1 /* 2 * HID support for Linux 3 * 4 * Copyright (c) 1999 Andreas Gal 5 * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz> 6 * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc 7 * Copyright (c) 2006-2012 Jiri Kosina 8 */ 9 10 /* 11 * This program is free software; you can redistribute it and/or modify it 12 * under the terms of the GNU General Public License as published by the Free 13 * Software Foundation; either version 2 of the License, or (at your option) 14 * any later version. 15 */ 16 17 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 18 19 #include <linux/module.h> 20 #include <linux/slab.h> 21 #include <linux/init.h> 22 #include <linux/kernel.h> 23 #include <linux/list.h> 24 #include <linux/mm.h> 25 #include <linux/spinlock.h> 26 #include <asm/unaligned.h> 27 #include <asm/byteorder.h> 28 #include <linux/input.h> 29 #include <linux/wait.h> 30 #include <linux/vmalloc.h> 31 #include <linux/sched.h> 32 #include <linux/semaphore.h> 33 34 #include <linux/hid.h> 35 #include <linux/hiddev.h> 36 #include <linux/hid-debug.h> 37 #include <linux/hidraw.h> 38 39 #include "hid-ids.h" 40 41 /* 42 * Version Information 43 */ 44 45 #define DRIVER_DESC "HID core driver" 46 #define DRIVER_LICENSE "GPL" 47 48 int hid_debug = 0; 49 module_param_named(debug, hid_debug, int, 0600); 50 MODULE_PARM_DESC(debug, "toggle HID debugging messages"); 51 EXPORT_SYMBOL_GPL(hid_debug); 52 53 static int hid_ignore_special_drivers = 0; 54 module_param_named(ignore_special_drivers, hid_ignore_special_drivers, int, 0600); 55 MODULE_PARM_DESC(debug, "Ignore any special drivers and handle all devices by generic driver"); 56 57 /* 58 * Register a new report for a device. 59 */ 60 61 struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id) 62 { 63 struct hid_report_enum *report_enum = device->report_enum + type; 64 struct hid_report *report; 65 66 if (id >= HID_MAX_IDS) 67 return NULL; 68 if (report_enum->report_id_hash[id]) 69 return report_enum->report_id_hash[id]; 70 71 report = kzalloc(sizeof(struct hid_report), GFP_KERNEL); 72 if (!report) 73 return NULL; 74 75 if (id != 0) 76 report_enum->numbered = 1; 77 78 report->id = id; 79 report->type = type; 80 report->size = 0; 81 report->device = device; 82 report_enum->report_id_hash[id] = report; 83 84 list_add_tail(&report->list, &report_enum->report_list); 85 86 return report; 87 } 88 EXPORT_SYMBOL_GPL(hid_register_report); 89 90 /* 91 * Register a new field for this report. 92 */ 93 94 static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values) 95 { 96 struct hid_field *field; 97 98 if (report->maxfield == HID_MAX_FIELDS) { 99 hid_err(report->device, "too many fields in report\n"); 100 return NULL; 101 } 102 103 field = kzalloc((sizeof(struct hid_field) + 104 usages * sizeof(struct hid_usage) + 105 values * sizeof(unsigned)), GFP_KERNEL); 106 if (!field) 107 return NULL; 108 109 field->index = report->maxfield++; 110 report->field[field->index] = field; 111 field->usage = (struct hid_usage *)(field + 1); 112 field->value = (s32 *)(field->usage + usages); 113 field->report = report; 114 115 return field; 116 } 117 118 /* 119 * Open a collection. The type/usage is pushed on the stack. 120 */ 121 122 static int open_collection(struct hid_parser *parser, unsigned type) 123 { 124 struct hid_collection *collection; 125 unsigned usage; 126 127 usage = parser->local.usage[0]; 128 129 if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) { 130 hid_err(parser->device, "collection stack overflow\n"); 131 return -EINVAL; 132 } 133 134 if (parser->device->maxcollection == parser->device->collection_size) { 135 collection = kmalloc(sizeof(struct hid_collection) * 136 parser->device->collection_size * 2, GFP_KERNEL); 137 if (collection == NULL) { 138 hid_err(parser->device, "failed to reallocate collection array\n"); 139 return -ENOMEM; 140 } 141 memcpy(collection, parser->device->collection, 142 sizeof(struct hid_collection) * 143 parser->device->collection_size); 144 memset(collection + parser->device->collection_size, 0, 145 sizeof(struct hid_collection) * 146 parser->device->collection_size); 147 kfree(parser->device->collection); 148 parser->device->collection = collection; 149 parser->device->collection_size *= 2; 150 } 151 152 parser->collection_stack[parser->collection_stack_ptr++] = 153 parser->device->maxcollection; 154 155 collection = parser->device->collection + 156 parser->device->maxcollection++; 157 collection->type = type; 158 collection->usage = usage; 159 collection->level = parser->collection_stack_ptr - 1; 160 161 if (type == HID_COLLECTION_APPLICATION) 162 parser->device->maxapplication++; 163 164 return 0; 165 } 166 167 /* 168 * Close a collection. 169 */ 170 171 static int close_collection(struct hid_parser *parser) 172 { 173 if (!parser->collection_stack_ptr) { 174 hid_err(parser->device, "collection stack underflow\n"); 175 return -EINVAL; 176 } 177 parser->collection_stack_ptr--; 178 return 0; 179 } 180 181 /* 182 * Climb up the stack, search for the specified collection type 183 * and return the usage. 184 */ 185 186 static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type) 187 { 188 struct hid_collection *collection = parser->device->collection; 189 int n; 190 191 for (n = parser->collection_stack_ptr - 1; n >= 0; n--) { 192 unsigned index = parser->collection_stack[n]; 193 if (collection[index].type == type) 194 return collection[index].usage; 195 } 196 return 0; /* we know nothing about this usage type */ 197 } 198 199 /* 200 * Add a usage to the temporary parser table. 201 */ 202 203 static int hid_add_usage(struct hid_parser *parser, unsigned usage) 204 { 205 if (parser->local.usage_index >= HID_MAX_USAGES) { 206 hid_err(parser->device, "usage index exceeded\n"); 207 return -1; 208 } 209 parser->local.usage[parser->local.usage_index] = usage; 210 parser->local.collection_index[parser->local.usage_index] = 211 parser->collection_stack_ptr ? 212 parser->collection_stack[parser->collection_stack_ptr - 1] : 0; 213 parser->local.usage_index++; 214 return 0; 215 } 216 217 /* 218 * Register a new field for this report. 219 */ 220 221 static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags) 222 { 223 struct hid_report *report; 224 struct hid_field *field; 225 unsigned usages; 226 unsigned offset; 227 unsigned i; 228 229 report = hid_register_report(parser->device, report_type, parser->global.report_id); 230 if (!report) { 231 hid_err(parser->device, "hid_register_report failed\n"); 232 return -1; 233 } 234 235 /* Handle both signed and unsigned cases properly */ 236 if ((parser->global.logical_minimum < 0 && 237 parser->global.logical_maximum < 238 parser->global.logical_minimum) || 239 (parser->global.logical_minimum >= 0 && 240 (__u32)parser->global.logical_maximum < 241 (__u32)parser->global.logical_minimum)) { 242 dbg_hid("logical range invalid 0x%x 0x%x\n", 243 parser->global.logical_minimum, 244 parser->global.logical_maximum); 245 return -1; 246 } 247 248 offset = report->size; 249 report->size += parser->global.report_size * parser->global.report_count; 250 251 if (!parser->local.usage_index) /* Ignore padding fields */ 252 return 0; 253 254 usages = max_t(unsigned, parser->local.usage_index, 255 parser->global.report_count); 256 257 field = hid_register_field(report, usages, parser->global.report_count); 258 if (!field) 259 return 0; 260 261 field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL); 262 field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL); 263 field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION); 264 265 for (i = 0; i < usages; i++) { 266 unsigned j = i; 267 /* Duplicate the last usage we parsed if we have excess values */ 268 if (i >= parser->local.usage_index) 269 j = parser->local.usage_index - 1; 270 field->usage[i].hid = parser->local.usage[j]; 271 field->usage[i].collection_index = 272 parser->local.collection_index[j]; 273 field->usage[i].usage_index = i; 274 } 275 276 field->maxusage = usages; 277 field->flags = flags; 278 field->report_offset = offset; 279 field->report_type = report_type; 280 field->report_size = parser->global.report_size; 281 field->report_count = parser->global.report_count; 282 field->logical_minimum = parser->global.logical_minimum; 283 field->logical_maximum = parser->global.logical_maximum; 284 field->physical_minimum = parser->global.physical_minimum; 285 field->physical_maximum = parser->global.physical_maximum; 286 field->unit_exponent = parser->global.unit_exponent; 287 field->unit = parser->global.unit; 288 289 return 0; 290 } 291 292 /* 293 * Read data value from item. 294 */ 295 296 static u32 item_udata(struct hid_item *item) 297 { 298 switch (item->size) { 299 case 1: return item->data.u8; 300 case 2: return item->data.u16; 301 case 4: return item->data.u32; 302 } 303 return 0; 304 } 305 306 static s32 item_sdata(struct hid_item *item) 307 { 308 switch (item->size) { 309 case 1: return item->data.s8; 310 case 2: return item->data.s16; 311 case 4: return item->data.s32; 312 } 313 return 0; 314 } 315 316 /* 317 * Process a global item. 318 */ 319 320 static int hid_parser_global(struct hid_parser *parser, struct hid_item *item) 321 { 322 __u32 raw_value; 323 switch (item->tag) { 324 case HID_GLOBAL_ITEM_TAG_PUSH: 325 326 if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) { 327 hid_err(parser->device, "global environment stack overflow\n"); 328 return -1; 329 } 330 331 memcpy(parser->global_stack + parser->global_stack_ptr++, 332 &parser->global, sizeof(struct hid_global)); 333 return 0; 334 335 case HID_GLOBAL_ITEM_TAG_POP: 336 337 if (!parser->global_stack_ptr) { 338 hid_err(parser->device, "global environment stack underflow\n"); 339 return -1; 340 } 341 342 memcpy(&parser->global, parser->global_stack + 343 --parser->global_stack_ptr, sizeof(struct hid_global)); 344 return 0; 345 346 case HID_GLOBAL_ITEM_TAG_USAGE_PAGE: 347 parser->global.usage_page = item_udata(item); 348 return 0; 349 350 case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM: 351 parser->global.logical_minimum = item_sdata(item); 352 return 0; 353 354 case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM: 355 if (parser->global.logical_minimum < 0) 356 parser->global.logical_maximum = item_sdata(item); 357 else 358 parser->global.logical_maximum = item_udata(item); 359 return 0; 360 361 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM: 362 parser->global.physical_minimum = item_sdata(item); 363 return 0; 364 365 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM: 366 if (parser->global.physical_minimum < 0) 367 parser->global.physical_maximum = item_sdata(item); 368 else 369 parser->global.physical_maximum = item_udata(item); 370 return 0; 371 372 case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT: 373 /* Units exponent negative numbers are given through a 374 * two's complement. 375 * See "6.2.2.7 Global Items" for more information. */ 376 raw_value = item_udata(item); 377 if (!