LXR linux/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
  48int hid_debug = 0;
  49module_param_named(debug, hid_debug, int, 0600);
  50MODULE_PARM_DESC(debug, "toggle HID debugging messages");
  51EXPORT_SYMBOL_GPL(hid_debug);
  52
  53static int hid_ignore_special_drivers = 0;
  54module_param_named(ignore_special_drivers, hid_ignore_special_drivers, int, 0600);
  55MODULE_PARM_DESC(debug, "Ignore any special drivers and handle all devices by generic driver");
  56
  57/*
  58 * Register a new report for a device.
  59 */
  60
  61struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
  62{
  63        struct hid_report_enum *report_enum = device->report_enum + type;
  64        struct hid_report *report;
  65
  66        if (report_enum->report_id_hash[id])
  67                return report_enum->report_id_hash[id];
  68
  69        report = kzalloc(sizeof(struct hid_report), GFP_KERNEL);
  70        if (!report)
  71                return NULL;
  72
  73        if (id != 0)
  74                report_enum->numbered = 1;
  75
  76        report->id = id;
  77        report->type = type;
  78        report->size = 0;
  79        report->device = device;
  80        report_enum->report_id_hash[id] = report;
  81
  82        list_add_tail(&report->list, &report_enum->report_list);
  83
  84        return report;
  85}
  86EXPORT_SYMBOL_GPL(hid_register_report);
  87
  88/*
  89 * Register a new field for this report.
  90 */
  91
  92static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values)
  93{
  94        struct hid_field *field;
  95
  96        if (report->maxfield == HID_MAX_FIELDS) {
  97                hid_err(report->device, "too many fields in report\n");
  98                return NULL;
  99        }
 100
 101        field = kzalloc((sizeof(struct hid_field) +
 102                         usages * sizeof(struct hid_usage) +
 103                         values * sizeof(unsigned)), GFP_KERNEL);
 104        if (!field)
 105                return NULL;
 106
 107        field->index = report->maxfield++;
 108        report->field[field->index] = field;
 109        field->usage = (struct hid_usage *)(field + 1);
 110        field->value = (s32 *)(field->usage + usages);
 111        field->report = report;
 112
 113        return field;
 114}
 115
 116/*
 117 * Open a collection. The type/usage is pushed on the stack.
 118 */
 119
 120static int open_collection(struct hid_parser *parser, unsigned type)
 121{
 122        struct hid_collection *collection;
 123        unsigned usage;
 124
 125        usage = parser->local.usage[0];
 126
 127        if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) {
 128                hid_err(parser->device, "collection stack overflow\n");
 129                return -1;
 130        }
 131
 132        if (parser->device->maxcollection == parser->device->collection_size) {
 133                collection = kmalloc(sizeof(struct hid_collection) *
 134                                parser->device->collection_size * 2, GFP_KERNEL);
 135                if (collection == NULL) {
 136                        hid_err(parser->device, "failed to reallocate collection array\n");
 137                        return -1;
 138                }
 139                memcpy(collection, parser->device->collection,
 140                        sizeof(struct hid_collection) *
 141                        parser->device->collection_size);
 142                memset(collection + parser->device->collection_size, 0,
 143                        sizeof(struct hid_collection) *
 144                        parser->device->collection_size);
 145                kfree(parser->device->collection);
 146                parser->device->collection = collection;
 147                parser->device->collection_size *= 2;
 148        }
 149
 150        parser->collection_stack[parser->collection_stack_ptr++] =
 151                parser->device->maxcollection;
 152
 153        collection = parser->device->collection +
 154                parser->device->maxcollection++;
 155        collection->type = type;
 156        collection->usage = usage;
 157        collection->level = parser->collection_stack_ptr - 1;
 158
 159        if (type == HID_COLLECTION_APPLICATION)
 160                parser->device->maxapplication++;
 161
 162        return 0;
 163}
 164
 165/*
 166 * Close a collection.
 167 */
 168
 169static int close_collection(struct hid_parser *parser)
 170{
 171        if (!parser->collection_stack_ptr) {
 172                hid_err(parser->device, "collection stack underflow\n");
 173                return -1;
 174        }
 175        parser->collection_stack_ptr--;
 176        return 0;
 177}
 178
 179/*
 180 * Climb up the stack, search for the specified collection type
 181 * and return the usage.
 182 */
 183
 184static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type)
 185{
 186        struct hid_collection *collection = parser->device->collection;
 187        int n;
 188
 189        for (n = parser->collection_stack_ptr - 1; n >= 0; n--) {
 190                unsigned index = parser->collection_stack[n];
 191                if (collection[index].type == type)
 192                        return collection[index].usage;
 193        }
 194        return 0; /* we know nothing about this usage type */
 195}
 196
 197/*
 198 * Add a usage to the temporary parser table.
 199 */
 200
 201static int hid_add_usage(struct hid_parser *parser, unsigned usage)
 202{
 203        if (parser->local.usage_index >= HID_MAX_USAGES) {
 204                hid_err(parser->device, "usage index exceeded\n");
 205                return -1;
 206        }
 207        parser->local.usage[parser->local.usage_index] = usage;
 208        parser->local.collection_index[parser->local.usage_index] =
 209                parser->collection_stack_ptr ?
 210                parser->collection_stack[parser->collection_stack_ptr - 1] : 0;
 211        parser->local.usage_index++;
 212        return 0;
 213}
 214
 215/*
 216 * Register a new field for this report.
 217 */
 218
 219static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags)
 220{
 221        struct hid_report *report;
 222        struct hid_field *field;
 223        int usages;
 224        unsigned offset;
 225        int i;
 226
 227        report = hid_register_report(parser->device, report_type, parser->global.report_id);
 228        if (!report) {
 229                hid_err(parser->device, "hid_register_report failed\n");
 230                return -1;
 231        }
 232
 233        /* Handle both signed and unsigned cases properly */
 234        if ((parser->global.logical_minimum < 0 &&
 235                parser->global.logical_maximum <
 236                parser->global.logical_minimum) ||
 237                (parser->global.logical_minimum >= 0 &&
 238                (__u32)parser->global.logical_maximum <
 239                (__u32)parser->global.logical_minimum)) {
 240                dbg_hid("logical range invalid 0x%x 0x%x\n",
 241                        parser->global.logical_minimum,
 242                        parser->global.logical_maximum);
 243                return -1;
 244        }
 245
 246        offset = report->size;
 247        report->size += parser->global.report_size * parser->global.report_count;
 248
 249        if (!parser->local.usage_index) /* Ignore padding fields */
 250                return 0;
 251
 252        usages = max_t(int, parser->local.usage_index, parser->global.report_count);
 253
 254        field = hid_register_field(report, usages, parser->global.report_count);
 255        if (!field)
 256                return 0;
 257
 258        field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
 259        field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
 260        field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
 261
 262        for (i = 0; i < usages; i++) {
 263                int j = i;
 264                /* Duplicate the last usage we parsed if we have excess values */
 265                if (i >= parser->local.usage_index)
 266                        j = parser->local.usage_index - 1;
 267                field->usage[i].hid = parser->local.usage[j];
 268                field->usage[i].collection_index =
 269                        parser->local.collection_index[j];
 270        }
 271
 272        field->maxusage = usages;
 273        field->flags = flags;
 274        field->report_offset = offset;
 275        field->report_type = report_type;
 276        field->report_size = parser->global.report_size;
 277        field->report_count = parser->global.report_count;
 278        field->logical_minimum = parser->global.logical_minimum;
 279        field->logical_maximum = parser->global.logical_maximum;
 280        field->physical_minimum = parser->global.physical_minimum;
 281        field->physical_maximum = parser->global.physical_maximum;
 282        field->unit_exponent = parser->global.unit_exponent;
 283        field->unit = parser->global.unit;
 284
 285        return 0;
 286}
 287
 288/*
 289 * Read data value from item.
 290 */
 291
 292static u32 item_udata(struct hid_item *item)
 293{
 294        switch (item->size) {
 295        case 1: return item->data.u8;
 296        case 2: return item->data.u16;
 297        case 4: return item->data.u32;
 298        }
 299        return 0;
 300}
 301
 302static s32 item_sdata(struct hid_item *item)
 303{
 304        switch (item->size) {
 305        case 1: return item->data.s8;
 306        case 2: return item->data.s16;
 307        case 4: return item->data.s32;
 308        }
 309        return 0;
 310}
 311
 312/*
 313 * Process a global item.
