hid-core.c revision 04561c5aa243c98cae93cde27e05740df787e692
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#include <linux/module.h> 18#include <linux/slab.h> 19#include <linux/init.h> 20#include <linux/kernel.h> 21#include <linux/list.h> 22#include <linux/mm.h> 23#include <linux/spinlock.h> 24#include <asm/unaligned.h> 25#include <asm/byteorder.h> 26#include <linux/input.h> 27#include <linux/wait.h> 28#include <linux/vmalloc.h> 29#include <linux/sched.h> 30 31#include <linux/hid.h> 32#include <linux/hiddev.h> 33#include <linux/hid-debug.h> 34#include <linux/hidraw.h> 35 36#include "hid-ids.h" 37 38/* 39 * Version Information 40 */ 41 42#define DRIVER_DESC "HID core driver" 43#define DRIVER_LICENSE "GPL" 44 45int hid_debug = 0; 46module_param_named(debug, hid_debug, int, 0600); 47MODULE_PARM_DESC(debug, "toggle HID debugging messages"); 48EXPORT_SYMBOL_GPL(hid_debug); 49 50/* 51 * Register a new report for a device. 52 */ 53 54struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id) 55{ 56 struct hid_report_enum *report_enum = device->report_enum + type; 57 struct hid_report *report; 58 59 if (report_enum->report_id_hash[id]) 60 return report_enum->report_id_hash[id]; 61 62 if (!(report = kzalloc(sizeof(struct hid_report), GFP_KERNEL))) 63 return NULL; 64 65 if (id != 0) 66 report_enum->numbered = 1; 67 68 report->id = id; 69 report->type = type; 70 report->size = 0; 71 report->device = device; 72 report_enum->report_id_hash[id] = report; 73 74 list_add_tail(&report->list, &report_enum->report_list); 75 76 return report; 77} 78EXPORT_SYMBOL_GPL(hid_register_report); 79 80/* 81 * Register a new field for this report. 82 */ 83 84static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values) 85{ 86 struct hid_field *field; 87 88 if (report->maxfield == HID_MAX_FIELDS) { 89 dbg_hid("too many fields in report\n"); 90 return NULL; 91 } 92 93 if (!(field = kzalloc(sizeof(struct hid_field) + usages * sizeof(struct hid_usage) 94 + values * sizeof(unsigned), GFP_KERNEL))) return NULL; 95 96 field->index = report->maxfield++; 97 report->field[field->index] = field; 98 field->usage = (struct hid_usage *)(field + 1); 99 field->value = (s32 *)(field->usage + usages); 100 field->report = report; 101 102 return field; 103} 104 105/* 106 * Open a collection. The type/usage is pushed on the stack. 107 */ 108 109static int open_collection(struct hid_parser *parser, unsigned type) 110{ 111 struct hid_collection *collection; 112 unsigned usage; 113 114 usage = parser->local.usage[0]; 115 116 if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) { 117 dbg_hid("collection stack overflow\n"); 118 return -1; 119 } 120 121 if (parser->device->maxcollection == parser->device->collection_size) { 122 collection = kmalloc(sizeof(struct hid_collection) * 123 parser->device->collection_size * 2, GFP_KERNEL); 124 if (collection == NULL) { 125 dbg_hid("failed to reallocate collection array\n"); 126 return -1; 127 } 128 memcpy(collection, parser->device->collection, 129 sizeof(struct hid_collection) * 130 parser->device->collection_size); 131 memset(collection + parser->device->collection_size, 0, 132 sizeof(struct hid_collection) * 133 parser->device->collection_size); 134 kfree(parser->device->collection); 135 parser->device->collection = collection; 136 parser->device->collection_size *= 2; 137 } 138 139 parser->collection_stack[parser->collection_stack_ptr++] = 140 parser->device->maxcollection; 141 142 collection = parser->device->collection + 143 parser->device->maxcollection++; 144 collection->type = type; 145 collection->usage = usage; 146 collection->level = parser->collection_stack_ptr - 1; 147 148 if (type == HID_COLLECTION_APPLICATION) 149 parser->device->maxapplication++; 150 151 return 0; 152} 153 154/* 155 * Close a collection. 156 */ 157 158static int close_collection(struct hid_parser *parser) 159{ 160 if (!parser->collection_stack_ptr) { 161 dbg_hid("collection stack underflow\n"); 162 return -1; 163 } 164 parser->collection_stack_ptr--; 165 return 0; 166} 167 168/* 169 * Climb up the stack, search for the specified collection type 170 * and return the usage. 171 */ 172 173static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type) 174{ 175 int n; 176 for (n = parser->collection_stack_ptr - 1; n >= 0; n--) 177 if (parser->device->collection[parser->collection_stack[n]].type == type) 178 return parser->device->collection[parser->collection_stack[n]].usage; 179 return 0; /* we know nothing about this usage type */ 180} 181 182/* 183 * Add a usage to the temporary parser table. 184 */ 185 186static int hid_add_usage(struct hid_parser *parser, unsigned usage) 187{ 188 if (parser->local.usage_index >= HID_MAX_USAGES) { 189 dbg_hid("usage index exceeded\n"); 190 return -1; 191 } 192 parser->local.usage[parser->local.usage_index] = usage; 193 parser->local.collection_index[parser->local.usage_index] = 194 parser->collection_stack_ptr ? 195 parser->collection_stack[parser->collection_stack_ptr - 1] : 0; 196 parser->local.usage_index++; 197 return 0; 198} 199 200/* 201 * Register a new field for this report. 202 */ 203 204static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags) 205{ 206 struct hid_report *report; 207 struct hid_field *field; 208 int usages; 209 unsigned offset; 210 int i; 211 212 if (!(report = hid_register_report(parser->device, report_type, parser->global.report_id))) { 213 dbg_hid("hid_register_report failed\n"); 214 return -1; 215 } 216 217 if (parser->global.logical_maximum < parser->global.logical_minimum) { 218 dbg_hid("logical range invalid %d %d\n", parser->global.logical_minimum, parser->global.logical_maximum); 219 return -1; 220 } 221 222 offset = report->size; 223 report->size += parser->global.report_size * parser->global.report_count; 224 225 if (!parser->local.usage_index) /* Ignore padding fields */ 226 return 0; 227 228 usages = max_t(int, parser->local.usage_index, parser->global.report_count); 229 230 if ((field = hid_register_field(report, usages, parser->global.report_count)) == NULL) 231 return 0; 232 233 field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL); 234 field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL); 235 field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION); 236 237 for (i = 0; i < usages; i++) { 238 int j = i; 239 /* Duplicate the last usage we parsed if we have excess values */ 240 if (i >= parser->local.usage_index) 241 j = parser->local.usage_index - 1; 242 field->usage[i].hid = parser->local.usage[j]; 243 field->usage[i].collection_index = 244 parser->local.collection_index[j]; 245 } 246 247 field->maxusage = usages; 248 field->flags = flags; 249 field->report_offset = offset; 250 field->report_type = report_type; 251 field->report_size = parser->global.report_size; 252 field->report_count = parser->global.report_count; 253 field->logical_minimum = parser->global.logical_minimum; 254 field->logical_maximum = parser->global.logical_maximum; 255 field->physical_minimum = parser->global.physical_minimum; 256 field->physical_maximum = parser->global.physical_maximum; 257 field->unit_exponent = parser->global.unit_exponent; 258 field->unit = parser->global.unit; 259 260 return 0; 261} 262 263/* 264 * Read data value from item. 265 */ 266 267static u32 item_udata(struct hid_item *item) 268{ 269 switch (item->size) { 270 case 1: return item->data.u8; 271 case 2: return item->data.u16; 272 case 4: return item->data.u32; 273 } 274 return 0; 275} 276 277static s32 item_sdata(struct hid_item *item) 278{ 279 switch (item->size) { 280 case 1: return item->data.s8; 281 case 2: return item->data.s16; 282 case 4: return item->data.s32; 283 } 284 return 0; 285} 286 287/* 288 * Process a global item. 289 */ 290 291static int hid_parser_global(struct hid_parser *parser, struct hid_item *item) 292{ 293 switch (item->tag) { 294 case HID_GLOBAL_ITEM_TAG_PUSH: 295 296 if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) { 297 dbg_hid("global enviroment stack overflow\n"); 298 return -1; 299 } 300 301 memcpy(parser->global_stack + parser->global_stack_ptr++, 302 &parser->global, sizeof(struct hid_global)); 303 return 0; 304 305 case HID_GLOBAL_ITEM_TAG_POP: 306 307 if (!parser->global_stack_ptr) { 308 dbg_hid("global