(raw_value & 0xfffffff0)) 378 parser->global.unit_exponent = hid_snto32(raw_value, 4); 379 else 380 parser->global.unit_exponent = raw_value; 381 return 0; 382 383 case HID_GLOBAL_ITEM_TAG_UNIT: 384 parser->global.unit = item_udata(item); 385 return 0; 386 387 case HID_GLOBAL_ITEM_TAG_REPORT_SIZE: 388 parser->global.report_size = item_udata(item); 389 if (parser->global.report_size > 128) { 390 hid_err(parser->device, "invalid report_size %d\n", 391 parser->global.report_size); 392 return -1; 393 } 394 return 0; 395 396 case HID_GLOBAL_ITEM_TAG_REPORT_COUNT: 397 parser->global.report_count = item_udata(item); 398 if (parser->global.report_count > HID_MAX_USAGES) { 399 hid_err(parser->device, "invalid report_count %d\n", 400 parser->global.report_count); 401 return -1; 402 } 403 return 0; 404 405 case HID_GLOBAL_ITEM_TAG_REPORT_ID: 406 parser->global.report_id = item_udata(item); 407 if (parser->global.report_id == 0 || 408 parser->global.report_id >= HID_MAX_IDS) { 409 hid_err(parser->device, "report_id %u is invalid\n", 410 parser->global.report_id); 411 return -1; 412 } 413 return 0; 414 415 default: 416 hid_err(parser->device, "unknown global tag 0x%x\n", item->tag); 417 return -1; 418 } 419 } 420 421 /* 422 * Process a local item. 423 */ 424 425 static int hid_parser_local(struct hid_parser *parser, struct hid_item *item) 426 { 427 __u32 data; 428 unsigned n; 429 430 data = item_udata(item); 431 432 switch (item->tag) { 433 case HID_LOCAL_ITEM_TAG_DELIMITER: 434 435 if (data) { 436 /* 437 * We treat items before the first delimiter 438 * as global to all usage sets (branch 0). 439 * In the moment we process only these global 440 * items and the first delimiter set. 441 */ 442 if (parser->local.delimiter_depth != 0) { 443 hid_err(parser->device, "nested delimiters\n"); 444 return -1; 445 } 446 parser->local.delimiter_depth++; 447 parser->local.delimiter_branch++; 448 } else { 449 if (parser->local.delimiter_depth < 1) { 450 hid_err(parser->device, "bogus close delimiter\n"); 451 return -1; 452 } 453 parser->local.delimiter_depth--; 454 } 455 return 0; 456 457 case HID_LOCAL_ITEM_TAG_USAGE: 458 459 if (parser->local.delimiter_branch > 1) { 460 dbg_hid("alternative usage ignored\n"); 461 return 0; 462 } 463 464 if (item->size <= 2) 465 data = (parser->global.usage_page << 16) + data; 466 467 return hid_add_usage(parser, data); 468 469 case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM: 470 471 if (parser->local.delimiter_branch > 1) { 472 dbg_hid("alternative usage ignored\n"); 473 return 0; 474 } 475 476 if (item->size <= 2) 477 data = (parser->global.usage_page << 16) + data; 478 479 parser->local.usage_minimum = data; 480 return 0; 481 482 case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM: 483 484 if (parser->local.delimiter_branch > 1) { 485 dbg_hid("alternative usage ignored\n"); 486 return 0; 487 } 488 489 if (item->size <= 2) 490 data = (parser->global.usage_page << 16) + data; 491 492 for (n = parser->local.usage_minimum; n <= data; n++) 493 if (hid_add_usage(parser, n)) { 494 dbg_hid("hid_add_usage failed\n"); 495 return -1; 496 } 497 return 0; 498 499 default: 500 501 dbg_hid("unknown local item tag 0x%x\n", item->tag); 502 return 0; 503 } 504 return 0; 505 } 506 507 /* 508 * Process a main item. 509 */ 510 511 static int hid_parser_main(struct hid_parser *parser, struct hid_item *item) 512 { 513 __u32 data; 514 int ret; 515 516 data = item_udata(item); 517 518 switch (item->tag) { 519 case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION: 520 ret = open_collection(parser, data & 0xff); 521 break; 522 case HID_MAIN_ITEM_TAG_END_COLLECTION: 523 ret = close_collection(parser); 524 break; 525 case HID_MAIN_ITEM_TAG_INPUT: 526 ret = hid_add_field(parser, HID_INPUT_REPORT, data); 527 break; 528 case HID_MAIN_ITEM_TAG_OUTPUT: 529 ret = hid_add_field(parser, HID_OUTPUT_REPORT, data); 530 break; 531 case HID_MAIN_ITEM_TAG_FEATURE: 532 ret = hid_add_field(parser, HID_FEATURE_REPORT, data); 533 break; 534 default: 535 hid_err(parser->device, "unknown main item tag 0x%x\n", item->tag); 536 ret = 0; 537 } 538 539 memset(&parser->local, 0, sizeof(parser->local)); /* Reset the local parser environment */ 540 541 return ret; 542 } 543 544 /* 545 * Process a reserved item. 546 */ 547 548 static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item) 549 { 550 dbg_hid("reserved item type, tag 0x%x\n", item->tag); 551 return 0; 552 } 553 554 /* 555 * Free a report and all registered fields. The field->usage and 556 * field->value table's are allocated behind the field, so we need 557 * only to free(field) itself. 558 */ 559 560 static void hid_free_report(struct hid_report *report) 561 { 562 unsigned n; 563 564 for (n = 0; n < report->maxfield; n++) 565 kfree(report->field[n]); 566 kfree(report); 567 } 568 569 /* 570 * Close report. This function returns the device 571 * state to the point prior to hid_open_report(). 572 */ 573 static void hid_close_report(struct hid_device *device) 574 { 575 unsigned i, j; 576 577 for (i = 0; i < HID_REPORT_TYPES; i++) { 578 struct hid_report_enum *report_enum = device->report_enum + i; 579 580 for (j = 0; j < HID_MAX_IDS; j++) { 581 struct hid_report *report = report_enum->report_id_hash[j]; 582 if (report) 583 hid_free_report(report); 584 } 585 memset(report_enum, 0, sizeof(*report_enum)); 586 INIT_LIST_HEAD(&report_enum->report_list); 587 } 588 589 kfree(device->rdesc); 590 device->rdesc = NULL; 591 device->rsize = 0; 592 593 kfree(device->collection); 594 device->collection = NULL; 595 device->collection_size = 0; 596 device->maxcollection = 0; 597 device->maxapplication = 0; 598 599 device->status &= ~HID_STAT_PARSED; 600 } 601 602 /* 603 * Free a device structure, all reports, and all fields. 604 */ 605 606 static void hid_device_release(struct device *dev) 607 { 608 struct hid_device *hid = container_of(dev, struct hid_device, dev); 609 610 hid_close_report(hid); 611 kfree(hid->dev_rdesc); 612 kfree(hid); 613 } 614 615 /* 616 * Fetch a report description item from the data stream. We support long 617 * items, though they are not used yet. 618 */ 619 620 static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item) 621 { 622 u8 b; 623 624 if ((end - start) <= 0) 625 return NULL; 626 627 b = *start++; 628 629 item->type = (b >> 2) & 3; 630 item->tag = (b >> 4) & 15; 631 632 if (item->tag == HID_ITEM_TAG_LONG) { 633 634 item->format = HID_ITEM_FORMAT_LONG; 635 636 if ((end - start) < 2) 637 return NULL; 638 639 item->size = *start++; 640 item->tag = *start++; 641 642 if ((end - start) < item->size) 643 return NULL; 644 645 item->data.longdata = start; 646 start += item->size; 647 return start; 648 } 649 650 item->format = HID_ITEM_FORMAT_SHORT; 651 item->size = b & 3; 652 653 switch (item->size) { 654 case 0: 655 return start; 656 657 case 1: 658 if ((end - start) < 1) 659 return NULL; 660 item->data.u8 = *start++; 661 return start; 662 663 case 2: 664 if ((end - start) < 2) 665 return NULL; 666 item->data.u16 = get_unaligned_le16(start); 667 start = (__u8 *)((__le16 *)start + 1); 668 return start; 669 670 case 3: 671 item->size++; 672 if ((end - start) < 4) 673 return NULL; 674 item->data.u32 = get_unaligned_le32(start); 675 start = (__u8 *)((__le32 *)start + 1); 676 return start; 677 } 678 679 return NULL; 680 } 681 682 static void hid_scan_input_usage(struct hid_parser *parser, u32 usage) 683 { 684 struct hid_device *hid = parser->device; 685 686 if (usage == HID_DG_CONTACTID) 687 hid->group = HID_GROUP_MULTITOUCH; 688 } 689 690 static void hid_scan_feature_usage(struct hid_parser *parser, u32 usage) 691 { 692 if (usage == 0xff0000c5 && parser->global.report_count == 256 && 693 parser->global.report_size == 8) 694 parser->scan_flags |= HID_SCAN_FLAG_MT_WIN_8; 695 } 696 697 static void hid_scan_collection(struct hid_parser *parser, unsigned type) 698 { 699 struct hid_device *hid = parser->device; 700 701 if (((parser->global.usage_page << 16) == HID_UP_SENSOR) && 702 type == HID_COLLECTION_PHYSICAL) 703 hid->group = HID_GROUP_SENSOR_HUB; 704 } 705 706 static int hid_scan_main(struct hid_parser *parser, struct hid_item *item) 707 { 708 __u32 data; 709 int i; 710 711 data = item_udata(item); 712 713 switch (item->tag) { 714 case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION: 715 hid_scan_collection(parser, data & 0xff); 716 break; 717 case HID_MAIN_ITEM_TAG_END_COLLECTION: 718 break; 719 case HID_MAIN_ITEM_TAG_INPUT: 720 for (i = 0; i < parser->local.usage_index; i++) 721 hid_scan_input_usage(parser, parser->local.usage[i]); 722 break; 723 case HID_MAIN_ITEM_TAG_OUTPUT: 724 break; 725 case HID_MAIN_ITEM_TAG_FEATURE: 726 for (i = 0; i < parser->local.usage_index; i++) 727 hid_scan_feature_usage(parser, parser->local.usage[i]); 728 break; 729 } 730 731 /* Reset the local parser environment */ 732 memset(&parser->local, 0, sizeof(parser->local)); 733 734 return 0; 735 } 736 737 /* 738 * Scan a report descriptor before the device is added to the bus. 739 * Sets device groups and other properties that determine what driver 740 * to load. 741 */ 742 static int hid_scan_report(struct hid_device *hid) 743 { 744 struct hid_parser *parser; 745 struct hid_item item; 746 __u8 *start = hid->dev_rdesc; 747 __u8 *end = start + hid->dev_rsize; 748 static int (*dispatch_type[])(struct hid_parser *parser, 749 struct hid_item *item) = { 750 hid_scan_main, 751 hid_parser_global, 752 hid_parser_local, 753 hid_parser_reserved 754 }; 755 756 parser = vzalloc(sizeof(struct hid_parser)); 757 if (!parser) 758 return -ENOMEM; 759 760 parser->device = hid; 761 hid->group = HID_GROUP_GENERIC; 762 763 /* 764 * The parsing is simpler than the one in hid_open_report() as we should 765 * be robust against hid errors. Those errors will be raised by 766 * hid_open_report() anyway. 767 */ 768 while ((start = fetch_item(start, end, &item)) != NULL) 769 dispatch_type[item.type](parser, &item); 770 771 /* 772 * Handle special flags set during scanning. 773 */ 774 if ((parser->scan_flags & HID_SCAN_FLAG_MT_WIN_8) && 775 (hid->group == HID_GROUP_MULTITOUCH)) 776 hid->group = HID_GROUP_MULTITOUCH_WIN_8; 777 778 vfree(parser); 779 return 0; 780 } 781 782 /** 783 * hid_parse_report - parse device report 784 * 785 * @device: hid device 786 * @start: report start 787 * @size: report size 788 * 789 * Allocate the device report as read by the bus driver. This function should 790 * only be called from parse() in ll drivers. 791 */ 792 int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size) 793 { 794 hid->dev_rdesc = kmemdup(start, size, GFP_KERNEL); 795 if (!hid->dev_rdesc) 796 return -ENOMEM; 797 hid->dev_rsize = size; 798 return 0; 799 } 800 EXPORT_SYMBOL_GPL(hid_parse_report); 801 802 static const char * const hid_report_names[] = { 803 "HID_INPUT_REPORT", 804 "HID_OUTPUT_REPORT", 805 "HID_FEATURE_REPORT", 806 }; 807 /** 808 * hid_validate_values - validate existing device report's value indexes 809 * 810 * @device: hid device 811 * @type: which report type to examine 812 * @id: which report ID to examine (0 for first) 813 * @field_index: which report field to examine 814 * @report_counts: expected number of values 815 * 816 * Validate the number of values in a given field of a given report, after 817 * parsing. 818 */ 819 struct hid_report *hid_validate_values(struct hid_device *hid, 820 unsigned int type, unsigned int id, 821 unsigned int field_index, 822 unsigned int report_counts) 823 { 824 struct hid_report *report; 825 826 if (type > HID_FEATURE_REPORT) { 827 hid_err(hid, "invalid HID report type %u\n", type); 828 return NULL; 829 } 830 831 if (id >= HID_MAX_IDS) { 832 hid_err(hid, "invalid HID report id %u\n", id); 833 return NULL; 834 } 835 836 /* 837 * Explicitly not using hid_get_report() here since it depends on 838 * ->numbered being checked, which may not always be the case when 839 * drivers go to access report values. 