hid-core.c revision 47340bd9fefb571888836da942b5aee0e85e959c
1/* 2 * HID support for Linux 3 * 4 * Copyright (c) 1999 Andreas Gal 5 * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz> 6 * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc 7 * Copyright (c) 2006-2010 Jiri Kosina 8 */ 9 10/* 11 * This program is free software; you can redistribute it and/or modify it 12 * under the terms of the GNU General Public License as published by the Free 13 * Software Foundation; either version 2 of the License, or (at your option) 14 * any later version. 15 */ 16 17#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 18 19#include <linux/module.h> 20#include <linux/slab.h> 21#include <linux/init.h> 22#include <linux/kernel.h> 23#include <linux/list.h> 24#include <linux/mm.h> 25#include <linux/spinlock.h> 26#include <asm/unaligned.h> 27#include <asm/byteorder.h> 28#include <linux/input.h> 29#include <linux/wait.h> 30#include <linux/vmalloc.h> 31#include <linux/sched.h> 32 33#include <linux/hid.h> 34#include <linux/hiddev.h> 35#include <linux/hid-debug.h> 36#include <linux/hidraw.h> 37 38#include "hid-ids.h" 39 40/* 41 * Version Information 42 */ 43 44#define DRIVER_DESC "HID core driver" 45#define DRIVER_LICENSE "GPL" 46 47int hid_debug = 0; 48module_param_named(debug, hid_debug, int, 0600); 49MODULE_PARM_DESC(debug, "toggle HID debugging messages"); 50EXPORT_SYMBOL_GPL(hid_debug); 51 52/* 53 * Register a new report for a device. 54 */ 55 56struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id) 57{ 58 struct hid_report_enum *report_enum = device->report_enum + type; 59 struct hid_report *report; 60 61 if (report_enum->report_id_hash[id]) 62 return report_enum->report_id_hash[id]; 63 64 report = kzalloc(sizeof(struct hid_report), GFP_KERNEL); 65 if (!report) 66 return NULL; 67 68 if (id != 0) 69 report_enum->numbered = 1; 70 71 report->id = id; 72 report->type = type; 73 report->size = 0; 74 report->device = device; 75 report_enum->report_id_hash[id] = report; 76 77 list_add_tail(&report->list, &report_enum->report_list); 78 79 return report; 80} 81EXPORT_SYMBOL_GPL(hid_register_report); 82 83/* 84 * Register a new field for this report. 85 */ 86 87static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values) 88{ 89 struct hid_field *field; 90 91 if (report->maxfield == HID_MAX_FIELDS) { 92 dbg_hid("too many fields in report\n"); 93 return NULL; 94 } 95 96 field = kzalloc((sizeof(struct hid_field) + 97 usages * sizeof(struct hid_usage) + 98 values * sizeof(unsigned)), GFP_KERNEL); 99 if (!field) 100 return NULL; 101 102 field->index = report->maxfield++; 103 report->field[field->index] = field; 104 field->usage = (struct hid_usage *)(field + 1); 105 field->value = (s32 *)(field->usage + usages); 106 field->report = report; 107 108 return field; 109} 110 111/* 112 * Open a collection. The type/usage is pushed on the stack. 113 */ 114 115static int open_collection(struct hid_parser *parser, unsigned type) 116{ 117 struct hid_collection *collection; 118 unsigned usage; 119 120 usage = parser->local.usage[0]; 121 122 if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) { 123 dbg_hid("collection stack overflow\n"); 124 return -1; 125 } 126 127 if (parser->device->maxcollection == parser->device->collection_size) { 128 collection = kmalloc(sizeof(struct hid_collection) * 129 parser->device->collection_size * 2, GFP_KERNEL); 130 if (collection == NULL) { 131 dbg_hid("failed to reallocate collection array\n"); 132 return -1; 133 } 134 memcpy(collection, parser->device->collection, 135 sizeof(struct hid_collection) * 136 parser->device->collection_size); 137 memset(collection + parser->device->collection_size, 0, 138 sizeof(struct hid_collection) * 139 parser->device->collection_size); 140 kfree(parser->device->collection); 141 parser->device->collection = collection; 142 parser->device->collection_size *= 2; 143 } 144 145 parser->collection_stack[parser->collection_stack_ptr++] = 146 parser->device->maxcollection; 147 148 collection = parser->device->collection + 149 parser->device->maxcollection++; 150 collection->type = type; 151 collection->usage = usage; 152 collection->level = parser->collection_stack_ptr - 1; 153 154 if (type == HID_COLLECTION_APPLICATION) 155 parser->device->maxapplication++; 156 157 return 0; 158} 159 160/* 161 * Close a collection. 162 */ 163 164static int close_collection(struct hid_parser *parser) 165{ 166 if (!parser->collection_stack_ptr) { 167 dbg_hid("collection stack underflow\n"); 168 return -1; 169 } 170 parser->collection_stack_ptr--; 171 return 0; 172} 173 174/* 175 * Climb up the stack, search for the specified collection type 176 * and return the usage. 177 */ 178 179static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type) 180{ 181 struct hid_collection *collection = parser->device->collection; 182 int n; 183 184 for (n = parser->collection_stack_ptr - 1; n >= 0; n--) { 185 unsigned index = parser->collection_stack[n]; 186 if (collection[index].type == type) 187 return collection[index].usage; 188 } 189 return 0; /* we know nothing about this usage type */ 190} 191 192/* 193 * Add a usage to the temporary parser table. 194 */ 195 196static int hid_add_usage(struct hid_parser *parser, unsigned usage) 197{ 198 if (parser->local.usage_index >= HID_MAX_USAGES) { 199 dbg_hid("usage index exceeded\n"); 200 return -1; 201 } 202 parser->local.usage[parser->local.usage_index] = usage; 203 parser->local.collection_index[parser->local.usage_index] = 204 parser->collection_stack_ptr ? 205 parser->collection_stack[parser->collection_stack_ptr - 1] : 0; 206 parser->local.usage_index++; 207 return 0; 208} 209 210/* 211 * Register a new field for this report. 212 */ 213 214static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags) 215{ 216 struct hid_report *report; 217 struct hid_field *field; 218 int usages; 219 unsigned offset; 220 int i; 221 222 report = hid_register_report(parser->device, report_type, parser->global.report_id); 223 if (!report) { 224 dbg_hid("hid_register_report failed\n"); 225 return -1; 226 } 227 228 if (parser->global.logical_maximum < parser->global.logical_minimum) { 229 dbg_hid("logical range invalid %d %d\n", parser->global.logical_minimum, parser->global.logical_maximum); 230 return -1; 231 } 232 233 offset = report->size; 234 report->size += parser->global.report_size * parser->global.report_count; 235 236 if (!parser->local.usage_index) /* Ignore padding fields */ 237 return 0; 238 239 usages = max_t(int, parser->local.usage_index, parser->global.report_count); 240 241 field = hid_register_field(report, usages, parser->global.report_count); 242 if (!field) 243 return 0; 244 245 field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL); 246 field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL); 247 field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION); 248 249 for (i = 0; i < usages; i++) { 250 int j = i; 251 /* Duplicate the last usage we parsed if we have excess values */ 252 if (i >= parser->local.usage_index) 253 j = parser->local.usage_index - 1; 254 field->usage[i].hid = parser->local.usage[j]; 255 field->usage[i].collection_index = 256 parser->local.collection_index[j]; 257 } 258 259 field->maxusage = usages; 260 field->flags = flags; 261 field->report_offset = offset; 262 field->report_type = report_type; 263 field->report_size = parser->global.report_size; 264 field->report_count = parser->global.report_count; 265 field->logical_minimum = parser->global.logical_minimum; 266 field->logical_maximum = parser->global.logical_maximum; 267 field->physical_minimum = parser->global.physical_minimum; 268 field->physical_maximum = parser->global.physical_maximum; 269 field->unit_exponent = parser->global.unit_exponent; 270 field->unit = parser->global.unit; 271 272 return 0; 273} 274 275/* 276 * Read data value from item. 277 */ 278 279static u32 item_udata(struct hid_item *item) 280{ 281 switch (item->size) { 282 case 1: return item->data.u8; 283 case 2: return item->data.u16; 284 case 4: return item->data.u32; 285 } 286 return 0; 287} 288 289static s32 item_sdata(struct hid_item *item) 290{ 291 switch (item->size) { 292 case 1: return item->data.s8; 293 case 2: return item->data.s16; 294 case 4: return item->data.s32; 295 } 296 return 0; 297} 298 299/* 300 * Process a global item. 301 */ 302 303static int hid_parser_global(struct hid_parser *parser, struct hid_item *item) 304{ 305 switch (item->tag) { 306 case HID_GLOBAL_ITEM_TAG_PUSH: 307 308 if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) { 309 dbg_hid("global enviroment stack overflow\n"); 310 return -1; 311 } 312 313 memcpy(parser->global_stack + parser->global_stack_ptr++, 314 &parser->global, sizeof(struct hid_global)); 315 return 0; 316 317 case HID_GLOBAL_ITEM_TAG_POP: 318 319 if (!parser->global_stack_ptr) { 320 dbg_hid("global enviroment stack underflow\n"); 321 return -1; 322 } 323 324 memcpy(&parser->global, parser->global_stack + 325 --parser->global_stack_ptr, sizeof(struct hid_global)); 326 return 0; 327 328 case HID_GLOBAL_ITEM_TAG_USAGE_PAGE: 329 parser->global.usage_page = item_udata(item); 330 return 0; 331 332 case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM: 333 parser->global.logical_minimum = item_sdata(item); 334 return 0; 335 336 case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM: 337 if (parser->global.logical_minimum < 0) 338 parser->global.logical_maximum = item_sdata(item); 339 else 340 parser->global.logical_maximum = item_udata(item); 341 return 0; 342 343 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM: 344 parser->global.physical_minimum = item_sdata(item); 345 return 0; 346 347 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM: 348 if (parser->global.physical_minimum < 0) 349 parser->global.physical_maximum = item_sdata(item); 350 else 351 parser->global.physical_maximum = item_udata(item); 352 return 0; 353 354 case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT: 355 parser->global.unit_exponent = item_sdata(item); 356 return 0; 357 358 case HID_GLOBAL_ITEM_TAG_UNIT: 359 parser->global.unit = item_udata(item); 360 return 0; 361 362 case HID_GLOBAL_ITEM_TAG_REPORT_SIZE: 363 parser->global.report_size = item_udata(item); 364 if (parser->global.report_size > 32) { 365 dbg_hid("invalid report_size %d\n", 366 parser->global.report_size); 367 return -1; 368 } 369 return 0; 370 371 case HID_GLOBAL_ITEM_TAG_REPORT_COUNT: 372 parser->global.report_count = item_udata(item); 373 if (parser->global.report_count > HID_MAX_USAGES) { 374 dbg_hid("invalid report_count %d\n", 375 parser->global.report_count); 376 return -1; 377 } 378 return 0; 379 380 case HID_GLOBAL_ITEM_TAG_REPORT_ID: 381 parser->global.report_id = item_udata(item); 382 if (parser->global.report_id == 0) { 383 dbg_hid("report_id 0 is invalid\n"); 384 return -1; 385 } 386 return 0; 387 388 default: 389 dbg_hid("unknown global tag 0x%x\n", item->tag); 390 return -1; 391 } 392} 393 394/* 395 * Process a local item. 396 */ 397 398static int hid_parser_local(struct hid_parser *parser, struct hid_item *item) 399{ 400 __u32 data; 401 unsigned n; 402 403 data = item_udata(item); 404 405 switch (item->tag) { 406 case HID_LOCAL_ITEM_TAG_DELIMITER: 407 408 if (data) { 409 /* 410 * We treat items before the first delimiter 411 * as global to all usage sets (branch 0). 412 * In the moment we process only these global 413 * items and the first delimiter set. 414 */ 415 if (parser->local.delimiter_depth != 0) { 416 dbg_hid("nested delimiters\n"); 417 return -1; 418 } 419 parser->local.delimiter_depth++; 420 parser->local.delimiter_branch++; 421 } else { 422 if (parser->local.delimiter_depth < 1) { 423 dbg_hid("bogus close delimiter\n"); 424 return -1; 425 } 426 parser->local.delimiter_depth--; 427 } 428 return 1; 429 430 case HID_LOCAL_ITEM_TAG_USAGE: 431 432 if (parser->local.delimiter_branch > 1) { 433 dbg_hid("alternative usage ignored\n"); 434 return 0; 435 } 436 437 if (item->size <= 2) 438 data = (parser->global.usage_page << 16) + data; 439 440 return hid_add_usage(parser, data); 441 442 case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM: 443 444 if (parser->local.delimiter_branch > 1) { 445 dbg_hid("alternative usage ignored\n"); 446 return 0; 447 } 448 449 if (item->size <= 2) 450 data = (parser->global.usage_page << 16) + data; 451 452 parser->local.usage_minimum = data; 453 return 0; 454 455 case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM: 456 457 if (parser->local.delimiter_branch > 1) { 458 dbg_hid("alternative usage ignored\n"); 459 return 0; 460 } 461 462 if (item->size <= 2) 463 data = (parser->global.usage_page << 16) + data; 464 465 for (n = parser->local.usage_minimum; n <= data; n++) 466 if (hid_add_usage(parser, n)) { 467 dbg_hid("hid_add_usage failed\n"); 468 return -1; 469 } 470 return 0; 471 472 default: 473 474 dbg_hid("unknown local item tag 0x%x\n", item->tag); 475 return 0; 476 } 477 return 0; 478} 479 480/* 481 * Process a main item. 482 */ 483 484static int hid_parser_main(struct hid_parser *parser, struct hid_item *item) 485{ 486 __u32 data; 487 int ret; 488 489 data = item_udata(item); 490 491 switch (item->tag) { 492 case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION: 493 ret = open_collection(parser, data & 0xff); 494 break; 495 case HID_MAIN_ITEM_TAG_END_COLLECTION: 496 ret = close_collection(parser); 497 break; 498 case HID_MAIN_ITEM_TAG_INPUT: 499 ret = hid_add_field(parser, HID_INPUT_REPORT, data); 500 break; 501 case HID_MAIN_ITEM_TAG_OUTPUT: 502 ret = hid_add_field(parser, HID_OUTPUT_REPORT, data); 503 break; 504 case HID_MAIN_ITEM_TAG_FEATURE: 505 ret = hid_add_field(parser, HID_FEATURE_REPORT, data); 506 break; 507 default: 508 dbg_hid("unknown main item tag 0x%x\n", item->tag); 509 ret = 0; 510 } 511 512 memset(&parser->local, 0, sizeof(parser->local)); /* Reset the local parser environment */ 513 514 return ret; 515} 516 517/* 518 * Process a reserved item. 519 */ 520 521static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item) 522{ 523 dbg_hid("reserved item type, tag 0x%x\n", item->tag); 524 return 0; 525} 526 527/* 528 * Free a report and all registered fields. The field->usage and 529 * field->value table's are allocated behind the field, so we need 530 * only to free(field) itself. 531 */ 532 533static void hid_free_report(struct hid_report *report) 534{ 535 unsigned n; 536 537 for (n = 0; n < report->maxfield; n++) 538 kfree(report->field[n]); 539 kfree(report); 540} 541 542/* 543 * Free a device structure, all reports, and all fields. 544 */ 545 546static void hid_device_release(struct device *dev) 547{ 548 struct hid_device *device = container_of(dev, struct hid_device, dev); 549 unsigned i, j; 550 551 for (i = 0; i < HID_REPORT_TYPES; i++) { 552 struct hid_report_enum *report_enum = device->report_enum + i; 553 554 for (j = 0; j < 256; j++) { 555 struct hid_report *report = report_enum->report_id_hash[j]; 556 if (report) 557 hid_free_report(report); 558 } 559 } 560 561 kfree(device->rdesc); 562 kfree(device->collection); 563 kfree(device); 564} 565 566/* 567 * Fetch a report description item from the data stream. We support long 568 * items, though they are not used yet. 569 */ 570 571static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item) 572{ 573 u8 b; 574 575 if ((end - start) <= 0) 576 return NULL; 577 578 b = *start++; 579 580 item->type = (b >> 2) & 3; 581 item->tag = (b >> 4) & 15; 582 583 if (item->tag == HID_ITEM_TAG_LONG) { 584 585 item->format = HID_ITEM_FORMAT_LONG; 586 587 if ((end - start) < 2) 588 return NULL; 589 590 item->size = *start++; 591 item->tag = *start++; 592 593 if ((end - start) < item->size) 594 return NULL; 595 596 item->data.longdata = start; 597 start += item->size; 598 return start; 599 } 600 601 item->format = HID_ITEM_FORMAT_SHORT; 602 item->size = b & 3; 603 604 switch (item->size) { 605 case 0: 606 return start; 607 608 case 1: 609 if ((end - start) < 1) 610 return NULL; 611 item->data.u8 = *start++; 612 return start; 613 614 case 2: 615 if ((end - start) < 2) 616 return NULL; 617 item->data.u16 = get_unaligned_le16(start); 618 start = (__u8 *)((__le16 *)start + 1); 619 return start; 620 621 case 3: 622 item->size++; 623 if ((end - start) < 4) 624 return NULL; 625 item->data.u32 = get_unaligned_le32(start); 626 start = (__u8 *)((__le32 *)start + 1); 627 return start; 628 } 629 630 return NULL; 631} 632 633/** 634 * hid_parse_report - parse device report 635 * 636 * @device: hid device 637 * @start: report start 638 * @size: report size 639 * 640 * Parse a report description into a hid_device structure. Reports are 641 * enumerated, fields are attached to these reports. 642 * 0 returned on success, otherwise nonzero error value. 