enviroment stack underflow\n"); 309 return -1; 310 } 311 312 memcpy(&parser->global, parser->global_stack + 313 --parser->global_stack_ptr, sizeof(struct hid_global)); 314 return 0; 315 316 case HID_GLOBAL_ITEM_TAG_USAGE_PAGE: 317 parser->global.usage_page = item_udata(item); 318 return 0; 319 320 case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM: 321 parser->global.logical_minimum = item_sdata(item); 322 return 0; 323 324 case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM: 325 if (parser->global.logical_minimum < 0) 326 parser->global.logical_maximum = item_sdata(item); 327 else 328 parser->global.logical_maximum = item_udata(item); 329 return 0; 330 331 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM: 332 parser->global.physical_minimum = item_sdata(item); 333 return 0; 334 335 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM: 336 if (parser->global.physical_minimum < 0) 337 parser->global.physical_maximum = item_sdata(item); 338 else 339 parser->global.physical_maximum = item_udata(item); 340 return 0; 341 342 case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT: 343 parser->global.unit_exponent = item_sdata(item); 344 return 0; 345 346 case HID_GLOBAL_ITEM_TAG_UNIT: 347 parser->global.unit = item_udata(item); 348 return 0; 349 350 case HID_GLOBAL_ITEM_TAG_REPORT_SIZE: 351 parser->global.report_size = item_udata(item); 352 if (parser->global.report_size > 32) { 353 dbg_hid("invalid report_size %d\n", 354 parser->global.report_size); 355 return -1; 356 } 357 return 0; 358 359 case HID_GLOBAL_ITEM_TAG_REPORT_COUNT: 360 parser->global.report_count = item_udata(item); 361 if (parser->global.report_count > HID_MAX_USAGES) { 362 dbg_hid("invalid report_count %d\n", 363 parser->global.report_count); 364 return -1; 365 } 366 return 0; 367 368 case HID_GLOBAL_ITEM_TAG_REPORT_ID: 369 parser->global.report_id = item_udata(item); 370 if (parser->global.report_id == 0) { 371 dbg_hid("report_id 0 is invalid\n"); 372 return -1; 373 } 374 return 0; 375 376 default: 377 dbg_hid("unknown global tag 0x%x\n", item->tag); 378 return -1; 379 } 380} 381 382/* 383 * Process a local item. 384 */ 385 386static int hid_parser_local(struct hid_parser *parser, struct hid_item *item) 387{ 388 __u32 data; 389 unsigned n; 390 391 data = item_udata(item); 392 393 switch (item->tag) { 394 case HID_LOCAL_ITEM_TAG_DELIMITER: 395 396 if (data) { 397 /* 398 * We treat items before the first delimiter 399 * as global to all usage sets (branch 0). 400 * In the moment we process only these global 401 * items and the first delimiter set. 402 */ 403 if (parser->local.delimiter_depth != 0) { 404 dbg_hid("nested delimiters\n"); 405 return -1; 406 } 407 parser->local.delimiter_depth++; 408 parser->local.delimiter_branch++; 409 } else { 410 if (parser->local.delimiter_depth < 1) { 411 dbg_hid("bogus close delimiter\n"); 412 return -1; 413 } 414 parser->local.delimiter_depth--; 415 } 416 return 1; 417 418 case HID_LOCAL_ITEM_TAG_USAGE: 419 420 if (parser->local.delimiter_branch > 1) { 421 dbg_hid("alternative usage ignored\n"); 422 return 0; 423 } 424 425 if (item->size <= 2) 426 data = (parser->global.usage_page << 16) + data; 427 428 return hid_add_usage(parser, data); 429 430 case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM: 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 parser->local.usage_minimum = data; 441 return 0; 442 443 case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM: 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 for (n = parser->local.usage_minimum; n <= data; n++) 454 if (hid_add_usage(parser, n)) { 455 dbg_hid("hid_add_usage failed\n"); 456 return -1; 457 } 458 return 0; 459 460 default: 461 462 dbg_hid("unknown local item tag 0x%x\n", item->tag); 463 return 0; 464 } 465 return 0; 466} 467 468/* 469 * Process a main item. 470 */ 471 472static int hid_parser_main(struct hid_parser *parser, struct hid_item *item) 473{ 474 __u32 data; 475 int ret; 476 477 data = item_udata(item); 478 479 switch (item->tag) { 480 case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION: 481 ret = open_collection(parser, data & 0xff); 482 break; 483 case HID_MAIN_ITEM_TAG_END_COLLECTION: 484 ret = close_collection(parser); 485 break; 486 case HID_MAIN_ITEM_TAG_INPUT: 487 ret = hid_add_field(parser, HID_INPUT_REPORT, data); 488 break; 489 case HID_MAIN_ITEM_TAG_OUTPUT: 490 ret = hid_add_field(parser, HID_OUTPUT_REPORT, data); 491 break; 492 case HID_MAIN_ITEM_TAG_FEATURE: 493 ret = hid_add_field(parser, HID_FEATURE_REPORT, data); 494 break; 495 default: 496 dbg_hid("unknown main item tag 0x%x\n", item->tag); 497 ret = 0; 498 } 499 500 memset(&parser->local, 0, sizeof(parser->local)); /* Reset the local parser environment */ 501 502 return ret; 503} 504 505/* 506 * Process a reserved item. 507 */ 508 509static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item) 510{ 511 dbg_hid("reserved item type, tag 0x%x\n", item->tag); 512 return 0; 513} 514 515/* 516 * Free a report and all registered fields. The field->usage and 517 * field->value table's are allocated behind the field, so we need 518 * only to free(field) itself. 519 */ 520 521static void hid_free_report(struct hid_report *report) 522{ 523 unsigned n; 524 525 for (n = 0; n < report->maxfield; n++) 526 kfree(report->field[n]); 527 kfree(report); 528} 529 530/* 531 * Free a device structure, all reports, and all fields. 532 */ 533 534static void hid_device_release(struct device *dev) 535{ 536 struct hid_device *device = container_of(dev, struct hid_device, dev); 537 unsigned i, j; 538 539 for (i = 0; i < HID_REPORT_TYPES; i++) { 540 struct hid_report_enum *report_enum = device->report_enum + i; 541 542 for (j = 0; j < 256; j++) { 543 struct hid_report *report = report_enum->report_id_hash[j]; 544 if (report) 545 hid_free_report(report); 546 } 547 } 548 549 kfree(device->rdesc); 550 kfree(device->collection); 551 kfree(device); 552} 553 554/* 555 * Fetch a report description item from the data stream. We support long 556 * items, though they are not used yet. 557 */ 558 559static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item) 560{ 561 u8 b; 562 563 if ((end - start) <= 0) 564 return NULL; 565 566 b = *start++; 567 568 item->type = (b >> 2) & 3; 569 item->tag = (b >> 4) & 15; 570 571 if (item->tag == HID_ITEM_TAG_LONG) { 572 573 item->format = HID_ITEM_FORMAT_LONG; 574 575 if ((end - start) < 2) 576 return NULL; 577 578 item->size = *start++; 579 item->tag = *start++; 580 581 if ((end - start) < item->size) 582 return NULL; 583 584 item->data.longdata = start; 585 start += item->size; 586 return start; 587 } 588 589 item->format = HID_ITEM_FORMAT_SHORT; 590 item->size = b & 3; 591 592 switch (item->size) { 593 case 0: 594 return start; 595 596 case 1: 597 if ((end - start) < 1) 598 return NULL; 599 item->data.u8 = *start++; 600 return start; 601 602 case 2: 603 if ((end - start) < 2) 604 return NULL; 605 item->data.u16 = get_unaligned_le16(start); 606 start = (__u8 *)((__le16 *)start + 1); 607 return start; 608 609 case 3: 610 item->size++; 611 if ((end - start) < 4) 612 return NULL; 613 item->data.u32 = get_unaligned_le32(start); 614 start = (__u8 *)((__le32 *)start + 1); 615 return start; 616 } 617 618 return NULL; 619} 620 621/** 622 * hid_parse_report - parse device report 623 * 624 * @device: hid device 625 * @start: report start 626 * @size: report size 627 * 628 * Parse a report description into a hid_device structure. Reports are 629 * enumerated, fields are attached to these reports. 630 * 0 returned on success, otherwise nonzero error value. 