840 */ 841 report = hid->report_enum[type].report_id_hash[id]; 842 if (!report) { 843 hid_err(hid, "missing %s %u\n", hid_report_names[type], id); 844 return NULL; 845 } 846 if (report->maxfield <= field_index) { 847 hid_err(hid, "not enough fields in %s %u\n", 848 hid_report_names[type], id); 849 return NULL; 850 } 851 if (report->field[field_index]->report_count < report_counts) { 852 hid_err(hid, "not enough values in %s %u field %u\n", 853 hid_report_names[type], id, field_index); 854 return NULL; 855 } 856 return report; 857 } 858 EXPORT_SYMBOL_GPL(hid_validate_values); 859 860 /** 861 * hid_open_report - open a driver-specific device report 862 * 863 * @device: hid device 864 * 865 * Parse a report description into a hid_device structure. Reports are 866 * enumerated, fields are attached to these reports. 867 * 0 returned on success, otherwise nonzero error value. 868 * 869 * This function (or the equivalent hid_parse() macro) should only be 870 * called from probe() in drivers, before starting the device. 871 */ 872 int hid_open_report(struct hid_device *device) 873 { 874 struct hid_parser *parser; 875 struct hid_item item; 876 unsigned int size; 877 __u8 *start; 878 __u8 *buf; 879 __u8 *end; 880 int ret; 881 static int (*dispatch_type[])(struct hid_parser *parser, 882 struct hid_item *item) = { 883 hid_parser_main, 884 hid_parser_global, 885 hid_parser_local, 886 hid_parser_reserved 887 }; 888 889 if (WARN_ON(device->status & HID_STAT_PARSED)) 890 return -EBUSY; 891 892 start = device->dev_rdesc; 893 if (WARN_ON(!start)) 894 return -ENODEV; 895 size = device->dev_rsize; 896 897 buf = kmemdup(start, size, GFP_KERNEL); 898 if (buf == NULL) 899 return -ENOMEM; 900 901 if (device->driver->report_fixup) 902 start = device->driver->report_fixup(device, buf, &size); 903 else 904 start = buf; 905 906 start = kmemdup(start, size, GFP_KERNEL); 907 kfree(buf); 908 if (start == NULL) 909 return -ENOMEM; 910 911 device->rdesc = start; 912 device->rsize = size; 913 914 parser = vzalloc(sizeof(struct hid_parser)); 915 if (!parser) { 916 ret = -ENOMEM; 917 goto err; 918 } 919 920 parser->device = device; 921 922 end = start + size; 923 924 device->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS, 925 sizeof(struct hid_collection), GFP_KERNEL); 926 if (!device->collection) { 927 ret = -ENOMEM; 928 goto err; 929 } 930 device->collection_size = HID_DEFAULT_NUM_COLLECTIONS; 931 932 ret = -EINVAL; 933 while ((start = fetch_item(start, end, &item)) != NULL) { 934 935 if (item.format != HID_ITEM_FORMAT_SHORT) { 936 hid_err(device, "unexpected long global item\n"); 937 goto err; 938 } 939 940 if (dispatch_type[item.type](parser, &item)) { 941 hid_err(device, "item %u %u %u %u parsing failed\n", 942 item.format, (unsigned)item.size, 943 (unsigned)item.type, (unsigned)item.tag); 944 goto err; 945 } 946 947 if (start == end) { 948 if (parser->collection_stack_ptr) { 949 hid_err(device, "unbalanced collection at end of report description\n"); 950 goto err; 951 } 952 if (parser->local.delimiter_depth) { 953 hid_err(device, "unbalanced delimiter at end of report description\n"); 954 goto err; 955 } 956 vfree(parser); 957 device->status |= HID_STAT_PARSED; 958 return 0; 959 } 960 } 961 962 hid_err(device, "item fetching failed at offset %d\n", (int)(end - start)); 963 err: 964 vfree(parser); 965 hid_close_report(device); 966 return ret; 967 } 968 EXPORT_SYMBOL_GPL(hid_open_report); 969 970 /* 971 * Convert a signed n-bit integer to signed 32-bit integer. Common 972 * cases are done through the compiler, the screwed things has to be 973 * done by hand. 974 */ 975 976 static s32 snto32(__u32 value, unsigned n) 977 { 978 switch (n) { 979 case 8: return ((__s8)value); 980 case 16: return ((__s16)value); 981 case 32: return ((__s32)value); 982 } 983 return value & (1 << (n - 1)) ? value | (-1 << n) : value; 984 } 985 986 s32 hid_snto32(__u32 value, unsigned n) 987 { 988 return snto32(value, n); 989 } 990 EXPORT_SYMBOL_GPL(hid_snto32); 991 992 /* 993 * Convert a signed 32-bit integer to a signed n-bit integer. 994 */ 995 996 static u32 s32ton(__s32 value, unsigned n) 997 { 998 s32 a = value >> (n - 1); 999 if (a && a != -1) 1000 return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1; 1001 return value & ((1 << n) - 1); 1002 } 1003 1004 /* 1005 * Extract/implement a data field from/to a little endian report (bit array). 1006 * 1007 * Code sort-of follows HID spec: 1008 * http://www.usb.org/developers/devclass_docs/HID1_11.pdf 1009 * 1010 * While the USB HID spec allows unlimited length bit fields in "report 1011 * descriptors", most devices never use more than 16 bits. 1012 * One model of UPS is claimed to report "LINEV" as a 32-bit field. 1013 * Search linux-kernel and linux-usb-devel archives for "hid-core extract". 1014 */ 1015 1016 static __u32 extract(const struct hid_device *hid, __u8 *report, 1017 unsigned offset, unsigned n) 1018 { 1019 u64 x; 1020 1021 if (n > 32) 1022 hid_warn(hid, "extract() called with n (%d) > 32! (%s)\n", 1023 n, current->comm); 1024 1025 report += offset >> 3; /* adjust byte index */ 1026 offset &= 7; /* now only need bit offset into one byte */ 1027 x = get_unaligned_le64(report); 1028 x = (x >> offset) & ((1ULL << n) - 1); /* extract bit field */ 1029 return (u32) x; 1030 } 1031 1032 /* 1033 * "implement" : set bits in a little endian bit stream. 1034 * Same concepts as "extract" (see comments above). 1035 * The data mangled in the bit stream remains in little endian 1036 * order the whole time. It make more sense to talk about 1037 * endianness of register values by considering a register 1038 * a "cached" copy of the little endiad bit stream. 1039 */ 1040 static void implement(const struct hid_device *hid, __u8 *report, 1041 unsigned offset, unsigned n, __u32 value) 1042 { 1043 u64 x; 1044 u64 m = (1ULL << n) - 1; 1045 1046 if (n > 32) 1047 hid_warn(hid, "%s() called with n (%d) > 32! (%s)\n", 1048 __func__, n, current->comm); 1049 1050 if (value > m) 1051 hid_warn(hid, "%s() called with too large value %d! (%s)\n", 1052 __func__, value, current->comm); 1053 WARN_ON(value > m); 1054 value &= m; 1055 1056 report += offset >> 3; 1057 offset &= 7; 1058 1059 x = get_unaligned_le64(report); 1060 x &= ~(m << offset); 1061 x |= ((u64)value) << offset; 1062 put_unaligned_le64(x, report); 1063 } 1064 1065 /* 1066 * Search an array for a value. 1067 */ 1068 1069 static int search(__s32 *array, __s32 value, unsigned n) 1070 { 1071 while (n--) { 1072 if (*array++ == value) 1073 return 0; 1074 } 1075 return -1; 1076 } 1077 1078 /** 1079 * hid_match_report - check if driver's raw_event should be called 1080 * 1081 * @hid: hid device 1082 * @report_type: type to match against 1083 * 1084 * compare hid->driver->report_table->report_type to report->type 1085 */ 1086 static int hid_match_report(struct hid_device *hid, struct hid_report *report) 1087 { 1088 const struct hid_report_id *id = hid->driver->report_table; 1089 1090 if (!id) /* NULL means all */ 1091 return 1; 1092 1093 for (; id->report_type != HID_TERMINATOR; id++) 1094 if (id->report_type == HID_ANY_ID || 1095 id->report_type == report->type) 1096 return 1; 1097 return 0; 1098 } 1099 1100 /** 1101 * hid_match_usage - check if driver's event should be called 1102 * 1103 * @hid: hid device 1104 * @usage: usage to match against 1105 * 1106 * compare hid->driver->usage_table->usage_{type,code} to 1107 * usage->usage_{type,code} 1108 */ 1109 static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage) 1110 { 1111 const struct hid_usage_id *id = hid->driver->usage_table; 1112 1113 if (!id) /* NULL means all */ 1114 return 1; 1115 1116 for (; id->usage_type != HID_ANY_ID - 1; id++) 1117 if ((id->usage_hid == HID_ANY_ID || 1118 id->usage_hid == usage->hid) && 1119 (id->usage_type == HID_ANY_ID || 1120 id->usage_type == usage->type) && 1121 (id->usage_code == HID_ANY_ID || 1122 id->usage_code == usage->code)) 1123 return 1; 1124 return 0; 1125 } 1126 1127 static void hid_process_event(struct hid_device *hid, struct hid_field *field, 1128 struct hid_usage *usage, __s32 value, int interrupt) 1129 { 1130 struct hid_driver *hdrv = hid->driver; 1131 int ret; 1132 1133 if (!list_empty(&hid->debug_list)) 1134 hid_dump_input(hid, usage, value); 1135 1136 if (hdrv && hdrv->event && hid_match_usage(hid, usage)) { 1137 ret = hdrv->event(hid, field, usage, value); 1138 if (ret != 0) { 1139 if (ret < 0) 1140 hid_err(hid, "%s's event failed with %d\n", 1141 hdrv->name, ret); 1142 return; 1143 } 1144 } 1145 1146 if (hid->claimed & HID_CLAIMED_INPUT) 1147 hidinput_hid_event(hid, field, usage, value); 1148 if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event) 1149 hid->hiddev_hid_event(hid, field, usage, value); 1150 } 1151 1152 /* 1153 * Analyse a received field, and fetch the data from it. The field 1154 * content is stored for next report processing (we do differential 1155 * reporting to the layer). 1156 */ 1157 1158 static void hid_input_field(struct hid_device *hid, struct hid_field *field, 1159 __u8 *data, int interrupt) 1160 { 1161 unsigned n; 1162 unsigned count = field->report_count; 1163 unsigned offset = field->report_offset; 1164 unsigned size = field->report_size; 1165 __s32 min = field->logical_minimum; 1166 __s32 max = field->logical_maximum; 1167 __s32 *value; 1168 1169 value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC); 1170 if (!value) 1171 return; 1172 1173 for (n = 0; n < count; n++) { 1174 1175 value[n] = min < 0 ? 1176 snto32(extract(hid, data, offset + n * size, size), 1177 size) : 1178 extract(hid, data, offset + n * size, size); 1179 1180 /* Ignore report if ErrorRollOver */ 1181 if (!(field->flags & HID_MAIN_ITEM_VARIABLE) && 1182 value[n] >= min && value[n] <= max && 1183 field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1) 1184 goto exit; 1185 } 1186 1187 for (n = 0; n < count; n++) { 1188 1189 if (HID_MAIN_ITEM_VARIABLE & field->flags) { 1190 hid_process_event(hid, field, &field->usage[n], value[n], interrupt); 1191 continue; 1192 } 1193 1194 if (field->value[n] >= min && field->value[n] <= max 1195 && field->usage[field->value[n] - min].hid 1196 && search(value, field->value[n], count)) 1197 hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt); 1198 1199 if (value[n] >= min && value[n] <= max 1200 && field->usage[value[n] - min].hid 1201 && search(field->value, value[n], count)) 1202 hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt); 1203 } 1204 1205 memcpy(field->value, value, count * sizeof(__s32)); 1206 exit: 1207 kfree(value); 1208 } 1209 1210 /* 1211 * Output the field into the report. 1212 */ 1213 1214 static void hid_output_field(const struct hid_device *hid, 1215 struct hid_field *field, __u8 *data) 1216 { 1217 unsigned count = field->report_count; 1218 unsigned offset = field->report_offset; 1219 unsigned size = field->report_size; 1220 unsigned n; 1221 1222 for (n = 0; n < count; n++) { 1223 if (field->logical_minimum < 0) /* signed values */ 1224 implement(hid, data, offset + n * size, size, 1225 s32ton(field->value[n], size)); 1226 else /* unsigned values */ 1227 implement(hid, data, offset + n * size, size, 1228 field->value[n]); 1229 } 1230 } 1231 1232 /* 1233 * Create a report. 