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[GitHub/mt8127/android_kernel_alcatel_ttab.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
98 if (report->maxfield == HID_MAX_FIELDS) {
99 hid_err(report->device, "too many fields in report\n");
100 return NULL;
101 }
102
103 field = kzalloc((sizeof(struct hid_field) +
104 usages * sizeof(struct hid_usage) +
105 values * sizeof(unsigned)), GFP_KERNEL);
106 if (!field)
107 return NULL;
108
109 field->index = report->maxfield++;
110 report->field[field->index] = field;
111 field->usage = (struct hid_usage *)(field + 1);
112 field->value = (s32 *)(field->usage + usages);
113 field->report = report;
114
115 return field;
116 }
117
118 /*
119 * Open a collection. The type/usage is pushed on the stack.
120 */
121
122 static int open_collection(struct hid_parser *parser, unsigned type)
123 {
124 struct hid_collection *collection;
125 unsigned usage;
126
127 usage = parser->local.usage[0];
128
129 if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) {
130 hid_err(parser->device, "collection stack overflow\n");
131 return -EINVAL;
132 }
133
134 if (parser->device->maxcollection == parser->device->collection_size) {
135 collection = kmalloc(sizeof(struct hid_collection) *
136 parser->device->collection_size * 2, GFP_KERNEL);
137 if (collection == NULL) {
138 hid_err(parser->device, "failed to reallocate collection array\n");
139 return -ENOMEM;
140 }
141 memcpy(collection, parser->device->collection,
142 sizeof(struct hid_collection) *
143 parser->device->collection_size);
144 memset(collection + parser->device->collection_size, 0,
145 sizeof(struct hid_collection) *
146 parser->device->collection_size);
147 kfree(parser->device->collection);
148 parser->device->collection = collection;
149 parser->device->collection_size *= 2;
150 }
151
152 parser->collection_stack[parser->collection_stack_ptr++] =
153 parser->device->maxcollection;
154
155 collection = parser->device->collection +
156 parser->device->maxcollection++;
157 collection->type = type;
158 collection->usage = usage;
159 collection->level = parser->collection_stack_ptr - 1;
160
161 if (type == HID_COLLECTION_APPLICATION)
162 parser->device->maxapplication++;
163
164 return 0;
165 }
166
167 /*
168 * Close a collection.
169 */
170
171 static int close_collection(struct hid_parser *parser)
172 {
173 if (!parser->collection_stack_ptr) {
174 hid_err(parser->device, "collection stack underflow\n");
175 return -EINVAL;
176 }
177 parser->collection_stack_ptr--;
178 return 0;
179 }
180
181 /*
182 * Climb up the stack, search for the specified collection type
183 * and return the usage.
184 */
185
186 static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type)
187 {
188 struct hid_collection *collection = parser->device->collection;
189 int n;
190
191 for (n = parser->collection_stack_ptr - 1; n >= 0; n--) {
192 unsigned index = parser->collection_stack[n];
193 if (collection[index].type == type)
194 return collection[index].usage;
195 }
196 return 0; /* we know nothing about this usage type */
197 }
198
199 /*
200 * Add a usage to the temporary parser table.
201 */
202
203 static int hid_add_usage(struct hid_parser *parser, unsigned usage)
204 {
205 if (parser->local.usage_index >= HID_MAX_USAGES) {
206 hid_err(parser->device, "usage index exceeded\n");
207 return -1;
208 }
209 parser->local.usage[parser->local.usage_index] = usage;
210 parser->local.collection_index[parser->local.usage_index] =
211 parser->collection_stack_ptr ?
212 parser->collection_stack[parser->collection_stack_ptr - 1] : 0;
213 parser->local.usage_index++;
214 return 0;
215 }
216
217 /*
218 * Register a new field for this report.
219 */
220
221 static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags)
222 {
223 struct hid_report *report;
224 struct hid_field *field;
225 unsigned usages;
226 unsigned offset;
227 unsigned i;
228
229 report = hid_register_report(parser->device, report_type, parser->global.report_id);
230 if (!report) {
231 hid_err(parser->device, "hid_register_report failed\n");
232 return -1;
233 }
234
235 /* Handle both signed and unsigned cases properly */
236 if ((parser->global.logical_minimum < 0 &&
237 parser->global.logical_maximum <
238 parser->global.logical_minimum) ||
239 (parser->global.logical_minimum >= 0 &&
240 (__u32)parser->global.logical_maximum <
241 (__u32)parser->global.logical_minimum)) {
242 dbg_hid("logical range invalid 0x%x 0x%x\n",
243 parser->global.logical_minimum,
244 parser->global.logical_maximum);
245 return -1;
246 }
247
248 offset = report->size;
249 report->size += parser->global.report_size * parser->global.report_count;
250
251 if (!parser->local.usage_index) /* Ignore padding fields */
252 return 0;
253
254 usages = max_t(unsigned, parser->local.usage_index,
255 parser->global.report_count);
256
257 field = hid_register_field(report, usages, parser->global.report_count);
258 if (!field)
259 return 0;
260
261 field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
262 field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
263 field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
264
265 for (i = 0; i < usages; i++) {
266 unsigned j = i;
267 /* Duplicate the last usage we parsed if we have excess values */
268 if (i >= parser->local.usage_index)
269 j = parser->local.usage_index - 1;
270 field->usage[i].hid = parser->local.usage[j];
271 field->usage[i].collection_index =
272 parser->local.collection_index[j];
273 field->usage[i].usage_index = i;
274 }
275
276 field->maxusage = usages;
277 field->flags = flags;
278 field->report_offset = offset;
279 field->report_type = report_type;
280 field->report_size = parser->global.report_size;
281 field->report_count = parser->global.report_count;
282 field->logical_minimum = parser->global.logical_minimum;
283 field->logical_maximum = parser->global.logical_maximum;
284 field->physical_minimum = parser->global.physical_minimum;
285 field->physical_maximum = parser->global.physical_maximum;
286 field->unit_exponent = parser->global.unit_exponent;
287 field->unit = parser->global.unit;
288
289 return 0;
290 }
291
292 /*
293 * Read data value from item.
294 */
295
296 static u32 item_udata(struct hid_item *item)
297 {
298 switch (item->size) {
299 case 1: return item->data.u8;
300 case 2: return item->data.u16;
301 case 4: return item->data.u32;
302 }
303 return 0;
304 }
305
306 static s32 item_sdata(struct hid_item *item)
307 {
308 switch (item->size) {
309 case 1: return item->data.s8;
310 case 2: return item->data.s16;
311 case 4: return item->data.s32;
312 }
313 return 0;
314 }
315
316 /*
317 * Process a global item.
318 */
319
320 static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
321 {
322 __u32 raw_value;
323 switch (item->tag) {
324 case HID_GLOBAL_ITEM_TAG_PUSH:
325
326 if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
327 hid_err(parser->device, "global environment stack overflow\n");
328 return -1;
329 }
330
331 memcpy(parser->global_stack + parser->global_stack_ptr++,
332 &parser->global, sizeof(struct hid_global));
333 return 0;
334
335 case HID_GLOBAL_ITEM_TAG_POP:
336
337 if (!parser->global_stack_ptr) {
338 hid_err(parser->device, "global environment stack underflow\n");
339 return -1;
340 }
341
342 memcpy(&parser->global, parser->global_stack +
343 --parser->global_stack_ptr, sizeof(struct hid_global));
344 return 0;
345
346 case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
347 parser->global.usage_page = item_udata(item);
348 return 0;
349
350 case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
351 parser->global.logical_minimum = item_sdata(item);
352 return 0;
353
354 case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
355 if (parser->global.logical_minimum < 0)
356 parser->global.logical_maximum = item_sdata(item);
357 else
358 parser->global.logical_maximum = item_udata(item);
359 return 0;
360
361 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
362 parser->global.physical_minimum = item_sdata(item);
363 return 0;
364
365 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
366 if (parser->global.physical_minimum < 0)
367 parser->global.physical_maximum = item_sdata(item);
368 else
369 parser->global.physical_maximum = item_udata(item);
370 return 0;
371
372 case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
373 /* Units exponent negative numbers are given through a
374 * two's complement.
375 * See "6.2.2.7 Global Items" for more information. */
376 raw_value = item_udata(item);
377 if (!(raw_value & 0xfffffff0))
378 parser->global.unit_exponent = hid_snto32(raw_value, 4);
379 else
380 parser->global.unit_exponent = raw_value;
381 return 0;
382
383 case HID_GLOBAL_ITEM_TAG_UNIT:
384 parser->global.unit = item_udata(item);
385 return 0;
386
387 case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
388 parser->global.report_size = item_udata(item);
389 if (parser->global.report_size > 128) {
390 hid_err(parser->device, "invalid report_size %d\n",
391 parser->global.report_size);
392 return -1;
393 }
394 return 0;
395
396 case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
397 parser->global.report_count = item_udata(item);
398 if (parser->global.report_count > HID_MAX_USAGES) {
399 hid_err(parser->device, "invalid report_count %d\n",
400 parser->global.report_count);
401 return -1;
402 }
403 return 0;
404
405 case HID_GLOBAL_ITEM_TAG_REPORT_ID:
406 parser->global.report_id = item_udata(item);
407 if (parser->global.report_id == 0 ||
408 parser->global.report_id >= HID_MAX_IDS) {
409 hid_err(parser->device, "report_id %u is invalid\n",
410 parser->global.report_id);
411 return -1;
412 }
413 return 0;
414
415 default:
416 hid_err(parser->device, "unknown global tag 0x%x\n", item->tag);
417 return -1;
418 }
419 }
420
421 /*
422 * Process a local item.
