fields */
 252                 return 0;
 253
 254         usages = max_t(unsigned, parser->local.usage_index,
 255                                  parser->global.report_count);
 256
 257         field = hid_register_field(report, usages, parser->global.report_count);
 258         if (!field)
 259                 return 0;
 260
 261         field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
 262         field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
 263         field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
 264
 265         for (i = 0; i < usages; i++) {
 266                 unsigned j = i;
 267                 /* Duplicate the last usage we parsed if we have excess values */
 268                 if (i >= parser->local.usage_index)
 269                         j = parser->local.usage_index - 1;
 270                 field->usage[i].hid = parser->local.usage[j];
 271                 field->usage[i].collection_index =
 272                         parser->local.collection_index[j];
 273                 field->usage[i].usage_index = i;
 274         }
 275
 276         field->maxusage = usages;
 277         field->flags = flags;
 278         field->report_offset = offset;
 279         field->report_type = report_type;
 280         field->report_size = parser->global.report_size;
 281         field->report_count = parser->global.report_count;
 282         field->logical_minimum = parser->global.logical_minimum;
 283         field->logical_maximum = parser->global.logical_maximum;
 284         field->physical_minimum = parser->global.physical_minimum;
 285         field->physical_maximum = parser->global.physical_maximum;
 286         field->unit_exponent = parser->global.unit_exponent;
 287         field->unit = parser->global.unit;
 288
 289         return 0;
 290 }
 291
 292 /*
 293  * Read data value from item.
 294  */
 295
 296 static u32 item_udata(struct hid_item *item)
 297 {
 298         switch (item->size) {
 299         case 1: return item->data.u8;
 300         case 2: return item->data.u16;
 301         case 4: return item->data.u32;
 302         }
 303         return 0;
 304 }
 305
 306 static s32 item_sdata(struct hid_item *item)
 307 {
 308         switch (item->size) {
 309         case 1: return item->data.s8;
 310         case 2: return item->data.s16;
 311         case 4: return item->data.s32;
 312         }
 313         return 0;
 314 }
 315
 316 /*
 317  * Process a global item.
 318  */
 319
 320 static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
 321 {
 322         __s32 raw_value;
 323         switch (item->tag) {
 324         case HID_GLOBAL_ITEM_TAG_PUSH:
 325
 326                 if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
 327                         hid_err(parser->device, "global environment stack overflow\n");
 328                         return -1;
 329                 }
 330
 331                 memcpy(parser->global_stack + parser->global_stack_ptr++,
 332                         &parser->global, sizeof(struct hid_global));
 333                 return 0;
 334
 335         case HID_GLOBAL_ITEM_TAG_POP:
 336
 337                 if (!parser->global_stack_ptr) {
 338                         hid_err(parser->device, "global environment stack underflow\n");
 339                         return -1;
 340                 }
 341
 342                 memcpy(&parser->global, parser->global_stack +
 343                         --parser->global_stack_ptr, sizeof(struct hid_global));
 344                 return 0;
 345
 346         case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
 347                 parser->global.usage_page = item_udata(item);
 348                 return 0;
 349
 350         case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
 351                 parser->global.logical_minimum = item_sdata(item);
 352                 return 0;
 353
 354         case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
 355                 if (parser->global.logical_minimum < 0)
 356                         parser->global.logical_maximum = item_sdata(item);
 357                 else
 358                         parser->global.logical_maximum = item_udata(item);
 359                 return 0;
 360
 361         case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
 362                 parser->global.physical_minimum = item_sdata(item);
 363                 return 0;
 364
 365         case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
 366                 if (parser->global.physical_minimum < 0)
 367                         parser->global.physical_maximum = item_sdata(item);
 368                 else
 369                         parser->global.physical_maximum = item_udata(item);
 370                 return 0;
 371
 372         case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
 373                 /* Many devices provide unit exponent as a two's complement
 374                  * nibble due to the common misunderstanding of HID
 375                  * specification 1.11, 6.2.2.7 Global Items. Attempt to handle
 376                  * both this and the standard encoding. */
 377                 raw_value = item_sdata(item);
 378                 if (!(raw_value & 0xfffffff0))
 379                         parser->global.unit_exponent = hid_snto32(raw_value, 4);
 380                 else
 381                         parser->global.unit_exponent = raw_value;
 382                 return 0;
 383
 384         case HID_GLOBAL_ITEM_TAG_UNIT:
 385                 parser->global.unit = item_udata(item);
 386                 return 0;
 387
 388         case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
 389                 parser->global.report_size = item_udata(item);
 390                 if (parser->global.report_size > 128) {
 391                         hid_err(parser->device, "invalid report_size %d\n",
 392                                         parser->global.report_size);
 393                         return -1;
 394                 }
 395                 return 0;
 396
 397         case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
 398                 parser->global.report_count = item_udata(item);
 399                 if (parser->global.report_count > HID_MAX_USAGES) {
 400                         hid_err(parser->device, "invalid report_count %d\n",
 401                                         parser->global.report_count);
 402                         return -1;
 403                 }
 404                 return 0;
 405
 406         case HID_GLOBAL_ITEM_TAG_REPORT_ID:
 407                 parser->global.report_id = item_udata(item);
 408                 if (parser->global.report_id == 0 ||
 409                     parser->global.report_id >= HID_MAX_IDS) {
 410                         hid_err(parser->device, "report_id %u is invalid\n",
 411                                 parser->global.report_id);
 412                         return -1;
 413                 }
 414                 return 0;
 415
 416         default:
 417                 hid_err(parser->device, "unknown global tag 0x%x\n", item->tag);
 418                 return -1;
 419         }
 420 }
 421
 422 /*
 423  * Process a local item.
 424  */
 425
 426 static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
 427 {
 428         __u32 data;
 429         unsigned n;
 430         __u32 count;
 431
 432         data = item_udata(item);
 433
 434         switch (item->tag) {
 435         case HID_LOCAL_ITEM_TAG_DELIMITER:
 436
 437                 if (data) {
 438                         /*
 439                          * We treat items before the first delimiter
 440                          * as global to all usage sets (branch 0).
 441                          * In the moment we process only these global
 442                          * items and the first delimiter set.
 443                          */
 444                         if (parser->local.delimiter_depth != 0) {
 445                                 hid_err(parser->device, "nested delimiters\n");
 446                                 return -1;
 447                         }
 448                         parser->local.delimiter_depth++;
 449                         parser->local.delimiter_branch++;
 450                 } else {
 451                         if (parser->local.delimiter_depth < 1) {
 452                                 hid_err(parser->device, "bogus close delimiter\n");
 453                                 return -1;
 454                         }
 455                         parser->local.delimiter_depth--;
 456                 }
 457                 return 0;
 458
 459         case HID_LOCAL_ITEM_TAG_USAGE:
 460
 461                 if (parser->local.delimiter_branch > 1) {
 462                         dbg_hid("alternative usage ignored\n");
 463                         return 0;
 464                 }
 465
 466                 if (item->size <= 2)
 467                         data = (parser->global.usage_page << 16) + data;
 468
 469                 return hid_add_usage(parser, data);
 470
 471         case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
 472
 473                 if (parser->local.delimiter_branch > 1) {
 474                         dbg_hid("alternative usage ignored\n");
 475                         return 0;
 476                 }
 477
 478                 if (item->size <= 2)
 479                         data = (parser->global.usage_page << 16) + data;
 480
 481                 parser->local.usage_minimum = data;
 482                 return 0;
 483
 484         case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
 485
 486                 if (parser->local.delimiter_branch > 1) {
 487                         dbg_hid("alternative usage ignored\n");
 488                         return 0;
 489                 }
 490
 491                 if (item->size <= 2)
 492                         data = (parser->global.usage_page << 16) + data;
 493
 494                 count = data - parser->local.usage_minimum;
 495                 if (count + parser->local.usage_index >= HID_MAX_USAGES) {
 496                         /*
 497                          * We do not warn if the name is not set, we are
 498                          * actually pre-scanning the device.
 499                          */
 500                         if (dev_name(&parser->device->dev))
 501                                 hid_warn(parser->device,
 502                                          "ignoring exceeding usage max\n");
 503                         data = HID_MAX_USAGES - parser->local.usage_index +
 504                                 parser->local.usage_minimum - 1;
 505                         if (data <= 0) {
 506                                 hid_err(parser->device,
 507                                         "no more usage index available\n");
 508                                 return -1;
 509                         }
 510                 }
 511
 512                 for (n = parser->local.usage_minimum; n <= data; n++)
 513                         if (hid_add_usage(parser, n)) {
 514                                 dbg_hid("hid_add_usage failed\n");
 515                                 return -1;
 516                         }
 517                 return 0;
 518
 519         default:
 520
 521                 dbg_hid("unknown local item tag 0x%x\n", item->tag);
 522                 return 0;
 523         }
 524         return 0;
 525 }
 526
 527 /*
 528  * Process a main item.
 529  */
 530
 531 static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
 532 {
 533         __u32 data;
 534         int ret;
 535
 536         data = item_udata(item);
 537
 538         switch (item->tag) {
 539         case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
 540                 ret = open_collection(parser, data & 0xff);
 541                 break;
 542         case HID_MAIN_ITEM_TAG_END_COLLECTION:
 543                 ret = close_collection(parser);
 544                 break;
 545         case HID_MAIN_ITEM_TAG_INPUT:
 546                 ret = hid_add_field(parser, HID_INPUT_REPORT, data);
 547                 break;
 548         case HID_MAIN_ITEM_TAG_OUTPUT:
 549                 ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
 550                 break;
 551         case HID_MAIN_ITEM_TAG_FEATURE:
 552                 ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
 553                 break;
 554         default:
 555                 hid_err(parser->device, "unknown main item tag 0x%x\n", item->tag);
 556                 ret = 0;
 557         }
 558
 559         memset(&parser->local, 0, sizeof(parser->local));       /* Reset the local parser environment */
 560
 561         return ret;
 562 }
 563
 564 /*
 565  * Process a reserved item.
 566  */
 567
 568 static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
 569 {
 570         dbg_hid("reserved item type, tag 0x%x\n", item->tag);
 571         return 0;
 572 }
 573
 574 /*
 575  * Free a report and all registered fields. The field->usage and
 576  * field->value table's are allocated behind the field, so we need
 577  * only to free(field) itself.
 578  */
 579
 580 static void hid_free_report(struct hid_report *report)
 581 {
 582         unsigned n;
 583
 584         for (n = 0; n < report->maxfield; n++)
 585                 kfree(report->field[n]);
 586         kfree(report);
 587 }
 588
 589 /*
 590  * Close report. This function returns the device
 591  * state to the point prior to hid_open_report().