'data' has to be allocated using 1234 * hid_alloc_report_buf() so that it has proper size. 1235 */ 1236 1237 void hid_output_report(struct hid_report *report, __u8 *data) 1238 { 1239 unsigned n; 1240 1241 if (report->id > 0) 1242 *data++ = report->id; 1243 1244 memset(data, 0, ((report->size - 1) >> 3) + 1); 1245 for (n = 0; n < report->maxfield; n++) 1246 hid_output_field(report->device, report->field[n], data); 1247 } 1248 EXPORT_SYMBOL_GPL(hid_output_report); 1249 1250 /* 1251 * Allocator for buffer that is going to be passed to hid_output_report() 1252 */ 1253 u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags) 1254 { 1255 /* 1256 * 7 extra bytes are necessary to achieve proper functionality 1257 * of implement() working on 8 byte chunks 1258 */ 1259 1260 int len = ((report->size - 1) >> 3) + 1 + (report->id > 0) + 7; 1261 1262 return kmalloc(len, flags); 1263 } 1264 EXPORT_SYMBOL_GPL(hid_alloc_report_buf); 1265 1266 /* 1267 * Set a field value. The report this field belongs to has to be 1268 * created and transferred to the device, to set this value in the 1269 * device. 1270 */ 1271 1272 int hid_set_field(struct hid_field *field, unsigned offset, __s32 value) 1273 { 1274 unsigned size; 1275 1276 if (!field) 1277 return -1; 1278 1279 size = field->report_size; 1280 1281 hid_dump_input(field->report->device, field->usage + offset, value); 1282 1283 if (offset >= field->report_count) { 1284 hid_err(field->report->device, "offset (%d) exceeds report_count (%d)\n", 1285 offset, field->report_count); 1286 return -1; 1287 } 1288 if (field->logical_minimum < 0) { 1289 if (value != snto32(s32ton(value, size), size)) { 1290 hid_err(field->report->device, "value %d is out of range\n", value); 1291 return -1; 1292 } 1293 } 1294 field->value[offset] = value; 1295 return 0; 1296 } 1297 EXPORT_SYMBOL_GPL(hid_set_field); 1298 1299 static struct hid_report *hid_get_report(struct hid_report_enum *report_enum, 1300 const u8 *data) 1301 { 1302 struct hid_report *report; 1303 unsigned int n = 0; /* Normally report number is 0 */ 1304 1305 /* Device uses numbered reports, data[0] is report number */ 1306 if (report_enum->numbered) 1307 n = *data; 1308 1309 report = report_enum->report_id_hash[n]; 1310 if (report == NULL) 1311 dbg_hid("undefined report_id %u received\n", n); 1312 1313 return report; 1314 } 1315 1316 int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size, 1317 int interrupt) 1318 { 1319 struct hid_report_enum *report_enum = hid->report_enum + type; 1320 struct hid_report *report; 1321 struct hid_driver *hdrv; 1322 unsigned int a; 1323 int rsize, csize = size; 1324 u8 *cdata = data; 1325 int ret = 0; 1326 1327 report = hid_get_report(report_enum, data); 1328 if (!report) 1329 goto out; 1330 1331 if (report_enum->numbered) { 1332 cdata++; 1333 csize--; 1334 } 1335 1336 rsize = ((report->size - 1) >> 3) + 1; 1337 1338 if (rsize > HID_MAX_BUFFER_SIZE) 1339 rsize = HID_MAX_BUFFER_SIZE; 1340 1341 if (csize < rsize) { 1342 dbg_hid("report %d is too short, (%d < %d)\n", report->id, 1343 csize, rsize); 1344 memset(cdata + csize, 0, rsize - csize); 1345 } 1346 1347 if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event) 1348 hid->hiddev_report_event(hid, report); 1349 if (hid->claimed & HID_CLAIMED_HIDRAW) { 1350 ret = hidraw_report_event(hid, data, size); 1351 if (ret) 1352 goto out; 1353 } 1354 1355 if (hid->claimed != HID_CLAIMED_HIDRAW && report->maxfield) { 1356 for (a = 0; a < report->maxfield; a++) 1357 hid_input_field(hid, report->field[a], cdata, interrupt); 1358 hdrv = hid->driver; 1359 if (hdrv && hdrv->report) 1360 hdrv->report(hid, report); 1361 } 1362 1363 if (hid->claimed & HID_CLAIMED_INPUT) 1364 hidinput_report_event(hid, report); 1365 out: 1366 return ret; 1367 } 1368 EXPORT_SYMBOL_GPL(hid_report_raw_event); 1369 1370 /** 1371 * hid_input_report - report data from lower layer (usb, bt...) 1372 * 1373 * @hid: hid device 1374 * @type: HID report type (HID_*_REPORT) 1375 * @data: report contents 1376 * @size: size of data parameter 1377 * @interrupt: distinguish between interrupt and control transfers 1378 * 1379 * This is data entry for lower layers. 1380 */ 1381 int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt) 1382 { 1383 struct hid_report_enum *report_enum; 1384 struct hid_driver *hdrv; 1385 struct hid_report *report; 1386 int ret = 0; 1387 1388 if (!hid) 1389 return -ENODEV; 1390 1391 if (down_trylock(&hid->driver_input_lock)) 1392 return -EBUSY; 1393 1394 if (!hid->driver) { 1395 ret = -ENODEV; 1396 goto unlock; 1397 } 1398 report_enum = hid->report_enum + type; 1399 hdrv = hid->driver; 1400 1401 if (!size) { 1402 dbg_hid("empty report\n"); 1403 ret = -1; 1404 goto unlock; 1405 } 1406 1407 /* Avoid unnecessary overhead if debugfs is disabled */ 1408 if (!list_empty(&hid->debug_list)) 1409 hid_dump_report(hid, type, data, size); 1410 1411 report = hid_get_report(report_enum, data); 1412 1413 if (!report) { 1414 ret = -1; 1415 goto unlock; 1416 } 1417 1418 if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) { 1419 ret = hdrv->raw_event(hid, report, data, size); 1420 if (ret < 0) { 1421 ret = ret < 0 ? ret : 0; 1422 goto unlock; 1423 } 1424 } 1425 1426 ret = hid_report_raw_event(hid, type, data, size, interrupt); 1427 1428 unlock: 1429 up(&hid->driver_input_lock); 1430 return ret; 1431 } 1432 EXPORT_SYMBOL_GPL(hid_input_report); 1433 1434 static bool hid_match_one_id(struct hid_device *hdev, 1435 const struct hid_device_id *id) 1436 { 1437 return (id->bus == HID_BUS_ANY || id->bus == hdev->bus) && 1438 (id->group == HID_GROUP_ANY || id->group == hdev->group) && 1439 (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) && 1440 (id->product == HID_ANY_ID || id->product == hdev->product); 1441 } 1442 1443 const struct hid_device_id *hid_match_id(struct hid_device *hdev, 1444 const struct hid_device_id *id) 1445 { 1446 for (; id->bus; id++) 1447 if (hid_match_one_id(hdev, id)) 1448 return id; 1449 1450 return NULL; 1451 } 1452 1453 static const struct hid_device_id hid_hiddev_list[] = { 1454 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) }, 1455 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) }, 1456 { } 1457 }; 1458 1459 static bool hid_hiddev(struct hid_device *hdev) 1460 { 1461 return !!hid_match_id(hdev, hid_hiddev_list); 1462 } 1463 1464 1465 static ssize_t 1466 read_report_descriptor(struct file *filp, struct kobject *kobj, 1467 struct bin_attribute *attr, 1468 char *buf, loff_t off, size_t count) 1469 { 1470 struct device *dev = container_of(kobj, struct device, kobj); 1471 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 1472 1473 if (off >= hdev->rsize) 1474 return 0; 1475 1476 if (off + count > hdev->rsize) 1477 count = hdev->rsize - off; 1478 1479 memcpy(buf, hdev->rdesc + off, count); 1480 1481 return count; 1482 } 1483 1484 static struct bin_attribute dev_bin_attr_report_desc = { 1485 .attr = { .name = "report_descriptor", .mode = 0444 }, 1486 .read = read_report_descriptor, 1487 .size = HID_MAX_DESCRIPTOR_SIZE, 1488 }; 1489 1490 int hid_connect(struct hid_device *hdev, unsigned int connect_mask) 1491 { 1492 static const char *types[] = { "Device", "Pointer", "Mouse", "Device", 1493 "Joystick", "Gamepad", "Keyboard", "Keypad", 1494 "Multi-Axis Controller" 1495 }; 1496 const char *type, *bus; 1497 char buf[64]; 1498 unsigned int i; 1499 int len; 1500 int ret; 1501 1502 if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE) 1503 connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV); 1504 if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE) 1505 connect_mask |= HID_CONNECT_HIDINPUT_FORCE; 1506 if (hdev->bus != BUS_USB) 1507 connect_mask &= ~HID_CONNECT_HIDDEV; 1508 if (hid_hiddev(hdev)) 1509 connect_mask |= HID_CONNECT_HIDDEV_FORCE; 1510 1511 if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev, 1512 connect_mask & HID_CONNECT_HIDINPUT_FORCE)) 1513 hdev->claimed |= HID_CLAIMED_INPUT; 1514 1515 if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect && 1516 !hdev->hiddev_connect(hdev, 1517 connect_mask & HID_CONNECT_HIDDEV_FORCE)) 1518 hdev->claimed |= HID_CLAIMED_HIDDEV; 1519 if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev)) 1520 hdev->claimed |= HID_CLAIMED_HIDRAW; 1521 1522 /* Drivers with the ->raw_event callback set are not required to connect 1523 * to any other listener. */ 1524 if (!hdev->claimed && !hdev->driver->raw_event) { 1525 hid_err(hdev, "device has no listeners, quitting\n"); 1526 return -ENODEV; 1527 } 1528 1529 if ((hdev->claimed & HID_CLAIMED_INPUT) && 1530 (connect_mask & HID_CONNECT_FF) && hdev->ff_init) 1531 hdev->ff_init(hdev); 1532 1533 len = 0; 1534 if (hdev->claimed & HID_CLAIMED_INPUT) 1535 len += sprintf(buf + len, "input"); 1536 if (hdev->claimed & HID_CLAIMED_HIDDEV) 1537 len += sprintf(buf + len, "%shiddev%d", len ? "," : "", 1538 hdev->minor); 1539 if (hdev->claimed & HID_CLAIMED_HIDRAW) 1540 len += sprintf(buf + len, "%shidraw%d", len ? "," : "", 1541 ((struct hidraw *)hdev->hidraw)->minor); 1542 1543 type = "Device"; 1544 for (i = 0; i < hdev->maxcollection; i++) { 1545 struct hid_collection *col = &hdev->collection[i]; 1546 if (col->type == HID_COLLECTION_APPLICATION && 1547 (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK && 1548 (col->usage & 0xffff) < ARRAY_SIZE(types)) { 1549 type = types[col->usage & 0xffff]; 1550 break; 1551 } 1552 } 1553 1554 switch (hdev->bus) { 1555 case BUS_USB: 1556 bus = "USB"; 1557 break; 1558 case BUS_BLUETOOTH: 1559 bus = "BLUETOOTH"; 1560 break; 1561 default: 1562 bus = "<UNKNOWN>"; 1563 } 1564 1565 ret = device_create_bin_file(&hdev->dev, &dev_bin_attr_report_desc); 1566 if (ret) 1567 hid_warn(hdev, 1568 "can't create sysfs report descriptor attribute err: %d\n", ret); 1569 1570 hid_info(hdev, "%s: %s HID v%x.%02x %s [%s] on %s\n", 1571 buf, bus, hdev->version >> 8, hdev->version & 0xff, 1572 type, hdev->name, hdev->phys); 1573 1574 return 0; 1575 } 1576 EXPORT_SYMBOL_GPL(hid_connect); 1577 1578 void hid_disconnect(struct hid_device *hdev) 1579 { 1580 device_remove_bin_file(&hdev->dev, &dev_bin_attr_report_desc); 1581 if (hdev->claimed & HID_CLAIMED_INPUT) 1582 hidinput_disconnect(hdev); 1583 if (hdev->claimed & HID_CLAIMED_HIDDEV) 1584 hdev->hiddev_disconnect(hdev); 1585 if (hdev->claimed & HID_CLAIMED_HIDRAW) 1586 hidraw_disconnect(hdev); 1587 } 1588 EXPORT_SYMBOL_GPL(hid_disconnect); 1589 1590 /* 1591 * A list of devices for which there is a specialized driver on HID bus. 1592 * 1593 * Please note that for multitouch devices (driven by hid-multitouch driver), 1594 * there is a proper autodetection and autoloading in place (based on presence 1595 * of HID_DG_CONTACTID), so those devices don't need to be added to this list, 1596 * as we are doing the right thing in hid_scan_usage(). 1597 * 1598 * Autodetection for (USB) HID sensor hubs exists too. If a collection of type 1599 * physical is found inside a usage page of type sensor, hid-sensor-hub will be 1600 * used as a driver. See hid_scan_report(). 