631 */ 632int hid_parse_report(struct hid_device *device, __u8 *start, 633 unsigned size) 634{ 635 struct hid_parser *parser; 636 struct hid_item item; 637 __u8 *end; 638 int ret; 639 static int (*dispatch_type[])(struct hid_parser *parser, 640 struct hid_item *item) = { 641 hid_parser_main, 642 hid_parser_global, 643 hid_parser_local, 644 hid_parser_reserved 645 }; 646 647 if (device->driver->report_fixup) 648 start = device->driver->report_fixup(device, start, &size); 649 650 device->rdesc = kmemdup(start, size, GFP_KERNEL); 651 if (device->rdesc == NULL) 652 return -ENOMEM; 653 device->rsize = size; 654 655 parser = vmalloc(sizeof(struct hid_parser)); 656 if (!parser) { 657 ret = -ENOMEM; 658 goto err; 659 } 660 661 memset(parser, 0, sizeof(struct hid_parser)); 662 parser->device = device; 663 664 end = start + size; 665 ret = -EINVAL; 666 while ((start = fetch_item(start, end, &item)) != NULL) { 667 668 if (item.format != HID_ITEM_FORMAT_SHORT) { 669 dbg_hid("unexpected long global item\n"); 670 goto err; 671 } 672 673 if (dispatch_type[item.type](parser, &item)) { 674 dbg_hid("item %u %u %u %u parsing failed\n", 675 item.format, (unsigned)item.size, (unsigned)item.type, (unsigned)item.tag); 676 goto err; 677 } 678 679 if (start == end) { 680 if (parser->collection_stack_ptr) { 681 dbg_hid("unbalanced collection at end of report description\n"); 682 goto err; 683 } 684 if (parser->local.delimiter_depth) { 685 dbg_hid("unbalanced delimiter at end of report description\n"); 686 goto err; 687 } 688 vfree(parser); 689 return 0; 690 } 691 } 692 693 dbg_hid("item fetching failed at offset %d\n", (int)(end - start)); 694err: 695 vfree(parser); 696 return ret; 697} 698EXPORT_SYMBOL_GPL(hid_parse_report); 699 700/* 701 * Convert a signed n-bit integer to signed 32-bit integer. Common 702 * cases are done through the compiler, the screwed things has to be 703 * done by hand. 704 */ 705 706static s32 snto32(__u32 value, unsigned n) 707{ 708 switch (n) { 709 case 8: return ((__s8)value); 710 case 16: return ((__s16)value); 711 case 32: return ((__s32)value); 712 } 713 return value & (1 << (n - 1)) ? value | (-1 << n) : value; 714} 715 716/* 717 * Convert a signed 32-bit integer to a signed n-bit integer. 718 */ 719 720static u32 s32ton(__s32 value, unsigned n) 721{ 722 s32 a = value >> (n - 1); 723 if (a && a != -1) 724 return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1; 725 return value & ((1 << n) - 1); 726} 727 728/* 729 * Extract/implement a data field from/to a little endian report (bit array). 730 * 731 * Code sort-of follows HID spec: 732 * http://www.usb.org/developers/devclass_docs/HID1_11.pdf 733 * 734 * While the USB HID spec allows unlimited length bit fields in "report 735 * descriptors", most devices never use more than 16 bits. 736 * One model of UPS is claimed to report "LINEV" as a 32-bit field. 737 * Search linux-kernel and linux-usb-devel archives for "hid-core extract". 738 */ 739 740static __inline__ __u32 extract(__u8 *report, unsigned offset, unsigned n) 741{ 742 u64 x; 743 744 if (n > 32) 745 printk(KERN_WARNING "HID: extract() called with n (%d) > 32! (%s)\n", 746 n, current->comm); 747 748 report += offset >> 3; /* adjust byte index */ 749 offset &= 7; /* now only need bit offset into one byte */ 750 x = get_unaligned_le64(report); 751 x = (x >> offset) & ((1ULL << n) - 1); /* extract bit field */ 752 return (u32) x; 753} 754 755/* 756 * "implement" : set bits in a little endian bit stream. 757 * Same concepts as "extract" (see comments above). 758 * The data mangled in the bit stream remains in little endian 759 * order the whole time. It make more sense to talk about 760 * endianness of register values by considering a register 761 * a "cached" copy of the little endiad bit stream. 762 */ 763static __inline__ void implement(__u8 *report, unsigned offset, unsigned n, __u32 value) 764{ 765 u64 x; 766 u64 m = (1ULL << n) - 1; 767 768 if (n > 32) 769 printk(KERN_WARNING "HID: implement() called with n (%d) > 32! (%s)\n", 770 n, current->comm); 771 772 if (value > m) 773 printk(KERN_WARNING "HID: implement() called with too large value %d! (%s)\n", 774 value, current->comm); 775 WARN_ON(value > m); 776 value &= m; 777 778 report += offset >> 3; 779 offset &= 7; 780 781 x = get_unaligned_le64(report); 782 x &= ~(m << offset); 783 x |= ((u64)value) << offset; 784 put_unaligned_le64(x, report); 785} 786 787/* 788 * Search an array for a value. 789 */ 790 791static __inline__ int search(__s32 *array, __s32 value, unsigned n) 792{ 793 while (n--) { 794 if (*array++ == value) 795 return 0; 796 } 797 return -1; 798} 799 800/** 801 * hid_match_report - check if driver's raw_event should be called 802 * 803 * @hid: hid device 804 * @report_type: type to match against 805 * 806 * compare hid->driver->report_table->report_type to report->type 807 */ 808static int hid_match_report(struct hid_device *hid, struct hid_report *report) 809{ 810 const struct hid_report_id *id = hid->driver->report_table; 811 812 if (!id) /* NULL means all */ 813 return 1; 814 815 for (; id->report_type != HID_TERMINATOR; id++) 816 if (id->report_type == HID_ANY_ID || 817 id->report_type == report->type) 818 return 1; 819 return 0; 820} 821 822/** 823 * hid_match_usage - check if driver's event should be called 824 * 825 * @hid: hid device 826 * @usage: usage to match against 827 * 828 * compare hid->driver->usage_table->usage_{type,code} to 829 * usage->usage_{type,code} 830 */ 831static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage) 832{ 833 const struct hid_usage_id *id = hid->driver->usage_table; 834 835 if (!id) /* NULL means all */ 836 return 1; 837 838 for (; id->usage_type != HID_ANY_ID - 1; id++) 839 if ((id->usage_hid == HID_ANY_ID || 840 id->usage_hid == usage->hid) && 841 (id->usage_type == HID_ANY_ID || 842 id->usage_type == usage->type) && 843 (id->usage_code == HID_ANY_ID || 844 id->usage_code == usage->code)) 845 return 1; 846 return 0; 847} 848 849static void hid_process_event(struct hid_device *hid, struct hid_field *field, 850 struct hid_usage *usage, __s32 value, int interrupt) 851{ 852 struct hid_driver *hdrv = hid->driver; 853 int ret; 854 855 hid_dump_input(hid, usage, value); 856 857 if (hdrv && hdrv->event && hid_match_usage(hid, usage)) { 858 ret = hdrv->event(hid, field, usage, value); 859 if (ret != 0) { 860 if (ret < 0) 861 dbg_hid("%s's event failed with %d\n", 862 hdrv->name, ret); 863 return; 864 } 865 } 866 867 if (hid->claimed & HID_CLAIMED_INPUT) 868 hidinput_hid_event(hid, field, usage, value); 869 if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event) 870 hid->hiddev_hid_event(hid, field, usage, value); 871} 872 873/* 874 * Analyse a received field, and fetch the data from it. The field 875 * content is stored for next report processing (we do differential 876 * reporting to the layer). 877 */ 878 879static void hid_input_field(struct hid_device *hid, struct hid_field *field, 880 __u8 *data, int interrupt) 881{ 882 unsigned n; 883 unsigned count = field->report_count; 884 unsigned offset = field->report_offset; 885 unsigned size = field->report_size; 886 __s32 min = field->logical_minimum; 887 __s32 max = field->logical_maximum; 888 __s32 *value; 889 890 if (!(value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC))) 891 return; 892 893 for (n = 0; n < count; n++) { 894 895 value[n] = min < 0 ? snto32(extract(data, offset + n * size, size), size) : 896 extract(data, offset + n * size, size); 897 898 if (!(field->flags & HID_MAIN_ITEM_VARIABLE) /* Ignore report if ErrorRollOver */ 899 && value[n] >= min && value[n] <= max 900 && field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1) 901 goto exit; 902 } 903 904 for (n = 0; n < count; n++) { 905 906 if (HID_MAIN_ITEM_VARIABLE & field->flags) { 907 hid_process_event(hid, field, &field->usage[n], value[n], interrupt); 908 continue; 909 } 910 911 if (field->value[n] >= min && field->value[n] <= max 912 && field->usage[field->value[n] - min].hid 913 && search(value, field->value[n], count)) 914 hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt); 915 916 if (value[n] >= min && value[n] <= max 917 && field->usage[value[n] - min].hid 918 && search(field->value, value[n], count)) 919 hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt); 920 } 921 922 memcpy(field->value, value, count * sizeof(__s32)); 923exit: 924 kfree(value); 925} 926 927/* 928 * Output the field into the report. 929 */ 930 931static void hid_output_field(struct hid_field *field, __u8 *data) 932{ 933 unsigned count = field->report_count; 934 unsigned offset = field->report_offset; 935 unsigned size = field->report_size; 936 unsigned n; 937 938 for (n = 0; n < count; n++) { 939 if (field->logical_minimum < 0) /* signed values */ 940 implement(data, offset + n * size, size, s32ton(field->value[n], size)); 941 else /* unsigned values */ 942 implement(data, offset + n * size, size, field->value[n]); 943 } 944} 945 946/* 947 * Create a report. 