 592  */
 593 static void hid_close_report(struct hid_device *device)
 594 {
 595         unsigned i, j;
 596
 597         for (i = 0; i < HID_REPORT_TYPES; i++) {
 598                 struct hid_report_enum *report_enum = device->report_enum + i;
 599
 600                 for (j = 0; j < HID_MAX_IDS; j++) {
 601                         struct hid_report *report = report_enum->report_id_hash[j];
 602                         if (report)
 603                                 hid_free_report(report);
 604                 }
 605                 memset(report_enum, 0, sizeof(*report_enum));
 606                 INIT_LIST_HEAD(&report_enum->report_list);
 607         }
 608
 609         kfree(device->rdesc);
 610         device->rdesc = NULL;
 611         device->rsize = 0;
 612
 613         kfree(device->collection);
 614         device->collection = NULL;
 615         device->collection_size = 0;
 616         device->maxcollection = 0;
 617         device->maxapplication = 0;
 618
 619         device->status &= ~HID_STAT_PARSED;
 620 }
 621
 622 /*
 623  * Free a device structure, all reports, and all fields.
 624  */
 625
 626 static void hid_device_release(struct device *dev)
 627 {
 628         struct hid_device *hid = to_hid_device(dev);
 629
 630         hid_close_report(hid);
 631         kfree(hid->dev_rdesc);
 632         kfree(hid);
 633 }
 634
 635 /*
 636  * Fetch a report description item from the data stream. We support long
 637  * items, though they are not used yet.
 638  */
 639
 640 static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
 641 {
 642         u8 b;
 643
 644         if ((end - start) <= 0)
 645                 return NULL;
 646
 647         b = *start++;
 648
 649         item->type = (b >> 2) & 3;
 650         item->tag  = (b >> 4) & 15;
 651
 652         if (item->tag == HID_ITEM_TAG_LONG) {
 653
 654                 item->format = HID_ITEM_FORMAT_LONG;
 655
 656                 if ((end - start) < 2)
 657                         return NULL;
 658
 659                 item->size = *start++;
 660                 item->tag  = *start++;
 661
 662                 if ((end - start) < item->size)
 663                         return NULL;
 664
 665                 item->data.longdata = start;
 666                 start += item->size;
 667                 return start;
 668         }
 669
 670         item->format = HID_ITEM_FORMAT_SHORT;
 671         item->size = b & 3;
 672
 673         switch (item->size) {
 674         case 0:
 675                 return start;
 676
 677         case 1:
 678                 if ((end - start) < 1)
 679                         return NULL;
 680                 item->data.u8 = *start++;
 681                 return start;
 682
 683         case 2:
 684                 if ((end - start) < 2)
 685                         return NULL;
 686                 item->data.u16 = get_unaligned_le16(start);
 687                 start = (__u8 *)((__le16 *)start + 1);
 688                 return start;
 689
 690         case 3:
 691                 item->size++;
 692                 if ((end - start) < 4)
 693                         return NULL;
 694                 item->data.u32 = get_unaligned_le32(start);
 695                 start = (__u8 *)((__le32 *)start + 1);
 696                 return start;
 697         }
 698
 699         return NULL;
 700 }
 701
 702 static void hid_scan_input_usage(struct hid_parser *parser, u32 usage)
 703 {
 704         struct hid_device *hid = parser->device;
 705
 706         if (usage == HID_DG_CONTACTID)
 707                 hid->group = HID_GROUP_MULTITOUCH;
 708 }
 709
 710 static void hid_scan_feature_usage(struct hid_parser *parser, u32 usage)
 711 {
 712         if (usage == 0xff0000c5 && parser->global.report_count == 256 &&
 713             parser->global.report_size == 8)
 714                 parser->scan_flags |= HID_SCAN_FLAG_MT_WIN_8;
 715 }
 716
 717 static void hid_scan_collection(struct hid_parser *parser, unsigned type)
 718 {
 719         struct hid_device *hid = parser->device;
 720         int i;
 721
 722         if (((parser->global.usage_page << 16) == HID_UP_SENSOR) &&
 723             type == HID_COLLECTION_PHYSICAL)
 724                 hid->group = HID_GROUP_SENSOR_HUB;
 725
 726         if (hid->vendor == USB_VENDOR_ID_MICROSOFT &&
 727             (hid->product == USB_DEVICE_ID_MS_TYPE_COVER_PRO_3 ||
 728              hid->product == USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_2 ||
 729              hid->product == USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_JP ||
 730              hid->product == USB_DEVICE_ID_MS_TYPE_COVER_PRO_4 ||
 731              hid->product == USB_DEVICE_ID_MS_TYPE_COVER_PRO_4_2 ||
 732              hid->product == USB_DEVICE_ID_MS_TYPE_COVER_PRO_4_JP ||
 733              hid->product == USB_DEVICE_ID_MS_POWER_COVER) &&
 734             hid->group == HID_GROUP_MULTITOUCH)
 735                 hid->group = HID_GROUP_GENERIC;
 736
 737         if ((parser->global.usage_page << 16) == HID_UP_GENDESK)
 738                 for (i = 0; i < parser->local.usage_index; i++)
 739                         if (parser->local.usage[i] == HID_GD_POINTER)
 740                                 parser->scan_flags |= HID_SCAN_FLAG_GD_POINTER;
 741
 742         if ((parser->global.usage_page << 16) >= HID_UP_MSVENDOR)
 743                 parser->scan_flags |= HID_SCAN_FLAG_VENDOR_SPECIFIC;
 744 }
 745
 746 static int hid_scan_main(struct hid_parser *parser, struct hid_item *item)
 747 {
 748         __u32 data;
 749         int i;
 750
 751         data = item_udata(item);
 752
 753         switch (item->tag) {
 754         case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
 755                 hid_scan_collection(parser, data & 0xff);
 756                 break;
 757         case HID_MAIN_ITEM_TAG_END_COLLECTION:
 758                 break;
 759         case HID_MAIN_ITEM_TAG_INPUT:
 760                 /* ignore constant inputs, they will be ignored by hid-input */
 761                 if (data & HID_MAIN_ITEM_CONSTANT)
 762                         break;
 763                 for (i = 0; i < parser->local.usage_index; i++)
 764                         hid_scan_input_usage(parser, parser->local.usage[i]);
 765                 break;
 766         case HID_MAIN_ITEM_TAG_OUTPUT:
 767                 break;
 768         case HID_MAIN_ITEM_TAG_FEATURE:
 769                 for (i = 0; i < parser->local.usage_index; i++)
 770                         hid_scan_feature_usage(parser, parser->local.usage[i]);
 771                 break;
 772         }
 773
 774         /* Reset the local parser environment */
 775         memset(&parser->local, 0, sizeof(parser->local));
 776
 777         return 0;
 778 }
 779
 780 /*
 781  * Scan a report descriptor before the device is added to the bus.
 782  * Sets device groups and other properties that determine what driver
 783  * to load.
 784  */
 785 static int hid_scan_report(struct hid_device *hid)
 786 {
 787         struct hid_parser *parser;
 788         struct hid_item item;
 789         __u8 *start = hid->dev_rdesc;
 790         __u8 *end = start + hid->dev_rsize;
 791         static int (*dispatch_type[])(struct hid_parser *parser,
 792                                       struct hid_item *item) = {
 793                 hid_scan_main,
 794                 hid_parser_global,
 795                 hid_parser_local,
 796                 hid_parser_reserved
 797         };
 798
 799         parser = vzalloc(sizeof(struct hid_parser));
 800         if (!parser)
 801                 return -ENOMEM;
 802
 803         parser->device = hid;
 804         hid->group = HID_GROUP_GENERIC;
 805
 806         /*
 807          * The parsing is simpler than the one in hid_open_report() as we should
 808          * be robust against hid errors. Those errors will be raised by
 809          * hid_open_report() anyway.
 810          */
 811         while ((start = fetch_item(start, end, &item)) != NULL)
 812                 dispatch_type[item.type](parser, &item);
 813
 814         /*
 815          * Handle special flags set during scanning.
 816          */
 817         if ((parser->scan_flags & HID_SCAN_FLAG_MT_WIN_8) &&
 818             (hid->group == HID_GROUP_MULTITOUCH))
 819                 hid->group = HID_GROUP_MULTITOUCH_WIN_8;
 820
 821         /*
 822          * Vendor specific handlings
 823          */
 824         switch (hid->vendor) {
 825         case USB_VENDOR_ID_WACOM:
 826                 hid->group = HID_GROUP_WACOM;
 827                 break;
 828         case USB_VENDOR_ID_SYNAPTICS:
 829                 if (hid->group == HID_GROUP_GENERIC)
 830                         if ((parser->scan_flags & HID_SCAN_FLAG_VENDOR_SPECIFIC)
 831                             && (parser->scan_flags & HID_SCAN_FLAG_GD_POINTER))
 832                                 /*
 833                                  * hid-rmi should take care of them,
 834                                  * not hid-generic
 835                                  */
 836                                 hid->group = HID_GROUP_RMI;
 837                 break;
 838         }
 839
 840         vfree(parser);
 841         return 0;
 842 }
 843
 844 /**
 845  * hid_parse_report - parse device report
 846  *
 847  * @device: hid device
 848  * @start: report start
 849  * @size: report size
 850  *
 851  * Allocate the device report as read by the bus driver. This function should
 852  * only be called from parse() in ll drivers.
 853  */
 854 int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size)
 855 {
 856         hid->dev_rdesc = kmemdup(start, size, GFP_KERNEL);
 857         if (!hid->dev_rdesc)
 858                 return -ENOMEM;
 859         hid->dev_rsize = size;
 860         return 0;
 861 }
 862 EXPORT_SYMBOL_GPL(hid_parse_report);
 863
 864 static const char * const hid_report_names[] = {
 865         "HID_INPUT_REPORT",
 866         "HID_OUTPUT_REPORT",
 867         "HID_FEATURE_REPORT",
 868 };
 869 /**
 870  * hid_validate_values - validate existing device report's value indexes
 871  *
 872  * @device: hid device
 873  * @type: which report type to examine
 874  * @id: which report ID to examine (0 for first)
 875  * @field_index: which report field to examine
 876  * @report_counts: expected number of values
 877  *
 878  * Validate the number of values in a given field of a given report, after
 879  * parsing.