423 */
424
425 static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
426 {
427 __u32 data;
428 unsigned n;
429
430 data = item_udata(item);
431
432 switch (item->tag) {
433 case HID_LOCAL_ITEM_TAG_DELIMITER:
434
435 if (data) {
436 /*
437 * We treat items before the first delimiter
438 * as global to all usage sets (branch 0).
439 * In the moment we process only these global
440 * items and the first delimiter set.
441 */
442 if (parser->local.delimiter_depth != 0) {
443 hid_err(parser->device, "nested delimiters\n");
444 return -1;
445 }
446 parser->local.delimiter_depth++;
447 parser->local.delimiter_branch++;
448 } else {
449 if (parser->local.delimiter_depth < 1) {
450 hid_err(parser->device, "bogus close delimiter\n");
451 return -1;
452 }
453 parser->local.delimiter_depth--;
454 }
455 return 1;
456
457 case HID_LOCAL_ITEM_TAG_USAGE:
458
459 if (parser->local.delimiter_branch > 1) {
460 dbg_hid("alternative usage ignored\n");
461 return 0;
462 }
463
464 if (item->size <= 2)
465 data = (parser->global.usage_page << 16) + data;
466
467 return hid_add_usage(parser, data);
468
469 case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
470
471 if (parser->local.delimiter_branch > 1) {
472 dbg_hid("alternative usage ignored\n");
473 return 0;
474 }
475
476 if (item->size <= 2)
477 data = (parser->global.usage_page << 16) + data;
478
479 parser->local.usage_minimum = data;
480 return 0;
481
482 case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
483
484 if (parser->local.delimiter_branch > 1) {
485 dbg_hid("alternative usage ignored\n");
486 return 0;
487 }
488
489 if (item->size <= 2)
490 data = (parser->global.usage_page << 16) + data;
491
492 for (n = parser->local.usage_minimum; n <= data; n++)
493 if (hid_add_usage(parser, n)) {
494 dbg_hid("hid_add_usage failed\n");
495 return -1;
496 }
497 return 0;
498
499 default:
500
501 dbg_hid("unknown local item tag 0x%x\n", item->tag);
502 return 0;
503 }
504 return 0;
505 }
506
507 /*
508 * Process a main item.
509 */
510
511 static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
512 {
513 __u32 data;
514 int ret;
515
516 data = item_udata(item);
517
518 switch (item->tag) {
519 case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
520 ret = open_collection(parser, data & 0xff);
521 break;
522 case HID_MAIN_ITEM_TAG_END_COLLECTION:
523 ret = close_collection(parser);
524 break;
525 case HID_MAIN_ITEM_TAG_INPUT:
526 ret = hid_add_field(parser, HID_INPUT_REPORT, data);
527 break;
528 case HID_MAIN_ITEM_TAG_OUTPUT:
529 ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
530 break;
531 case HID_MAIN_ITEM_TAG_FEATURE:
532 ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
533 break;
534 default:
535 hid_err(parser->device, "unknown main item tag 0x%x\n", item->tag);
536 ret = 0;
537 }
538
539 memset(&parser->local, 0, sizeof(parser->local)); /* Reset the local parser environment */
540
541 return ret;
542 }
543
544 /*
545 * Process a reserved item.
546 */
547
548 static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
549 {
550 dbg_hid("reserved item type, tag 0x%x\n", item->tag);
551 return 0;
552 }
553
554 /*
555 * Free a report and all registered fields. The field->usage and
556 * field->value table's are allocated behind the field, so we need
557 * only to free(field) itself.
558 */
559
560 static void hid_free_report(struct hid_report *report)
561 {
562 unsigned n;
563
564 for (n = 0; n < report->maxfield; n++)
565 kfree(report->field[n]);
566 kfree(report);
567 }
568
569 /*
570 * Close report. This function returns the device
571 * state to the point prior to hid_open_report().
572 */
573 static void hid_close_report(struct hid_device *device)
574 {
575 unsigned i, j;
576
577 for (i = 0; i < HID_REPORT_TYPES; i++) {
578 struct hid_report_enum *report_enum = device->report_enum + i;
579
580 for (j = 0; j < HID_MAX_IDS; j++) {
581 struct hid_report *report = report_enum->report_id_hash[j];
582 if (report)
583 hid_free_report(report);
584 }
585 memset(report_enum, 0, sizeof(*report_enum));
586 INIT_LIST_HEAD(&report_enum->report_list);
587 }
588
589 kfree(device->rdesc);
590 device->rdesc = NULL;
591 device->rsize = 0;
592
593 kfree(device->collection);
594 device->collection = NULL;
595 device->collection_size = 0;
596 device->maxcollection = 0;
597 device->maxapplication = 0;
598
599 device->status &= ~HID_STAT_PARSED;
600 }
601
602 /*
603 * Free a device structure, all reports, and all fields.
604 */
605
606 static void hid_device_release(struct device *dev)
607 {
608 struct hid_device *hid = container_of(dev, struct hid_device, dev);
609
610 hid_close_report(hid);
611 kfree(hid->dev_rdesc);
612 kfree(hid);
613 }
614
615 /*
616 * Fetch a report description item from the data stream. We support long
617 * items, though they are not used yet.
618 */
619
620 static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
621 {
622 u8 b;
623
624 if ((end - start) <= 0)
625 return NULL;
626
627 b = *start++;
628
629 item->type = (b >> 2) & 3;
630 item->tag = (b >> 4) & 15;
631
632 if (item->tag == HID_ITEM_TAG_LONG) {
633
634 item->format = HID_ITEM_FORMAT_LONG;
635
636 if ((end - start) < 2)
637 return NULL;
638
639 item->size = *start++;
640 item->tag = *start++;
641
642 if ((end - start) < item->size)
643 return NULL;
644
645 item->data.longdata = start;
646 start += item->size;
647 return start;
648 }
649
650 item->format = HID_ITEM_FORMAT_SHORT;
651 item->size = b & 3;
652
653 switch (item->size) {
654 case 0:
655 return start;
656
657 case 1:
658 if ((end - start) < 1)
659 return NULL;
660 item->data.u8 = *start++;
661 return start;
662
663 case 2:
664 if ((end - start) < 2)
665 return NULL;
666 item->data.u16 = get_unaligned_le16(start);
667 start = (__u8 *)((__le16 *)start + 1);
668 return start;
669
670 case 3:
671 item->size++;
672 if ((end - start) < 4)
673 return NULL;
674 item->data.u32 = get_unaligned_le32(start);
675 start = (__u8 *)((__le32 *)start + 1);
676 return start;
677 }
678
679 return NULL;
680 }
681
682 static void hid_scan_usage(struct hid_device *hid, u32 usage)
683 {
684 if (usage == HID_DG_CONTACTID)
685 hid->group = HID_GROUP_MULTITOUCH;
686 }
687
688 /*
689 * Scan a report descriptor before the device is added to the bus.
690 * Sets device groups and other properties that determine what driver
691 * to load.
692 */
693 static int hid_scan_report(struct hid_device *hid)
694 {
695 unsigned int page = 0, delim = 0;
696 __u8 *start = hid->dev_rdesc;
697 __u8 *end = start + hid->dev_rsize;
698 unsigned int u, u_min = 0, u_max = 0;
699 struct hid_item item;
700
701 hid->group = HID_GROUP_GENERIC;
702 while ((start = fetch_item(start, end, &item)) != NULL) {
703 if (item.format != HID_ITEM_FORMAT_SHORT)
704 return -EINVAL;
705 if (item.type == HID_ITEM_TYPE_GLOBAL) {
706 if (item.tag == HID_GLOBAL_ITEM_TAG_USAGE_PAGE)
707 page = item_udata(&item) << 16;
708 } else if (item.type == HID_ITEM_TYPE_LOCAL) {
709 if (delim > 1)
710 break;
711 u = item_udata(&item);
712 if (item.size <= 2)
713 u += page;
714 switch (item.tag) {
715 case HID_LOCAL_ITEM_TAG_DELIMITER:
716 delim += !!u;
717 break;
718 case HID_LOCAL_ITEM_TAG_USAGE:
719 hid_scan_usage(hid, u);
720 break;
721 case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
722 u_min = u;
723 break;
724 case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
725 u_max = u;
726 for (u = u_min; u <= u_max; u++)
727 hid_scan_usage(hid, u);
728 break;
729 }
730 } else if (page == HID_UP_SENSOR &&
731 item.type == HID_ITEM_TYPE_MAIN &&
732 item.tag == HID_MAIN_ITEM_TAG_BEGIN_COLLECTION &&
733 (item_udata(&item) & 0xff) == HID_COLLECTION_PHYSICAL)
734 hid->group = HID_GROUP_SENSOR_HUB;
735 }
736
737 return 0;
738 }
739
740 /**
741 * hid_parse_report - parse device report
742 *
743 * @device: hid device
744 * @start: report start
745 * @size: report size
746 *
747 * Allocate the device report as read by the bus driver. This function should
748 * only be called from parse() in ll drivers.