643 */ 644int hid_parse_report(struct hid_device *device, __u8 *start, 645 unsigned size) 646{ 647 struct hid_parser *parser; 648 struct hid_item item; 649 __u8 *end; 650 int ret; 651 static int (*dispatch_type[])(struct hid_parser *parser, 652 struct hid_item *item) = { 653 hid_parser_main, 654 hid_parser_global, 655 hid_parser_local, 656 hid_parser_reserved 657 }; 658 659 if (device->driver->report_fixup) 660 start = device->driver->report_fixup(device, start, &size); 661 662 device->rdesc = kmemdup(start, size, GFP_KERNEL); 663 if (device->rdesc == NULL) 664 return -ENOMEM; 665 device->rsize = size; 666 667 parser = vzalloc(sizeof(struct hid_parser)); 668 if (!parser) { 669 ret = -ENOMEM; 670 goto err; 671 } 672 673 parser->device = device; 674 675 end = start + size; 676 ret = -EINVAL; 677 while ((start = fetch_item(start, end, &item)) != NULL) { 678 679 if (item.format != HID_ITEM_FORMAT_SHORT) { 680 dbg_hid("unexpected long global item\n"); 681 goto err; 682 } 683 684 if (dispatch_type[item.type](parser, &item)) { 685 dbg_hid("item %u %u %u %u parsing failed\n", 686 item.format, (unsigned)item.size, 687 (unsigned)item.type, (unsigned)item.tag); 688 goto err; 689 } 690 691 if (start == end) { 692 if (parser->collection_stack_ptr) { 693 dbg_hid("unbalanced collection at end of report description\n"); 694 goto err; 695 } 696 if (parser->local.delimiter_depth) { 697 dbg_hid("unbalanced delimiter at end of report description\n"); 698 goto err; 699 } 700 vfree(parser); 701 return 0; 702 } 703 } 704 705 dbg_hid("item fetching failed at offset %d\n", (int)(end - start)); 706err: 707 vfree(parser); 708 return ret; 709} 710EXPORT_SYMBOL_GPL(hid_parse_report); 711 712/* 713 * Convert a signed n-bit integer to signed 32-bit integer. Common 714 * cases are done through the compiler, the screwed things has to be 715 * done by hand. 716 */ 717 718static s32 snto32(__u32 value, unsigned n) 719{ 720 switch (n) { 721 case 8: return ((__s8)value); 722 case 16: return ((__s16)value); 723 case 32: return ((__s32)value); 724 } 725 return value & (1 << (n - 1)) ? value | (-1 << n) : value; 726} 727 728/* 729 * Convert a signed 32-bit integer to a signed n-bit integer. 730 */ 731 732static u32 s32ton(__s32 value, unsigned n) 733{ 734 s32 a = value >> (n - 1); 735 if (a && a != -1) 736 return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1; 737 return value & ((1 << n) - 1); 738} 739 740/* 741 * Extract/implement a data field from/to a little endian report (bit array). 742 * 743 * Code sort-of follows HID spec: 744 * http://www.usb.org/developers/devclass_docs/HID1_11.pdf 745 * 746 * While the USB HID spec allows unlimited length bit fields in "report 747 * descriptors", most devices never use more than 16 bits. 748 * One model of UPS is claimed to report "LINEV" as a 32-bit field. 749 * Search linux-kernel and linux-usb-devel archives for "hid-core extract". 750 */ 751 752static __u32 extract(const struct hid_device *hid, __u8 *report, 753 unsigned offset, unsigned n) 754{ 755 u64 x; 756 757 if (n > 32) 758 hid_warn(hid, "extract() called with n (%d) > 32! (%s)\n", 759 n, current->comm); 760 761 report += offset >> 3; /* adjust byte index */ 762 offset &= 7; /* now only need bit offset into one byte */ 763 x = get_unaligned_le64(report); 764 x = (x >> offset) & ((1ULL << n) - 1); /* extract bit field */ 765 return (u32) x; 766} 767 768/* 769 * "implement" : set bits in a little endian bit stream. 770 * Same concepts as "extract" (see comments above). 771 * The data mangled in the bit stream remains in little endian 772 * order the whole time. It make more sense to talk about 773 * endianness of register values by considering a register 774 * a "cached" copy of the little endiad bit stream. 775 */ 776static void implement(const struct hid_device *hid, __u8 *report, 777 unsigned offset, unsigned n, __u32 value) 778{ 779 u64 x; 780 u64 m = (1ULL << n) - 1; 781 782 if (n > 32) 783 hid_warn(hid, "%s() called with n (%d) > 32! (%s)\n", 784 __func__, n, current->comm); 785 786 if (value > m) 787 hid_warn(hid, "%s() called with too large value %d! (%s)\n", 788 __func__, value, current->comm); 789 WARN_ON(value > m); 790 value &= m; 791 792 report += offset >> 3; 793 offset &= 7; 794 795 x = get_unaligned_le64(report); 796 x &= ~(m << offset); 797 x |= ((u64)value) << offset; 798 put_unaligned_le64(x, report); 799} 800 801/* 802 * Search an array for a value. 803 */ 804 805static int search(__s32 *array, __s32 value, unsigned n) 806{ 807 while (n--) { 808 if (*array++ == value) 809 return 0; 810 } 811 return -1; 812} 813 814/** 815 * hid_match_report - check if driver's raw_event should be called 816 * 817 * @hid: hid device 818 * @report_type: type to match against 819 * 820 * compare hid->driver->report_table->report_type to report->type 821 */ 822static int hid_match_report(struct hid_device *hid, struct hid_report *report) 823{ 824 const struct hid_report_id *id = hid->driver->report_table; 825 826 if (!id) /* NULL means all */ 827 return 1; 828 829 for (; id->report_type != HID_TERMINATOR; id++) 830 if (id->report_type == HID_ANY_ID || 831 id->report_type == report->type) 832 return 1; 833 return 0; 834} 835 836/** 837 * hid_match_usage - check if driver's event should be called 838 * 839 * @hid: hid device 840 * @usage: usage to match against 841 * 842 * compare hid->driver->usage_table->usage_{type,code} to 843 * usage->usage_{type,code} 844 */ 845static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage) 846{ 847 const struct hid_usage_id *id = hid->driver->usage_table; 848 849 if (!id) /* NULL means all */ 850 return 1; 851 852 for (; id->usage_type != HID_ANY_ID - 1; id++) 853 if ((id->usage_hid == HID_ANY_ID || 854 id->usage_hid == usage->hid) && 855 (id->usage_type == HID_ANY_ID || 856 id->usage_type == usage->type) && 857 (id->usage_code == HID_ANY_ID || 858 id->usage_code == usage->code)) 859 return 1; 860 return 0; 861} 862 863static void hid_process_event(struct hid_device *hid, struct hid_field *field, 864 struct hid_usage *usage, __s32 value, int interrupt) 865{ 866 struct hid_driver *hdrv = hid->driver; 867 int ret; 868 869 hid_dump_input(hid, usage, value); 870 871 if (hdrv && hdrv->event && hid_match_usage(hid, usage)) { 872 ret = hdrv->event(hid, field, usage, value); 873 if (ret != 0) { 874 if (ret < 0) 875 dbg_hid("%s's event failed with %d\n", 876 hdrv->name, ret); 877 return; 878 } 879 } 880 881 if (hid->claimed & HID_CLAIMED_INPUT) 882 hidinput_hid_event(hid, field, usage, value); 883 if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event) 884 hid->hiddev_hid_event(hid, field, usage, value); 885} 886 887/* 888 * Analyse a received field, and fetch the data from it. The field 889 * content is stored for next report processing (we do differential 890 * reporting to the layer). 891 */ 892 893static void hid_input_field(struct hid_device *hid, struct hid_field *field, 894 __u8 *data, int interrupt) 895{ 896 unsigned n; 897 unsigned count = field->report_count; 898 unsigned offset = field->report_offset; 899 unsigned size = field->report_size; 900 __s32 min = field->logical_minimum; 901 __s32 max = field->logical_maximum; 902 __s32 *value; 903 904 value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC); 905 if (!value) 906 return; 907 908 for (n = 0; n < count; n++) { 909 910 value[n] = min < 0 ? 911 snto32(extract(hid, data, offset + n * size, size), 912 size) : 913 extract(hid, data, offset + n * size, size); 914 915 /* Ignore report if ErrorRollOver */ 916 if (!(field->flags & HID_MAIN_ITEM_VARIABLE) && 917 value[n] >= min && value[n] <= max && 918 field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1) 919 goto exit; 920 } 921 922 for (n = 0; n < count; n++) { 923 924 if (HID_MAIN_ITEM_VARIABLE & field->flags) { 925 hid_process_event(hid, field, &field->usage[n], value[n], interrupt); 926 continue; 927 } 928 929 if (field->value[n] >= min && field->value[n] <= max 930 && field->usage[field->value[n] - min].hid 931 && search(value, field->value[n], count)) 932 hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt); 933 934 if (value[n] >= min && value[n] <= max 935 && field->usage[value[n] - min].hid 936 && search(field->value, value[n], count)) 937 hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt); 938 } 939 940 memcpy(field->value, value, count * sizeof(__s32)); 941exit: 942 kfree(value); 943} 944 945/* 946 * Output the field into the report. 947 */ 948 949static void hid_output_field(const struct hid_device *hid, 950 struct hid_field *field, __u8 *data) 951{ 952 unsigned count = field->report_count; 953 unsigned offset = field->report_offset; 954 unsigned size = field->report_size; 955 unsigned n; 956 957 for (n = 0; n < count; n++) { 958 if (field->logical_minimum < 0) /* signed values */ 959 implement(hid, data, offset + n * size, size, 960 s32ton(field->value[n], size)); 961 else /* unsigned values */ 962 implement(hid, data, offset + n * size, size, 963 field->value[n]); 964 } 965} 966 967/* 968 * Create a report. 