 880  */
 881 struct hid_report *hid_validate_values(struct hid_device *hid,
 882                                        unsigned int type, unsigned int id,
 883                                        unsigned int field_index,
 884                                        unsigned int report_counts)
 885 {
 886         struct hid_report *report;
 887
 888         if (type > HID_FEATURE_REPORT) {
 889                 hid_err(hid, "invalid HID report type %u\n", type);
 890                 return NULL;
 891         }
 892
 893         if (id >= HID_MAX_IDS) {
 894                 hid_err(hid, "invalid HID report id %u\n", id);
 895                 return NULL;
 896         }
 897
 898         /*
 899          * Explicitly not using hid_get_report() here since it depends on
 900          * ->numbered being checked, which may not always be the case when
 901          * drivers go to access report values.
 902          */
 903         if (id == 0) {
 904                 /*
 905                  * Validating on id 0 means we should examine the first
 906                  * report in the list.
 907                  */
 908                 report = list_entry(
 909                                 hid->report_enum[type].report_list.next,
 910                                 struct hid_report, list);
 911         } else {
 912                 report = hid->report_enum[type].report_id_hash[id];
 913         }
 914         if (!report) {
 915                 hid_err(hid, "missing %s %u\n", hid_report_names[type], id);
 916                 return NULL;
 917         }
 918         if (report->maxfield <= field_index) {
 919                 hid_err(hid, "not enough fields in %s %u\n",
 920                         hid_report_names[type], id);
 921                 return NULL;
 922         }
 923         if (report->field[field_index]->report_count < report_counts) {
 924                 hid_err(hid, "not enough values in %s %u field %u\n",
 925                         hid_report_names[type], id, field_index);
 926                 return NULL;
 927         }
 928         return report;
 929 }
 930 EXPORT_SYMBOL_GPL(hid_validate_values);
 931
 932 /**
 933  * hid_open_report - open a driver-specific device report
 934  *
 935  * @device: hid device
 936  *
 937  * Parse a report description into a hid_device structure. Reports are
 938  * enumerated, fields are attached to these reports.
 939  * 0 returned on success, otherwise nonzero error value.
 940  *
 941  * This function (or the equivalent hid_parse() macro) should only be
 942  * called from probe() in drivers, before starting the device.
 943  */
 944 int hid_open_report(struct hid_device *device)
 945 {
 946         struct hid_parser *parser;
 947         struct hid_item item;
 948         unsigned int size;
 949         __u8 *start;
 950         __u8 *buf;
 951         __u8 *end;
 952         int ret;
 953         static int (*dispatch_type[])(struct hid_parser *parser,
 954                                       struct hid_item *item) = {
 955                 hid_parser_main,
 956                 hid_parser_global,
 957                 hid_parser_local,
 958                 hid_parser_reserved
 959         };
 960
 961         if (WARN_ON(device->status & HID_STAT_PARSED))
 962                 return -EBUSY;
 963
 964         start = device->dev_rdesc;
 965         if (WARN_ON(!start))
 966                 return -ENODEV;
 967         size = device->dev_rsize;
 968
 969         buf = kmemdup(start, size, GFP_KERNEL);
 970         if (buf == NULL)
 971                 return -ENOMEM;
 972
 973         if (device->driver->report_fixup)
 974                 start = device->driver->report_fixup(device, buf, &size);
 975         else
 976                 start = buf;
 977
 978         start = kmemdup(start, size, GFP_KERNEL);
 979         kfree(buf);
 980         if (start == NULL)
 981                 return -ENOMEM;
 982
 983         device->rdesc = start;
 984         device->rsize = size;
 985
 986         parser = vzalloc(sizeof(struct hid_parser));
 987         if (!parser) {
 988                 ret = -ENOMEM;
 989                 goto err;
 990         }
 991
 992         parser->device = device;
 993
 994         end = start + size;
 995
 996         device->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS,
 997                                      sizeof(struct hid_collection), GFP_KERNEL);
 998         if (!device->collection) {
 999                 ret = -ENOMEM;
1000                 goto err;
1001         }
1002         device->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
1003
1004         ret = -EINVAL;
1005         while ((start = fetch_item(start, end, &item)) != NULL) {
1006
1007                 if (item.format != HID_ITEM_FORMAT_SHORT) {
1008                         hid_err(device, "unexpected long global item\n");
1009                         goto err;
1010                 }
1011
1012                 if (dispatch_type[item.type](parser, &item)) {
1013                         hid_err(device, "item %u %u %u %u parsing failed\n",
1014                                 item.format, (unsigned)item.size,
1015                                 (unsigned)item.type, (unsigned)item.tag);
1016                         goto err;
1017                 }
1018
1019                 if (start == end) {
1020                         if (parser->collection_stack_ptr) {
1021                                 hid_err(device, "unbalanced collection at end of report description\n");
1022                                 goto err;
1023                         }
1024                         if (parser->local.delimiter_depth) {
1025                                 hid_err(device, "unbalanced delimiter at end of report description\n");
1026                                 goto err;
1027                         }
1028                         vfree(parser);
1029                         device->status |= HID_STAT_PARSED;
1030                         return 0;
1031                 }
1032         }
1033
1034         hid_err(device, "item fetching failed at offset %d\n", (int)(end - start));
1035 err:
1036         vfree(parser);
1037         hid_close_report(device);
1038         return ret;
1039 }
1040 EXPORT_SYMBOL_GPL(hid_open_report);
1041
1042 /*
1043  * Convert a signed n-bit integer to signed 32-bit integer. Common
1044  * cases are done through the compiler, the screwed things has to be
1045  * done by hand.
1046  */
1047
1048 static s32 snto32(__u32 value, unsigned n)
1049 {
1050         switch (n) {
1051         case 8:  return ((__s8)value);
1052         case 16: return ((__s16)value);
1053         case 32: return ((__s32)value);
1054         }
1055         return value & (1 << (n - 1)) ? value | (-1 << n) : value;
1056 }
1057
1058 s32 hid_snto32(__u32 value, unsigned n)
1059 {
1060         return snto32(value, n);
1061 }
1062 EXPORT_SYMBOL_GPL(hid_snto32);
1063
1064 /*
1065  * Convert a signed 32-bit integer to a signed n-bit integer.
1066  */
1067
1068 static u32 s32ton(__s32 value, unsigned n)
1069 {
1070         s32 a = value >> (n - 1);
1071         if (a && a != -1)
1072                 return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
1073         return value & ((1 << n) - 1);
1074 }
1075
1076 /*
1077  * Extract/implement a data field from/to a little endian report (bit array).
1078  *
1079  * Code sort-of follows HID spec:
1080  *     http://www.usb.org/developers/hidpage/HID1_11.pdf
1081  *
1082  * While the USB HID spec allows unlimited length bit fields in "report
1083  * descriptors", most devices never use more than 16 bits.
1084  * One model of UPS is claimed to report "LINEV" as a 32-bit field.
1085  * Search linux-kernel and linux-usb-devel archives for "hid-core extract".
1086  */
1087
1088 static u32 __extract(u8 *report, unsigned offset, int n)
1089 {
1090         unsigned int idx = offset / 8;
1091         unsigned int bit_nr = 0;
1092         unsigned int bit_shift = offset % 8;
1093         int bits_to_copy = 8 - bit_shift;
1094         u32 value = 0;
1095         u32 mask = n < 32 ? (1U << n) - 1 : ~0U;
1096
1097         while (n > 0) {
1098                 value |= ((u32)report[idx] >> bit_shift) << bit_nr;
1099                 n -= bits_to_copy;
1100                 bit_nr += bits_to_copy;
1101                 bits_to_copy = 8;
1102                 bit_shift = 0;
1103                 idx++;
1104         }
1105
1106         return value & mask;
1107 }
1108
1109 u32 hid_field_extract(const struct hid_device *hid, u8 *report,
1110                         unsigned offset, unsigned n)
1111 {
1112         if (n > 32) {
1113                 hid_warn(hid, "hid_field_extract() called with n (%d) > 32! (%s)\n",
1114                          n, current->comm);
1115                 n = 32;
1116         }
1117
1118         return __extract(report, offset, n);
1119 }
1120 EXPORT_SYMBOL_GPL(hid_field_extract);
1121
1122 /*
1123  * "implement" : set bits in a little endian bit stream.
1124  * Same concepts as "extract" (see comments above).
1125  * The data mangled in the bit stream remains in little endian
1126  * order the whole time. It make more sense to talk about
1127  * endianness of register values by considering a register
1128  * a "cached" copy of the little endian bit stream.
1129  */
1130
1131 static void __implement(u8 *report, unsigned offset, int n, u32 value)
1132 {
1133         unsigned int idx = offset / 8;
1134         unsigned int bit_shift = offset % 8;
1135         int bits_to_set = 8 - bit_shift;
1136
1137         while (n - bits_to_set >= 0) {
1138                 report[idx] &= ~(0xff << bit_shift);
1139                 report[idx] |= value << bit_shift;
1140                 value >>= bits_to_set;
1141                 n -= bits_to_set;
1142                 bits_to_set = 8;
1143                 bit_shift = 0;
1144                 idx++;
1145         }
1146
1147         /* last nibble */
1148         if (n) {
1149                 u8 bit_mask = ((1U << n) - 1);
1150                 report[idx] &= ~(bit_mask << bit_shift);
1151                 report[idx] |= value << bit_shift;
1152         }
1153 }
1154
1155 static void implement(const struct hid_device *hid, u8 *report,
1156                       unsigned offset, unsigned n, u32 value)
1157 {
1158         if (unlikely(n > 32)) {
1159                 hid_warn(hid, "%s() called with n (%d) > 32! (%s)\n",
1160                          __func__, n, current->comm);
1161                 n = 32;
1162         } else if (n < 32) {
1163                 u32 m = (1U << n) - 1;
1164
1165                 if (unlikely(value > m)) {
1166                         hid_warn(hid,
1167                                  "%s() called with too large value %d (n: %d)! (%s)\n",
1168                                  __func__, value, n, current->comm);
1169                         WARN_ON(1);
1170                         value &= m;
1171                 }
1172         }
1173
1174         __implement(report, offset, n, value);
1175 }
1176
1177 /*
1178  * Search an array for a value.