948 */ 949 950void hid_output_report(struct hid_report *report, __u8 *data) 951{ 952 unsigned n; 953 954 if (report->id > 0) 955 *data++ = report->id; 956 957 memset(data, 0, ((report->size - 1) >> 3) + 1); 958 for (n = 0; n < report->maxfield; n++) 959 hid_output_field(report->field[n], data); 960} 961EXPORT_SYMBOL_GPL(hid_output_report); 962 963/* 964 * Set a field value. The report this field belongs to has to be 965 * created and transferred to the device, to set this value in the 966 * device. 967 */ 968 969int hid_set_field(struct hid_field *field, unsigned offset, __s32 value) 970{ 971 unsigned size = field->report_size; 972 973 hid_dump_input(field->report->device, field->usage + offset, value); 974 975 if (offset >= field->report_count) { 976 dbg_hid("offset (%d) exceeds report_count (%d)\n", offset, field->report_count); 977 return -1; 978 } 979 if (field->logical_minimum < 0) { 980 if (value != snto32(s32ton(value, size), size)) { 981 dbg_hid("value %d is out of range\n", value); 982 return -1; 983 } 984 } 985 field->value[offset] = value; 986 return 0; 987} 988EXPORT_SYMBOL_GPL(hid_set_field); 989 990static struct hid_report *hid_get_report(struct hid_report_enum *report_enum, 991 const u8 *data) 992{ 993 struct hid_report *report; 994 unsigned int n = 0; /* Normally report number is 0 */ 995 996 /* Device uses numbered reports, data[0] is report number */ 997 if (report_enum->numbered) 998 n = *data; 999 1000 report = report_enum->report_id_hash[n]; 1001 if (report == NULL) 1002 dbg_hid("undefined report_id %u received\n", n); 1003 1004 return report; 1005} 1006 1007void hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size, 1008 int interrupt) 1009{ 1010 struct hid_report_enum *report_enum = hid->report_enum + type; 1011 struct hid_report *report; 1012 unsigned int a; 1013 int rsize, csize = size; 1014 u8 *cdata = data; 1015 1016 report = hid_get_report(report_enum, data); 1017 if (!report) 1018 return; 1019 1020 if (report_enum->numbered) { 1021 cdata++; 1022 csize--; 1023 } 1024 1025 rsize = ((report->size - 1) >> 3) + 1; 1026 1027 if (csize < rsize) { 1028 dbg_hid("report %d is too short, (%d < %d)\n", report->id, 1029 csize, rsize); 1030 memset(cdata + csize, 0, rsize - csize); 1031 } 1032 1033 if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event) 1034 hid->hiddev_report_event(hid, report); 1035 if (hid->claimed & HID_CLAIMED_HIDRAW) 1036 hidraw_report_event(hid, data, size); 1037 1038 for (a = 0; a < report->maxfield; a++) 1039 hid_input_field(hid, report->field[a], cdata, interrupt); 1040 1041 if (hid->claimed & HID_CLAIMED_INPUT) 1042 hidinput_report_event(hid, report); 1043} 1044EXPORT_SYMBOL_GPL(hid_report_raw_event); 1045 1046/** 1047 * hid_input_report - report data from lower layer (usb, bt...) 1048 * 1049 * @hid: hid device 1050 * @type: HID report type (HID_*_REPORT) 1051 * @data: report contents 1052 * @size: size of data parameter 1053 * @interrupt: distinguish between interrupt and control transfers 1054 * 1055 * This is data entry for lower layers. 1056 */ 1057int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt) 1058{ 1059 struct hid_report_enum *report_enum; 1060 struct hid_driver *hdrv; 1061 struct hid_report *report; 1062 char *buf; 1063 unsigned int i; 1064 int ret; 1065 1066 if (!hid || !hid->driver) 1067 return -ENODEV; 1068 report_enum = hid->report_enum + type; 1069 hdrv = hid->driver; 1070 1071 if (!size) { 1072 dbg_hid("empty report\n"); 1073 return -1; 1074 } 1075 1076 buf = kmalloc(sizeof(char) * HID_DEBUG_BUFSIZE, GFP_ATOMIC); 1077 1078 if (!buf) 1079 goto nomem; 1080 1081 /* dump the report */ 1082 snprintf(buf, HID_DEBUG_BUFSIZE - 1, 1083 "\nreport (size %u) (%snumbered) = ", size, report_enum->numbered ? "" : "un"); 1084 hid_debug_event(hid, buf); 1085 1086 for (i = 0; i < size; i++) { 1087 snprintf(buf, HID_DEBUG_BUFSIZE - 1, 1088 " %02x", data[i]); 1089 hid_debug_event(hid, buf); 1090 } 1091 hid_debug_event(hid, "\n"); 1092 kfree(buf); 1093 1094nomem: 1095 report = hid_get_report(report_enum, data); 1096 1097 if (!report) 1098 return -1; 1099 1100 if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) { 1101 ret = hdrv->raw_event(hid, report, data, size); 1102 if (ret != 0) 1103 return ret < 0 ? ret : 0; 1104 } 1105 1106 hid_report_raw_event(hid, type, data, size, interrupt); 1107 1108 return 0; 1109} 1110EXPORT_SYMBOL_GPL(hid_input_report); 1111 1112static bool hid_match_one_id(struct hid_device *hdev, 1113 const struct hid_device_id *id) 1114{ 1115 return id->bus == hdev->bus && 1116 (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) && 1117 (id->product == HID_ANY_ID || id->product == hdev->product); 1118} 1119 1120static const struct hid_device_id *hid_match_id(struct hid_device *hdev, 1121 const struct hid_device_id *id) 1122{ 1123 for (; id->bus; id++) 1124 if (hid_match_one_id(hdev, id)) 1125 return id; 1126 1127 return NULL; 1128} 1129 1130static const struct hid_device_id hid_hiddev_list[] = { 1131 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) }, 1132 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) }, 1133 { } 1134}; 1135 1136static bool hid_hiddev(struct hid_device *hdev) 1137{ 1138 return !!hid_match_id(hdev, hid_hiddev_list); 1139} 1140 1141int hid_connect(struct hid_device *hdev, unsigned int connect_mask) 1142{ 1143 static const char *types[] = { "Device", "Pointer", "Mouse", "Device", 1144 "Joystick", "Gamepad", "Keyboard", "Keypad", 1145 "Multi-Axis Controller" 1146 }; 1147 const char *type, *bus; 1148 char buf[64]; 1149 unsigned int i; 1150 int len; 1151 1152 if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE) 1153 connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV); 1154 if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE) 1155 connect_mask |= HID_CONNECT_HIDINPUT_FORCE; 1156 if (hdev->bus != BUS_USB) 1157 connect_mask &= ~HID_CONNECT_HIDDEV; 1158 if (hid_hiddev(hdev)) 1159 connect_mask |= HID_CONNECT_HIDDEV_FORCE; 1160 1161 if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev, 1162 connect_mask & HID_CONNECT_HIDINPUT_FORCE)) 1163 hdev->claimed |= HID_CLAIMED_INPUT; 1164 if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect && 1165 !hdev->hiddev_connect(hdev, 1166 connect_mask & HID_CONNECT_HIDDEV_FORCE)) 1167 hdev->claimed |= HID_CLAIMED_HIDDEV; 1168 if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev)) 1169 hdev->claimed |= HID_CLAIMED_HIDRAW; 1170 1171 if (!hdev->claimed) { 1172 dev_err(&hdev->dev, "claimed by neither input, hiddev nor " 1173 "hidraw\n"); 1174 return -ENODEV; 1175 } 1176 1177 if ((hdev->claimed & HID_CLAIMED_INPUT) && 1178 (connect_mask & HID_CONNECT_FF) && hdev->ff_init) 1179 hdev->ff_init(hdev); 1180 1181 len = 0; 1182 if (hdev->claimed & HID_CLAIMED_INPUT) 1183 len += sprintf(buf + len, "input"); 1184 if (hdev->claimed & HID_CLAIMED_HIDDEV) 1185 len += sprintf(buf + len, "%shiddev%d", len ? "," : "", 1186 hdev->minor); 1187 if (hdev->claimed & HID_CLAIMED_HIDRAW) 1188 len += sprintf(buf + len, "%shidraw%d", len ? "," : "", 1189 ((struct hidraw *)hdev->hidraw)->minor); 1190 1191 type = "Device"; 1192 for (i = 0; i < hdev->maxcollection; i++) { 1193 struct hid_collection *col = &hdev->collection[i]; 1194 if (col->type == HID_COLLECTION_APPLICATION && 1195 (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK && 1196 (col->usage & 0xffff) < ARRAY_SIZE(types)) { 1197 type = types[col->usage & 0xffff]; 1198 break; 1199 } 1200 } 1201 1202 switch (hdev->bus) { 1203 case BUS_USB: 1204 bus = "USB"; 1205 break; 1206 case BUS_BLUETOOTH: 1207 bus = "BLUETOOTH"; 1208 break; 1209 default: 1210 bus = "<UNKNOWN>"; 1211 } 1212 1213 dev_info(&hdev->dev, "%s: %s HID v%x.