 314 */
 315
 316static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
 317{
 318        switch (item->tag) {
 319        case HID_GLOBAL_ITEM_TAG_PUSH:
 320
 321                if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
 322                        hid_err(parser->device, "global environment stack overflow\n");
 323                        return -1;
 324                }
 325
 326                memcpy(parser->global_stack + parser->global_stack_ptr++,
 327                        &parser->global, sizeof(struct hid_global));
 328                return 0;
 329
 330        case HID_GLOBAL_ITEM_TAG_POP:
 331
 332                if (!parser->global_stack_ptr) {
 333                        hid_err(parser->device, "global environment stack underflow\n");
 334                        return -1;
 335                }
 336
 337                memcpy(&parser->global, parser->global_stack +
 338                        --parser->global_stack_ptr, sizeof(struct hid_global));
 339                return 0;
 340
 341        case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
 342                parser->global.usage_page = item_udata(item);
 343                return 0;
 344
 345        case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
 346                parser->global.logical_minimum = item_sdata(item);
 347                return 0;
 348
 349        case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
 350                if (parser->global.logical_minimum < 0)
 351                        parser->global.logical_maximum = item_sdata(item);
 352                else
 353                        parser->global.logical_maximum = item_udata(item);
 354                return 0;
 355
 356        case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
 357                parser->global.physical_minimum = item_sdata(item);
 358                return 0;
 359
 360        case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
 361                if (parser->global.physical_minimum < 0)
 362                        parser->global.physical_maximum = item_sdata(item);
 363                else
 364                        parser->global.physical_maximum = item_udata(item);
 365                return 0;
 366
 367        case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
 368                parser->global.unit_exponent = item_sdata(item);
 369                return 0;
 370
 371        case HID_GLOBAL_ITEM_TAG_UNIT:
 372                parser->global.unit = item_udata(item);
 373                return 0;
 374
 375        case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
 376                parser->global.report_size = item_udata(item);
 377                if (parser->global.report_size > 96) {
 378                        hid_err(parser->device, "invalid report_size %d\n",
 379                                        parser->global.report_size);
 380                        return -1;
 381                }
 382                return 0;
 383
 384        case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
 385                parser->global.report_count = item_udata(item);
 386                if (parser->global.report_count > HID_MAX_USAGES) {
 387                        hid_err(parser->device, "invalid report_count %d\n",
 388                                        parser->global.report_count);
 389                        return -1;
 390                }
 391                return 0;
 392
 393        case HID_GLOBAL_ITEM_TAG_REPORT_ID:
 394                parser->global.report_id = item_udata(item);
 395                if (parser->global.report_id == 0) {
 396                        hid_err(parser->device, "report_id 0 is invalid\n");
 397                        return -1;
 398                }
 399                return 0;
 400
 401        default:
 402                hid_err(parser->device, "unknown global tag 0x%x\n", item->tag);
 403                return -1;
 404        }
 405}
 406
 407/*
 408 * Process a local item.
 409 */
 410
 411static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
 412{
 413        __u32 data;
 414        unsigned n;
 415
 416        data = item_udata(item);
 417
 418        switch (item->tag) {
 419        case HID_LOCAL_ITEM_TAG_DELIMITER:
 420
 421                if (data) {
 422                        /*
 423                         * We treat items before the first delimiter
 424                         * as global to all usage sets (branch 0).
 425                         * In the moment we process only these global
 426                         * items and the first delimiter set.
 427                         */
 428                        if (parser->local.delimiter_depth != 0) {
 429                                hid_err(parser->device, "nested delimiters\n");
 430                                return -1;
 431                        }
 432                        parser->local.delimiter_depth++;
 433                        parser->local.delimiter_branch++;
 434                } else {
 435                        if (parser->local.delimiter_depth < 1) {
 436                                hid_err(parser->device, "bogus close delimiter\n");
 437                                return -1;
 438                        }
 439                        parser->local.delimiter_depth--;
 440                }
 441                return 1;
 442
 443        case HID_LOCAL_ITEM_TAG_USAGE:
 444
 445                if (parser->local.delimiter_branch > 1) {
 446                        dbg_hid("alternative usage ignored\n");
 447                        return 0;
 448                }
 449
 450                if (item->size <= 2)
 451                        data = (parser->global.usage_page << 16) + data;
 452
 453                return hid_add_usage(parser, data);
 454
 455        case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
 456
 457                if (parser->local.delimiter_branch > 1) {
 458                        dbg_hid("alternative usage ignored\n");
 459                        return 0;
 460                }
 461
 462                if (item->size <= 2)
 463                        data = (parser->global.usage_page << 16) + data;
 464
 465                parser->local.usage_minimum = data;
 466                return 0;
 467
 468        case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
 469
 470                if (parser->local.delimiter_branch > 1) {
 471                        dbg_hid("alternative usage ignored\n");
 472                        return 0;
 473                }
 474
 475                if (item->size <= 2)
 476                        data = (parser->global.usage_page << 16) + data;
 477
 478                for (n = parser->local.usage_minimum; n <= data; n++)
 479                        if (hid_add_usage(parser, n)) {
 480                                dbg_hid("hid_add_usage failed\n");
 481                                return -1;
 482                        }
 483                return 0;
 484
 485        default:
 486
 487                dbg_hid("unknown local item tag 0x%x\n", item->tag);
 488                return 0;
 489        }
 490        return 0;
 491}
 492
 493/*
 494 * Process a main item.
 495 */
 496
 497static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
 498{
 499        __u32 data;
 500        int ret;
 501
 502        data = item_udata(item);
 503
 504        switch (item->tag) {
 505        case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
 506                ret = open_collection(parser, data & 0xff);
 507                break;
 508        case HID_MAIN_ITEM_TAG_END_COLLECTION:
 509                ret = close_collection(parser);
 510                break;
 511        case HID_MAIN_ITEM_TAG_INPUT:
 512                ret = hid_add_field(parser, HID_INPUT_REPORT, data);
 513                break;
 514        case HID_MAIN_ITEM_TAG_OUTPUT:
 515                ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
 516                break;
 517        case HID_MAIN_ITEM_TAG_FEATURE:
 518                ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
 519                break;
 520        default:
 521                hid_err(parser->device, "unknown main item tag 0x%x\n", item->tag);
 522                ret = 0;
 523        }
 524
 525        memset(&parser->local, 0, sizeof(parser->local));       /* Reset the local parser environment */
 526
 527        return ret;
 528}
 529
 530/*
 531 * Process a reserved item.
 532 */
 533
 534static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
 535{
 536        dbg_hid("reserved item type, tag 0x%x\n", item->tag);
 537        return 0;
 538}
 539
 540/*
 541 * Free a report and all registered fields. The field->usage and
 542 * field->value table's are allocated behind the field, so we need
 543 * only to free(field) itself.
 544 */
 545
 546static void hid_free_report(struct hid_report *report)
 547{
 548        unsigned n;
 549
 550        for (n = 0; n < report->maxfield; n++)
 551                kfree(report->field[n]);
 552        kfree(report);
 553}
 554
 555/*
 556 * Close report. This function returns the device
 557 * state to the point prior to hid_open_report().
 558 */
 559static void hid_close_report(struct hid_device *device)
 560{
 561        unsigned i, j;
 562
 563        for (i = 0; i < HID_REPORT_TYPES; i++) {
 564                struct hid_report_enum *report_enum = device->report_enum + i;
 565
 566                for (j = 0; j < 256; j++) {
 567                        struct hid_report *report = report_enum->report_id_hash[j];
 568                        if (report)
 569                                hid_free_report(report);
 570                }
 571                memset(report_enum, 0, sizeof(*report_enum));
 572                INIT_LIST_HEAD(&report_enum->report_list);
 573        }
 574
 575        kfree(device->rdesc);
 576        device->rdesc = NULL;
 577        device->rsize = 0;
 578
 579        kfree(device->collection);
 580        device->collection = NULL;
 581        device->collection_size = 0;
 582        device->maxcollection = 0;
 583        device->maxapplication = 0;
 584
 585        device->status &= ~HID_STAT_PARSED;
 586}
 587
 588/*
 589 * Free a device structure, all reports, and all fields.
 590 */
 591
 592static void hid_device_release(struct device *dev)
 593{
 594        struct hid_device *hid = container_of(dev, struct hid_device, dev);
 595
 596        hid_close_report(hid);
 597        kfree(hid->dev_rdesc);
 598        kfree(hid);
 599}
 600
 601/*
 602 * Fetch a report description item from the data stream. We support long
 603 * items, though they are not used yet.