1179  */
1180
1181 static int search(__s32 *array, __s32 value, unsigned n)
1182 {
1183         while (n--) {
1184                 if (*array++ == value)
1185                         return 0;
1186         }
1187         return -1;
1188 }
1189
1190 /**
1191  * hid_match_report - check if driver's raw_event should be called
1192  *
1193  * @hid: hid device
1194  * @report_type: type to match against
1195  *
1196  * compare hid->driver->report_table->report_type to report->type
1197  */
1198 static int hid_match_report(struct hid_device *hid, struct hid_report *report)
1199 {
1200         const struct hid_report_id *id = hid->driver->report_table;
1201
1202         if (!id) /* NULL means all */
1203                 return 1;
1204
1205         for (; id->report_type != HID_TERMINATOR; id++)
1206                 if (id->report_type == HID_ANY_ID ||
1207                                 id->report_type == report->type)
1208                         return 1;
1209         return 0;
1210 }
1211
1212 /**
1213  * hid_match_usage - check if driver's event should be called
1214  *
1215  * @hid: hid device
1216  * @usage: usage to match against
1217  *
1218  * compare hid->driver->usage_table->usage_{type,code} to
1219  * usage->usage_{type,code}
1220  */
1221 static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage)
1222 {
1223         const struct hid_usage_id *id = hid->driver->usage_table;
1224
1225         if (!id) /* NULL means all */
1226                 return 1;
1227
1228         for (; id->usage_type != HID_ANY_ID - 1; id++)
1229                 if ((id->usage_hid == HID_ANY_ID ||
1230                                 id->usage_hid == usage->hid) &&
1231                                 (id->usage_type == HID_ANY_ID ||
1232                                 id->usage_type == usage->type) &&
1233                                 (id->usage_code == HID_ANY_ID ||
1234                                  id->usage_code == usage->code))
1235                         return 1;
1236         return 0;
1237 }
1238
1239 static void hid_process_event(struct hid_device *hid, struct hid_field *field,
1240                 struct hid_usage *usage, __s32 value, int interrupt)
1241 {
1242         struct hid_driver *hdrv = hid->driver;
1243         int ret;
1244
1245         if (!list_empty(&hid->debug_list))
1246                 hid_dump_input(hid, usage, value);
1247
1248         if (hdrv && hdrv->event && hid_match_usage(hid, usage)) {
1249                 ret = hdrv->event(hid, field, usage, value);
1250                 if (ret != 0) {
1251                         if (ret < 0)
1252                                 hid_err(hid, "%s's event failed with %d\n",
1253                                                 hdrv->name, ret);
1254                         return;
1255                 }
1256         }
1257
1258         if (hid->claimed & HID_CLAIMED_INPUT)
1259                 hidinput_hid_event(hid, field, usage, value);
1260         if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event)
1261                 hid->hiddev_hid_event(hid, field, usage, value);
1262 }
1263
1264 /*
1265  * Analyse a received field, and fetch the data from it. The field
1266  * content is stored for next report processing (we do differential
1267  * reporting to the layer).
1268  */
1269
1270 static void hid_input_field(struct hid_device *hid, struct hid_field *field,
1271                             __u8 *data, int interrupt)
1272 {
1273         unsigned n;
1274         unsigned count = field->report_count;
1275         unsigned offset = field->report_offset;
1276         unsigned size = field->report_size;
1277         __s32 min = field->logical_minimum;
1278         __s32 max = field->logical_maximum;
1279         __s32 *value;
1280
1281         value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC);
1282         if (!value)
1283                 return;
1284
1285         for (n = 0; n < count; n++) {
1286
1287                 value[n] = min < 0 ?
1288                         snto32(hid_field_extract(hid, data, offset + n * size,
1289                                size), size) :
1290                         hid_field_extract(hid, data, offset + n * size, size);
1291
1292                 /* Ignore report if ErrorRollOver */
1293                 if (!(field->flags & HID_MAIN_ITEM_VARIABLE) &&
1294                     value[n] >= min && value[n] <= max &&
1295                     value[n] - min < field->maxusage &&
1296                     field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
1297                         goto exit;
1298         }
1299
1300         for (n = 0; n < count; n++) {
1301
1302                 if (HID_MAIN_ITEM_VARIABLE & field->flags) {
1303                         hid_process_event(hid, field, &field->usage[n], value[n], interrupt);
1304                         continue;
1305                 }
1306
1307                 if (field->value[n] >= min && field->value[n] <= max
1308                         && field->value[n] - min < field->maxusage
1309                         && field->usage[field->value[n] - min].hid
1310                         && search(value, field->value[n], count))
1311                                 hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt);
1312
1313                 if (value[n] >= min && value[n] <= max
1314                         && value[n] - min < field->maxusage
1315                         && field->usage[value[n] - min].hid
1316                         && search(field->value, value[n], count))
1317                                 hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt);
1318         }
1319
1320         memcpy(field->value, value, count * sizeof(__s32));
1321 exit:
1322         kfree(value);
1323 }
1324
1325 /*
1326  * Output the field into the report.
1327  */
1328
1329 static void hid_output_field(const struct hid_device *hid,
1330                              struct hid_field *field, __u8 *data)
1331 {
1332         unsigned count = field->report_count;
1333         unsigned offset = field->report_offset;
1334         unsigned size = field->report_size;
1335         unsigned n;
1336
1337         for (n = 0; n < count; n++) {
1338                 if (field->logical_minimum < 0) /* signed values */
1339                         implement(hid, data, offset + n * size, size,
1340                                   s32ton(field->value[n], size));
1341                 else                            /* unsigned values */
1342                         implement(hid, data, offset + n * size, size,
1343                                   field->value[n]);
1344         }
1345 }
1346
1347 /*
1348  * Create a report. 'data' has to be allocated using
1349  * hid_alloc_report_buf() so that it has proper size.
1350  */
1351
1352 void hid_output_report(struct hid_report *report, __u8 *data)
1353 {
1354         unsigned n;
1355
1356         if (report->id > 0)
1357                 *data++ = report->id;
1358
1359         memset(data, 0, ((report->size - 1) >> 3) + 1);
1360         for (n = 0; n < report->maxfield; n++)
1361                 hid_output_field(report->device, report->field[n], data);
1362 }
1363 EXPORT_SYMBOL_GPL(hid_output_report);
1364
1365 /*
1366  * Allocator for buffer that is going to be passed to hid_output_report()
1367  */
1368 u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags)
1369 {
1370         /*
1371          * 7 extra bytes are necessary to achieve proper functionality
1372          * of implement() working on 8 byte chunks
1373          */
1374
1375         int len = hid_report_len(report) + 7;
1376
1377         return kmalloc(len, flags);
1378 }
1379 EXPORT_SYMBOL_GPL(hid_alloc_report_buf);
1380
1381 /*
1382  * Set a field value. The report this field belongs to has to be
1383  * created and transferred to the device, to set this value in the
1384  * device.
1385  */
1386
1387 int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
1388 {
1389         unsigned size;
1390
1391         if (!field)
1392                 return -1;
1393
1394         size = field->report_size;
1395
1396         hid_dump_input(field->report->device, field->usage + offset, value);
1397
1398         if (offset >= field->report_count) {
1399                 hid_err(field->report->device, "offset (%d) exceeds report_count (%d)\n",
1400                                 offset, field->report_count);
1401                 return -1;
1402         }
1403         if (field->logical_minimum < 0) {
1404                 if (value != snto32(s32ton(value, size), size)) {
1405                         hid_err(field->report->device, "value %d is out of range\n", value);
1406                         return -1;
1407                 }
1408         }
1409         field->value[offset] = value;
1410         return 0;
1411 }
1412 EXPORT_SYMBOL_GPL(hid_set_field);
1413
1414 static struct hid_report *hid_get_report(struct hid_report_enum *report_enum,
1415                 const u8 *data)
1416 {
1417         struct hid_report *report;
1418         unsigned int n = 0;     /* Normally report number is 0 */
1419
1420         /* Device uses numbered reports, data[0] is report number */
1421         if (report_enum->numbered)
1422                 n = *data;
1423
1424         report = report_enum->report_id_hash[n];
1425         if (report == NULL)
1426                 dbg_hid("undefined report_id %u received\n", n);
1427
1428         return report;
1429 }
1430
1431 /*
1432  * Implement a generic .request() callback, using .raw_request()
1433  * DO NOT USE in hid drivers directly, but through hid_hw_request instead.
1434  */
1435 void __hid_request(struct hid_device *hid, struct hid_report *report,
1436                 int reqtype)
1437 {
1438         char *buf;
1439         int ret;
1440         int len;
1441
1442         buf = hid_alloc_report_buf(report, GFP_KERNEL);
1443         if (!buf)
1444                 return;
1445
1446         len = hid_report_len(report);
1447
1448         if (reqtype == HID_REQ_SET_REPORT)
1449                 hid_output_report(report, buf);
1450
1451         ret = hid->ll_driver->raw_request(hid, report->id, buf, len,
1452                                           report->type, reqtype);
1453         if (ret < 0) {
1454                 dbg_hid("unable to complete request: %d\n", ret);
1455                 goto out;
1456         }
1457
1458         if (reqtype == HID_REQ_GET_REPORT)
1459                 hid_input_report(hid, report->type, buf, ret, 0);
1460
1461 out:
1462         kfree(buf);
1463 }
1464 EXPORT_SYMBOL_GPL(__hid_request);
1465
1466 int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
1467                 int interrupt)
1468 {
1469         struct hid_report_enum *report_enum = hid->report_enum + type;
1470         struct hid_report *report;
1471         struct hid_driver *hdrv;
1472         unsigned int a;
1473         int rsize, csize = size;
1474         u8 *cdata = data;
1475         int ret = 0;
1476
1477         report = hid_get_report(report_enum, data);
1478         if (!report)
1479                 goto out;
1480
1481         if (report_enum->numbered) {
1482                 cdata++;
1483                 csize--;
1484         }
1485
1486         rsize = ((report->size - 1) >> 3) + 1;
1487
1488         if (rsize > HID_MAX_BUFFER_SIZE)
1489                 rsize = HID_MAX_BUFFER_SIZE;
1490
1491         if (csize < rsize) {
1492                 dbg_hid("report %d is too short, (%d < %d)\n", report->id,
1493                                 csize, rsize);
1494                 memset(cdata + csize, 0, rsize - csize);
1495         }
1496
1497         if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event)
1498                 hid->hiddev_report_event(hid, report);
1499         if (hid->claimed & HID_CLAIMED_HIDRAW) {
1500                 ret = hidraw_report_event(hid, data, size);
1501                 if (ret)
1502                         goto out;
1503         }
1504
1505         if (hid->claimed != HID_CLAIMED_HIDRAW && report->maxfield) {
1506                 for (a = 0; a < report->maxfield; a++)
1507                         hid_input_field(hid, report->field[a], cdata, interrupt);
1508                 hdrv = hid->driver;
1509                 if (hdrv && hdrv->report)
1510                         hdrv->report(hid, report);
1511         }
1512
1513         if (hid->claimed & HID_CLAIMED_INPUT)
1514                 hidinput_report_event(hid, report);
1515 out:
1516         return ret;
1517 }
1518 EXPORT_SYMBOL_GPL(hid_report_raw_event);
1519
1520 /**
1521  * hid_input_report - report data from lower layer (usb, bt...)