749 */
750 int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size)
751 {
752 hid->dev_rdesc = kmemdup(start, size, GFP_KERNEL);
753 if (!hid->dev_rdesc)
754 return -ENOMEM;
755 hid->dev_rsize = size;
756 return 0;
757 }
758 EXPORT_SYMBOL_GPL(hid_parse_report);
759
760 static const char * const hid_report_names[] = {
761 "HID_INPUT_REPORT",
762 "HID_OUTPUT_REPORT",
763 "HID_FEATURE_REPORT",
764 };
765 /**
766 * hid_validate_values - validate existing device report's value indexes
767 *
768 * @device: hid device
769 * @type: which report type to examine
770 * @id: which report ID to examine (0 for first)
771 * @field_index: which report field to examine
772 * @report_counts: expected number of values
773 *
774 * Validate the number of values in a given field of a given report, after
775 * parsing.
776 */
777 struct hid_report *hid_validate_values(struct hid_device *hid,
778 unsigned int type, unsigned int id,
779 unsigned int field_index,
780 unsigned int report_counts)
781 {
782 struct hid_report *report;
783
784 if (type > HID_FEATURE_REPORT) {
785 hid_err(hid, "invalid HID report type %u\n", type);
786 return NULL;
787 }
788
789 if (id >= HID_MAX_IDS) {
790 hid_err(hid, "invalid HID report id %u\n", id);
791 return NULL;
792 }
793
794 /*
795 * Explicitly not using hid_get_report() here since it depends on
796 * ->numbered being checked, which may not always be the case when
797 * drivers go to access report values.
798 */
799 if (id == 0) {
800 /*
801 * Validating on id 0 means we should examine the first
802 * report in the list.
803 */
804 report = list_entry(
805 hid->report_enum[type].report_list.next,
806 struct hid_report, list);
807 } else {
808 report = hid->report_enum[type].report_id_hash[id];
809 }
810 if (!report) {
811 hid_err(hid, "missing %s %u\n", hid_report_names[type], id);
812 return NULL;
813 }
814 if (report->maxfield <= field_index) {
815 hid_err(hid, "not enough fields in %s %u\n",
816 hid_report_names[type], id);
817 return NULL;
818 }
819 if (report->field[field_index]->report_count < report_counts) {
820 hid_err(hid, "not enough values in %s %u field %u\n",
821 hid_report_names[type], id, field_index);
822 return NULL;
823 }
824 return report;
825 }
826 EXPORT_SYMBOL_GPL(hid_validate_values);
827
828 /**
829 * hid_open_report - open a driver-specific device report
830 *
831 * @device: hid device
832 *
833 * Parse a report description into a hid_device structure. Reports are
834 * enumerated, fields are attached to these reports.
835 * 0 returned on success, otherwise nonzero error value.
836 *
837 * This function (or the equivalent hid_parse() macro) should only be
838 * called from probe() in drivers, before starting the device.
839 */
840 int hid_open_report(struct hid_device *device)
841 {
842 struct hid_parser *parser;
843 struct hid_item item;
844 unsigned int size;
845 __u8 *start;
846 __u8 *buf;
847 __u8 *end;
848 int ret;
849 static int (*dispatch_type[])(struct hid_parser *parser,
850 struct hid_item *item) = {
851 hid_parser_main,
852 hid_parser_global,
853 hid_parser_local,
854 hid_parser_reserved
855 };
856
857 if (WARN_ON(device->status & HID_STAT_PARSED))
858 return -EBUSY;
859
860 start = device->dev_rdesc;
861 if (WARN_ON(!start))
862 return -ENODEV;
863 size = device->dev_rsize;
864
865 buf = kmemdup(start, size, GFP_KERNEL);
866 if (buf == NULL)
867 return -ENOMEM;
868
869 if (device->driver->report_fixup)
870 start = device->driver->report_fixup(device, buf, &size);
871 else
872 start = buf;
873
874 start = kmemdup(start, size, GFP_KERNEL);
875 kfree(buf);
876 if (start == NULL)
877 return -ENOMEM;
878
879 device->rdesc = start;
880 device->rsize = size;
881
882 parser = vzalloc(sizeof(struct hid_parser));
883 if (!parser) {
884 ret = -ENOMEM;
885 goto err;
886 }
887
888 parser->device = device;
889
890 end = start + size;
891
892 device->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS,
893 sizeof(struct hid_collection), GFP_KERNEL);
894 if (!device->collection) {
895 ret = -ENOMEM;
896 goto err;
897 }
898 device->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
899
900 ret = -EINVAL;
901 while ((start = fetch_item(start, end, &item)) != NULL) {
902
903 if (item.format != HID_ITEM_FORMAT_SHORT) {
904 hid_err(device, "unexpected long global item\n");
905 goto err;
906 }
907
908 if (dispatch_type[item.type](parser, &item)) {
909 hid_err(device, "item %u %u %u %u parsing failed\n",
910 item.format, (unsigned)item.size,
911 (unsigned)item.type, (unsigned)item.tag);
912 goto err;
913 }
914
915 if (start == end) {
916 if (parser->collection_stack_ptr) {
917 hid_err(device, "unbalanced collection at end of report description\n");
918 goto err;
919 }
920 if (parser->local.delimiter_depth) {
921 hid_err(device, "unbalanced delimiter at end of report description\n");
922 goto err;
923 }
924 vfree(parser);
925 device->status |= HID_STAT_PARSED;
926 return 0;
927 }
928 }
929
930 hid_err(device, "item fetching failed at offset %d\n", (int)(end - start));
931 err:
932 vfree(parser);
933 hid_close_report(device);
934 return ret;
935 }
936 EXPORT_SYMBOL_GPL(hid_open_report);
937
938 /*
939 * Convert a signed n-bit integer to signed 32-bit integer. Common
940 * cases are done through the compiler, the screwed things has to be
941 * done by hand.
942 */
943
944 static s32 snto32(__u32 value, unsigned n)
945 {
946 switch (n) {
947 case 8: return ((__s8)value);
948 case 16: return ((__s16)value);
949 case 32: return ((__s32)value);
950 }
951 return value & (1 << (n - 1)) ? value | (-1 << n) : value;
952 }
953
954 s32 hid_snto32(__u32 value, unsigned n)
955 {
956 return snto32(value, n);
957 }
958 EXPORT_SYMBOL_GPL(hid_snto32);
959
960 /*
961 * Convert a signed 32-bit integer to a signed n-bit integer.
962 */
963
964 static u32 s32ton(__s32 value, unsigned n)
965 {
966 s32 a = value >> (n - 1);
967 if (a && a != -1)
968 return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
969 return value & ((1 << n) - 1);
970 }
971
972 /*
973 * Extract/implement a data field from/to a little endian report (bit array).
974 *
975 * Code sort-of follows HID spec:
976 * http://www.usb.org/developers/devclass_docs/HID1_11.pdf
977 *
978 * While the USB HID spec allows unlimited length bit fields in "report
979 * descriptors", most devices never use more than 16 bits.
980 * One model of UPS is claimed to report "LINEV" as a 32-bit field.
981 * Search linux-kernel and linux-usb-devel archives for "hid-core extract".
982 */
983
984 static __u32 extract(const struct hid_device *hid, __u8 *report,
985 unsigned offset, unsigned n)
986 {
987 u64 x;
988
989 if (n > 32)
990 hid_warn(hid, "extract() called with n (%d) > 32! (%s)\n",
991 n, current->comm);
992
993 report += offset >> 3; /* adjust byte index */
994 offset &= 7; /* now only need bit offset into one byte */
995 x = get_unaligned_le64(report);
996 x = (x >> offset) & ((1ULL << n) - 1); /* extract bit field */
997 return (u32) x;
998 }
999
1000 /*
1001 * "implement" : set bits in a little endian bit stream.
1002 * Same concepts as "extract" (see comments above).
1003 * The data mangled in the bit stream remains in little endian
1004 * order the whole time. It make more sense to talk about
1005 * endianness of register values by considering a register
1006 * a "cached" copy of the little endiad bit stream.
1007 */
1008 static void implement(const struct hid_device *hid, __u8 *report,
1009 unsigned offset, unsigned n, __u32 value)
1010 {
1011 u64 x;
1012 u64 m = (1ULL << n) - 1;
1013
1014 if (n > 32)
1015 hid_warn(hid, "%s() called with n (%d) > 32! (%s)\n",
1016 __func__, n, current->comm);
1017
1018 if (value > m)
1019 hid_warn(hid, "%s() called with too large value %d! (%s)\n",
1020 __func__, value, current->comm);
1021 WARN_ON(value > m);
1022 value &= m;
1023
1024 report += offset >> 3;
1025 offset &= 7;
1026
1027 x = get_unaligned_le64(report);
1028 x &= ~(m << offset);
1029 x |= ((u64)value) << offset;
1030 put_unaligned_le64(x, report);
1031 }
1032
1033 /*
1034 * Search an array for a value.