 604 */
 605
 606static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
 607{
 608        u8 b;
 609
 610        if ((end - start) <= 0)
 611                return NULL;
 612
 613        b = *start++;
 614
 615        item->type = (b >> 2) & 3;
 616        item->tag  = (b >> 4) & 15;
 617
 618        if (item->tag == HID_ITEM_TAG_LONG) {
 619
 620                item->format = HID_ITEM_FORMAT_LONG;
 621
 622                if ((end - start) < 2)
 623                        return NULL;
 624
 625                item->size = *start++;
 626                item->tag  = *start++;
 627
 628                if ((end - start) < item->size)
 629                        return NULL;
 630
 631                item->data.longdata = start;
 632                start += item->size;
 633                return start;
 634        }
 635
 636        item->format = HID_ITEM_FORMAT_SHORT;
 637        item->size = b & 3;
 638
 639        switch (item->size) {
 640        case 0:
 641                return start;
 642
 643        case 1:
 644                if ((end - start) < 1)
 645                        return NULL;
 646                item->data.u8 = *start++;
 647                return start;
 648
 649        case 2:
 650                if ((end - start) < 2)
 651                        return NULL;
 652                item->data.u16 = get_unaligned_le16(start);
 653                start = (__u8 *)((__le16 *)start + 1);
 654                return start;
 655
 656        case 3:
 657                item->size++;
 658                if ((end - start) < 4)
 659                        return NULL;
 660                item->data.u32 = get_unaligned_le32(start);
 661                start = (__u8 *)((__le32 *)start + 1);
 662                return start;
 663        }
 664
 665        return NULL;
 666}
 667
 668static void hid_scan_usage(struct hid_device *hid, u32 usage)
 669{
 670        if (usage == HID_DG_CONTACTID)
 671                hid->group = HID_GROUP_MULTITOUCH;
 672}
 673
 674/*
 675 * Scan a report descriptor before the device is added to the bus.
 676 * Sets device groups and other properties that determine what driver
 677 * to load.
 678 */
 679static int hid_scan_report(struct hid_device *hid)
 680{
 681        unsigned int page = 0, delim = 0;
 682        __u8 *start = hid->dev_rdesc;
 683        __u8 *end = start + hid->dev_rsize;
 684        unsigned int u, u_min = 0, u_max = 0;
 685        struct hid_item item;
 686
 687        hid->group = HID_GROUP_GENERIC;
 688        while ((start = fetch_item(start, end, &item)) != NULL) {
 689                if (item.format != HID_ITEM_FORMAT_SHORT)
 690                        return -EINVAL;
 691                if (item.type == HID_ITEM_TYPE_GLOBAL) {
 692                        if (item.tag == HID_GLOBAL_ITEM_TAG_USAGE_PAGE)
 693                                page = item_udata(&item) << 16;
 694                } else if (item.type == HID_ITEM_TYPE_LOCAL) {
 695                        if (delim > 1)
 696                                break;
 697                        u = item_udata(&item);
 698                        if (item.size <= 2)
 699                                u += page;
 700                        switch (item.tag) {
 701                        case HID_LOCAL_ITEM_TAG_DELIMITER:
 702                                delim += !!u;
 703                                break;
 704                        case HID_LOCAL_ITEM_TAG_USAGE:
 705                                hid_scan_usage(hid, u);
 706                                break;
 707                        case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
 708                                u_min = u;
 709                                break;
 710                        case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
 711                                u_max = u;
 712                                for (u = u_min; u <= u_max; u++)
 713                                        hid_scan_usage(hid, u);
 714                                break;
 715                        }
 716                }
 717        }
 718
 719        return 0;
 720}
 721
 722/**
 723 * hid_parse_report - parse device report
 724 *
 725 * @device: hid device
 726 * @start: report start
 727 * @size: report size
 728 *
 729 * Allocate the device report as read by the bus driver. This function should
 730 * only be called from parse() in ll drivers.
 731 */
 732int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size)
 733{
 734        hid->dev_rdesc = kmemdup(start, size, GFP_KERNEL);
 735        if (!hid->dev_rdesc)
 736                return -ENOMEM;
 737        hid->dev_rsize = size;
 738        return 0;
 739}
 740EXPORT_SYMBOL_GPL(hid_parse_report);
 741
 742/**
 743 * hid_open_report - open a driver-specific device report
 744 *
 745 * @device: hid device
 746 *
 747 * Parse a report description into a hid_device structure. Reports are
 748 * enumerated, fields are attached to these reports.
 749 * 0 returned on success, otherwise nonzero error value.
 750 *
 751 * This function (or the equivalent hid_parse() macro) should only be
 752 * called from probe() in drivers, before starting the device.
 753 */
 754int hid_open_report(struct hid_device *device)
 755{
 756        struct hid_parser *parser;
 757        struct hid_item item;
 758        unsigned int size;
 759        __u8 *start;
 760        __u8 *buf;
 761        __u8 *end;
 762        int ret;
 763        static int (*dispatch_type[])(struct hid_parser *parser,
 764                                      struct hid_item *item) = {
 765                hid_parser_main,
 766                hid_parser_global,
 767                hid_parser_local,
 768                hid_parser_reserved
 769        };
 770
 771        if (WARN_ON(device->status & HID_STAT_PARSED))
 772                return -EBUSY;
 773
 774        start = device->dev_rdesc;
 775        if (WARN_ON(!start))
 776                return -ENODEV;
 777        size = device->dev_rsize;
 778
 779        buf = kmemdup(start, size, GFP_KERNEL);
 780        if (buf == NULL)
 781                return -ENOMEM;
 782
 783        if (device->driver->report_fixup)
 784                start = device->driver->report_fixup(device, buf, &size);
 785        else
 786                start = buf;
 787
 788        start = kmemdup(start, size, GFP_KERNEL);
 789        kfree(buf);
 790        if (start == NULL)
 791                return -ENOMEM;
 792
 793        device->rdesc = start;
 794        device->rsize = size;
 795
 796        parser = vzalloc(sizeof(struct hid_parser));
 797        if (!parser) {
 798                ret = -ENOMEM;
 799                goto err;
 800        }
 801
 802        parser->device = device;
 803
 804        end = start + size;
 805
 806        device->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS,
 807                                     sizeof(struct hid_collection), GFP_KERNEL);
 808        if (!device->collection) {
 809                ret = -ENOMEM;
 810                goto err;
 811        }
 812        device->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
 813
 814        ret = -EINVAL;
 815        while ((start = fetch_item(start, end, &item)) != NULL) {
 816
 817                if (item.format != HID_ITEM_FORMAT_SHORT) {
 818                        hid_err(device, "unexpected long global item\n");
 819                        goto err;
 820                }
 821
 822                if (dispatch_type[item.type](parser, &item)) {
 823                        hid_err(device, "item %u %u %u %u parsing failed\n",
 824                                item.format, (unsigned)item.size,
 825                                (unsigned)item.type, (unsigned)item.tag);
 826                        goto err;
 827                }
 828
 829                if (start == end) {
 830                        if (parser->collection_stack_ptr) {
 831                                hid_err(device, "unbalanced collection at end of report description\n");
 832                                goto err;
 833                        }
 834                        if (parser->local.delimiter_depth) {
 835                                hid_err(device, "unbalanced delimiter at end of report description\n");
 836                                goto err;
 837                        }
 838                        vfree(parser);
 839                        device->status |= HID_STAT_PARSED;
 840                        return 0;
 841                }
 842        }
 843
 844        hid_err(device, "item fetching failed at offset %d\n", (int)(end - start));
 845err:
 846        vfree(parser);
 847        hid_close_report(device);
 848        return ret;
 849}
 850EXPORT_SYMBOL_GPL(hid_open_report);
 851
 852/*
 853 * Convert a signed n-bit integer to signed 32-bit integer. Common
 854 * cases are done through the compiler, the screwed things has to be
 855 * done by hand.
 856 */
 857
 858static s32 snto32(__u32 value, unsigned n)
 859{
 860        switch (n) {
 861        case 8:  return ((__s8)value);
 862        case 16: return ((__s16)value);
 863        case 32: return ((__s32)value);
 864        }
 865        return value & (1 << (n - 1)) ? value | (-1 << n) : value;
 866}
 867
 868/*
 869 * Convert a signed 32-bit integer to a signed n-bit integer.
 870 */
 871
 872static u32 s32ton(__s32 value, unsigned n)
 873{
 874        s32 a = value >> (n - 1);
 875        if (a && a != -1)
 876                return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
 877        return value & ((1 << n) - 1);
 878}
 879
 880/*
 881 * Extract/implement a data field from/to a little endian report (bit array).
 882 *
 883 * Code sort-of follows HID spec:
 884 *     http://www.usb.org/developers/devclass_docs/HID1_11.pdf
 885 *
 886 * While the USB HID spec allows unlimited length bit fields in "report
 887 * descriptors", most devices never use more than 16 bits.
 888 * One model of UPS is claimed to report "LINEV" as a 32-bit field.
 889 * Search linux-kernel and linux-usb-devel archives for "hid-core extract".