1522  *
1523  * @hid: hid device
1524  * @type: HID report type (HID_*_REPORT)
1525  * @data: report contents
1526  * @size: size of data parameter
1527  * @interrupt: distinguish between interrupt and control transfers
1528  *
1529  * This is data entry for lower layers.
1530  */
1531 int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt)
1532 {
1533         struct hid_report_enum *report_enum;
1534         struct hid_driver *hdrv;
1535         struct hid_report *report;
1536         int ret = 0;
1537
1538         if (!hid)
1539                 return -ENODEV;
1540
1541         if (down_trylock(&hid->driver_input_lock))
1542                 return -EBUSY;
1543
1544         if (!hid->driver) {
1545                 ret = -ENODEV;
1546                 goto unlock;
1547         }
1548         report_enum = hid->report_enum + type;
1549         hdrv = hid->driver;
1550
1551         if (!size) {
1552                 dbg_hid("empty report\n");
1553                 ret = -1;
1554                 goto unlock;
1555         }
1556
1557         /* Avoid unnecessary overhead if debugfs is disabled */
1558         if (!list_empty(&hid->debug_list))
1559                 hid_dump_report(hid, type, data, size);
1560
1561         report = hid_get_report(report_enum, data);
1562
1563         if (!report) {
1564                 ret = -1;
1565                 goto unlock;
1566         }
1567
1568         if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) {
1569                 ret = hdrv->raw_event(hid, report, data, size);
1570                 if (ret < 0)
1571                         goto unlock;
1572         }
1573
1574         ret = hid_report_raw_event(hid, type, data, size, interrupt);
1575
1576 unlock:
1577         up(&hid->driver_input_lock);
1578         return ret;
1579 }
1580 EXPORT_SYMBOL_GPL(hid_input_report);
1581
1582 static bool hid_match_one_id(struct hid_device *hdev,
1583                 const struct hid_device_id *id)
1584 {
1585         return (id->bus == HID_BUS_ANY || id->bus == hdev->bus) &&
1586                 (id->group == HID_GROUP_ANY || id->group == hdev->group) &&
1587                 (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) &&
1588                 (id->product == HID_ANY_ID || id->product == hdev->product);
1589 }
1590
1591 const struct hid_device_id *hid_match_id(struct hid_device *hdev,
1592                 const struct hid_device_id *id)
1593 {
1594         for (; id->bus; id++)
1595                 if (hid_match_one_id(hdev, id))
1596                         return id;
1597
1598         return NULL;
1599 }
1600
1601 static const struct hid_device_id hid_hiddev_list[] = {
1602         { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) },
1603         { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) },
1604         { }
1605 };
1606
1607 static bool hid_hiddev(struct hid_device *hdev)
1608 {
1609         return !!hid_match_id(hdev, hid_hiddev_list);
1610 }
1611
1612
1613 static ssize_t
1614 read_report_descriptor(struct file *filp, struct kobject *kobj,
1615                 struct bin_attribute *attr,
1616                 char *buf, loff_t off, size_t count)
1617 {
1618         struct device *dev = kobj_to_dev(kobj);
1619         struct hid_device *hdev = to_hid_device(dev);
1620
1621         if (off >= hdev->rsize)
1622                 return 0;
1623
1624         if (off + count > hdev->rsize)
1625                 count = hdev->rsize - off;
1626
1627         memcpy(buf, hdev->rdesc + off, count);
1628
1629         return count;
1630 }
1631
1632 static ssize_t
1633 show_country(struct device *dev, struct device_attribute *attr,
1634                 char *buf)
1635 {
1636         struct hid_device *hdev = to_hid_device(dev);
1637
1638         return sprintf(buf, "%02x\n", hdev->country & 0xff);
1639 }
1640
1641 static struct bin_attribute dev_bin_attr_report_desc = {
1642         .attr = { .name = "report_descriptor", .mode = 0444 },
1643         .read = read_report_descriptor,
1644         .size = HID_MAX_DESCRIPTOR_SIZE,
1645 };
1646
1647 static struct device_attribute dev_attr_country = {
1648         .attr = { .name = "country", .mode = 0444 },
1649         .show = show_country,
1650 };
1651
1652 int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
1653 {
1654         static const char *types[] = { "Device", "Pointer", "Mouse", "Device",
1655                 "Joystick", "Gamepad", "Keyboard", "Keypad",
1656                 "Multi-Axis Controller"
1657         };
1658         const char *type, *bus;
1659         char buf[64] = "";
1660         unsigned int i;
1661         int len;
1662         int ret;
1663
1664         if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE)
1665                 connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV);
1666         if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE)
1667                 connect_mask |= HID_CONNECT_HIDINPUT_FORCE;
1668         if (hdev->bus != BUS_USB)
1669                 connect_mask &= ~HID_CONNECT_HIDDEV;
1670         if (hid_hiddev(hdev))
1671                 connect_mask |= HID_CONNECT_HIDDEV_FORCE;
1672
1673         if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,
1674                                 connect_mask & HID_CONNECT_HIDINPUT_FORCE))
1675                 hdev->claimed |= HID_CLAIMED_INPUT;
1676
1677         if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect &&
1678                         !hdev->hiddev_connect(hdev,
1679                                 connect_mask & HID_CONNECT_HIDDEV_FORCE))
1680                 hdev->claimed |= HID_CLAIMED_HIDDEV;
1681         if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev))
1682                 hdev->claimed |= HID_CLAIMED_HIDRAW;
1683
1684         if (connect_mask & HID_CONNECT_DRIVER)
1685                 hdev->claimed |= HID_CLAIMED_DRIVER;
1686
1687         /* Drivers with the ->raw_event callback set are not required to connect
1688          * to any other listener. */
1689         if (!hdev->claimed && !hdev->driver->raw_event) {
1690                 hid_err(hdev, "device has no listeners, quitting\n");
1691                 return -ENODEV;
1692         }
1693
1694         if ((hdev->claimed & HID_CLAIMED_INPUT) &&
1695                         (connect_mask & HID_CONNECT_FF) && hdev->ff_init)
1696                 hdev->ff_init(hdev);
1697
1698         len = 0;
1699         if (hdev->claimed & HID_CLAIMED_INPUT)
1700                 len += sprintf(buf + len, "input");
1701         if (hdev->claimed & HID_CLAIMED_HIDDEV)
1702                 len += sprintf(buf + len, "%shiddev%d", len ? "," : "",
1703                                 hdev->minor);
1704         if (hdev->claimed & HID_CLAIMED_HIDRAW)
1705                 len += sprintf(buf + len, "%shidraw%d", len ? "," : "",
1706                                 ((struct hidraw *)hdev->hidraw)->minor);
1707
1708         type = "Device";
1709         for (i = 0; i < hdev->maxcollection; i++) {
1710                 struct hid_collection *col = &hdev->collection[i];
1711                 if (col->type == HID_COLLECTION_APPLICATION &&
1712                    (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
1713                    (col->usage & 0xffff) < ARRAY_SIZE(types)) {
1714                         type = types[col->usage & 0xffff];
1715                         break;
1716                 }
1717         }
1718
1719         switch (hdev->bus) {
1720         case BUS_USB:
1721                 bus = "USB";
1722                 break;
1723         case BUS_BLUETOOTH:
1724                 bus = "BLUETOOTH";
1725                 break;
1726         case BUS_I2C:
1727                 bus = "I2C";
1728                 break;
1729         default:
1730                 bus = "<UNKNOWN>";
1731         }
1732
1733         ret = device_create_file(&hdev->dev, &dev_attr_country);
1734         if (ret)
1735                 hid_warn(hdev,
1736                          "can't create sysfs country code attribute err: %d\n", ret);
1737
1738         hid_info(hdev, "%s: %s HID v%x.%02x %s [%s] on %s\n",
1739                  buf, bus, hdev->version >> 8, hdev->version & 0xff,
1740                  type, hdev->name, hdev->phys);
1741
1742         return 0;
1743 }
1744 EXPORT_SYMBOL_GPL(hid_connect);
1745
1746 void hid_disconnect(struct hid_device *hdev)
1747 {
1748         device_remove_file(&hdev->dev, &dev_attr_country);
1749         if (hdev->claimed & HID_CLAIMED_INPUT)
1750                 hidinput_disconnect(hdev);
1751         if (hdev->claimed & HID_CLAIMED_HIDDEV)
1752                 hdev->hiddev_disconnect(hdev);
1753         if (hdev->claimed & HID_CLAIMED_HIDRAW)
1754                 hidraw_disconnect(hdev);
1755         hdev->claimed = 0;
1756 }
1757 EXPORT_SYMBOL_GPL(hid_disconnect);
1758
1759 /*
1760  * A list of devices for which there is a specialized driver on HID bus.
1761  *
1762  * Please note that for multitouch devices (driven by hid-multitouch driver),
1763  * there is a proper autodetection and autoloading in place (based on presence
1764  * of HID_DG_CONTACTID), so those devices don't need to be added to this list,
1765  * as we are doing the right thing in hid_scan_usage().
1766  *
1767  * Autodetection for (USB) HID sensor hubs exists too. If a collection of type
1768  * physical is found inside a usage page of type sensor, hid-sensor-hub will be
1769  * used as a driver. See hid_scan_report().