1035 */
1036
1037 static int search(__s32 *array, __s32 value, unsigned n)
1038 {
1039 while (n--) {
1040 if (*array++ == value)
1041 return 0;
1042 }
1043 return -1;
1044 }
1045
1046 /**
1047 * hid_match_report - check if driver's raw_event should be called
1048 *
1049 * @hid: hid device
1050 * @report_type: type to match against
1051 *
1052 * compare hid->driver->report_table->report_type to report->type
1053 */
1054 static int hid_match_report(struct hid_device *hid, struct hid_report *report)
1055 {
1056 const struct hid_report_id *id = hid->driver->report_table;
1057
1058 if (!id) /* NULL means all */
1059 return 1;
1060
1061 for (; id->report_type != HID_TERMINATOR; id++)
1062 if (id->report_type == HID_ANY_ID ||
1063 id->report_type == report->type)
1064 return 1;
1065 return 0;
1066 }
1067
1068 /**
1069 * hid_match_usage - check if driver's event should be called
1070 *
1071 * @hid: hid device
1072 * @usage: usage to match against
1073 *
1074 * compare hid->driver->usage_table->usage_{type,code} to
1075 * usage->usage_{type,code}
1076 */
1077 static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage)
1078 {
1079 const struct hid_usage_id *id = hid->driver->usage_table;
1080
1081 if (!id) /* NULL means all */
1082 return 1;
1083
1084 for (; id->usage_type != HID_ANY_ID - 1; id++)
1085 if ((id->usage_hid == HID_ANY_ID ||
1086 id->usage_hid == usage->hid) &&
1087 (id->usage_type == HID_ANY_ID ||
1088 id->usage_type == usage->type) &&
1089 (id->usage_code == HID_ANY_ID ||
1090 id->usage_code == usage->code))
1091 return 1;
1092 return 0;
1093 }
1094
1095 static void hid_process_event(struct hid_device *hid, struct hid_field *field,
1096 struct hid_usage *usage, __s32 value, int interrupt)
1097 {
1098 struct hid_driver *hdrv = hid->driver;
1099 int ret;
1100
1101 if (!list_empty(&hid->debug_list))
1102 hid_dump_input(hid, usage, value);
1103
1104 if (hdrv && hdrv->event && hid_match_usage(hid, usage)) {
1105 ret = hdrv->event(hid, field, usage, value);
1106 if (ret != 0) {
1107 if (ret < 0)
1108 hid_err(hid, "%s's event failed with %d\n",
1109 hdrv->name, ret);
1110 return;
1111 }
1112 }
1113
1114 if (hid->claimed & HID_CLAIMED_INPUT)
1115 hidinput_hid_event(hid, field, usage, value);
1116 if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event)
1117 hid->hiddev_hid_event(hid, field, usage, value);
1118 }
1119
1120 /*
1121 * Analyse a received field, and fetch the data from it. The field
1122 * content is stored for next report processing (we do differential
1123 * reporting to the layer).
1124 */
1125
1126 static void hid_input_field(struct hid_device *hid, struct hid_field *field,
1127 __u8 *data, int interrupt)
1128 {
1129 unsigned n;
1130 unsigned count = field->report_count;
1131 unsigned offset = field->report_offset;
1132 unsigned size = field->report_size;
1133 __s32 min = field->logical_minimum;
1134 __s32 max = field->logical_maximum;
1135 __s32 *value;
1136
1137 value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC);
1138 if (!value)
1139 return;
1140
1141 for (n = 0; n < count; n++) {
1142
1143 value[n] = min < 0 ?
1144 snto32(extract(hid, data, offset + n * size, size),
1145 size) :
1146 extract(hid, data, offset + n * size, size);
1147
1148 /* Ignore report if ErrorRollOver */
1149 if (!(field->flags & HID_MAIN_ITEM_VARIABLE) &&
1150 value[n] >= min && value[n] <= max &&
1151 field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
1152 goto exit;
1153 }
1154
1155 for (n = 0; n < count; n++) {
1156
1157 if (HID_MAIN_ITEM_VARIABLE & field->flags) {
1158 hid_process_event(hid, field, &field->usage[n], value[n], interrupt);
1159 continue;
1160 }
1161
1162 if (field->value[n] >= min && field->value[n] <= max
1163 && field->usage[field->value[n] - min].hid
1164 && search(value, field->value[n], count))
1165 hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt);
1166
1167 if (value[n] >= min && value[n] <= max
1168 && field->usage[value[n] - min].hid
1169 && search(field->value, value[n], count))
1170 hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt);
1171 }
1172
1173 memcpy(field->value, value, count * sizeof(__s32));
1174 exit:
1175 kfree(value);
1176 }
1177
1178 /*
1179 * Output the field into the report.
1180 */
1181
1182 static void hid_output_field(const struct hid_device *hid,
1183 struct hid_field *field, __u8 *data)
1184 {
1185 unsigned count = field->report_count;
1186 unsigned offset = field->report_offset;
1187 unsigned size = field->report_size;
1188 unsigned n;
1189
1190 for (n = 0; n < count; n++) {
1191 if (field->logical_minimum < 0) /* signed values */
1192 implement(hid, data, offset + n * size, size,
1193 s32ton(field->value[n], size));
1194 else /* unsigned values */
1195 implement(hid, data, offset + n * size, size,
1196 field->value[n]);
1197 }
1198 }
1199
1200 /*
1201 * Create a report. 'data' has to be allocated using
1202 * hid_alloc_report_buf() so that it has proper size.
1203 */
1204
1205 void hid_output_report(struct hid_report *report, __u8 *data)
1206 {
1207 unsigned n;
1208
1209 if (report->id > 0)
1210 *data++ = report->id;
1211
1212 memset(data, 0, ((report->size - 1) >> 3) + 1);
1213 for (n = 0; n < report->maxfield; n++)
1214 hid_output_field(report->device, report->field[n], data);
1215 }
1216 EXPORT_SYMBOL_GPL(hid_output_report);
1217
1218 /*
1219 * Allocator for buffer that is going to be passed to hid_output_report()
1220 */
1221 u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags)
1222 {
1223 /*
1224 * 7 extra bytes are necessary to achieve proper functionality
1225 * of implement() working on 8 byte chunks
1226 */
1227
1228 int len = ((report->size - 1) >> 3) + 1 + (report->id > 0) + 7;
1229
1230 return kmalloc(len, flags);
1231 }
1232 EXPORT_SYMBOL_GPL(hid_alloc_report_buf);
1233
1234 /*
1235 * Set a field value. The report this field belongs to has to be
1236 * created and transferred to the device, to set this value in the
1237 * device.
1238 */
1239
1240 int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
1241 {
1242 unsigned size;
1243
1244 if (!field)
1245 return -1;
1246
1247 size = field->report_size;
1248
1249 hid_dump_input(field->report->device, field->usage + offset, value);
1250
1251 if (offset >= field->report_count) {
1252 hid_err(field->report->device, "offset (%d) exceeds report_count (%d)\n",
1253 offset, field->report_count);
1254 return -1;
1255 }
1256 if (field->logical_minimum < 0) {
1257 if (value != snto32(s32ton(value, size), size)) {
1258 hid_err(field->report->device, "value %d is out of range\n", value);
1259 return -1;
1260 }
1261 }
1262 field->value[offset] = value;
1263 return 0;
1264 }
1265 EXPORT_SYMBOL_GPL(hid_set_field);
1266
1267 static struct hid_report *hid_get_report(struct hid_report_enum *report_enum,
1268 const u8 *data)
1269 {
1270 struct hid_report *report;
1271 unsigned int n = 0; /* Normally report number is 0 */
1272
1273 /* Device uses numbered reports, data[0] is report number */
1274 if (report_enum->numbered)
1275 n = *data;
1276
1277 report = report_enum->report_id_hash[n];
1278 if (report == NULL)
1279 dbg_hid("undefined report_id %u received\n", n);
1280
1281 return report;
1282 }
1283
1284 int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
1285 int interrupt)
1286 {
1287 struct hid_report_enum *report_enum = hid->report_enum + type;
1288 struct hid_report *report;
1289 struct hid_driver *hdrv;
1290 unsigned int a;
1291 int rsize, csize = size;
1292 u8 *cdata = data;
1293 int ret = 0;
1294
1295 report = hid_get_report(report_enum, data);
1296 if (!report)
1297 goto out;
1298
1299 if (report_enum->numbered) {
1300 cdata++;
1301 csize--;
1302 }
1303
1304 rsize = ((report->size - 1) >> 3) + 1;
1305
1306 if (rsize > HID_MAX_BUFFER_SIZE)
1307 rsize = HID_MAX_BUFFER_SIZE;
1308
1309 if (csize < rsize) {
1310 dbg_hid("report %d is too short, (%d < %d)\n", report->id,
1311 csize, rsize);
1312 memset(cdata + csize, 0, rsize - csize);
1313 }
1314
1315 if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event)
1316 hid->hiddev_report_event(hid, report);
1317 if (hid->claimed & HID_CLAIMED_HIDRAW) {
1318 ret = hidraw_report_event(hid, data, size);
1319 if (ret)
1320 goto out;
1321 }
1322
1323 if (hid->claimed != HID_CLAIMED_HIDRAW && report->maxfield) {
1324 for (a = 0; a < report->maxfield; a++)
1325 hid_input_field(hid, report->field[a], cdata, interrupt);
1326 hdrv = hid->driver;
1327 if (hdrv && hdrv->report)
1328 hdrv->report(hid, report);
1329 }
1330
1331 if (hid->claimed & HID_CLAIMED_INPUT)
1332 hidinput_report_event(hid, report);
1333 out:
1334 return ret;
1335 }
1336 EXPORT_SYMBOL_GPL(hid_report_raw_event);
1337
1338 /**
1339 * hid_input_report - report data from lower layer (usb, bt...)