 890 */
 891
 892static __u32 extract(const struct hid_device *hid, __u8 *report,
 893                     unsigned offset, unsigned n)
 894{
 895        u64 x;
 896
 897        if (n > 32)
 898                hid_warn(hid, "extract() called with n (%d) > 32! (%s)\n",
 899                         n, current->comm);
 900
 901        report += offset >> 3;  /* adjust byte index */
 902        offset &= 7;            /* now only need bit offset into one byte */
 903        x = get_unaligned_le64(report);
 904        x = (x >> offset) & ((1ULL << n) - 1);  /* extract bit field */
 905        return (u32) x;
 906}
 907
 908/*
 909 * "implement" : set bits in a little endian bit stream.
 910 * Same concepts as "extract" (see comments above).
 911 * The data mangled in the bit stream remains in little endian
 912 * order the whole time. It make more sense to talk about
 913 * endianness of register values by considering a register
 914 * a "cached" copy of the little endiad bit stream.
 915 */
 916static void implement(const struct hid_device *hid, __u8 *report,
 917                      unsigned offset, unsigned n, __u32 value)
 918{
 919        u64 x;
 920        u64 m = (1ULL << n) - 1;
 921
 922        if (n > 32)
 923                hid_warn(hid, "%s() called with n (%d) > 32! (%s)\n",
 924                         __func__, n, current->comm);
 925
 926        if (value > m)
 927                hid_warn(hid, "%s() called with too large value %d! (%s)\n",
 928                         __func__, value, current->comm);
 929        WARN_ON(value > m);
 930        value &= m;
 931
 932        report += offset >> 3;
 933        offset &= 7;
 934
 935        x = get_unaligned_le64(report);
 936        x &= ~(m << offset);
 937        x |= ((u64)value) << offset;
 938        put_unaligned_le64(x, report);
 939}
 940
 941/*
 942 * Search an array for a value.
 943 */
 944
 945static int search(__s32 *array, __s32 value, unsigned n)
 946{
 947        while (n--) {
 948                if (*array++ == value)
 949                        return 0;
 950        }
 951        return -1;
 952}
 953
 954/**
 955 * hid_match_report - check if driver's raw_event should be called
 956 *
 957 * @hid: hid device
 958 * @report_type: type to match against
 959 *
 960 * compare hid->driver->report_table->report_type to report->type
 961 */
 962static int hid_match_report(struct hid_device *hid, struct hid_report *report)
 963{
 964        const struct hid_report_id *id = hid->driver->report_table;
 965
 966        if (!id) /* NULL means all */
 967                return 1;
 968
 969        for (; id->report_type != HID_TERMINATOR; id++)
 970                if (id->report_type == HID_ANY_ID ||
 971                                id->report_type == report->type)
 972                        return 1;
 973        return 0;
 974}
 975
 976/**
 977 * hid_match_usage - check if driver's event should be called
 978 *
 979 * @hid: hid device
 980 * @usage: usage to match against
 981 *
 982 * compare hid->driver->usage_table->usage_{type,code} to
 983 * usage->usage_{type,code}
 984 */
 985static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage)
 986{
 987        const struct hid_usage_id *id = hid->driver->usage_table;
 988
 989        if (!id) /* NULL means all */
 990                return 1;
 991
 992        for (; id->usage_type != HID_ANY_ID - 1; id++)
 993                if ((id->usage_hid == HID_ANY_ID ||
 994                                id->usage_hid == usage->hid) &&
 995                                (id->usage_type == HID_ANY_ID ||
 996                                id->usage_type == usage->type) &&
 997                                (id->usage_code == HID_ANY_ID ||
 998                                 id->usage_code == usage->code))
 999                        return 1;
1000        return 0;

1001}
1002
1003static void hid_process_event(struct hid_device *hid, struct hid_field *field,
1004                struct hid_usage *usage, __s32 value, int interrupt)
1005{
1006        struct hid_driver *hdrv = hid->driver;
1007        int ret;
1008
1009        if (!list_empty(&hid->debug_list))
1010                hid_dump_input(hid, usage, value);
1011
1012        if (hdrv && hdrv->event && hid_match_usage(hid, usage)) {
1013                ret = hdrv->event(hid, field, usage, value);
1014                if (ret != 0) {
1015                        if (ret < 0)
1016                                hid_err(hid, "%s's event failed with %d\n",
1017                                                hdrv->name, ret);
1018                        return;
1019                }
1020        }
1021
1022        if (hid->claimed & HID_CLAIMED_INPUT)
1023                hidinput_hid_event(hid, field, usage, value);
1024        if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event)
1025                hid->hiddev_hid_event(hid, field, usage, value);
1026}
1027
1028/*
1029 * Analyse a received field, and fetch the data from it. The field
1030 * content is stored for next report processing (we do differential
1031 * reporting to the layer).
1032 */
1033
1034static void hid_input_field(struct hid_device *hid, struct hid_field *field,
1035                            __u8 *data, int interrupt)
1036{
1037        unsigned n;
1038        unsigned count = field->report_count;
1039        unsigned offset = field->report_offset;
1040        unsigned size = field->report_size;
1041        __s32 min = field->logical_minimum;
1042        __s32 max = field->logical_maximum;
1043        __s32 *value;
1044
1045        value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC);
1046        if (!value)
1047                return;
1048
1049        for (n = 0; n < count; n++) {
1050
1051                value[n] = min < 0 ?
1052                        snto32(extract(hid, data, offset + n * size, size),
1053                               size) :
1054                        extract(hid, data, offset + n * size, size);
1055
1056                /* Ignore report if ErrorRollOver */
1057                if (!(field->flags & HID_MAIN_ITEM_VARIABLE) &&
1058                    value[n] >= min && value[n] <= max &&
1059                    field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
1060                        goto exit;
1061        }
1062
1063        for (n = 0; n < count; n++) {
1064
1065                if (HID_MAIN_ITEM_VARIABLE & field->flags) {
1066                        hid_process_event(hid, field, &field->usage[n], value[n], interrupt);
1067                        continue;
1068                }
1069
1070                if (field->value[n] >= min && field->value[n] <= max
1071                        && field->usage[field->value[n] - min].hid
1072                        && search(value, field->value[n], count))
1073                                hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt);
1074
1075                if (value[n] >= min && value[n] <= max
1076                        && field->usage[value[n] - min].hid
1077                        && search(field->value, value[n], count))
1078                                hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt);
1079        }
1080
1081        memcpy(field->value, value, count * sizeof(__s32));
1082exit:
1083        kfree(value);
1084}
1085
1086/*
1087 * Output the field into the report.
1088 */
1089
1090static void hid_output_field(const struct hid_device *hid,
1091                             struct hid_field *field, __u8 *data)
1092{
1093        unsigned count = field->report_count;
1094        unsigned offset = field->report_offset;
1095        unsigned size = field->report_size;
1096        unsigned n;
1097
1098        for (n = 0; n < count; n++) {
1099                if (field->logical_minimum < 0) /* signed values */
1100                        implement(hid, data, offset + n * size, size,
1101                                  s32ton(field->value[n], size));
1102                else                            /* unsigned values */
1103                        implement(hid, data, offset + n * size, size,
1104                                  field->value[n]);
1105        }
1106}
1107
1108/*
1109 * Create a report.
1110 */
1111
1112void hid_output_report(struct hid_report *report, __u8 *data)
1113{
1114        unsigned n;
1115
1116        if (report->id > 0)
1117                *data++ = report->id;
1118
1119        memset(data, 0, ((report->size - 1) >> 3) + 1);
1120        for (n = 0; n < report->maxfield; n++)
1121                hid_output_field(report->device, report->field[n], data);
1122}
1123EXPORT_SYMBOL_GPL(hid_output_report);
1124
1125/*
1126 * Set a field value. The report this field belongs to has to be
1127 * created and transferred to the device, to set this value in the
1128 * device.