%02x %s [%s] on %s\n", 1214 buf, bus, hdev->version >> 8, hdev->version & 0xff, 1215 type, hdev->name, hdev->phys); 1216 1217 return 0; 1218} 1219EXPORT_SYMBOL_GPL(hid_connect); 1220 1221void hid_disconnect(struct hid_device *hdev) 1222{ 1223 if (hdev->claimed & HID_CLAIMED_INPUT) 1224 hidinput_disconnect(hdev); 1225 if (hdev->claimed & HID_CLAIMED_HIDDEV) 1226 hdev->hiddev_disconnect(hdev); 1227 if (hdev->claimed & HID_CLAIMED_HIDRAW) 1228 hidraw_disconnect(hdev); 1229} 1230EXPORT_SYMBOL_GPL(hid_disconnect); 1231 1232/* a list of devices for which there is a specialized driver on HID bus */ 1233static const struct hid_device_id hid_blacklist[] = { 1234 { HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M1968) }, 1235 { HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M2256) }, 1236 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) }, 1237 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) }, 1238 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) }, 1239#if defined(CONFIG_HID_ACRUX_FF) || defined(CONFIG_HID_ACRUX_FF_MODULE) 1240 { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) }, 1241#endif 1242 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ATV_IRCONTROL) }, 1243 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) }, 1244 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) }, 1245 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) }, 1246 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) }, 1247 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) }, 1248 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) }, 1249 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) }, 1250 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) }, 1251 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) }, 1252 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) }, 1253 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) }, 1254 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) }, 1255 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) }, 1256 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) }, 1257 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) }, 1258 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) }, 1259 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) }, 1260 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) }, 1261 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) }, 1262 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) }, 1263 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) }, 1264 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) }, 1265 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) }, 1266 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) }, 1267 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) }, 1268 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) }, 1269 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) }, 1270 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) }, 1271 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) }, 1272 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) }, 1273 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) }, 1274 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) }, 1275 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) }, 1276 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) }, 1277 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) }, 1278 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) }, 1279 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) }, 1280 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) }, 1281 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) }, 1282 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) }, 1283 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) }, 1284 { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_T91MT) }, 1285 { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) }, 1286 { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) }, 1287 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) }, 1288 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) }, 1289 { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH) }, 1290 { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) }, 1291 { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) }, 1292 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) }, 1293 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) }, 1294 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) }, 1295 { HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) }, 1296 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) }, 1297 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) }, 1298 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) }, 1299 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) }, 1300 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) }, 1301 { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH) }, 1302 { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1) }, 1303 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) }, 1304 { HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) }, 1305 { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) }, 1306 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) }, 1307 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) }, 1308 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) }, 1309 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) }, 1310 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) }, 1311 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) }, 1312 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) }, 1313 { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) }, 1314 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) }, 1315 { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) }, 1316 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) }, 1317 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) }, 1318 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) }, 1319 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) }, 1320 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) }, 1321 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) }, 1322 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) }, 1323 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) }, 1324 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) }, 1325 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) }, 1326 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) }, 1327 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) }, 1328 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) }, 1329 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) }, 1330 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) }, 1331 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) }, 1332 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) }, 1333 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) }, 1334 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) }, 1335 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) }, 1336 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) }, 1337 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) }, 1338 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) }, 1339 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) }, 1340 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) }, 1341 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) }, 1342 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) }, 1343 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) }, 1344 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) }, 1345 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) }, 1346 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) }, 1347 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) }, 1348 { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) }, 1349 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) }, 1350 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) }, 1351 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) }, 1352 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) }, 1353 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) }, 1354 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) }, 1355 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) }, 1356 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) }, 1357 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) }, 1358 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) }, 1359 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) }, 1360 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) }, 1361 