1601 */ 1602 static const struct hid_device_id hid_have_special_driver[] = { 1603 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) }, 1604 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) }, 1605 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) }, 1606 { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) }, 1607 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) }, 1608 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) }, 1609 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) }, 1610 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) }, 1611 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) }, 1612 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) }, 1613 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) }, 1614 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) }, 1615 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) }, 1616 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) }, 1617 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) }, 1618 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) }, 1619 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) }, 1620 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) }, 1621 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) }, 1622 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) }, 1623 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) }, 1624 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) }, 1625 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) }, 1626 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) }, 1627 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) }, 1628 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) }, 1629 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) }, 1630 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL) }, 1631 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL2) }, 1632 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL3) }, 1633 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) }, 1634 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL5) }, 1635 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) }, 1636 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) }, 1637 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) }, 1638 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) }, 1639 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) }, 1640 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) }, 1641 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) }, 1642 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) }, 1643 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) }, 1644 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) }, 1645 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) }, 1646 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) }, 1647 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) }, 1648 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) }, 1649 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) }, 1650 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) }, 1651 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) }, 1652 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) }, 1653 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) }, 1654 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) }, 1655 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) }, 1656 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) }, 1657 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) }, 1658 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) }, 1659 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ANSI) }, 1660 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ISO) }, 1661 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_JIS) }, 1662 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) }, 1663 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) }, 1664 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) }, 1665 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) }, 1666 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) }, 1667 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) }, 1668 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) }, 1669 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) }, 1670 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) }, 1671 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) }, 1672 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) }, 1673 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) }, 1674 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI) }, 1675 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO) }, 1676 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS) }, 1677 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) }, 1678 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) }, 1679 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) }, 1680 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI) }, 1681 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO) }, 1682 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) }, 1683 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) }, 1684 { HID_USB_DEVICE(USB_VENDOR_ID_AUREAL, USB_DEVICE_ID_AUREAL_W01RN) }, 1685 { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) }, 1686 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) }, 1687 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) }, 1688 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) }, 1689 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) }, 1690 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) }, 1691 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS) }, 1692 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) }, 1693 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_AK1D) }, 1694 { HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) }, 1695 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) }, 1696 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) }, 1697 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) }, 1698 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_4) }, 1699 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) }, 1700 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) }, 1701 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011) }, 1702 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) }, 1703 { HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0009) }, 1704 { HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0030) }, 1705 { HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) }, 1706 { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) }, 1707 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) }, 1708 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) }, 1709 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) }, 1710 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) }, 1711 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) }, 1712 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) }, 1713 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) }, 1714 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) }, 1715 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) }, 1716 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A) }, 1717 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067) }, 1718 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081) }, 1719 { HID_USB_DEVICE(USB_VENDOR_ID_HUION, USB_DEVICE_ID_HUION_580) }, 1720 { HID_USB_DEVICE(USB_VENDOR_ID_JESS2, USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD) }, 1721 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ION, USB_DEVICE_ID_ICADE) }, 1722 { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) }, 1723 { HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) }, 1724 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GILA_GAMING_MOUSE) }, 1725 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GX_IMPERATOR) }, 1726 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) }, 1727 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_I405X) }, 1728 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X) }, 1729 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X) }, 1730 { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) }, 1731 { HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) }, 1732 #if IS_ENABLED(CONFIG_HID_LENOVO_TPKBD) 1733 { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) }, 1734 #endif 1735 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) }, 1736 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) }, 1737 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) }, 1738 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) }, 1739 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_PS3) }, 1740 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) }, 1741 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) }, 1742 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) }, 1743 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) }, 1744 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) }, 1745 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) }, 1746 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) }, 1747 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) }, 1748 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) }, 1749 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) }, 1750 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) }, 1751 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) }, 1752 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) }, 1753 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) }, 1754 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) }, 1755 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) }, 1756 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFP_WHEEL) }, 1757 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFGT_WHEEL) }, 1758 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) }, 1759 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G27_WHEEL) }, 1760 #if IS_ENABLED(CONFIG_HID_LOGITECH_DJ) 1761 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER) }, 1762 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2) }, 1763 #endif 1764 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) }, 1765 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) }, 1766 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) }, 1767 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) }, 1768 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) }, 1769 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) }, 1770 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500) }, 1771 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) }, 1772 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) }, 1773 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K_JP) }, 1774 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) }, 1775 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) }, 1776 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K) }, 1777 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) }, 1778 { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) }, 1779 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) }, 1780 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) }, 1781 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) }, 1782 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) }, 1783 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) }, 1784 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) }, 1785 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) }, 1786 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) }, 1787 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) }, 1788 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) }, 1789 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) }, 1790 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) }, 1791 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) }, 1792 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) }, 1793 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) }, 1794 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) }, 1795 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) }, 1796 