1129 */
1130
1131int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
1132{
1133        unsigned size = field->report_size;
1134
1135        hid_dump_input(field->report->device, field->usage + offset, value);
1136
1137        if (offset >= field->report_count) {
1138                hid_err(field->report->device, "offset (%d) exceeds report_count (%d)\n",
1139                                offset, field->report_count);
1140                return -1;
1141        }
1142        if (field->logical_minimum < 0) {
1143                if (value != snto32(s32ton(value, size), size)) {
1144                        hid_err(field->report->device, "value %d is out of range\n", value);
1145                        return -1;
1146                }
1147        }
1148        field->value[offset] = value;
1149        return 0;
1150}
1151EXPORT_SYMBOL_GPL(hid_set_field);
1152
1153static struct hid_report *hid_get_report(struct hid_report_enum *report_enum,
1154                const u8 *data)
1155{
1156        struct hid_report *report;
1157        unsigned int n = 0;     /* Normally report number is 0 */
1158
1159        /* Device uses numbered reports, data[0] is report number */
1160        if (report_enum->numbered)
1161                n = *data;
1162
1163        report = report_enum->report_id_hash[n];
1164        if (report == NULL)
1165                dbg_hid("undefined report_id %u received\n", n);
1166
1167        return report;
1168}
1169
1170int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
1171                int interrupt)
1172{
1173        struct hid_report_enum *report_enum = hid->report_enum + type;
1174        struct hid_report *report;
1175        unsigned int a;
1176        int rsize, csize = size;
1177        u8 *cdata = data;
1178        int ret = 0;
1179
1180        report = hid_get_report(report_enum, data);
1181        if (!report)
1182                goto out;
1183
1184        if (report_enum->numbered) {
1185                cdata++;
1186                csize--;
1187        }
1188
1189        rsize = ((report->size - 1) >> 3) + 1;
1190
1191        if (rsize > HID_MAX_BUFFER_SIZE)
1192                rsize = HID_MAX_BUFFER_SIZE;
1193
1194        if (csize < rsize) {
1195                dbg_hid("report %d is too short, (%d < %d)\n", report->id,
1196                                csize, rsize);
1197                memset(cdata + csize, 0, rsize - csize);
1198        }
1199
1200        if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event)
1201                hid->hiddev_report_event(hid, report);
1202        if (hid->claimed & HID_CLAIMED_HIDRAW) {
1203                ret = hidraw_report_event(hid, data, size);
1204                if (ret)
1205                        goto out;
1206        }
1207
1208        if (hid->claimed != HID_CLAIMED_HIDRAW) {
1209                for (a = 0; a < report->maxfield; a++)
1210                        hid_input_field(hid, report->field[a], cdata, interrupt);
1211        }
1212
1213        if (hid->claimed & HID_CLAIMED_INPUT)
1214                hidinput_report_event(hid, report);
1215out:
1216        return ret;
1217}
1218EXPORT_SYMBOL_GPL(hid_report_raw_event);
1219
1220/**
1221 * hid_input_report - report data from lower layer (usb, bt...)
1222 *
1223 * @hid: hid device
1224 * @type: HID report type (HID_*_REPORT)
1225 * @data: report contents
1226 * @size: size of data parameter
1227 * @interrupt: distinguish between interrupt and control transfers
1228 *
1229 * This is data entry for lower layers.
1230 */
1231int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt)
1232{
1233        struct hid_report_enum *report_enum;
1234        struct hid_driver *hdrv;
1235        struct hid_report *report;
1236        char *buf;
1237        unsigned int i;
1238        int ret = 0;
1239
1240        if (!hid)
1241                return -ENODEV;
1242
1243        if (down_trylock(&hid->driver_lock))
1244                return -EBUSY;
1245
1246        if (!hid->driver) {
1247                ret = -ENODEV;
1248                goto unlock;
1249        }
1250        report_enum = hid->report_enum + type;
1251        hdrv = hid->driver;
1252
1253        if (!size) {
1254                dbg_hid("empty report\n");
1255                ret = -1;
1256                goto unlock;
1257        }
1258
1259        /* Avoid unnecessary overhead if debugfs is disabled */
1260        if (list_empty(&hid->debug_list))
1261                goto nomem;
1262
1263        buf = kmalloc(sizeof(char) * HID_DEBUG_BUFSIZE, GFP_ATOMIC);
1264
1265        if (!buf)
1266                goto nomem;
1267
1268        /* dump the report */
1269        snprintf(buf, HID_DEBUG_BUFSIZE - 1,
1270                        "\nreport (size %u) (%snumbered) = ", size, report_enum->numbered ? "" : "un");
1271        hid_debug_event(hid, buf);
1272
1273        for (i = 0; i < size; i++) {
1274                snprintf(buf, HID_DEBUG_BUFSIZE - 1,
1275                                " %02x", data[i]);
1276                hid_debug_event(hid, buf);
1277        }
1278        hid_debug_event(hid, "\n");
1279        kfree(buf);
1280
1281nomem:
1282        report = hid_get_report(report_enum, data);
1283
1284        if (!report) {
1285                ret = -1;
1286                goto unlock;
1287        }
1288
1289        if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) {
1290                ret = hdrv->raw_event(hid, report, data, size);
1291                if (ret != 0) {
1292                        ret = ret < 0 ? ret : 0;
1293                        goto unlock;
1294                }
1295        }
1296
1297        ret = hid_report_raw_event(hid, type, data, size, interrupt);
1298
1299unlock:
1300        up(&hid->driver_lock);
1301        return ret;
1302}
1303EXPORT_SYMBOL_GPL(hid_input_report);
1304
1305static bool hid_match_one_id(struct hid_device *hdev,
1306                const struct hid_device_id *id)
1307{
1308        return (id->bus == HID_BUS_ANY || id->bus == hdev->bus) &&
1309                (id->group == HID_GROUP_ANY || id->group == hdev->group) &&
1310                (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) &&
1311                (id->product == HID_ANY_ID || id->product == hdev->product);
1312}
1313
1314const struct hid_device_id *hid_match_id(struct hid_device *hdev,
1315                const struct hid_device_id *id)
1316{
1317        for (; id->bus; id++)
1318                if (hid_match_one_id(hdev, id))
1319                        return id;
1320
1321        return NULL;
1322}
1323
1324static const struct hid_device_id hid_hiddev_list[] = {
1325        { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) },
1326        { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) },
1327        { }
1328};
1329
1330static bool hid_hiddev(struct hid_device *hdev)
1331{
1332        return !!hid_match_id(hdev, hid_hiddev_list);
1333}
1334
1335
1336static ssize_t
1337read_report_descriptor(struct file *filp, struct kobject *kobj,
1338                struct bin_attribute *attr,
1339                char *buf, loff_t off, size_t count)
1340{
1341        struct device *dev = container_of(kobj, struct device, kobj);
1342        struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1343
1344        if (off >= hdev->rsize)
1345                return 0;
1346
1347        if (off + count > hdev->rsize)
1348                count = hdev->rsize - off;
1349
1350        memcpy(buf, hdev->rdesc + off, count);
1351
1352        return count;
1353}
1354
1355static struct bin_attribute dev_bin_attr_report_desc = {
1356        .attr = { .name = "report_descriptor", .mode = 0444 },
1357        .read = read_report_descriptor,
1358        .size = HID_MAX_DESCRIPTOR_SIZE,
1359};
1360
1361int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
1362{
1363        static const char *types[] = { "Device", "Pointer", "Mouse", "Device",
1364                "Joystick", "Gamepad", "Keyboard", "Keypad",
1365                "Multi-Axis Controller"
1366        };
1367        const char *type, *bus;
1368        char buf[64];
1369        unsigned int i;
1370        int len;
1371        int ret;
1372
1373        if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE)
1374                connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV);
1375        if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE)
1376                connect_mask |= HID_CONNECT_HIDINPUT_FORCE;
1377        if (hdev->bus != BUS_USB)
1378                connect_mask &= ~HID_CONNECT_HIDDEV;
1379        if (hid_hiddev(hdev))
1380                connect_mask |= HID_CONNECT_HIDDEV_FORCE;
1381
1382        if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,
1383                                connect_mask & HID_CONNECT_HIDINPUT_FORCE))
1384                hdev->claimed |= HID_CLAIMED_INPUT;
1385
1386        if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect &&
1387                        !hdev->hiddev_connect(hdev,
1388                                connect_mask & HID_CONNECT_HIDDEV_FORCE))
1389                hdev->claimed |= HID_CLAIMED_HIDDEV;
1390        if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev))
1391                hdev->claimed |= HID_CLAIMED_HIDRAW;
1392
1393        /* Drivers with the ->raw_event callback set are not required to connect
1394         * to any other listener. */
1395        if (!hdev->claimed && !hdev->driver->raw_event) {
1396                hid_err(hdev, "device has no listeners, quitting\n");
1397                return -ENODEV;
1398        }
1399
1400        if ((hdev->claimed & HID_CLAIMED_INPUT) &&
1401                        (connect_mask & HID_CONNECT_FF) && hdev->ff_init)
1402                hdev->ff_init(hdev);
1403
1404        len = 0;
1405        if (hdev->claimed & HID_CLAIMED_INPUT)
1406                len += sprintf(buf + len, "input");
1407        if (hdev->claimed & HID_CLAIMED_HIDDEV)
1408                len += sprintf(buf + len, "%shiddev%d", len ? "," : "",
1409                                hdev->minor);
1410        if (hdev->claimed & HID_CLAIMED_HIDRAW)
1411                len += sprintf(buf + len, "%shidraw%d", len ? "," : "",
1412                                ((struct hidraw *)hdev->hidraw)->minor);
1413
1414        type = "Device";
1415        for (i = 0; i < hdev->maxcollection; i++) {
1416                struct hid_collection *col = &hdev->collection[i];
1417                if (col->type == HID_COLLECTION_APPLICATION &&
1418                   (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
1419                   (col->usage & 0xffff) < ARRAY_SIZE(types)) {
1420                        type = types[col->usage & 0xffff];
1421                        break;
1422                }
1423        }
1424
1425        switch (hdev->bus) {
1426        case BUS_USB:
1427                bus = "USB";
1428                break;
1429        case BUS_BLUETOOTH:
1430                bus = "BLUETOOTH";
1431                break;
1432        default:
1433                bus = "<UNKNOWN>";
1434        }
1435
1436        ret = device_create_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1437        if (ret)
1438                hid_warn(hdev,
1439                         "can't create sysfs report descriptor attribute err: %d\n", ret);
1440
1441        hid_info(hdev, "%s: %s HID v%x.%02x %s [%s] on %s\n",
1442                 buf, bus, hdev->version >> 8, hdev->version & 0xff,
1443                 type, hdev->name, hdev->phys);
1444
1445        return 0;
1446}
1447EXPORT_SYMBOL_GPL(hid_connect);
1448
1449void hid_disconnect(struct hid_device *hdev)
1450{
1451        device_remove_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1452        if (hdev->claimed & HID_CLAIMED_INPUT)
1453                hidinput_disconnect(hdev);
1454        if (hdev->claimed & HID_CLAIMED_HIDDEV)
1455                hdev->hiddev_disconnect(hdev);
1456        if (hdev->claimed & HID_CLAIMED_HIDRAW)
1457                hidraw_disconnect(hdev);
1458}
1459EXPORT_SYMBOL_GPL(hid_disconnect);
1460
1461/* a list of devices for which there is a specialized driver on HID bus */
1462static const struct hid_device_id hid_have_special_driver[] = {
1463        { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
1464        { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
1465        { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) },
1466        { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) },
1467        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ATV_IRCONTROL) },
1468        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
1469        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
1470        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
1471        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) },
1472        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1473        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1474        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1475        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1476        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1477        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1478        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1479        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1480        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1481        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1482        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1483        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) },
1484        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) },
1485        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) },
1486        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) },
1487        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) },
1488        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) },
1489        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1490        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1491        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
1492        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) },
1493        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) },
1494        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) },