1770  */
1771 static const struct hid_device_id hid_have_special_driver[] = {
1772         { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
1773         { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
1774         { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) },
1775         { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) },
1776         { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0xf705) },
1777         { HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_U1_DUAL) },
1778         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
1779         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
1780         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) },
1781         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1782         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1783         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1784         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1785         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1786         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1787         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1788         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1789         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1790         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1791         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1792         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) },
1793         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) },
1794         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) },
1795         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) },
1796         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) },
1797         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) },
1798         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1799         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1800         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
1801         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL) },
1802         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL2) },
1803         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL3) },
1804         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
1805         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL5) },
1806         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) },
1807         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) },
1808         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) },
1809         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1810         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1811         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1812         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1813         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1814         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
1815         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1816         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1817         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
1818         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
1819         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
1820         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
1821         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
1822         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
1823         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
1824         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
1825         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
1826         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
1827         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
1828         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
1829         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
1830         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ANSI) },
1831         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ISO) },
1832         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_JIS) },
1833         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
1834         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
1835         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
1836         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
1837         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
1838         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
1839         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
1840         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
1841         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
1842         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) },
1843         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) },
1844         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) },
1845         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI) },
1846         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO) },
1847         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS) },
1848         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING9_ANSI) },
1849         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING9_ISO) },
1850         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING9_JIS) },
1851         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) },
1852         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) },
1853         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) },
1854         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI) },
1855         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO) },
1856         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_JIS) },
1857         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_ANSI) },
1858         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1859         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1860         { HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_NOTEBOOK_KEYBOARD) },
1861         { HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_TOUCHPAD) },
1862         { HID_USB_DEVICE(USB_VENDOR_ID_AUREAL, USB_DEVICE_ID_AUREAL_W01RN) },
1863         { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
1864         { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185BFM, 0x2208) },
1865         { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185PC, 0x5506) },
1866         { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2PC, 0x1850) },
1867         { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2BFM, 0x5500) },
1868         { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
1869         { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
1870         { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
1871         { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
1872         { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
1873         { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS) },
1874         { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) },
1875         { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_AK1D) },
1876         { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_ACER_SWITCH12) },
1877         { HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_K90) },
1878         { HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) },
1879         { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_CP2112) },
1880         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) },
1881         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) },
1882         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) },
1883         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_4) },
1884         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
1885         { HID_USB_DEVICE(USB_VENDOR_ID_DELCOM, USB_DEVICE_ID_DELCOM_VISUAL_IND) },
1886         { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
1887         { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011) },
1888 #if IS_ENABLED(CONFIG_HID_MAYFLASH)
1889         { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_PS3) },
1890 #endif
1891         { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, USB_DEVICE_ID_DREAM_CHEEKY_WN) },
1892         { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, USB_DEVICE_ID_DREAM_CHEEKY_FA) },
1893         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
1894         { HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0009) },
1895         { HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0030) },
1896         { HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) },
1897         { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
1898         { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) },
1899         { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) },
1900         { HID_USB_DEVICE(USB_VENDOR_ID_GEMBIRD, USB_DEVICE_ID_GEMBIRD_JPD_DUALFORCE2) },
1901         { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) },
1902         { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) },
1903         { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
1904         { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
1905         { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
1906         { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) },
1907         { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) },
1908         { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A) },
1909         { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067) },
1910         { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A070) },
1911         { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A072) },
1912         { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081) },
1913         { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A0C2) },
1914         { HID_USB_DEVICE(USB_VENDOR_ID_HUION, USB_DEVICE_ID_HUION_TABLET) },
1915         { HID_USB_DEVICE(USB_VENDOR_ID_JESS2, USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD) },
1916         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ION, USB_DEVICE_ID_ICADE) },
1917         { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
1918         { HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) },
1919         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GILA_GAMING_MOUSE) },
1920         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_MANTICORE) },
1921         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GX_IMPERATOR) },
1922         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
1923         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_I405X) },
1924         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X) },
1925         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X_V2) },
1926         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X) },
1927         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_PENSKETCH_M912) },
1928         { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
1929         { HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) },
1930 #if IS_ENABLED(CONFIG_HID_LENOVO)
1931         { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) },
1932         { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CUSBKBD) },
1933         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CBTKBD) },
1934         { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPPRODOCK) },
1935 #endif
1936         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
1937         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
1938         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) },
1939         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) },
1940         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_PS3) },
1941         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_T651) },
1942         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) },
1943         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) },
1944         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) },
1945         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) },
1946         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) },
1947         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) },
1948         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DUAL_ACTION) },
1949         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) },
1950         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) },
1951         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
1952         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },
1953         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G29_WHEEL) },
1954         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G920_WHEEL) },
1955         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
1956         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) },
1957         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
1958         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) },
1959         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
1960         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
1961         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_VIBRATION_WHEEL) },
1962         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFP_WHEEL) },
1963         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFGT_WHEEL) },
1964         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
1965         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G27_WHEEL) },
1966 #if IS_ENABLED(CONFIG_HID_LOGITECH_DJ)
1967         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER) },
1968         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2) },
1969 #endif
1970         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) },
1971         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) },
1972         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) },
1973         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) },
1974         { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
1975         { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
1976         { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_LUXAFOR) },
1977         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500) },
1978         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_KEYBOARD) },
1979         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) },
1980         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) },
1981         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K_JP) },
1982         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE7K) },
1983         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) },
1984         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) },
1985         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K) },
1986         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
1987         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_OFFICE_KB) },
1988         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_3) },
1989         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_2) },
1990         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_JP) },
1991         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_4) },
1992         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_4_2) },
1993         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_4_JP) },
1994         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_7K) },
1995         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_600) },
1996         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3KV1) },
1997         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_POWER_COVER) },
1998         { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
1999         { HID_USB_DEVICE(USB_VENDOR_ID_MSI, USB_DEVICE_ID_MSI_GT683R_LED_PANEL) },
2000         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
2001         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) },
2002         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) },
2003         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) },
2004         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) },
2005         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) },
2006         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) },
2007         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) },
2008         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) },
2009         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) },
2010         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) },
2011         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) },
2012         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) },
2013         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) },
2014         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) },
2015         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) },
2016         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) },
2017         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) },
2018         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) },
2019         { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) },
2020         { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
2021         { HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT, USB_DEVICE_ID_PENMOUNT_6000) },
2022         { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
2023         { HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS, HID_ANY_ID) },
2024         { HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_KEYBOARD) },
2025         { HID_USB_DEVICE(USB_VENDOR_ID_RISO_KAGAKU, USB_DEVICE_ID_RI_KA_WEBMAIL) },
2026 #if IS_ENABLED(CONFIG_HID_ROCCAT)
2027         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) },
2028         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
2029         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKUFX) },
2030         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
2031         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
2032         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE) },
2033         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE_OPTICAL) },
2034         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEXTD) },
2035         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
2036         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_LUA) },
2037         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
2038         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) },
2039         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK) },
2040         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK_GLOW) },
2041         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK_PRO) },
2042         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_SAVU) },
2043 #endif
2044 #if IS_ENABLED(CONFIG_HID_SAITEK)
2045         { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000) },
2046         { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RAT7_OLD) },
2047         { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RAT7) },
2048         { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RAT9) },
2049         { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_MMO7) },
2050         { HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_RAT5) },
2051         { HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_RAT9) },
2052 #endif
2053         { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
2054         { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
2055         { HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
2056         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SMK, USB_DEVICE_ID_SMK_PS3_BDREMOTE) },
2057         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_BUZZ_CONTROLLER) },
2058         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_WIRELESS_BUZZ_CONTROLLER) },
2059         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_MOTION_CONTROLLER) },
2060         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_MOTION_CONTROLLER) },
2061         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER) },
2062         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER) },
2063         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_BDREMOTE) },
2064         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
2065         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
2066         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER) },
2067         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER) },
2068         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_2) },
2069         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_2) },
2070         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_DONGLE) },
2071         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
2072         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGP_MOUSE) },
2073         { HID_USB_DEVICE(USB_VENDOR_ID_SINO_LITE, USB_DEVICE_ID_SINO_LITE_CONTROLLER) },
2074         { HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, USB_DEVICE_ID_STEELSERIES_SRWS1) },
2075         { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
2076         { HID_USB_DEVICE(USB_VENDOR_ID_THINGM, USB_DEVICE_ID_BLINK1) },
2077         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
2078         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
2079         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) },
2080         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) },
2081         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
2082         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) },
2083         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
2084         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) },
2085         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) },
2086         { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) },
2087         { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_PRO) },
2088         { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
2089         { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
2090         { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
2091         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
2092         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
2093         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
2094         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
2095         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP1062) },
2096         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_WIRELESS_TABLET_TWHL850) },
2097         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_TWHA60) },
2098         { HID_USB_DEVICE(USB_VENDOR_ID_THQ, USB_DEVICE_ID_THQ_PS3_UDRAW) },
2099         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_YIYNOVA_TABLET) },
2100         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UGEE_TABLET_81) },
2101         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UGEE_TABLET_45) },
2102         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_DRAWIMAGE_G3) },
2103         { HID_USB_DEVICE(USB_VENDOR_ID_UGTIZER, USB_DEVICE_ID_UGTIZER_TABLET_GP0610) },
2104         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
2105         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SUPER_JOY_BOX_3) },
2106         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD) },
2107         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO) },
2108         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO) },
2109         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO) },
2110         { HID_USB_DEVICE(USB_VENDOR_ID_PLAYDOTCOM, USB_DEVICE_ID_PLAYDOTCOM_EMS_USBII) },
2111         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
2112         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
2113         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_Q_PAD) },
2114         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_PID_0038) },
2115         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
2116         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
2117         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET) },
2118         { HID_USB_DEVICE(USB_VENDOR_ID_X_TENSIONS, USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE) },
2119         { HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_XIN_MO_DUAL_ARCADE) },
2120         { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
2121         { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
2122         { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
2123
2124         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
2125         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) },
2126         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE2) },
2127         { HID_USB_DEVICE(USB_VENDOR_ID_RAZER, USB_DEVICE_ID_RAZER_BLADE_14) },
2128         { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM6533) },
2129         { }
2130 };
2131
2132 struct hid_dynid {
2133         struct list_head list;
2134         struct hid_device_id id;
2135 };
2136
2137 /**
2138  * store_new_id - add a new HID device ID to this driver and re-probe devices
2139  * @driver: target device driver
2140  * @buf: buffer for scanning device ID data
2141  * @count: input size
2142  *
2143  * Adds a new dynamic hid device ID to this driver,
2144  * and causes the driver to probe for all devices again.