969 */ 970 971void hid_output_report(struct hid_report *report, __u8 *data) 972{ 973 unsigned n; 974 975 if (report->id > 0) 976 *data++ = report->id; 977 978 memset(data, 0, ((report->size - 1) >> 3) + 1); 979 for (n = 0; n < report->maxfield; n++) 980 hid_output_field(report->device, report->field[n], data); 981} 982EXPORT_SYMBOL_GPL(hid_output_report); 983 984/* 985 * Set a field value. The report this field belongs to has to be 986 * created and transferred to the device, to set this value in the 987 * device. 988 */ 989 990int hid_set_field(struct hid_field *field, unsigned offset, __s32 value) 991{ 992 unsigned size = field->report_size; 993 994 hid_dump_input(field->report->device, field->usage + offset, value); 995 996 if (offset >= field->report_count) { 997 dbg_hid("offset (%d) exceeds report_count (%d)\n", offset, field->report_count); 998 return -1; 999 } 1000 if (field->logical_minimum < 0) { 1001 if (value != snto32(s32ton(value, size), size)) { 1002 dbg_hid("value %d is out of range\n", value); 1003 return -1; 1004 } 1005 } 1006 field->value[offset] = value; 1007 return 0; 1008} 1009EXPORT_SYMBOL_GPL(hid_set_field); 1010 1011static struct hid_report *hid_get_report(struct hid_report_enum *report_enum, 1012 const u8 *data) 1013{ 1014 struct hid_report *report; 1015 unsigned int n = 0; /* Normally report number is 0 */ 1016 1017 /* Device uses numbered reports, data[0] is report number */ 1018 if (report_enum->numbered) 1019 n = *data; 1020 1021 report = report_enum->report_id_hash[n]; 1022 if (report == NULL) 1023 dbg_hid("undefined report_id %u received\n", n); 1024 1025 return report; 1026} 1027 1028void hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size, 1029 int interrupt) 1030{ 1031 struct hid_report_enum *report_enum = hid->report_enum + type; 1032 struct hid_report *report; 1033 unsigned int a; 1034 int rsize, csize = size; 1035 u8 *cdata = data; 1036 1037 report = hid_get_report(report_enum, data); 1038 if (!report) 1039 return; 1040 1041 if (report_enum->numbered) { 1042 cdata++; 1043 csize--; 1044 } 1045 1046 rsize = ((report->size - 1) >> 3) + 1; 1047 1048 if (csize < rsize) { 1049 dbg_hid("report %d is too short, (%d < %d)\n", report->id, 1050 csize, rsize); 1051 memset(cdata + csize, 0, rsize - csize); 1052 } 1053 1054 if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event) 1055 hid->hiddev_report_event(hid, report); 1056 if (hid->claimed & HID_CLAIMED_HIDRAW) 1057 hidraw_report_event(hid, data, size); 1058 1059 for (a = 0; a < report->maxfield; a++) 1060 hid_input_field(hid, report->field[a], cdata, interrupt); 1061 1062 if (hid->claimed & HID_CLAIMED_INPUT) 1063 hidinput_report_event(hid, report); 1064} 1065EXPORT_SYMBOL_GPL(hid_report_raw_event); 1066 1067/** 1068 * hid_input_report - report data from lower layer (usb, bt...) 1069 * 1070 * @hid: hid device 1071 * @type: HID report type (HID_*_REPORT) 1072 * @data: report contents 1073 * @size: size of data parameter 1074 * @interrupt: distinguish between interrupt and control transfers 1075 * 1076 * This is data entry for lower layers. 1077 */ 1078int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt) 1079{ 1080 struct hid_report_enum *report_enum; 1081 struct hid_driver *hdrv; 1082 struct hid_report *report; 1083 char *buf; 1084 unsigned int i; 1085 int ret; 1086 1087 if (!hid || !hid->driver) 1088 return -ENODEV; 1089 report_enum = hid->report_enum + type; 1090 hdrv = hid->driver; 1091 1092 if (!size) { 1093 dbg_hid("empty report\n"); 1094 return -1; 1095 } 1096 1097 buf = kmalloc(sizeof(char) * HID_DEBUG_BUFSIZE, GFP_ATOMIC); 1098 1099 if (!buf) 1100 goto nomem; 1101 1102 /* dump the report */ 1103 snprintf(buf, HID_DEBUG_BUFSIZE - 1, 1104 "\nreport (size %u) (%snumbered) = ", size, report_enum->numbered ? "" : "un"); 1105 hid_debug_event(hid, buf); 1106 1107 for (i = 0; i < size; i++) { 1108 snprintf(buf, HID_DEBUG_BUFSIZE - 1, 1109 " %02x", data[i]); 1110 hid_debug_event(hid, buf); 1111 } 1112 hid_debug_event(hid, "\n"); 1113 kfree(buf); 1114 1115nomem: 1116 report = hid_get_report(report_enum, data); 1117 1118 if (!report) 1119 return -1; 1120 1121 if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) { 1122 ret = hdrv->raw_event(hid, report, data, size); 1123 if (ret != 0) 1124 return ret < 0 ? ret : 0; 1125 } 1126 1127 hid_report_raw_event(hid, type, data, size, interrupt); 1128 1129 return 0; 1130} 1131EXPORT_SYMBOL_GPL(hid_input_report); 1132 1133static bool hid_match_one_id(struct hid_device *hdev, 1134 const struct hid_device_id *id) 1135{ 1136 return id->bus == hdev->bus && 1137 (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) && 1138 (id->product == HID_ANY_ID || id->product == hdev->product); 1139} 1140 1141static const struct hid_device_id *hid_match_id(struct hid_device *hdev, 1142 const struct hid_device_id *id) 1143{ 1144 for (; id->bus; id++) 1145 if (hid_match_one_id(hdev, id)) 1146 return id; 1147 1148 return NULL; 1149} 1150 1151static const struct hid_device_id hid_hiddev_list[] = { 1152 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) }, 1153 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) }, 1154 { } 1155}; 1156 1157static bool hid_hiddev(struct hid_device *hdev) 1158{ 1159 return !!hid_match_id(hdev, hid_hiddev_list); 1160} 1161 1162int hid_connect(struct hid_device *hdev, unsigned int connect_mask) 1163{ 1164 static const char *types[] = { "Device", "Pointer", "Mouse", "Device", 1165 "Joystick", "Gamepad", "Keyboard", "Keypad", 1166 "Multi-Axis Controller" 1167 }; 1168 const char *type, *bus; 1169 char buf[64]; 1170 unsigned int i; 1171 int len; 1172 1173 if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE) 1174 connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV); 1175 if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE) 1176 connect_mask |= HID_CONNECT_HIDINPUT_FORCE; 1177 if (hdev->bus != BUS_USB) 1178 connect_mask &= ~HID_CONNECT_HIDDEV; 1179 if (hid_hiddev(hdev)) 1180 connect_mask |= HID_CONNECT_HIDDEV_FORCE; 1181 1182 if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev, 1183 connect_mask & HID_CONNECT_HIDINPUT_FORCE)) 1184 hdev->claimed |= HID_CLAIMED_INPUT; 1185 if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect && 1186 !hdev->hiddev_connect(hdev, 1187 connect_mask & HID_CONNECT_HIDDEV_FORCE)) 1188 hdev->claimed |= HID_CLAIMED_HIDDEV; 1189 if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev)) 1190 hdev->claimed |= HID_CLAIMED_HIDRAW; 1191 1192 if (!hdev->claimed) { 1193 hid_err(hdev, "claimed by neither input, hiddev nor hidraw\n"); 1194 return -ENODEV; 1195 } 1196 1197 if ((hdev->claimed & HID_CLAIMED_INPUT) && 1198 (connect_mask & HID_CONNECT_FF) && hdev->ff_init) 1199 hdev->ff_init(hdev); 1200 1201 len = 0; 1202 if (hdev->claimed & HID_CLAIMED_INPUT) 1203 len += sprintf(buf + len, "input"); 1204 if (hdev->claimed & HID_CLAIMED_HIDDEV) 1205 len += sprintf(buf + len, "%shiddev%d", len ? "," : "", 1206 hdev->minor); 1207 if (hdev->claimed & HID_CLAIMED_HIDRAW) 1208 len += sprintf(buf + len, "%shidraw%d", len ? "," : "", 1209 ((struct hidraw *)hdev->hidraw)->minor); 1210 1211 type = "Device"; 1212 for (i = 0; i < hdev->maxcollection; i++) { 1213 struct hid_collection *col = &hdev->collection[i]; 1214 if (col->type == HID_COLLECTION_APPLICATION && 1215 (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK && 1216 (col->usage & 0xffff) < ARRAY_SIZE(types)) { 1217 type = types[col->usage & 0xffff]; 1218 break; 1219 } 1220 } 1221 1222 switch (hdev->bus) { 1223 case BUS_USB: 1224 bus = "USB"; 1225 break; 1226 case BUS_BLUETOOTH: 1227 bus = "BLUETOOTH"; 1228 break; 1229 default: 1230 bus = "<UNKNOWN>"; 1231 } 1232 1233 hid_info(hdev, "%s: %s HID v%x.