1495        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1496        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1497        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1498        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1499        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1500        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
1501        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1502        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1503        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
1504        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
1505        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
1506        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
1507        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
1508        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
1509        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
1510        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
1511        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
1512        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
1513        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
1514        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
1515        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
1516        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ANSI) },
1517        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ISO) },
1518        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_JIS) },
1519        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
1520        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
1521        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
1522        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
1523        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
1524        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
1525        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
1526        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
1527        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
1528        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) },
1529        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) },
1530        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) },
1531        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO) },
1532        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1533        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1534        { HID_USB_DEVICE(USB_VENDOR_ID_AUREAL, USB_DEVICE_ID_AUREAL_W01RN) },
1535        { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
1536        { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
1537        { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
1538        { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
1539        { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
1540        { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
1541        { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS) },
1542        { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) },
1543        { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_AK1D) },
1544        { HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) },
1545        { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) },
1546        { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) },
1547        { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) },
1548        { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_4) },
1549        { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
1550        { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
1551        { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011) },
1552        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
1553        { HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) },
1554        { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
1555        { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) },
1556        { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) },
1557        { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) },
1558        { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) },
1559        { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
1560        { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
1561        { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
1562        { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) },
1563        { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) },
1564        { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
1565        { HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) },
1566        { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
1567        { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_I405X) },
1568        { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X) },
1569        { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X) },
1570        { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
1571        { HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) },
1572#if IS_ENABLED(CONFIG_HID_LENOVO_TPKBD)
1573        { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) },
1574#endif
1575        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
1576        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
1577        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) },
1578        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) },
1579        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) },
1580        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) },
1581        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) },
1582        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) },
1583        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) },
1584        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) },
1585        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) },
1586        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) },
1587        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
1588        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },
1589        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
1590        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) },
1591        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
1592        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) },
1593        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
1594        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
1595        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFP_WHEEL) },
1596        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFGT_WHEEL) },
1597        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
1598        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G27_WHEEL) },
1599#if IS_ENABLED(CONFIG_HID_LOGITECH_DJ)
1600        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER) },
1601        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2) },
1602#endif
1603        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) },
1604        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) },
1605        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) },
1606        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) },
1607        { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
1608        { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
1609        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500) },
1610        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) },
1611        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) },
1612        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) },
1613        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) },
1614        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K) },
1615        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
1616        { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
1617        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
1618        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) },
1619        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) },
1620        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) },
1621        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) },
1622        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) },
1623        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) },
1624        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) },
1625        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) },
1626        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) },
1627        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) },
1628        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) },
1629        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) },
1630        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) },
1631        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) },
1632        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) },
1633        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) },
1634        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) },
1635        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) },
1636        { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) },
1637        { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
1638        { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
1639        { HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_KEYBOARD) },
1640        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
1641        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) },
1642        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
1643        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
1644        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
1645        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
1646        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) },
1647        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_SAVU) },
1648        { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000) },
1649        { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
1650        { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
1651        { HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
1652        { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1653        { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER) },
1654        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1655        { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
1656        { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
1657        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
1658        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
1659        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) },
1660        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) },
1661        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
1662        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) },
1663        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
1664        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) },
1665        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) },
1666        { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) },
1667        { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
1668        { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
1669        { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
1670        { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
1671        { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
1672        { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
1673        { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
1674        { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP1062) },
1675        { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_WIRELESS_TABLET_TWHL850) },
1676        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
1677        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SUPER_JOY_BOX_3) },
1678        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD) },
1679        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO) },
1680        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO) },
1681        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO) },
1682        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
1683        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) },
1684        { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
1685        { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
1686        { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_Q_PAD) },
1687        { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_PID_0038) },
1688        { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
1689        { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
1690        { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET) },
1691        { HID_USB_DEVICE(USB_VENDOR_ID_X_TENSIONS, USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE) },
1692        { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
1693        { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
1694        { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
1695
1696        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
1697        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) },
1698        { }
1699};
1700
1701struct hid_dynid {
1702        struct list_head list;
1703        struct hid_device_id id;
1704};
1705
1706/**
1707 * store_new_id - add a new HID device ID to this driver and re-probe devices
1708 * @driver: target device driver
1709 * @buf: buffer for scanning device ID data
1710 * @count: input size
1711 *
1712 * Adds a new dynamic hid device ID to this driver,
1713 * and causes the driver to probe for all devices again.