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) }, 1362 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) }, 1363 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) }, 1364 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) }, 1365 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) }, 1366 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) }, 1367 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) }, 1368 { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) }, 1369 { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) }, 1370 { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) }, 1371 { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN) }, 1372 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) }, 1373 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) }, 1374 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) }, 1375 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) }, 1376 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) }, 1377 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) }, 1378 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) }, 1379 { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM, USB_DEVICE_ID_MTP) }, 1380 { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, USB_DEVICE_ID_MTP_STM) }, 1381 { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX, USB_DEVICE_ID_MTP_SITRONIX) }, 1382 { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) }, 1383 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) }, 1384 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) }, 1385 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) }, 1386 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) }, 1387 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) }, 1388 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) }, 1389 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) }, 1390 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) }, 1391 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) }, 1392 { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) }, 1393 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) }, 1394 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) }, 1395 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) }, 1396 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) }, 1397 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) }, 1398 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) }, 1399 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) }, 1400 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) }, 1401 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) }, 1402 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) }, 1403 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) }, 1404 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) }, 1405 { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) }, 1406 1407 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) }, 1408 { } 1409}; 1410 1411struct hid_dynid { 1412 struct list_head list; 1413 struct hid_device_id id; 1414}; 1415 1416/** 1417 * store_new_id - add a new HID device ID to this driver and re-probe devices 1418 * @driver: target device driver 1419 * @buf: buffer for scanning device ID data 1420 * @count: input size 1421 * 1422 * Adds a new dynamic hid device ID to this driver, 1423 * and causes the driver to probe for all devices again. 1424 */ 1425static ssize_t store_new_id(struct device_driver *drv, const char *buf, 1426 size_t count) 1427{ 1428 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver); 1429 struct hid_dynid *dynid; 1430 __u32 bus, vendor, product; 1431 unsigned long driver_data = 0; 1432 int ret; 1433 1434 ret = sscanf(buf, "%x %x %x %lx", 1435 &bus, &vendor, &product, &driver_data); 1436 if (ret < 3) 1437 return -EINVAL; 1438 1439 dynid = kzalloc(sizeof(*dynid), GFP_KERNEL); 1440 if (!dynid) 1441 return -ENOMEM; 1442 1443 dynid->id.bus = bus; 1444 dynid->id.vendor = vendor; 1445 dynid->id.product = product; 1446 dynid->id.driver_data = driver_data; 1447 1448 spin_lock(&hdrv->dyn_lock); 1449 list_add_tail(&dynid->list, &hdrv->dyn_list); 1450 spin_unlock(&hdrv->dyn_lock); 1451 1452 ret = 0; 1453 if (get_driver(&hdrv->driver)) { 1454 ret = driver_attach(&hdrv->driver); 1455 put_driver(&hdrv->driver); 1456 } 1457 1458 return ret ? : count; 1459} 1460static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id); 1461 1462static void hid_free_dynids(struct hid_driver *hdrv) 1463{ 1464 struct hid_dynid *dynid, *n; 1465 1466 spin_lock(&hdrv->dyn_lock); 1467 list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) { 1468 list_del(&dynid->list); 1469 kfree(dynid); 1470 } 1471 spin_unlock(&hdrv->dyn_lock); 1472} 1473 1474static const struct hid_device_id *hid_match_device(struct hid_device *hdev, 1475 struct hid_driver *hdrv) 1476{ 1477 struct hid_dynid *dynid; 1478 1479 spin_lock(&hdrv->dyn_lock); 1480 list_for_each_entry(dynid, &hdrv->dyn_list, list) { 1481 if (hid_match_one_id(hdev, &dynid->id)) { 1482 spin_unlock(&hdrv->dyn_lock); 1483 return &dynid->id; 1484 } 1485 } 1486 spin_unlock(&hdrv->dyn_lock); 1487 1488 return hid_match_id(hdev, hdrv->id_table); 1489} 1490 1491static int hid_bus_match(struct device *dev, struct device_driver *drv) 1492{ 1493 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver); 1494 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 1495 1496 if (!hid_match_device(hdev, hdrv)) 1497 return 0; 1498 1499 /* generic wants all non-blacklisted */ 1500 if (!strncmp(hdrv->name, "generic-", 8)) 1501 return !hid_match_id(hdev, hid_blacklist); 1502 1503 return 1; 1504} 1505 1506static int hid_device_probe(struct device *dev) 1507{ 1508 struct hid_driver *hdrv = container_of(dev->driver, 1509 struct hid_driver, driver); 1510 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 1511 const struct hid_device_id *id; 1512 int ret = 0; 1513 1514 if (!hdev->driver) { 1515 id = hid_match_device(hdev, hdrv); 1516 if (id == NULL) 1517 return -ENODEV; 1518 1519 hdev->driver = hdrv; 1520 if (hdrv->probe) { 1521 ret = hdrv->probe(hdev, id); 1522 } else { /* default probe */ 1523 ret = hid_parse(hdev); 1524 if (!ret) 1525 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); 1526 } 1527 if (ret) 1528 hdev->driver = NULL; 1529 } 1530 return ret; 1531} 1532 1533static int hid_device_remove(struct device *dev) 1534{ 1535 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 1536 struct hid_driver *hdrv = hdev->driver; 1537 1538 if (hdrv) { 1539 if (hdrv->remove) 1540 hdrv->remove(hdev); 1541 else /* default remove */ 1542 hid_hw_stop(hdev); 1543 hdev->driver = NULL; 1544 } 1545 1546 return 0; 1547} 1548 1549static int hid_uevent(struct device *dev, struct kobj_uevent_env *env) 1550{ 1551 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 1552 1553 if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X", 1554 hdev->bus, hdev->vendor, hdev->product)) 1555 return -ENOMEM; 1556 1557 if (add_uevent_var(env, "HID_NAME=%s", hdev->name)) 1558 return -ENOMEM; 1559 1560 if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys)) 1561 return -ENOMEM; 1562 1563 if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq)) 1564 return -ENOMEM; 1565 1566 if (add_uevent_var(env, "MODALIAS=hid:b%04Xv%08Xp%08X", 1567 hdev->bus, hdev->vendor, hdev->product)) 1568 return -ENOMEM; 1569 1570 return 0; 1571} 1572 1573static struct bus_type hid_bus_type = { 1574 .name = "hid", 1575 .match = hid_bus_match, 1576 .probe = hid_device_probe, 1577 .remove = hid_device_remove, 1578 .uevent = hid_uevent, 1579}; 1580 1581/* a list of devices that shouldn't be handled by HID core at all */ 1582static const struct hid_device_id hid_ignore_list[] = { 1583 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) }, 1584 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) }, 1585 { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) }, 1586 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) }, 1587 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) }, 1588 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) }, 1589 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) }, 1590 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) }, 1591 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) }, 