%02x %s [%s] on %s\n", 1234 buf, bus, hdev->version >> 8, hdev->version & 0xff, 1235 type, hdev->name, hdev->phys); 1236 1237 return 0; 1238} 1239EXPORT_SYMBOL_GPL(hid_connect); 1240 1241void hid_disconnect(struct hid_device *hdev) 1242{ 1243 if (hdev->claimed & HID_CLAIMED_INPUT) 1244 hidinput_disconnect(hdev); 1245 if (hdev->claimed & HID_CLAIMED_HIDDEV) 1246 hdev->hiddev_disconnect(hdev); 1247 if (hdev->claimed & HID_CLAIMED_HIDRAW) 1248 hidraw_disconnect(hdev); 1249} 1250EXPORT_SYMBOL_GPL(hid_disconnect); 1251 1252/* a list of devices for which there is a specialized driver on HID bus */ 1253static const struct hid_device_id hid_have_special_driver[] = { 1254 { HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M1968) }, 1255 { HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M2256) }, 1256 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) }, 1257 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) }, 1258 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) }, 1259#if defined(CONFIG_HID_ACRUX_FF) || defined(CONFIG_HID_ACRUX_FF_MODULE) 1260 { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) }, 1261#endif 1262 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ATV_IRCONTROL) }, 1263 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) }, 1264 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) }, 1265 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) }, 1266 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) }, 1267 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) }, 1268 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) }, 1269 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) }, 1270 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) }, 1271 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) }, 1272 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) }, 1273 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) }, 1274 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) }, 1275 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) }, 1276 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) }, 1277 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) }, 1278 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) }, 1279 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) }, 1280 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) }, 1281 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) }, 1282 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) }, 1283 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) }, 1284 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) }, 1285 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) }, 1286 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) }, 1287 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) }, 1288 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) }, 1289 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) }, 1290 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) }, 1291 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) }, 1292 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) }, 1293 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) }, 1294 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) }, 1295 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) }, 1296 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) }, 1297 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) }, 1298 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) }, 1299 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) }, 1300 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) }, 1301 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) }, 1302 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) }, 1303 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) }, 1304 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) }, 1305 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) }, 1306 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) }, 1307 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) }, 1308 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) }, 1309 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) }, 1310 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) }, 1311 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) }, 1312 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) }, 1313 { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_T91MT) }, 1314 { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) }, 1315 { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) }, 1316 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) }, 1317 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) }, 1318 { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) }, 1319 { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH) }, 1320 { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) }, 1321 { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) }, 1322 { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) }, 1323 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) }, 1324 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) }, 1325 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) }, 1326 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS) }, 1327 { HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) }, 1328 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) }, 1329 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) }, 1330 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) }, 1331 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) }, 1332 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_TRUETOUCH) }, 1333 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) }, 1334 { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH) }, 1335 { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1) }, 1336 { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH2) }, 1337 { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH3) }, 1338 { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH4) }, 1339 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) }, 1340 { HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) }, 1341 { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) }, 1342 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) }, 1343 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) }, 1344 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) }, 1345 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) }, 1346 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) }, 1347 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) }, 1348 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) }, 1349 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) }, 1350 { HID_USB_DEVICE(USB_VENDOR_ID_HANVON, USB_DEVICE_ID_HANVON_MULTITOUCH) }, 1351 { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) }, 1352 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) }, 1353 { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) }, 1354 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) }, 1355 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) }, 1356 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) }, 1357 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) }, 1358 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) }, 1359 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) }, 1360 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) }, 1361 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) }, 1362 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) }, 1363 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) }, 1364 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) }, 1365 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) }, 1366 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) }, 1367 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) }, 1368 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) }, 1369 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) }, 1370 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) }, 1371 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) }, 1372 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) }, 1373 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) }, 1374 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) }, 1375 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) }, 1376 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) }, 1377 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) }, 1378 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) }, 1379 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) }, 1380 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) }, 1381 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) }, 1382 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) }, 1383 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) }, 1384 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) }, 1385 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) }, 1386 { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) }, 1387 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) }, 1388 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) }, 1389 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) }, 1390 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) }, 1391 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) }, 1392 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) }, 1393 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) }, 1394 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) }, 1395 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) }, 