1340 *
1341 * @hid: hid device
1342 * @type: HID report type (HID_*_REPORT)
1343 * @data: report contents
1344 * @size: size of data parameter
1345 * @interrupt: distinguish between interrupt and control transfers
1346 *
1347 * This is data entry for lower layers.
1348 */
1349 int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt)
1350 {
1351 struct hid_report_enum *report_enum;
1352 struct hid_driver *hdrv;
1353 struct hid_report *report;
1354 int ret = 0;
1355
1356 if (!hid)
1357 return -ENODEV;
1358
1359 if (down_trylock(&hid->driver_input_lock))
1360 return -EBUSY;
1361
1362 if (!hid->driver) {
1363 ret = -ENODEV;
1364 goto unlock;
1365 }
1366 report_enum = hid->report_enum + type;
1367 hdrv = hid->driver;
1368
1369 if (!size) {
1370 dbg_hid("empty report\n");
1371 ret = -1;
1372 goto unlock;
1373 }
1374
1375 /* Avoid unnecessary overhead if debugfs is disabled */
1376 if (!list_empty(&hid->debug_list))
1377 hid_dump_report(hid, type, data, size);
1378
1379 report = hid_get_report(report_enum, data);
1380
1381 if (!report) {
1382 ret = -1;
1383 goto unlock;
1384 }
1385
1386 if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) {
1387 ret = hdrv->raw_event(hid, report, data, size);
1388 if (ret != 0) {
1389 ret = ret < 0 ? ret : 0;
1390 goto unlock;
1391 }
1392 }
1393
1394 ret = hid_report_raw_event(hid, type, data, size, interrupt);
1395
1396 unlock:
1397 up(&hid->driver_input_lock);
1398 return ret;
1399 }
1400 EXPORT_SYMBOL_GPL(hid_input_report);
1401
1402 static bool hid_match_one_id(struct hid_device *hdev,
1403 const struct hid_device_id *id)
1404 {
1405 return (id->bus == HID_BUS_ANY || id->bus == hdev->bus) &&
1406 (id->group == HID_GROUP_ANY || id->group == hdev->group) &&
1407 (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) &&
1408 (id->product == HID_ANY_ID || id->product == hdev->product);
1409 }
1410
1411 const struct hid_device_id *hid_match_id(struct hid_device *hdev,
1412 const struct hid_device_id *id)
1413 {
1414 for (; id->bus; id++)
1415 if (hid_match_one_id(hdev, id))
1416 return id;
1417
1418 return NULL;
1419 }
1420
1421 static const struct hid_device_id hid_hiddev_list[] = {
1422 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) },
1423 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) },
1424 { }
1425 };
1426
1427 static bool hid_hiddev(struct hid_device *hdev)
1428 {
1429 return !!hid_match_id(hdev, hid_hiddev_list);
1430 }
1431
1432
1433 static ssize_t
1434 read_report_descriptor(struct file *filp, struct kobject *kobj,
1435 struct bin_attribute *attr,
1436 char *buf, loff_t off, size_t count)
1437 {
1438 struct device *dev = container_of(kobj, struct device, kobj);
1439 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1440
1441 if (off >= hdev->rsize)
1442 return 0;
1443
1444 if (off + count > hdev->rsize)
1445 count = hdev->rsize - off;
1446
1447 memcpy(buf, hdev->rdesc + off, count);
1448
1449 return count;
1450 }
1451
1452 static struct bin_attribute dev_bin_attr_report_desc = {
1453 .attr = { .name = "report_descriptor", .mode = 0444 },
1454 .read = read_report_descriptor,
1455 .size = HID_MAX_DESCRIPTOR_SIZE,
1456 };
1457
1458 int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
1459 {
1460 static const char *types[] = { "Device", "Pointer", "Mouse", "Device",
1461 "Joystick", "Gamepad", "Keyboard", "Keypad",
1462 "Multi-Axis Controller"
1463 };
1464 const char *type, *bus;
1465 char buf[64] = "";
1466 unsigned int i;
1467 int len;
1468 int ret;
1469
1470 if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE)
1471 connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV);
1472 if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE)
1473 connect_mask |= HID_CONNECT_HIDINPUT_FORCE;
1474 if (hdev->bus != BUS_USB)
1475 connect_mask &= ~HID_CONNECT_HIDDEV;
1476 if (hid_hiddev(hdev))
1477 connect_mask |= HID_CONNECT_HIDDEV_FORCE;
1478
1479 if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,
1480 connect_mask & HID_CONNECT_HIDINPUT_FORCE))
1481 hdev->claimed |= HID_CLAIMED_INPUT;
1482
1483 if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect &&
1484 !hdev->hiddev_connect(hdev,
1485 connect_mask & HID_CONNECT_HIDDEV_FORCE))
1486 hdev->claimed |= HID_CLAIMED_HIDDEV;
1487 if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev))
1488 hdev->claimed |= HID_CLAIMED_HIDRAW;
1489
1490 /* Drivers with the ->raw_event callback set are not required to connect
1491 * to any other listener. */
1492 if (!hdev->claimed && !hdev->driver->raw_event) {
1493 hid_err(hdev, "device has no listeners, quitting\n");
1494 return -ENODEV;
1495 }
1496
1497 if ((hdev->claimed & HID_CLAIMED_INPUT) &&
1498 (connect_mask & HID_CONNECT_FF) && hdev->ff_init)
1499 hdev->ff_init(hdev);
1500
1501 len = 0;
1502 if (hdev->claimed & HID_CLAIMED_INPUT)
1503 len += sprintf(buf + len, "input");
1504 if (hdev->claimed & HID_CLAIMED_HIDDEV)
1505 len += sprintf(buf + len, "%shiddev%d", len ? "," : "",
1506 hdev->minor);
1507 if (hdev->claimed & HID_CLAIMED_HIDRAW)
1508 len += sprintf(buf + len, "%shidraw%d", len ? "," : "",
1509 ((struct hidraw *)hdev->hidraw)->minor);
1510
1511 type = "Device";
1512 for (i = 0; i < hdev->maxcollection; i++) {
1513 struct hid_collection *col = &hdev->collection[i];
1514 if (col->type == HID_COLLECTION_APPLICATION &&
1515 (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
1516 (col->usage & 0xffff) < ARRAY_SIZE(types)) {
1517 type = types[col->usage & 0xffff];
1518 break;
1519 }
1520 }
1521
1522 switch (hdev->bus) {
1523 case BUS_USB:
1524 bus = "USB";
1525 break;
1526 case BUS_BLUETOOTH:
1527 bus = "BLUETOOTH";
1528 break;
1529 default:
1530 bus = "<UNKNOWN>";
1531 }
1532
1533 ret = device_create_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1534 if (ret)
1535 hid_warn(hdev,
1536 "can't create sysfs report descriptor attribute err: %d\n", ret);
1537
1538 hid_info(hdev, "%s: %s HID v%x.%02x %s [%s] on %s\n",
1539 buf, bus, hdev->version >> 8, hdev->version & 0xff,
1540 type, hdev->name, hdev->phys);
1541
1542 return 0;
1543 }
1544 EXPORT_SYMBOL_GPL(hid_connect);
1545
1546 void hid_disconnect(struct hid_device *hdev)
1547 {
1548 device_remove_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1549 if (hdev->claimed & HID_CLAIMED_INPUT)
1550 hidinput_disconnect(hdev);
1551 if (hdev->claimed & HID_CLAIMED_HIDDEV)
1552 hdev->hiddev_disconnect(hdev);
1553 if (hdev->claimed & HID_CLAIMED_HIDRAW)
1554 hidraw_disconnect(hdev);
1555 }
1556 EXPORT_SYMBOL_GPL(hid_disconnect);
1557
1558 /*
1559 * A list of devices for which there is a specialized driver on HID bus.
1560 *
1561 * Please note that for multitouch devices (driven by hid-multitouch driver),
1562 * there is a proper autodetection and autoloading in place (based on presence
1563 * of HID_DG_CONTACTID), so those devices don't need to be added to this list,
1564 * as we are doing the right thing in hid_scan_usage().
1565 *
1566 * Autodetection for (USB) HID sensor hubs exists too. If a collection of type
1567 * physical is found inside a usage page of type sensor, hid-sensor-hub will be
1568 * used as a driver. See hid_scan_report().