1714 */
1715static ssize_t store_new_id(struct device_driver *drv, const char *buf,
1716                size_t count)
1717{
1718        struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1719        struct hid_dynid *dynid;
1720        __u32 bus, vendor, product;
1721        unsigned long driver_data = 0;
1722        int ret;
1723
1724        ret = sscanf(buf, "%x %x %x %lx",
1725                        &bus, &vendor, &product, &driver_data);
1726        if (ret < 3)
1727                return -EINVAL;
1728
1729        dynid = kzalloc(sizeof(*dynid), GFP_KERNEL);
1730        if (!dynid)
1731                return -ENOMEM;
1732
1733        dynid->id.bus = bus;
1734        dynid->id.group = HID_GROUP_ANY;
1735        dynid->id.vendor = vendor;
1736        dynid->id.product = product;
1737        dynid->id.driver_data = driver_data;
1738
1739        spin_lock(&hdrv->dyn_lock);
1740        list_add_tail(&dynid->list, &hdrv->dyn_list);
1741        spin_unlock(&hdrv->dyn_lock);
1742
1743        ret = driver_attach(&hdrv->driver);
1744
1745        return ret ? : count;
1746}
1747static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
1748
1749static void hid_free_dynids(struct hid_driver *hdrv)
1750{
1751        struct hid_dynid *dynid, *n;
1752
1753        spin_lock(&hdrv->dyn_lock);
1754        list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) {
1755                list_del(&dynid->list);
1756                kfree(dynid);
1757        }
1758        spin_unlock(&hdrv->dyn_lock);
1759}
1760
1761static const struct hid_device_id *hid_match_device(struct hid_device *hdev,
1762                struct hid_driver *hdrv)
1763{
1764        struct hid_dynid *dynid;
1765
1766        spin_lock(&hdrv->dyn_lock);
1767        list_for_each_entry(dynid, &hdrv->dyn_list, list) {
1768                if (hid_match_one_id(hdev, &dynid->id)) {
1769                        spin_unlock(&hdrv->dyn_lock);
1770                        return &dynid->id;
1771                }
1772        }
1773        spin_unlock(&hdrv->dyn_lock);
1774
1775        return hid_match_id(hdev, hdrv->id_table);
1776}
1777
1778static int hid_bus_match(struct device *dev, struct device_driver *drv)
1779{
1780        struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1781        struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1782
1783        return hid_match_device(hdev, hdrv) != NULL;
1784}
1785
1786static int hid_device_probe(struct device *dev)
1787{
1788        struct hid_driver *hdrv = container_of(dev->driver,
1789                        struct hid_driver, driver);
1790        struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1791        const struct hid_device_id *id;
1792        int ret = 0;
1793
1794        if (down_interruptible(&hdev->driver_lock))
1795                return -EINTR;
1796
1797        if (!hdev->driver) {
1798                id = hid_match_device(hdev, hdrv);
1799                if (id == NULL) {
1800                        ret = -ENODEV;
1801                        goto unlock;
1802                }
1803
1804                hdev->driver = hdrv;
1805                if (hdrv->probe) {
1806                        ret = hdrv->probe(hdev, id);
1807                } else { /* default probe */
1808                        ret = hid_open_report(hdev);
1809                        if (!ret)
1810                                ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
1811                }
1812                if (ret) {
1813                        hid_close_report(hdev);
1814                        hdev->driver = NULL;
1815                }
1816        }
1817unlock:
1818        up(&hdev->driver_lock);
1819        return ret;
1820}
1821
1822static int hid_device_remove(struct device *dev)
1823{
1824        struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1825        struct hid_driver *hdrv;
1826
1827        if (down_interruptible(&hdev->driver_lock))
1828                return -EINTR;
1829
1830        hdrv = hdev->driver;
1831        if (hdrv) {
1832                if (hdrv->remove)
1833                        hdrv->remove(hdev);
1834                else /* default remove */
1835                        hid_hw_stop(hdev);
1836                hid_close_report(hdev);
1837                hdev->driver = NULL;
1838        }
1839
1840        up(&hdev->driver_lock);
1841        return 0;
1842}
1843
1844static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
1845                             char *buf)
1846{
1847        struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1848        int len;
1849
1850        len = snprintf(buf, PAGE_SIZE, "hid:b%04Xg%04Xv%08Xp%08X\n",
1851                       hdev->bus, hdev->group, hdev->vendor, hdev->product);
1852
1853        return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
1854}
1855
1856static struct device_attribute hid_dev_attrs[] = {
1857        __ATTR_RO(modalias),
1858        __ATTR_NULL,
1859};
1860
1861static int hid_uevent(struct device *dev, struct kobj_uevent_env *env)
1862{
1863        struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1864
1865        if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X",
1866                        hdev->bus, hdev->vendor, hdev->product))
1867                return -ENOMEM;
1868
1869        if (add_uevent_var(env, "HID_NAME=%s", hdev->name))
1870                return -ENOMEM;
1871
1872        if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys))
1873                return -ENOMEM;
1874
1875        if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq))
1876                return -ENOMEM;
1877
1878        if (add_uevent_var(env, "MODALIAS=hid:b%04Xg%04Xv%08Xp%08X",
1879                           hdev->bus, hdev->group, hdev->vendor, hdev->product))
1880                return -ENOMEM;
1881
1882        return 0;
1883}
1884
1885static struct bus_type hid_bus_type = {
1886        .name           = "hid",
1887        .dev_attrs      = hid_dev_attrs,
1888        .match          = hid_bus_match,
1889        .probe          = hid_device_probe,
1890        .remove         = hid_device_remove,
1891        .uevent         = hid_uevent,
1892};
1893
1894/* a list of devices that shouldn't be handled by HID core at all */
1895static const struct hid_device_id hid_ignore_list[] = {
1896        { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) },
1897        { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) },
1898        { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) },
1899        { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) },
1900        { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) },
1901        { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) },
1902        { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) },
1903        { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) },
1904        { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) },
1905        { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) },
1906        { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) },
1907        { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) },
1908        { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)},
1909        { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)},
1910        { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) },
1911        { HID_USB_DEVICE(USB_VENDOR_ID_AXENTIA, USB_DEVICE_ID_AXENTIA_FM_RADIO) },
1912        { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) },
1913        { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) },
1914        { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) },
1915        { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) },
1916        { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) },
1917        { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) },
1918        { HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) },
1919        { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) },
1920        { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
1921        { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x0004) },
1922        { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x000a) },
1923        { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
1924        { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
1925        { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
1926        { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) },
1927        { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) },
1928        { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) },
1929        { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) },
1930        { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) },
1931        { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) },
1932        { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) },
1933        { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) },
1934        { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) },
1935        { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) },
1936        { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) },
1937        { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) },
1938        { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) },
1939        { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) },
1940        { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) },
1941        { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) },
1942        { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) },
1943        { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_RADIOSHARK) },
1944        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) },
1945        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) },
1946        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) },
1947        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) },
1948        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) },
1949        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) },
1950        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) },
1951        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) },
1952        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) },
1953        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) },
1954        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) },
1955        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) },
1956        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) },
1957        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) },
1958        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) },
1959        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) },
1960        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) },
1961        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) },
1962        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) },
1963        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) },
1964        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) },
1965        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) },
1966        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) },
1967        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) },
1968        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) },
1969        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) },
1970        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) },
1971        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) },
1972        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) },
1973        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) },
1974        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) },
1975        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) },
1976        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) },
1977        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) },
1978        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) },
1979        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) },
1980        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) },
1981        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) },
1982        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) },
1983        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) },
1984        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) },
1985        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) },
1986        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) },
1987        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) },
1988        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) },
1989        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) },
1990        { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) },
1991        { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) },
1992        { HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) },
1993        { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) },
1994        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) },
1995        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) },
1996        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY2) },
1997        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) },
1998        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY2) },
1999        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) },
2000        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY2) },

2001        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYVOLTAGE) },
2002        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYCURRENT) },
2003        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTIME) },
2004        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTEMPERATURE) },
2005        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYPH) },
2006        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) },
2007        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) },
2008        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) },
2009        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIC) },
2010        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIB) },
2011        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY) },
2012        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) },
2013        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) },
2014        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOTOR) },
2015        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) },
2016        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) },
2017        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) },
2018        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) },
2019        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) },
2020        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER) },
2021        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER2) },
2022        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_ABSESP) },
2023        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_AUTODATABUS) },
2024        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MCT) },
2025        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HYBRID) },
2026        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HEATCONTROL) },
2027        { HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_BEATPAD) },
2028        { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) },
2029        { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) },
2030        { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) },
2031        { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) },
2032        { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) },
2033        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) },
2034        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) },
2035        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) },
2036        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) },
2037        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) },
2038        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) },
2039        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) },
2040        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) },
2041        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) },
2042        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) },
2043        { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) },
2044        { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) },
2045        { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) },
2046        { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
2047        { HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
2048        { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
2049#if defined(CONFIG_MOUSE_SYNAPTICS_USB) || defined(CONFIG_MOUSE_SYNAPTICS_USB_MODULE)
2050        { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_TP) },
2051        { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_INT_TP) },
2052        { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_CPAD) },
2053        { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_STICK) },
2054        { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WP) },
2055        { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_COMP_TP) },
2056        { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WTP) },
2057        { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_DPAD) },
2058#endif
2059        { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) },
2060        { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
2061        { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },
2062        { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) },
2063        { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) },
2064        { HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) },
2065        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) },
2066        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) },
2067        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) },
2068        { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) },
2069        { }
2070};
2071
2072/**
2073 * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer
2074 *
2075 * There are composite devices for which we want to ignore only a certain
2076 * interface. This is a list of devices for which only the mouse interface will
2077 * be ignored. This allows a dedicated driver to take care of the interface.