2145  */
2146 static ssize_t store_new_id(struct device_driver *drv, const char *buf,
2147                 size_t count)
2148 {
2149         struct hid_driver *hdrv = to_hid_driver(drv);
2150         struct hid_dynid *dynid;
2151         __u32 bus, vendor, product;
2152         unsigned long driver_data = 0;
2153         int ret;
2154
2155         ret = sscanf(buf, "%x %x %x %lx",
2156                         &bus, &vendor, &product, &driver_data);
2157         if (ret < 3)
2158                 return -EINVAL;
2159
2160         dynid = kzalloc(sizeof(*dynid), GFP_KERNEL);
2161         if (!dynid)
2162                 return -ENOMEM;
2163
2164         dynid->id.bus = bus;
2165         dynid->id.group = HID_GROUP_ANY;
2166         dynid->id.vendor = vendor;
2167         dynid->id.product = product;
2168         dynid->id.driver_data = driver_data;
2169
2170         spin_lock(&hdrv->dyn_lock);
2171         list_add_tail(&dynid->list, &hdrv->dyn_list);
2172         spin_unlock(&hdrv->dyn_lock);
2173
2174         ret = driver_attach(&hdrv->driver);
2175
2176         return ret ? : count;
2177 }
2178 static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
2179
2180 static void hid_free_dynids(struct hid_driver *hdrv)
2181 {
2182         struct hid_dynid *dynid, *n;
2183
2184         spin_lock(&hdrv->dyn_lock);
2185         list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) {
2186                 list_del(&dynid->list);
2187                 kfree(dynid);
2188         }
2189         spin_unlock(&hdrv->dyn_lock);
2190 }
2191
2192 static const struct hid_device_id *hid_match_device(struct hid_device *hdev,
2193                 struct hid_driver *hdrv)
2194 {
2195         struct hid_dynid *dynid;
2196
2197         spin_lock(&hdrv->dyn_lock);
2198         list_for_each_entry(dynid, &hdrv->dyn_list, list) {
2199                 if (hid_match_one_id(hdev, &dynid->id)) {
2200                         spin_unlock(&hdrv->dyn_lock);
2201                         return &dynid->id;
2202                 }
2203         }
2204         spin_unlock(&hdrv->dyn_lock);
2205
2206         return hid_match_id(hdev, hdrv->id_table);
2207 }
2208
2209 static int hid_bus_match(struct device *dev, struct device_driver *drv)
2210 {
2211         struct hid_driver *hdrv = to_hid_driver(drv);
2212         struct hid_device *hdev = to_hid_device(dev);
2213
2214         return hid_match_device(hdev, hdrv) != NULL;
2215 }
2216
2217 static int hid_device_probe(struct device *dev)
2218 {
2219         struct hid_driver *hdrv = to_hid_driver(dev->driver);
2220         struct hid_device *hdev = to_hid_device(dev);
2221         const struct hid_device_id *id;
2222         int ret = 0;
2223
2224         if (down_interruptible(&hdev->driver_lock))
2225                 return -EINTR;
2226         if (down_interruptible(&hdev->driver_input_lock)) {
2227                 ret = -EINTR;
2228                 goto unlock_driver_lock;
2229         }
2230         hdev->io_started = false;
2231
2232         if (!hdev->driver) {
2233                 id = hid_match_device(hdev, hdrv);
2234                 if (id == NULL) {
2235                         ret = -ENODEV;
2236                         goto unlock;
2237                 }
2238
2239                 hdev->driver = hdrv;
2240                 if (hdrv->probe) {
2241                         ret = hdrv->probe(hdev, id);
2242                 } else { /* default probe */
2243                         ret = hid_open_report(hdev);
2244                         if (!ret)
2245                                 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
2246                 }
2247                 if (ret) {
2248                         hid_close_report(hdev);
2249                         hdev->driver = NULL;
2250                 }
2251         }
2252 unlock:
2253         if (!hdev->io_started)
2254                 up(&hdev->driver_input_lock);
2255 unlock_driver_lock:
2256         up(&hdev->driver_lock);
2257         return ret;
2258 }
2259
2260 static int hid_device_remove(struct device *dev)
2261 {
2262         struct hid_device *hdev = to_hid_device(dev);
2263         struct hid_driver *hdrv;
2264         int ret = 0;
2265
2266         if (down_interruptible(&hdev->driver_lock))
2267                 return -EINTR;
2268         if (down_interruptible(&hdev->driver_input_lock)) {
2269                 ret = -EINTR;
2270                 goto unlock_driver_lock;
2271         }
2272         hdev->io_started = false;
2273
2274         hdrv = hdev->driver;
2275         if (hdrv) {
2276                 if (hdrv->remove)
2277                         hdrv->remove(hdev);
2278                 else /* default remove */
2279                         hid_hw_stop(hdev);
2280                 hid_close_report(hdev);
2281                 hdev->driver = NULL;
2282         }
2283
2284         if (!hdev->io_started)
2285                 up(&hdev->driver_input_lock);
2286 unlock_driver_lock:
2287         up(&hdev->driver_lock);
2288         return ret;
2289 }
2290
2291 static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
2292                              char *buf)
2293 {
2294         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
2295
2296         return scnprintf(buf, PAGE_SIZE, "hid:b%04Xg%04Xv%08Xp%08X\n",
2297                          hdev->bus, hdev->group, hdev->vendor, hdev->product);
2298 }
2299 static DEVICE_ATTR_RO(modalias);
2300
2301 static struct attribute *hid_dev_attrs[] = {
2302         &dev_attr_modalias.attr,
2303         NULL,
2304 };
2305 static struct bin_attribute *hid_dev_bin_attrs[] = {
2306         &dev_bin_attr_report_desc,
2307         NULL
2308 };
2309 static const struct attribute_group hid_dev_group = {
2310         .attrs = hid_dev_attrs,
2311         .bin_attrs = hid_dev_bin_attrs,
2312 };
2313 __ATTRIBUTE_GROUPS(hid_dev);
2314
2315 static int hid_uevent(struct device *dev, struct kobj_uevent_env *env)
2316 {
2317         struct hid_device *hdev = to_hid_device(dev);
2318
2319         if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X",
2320                         hdev->bus, hdev->vendor, hdev->product))
2321                 return -ENOMEM;
2322
2323         if (add_uevent_var(env, "HID_NAME=%s", hdev->name))
2324                 return -ENOMEM;
2325
2326         if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys))
2327                 return -ENOMEM;
2328
2329         if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq))
2330                 return -ENOMEM;
2331
2332         if (add_uevent_var(env, "MODALIAS=hid:b%04Xg%04Xv%08Xp%08X",
2333                            hdev->bus, hdev->group, hdev->vendor, hdev->product))
2334                 return -ENOMEM;
2335
2336         return 0;
2337 }
2338
2339 static struct bus_type hid_bus_type = {
2340         .name           = "hid",
2341         .dev_groups     = hid_dev_groups,
2342         .match          = hid_bus_match,
2343         .probe          = hid_device_probe,
2344         .remove         = hid_device_remove,
2345         .uevent         = hid_uevent,
2346 };
2347
2348 /* a list of devices that shouldn't be handled by HID core at all */
2349 static const struct hid_device_id hid_ignore_list[] = {
2350         { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) },
2351         { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) },
2352         { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) },
2353         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) },
2354         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) },
2355         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) },
2356         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) },
2357         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) },
2358         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) },
2359         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) },
2360         { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) },
2361         { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) },
2362         { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)},
2363         { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)},
2364         { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) },
2365         { HID_USB_DEVICE(USB_VENDOR_ID_AXENTIA, USB_DEVICE_ID_AXENTIA_FM_RADIO) },
2366         { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) },
2367         { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) },
2368         { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) },
2369         { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI4713) },
2370         { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) },
2371         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) },
2372         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) },
2373         { HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) },
2374         { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) },
2375         { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
2376         { HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, 0x0400) },
2377         { HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, 0x0401) },
2378         { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
2379         { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
2380         { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
2381         { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) },
2382         { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) },
2383         { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) },
2384         { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) },
2385         { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) },
2386         { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) },
2387         { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) },
2388         { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) },
2389         { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) },
2390         { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_RADIOSHARK) },
2391         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) },
2392         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) },
2393         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) },
2394         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) },
2395         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) },
2396         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) },
2397         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) },
2398         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) },
2399         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) },
2400         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) },
2401         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) },
2402         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) },
2403         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) },
2404         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) },
2405         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) },
2406         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) },
2407         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) },
2408         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) },
2409         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) },
2410         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) },
2411         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) },
2412         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) },
2413         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) },
2414         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) },
2415         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) },
2416         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) },
2417         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) },
2418         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) },
2419         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) },
2420         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) },
2421         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) },
2422         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) },
2423         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) },
2424         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) },
2425         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) },
2426         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) },
2427         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) },
2428         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) },
2429         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) },
2430         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) },
2431         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) },
2432         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) },
2433         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) },
2434         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) },
2435         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) },
2436         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) },
2437         { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) },
2438         { HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_SPEAK_410) },
2439         { HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_SPEAK_510) },
2440         { HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_GN9350E) },
2441         { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) },
2442         { HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) },
2443         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) },
2444         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) },
2445         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) },
2446         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY2) },
2447         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) },
2448         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY2) },
2449         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) },
2450         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY2) },
2451         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYVOLTAGE) },
2452         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYCURRENT) },
2453         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTIME) },
2454         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTEMPERATURE) },
2455         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYPH) },
2456         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) },
2457         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) },
2458         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) },
2459         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIC) },
2460         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIB) },
2461         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY) },
2462         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) },
2463         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) },
2464         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOTOR) },
2465         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) },
2466         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) },
2467         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) },
2468         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) },
2469         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) },
2470         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER) },
2471         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER2) },
2472         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_ABSESP) },
2473         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_AUTODATABUS) },
2474         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MCT) },
2475         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HYBRID) },
2476         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HEATCONTROL) },
2477         { HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_BEATPAD) },
2478         { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) },
2479         { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) },
2480         { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) },
2481         { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) },
2482         { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICK16F1454) },
2483         { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICK16F1454_V2) },
2484         { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) },
2485         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) },
2486         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) },
2487         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) },
2488         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) },
2489         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) },
2490         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) },
2491         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) },
2492         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) },
2493         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) },
2494         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) },
2495         { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) },
2496         { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) },
2497         { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) },
2498         { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
2499         { HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
2500         { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
2501 #if IS_ENABLED(CONFIG_MOUSE_SYNAPTICS_USB)
2502         { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_TP) },
2503         { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_INT_TP) },
2504         { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_CPAD) },
2505         { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_STICK) },
2506         { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WP) },
2507         { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_COMP_TP) },
2508         { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WTP) },
2509         { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_DPAD) },
2510 #endif
2511         { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) },
2512         { }
2513 };
2514
2515 /**
2516  * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer
2517  *
2518  * There are composite devices for which we want to ignore only a certain
2519  * interface. This is a list of devices for which only the mouse interface will
2520  * be ignored. This allows a dedicated driver to take care of the interface.
2521  */
2522 static const struct hid_device_id hid_mouse_ignore_list[] = {
2523         /* appletouch driver */
2524         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
2525         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
2526         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
2527         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
2528         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
2529         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
2530         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
2531         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
2532         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
2533         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
2534         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
2535         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
2536         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
2537         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
2538         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
2539         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
2540         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
2541         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
2542         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
2543         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
2544         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
2545         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
2546         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
2547         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
2548         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
2549         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
2550         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
2551         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
2552         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
2553         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
2554         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
2555         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
2556         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
2557         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
2558         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
2559         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
2560         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
2561         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
2562         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
2563         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
2564         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
2565         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
2566         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
2567         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
2568         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) },
2569         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) },
2570         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) },
2571         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI) },
2572         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO) },
2573         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS) },
2574         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING9_ANSI) },
2575         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING9_ISO) },
2576         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING9_JIS) },
2577         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
2578         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
2579         { }
2580 };
2581
2582 bool hid_ignore(struct hid_device *hdev)
2583 {
2584         if (hdev->quirks & HID_QUIRK_NO_IGNORE)
2585                 return false;
2586         if (hdev->quirks & HID_QUIRK_IGNORE)
2587                 return true;
2588
2589         switch (hdev->vendor) {
2590         case USB_VENDOR_ID_CODEMERCS:
2591                 /* ignore all Code Mercenaries IOWarrior devices */
2592                 if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST &&
2593                                 hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST)
2594                         return true;
2595                 break;
2596         case USB_VENDOR_ID_LOGITECH:
2597                 if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST &&
2598                                 hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST)
2599                         return true;
2600                 /*
2601                  * The Keene FM transmitter USB device has the same USB ID as
2602                  * the Logitech AudioHub Speaker, but it should ignore the hid.