1569 */
1570 static const struct hid_device_id hid_have_special_driver[] = {
1571 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
1572 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
1573 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) },
1574 { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) },
1575 { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0xf705) },
1576 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
1577 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
1578 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) },
1579 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1580 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1581 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1582 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1583 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1584 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1585 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1586 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1587 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1588 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1589 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1590 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) },
1591 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) },
1592 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) },
1593 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) },
1594 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) },
1595 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) },
1596 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1597 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1598 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
1599 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL) },
1600 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL2) },
1601 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL3) },
1602 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
1603 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL5) },
1604 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) },
1605 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) },
1606 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) },
1607 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1608 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1609 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1610 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1611 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1612 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
1613 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1614 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1615 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
1616 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
1617 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
1618 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
1619 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
1620 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
1621 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
1622 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
1623 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
1624 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
1625 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
1626 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
1627 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
1628 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ANSI) },
1629 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ISO) },
1630 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_JIS) },
1631 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
1632 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
1633 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
1634 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
1635 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
1636 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
1637 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
1638 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
1639 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
1640 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) },
1641 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) },
1642 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) },
1643 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI) },
1644 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO) },
1645 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS) },
1646 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) },
1647 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) },
1648 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) },
1649 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI) },
1650 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO) },
1651 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1652 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1653 { HID_USB_DEVICE(USB_VENDOR_ID_AUREAL, USB_DEVICE_ID_AUREAL_W01RN) },
1654 { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
1655 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
1656 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
1657 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
1658 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
1659 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
1660 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS) },
1661 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) },
1662 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_AK1D) },
1663 { HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) },
1664 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) },
1665 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) },
1666 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) },
1667 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_4) },
1668 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
1669 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
1670 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011) },
1671 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
1672 { HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) },
1673 { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
1674 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) },
1675 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) },
1676 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) },
1677 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) },
1678 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
1679 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
1680 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
1681 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) },
1682 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) },
1683 { HID_USB_DEVICE(USB_VENDOR_ID_JESS2, USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD) },
1684 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ION, USB_DEVICE_ID_ICADE) },
1685 { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
1686 { HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) },
1687 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
1688 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_I405X) },
1689 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X) },
1690 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X_2) },
1691 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X) },
1692 { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
1693 { HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) },
1694 #if IS_ENABLED(CONFIG_HID_LENOVO_TPKBD)
1695 { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) },
1696 #endif
1697 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
1698 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
1699 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) },
1700 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) },
1701 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_PS3) },
1702 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) },
1703 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) },
1704 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) },
1705 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) },
1706 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) },
1707 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) },
1708 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) },
1709 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) },
1710 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
1711 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },
1712 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
1713 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) },
1714 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
1715 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) },
1716 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
1717 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
1718 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_VIBRATION_WHEEL) },
1719 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFP_WHEEL) },
1720 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFGT_WHEEL) },
1721 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
1722 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G27_WHEEL) },
1723 #if IS_ENABLED(CONFIG_HID_LOGITECH_DJ)
1724 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER) },
1725 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2) },
1726 #endif
1727 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) },
1728 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) },
1729 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) },
1730 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) },
1731 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
1732 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
1733 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500) },
1734 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) },
1735 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) },
1736 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K_JP) },
1737 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) },
1738 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) },
1739 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K) },
1740 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
1741 { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
1742 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
1743 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) },
1744 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) },
1745 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) },
1746 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) },
1747 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) },
1748 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) },
1749 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) },
1750 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) },
1751 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) },
1752 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) },
1753 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) },
1754 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) },
1755 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) },
1756 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) },
1757 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) },
1758 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) },
1759 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) },
1760 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) },
1761 { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) },
1762 { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
1763 { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
1764 { HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_KEYBOARD) },
1765 #if IS_ENABLED(CONFIG_HID_ROCCAT)
1766 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) },
1767 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
1768 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKUFX) },
1769 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
1770 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
1771 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE) },
1772 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE_OPTICAL) },
1773 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEXTD) },
1774 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
1775 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_LUA) },
1776 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
1777 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) },
1778 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_SAVU) },
1779 #endif
1780 { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000) },
1781 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
1782 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
1783 { HID_USB_DEVICE(USB_VENDOR_ID_SIS2_TOUCH, USB_DEVICE_ID_SIS9200_TOUCH) },
1784 { HID_USB_DEVICE(USB_VENDOR_ID_SIS2_TOUCH, USB_DEVICE_ID_SIS817_TOUCH) },
1785 { HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
1786 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_BDREMOTE) },
1787 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1788 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER) },
1789 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1790 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
1791 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGP_MOUSE) },
1792 { HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, USB_DEVICE_ID_STEELSERIES_SRWS1) },
1793 { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
1794 { HID_USB_DEVICE(USB_VENDOR_ID_THINGM, USB_DEVICE_ID_BLINK1) },
1795 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
1796 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
1797 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) },
1798 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) },
1799 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
1800 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) },
1801 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
1802 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) },
1803 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) },
1804 { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) },
1805 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
1806 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
1807 { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
1808 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
1809 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
1810 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
1811 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
1812 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP1062) },
1813 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_WIRELESS_TABLET_TWHL850) },
1814 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_TWHA60) },
1815 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
1816 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SUPER_JOY_BOX_3) },
1817 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD) },
1818 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO) },
1819 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO) },
1820 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO) },
1821 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
1822 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) },
1823 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
1824 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
1825 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_Q_PAD) },
1826 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_PID_0038) },
1827 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
1828 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
1829 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET) },
1830 { HID_USB_DEVICE(USB_VENDOR_ID_X_TENSIONS, USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE) },
1831 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
1832 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
1833 { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
1834
1835 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
1836 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) },
1837 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE2) },
1838 { }
1839 };
1840
1841 struct hid_dynid {
1842 struct list_head list;
1843 struct hid_device_id id;
1844 };
1845
1846 /**
1847 * store_new_id - add a new HID device ID to this driver and re-probe devices
1848 * @driver: target device driver
1849 * @buf: buffer for scanning device ID data
1850 * @count: input size
1851 *
1852 * Adds a new dynamic hid device ID to this driver,
1853 * and causes the driver to probe for all devices again.
1854 */
1855 static ssize_t store_new_id(struct device_driver *drv, const char *buf,
1856 size_t count)
1857 {
1858 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1859 struct hid_dynid *dynid;
1860 __u32 bus, vendor, product;
1861 unsigned long driver_data = 0;
1862 int ret;
1863
1864 ret = sscanf(buf, "%x %x %x %lx",
1865 &bus, &vendor, &product, &driver_data);
1866 if (ret < 3)
1867 return -EINVAL;
1868
1869 dynid = kzalloc(sizeof(*dynid), GFP_KERNEL);
1870 if (!dynid)
1871 return -ENOMEM;
1872
1873 dynid->id.bus = bus;
1874 dynid->id.group = HID_GROUP_ANY;
1875 dynid->id.vendor = vendor;
1876 dynid->id.product = product;
1877 dynid->id.driver_data = driver_data;
1878
1879 spin_lock(&hdrv->dyn_lock);
1880 list_add_tail(&dynid->list, &hdrv->dyn_list);
1881 spin_unlock(&hdrv->dyn_lock);
1882
1883 ret = driver_attach(&hdrv->driver);
1884
1885 return ret ? : count;
1886 }
1887 static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
1888
1889 static void hid_free_dynids(struct hid_driver *hdrv)
1890 {
1891 struct hid_dynid *dynid, *n;
1892
1893 spin_lock(&hdrv->dyn_lock);
1894 list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) {
1895 list_del(&dynid->list);
1896 kfree(dynid);
1897 }
1898 spin_unlock(&hdrv->dyn_lock);
1899 }
1900
1901 static const struct hid_device_id *hid_match_device(struct hid_device *hdev,
1902 struct hid_driver *hdrv)
1903 {
1904 struct hid_dynid *dynid;
1905
1906 spin_lock(&hdrv->dyn_lock);
1907 list_for_each_entry(dynid, &hdrv->dyn_list, list) {
1908 if (hid_match_one_id(hdev, &dynid->id)) {
1909 spin_unlock(&hdrv->dyn_lock);
1910 return &dynid->id;
1911 }
1912 }
1913 spin_unlock(&hdrv->dyn_lock);
1914
1915 return hid_match_id(hdev, hdrv->id_table);
1916 }
1917
1918 static int hid_bus_match(struct device *dev, struct device_driver *drv)
1919 {
1920 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1921 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1922