2078 */
2079static const struct hid_device_id hid_mouse_ignore_list[] = {
2080        /* appletouch driver */
2081        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
2082        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
2083        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
2084        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
2085        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
2086        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
2087        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
2088        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
2089        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
2090        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
2091        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
2092        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
2093        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
2094        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
2095        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
2096        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
2097        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
2098        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
2099        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
2100        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
2101        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
2102        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
2103        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
2104        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
2105        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
2106        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
2107        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
2108        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
2109        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
2110        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
2111        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
2112        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
2113        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
2114        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
2115        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
2116        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
2117        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
2118        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
2119        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
2120        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
2121        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
2122        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
2123        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
2124        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
2125        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
2126        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
2127        { }
2128};
2129
2130static bool hid_ignore(struct hid_device *hdev)
2131{
2132        switch (hdev->vendor) {
2133        case USB_VENDOR_ID_CODEMERCS:
2134                /* ignore all Code Mercenaries IOWarrior devices */
2135                if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST &&
2136                                hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST)
2137                        return true;
2138                break;
2139        case USB_VENDOR_ID_LOGITECH:
2140                if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST &&
2141                                hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST)
2142                        return true;
2143                /*
2144                 * The Keene FM transmitter USB device has the same USB ID as
2145                 * the Logitech AudioHub Speaker, but it should ignore the hid.
2146                 * Check if the name is that of the Keene device.
2147                 * For reference: the name of the AudioHub is
2148                 * "HOLTEK  AudioHub Speaker".
2149                 */
2150                if (hdev->product == USB_DEVICE_ID_LOGITECH_AUDIOHUB &&
2151                        !strcmp(hdev->name, "HOLTEK  B-LINK USB Audio  "))
2152                                return true;
2153                break;
2154        case USB_VENDOR_ID_SOUNDGRAPH:
2155                if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST &&
2156                    hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST)
2157                        return true;
2158                break;
2159        case USB_VENDOR_ID_HANWANG:
2160                if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST &&
2161                    hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST)
2162                        return true;
2163                break;
2164        case USB_VENDOR_ID_JESS:
2165                if (hdev->product == USB_DEVICE_ID_JESS_YUREX &&
2166                                hdev->type == HID_TYPE_USBNONE)
2167                        return true;
2168        break;
2169        }
2170
2171        if (hdev->type == HID_TYPE_USBMOUSE &&
2172                        hid_match_id(hdev, hid_mouse_ignore_list))
2173                return true;
2174
2175        return !!hid_match_id(hdev, hid_ignore_list);
2176}
2177
2178int hid_add_device(struct hid_device *hdev)
2179{
2180        static atomic_t id = ATOMIC_INIT(0);
2181        int ret;
2182
2183        if (WARN_ON(hdev->status & HID_STAT_ADDED))
2184                return -EBUSY;
2185
2186        /* we need to kill them here, otherwise they will stay allocated to
2187         * wait for coming driver */
2188        if (!(hdev->quirks & HID_QUIRK_NO_IGNORE)
2189            && (hid_ignore(hdev) || (hdev->quirks & HID_QUIRK_IGNORE)))
2190                return -ENODEV;
2191
2192        /*
2193         * Read the device report descriptor once and use as template
2194         * for the driver-specific modifications.
2195         */
2196        ret = hdev->ll_driver->parse(hdev);
2197        if (ret)
2198                return ret;
2199        if (!hdev->dev_rdesc)
2200                return -ENODEV;
2201
2202        /*
2203         * Scan generic devices for group information
2204         */
2205        if (hid_ignore_special_drivers ||
2206            !hid_match_id(hdev, hid_have_special_driver)) {
2207                ret = hid_scan_report(hdev);
2208                if (ret)
2209                        hid_warn(hdev, "bad device descriptor (%d)\n", ret);
2210        }
2211
2212        /* XXX hack, any other cleaner solution after the driver core
2213         * is converted to allow more than 20 bytes as the device name? */
2214        dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
2215                     hdev->vendor, hdev->product, atomic_inc_return(&id));
2216
2217        hid_debug_register(hdev, dev_name(&hdev->dev));
2218        ret = device_add(&hdev->dev);
2219        if (!ret)
2220                hdev->status |= HID_STAT_ADDED;
2221        else
2222                hid_debug_unregister(hdev);
2223
2224        return ret;
2225}
2226EXPORT_SYMBOL_GPL(hid_add_device);
2227
2228/**
2229 * hid_allocate_device - allocate new hid device descriptor
2230 *
2231 * Allocate and initialize hid device, so that hid_destroy_device might be
2232 * used to free it.
2233 *
2234 * New hid_device pointer is returned on success, otherwise ERR_PTR encoded
2235 * error value.
2236 */
2237struct hid_device *hid_allocate_device(void)
2238{
2239        struct hid_device *hdev;
2240        int ret = -ENOMEM;
2241
2242        hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
2243        if (hdev == NULL)
2244                return ERR_PTR(ret);
2245
2246        device_initialize(&hdev->dev);
2247        hdev->dev.release = hid_device_release;
2248        hdev->dev.bus = &hid_bus_type;
2249
2250        hid_close_report(hdev);
2251
2252        init_waitqueue_head(&hdev->debug_wait);
2253        INIT_LIST_HEAD(&hdev->debug_list);
2254        sema_init(&hdev->driver_lock, 1);
2255
2256        return hdev;
2257}
2258EXPORT_SYMBOL_GPL(hid_allocate_device);
2259
2260static void hid_remove_device(struct hid_device *hdev)
2261{
2262        if (hdev->status & HID_STAT_ADDED) {
2263                device_del(&hdev->dev);
2264                hid_debug_unregister(hdev);
2265                hdev->status &= ~HID_STAT_ADDED;
2266        }
2267        kfree(hdev->dev_rdesc);
2268        hdev->dev_rdesc = NULL;
2269        hdev->dev_rsize = 0;
2270}
2271
2272/**
2273 * hid_destroy_device - free previously allocated device
2274 *
2275 * @hdev: hid device
2276 *
2277 * If you allocate hid_device through hid_allocate_device, you should ever
2278 * free by this function.
2279 */
2280void hid_destroy_device(struct hid_device *hdev)
2281{
2282        hid_remove_device(hdev);
2283        put_device(&hdev->dev);
2284}
2285EXPORT_SYMBOL_GPL(hid_destroy_device);
2286
2287int __hid_register_driver(struct hid_driver *hdrv, struct module *owner,
2288                const char *mod_name)
2289{
2290        int ret;
2291
2292        hdrv->driver.name = hdrv->name;
2293        hdrv->driver.bus = &hid_bus_type;
2294        hdrv->driver.owner = owner;
2295        hdrv->driver.mod_name = mod_name;
2296
2297        INIT_LIST_HEAD(&hdrv->dyn_list);
2298        spin_lock_init(&hdrv->dyn_lock);
2299
2300        ret = driver_register(&hdrv->driver);
2301        if (ret)
2302                return ret;
2303
2304        ret = driver_create_file(&hdrv->driver, &driver_attr_new_id);
2305        if (ret)
2306                driver_unregister(&hdrv->driver);
2307
2308        return ret;
2309}
2310EXPORT_SYMBOL_GPL(__hid_register_driver);
2311
2312void hid_unregister_driver(struct hid_driver *hdrv)
2313{
2314        driver_remove_file(&hdrv->driver, &driver_attr_new_id);
2315        driver_unregister(&hdrv->driver);
2316        hid_free_dynids(hdrv);
2317}
2318EXPORT_SYMBOL_GPL(hid_unregister_driver);
2319
2320int hid_check_keys_pressed(struct hid_device *hid)
2321{
2322        struct hid_input *hidinput;
2323        int i;
2324
2325        if (!(hid->claimed & HID_CLAIMED_INPUT))
2326                return 0;
2327
2328        list_for_each_entry(hidinput, &hid->inputs, list) {
2329                for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++)
2330                        if (hidinput->input->key[i])
2331                                return 1;
2332        }
2333
2334        return 0;
2335}
2336
2337EXPORT_SYMBOL_GPL(hid_check_keys_pressed);
2338
2339static int __init hid_init(void)
2340{
2341        int ret;
2342
2343        if (hid_debug)
2344                pr_warn("hid_debug is now used solely for parser and driver debugging.\n"
2345                        "debugfs is now used for inspecting the device (report descriptor, reports)\n");
2346
2347        ret = bus_register(&hid_bus_type);
2348        if (ret) {
2349                pr_err("can't register hid bus\n");
2350                goto err;
2351        }
2352
2353        ret = hidraw_init();
2354        if (ret)
2355                goto err_bus;
2356
2357        hid_debug_init();
2358
2359        return 0;
2360err_bus:
2361        bus_unregister(&hid_bus_type);
2362err:
2363        return ret;
2364}
2365
2366static void __exit hid_exit(void)
2367{
2368        hid_debug_exit();
2369        hidraw_exit();
2370        bus_unregister(&hid_bus_type);
2371}
2372
2373module_init(hid_init);
2374module_exit(hid_exit);
2375
2376MODULE_AUTHOR("Andreas Gal");
2377MODULE_AUTHOR("Vojtech Pavlik");
2378MODULE_AUTHOR("Jiri Kosina");
2379MODULE_LICENSE(DRIVER_LICENSE);
2380
2381