1396 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) }, 1397 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) }, 1398 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) }, 1399 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) }, 1400 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) }, 1401 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) }, 1402 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) }, 1403 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) }, 1404 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) }, 1405 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) }, 1406 { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) }, 1407 { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) }, 1408 { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) }, 1409 { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN) }, 1410 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) }, 1411 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) }, 1412 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) }, 1413 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) }, 1414 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) }, 1415 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) }, 1416 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) }, 1417 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) }, 1418 { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM, USB_DEVICE_ID_MTP) }, 1419 { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, USB_DEVICE_ID_MTP_STM) }, 1420 { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX, USB_DEVICE_ID_MTP_SITRONIX) }, 1421 { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) }, 1422 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) }, 1423 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) }, 1424 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) }, 1425 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) }, 1426 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) }, 1427 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) }, 1428 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) }, 1429 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) }, 1430 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) }, 1431 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) }, 1432 { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) }, 1433 { HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) }, 1434 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) }, 1435 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) }, 1436 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) }, 1437 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) }, 1438 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) }, 1439 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) }, 1440 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) }, 1441 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) }, 1442 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) }, 1443 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) }, 1444 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) }, 1445 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) }, 1446 { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) }, 1447 1448 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) }, 1449 { } 1450}; 1451 1452struct hid_dynid { 1453 struct list_head list; 1454 struct hid_device_id id; 1455}; 1456 1457/** 1458 * store_new_id - add a new HID device ID to this driver and re-probe devices 1459 * @driver: target device driver 1460 * @buf: buffer for scanning device ID data 1461 * @count: input size 1462 * 1463 * Adds a new dynamic hid device ID to this driver, 1464 * and causes the driver to probe for all devices again. 1465 */ 1466static ssize_t store_new_id(struct device_driver *drv, const char *buf, 1467 size_t count) 1468{ 1469 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver); 1470 struct hid_dynid *dynid; 1471 __u32 bus, vendor, product; 1472 unsigned long driver_data = 0; 1473 int ret; 1474 1475 ret = sscanf(buf, "%x %x %x %lx", 1476 &bus, &vendor, &product, &driver_data); 1477 if (ret < 3) 1478 return -EINVAL; 1479 1480 dynid = kzalloc(sizeof(*dynid), GFP_KERNEL); 1481 if (!dynid) 1482 return -ENOMEM; 1483 1484 dynid->id.bus = bus; 1485 dynid->id.vendor = vendor; 1486 dynid->id.product = product; 1487 dynid->id.driver_data = driver_data; 1488 1489 spin_lock(&hdrv->dyn_lock); 1490 list_add_tail(&dynid->list, &hdrv->dyn_list); 1491 spin_unlock(&hdrv->dyn_lock); 1492 1493 ret = 0; 1494 if (get_driver(&hdrv->driver)) { 1495 ret = driver_attach(&hdrv->driver); 1496 put_driver(&hdrv->driver); 1497 } 1498 1499 return ret ? : count; 1500} 1501static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id); 1502 1503static void hid_free_dynids(struct hid_driver *hdrv) 1504{ 1505 struct hid_dynid *dynid, *n; 1506 1507 spin_lock(&hdrv->dyn_lock); 1508 list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) { 1509 list_del(&dynid->list); 1510 kfree(dynid); 1511 } 1512 spin_unlock(&hdrv->dyn_lock); 1513} 1514 1515static const struct hid_device_id *hid_match_device(struct hid_device *hdev, 1516 struct hid_driver *hdrv) 1517{ 1518 struct hid_dynid *dynid; 1519 1520 spin_lock(&hdrv->dyn_lock); 1521 list_for_each_entry(dynid, &hdrv->dyn_list, list) { 1522 if (hid_match_one_id(hdev, &dynid->id)) { 1523 spin_unlock(&hdrv->dyn_lock); 1524 return &dynid->id; 1525 } 1526 } 1527 spin_unlock(&hdrv->dyn_lock); 1528 1529 return hid_match_id(hdev, hdrv->id_table); 1530} 1531 1532static int hid_bus_match(struct device *dev, struct device_driver *drv) 1533{ 1534 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver); 1535 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 1536 1537 if (!hid_match_device(hdev, hdrv)) 1538 return 0; 1539 1540 /* generic wants all that don't have specialized driver */ 1541 if (!strncmp(hdrv->name, "generic-", 8)) 1542 return !hid_match_id(hdev, hid_have_special_driver); 1543 1544 return 1; 1545} 1546 1547static int hid_device_probe(struct device *dev) 1548{ 1549 struct hid_driver *hdrv = container_of(dev->driver, 1550 struct hid_driver, driver); 1551 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 1552 const struct hid_device_id *id; 1553 int ret = 0; 1554 1555 if (!hdev->driver) { 1556 id = hid_match_device(hdev, hdrv); 1557 if (id == NULL) 1558 return -ENODEV; 1559 1560 hdev->driver = hdrv; 1561 if (hdrv->probe) { 1562 ret = hdrv->probe(hdev, id); 1563 } else { /* default probe */ 1564 ret = hid_parse(hdev); 1565 if (!ret) 1566 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); 1567 } 1568 if (ret) 1569 hdev->driver = NULL; 1570 } 1571 return ret; 1572} 1573 1574static int hid_device_remove(struct device *dev) 1575{ 1576 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 1577 struct hid_driver *hdrv = hdev->driver; 1578 1579 if (hdrv) { 1580 if (hdrv->remove) 1581 hdrv->remove(hdev); 1582 else /* default remove */ 1583 hid_hw_stop(hdev); 1584 hdev->driver = NULL; 1585 } 1586 1587 return 0; 1588} 1589 1590static int hid_uevent(struct device *dev, struct kobj_uevent_env *env) 1591{ 1592 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 1593 1594 if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X", 1595 hdev->bus, hdev->vendor, hdev->product)) 1596 return -ENOMEM; 1597 1598 if (add_uevent_var(env, "HID_NAME=%s", hdev->name)) 1599 return -ENOMEM; 1600 1601 if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys)) 1602 return -ENOMEM; 1603 1604 if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq)) 1605 return -ENOMEM; 1606 1607 if (add_uevent_var(env, "MODALIAS=hid:b%04Xv%08Xp%08X", 1608 hdev->bus, hdev->vendor, hdev->product)) 1609 return -ENOMEM; 1610 1611 return 0; 1612} 1613 1614static struct bus_type hid_bus_type = { 1615 .name = "hid", 1616 .match = hid_bus_match, 1617 .probe = hid_device_probe, 1618 .remove = hid_device_remove, 1619 .uevent = hid_uevent, 1620}; 1621 1622/* a list of devices that shouldn't be handled by HID core at all */ 1623static const struct hid_device_id hid_ignore_list[] = { 1624 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) }, 1625 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) }, 1626 { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) }, 1627 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) }, 1628 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) }, 1629 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) }, 1630 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) }, 1631 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) }, 