1923 return hid_match_device(hdev, hdrv) != NULL;
1924 }
1925
1926 static int hid_device_probe(struct device *dev)
1927 {
1928 struct hid_driver *hdrv = container_of(dev->driver,
1929 struct hid_driver, driver);
1930 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1931 const struct hid_device_id *id;
1932 int ret = 0;
1933
1934 if (down_interruptible(&hdev->driver_lock))
1935 return -EINTR;
1936 if (down_interruptible(&hdev->driver_input_lock)) {
1937 ret = -EINTR;
1938 goto unlock_driver_lock;
1939 }
1940 hdev->io_started = false;
1941
1942 if (!hdev->driver) {
1943 id = hid_match_device(hdev, hdrv);
1944 if (id == NULL) {
1945 ret = -ENODEV;
1946 goto unlock;
1947 }
1948
1949 hdev->driver = hdrv;
1950 if (hdrv->probe) {
1951 ret = hdrv->probe(hdev, id);
1952 } else { /* default probe */
1953 ret = hid_open_report(hdev);
1954 if (!ret)
1955 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
1956 }
1957 if (ret) {
1958 hid_close_report(hdev);
1959 hdev->driver = NULL;
1960 }
1961 }
1962 unlock:
1963 if (!hdev->io_started)
1964 up(&hdev->driver_input_lock);
1965 unlock_driver_lock:
1966 up(&hdev->driver_lock);
1967 return ret;
1968 }
1969
1970 static int hid_device_remove(struct device *dev)
1971 {
1972 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1973 struct hid_driver *hdrv;
1974 int ret = 0;
1975
1976 if (down_interruptible(&hdev->driver_lock))
1977 return -EINTR;
1978 if (down_interruptible(&hdev->driver_input_lock)) {
1979 ret = -EINTR;
1980 goto unlock_driver_lock;
1981 }
1982 hdev->io_started = false;
1983
1984 hdrv = hdev->driver;
1985 if (hdrv) {
1986 if (hdrv->remove)
1987 hdrv->remove(hdev);
1988 else /* default remove */
1989 hid_hw_stop(hdev);
1990 hid_close_report(hdev);
1991 hdev->driver = NULL;
1992 }
1993
1994 if (!hdev->io_started)
1995 up(&hdev->driver_input_lock);
1996 unlock_driver_lock:
1997 up(&hdev->driver_lock);
1998 return ret;
1999 }
2000
2001 static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
2002 char *buf)
2003 {
2004 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
2005 int len;
2006
2007 len = snprintf(buf, PAGE_SIZE, "hid:b%04Xg%04Xv%08Xp%08X\n",
2008 hdev->bus, hdev->group, hdev->vendor, hdev->product);
2009
2010 return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
2011 }
2012
2013 static struct device_attribute hid_dev_attrs[] = {
2014 __ATTR_RO(modalias),
2015 __ATTR_NULL,
2016 };
2017
2018 static int hid_uevent(struct device *dev, struct kobj_uevent_env *env)
2019 {
2020 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
2021
2022 if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X",
2023 hdev->bus, hdev->vendor, hdev->product))
2024 return -ENOMEM;
2025
2026 if (add_uevent_var(env, "HID_NAME=%s", hdev->name))
2027 return -ENOMEM;
2028
2029 if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys))
2030 return -ENOMEM;
2031
2032 if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq))
2033 return -ENOMEM;
2034
2035 if (add_uevent_var(env, "MODALIAS=hid:b%04Xg%04Xv%08Xp%08X",
2036 hdev->bus, hdev->group, hdev->vendor, hdev->product))
2037 return -ENOMEM;
2038
2039 return 0;
2040 }
2041
2042 static struct bus_type hid_bus_type = {
2043 .name = "hid",
2044 .dev_attrs = hid_dev_attrs,
2045 .match = hid_bus_match,
2046 .probe = hid_device_probe,
2047 .remove = hid_device_remove,
2048 .uevent = hid_uevent,
2049 };
2050
2051 /* a list of devices that shouldn't be handled by HID core at all */
2052 static const struct hid_device_id hid_ignore_list[] = {
2053 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) },
2054 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) },
2055 { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) },
2056 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) },
2057 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) },
2058 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) },
2059 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) },
2060 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) },
2061 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) },
2062 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) },
2063 { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) },
2064 { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) },
2065 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)},
2066 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)},
2067 { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) },
2068 { HID_USB_DEVICE(USB_VENDOR_ID_AXENTIA, USB_DEVICE_ID_AXENTIA_FM_RADIO) },
2069 { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) },
2070 { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) },
2071 { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) },
2072 { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) },
2073 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) },
2074 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) },
2075 { HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) },
2076 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) },
2077 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
2078 { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x0004) },
2079 { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x000a) },
2080 { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
2081 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
2082 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
2083 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) },
2084 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) },
2085 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) },
2086 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) },
2087 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) },
2088 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) },
2089 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) },
2090 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) },
2091 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) },
2092 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) },
2093 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) },
2094 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) },
2095 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) },
2096 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) },
2097 { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) },
2098 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) },
2099 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) },
2100 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_RADIOSHARK) },
2101 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) },
2102 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) },
2103 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) },
2104 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) },
2105 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) },
2106 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) },
2107 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) },
2108 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) },
2109 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) },
2110 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) },
2111 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) },
2112 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) },
2113 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) },
2114 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) },
2115 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) },
2116 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) },
2117 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) },
2118 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) },
2119 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) },
2120 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) },
2121 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) },
2122 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) },
2123 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) },
2124 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) },
2125 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) },
2126 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) },
2127 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) },
2128 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) },
2129 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) },
2130 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) },
2131 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) },
2132 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) },
2133 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) },
2134 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) },
2135 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) },
2136 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) },
2137 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) },
2138 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) },
2139 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) },
2140 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) },
2141 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) },
2142 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) },
2143 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) },
2144 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) },
2145 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) },
2146 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) },
2147 { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) },
2148 { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) },
2149 { HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) },
2150 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) },
2151 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) },
2152 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) },
2153 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY2) },
2154 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) },
2155 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY2) },
2156 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) },
2157 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY2) },
2158 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYVOLTAGE) },
2159 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYCURRENT) },
2160 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTIME) },
2161 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTEMPERATURE) },
2162 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYPH) },
2163 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) },
2164 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) },
2165 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) },
2166 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIC) },
2167 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIB) },
2168 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY) },
2169 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) },
2170 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) },
2171 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOTOR) },
2172 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) },
2173 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) },
2174 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) },
2175 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) },
2176 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) },
2177 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER) },
2178 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER2) },
2179 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_ABSESP) },
2180 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_AUTODATABUS) },
2181 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MCT) },
2182 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HYBRID) },
2183 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HEATCONTROL) },
2184 { HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_BEATPAD) },
2185 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) },
2186 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) },
2187 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) },
2188 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) },
2189 { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) },
2190 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) },
2191 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) },
2192 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) },
2193 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) },
2194 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) },
2195 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) },
2196 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) },
2197 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) },
2198 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) },
2199 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) },
2200 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) },
2201 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) },
2202 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) },
2203 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
2204 { HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
2205 { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
2206 #if defined(CONFIG_MOUSE_SYNAPTICS_USB) || defined(CONFIG_MOUSE_SYNAPTICS_USB_MODULE)
2207 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_TP) },
2208 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_INT_TP) },
2209 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_CPAD) },
2210 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_STICK) },
2211 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WP) },
2212 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_COMP_TP) },
2213 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WTP) },
2214 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_DPAD) },
2215 #endif
2216 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) },
2217 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
2218 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },
2219 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) },
2220 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) },
2221 { HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) },
2222 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) },
2223 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) },
2224 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) },
2225 { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) },
2226 { }
2227 };
2228
2229 /**
2230 * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer
2231 *
2232 * There are composite devices for which we want to ignore only a certain
2233 * interface. This is a list of devices for which only the mouse interface will
2234 * be ignored. This allows a dedicated driver to take care of the interface.
2235 */
2236 static const struct hid_device_id hid_mouse_ignore_list[] = {
2237 /* appletouch driver */
2238 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
2239 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
2240 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
2241 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
2242 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
2243 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
2244 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
2245 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
2246 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
2247 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
2248 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
2249 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
2250 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
2251 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
2252 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
2253 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
2254 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
2255 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
2256 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
2257 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
2258 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
2259 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
2260 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
2261 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
2262 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
2263 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
2264 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
2265 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
2266 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
2267 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
2268 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
2269 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
2270 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
2271 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
2272 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
2273 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
2274 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
2275 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
2276 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
2277 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
2278 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
2279 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
2280 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
2281 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
2282 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) },
2283 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) },
2284 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) },
2285 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI) },
2286 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO) },
2287 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS) },
2288 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
2289 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
2290 { }
2291 };
2292
2293 bool hid_ignore(struct hid_device *hdev)
2294 {
2295 if (hdev->quirks & HID_QUIRK_NO_IGNORE)
2296 return false;
2297 if (hdev->quirks & HID_QUIRK_IGNORE)
2298 return true;
2299
2300 switch (hdev->vendor) {
2301 case USB_VENDOR_ID_CODEMERCS:
2302 /* ignore all Code Mercenaries IOWarrior devices */
2303 if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST &&
2304 hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST)
2305 return true;
2306 break;
2307 case USB_VENDOR_ID_LOGITECH:
2308 if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST &&
2309 hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST)
2310 return true;
2311 /*
2312 * The Keene FM transmitter USB device has the same USB ID as
2313 * the Logitech AudioHub Speaker, but it should ignore the hid.
2314 * Check if the name is that of the Keene device.
2315 * For reference: the name of the AudioHub is
2316 * "HOLTEK AudioHub Speaker".