2603                  * Check if the name is that of the Keene device.
2604                  * For reference: the name of the AudioHub is
2605                  * "HOLTEK  AudioHub Speaker".
2606                  */
2607                 if (hdev->product == USB_DEVICE_ID_LOGITECH_AUDIOHUB &&
2608                         !strcmp(hdev->name, "HOLTEK  B-LINK USB Audio  "))
2609                                 return true;
2610                 break;
2611         case USB_VENDOR_ID_SOUNDGRAPH:
2612                 if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST &&
2613                     hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST)
2614                         return true;
2615                 break;
2616         case USB_VENDOR_ID_HANWANG:
2617                 if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST &&
2618                     hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST)
2619                         return true;
2620                 break;
2621         case USB_VENDOR_ID_JESS:
2622                 if (hdev->product == USB_DEVICE_ID_JESS_YUREX &&
2623                                 hdev->type == HID_TYPE_USBNONE)
2624                         return true;
2625                 break;
2626         case USB_VENDOR_ID_VELLEMAN:
2627                 /* These are not HID devices.  They are handled by comedi. */
2628                 if ((hdev->product >= USB_DEVICE_ID_VELLEMAN_K8055_FIRST &&
2629                      hdev->product <= USB_DEVICE_ID_VELLEMAN_K8055_LAST) ||
2630                     (hdev->product >= USB_DEVICE_ID_VELLEMAN_K8061_FIRST &&
2631                      hdev->product <= USB_DEVICE_ID_VELLEMAN_K8061_LAST))
2632                         return true;
2633                 break;
2634         case USB_VENDOR_ID_ATMEL_V_USB:
2635                 /* Masterkit MA901 usb radio based on Atmel tiny85 chip and
2636                  * it has the same USB ID as many Atmel V-USB devices. This
2637                  * usb radio is handled by radio-ma901.c driver so we want
2638                  * ignore the hid. Check the name, bus, product and ignore
2639                  * if we have MA901 usb radio.
2640                  */
2641                 if (hdev->product == USB_DEVICE_ID_ATMEL_V_USB &&
2642                         hdev->bus == BUS_USB &&
2643                         strncmp(hdev->name, "www.masterkit.ru MA901", 22) == 0)
2644                         return true;
2645                 break;
2646         }
2647
2648         if (hdev->type == HID_TYPE_USBMOUSE &&
2649                         hid_match_id(hdev, hid_mouse_ignore_list))
2650                 return true;
2651
2652         return !!hid_match_id(hdev, hid_ignore_list);
2653 }
2654 EXPORT_SYMBOL_GPL(hid_ignore);
2655
2656 int hid_add_device(struct hid_device *hdev)
2657 {
2658         static atomic_t id = ATOMIC_INIT(0);
2659         int ret;
2660
2661         if (WARN_ON(hdev->status & HID_STAT_ADDED))
2662                 return -EBUSY;
2663
2664         /* we need to kill them here, otherwise they will stay allocated to
2665          * wait for coming driver */
2666         if (hid_ignore(hdev))
2667                 return -ENODEV;
2668
2669         /*
2670          * Check for the mandatory transport channel.
2671          */
2672          if (!hdev->ll_driver->raw_request) {
2673                 hid_err(hdev, "transport driver missing .raw_request()\n");
2674                 return -EINVAL;
2675          }
2676
2677         /*
2678          * Read the device report descriptor once and use as template
2679          * for the driver-specific modifications.
2680          */
2681         ret = hdev->ll_driver->parse(hdev);
2682         if (ret)
2683                 return ret;
2684         if (!hdev->dev_rdesc)
2685                 return -ENODEV;
2686
2687         /*
2688          * Scan generic devices for group information
2689          */
2690         if (hid_ignore_special_drivers) {
2691                 hdev->group = HID_GROUP_GENERIC;
2692         } else if (!hdev->group &&
2693                    !hid_match_id(hdev, hid_have_special_driver)) {
2694                 ret = hid_scan_report(hdev);
2695                 if (ret)
2696                         hid_warn(hdev, "bad device descriptor (%d)\n", ret);
2697         }
2698
2699         /* XXX hack, any other cleaner solution after the driver core
2700          * is converted to allow more than 20 bytes as the device name? */
2701         dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
2702                      hdev->vendor, hdev->product, atomic_inc_return(&id));
2703
2704         hid_debug_register(hdev, dev_name(&hdev->dev));
2705         ret = device_add(&hdev->dev);
2706         if (!ret)
2707                 hdev->status |= HID_STAT_ADDED;
2708         else
2709                 hid_debug_unregister(hdev);
2710
2711         return ret;
2712 }
2713 EXPORT_SYMBOL_GPL(hid_add_device);
2714
2715 /**
2716  * hid_allocate_device - allocate new hid device descriptor
2717  *
2718  * Allocate and initialize hid device, so that hid_destroy_device might be
2719  * used to free it.
2720  *
2721  * New hid_device pointer is returned on success, otherwise ERR_PTR encoded
2722  * error value.
2723  */
2724 struct hid_device *hid_allocate_device(void)
2725 {
2726         struct hid_device *hdev;
2727         int ret = -ENOMEM;
2728
2729         hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
2730         if (hdev == NULL)
2731                 return ERR_PTR(ret);
2732
2733         device_initialize(&hdev->dev);
2734         hdev->dev.release = hid_device_release;
2735         hdev->dev.bus = &hid_bus_type;
2736         device_enable_async_suspend(&hdev->dev);
2737
2738         hid_close_report(hdev);
2739
2740         init_waitqueue_head(&hdev->debug_wait);
2741         INIT_LIST_HEAD(&hdev->debug_list);
2742         spin_lock_init(&hdev->debug_list_lock);
2743         sema_init(&hdev->driver_lock, 1);
2744         sema_init(&hdev->driver_input_lock, 1);
2745
2746         return hdev;
2747 }
2748 EXPORT_SYMBOL_GPL(hid_allocate_device);
2749
2750 static void hid_remove_device(struct hid_device *hdev)
2751 {
2752         if (hdev->status & HID_STAT_ADDED) {
2753                 device_del(&hdev->dev);
2754                 hid_debug_unregister(hdev);
2755                 hdev->status &= ~HID_STAT_ADDED;
2756         }
2757         kfree(hdev->dev_rdesc);
2758         hdev->dev_rdesc = NULL;
2759         hdev->dev_rsize = 0;
2760 }
2761
2762 /**
2763  * hid_destroy_device - free previously allocated device
2764  *
2765  * @hdev: hid device
2766  *
2767  * If you allocate hid_device through hid_allocate_device, you should ever
2768  * free by this function.
2769  */
2770 void hid_destroy_device(struct hid_device *hdev)
2771 {
2772         hid_remove_device(hdev);
2773         put_device(&hdev->dev);
2774 }
2775 EXPORT_SYMBOL_GPL(hid_destroy_device);
2776
2777 int __hid_register_driver(struct hid_driver *hdrv, struct module *owner,
2778                 const char *mod_name)
2779 {
2780         int ret;
2781
2782         hdrv->driver.name = hdrv->name;
2783         hdrv->driver.bus = &hid_bus_type;
2784         hdrv->driver.owner = owner;
2785         hdrv->driver.mod_name = mod_name;
2786
2787         INIT_LIST_HEAD(&hdrv->dyn_list);
2788         spin_lock_init(&hdrv->dyn_lock);
2789
2790         ret = driver_register(&hdrv->driver);
2791         if (ret)
2792                 return ret;
2793
2794         ret = driver_create_file(&hdrv->driver, &driver_attr_new_id);
2795         if (ret)
2796                 driver_unregister(&hdrv->driver);
2797
2798         return ret;
2799 }
2800 EXPORT_SYMBOL_GPL(__hid_register_driver);
2801
2802 void hid_unregister_driver(struct hid_driver *hdrv)
2803 {
2804         driver_remove_file(&hdrv->driver, &driver_attr_new_id);
2805         driver_unregister(&hdrv->driver);
2806         hid_free_dynids(hdrv);
2807 }
2808 EXPORT_SYMBOL_GPL(hid_unregister_driver);
2809
2810 int hid_check_keys_pressed(struct hid_device *hid)
2811 {
2812         struct hid_input *hidinput;
2813         int i;
2814
2815         if (!(hid->claimed & HID_CLAIMED_INPUT))
2816                 return 0;
2817
2818         list_for_each_entry(hidinput, &hid->inputs, list) {
2819                 for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++)
2820                         if (hidinput->input->key[i])
2821                                 return 1;
2822         }
2823
2824         return 0;
2825 }
2826
2827 EXPORT_SYMBOL_GPL(hid_check_keys_pressed);
2828
2829 static int __init hid_init(void)
2830 {
2831         int ret;
2832
2833         if (hid_debug)
2834                 pr_warn("hid_debug is now used solely for parser and driver debugging.\n"
2835                         "debugfs is now used for inspecting the device (report descriptor, reports)\n");
2836
2837         ret = bus_register(&hid_bus_type);
2838         if (ret) {
2839                 pr_err("can't register hid bus\n");
2840                 goto err;
2841         }
2842
2843         ret = hidraw_init();
2844         if (ret)
2845                 goto err_bus;
2846
2847         hid_debug_init();
2848
2849         return 0;
2850 err_bus:
2851         bus_unregister(&hid_bus_type);
2852 err:
2853         return ret;
2854 }
2855
2856 static void __exit hid_exit(void)
2857 {
2858         hid_debug_exit();
2859         hidraw_exit();
2860         bus_unregister(&hid_bus_type);
2861 }
2862
2863 module_init(hid_init);
2864 module_exit(hid_exit);
2865
2866 MODULE_AUTHOR("Andreas Gal");
2867 MODULE_AUTHOR("Vojtech Pavlik");
2868 MODULE_AUTHOR("Jiri Kosina");
2869 MODULE_LICENSE(DRIVER_LICENSE);
2870