1592 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) }, 1593 { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) }, 1594 { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) }, 1595 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)}, 1596 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)}, 1597 { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) }, 1598 { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) }, 1599 { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) }, 1600 { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) }, 1601 { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) }, 1602 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) }, 1603 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) }, 1604 { HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) }, 1605 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) }, 1606 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) }, 1607 { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) }, 1608 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) }, 1609 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) }, 1610 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) }, 1611 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) }, 1612 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0003) }, 1613 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) }, 1614 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) }, 1615 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) }, 1616 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) }, 1617 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) }, 1618 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) }, 1619 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) }, 1620 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) }, 1621 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) }, 1622 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) }, 1623 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) }, 1624 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) }, 1625 { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) }, 1626 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) }, 1627 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) }, 1628 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) }, 1629 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) }, 1630 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) }, 1631 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) }, 1632 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) }, 1633 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) }, 1634 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) }, 1635 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) }, 1636 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) }, 1637 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) }, 1638 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) }, 1639 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) }, 1640 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) }, 1641 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) }, 1642 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) }, 1643 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) }, 1644 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) }, 1645 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) }, 1646 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) }, 1647 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) }, 1648 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) }, 1649 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) }, 1650 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) }, 1651 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) }, 1652 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) }, 1653 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) }, 1654 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) }, 1655 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) }, 1656 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) }, 1657 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) }, 1658 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) }, 1659 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) }, 1660 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) }, 1661 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) }, 1662 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) }, 1663 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) }, 1664 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) }, 1665 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) }, 1666 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) }, 1667 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) }, 1668 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) }, 1669 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) }, 1670 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) }, 1671 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) }, 1672 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) }, 1673 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) }, 1674 { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) }, 1675 { HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_JESS_YUREX) }, 1676 { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) }, 1677 { HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) }, 1678 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) }, 1679 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) }, 1680 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) }, 1681 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) }, 1682 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) }, 1683 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) }, 1684 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) }, 1685 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) }, 1686 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY1) }, 1687 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) }, 1688 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) }, 1689 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) }, 1690 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) }, 1691 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) }, 1692 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) }, 1693 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) }, 1694 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) }, 1695 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) }, 1696 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) }, 1697 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) }, 1698 { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) }, 1699 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) }, 1700 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) }, 1701 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) }, 1702 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) }, 1703 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) }, 1704 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) }, 1705 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) }, 1706 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) }, 1707 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) }, 1708 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) }, 1709 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) }, 1710 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) }, 1711 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) }, 1712 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) }, 1713 { HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) }, 1714 { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) }, 1715 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) }, 1716 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) }, 1717 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) }, 1718 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) }, 1719 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) }, 1720 { HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) }, 1721 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) }, 1722 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) }, 1723 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) }, 1724 { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) }, 1725 { } 1726}; 1727 1728/** 1729 * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer 1730 * 1731 * There are composite devices for which we want to ignore only a certain 1732 * interface. This is a list of devices for which only the mouse interface will 1733 * be ignored. This allows a dedicated driver to take care of the interface. 