2317 */
2318 if (hdev->product == USB_DEVICE_ID_LOGITECH_AUDIOHUB &&
2319 !strcmp(hdev->name, "HOLTEK B-LINK USB Audio "))
2320 return true;
2321 break;
2322 case USB_VENDOR_ID_SOUNDGRAPH:
2323 if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST &&
2324 hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST)
2325 return true;
2326 break;
2327 case USB_VENDOR_ID_HANWANG:
2328 if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST &&
2329 hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST)
2330 return true;
2331 break;
2332 case USB_VENDOR_ID_JESS:
2333 if (hdev->product == USB_DEVICE_ID_JESS_YUREX &&
2334 hdev->type == HID_TYPE_USBNONE)
2335 return true;
2336 break;
2337 case USB_VENDOR_ID_VELLEMAN:
2338 /* These are not HID devices. They are handled by comedi. */
2339 if ((hdev->product >= USB_DEVICE_ID_VELLEMAN_K8055_FIRST &&
2340 hdev->product <= USB_DEVICE_ID_VELLEMAN_K8055_LAST) ||
2341 (hdev->product >= USB_DEVICE_ID_VELLEMAN_K8061_FIRST &&
2342 hdev->product <= USB_DEVICE_ID_VELLEMAN_K8061_LAST))
2343 return true;
2344 break;
2345 case USB_VENDOR_ID_ATMEL_V_USB:
2346 /* Masterkit MA901 usb radio based on Atmel tiny85 chip and
2347 * it has the same USB ID as many Atmel V-USB devices. This
2348 * usb radio is handled by radio-ma901.c driver so we want
2349 * ignore the hid. Check the name, bus, product and ignore
2350 * if we have MA901 usb radio.
2351 */
2352 if (hdev->product == USB_DEVICE_ID_ATMEL_V_USB &&
2353 hdev->bus == BUS_USB &&
2354 strncmp(hdev->name, "www.masterkit.ru MA901", 22) == 0)
2355 return true;
2356 break;
2357 }
2358
2359 if (hdev->type == HID_TYPE_USBMOUSE &&
2360 hid_match_id(hdev, hid_mouse_ignore_list))
2361 return true;
2362
2363 return !!hid_match_id(hdev, hid_ignore_list);
2364 }
2365 EXPORT_SYMBOL_GPL(hid_ignore);
2366
2367 int hid_add_device(struct hid_device *hdev)
2368 {
2369 static atomic_t id = ATOMIC_INIT(0);
2370 int ret;
2371
2372 if (WARN_ON(hdev->status & HID_STAT_ADDED))
2373 return -EBUSY;
2374
2375 /* we need to kill them here, otherwise they will stay allocated to
2376 * wait for coming driver */
2377 if (hid_ignore(hdev))
2378 return -ENODEV;
2379
2380 /*
2381 * Read the device report descriptor once and use as template
2382 * for the driver-specific modifications.
2383 */
2384 ret = hdev->ll_driver->parse(hdev);
2385 if (ret)
2386 return ret;
2387 if (!hdev->dev_rdesc)
2388 return -ENODEV;
2389
2390 /*
2391 * Scan generic devices for group information
2392 */
2393 if (hid_ignore_special_drivers ||
2394 !hid_match_id(hdev, hid_have_special_driver)) {
2395 ret = hid_scan_report(hdev);
2396 if (ret)
2397 hid_warn(hdev, "bad device descriptor (%d)\n", ret);
2398 }
2399
2400 /* XXX hack, any other cleaner solution after the driver core
2401 * is converted to allow more than 20 bytes as the device name? */
2402 dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
2403 hdev->vendor, hdev->product, atomic_inc_return(&id));
2404
2405 hid_debug_register(hdev, dev_name(&hdev->dev));
2406 ret = device_add(&hdev->dev);
2407 if (!ret)
2408 hdev->status |= HID_STAT_ADDED;
2409 else
2410 hid_debug_unregister(hdev);
2411
2412 return ret;
2413 }
2414 EXPORT_SYMBOL_GPL(hid_add_device);
2415
2416 /**
2417 * hid_allocate_device - allocate new hid device descriptor
2418 *
2419 * Allocate and initialize hid device, so that hid_destroy_device might be
2420 * used to free it.
2421 *
2422 * New hid_device pointer is returned on success, otherwise ERR_PTR encoded
2423 * error value.
2424 */
2425 struct hid_device *hid_allocate_device(void)
2426 {
2427 struct hid_device *hdev;
2428 int ret = -ENOMEM;
2429
2430 hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
2431 if (hdev == NULL)
2432 return ERR_PTR(ret);
2433
2434 device_initialize(&hdev->dev);
2435 hdev->dev.release = hid_device_release;
2436 hdev->dev.bus = &hid_bus_type;
2437
2438 hid_close_report(hdev);
2439
2440 init_waitqueue_head(&hdev->debug_wait);
2441 INIT_LIST_HEAD(&hdev->debug_list);
2442 spin_lock_init(&hdev->debug_list_lock);
2443 sema_init(&hdev->driver_lock, 1);
2444 sema_init(&hdev->driver_input_lock, 1);
2445
2446 return hdev;
2447 }
2448 EXPORT_SYMBOL_GPL(hid_allocate_device);
2449
2450 static void hid_remove_device(struct hid_device *hdev)
2451 {
2452 if (hdev->status & HID_STAT_ADDED) {
2453 device_del(&hdev->dev);
2454 hid_debug_unregister(hdev);
2455 hdev->status &= ~HID_STAT_ADDED;
2456 }
2457 kfree(hdev->dev_rdesc);
2458 hdev->dev_rdesc = NULL;
2459 hdev->dev_rsize = 0;
2460 }
2461
2462 /**
2463 * hid_destroy_device - free previously allocated device
2464 *
2465 * @hdev: hid device
2466 *
2467 * If you allocate hid_device through hid_allocate_device, you should ever
2468 * free by this function.
2469 */
2470 void hid_destroy_device(struct hid_device *hdev)
2471 {
2472 hid_remove_device(hdev);
2473 put_device(&hdev->dev);
2474 }
2475 EXPORT_SYMBOL_GPL(hid_destroy_device);
2476
2477 int __hid_register_driver(struct hid_driver *hdrv, struct module *owner,
2478 const char *mod_name)
2479 {
2480 int ret;
2481
2482 hdrv->driver.name = hdrv->name;
2483 hdrv->driver.bus = &hid_bus_type;
2484 hdrv->driver.owner = owner;
2485 hdrv->driver.mod_name = mod_name;
2486
2487 INIT_LIST_HEAD(&hdrv->dyn_list);
2488 spin_lock_init(&hdrv->dyn_lock);
2489
2490 ret = driver_register(&hdrv->driver);
2491 if (ret)
2492 return ret;
2493
2494 ret = driver_create_file(&hdrv->driver, &driver_attr_new_id);
2495 if (ret)
2496 driver_unregister(&hdrv->driver);
2497
2498 return ret;
2499 }
2500 EXPORT_SYMBOL_GPL(__hid_register_driver);
2501
2502 void hid_unregister_driver(struct hid_driver *hdrv)
2503 {
2504 driver_remove_file(&hdrv->driver, &driver_attr_new_id);
2505 driver_unregister(&hdrv->driver);
2506 hid_free_dynids(hdrv);
2507 }
2508 EXPORT_SYMBOL_GPL(hid_unregister_driver);
2509
2510 int hid_check_keys_pressed(struct hid_device *hid)
2511 {
2512 struct hid_input *hidinput;
2513 int i;
2514
2515 if (!(hid->claimed & HID_CLAIMED_INPUT))
2516 return 0;
2517
2518 list_for_each_entry(hidinput, &hid->inputs, list) {
2519 for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++)
2520 if (hidinput->input->key[i])
2521 return 1;
2522 }
2523
2524 return 0;
2525 }
2526
2527 EXPORT_SYMBOL_GPL(hid_check_keys_pressed);
2528
2529 static int __init hid_init(void)
2530 {
2531 int ret;
2532
2533 if (hid_debug)
2534 pr_warn("hid_debug is now used solely for parser and driver debugging.\n"
2535 "debugfs is now used for inspecting the device (report descriptor, reports)\n");
2536
2537 ret = bus_register(&hid_bus_type);
2538 if (ret) {
2539 pr_err("can't register hid bus\n");
2540 goto err;
2541 }
2542
2543 ret = hidraw_init();
2544 if (ret)
2545 goto err_bus;
2546
2547 hid_debug_init();
2548
2549 return 0;
2550 err_bus:
2551 bus_unregister(&hid_bus_type);
2552 err:
2553 return ret;
2554 }
2555
2556 static void __exit hid_exit(void)
2557 {
2558 hid_debug_exit();
2559 hidraw_exit();
2560 bus_unregister(&hid_bus_type);
2561 }
2562
2563 module_init(hid_init);
2564 module_exit(hid_exit);
2565
2566 MODULE_AUTHOR("Andreas Gal");
2567 MODULE_AUTHOR("Vojtech Pavlik");
2568 MODULE_AUTHOR("Jiri Kosina");
2569 MODULE_LICENSE(DRIVER_LICENSE);
2570
kernel source for telekom puls (alcatel/mediatek)