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) }, 1797 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) }, 1798 { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) }, 1799 { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) }, 1800 { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) }, 1801 { HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_KEYBOARD) }, 1802 #if IS_ENABLED(CONFIG_HID_ROCCAT) 1803 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) }, 1804 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) }, 1805 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) }, 1806 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) }, 1807 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE) }, 1808 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE_OPTICAL) }, 1809 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) }, 1810 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_LUA) }, 1811 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) }, 1812 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) }, 1813 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_SAVU) }, 1814 #endif 1815 { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000) }, 1816 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) }, 1817 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) }, 1818 { HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) }, 1819 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_BUZZ_CONTROLLER) }, 1820 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_WIRELESS_BUZZ_CONTROLLER) }, 1821 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_BDREMOTE) }, 1822 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) }, 1823 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER) }, 1824 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) }, 1825 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) }, 1826 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGP_MOUSE) }, 1827 { HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, USB_DEVICE_ID_STEELSERIES_SRWS1) }, 1828 { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) }, 1829 { HID_USB_DEVICE(USB_VENDOR_ID_THINGM, USB_DEVICE_ID_BLINK1) }, 1830 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) }, 1831 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) }, 1832 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) }, 1833 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) }, 1834 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) }, 1835 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) }, 1836 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) }, 1837 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) }, 1838 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) }, 1839 { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) }, 1840 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) }, 1841 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) }, 1842 { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) }, 1843 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) }, 1844 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) }, 1845 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) }, 1846 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) }, 1847 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP1062) }, 1848 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_WIRELESS_TABLET_TWHL850) }, 1849 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_TWHA60) }, 1850 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) }, 1851 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SUPER_JOY_BOX_3) }, 1852 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD) }, 1853 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO) }, 1854 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO) }, 1855 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO) }, 1856 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) }, 1857 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) }, 1858 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) }, 1859 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) }, 1860 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_Q_PAD) }, 1861 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_PID_0038) }, 1862 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) }, 1863 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) }, 1864 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET) }, 1865 { HID_USB_DEVICE(USB_VENDOR_ID_X_TENSIONS, USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE) }, 1866 { HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_XIN_MO_DUAL_ARCADE) }, 1867 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) }, 1868 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) }, 1869 { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) }, 1870 1871 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) }, 1872 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) }, 1873 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE2) }, 1874 { } 1875 }; 1876 1877 struct hid_dynid { 1878 struct list_head list; 1879 struct hid_device_id id; 1880 }; 1881 1882 /** 1883 * store_new_id - add a new HID device ID to this driver and re-probe devices 1884 * @driver: target device driver 1885 * @buf: buffer for scanning device ID data 1886 * @count: input size 1887 * 1888 * Adds a new dynamic hid device ID to this driver, 1889 * and causes the driver to probe for all devices again. 1890 */ 1891 static ssize_t store_new_id(struct device_driver *drv, const char *buf, 1892 size_t count) 1893 { 1894 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver); 1895 struct hid_dynid *dynid; 1896 __u32 bus, vendor, product; 1897 unsigned long driver_data = 0; 1898 int ret; 1899 1900 ret = sscanf(buf, "%x %x %x %lx", 1901 &bus, &vendor, &product, &driver_data); 1902 if (ret < 3) 1903 return -EINVAL; 1904 1905 dynid = kzalloc(sizeof(*dynid), GFP_KERNEL); 1906 if (!dynid) 1907 return -ENOMEM; 1908 1909 dynid->id.bus = bus; 1910 dynid->id.group = HID_GROUP_ANY; 1911 dynid->id.vendor = vendor; 1912 dynid->id.product = product; 1913 dynid->id.driver_data = driver_data; 1914 1915 spin_lock(&hdrv->dyn_lock); 1916 list_add_tail(&dynid->list, &hdrv->dyn_list); 1917 spin_unlock(&hdrv->dyn_lock); 1918 1919 ret = driver_attach(&hdrv->driver); 1920 1921 return ret ? : count; 1922 } 1923 static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id); 1924 1925 static void hid_free_dynids(struct hid_driver *hdrv) 1926 { 1927 struct hid_dynid *dynid, *n; 1928 1929 spin_lock(&hdrv->dyn_lock); 1930 list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) { 1931 list_del(&dynid->list); 1932 kfree(dynid); 1933 } 1934 spin_unlock(&hdrv->dyn_lock); 1935 } 1936 1937 static const struct hid_device_id *hid_match_device(struct hid_device *hdev, 1938 struct hid_driver *hdrv) 1939 { 1940 struct hid_dynid *dynid; 1941 1942 spin_lock(&hdrv->dyn_lock); 1943 list_for_each_entry(dynid, &hdrv->dyn_list, list) { 1944 if (hid_match_one_id(hdev, &dynid->id)) { 1945 spin_unlock(&hdrv->dyn_lock); 1946 return &dynid->id; 1947 } 1948 } 1949 spin_unlock(&hdrv->dyn_lock); 1950 1951 return hid_match_id(hdev, hdrv->id_table); 1952 } 1953 1954 static int hid_bus_match(struct device *dev, struct device_driver *drv) 1955 { 1956 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver); 1957 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 1958 1959 return hid_match_device(hdev, hdrv) != NULL; 1960 } 1961 1962 static int hid_device_probe(struct device *dev) 1963 { 1964 struct hid_driver *hdrv = container_of(dev->driver, 1965 struct hid_driver, driver); 1966 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 1967 const struct hid_device_id *id; 1968 int ret = 0; 1969 1970 if (down_interruptible(&hdev->driver_lock)) 1971 return -EINTR; 1972 if (down_interruptible(&hdev->driver_input_lock)) { 1973 ret = -EINTR; 1974 goto unlock_driver_lock; 1975 } 1976 hdev->io_started = false; 1977 1978 if (!hdev->driver) { 1979 id = hid_match_device(hdev, hdrv); 1980 if (id == NULL) { 1981 ret = -ENODEV; 1982 goto unlock; 1983 } 1984 1985 hdev->driver = hdrv; 1986 if (hdrv->probe) { 1987 ret = hdrv->probe(hdev, id); 1988 } else { /* default probe */ 1989 ret = hid_open_report(hdev); 1990 if (!ret) 1991 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); 1992 } 1993 if (ret) { 1994 hid_close_report(hdev); 1995 hdev->driver = NULL; 1996 } 1997 } 1998 unlock: 1999 if (!hdev->io_started) 2000 up(&hdev->driver_input_lock); 2001 unlock_driver_lock: 2002 up(&hdev->driver_lock); 2003 return ret; 2004 } 2005 2006 static int hid_device_remove(struct device *dev) 2007 { 2008 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 2009 struct hid_driver *hdrv; 2010 int ret = 0; 2011 2012 if (down_interruptible(&hdev->driver_lock)) 2013 return -EINTR; 2014 if (down_interruptible(&hdev->driver_input_lock)) { 2015 ret = -EINTR; 2016 goto unlock_driver_lock; 2017 } 2018 hdev->io_started = false; 2019 2020 hdrv = hdev->driver; 2021 if (hdrv) { 2022 if (hdrv->remove) 2023 hdrv->remove(hdev); 2024 else /* default remove */ 2025 hid_hw_stop(hdev); 2026 hid_close_report(hdev); 2027 hdev->driver = NULL; 2028 } 2029 2030 if (!hdev->io_started) 2031 up(&hdev->driver_input_lock); 2032 unlock_driver_lock: 2033 up(&hdev->driver_lock); 2034 return ret; 2035 } 2036 2037 static ssize_t modalias_show(struct device *dev, struct device_attribute *a, 2038 char *buf) 2039 { 2040 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 2041 int len; 2042 2043 len = snprintf(buf, PAGE_SIZE, "hid:b%04Xg%04Xv%08Xp%08X\n", 2044 hdev->bus, hdev->group, hdev->vendor, hdev->product); 2045 2046 return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len; 2047 } 2048 static DEVICE_ATTR_RO(modalias); 2049 2050 static struct attribute *hid_dev_attrs[] = { 2051 &dev_attr_modalias.attr, 2052 NULL, 2053 }; 2054 ATTRIBUTE_GROUPS(hid_dev); 2055 2056 static int hid_uevent(struct device *dev, struct kobj_uevent_env *env) 2057 { 2058 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 2059 2060 if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X", 2061 hdev->bus, hdev->vendor, hdev->product)) 2062 return -ENOMEM; 2063 2064 if (add_uevent_var(env, "HID_NAME=%s", hdev->name)) 2065 return -ENOMEM; 2066 2067 if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys)) 2068 return -ENOMEM; 2069 2070 if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq)) 2071 return -ENOMEM; 2072 2073 if (add_uevent_var(env, "MODALIAS=hid:b%04Xg%04Xv%08Xp%08X", 2074 hdev->bus, hdev->group, hdev->vendor, hdev->product)) 2075 return -ENOMEM; 2076 2077 return 0; 2078 } 2079 2080 static struct bus_type hid_bus_type = { 2081 .name = "hid", 2082 .dev_groups = hid_dev_groups, 2083 .match = hid_bus_match, 2084 .probe = hid_device_probe, 2085 .remove = hid_device_remove, 2086 .uevent = hid_uevent, 2087 }; 2088 2089 /* a list of devices that shouldn't be handled by HID core at all */ 2090 static const struct hid_device_id hid_ignore_list[] = { 2091 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) }, 2092 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) }, 2093 { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) }, 2094 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) }, 2095 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) }, 2096 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) }, 2097 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) }, 2098 