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