1632 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) }, 1633 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) }, 1634 { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) }, 1635 { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) }, 1636 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)}, 1637 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)}, 1638 { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) }, 1639 { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) }, 1640 { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) }, 1641 { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) }, 1642 { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) }, 1643 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) }, 1644 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) }, 1645 { HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) }, 1646 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) }, 1647 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) }, 1648 { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x0004) }, 1649 { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) }, 1650 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) }, 1651 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) }, 1652 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) }, 1653 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0003) }, 1654 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) }, 1655 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) }, 1656 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) }, 1657 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) }, 1658 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) }, 1659 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) }, 1660 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) }, 1661 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) }, 1662 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) }, 1663 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) }, 1664 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) }, 1665 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) }, 1666 { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) }, 1667 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) }, 1668 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) }, 1669 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) }, 1670 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) }, 1671 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) }, 1672 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) }, 1673 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) }, 1674 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) }, 1675 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) }, 1676 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) }, 1677 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) }, 1678 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) }, 1679 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) }, 1680 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) }, 1681 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) }, 1682 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) }, 1683 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) }, 1684 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) }, 1685 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) }, 1686 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) }, 1687 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) }, 1688 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) }, 1689 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) }, 1690 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) }, 1691 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) }, 1692 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) }, 1693 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) }, 1694 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) }, 1695 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) }, 1696 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) }, 1697 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) }, 1698 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) }, 1699 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) }, 1700 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) }, 1701 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) }, 1702 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) }, 1703 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) }, 1704 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) }, 1705 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) }, 1706 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) }, 1707 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) }, 1708 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) }, 1709 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) }, 1710 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) }, 1711 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) }, 1712 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) }, 1713 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) }, 1714 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) }, 1715 { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) }, 1716 { HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_JESS_YUREX) }, 1717 { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) }, 1718 { HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) }, 1719 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) }, 1720 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) }, 1721 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) }, 1722 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) }, 1723 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) }, 1724 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) }, 1725 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) }, 1726 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) }, 1727 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY1) }, 1728 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) }, 1729 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) }, 1730 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) }, 1731 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) }, 1732 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) }, 1733 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) }, 1734 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) }, 1735 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) }, 1736 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) }, 1737 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) }, 1738 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) }, 1739 { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) }, 1740 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) }, 1741 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) }, 1742 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) }, 1743 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) }, 1744 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) }, 1745 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) }, 1746 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) }, 1747 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) }, 1748 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) }, 1749 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) }, 1750 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) }, 1751 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) }, 1752 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) }, 1753 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) }, 1754 { HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) }, 1755 { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) }, 1756 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) }, 1757 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) }, 1758 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) }, 1759 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) }, 1760 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) }, 1761 { HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) }, 1762 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) }, 1763 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) }, 1764 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) }, 1765 { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) }, 1766 { } 1767}; 1768 1769/** 1770 * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer 1771 * 1772 * There are composite devices for which we want to ignore only a certain 1773 * interface. This is a list of devices for which only the mouse interface will 1774 * be ignored. This allows a dedicated driver to take care of the interface. 