1734 */ 1735static const struct hid_device_id hid_mouse_ignore_list[] = { 1736 /* appletouch driver */ 1737 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) }, 1738 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) }, 1739 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) }, 1740 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) }, 1741 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) }, 1742 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) }, 1743 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) }, 1744 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) }, 1745 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) }, 1746 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) }, 1747 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) }, 1748 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) }, 1749 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) }, 1750 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) }, 1751 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) }, 1752 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) }, 1753 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) }, 1754 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) }, 1755 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) }, 1756 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) }, 1757 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) }, 1758 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) }, 1759 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) }, 1760 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) }, 1761 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) }, 1762 { } 1763}; 1764 1765static bool hid_ignore(struct hid_device *hdev) 1766{ 1767 switch (hdev->vendor) { 1768 case USB_VENDOR_ID_CODEMERCS: 1769 /* ignore all Code Mercenaries IOWarrior devices */ 1770 if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST && 1771 hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST) 1772 return true; 1773 break; 1774 case USB_VENDOR_ID_LOGITECH: 1775 if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST && 1776 hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST) 1777 return true; 1778 break; 1779 case USB_VENDOR_ID_SOUNDGRAPH: 1780 if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST && 1781 hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST) 1782 return true; 1783 break; 1784 } 1785 1786 if (hdev->type == HID_TYPE_USBMOUSE && 1787 hid_match_id(hdev, hid_mouse_ignore_list)) 1788 return true; 1789 1790 return !!hid_match_id(hdev, hid_ignore_list); 1791} 1792 1793int hid_add_device(struct hid_device *hdev) 1794{ 1795 static atomic_t id = ATOMIC_INIT(0); 1796 int ret; 1797 1798 if (WARN_ON(hdev->status & HID_STAT_ADDED)) 1799 return -EBUSY; 1800 1801 /* we need to kill them here, otherwise they will stay allocated to 1802 * wait for coming driver */ 1803 if (!(hdev->quirks & HID_QUIRK_NO_IGNORE) 1804 && (hid_ignore(hdev) || (hdev->quirks & HID_QUIRK_IGNORE))) 1805 return -ENODEV; 1806 1807 /* XXX hack, any other cleaner solution after the driver core 1808 * is converted to allow more than 20 bytes as the device name? */ 1809 dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus, 1810 hdev->vendor, hdev->product, atomic_inc_return(&id)); 1811 1812 hid_debug_register(hdev, dev_name(&hdev->dev)); 1813 ret = device_add(&hdev->dev); 1814 if (!ret) 1815 hdev->status |= HID_STAT_ADDED; 1816 else 1817 hid_debug_unregister(hdev); 1818 1819 return ret; 1820} 1821EXPORT_SYMBOL_GPL(hid_add_device); 1822 1823/** 1824 * hid_allocate_device - allocate new hid device descriptor 1825 * 1826 * Allocate and initialize hid device, so that hid_destroy_device might be 1827 * used to free it. 1828 * 1829 * New hid_device pointer is returned on success, otherwise ERR_PTR encoded 1830 * error value. 1831 */ 1832struct hid_device *hid_allocate_device(void) 1833{ 1834 struct hid_device *hdev; 1835 unsigned int i; 1836 int ret = -ENOMEM; 1837 1838 hdev = kzalloc(sizeof(*hdev), GFP_KERNEL); 1839 if (hdev == NULL) 1840 return ERR_PTR(ret); 1841 1842 device_initialize(&hdev->dev); 1843 hdev->dev.release = hid_device_release; 1844 hdev->dev.bus = &hid_bus_type; 1845 1846 hdev->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS, 1847 sizeof(struct hid_collection), GFP_KERNEL); 1848 if (hdev->collection == NULL) 1849 goto err; 1850 hdev->collection_size = HID_DEFAULT_NUM_COLLECTIONS; 1851 1852 for (i = 0; i < HID_REPORT_TYPES; i++) 1853 INIT_LIST_HEAD(&hdev->report_enum[i].report_list); 1854 1855 init_waitqueue_head(&hdev->debug_wait); 1856 INIT_LIST_HEAD(&hdev->debug_list); 1857 1858 return hdev; 1859err: 1860 put_device(&hdev->dev); 1861 return ERR_PTR(ret); 1862} 1863EXPORT_SYMBOL_GPL(hid_allocate_device); 1864 1865static void hid_remove_device(struct hid_device *hdev) 1866{ 1867 if (hdev->status & HID_STAT_ADDED) { 1868 device_del(&hdev->dev); 1869 hid_debug_unregister(hdev); 1870 hdev->status &= ~HID_STAT_ADDED; 1871 } 1872} 1873 1874/** 1875 * hid_destroy_device - free previously allocated device 1876 * 1877 * @hdev: hid device 1878 * 1879 * If you allocate hid_device through hid_allocate_device, you should ever 1880 * free by this function. 1881 */ 1882void hid_destroy_device(struct hid_device *hdev) 1883{ 1884 hid_remove_device(hdev); 1885 put_device(&hdev->dev); 1886} 1887EXPORT_SYMBOL_GPL(hid_destroy_device); 1888 1889int __hid_register_driver(struct hid_driver *hdrv, struct module *owner, 1890 const char *mod_name) 1891{ 1892 int ret; 1893 1894 hdrv->driver.name = hdrv->name; 1895 hdrv->driver.bus = &hid_bus_type; 1896 hdrv->driver.owner = owner; 1897 hdrv->driver.mod_name = mod_name; 1898 1899 INIT_LIST_HEAD(&hdrv->dyn_list); 1900 spin_lock_init(&hdrv->dyn_lock); 1901 1902 ret = driver_register(&hdrv->driver); 1903 if (ret) 1904 return ret; 1905 1906 ret = driver_create_file(&hdrv->driver, &driver_attr_new_id); 1907 if (ret) 1908 driver_unregister(&hdrv->driver); 1909 1910 return ret; 1911} 1912EXPORT_SYMBOL_GPL(__hid_register_driver); 1913 1914void hid_unregister_driver(struct hid_driver *hdrv) 1915{ 1916 driver_remove_file(&hdrv->driver, &driver_attr_new_id); 1917 driver_unregister(&hdrv->driver); 1918 hid_free_dynids(hdrv); 1919} 1920EXPORT_SYMBOL_GPL(hid_unregister_driver); 1921 1922int hid_check_keys_pressed(struct hid_device *hid) 1923{ 1924 struct hid_input *hidinput; 1925 int i; 1926 1927 if (!(hid->claimed & HID_CLAIMED_INPUT)) 1928 return 0; 1929 1930 list_for_each_entry(hidinput, &hid->inputs, list) { 1931 for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++) 1932 if (hidinput->input->key[i]) 1933 return 1; 1934 } 1935 1936 return 0; 1937} 1938 1939EXPORT_SYMBOL_GPL(hid_check_keys_pressed); 1940 1941static int __init hid_init(void) 1942{ 1943 int ret; 1944 1945 if (hid_debug) 1946 printk(KERN_WARNING "HID: hid_debug is now used solely for parser and driver debugging.\n" 1947 "HID: debugfs is now used for inspecting the device (report descriptor, reports)\n"); 1948 1949 ret = bus_register(&hid_bus_type); 1950 if (ret) { 1951 printk(KERN_ERR "HID: can't register hid bus\n"); 1952 goto err; 1953 } 1954 1955 ret = hidraw_init(); 1956 if (ret) 1957 goto err_bus; 1958 1959 hid_debug_init(); 1960 1961 return 0; 1962err_bus: 1963 bus_unregister(&hid_bus_type); 1964err: 1965 return ret; 1966} 1967 1968static void __exit hid_exit(void) 1969{ 1970 hid_debug_exit(); 1971 hidraw_exit(); 1972 bus_unregister(&hid_bus_type); 1973} 1974 1975module_init(hid_init); 1976module_exit(hid_exit); 1977 1978MODULE_AUTHOR("Andreas Gal"); 1979MODULE_AUTHOR("Vojtech Pavlik"); 1980MODULE_AUTHOR("Jiri Kosina"); 1981MODULE_LICENSE(DRIVER_LICENSE); 1982 1983