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) }, 2099 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) }, 2100 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) }, 2101 { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) }, 2102 { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) }, 2103 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)}, 2104 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)}, 2105 { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) }, 2106 { HID_USB_DEVICE(USB_VENDOR_ID_AXENTIA, USB_DEVICE_ID_AXENTIA_FM_RADIO) }, 2107 { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) }, 2108 { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) }, 2109 { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) }, 2110 { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) }, 2111 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) }, 2112 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) }, 2113 { HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) }, 2114 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) }, 2115 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) }, 2116 { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x0004) }, 2117 { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x000a) }, 2118 { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) }, 2119 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) }, 2120 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) }, 2121 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) }, 2122 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) }, 2123 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) }, 2124 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) }, 2125 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) }, 2126 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) }, 2127 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) }, 2128 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) }, 2129 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) }, 2130 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) }, 2131 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) }, 2132 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) }, 2133 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) }, 2134 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) }, 2135 { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) }, 2136 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) }, 2137 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) }, 2138 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_RADIOSHARK) }, 2139 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) }, 2140 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) }, 2141 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) }, 2142 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) }, 2143 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) }, 2144 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) }, 2145 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) }, 2146 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) }, 2147 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) }, 2148 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) }, 2149 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) }, 2150 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) }, 2151 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) }, 2152 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) }, 2153 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) }, 2154 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) }, 2155 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) }, 2156 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) }, 2157 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) }, 2158 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) }, 2159 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) }, 2160 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) }, 2161 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) }, 2162 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) }, 2163 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) }, 2164 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) }, 2165 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) }, 2166 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) }, 2167 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) }, 2168 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) }, 2169 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) }, 2170 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) }, 2171 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) }, 2172 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) }, 2173 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) }, 2174 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) }, 2175 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) }, 2176 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) }, 2177 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) }, 2178 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) }, 2179 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) }, 2180 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) }, 2181 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) }, 2182 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) }, 2183 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) }, 2184 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) }, 2185 { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) }, 2186 { HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_SPEAK_410) }, 2187 { HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_SPEAK_510) }, 2188 { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) }, 2189 { HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) }, 2190 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) }, 2191 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) }, 2192 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) }, 2193 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY2) }, 2194 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) }, 2195 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY2) }, 2196 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) }, 2197 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY2) }, 2198 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYVOLTAGE) }, 2199 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYCURRENT) }, 2200 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTIME) }, 2201 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTEMPERATURE) }, 2202 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYPH) }, 2203 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) }, 2204 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) }, 2205 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) }, 2206 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIC) }, 2207 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIB) }, 2208 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY) }, 2209 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) }, 2210 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) }, 2211 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOTOR) }, 2212 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) }, 2213 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) }, 2214 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) }, 2215 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) }, 2216 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) }, 2217 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER) }, 2218 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER2) }, 2219 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_ABSESP) }, 2220 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_AUTODATABUS) }, 2221 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MCT) }, 2222 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HYBRID) }, 2223 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HEATCONTROL) }, 2224 { HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_BEATPAD) }, 2225 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) }, 2226 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) }, 2227 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) }, 2228 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) }, 2229 { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) }, 2230 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) }, 2231 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) }, 2232 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) }, 2233 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) }, 2234 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) }, 2235 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) }, 2236 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) }, 2237 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) }, 2238 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) }, 2239 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) }, 2240 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) }, 2241 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) }, 2242 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) }, 2243 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) }, 2244 { HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) }, 2245 { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) }, 2246 #if defined(CONFIG_MOUSE_SYNAPTICS_USB) || defined(CONFIG_MOUSE_SYNAPTICS_USB_MODULE) 2247 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_TP) }, 2248 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_INT_TP) }, 2249 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_CPAD) }, 2250 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_STICK) }, 2251 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WP) }, 2252 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_COMP_TP) }, 2253 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WTP) }, 2254 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_DPAD) }, 2255 #endif 2256 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) }, 2257 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) }, 2258 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) }, 2259 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) }, 2260 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) }, 2261 { HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) }, 2262 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) }, 2263 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) }, 2264 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) }, 2265 { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) }, 2266 { } 2267 }; 2268 2269 /** 2270 * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer 2271 * 2272 * There are composite devices for which we want to ignore only a certain 2273 * interface. This is a list of devices for which only the mouse interface will 2274 * be ignored. This allows a dedicated driver to take care of the interface. 