1775 */ 1776static const struct hid_device_id hid_mouse_ignore_list[] = { 1777 /* appletouch driver */ 1778 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) }, 1779 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) }, 1780 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) }, 1781 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) }, 1782 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) }, 1783 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) }, 1784 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) }, 1785 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) }, 1786 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) }, 1787 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) }, 1788 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) }, 1789 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) }, 1790 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) }, 1791 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) }, 1792 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) }, 1793 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) }, 1794 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) }, 1795 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) }, 1796 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) }, 1797 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) }, 1798 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) }, 1799 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) }, 1800 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) }, 1801 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) }, 1802 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) }, 1803 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) }, 1804 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) }, 1805 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) }, 1806 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) }, 1807 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) }, 1808 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) }, 1809 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) }, 1810 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) }, 1811 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) }, 1812 { } 1813}; 1814 1815static bool hid_ignore(struct hid_device *hdev) 1816{ 1817 switch (hdev->vendor) { 1818 case USB_VENDOR_ID_CODEMERCS: 1819 /* ignore all Code Mercenaries IOWarrior devices */ 1820 if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST && 1821 hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST) 1822 return true; 1823 break; 1824 case USB_VENDOR_ID_LOGITECH: 1825 if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST && 1826 hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST) 1827 return true; 1828 break; 1829 case USB_VENDOR_ID_SOUNDGRAPH: 1830 if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST && 1831 hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST) 1832 return true; 1833 break; 1834 case USB_VENDOR_ID_HANWANG: 1835 if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST && 1836 hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST) 1837 return true; 1838 break; 1839 } 1840 1841 if (hdev->type == HID_TYPE_USBMOUSE && 1842 hid_match_id(hdev, hid_mouse_ignore_list)) 1843 return true; 1844 1845 return !!hid_match_id(hdev, hid_ignore_list); 1846} 1847 1848int hid_add_device(struct hid_device *hdev) 1849{ 1850 static atomic_t id = ATOMIC_INIT(0); 1851 int ret; 1852 1853 if (WARN_ON(hdev->status & HID_STAT_ADDED)) 1854 return -EBUSY; 1855 1856 /* we need to kill them here, otherwise they will stay allocated to 1857 * wait for coming driver */ 1858 if (!(hdev->quirks & HID_QUIRK_NO_IGNORE) 1859 && (hid_ignore(hdev) || (hdev->quirks & HID_QUIRK_IGNORE))) 1860 return -ENODEV; 1861 1862 /* XXX hack, any other cleaner solution after the driver core 1863 * is converted to allow more than 20 bytes as the device name? */ 1864 dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus, 1865 hdev->vendor, hdev->product, atomic_inc_return(&id)); 1866 1867 hid_debug_register(hdev, dev_name(&hdev->dev)); 1868 ret = device_add(&hdev->dev); 1869 if (!ret) 1870 hdev->status |= HID_STAT_ADDED; 1871 else 1872 hid_debug_unregister(hdev); 1873 1874 return ret; 1875} 1876EXPORT_SYMBOL_GPL(hid_add_device); 1877 1878/** 1879 * hid_allocate_device - allocate new hid device descriptor 1880 * 1881 * Allocate and initialize hid device, so that hid_destroy_device might be 1882 * used to free it. 1883 * 1884 * New hid_device pointer is returned on success, otherwise ERR_PTR encoded 1885 * error value. 1886 */ 1887struct hid_device *hid_allocate_device(void) 1888{ 1889 struct hid_device *hdev; 1890 unsigned int i; 1891 int ret = -ENOMEM; 1892 1893 hdev = kzalloc(sizeof(*hdev), GFP_KERNEL); 1894 if (hdev == NULL) 1895 return ERR_PTR(ret); 1896 1897 device_initialize(&hdev->dev); 1898 hdev->dev.release = hid_device_release; 1899 hdev->dev.bus = &hid_bus_type; 1900 1901 hdev->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS, 1902 sizeof(struct hid_collection), GFP_KERNEL); 1903 if (hdev->collection == NULL) 1904 goto err; 1905 hdev->collection_size = HID_DEFAULT_NUM_COLLECTIONS; 1906 1907 for (i = 0; i < HID_REPORT_TYPES; i++) 1908 INIT_LIST_HEAD(&hdev->report_enum[i].report_list); 1909 1910 init_waitqueue_head(&hdev->debug_wait); 1911 INIT_LIST_HEAD(&hdev->debug_list); 1912 1913 return hdev; 1914err: 1915 put_device(&hdev->dev); 1916 return ERR_PTR(ret); 1917} 1918EXPORT_SYMBOL_GPL(hid_allocate_device); 1919 1920static void hid_remove_device(struct hid_device *hdev) 1921{ 1922 if (hdev->status & HID_STAT_ADDED) { 1923 device_del(&hdev->dev); 1924 hid_debug_unregister(hdev); 1925 hdev->status &= ~HID_STAT_ADDED; 1926 } 1927} 1928 1929/** 1930 * hid_destroy_device - free previously allocated device 1931 * 1932 * @hdev: hid device 1933 * 1934 * If you allocate hid_device through hid_allocate_device, you should ever 1935 * free by this function. 1936 */ 1937void hid_destroy_device(struct hid_device *hdev) 1938{ 1939 hid_remove_device(hdev); 1940 put_device(&hdev->dev); 1941} 1942EXPORT_SYMBOL_GPL(hid_destroy_device); 1943 1944int __hid_register_driver(struct hid_driver *hdrv, struct module *owner, 1945 const char *mod_name) 1946{ 1947 int ret; 1948 1949 hdrv->driver.name = hdrv->name; 1950 hdrv->driver.bus = &hid_bus_type; 1951 hdrv->driver.owner = owner; 1952 hdrv->driver.mod_name = mod_name; 1953 1954 INIT_LIST_HEAD(&hdrv->dyn_list); 1955 spin_lock_init(&hdrv->dyn_lock); 1956 1957 ret = driver_register(&hdrv->driver); 1958 if (ret) 1959 return ret; 1960 1961 ret = driver_create_file(&hdrv->driver, &driver_attr_new_id); 1962 if (ret) 1963 driver_unregister(&hdrv->driver); 1964 1965 return ret; 1966} 1967EXPORT_SYMBOL_GPL(__hid_register_driver); 1968 1969void hid_unregister_driver(struct hid_driver *hdrv) 1970{ 1971 driver_remove_file(&hdrv->driver, &driver_attr_new_id); 1972 driver_unregister(&hdrv->driver); 1973 hid_free_dynids(hdrv); 1974} 1975EXPORT_SYMBOL_GPL(hid_unregister_driver); 1976 1977int hid_check_keys_pressed(struct hid_device *hid) 1978{ 1979 struct hid_input *hidinput; 1980 int i; 1981 1982 if (!(hid->claimed & HID_CLAIMED_INPUT)) 1983 return 0; 1984 1985 list_for_each_entry(hidinput, &hid->inputs, list) { 1986 for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++) 1987 if (hidinput->input->key[i]) 1988 return 1; 1989 } 1990 1991 return 0; 1992} 1993 1994EXPORT_SYMBOL_GPL(hid_check_keys_pressed); 1995 1996static int __init hid_init(void) 1997{ 1998 int ret; 1999 2000 if (hid_debug) 2001 pr_warn("hid_debug is now used solely for parser and driver debugging.\n" 2002 "debugfs is now used for inspecting the device (report descriptor, reports)\n"); 2003 2004 ret = bus_register(&hid_bus_type); 2005 if (ret) { 2006 pr_err("can't register hid bus\n"); 2007 goto err; 2008 } 2009 2010 ret = hidraw_init(); 2011 if (ret) 2012 goto err_bus; 2013 2014 hid_debug_init(); 2015 2016 return 0; 2017err_bus: 2018 bus_unregister(&hid_bus_type); 2019err: 2020 return ret; 2021} 2022 2023static void __exit hid_exit(void) 2024{ 2025 hid_debug_exit(); 2026 hidraw_exit(); 2027 bus_unregister(&hid_bus_type); 2028} 2029 2030module_init(hid_init); 2031module_exit(hid_exit); 2032 2033MODULE_AUTHOR("Andreas Gal"); 2034MODULE_AUTHOR("Vojtech Pavlik"); 2035MODULE_AUTHOR("Jiri Kosina"); 2036MODULE_LICENSE(DRIVER_LICENSE); 2037 2038