2275 */ 2276 static const struct hid_device_id hid_mouse_ignore_list[] = { 2277 /* appletouch driver */ 2278 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) }, 2279 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) }, 2280 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) }, 2281 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) }, 2282 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) }, 2283 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) }, 2284 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) }, 2285 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) }, 2286 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) }, 2287 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) }, 2288 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) }, 2289 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) }, 2290 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) }, 2291 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) }, 2292 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) }, 2293 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) }, 2294 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) }, 2295 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) }, 2296 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) }, 2297 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) }, 2298 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) }, 2299 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) }, 2300 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) }, 2301 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) }, 2302 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) }, 2303 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) }, 2304 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) }, 2305 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) }, 2306 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) }, 2307 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) }, 2308 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) }, 2309 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) }, 2310 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) }, 2311 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) }, 2312 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) }, 2313 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) }, 2314 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) }, 2315 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) }, 2316 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) }, 2317 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) }, 2318 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) }, 2319 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) }, 2320 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) }, 2321 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) }, 2322 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) }, 2323 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) }, 2324 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) }, 2325 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI) }, 2326 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO) }, 2327 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS) }, 2328 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) }, 2329 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) }, 2330 { } 2331 }; 2332 2333 bool hid_ignore(struct hid_device *hdev) 2334 { 2335 if (hdev->quirks & HID_QUIRK_NO_IGNORE) 2336 return false; 2337 if (hdev->quirks & HID_QUIRK_IGNORE) 2338 return true; 2339 2340 switch (hdev->vendor) { 2341 case USB_VENDOR_ID_CODEMERCS: 2342 /* ignore all Code Mercenaries IOWarrior devices */ 2343 if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST && 2344 hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST) 2345 return true; 2346 break; 2347 case USB_VENDOR_ID_LOGITECH: 2348 if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST && 2349 hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST) 2350 return true; 2351 /* 2352 * The Keene FM transmitter USB device has the same USB ID as 2353 * the Logitech AudioHub Speaker, but it should ignore the hid. 2354 * Check if the name is that of the Keene device. 2355 * For reference: the name of the AudioHub is 2356 * "HOLTEK AudioHub Speaker". 2357 */ 2358 if (hdev->product == USB_DEVICE_ID_LOGITECH_AUDIOHUB && 2359 !strcmp(hdev->name, "HOLTEK B-LINK USB Audio ")) 2360 return true; 2361 break; 2362 case USB_VENDOR_ID_SOUNDGRAPH: 2363 if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST && 2364 hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST) 2365 return true; 2366 break; 2367 case USB_VENDOR_ID_HANWANG: 2368 if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST && 2369 hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST) 2370 return true; 2371 break; 2372 case USB_VENDOR_ID_JESS: 2373 if (hdev->product == USB_DEVICE_ID_JESS_YUREX && 2374 hdev->type == HID_TYPE_USBNONE) 2375 return true; 2376 break; 2377 case USB_VENDOR_ID_DWAV: 2378 /* These are handled by usbtouchscreen. hdev->type is probably 2379 * HID_TYPE_USBNONE, but we say !HID_TYPE_USBMOUSE to match 2380 * usbtouchscreen. */ 2381 if ((hdev->product == USB_DEVICE_ID_EGALAX_TOUCHCONTROLLER || 2382 hdev->product == USB_DEVICE_ID_DWAV_TOUCHCONTROLLER) && 2383 hdev->type != HID_TYPE_USBMOUSE) 2384 return true; 2385 break; 2386 case USB_VENDOR_ID_VELLEMAN: 2387 /* These are not HID devices. They are handled by comedi. */ 2388 if ((hdev->product >= USB_DEVICE_ID_VELLEMAN_K8055_FIRST && 2389 hdev->product <= USB_DEVICE_ID_VELLEMAN_K8055_LAST) || 2390 (hdev->product >= USB_DEVICE_ID_VELLEMAN_K8061_FIRST && 2391 hdev->product <= USB_DEVICE_ID_VELLEMAN_K8061_LAST)) 2392 return true; 2393 break; 2394 case USB_VENDOR_ID_ATMEL_V_USB: 2395 /* Masterkit MA901 usb radio based on Atmel tiny85 chip and 2396 * it has the same USB ID as many Atmel V-USB devices. This 2397 * usb radio is handled by radio-ma901.c driver so we want 2398 * ignore the hid. Check the name, bus, product and ignore 2399 * if we have MA901 usb radio. 2400 */ 2401 if (hdev->product == USB_DEVICE_ID_ATMEL_V_USB && 2402 hdev->bus == BUS_USB && 2403 strncmp(hdev->name, "www.masterkit.ru MA901", 22) == 0) 2404 return true; 2405 break; 2406 } 2407 2408 if (hdev->type == HID_TYPE_USBMOUSE && 2409 hid_match_id(hdev, hid_mouse_ignore_list)) 2410 return true; 2411 2412 return !!hid_match_id(hdev, hid_ignore_list); 2413 } 2414 EXPORT_SYMBOL_GPL(hid_ignore); 2415 2416 int hid_add_device(struct hid_device *hdev) 2417 { 2418 static atomic_t id = ATOMIC_INIT(0); 2419 int ret; 2420 2421 if (WARN_ON(hdev->status & HID_STAT_ADDED)) 2422 return -EBUSY; 2423 2424 /* we need to kill them here, otherwise they will stay allocated to 2425 * wait for coming driver */ 2426 if (hid_ignore(hdev)) 2427 return -ENODEV; 2428 2429 /* 2430 * Read the device report descriptor once and use as template 2431 * for the driver-specific modifications. 2432 */ 2433 ret = hdev->ll_driver->parse(hdev); 2434 if (ret) 2435 return ret; 2436 if (!hdev->dev_rdesc) 2437 return -ENODEV; 2438 2439 /* 2440 * Scan generic devices for group information 2441 */ 2442 if (hid_ignore_special_drivers || 2443 !hid_match_id(hdev, hid_have_special_driver)) { 2444 ret = hid_scan_report(hdev); 2445 if (ret) 2446 hid_warn(hdev, "bad device descriptor (%d)\n", ret); 2447 } 2448 2449 /* XXX hack, any other cleaner solution after the driver core 2450 * is converted to allow more than 20 bytes as the device name? */ 2451 dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus, 2452 hdev->vendor, hdev->product, atomic_inc_return(&id)); 2453 2454 hid_debug_register(hdev, dev_name(&hdev->dev)); 2455 ret = device_add(&hdev->dev); 2456 if (!ret) 2457 hdev->status |= HID_STAT_ADDED; 2458 else 2459 hid_debug_unregister(hdev); 2460 2461 return ret; 2462 } 2463 EXPORT_SYMBOL_GPL(hid_add_device); 2464 2465 /** 2466 * hid_allocate_device - allocate new hid device descriptor 2467 * 2468 * Allocate and initialize hid device, so that hid_destroy_device might be 2469 * used to free it. 2470 * 2471 * New hid_device pointer is returned on success, otherwise ERR_PTR encoded 2472 * error value. 2473 */ 2474 struct hid_device *hid_allocate_device(void) 2475 { 2476 struct hid_device *hdev; 2477 int ret = -ENOMEM; 2478 2479 hdev = kzalloc(sizeof(*hdev), GFP_KERNEL); 2480 if (hdev == NULL) 2481 return ERR_PTR(ret); 2482 2483 device_initialize(&hdev->dev); 2484 hdev->dev.release = hid_device_release; 2485 hdev->dev.bus = &hid_bus_type; 2486 2487 hid_close_report(hdev); 2488 2489 init_waitqueue_head(&hdev->debug_wait); 2490 INIT_LIST_HEAD(&hdev->debug_list); 2491 spin_lock_init(&hdev->debug_list_lock); 2492 sema_init(&hdev->driver_lock, 1); 2493 sema_init(&hdev->driver_input_lock, 1); 2494 2495 return hdev; 2496 } 2497 EXPORT_SYMBOL_GPL(hid_allocate_device); 2498 2499 static void hid_remove_device(struct hid_device *hdev) 2500 { 2501 if (hdev->status & HID_STAT_ADDED) { 2502 device_del(&hdev->dev); 2503 hid_debug_unregister(hdev); 2504 hdev->status &= ~HID_STAT_ADDED; 2505 } 2506 kfree(hdev->dev_rdesc); 2507 hdev->dev_rdesc = NULL; 2508 hdev->dev_rsize = 0; 2509 } 2510 2511 /** 2512 * hid_destroy_device - free previously allocated device 2513 * 2514 * @hdev: hid device 2515 * 2516 * If you allocate hid_device through hid_allocate_device, you should ever 2517 * free by this function. 2518 */ 2519 void hid_destroy_device(struct hid_device *hdev) 2520 { 2521 hid_remove_device(hdev); 2522 put_device(&hdev->dev); 2523 } 2524 EXPORT_SYMBOL_GPL(hid_destroy_device); 2525 2526 int __hid_register_driver(struct hid_driver *hdrv, struct module *owner, 2527 const char *mod_name) 2528 { 2529 int ret; 2530 2531 hdrv->driver.name = hdrv->name; 2532 hdrv->driver.bus = &hid_bus_type; 2533 hdrv->driver.owner = owner; 2534 hdrv->driver.mod_name = mod_name; 2535 2536 INIT_LIST_HEAD(&hdrv->dyn_list); 2537 spin_lock_init(&hdrv->dyn_lock); 2538 2539 ret = driver_register(&hdrv->driver); 2540 if (ret) 2541 return ret; 2542 2543 ret = driver_create_file(&hdrv->driver, &driver_attr_new_id); 2544 if (ret) 2545 driver_unregister(&hdrv->driver); 2546 2547 return ret; 2548 } 2549 EXPORT_SYMBOL_GPL(__hid_register_driver); 2550 2551 void hid_unregister_driver(struct hid_driver *hdrv) 2552 { 2553 driver_remove_file(&hdrv->driver, &driver_attr_new_id); 2554 driver_unregister(&hdrv->driver); 2555 hid_free_dynids(hdrv); 2556 } 2557 EXPORT_SYMBOL_GPL(hid_unregister_driver); 2558 2559 int hid_check_keys_pressed(struct hid_device *hid) 2560 { 2561 struct hid_input *hidinput; 2562 int i; 2563 2564 if (!(hid->claimed & HID_CLAIMED_INPUT)) 2565 return 0; 2566 2567 list_for_each_entry(hidinput, &hid->inputs, list) { 2568 for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++) 2569 if (hidinput->input->key[i]) 2570 return 1; 2571 } 2572 2573 return 0; 2574 } 2575 2576 EXPORT_SYMBOL_GPL(hid_check_keys_pressed); 2577 2578 static int __init hid_init(void) 2579 { 2580 int ret; 2581 2582 if (hid_debug) 2583 pr_warn("hid_debug is now used solely for parser and driver debugging.\n" 2584 "debugfs is now used for inspecting the device (report descriptor, reports)\n"); 2585 2586 ret = bus_register(&hid_bus_type); 2587 if (ret) { 2588 pr_err("can't register hid bus\n"); 2589 goto err; 2590 } 2591 2592 ret = hidraw_init(); 2593 if (ret) 2594 goto err_bus; 2595 2596 hid_debug_init(); 2597 2598 return 0; 2599 err_bus: 2600 bus_unregister(&hid_bus_type); 2601 err: 2602 return ret; 2603 } 2604 2605 static void __exit hid_exit(void) 2606 { 2607 hid_debug_exit(); 2608 hidraw_exit(); 2609 bus_unregister(&hid_bus_type); 2610 } 2611 2612 module_init(hid_init); 2613 module_exit(hid_exit); 2614 2615 MODULE_AUTHOR("Andreas Gal"); 2616 MODULE_AUTHOR("Vojtech Pavlik"); 2617 MODULE_AUTHOR("Jiri Kosina"); 2618 MODULE_LICENSE(DRIVER_LICENSE); 2619 2620