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x86/xen: resume timer irqs early
[linux/fpc-iii.git] / drivers / hid / hid-core.c
blob245f8922f8132db98c5a90ec6b895fef57e3fd90
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 __s32 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 /* Many devices provide unit exponent as a two's complement
374 * nibble due to the common misunderstanding of HID
375 * specification 1.11, 6.2.2.7 Global Items. Attempt to handle
376 * both this and the standard encoding. */
377 raw_value = item_sdata(item);
378 if (!(raw_value & 0xfffffff0))
379 parser->global.unit_exponent = hid_snto32(raw_value, 4);
380 else
381 parser->global.unit_exponent = raw_value;
382 return 0;
383
384 case HID_GLOBAL_ITEM_TAG_UNIT:
385 parser->global.unit = item_udata(item);
386 return 0;
387
388 case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
389 parser->global.report_size = item_udata(item);
390 if (parser->global.report_size > 128) {
391 hid_err(parser->device, "invalid report_size %d\n",
392 parser->global.report_size);
393 return -1;
394 }
395 return 0;
396
397 case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
398 parser->global.report_count = item_udata(item);
399 if (parser->global.report_count > HID_MAX_USAGES) {
400 hid_err(parser->device, "invalid report_count %d\n",
401 parser->global.report_count);
402 return -1;
403 }
404 return 0;
405
406 case HID_GLOBAL_ITEM_TAG_REPORT_ID:
407 parser->global.report_id = item_udata(item);
408 if (parser->global.report_id == 0 ||
409 parser->global.report_id >= HID_MAX_IDS) {
410 hid_err(parser->device, "report_id %u is invalid\n",
411 parser->global.report_id);
412 return -1;
413 }
414 return 0;
415
416 default:
417 hid_err(parser->device, "unknown global tag 0x%x\n", item->tag);
418 return -1;
419 }
420 }
421
422 /*
423 * Process a local item.
424 */
425
426 static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
427 {
428 __u32 data;
429 unsigned n;
430
431 data = item_udata(item);
432
433 switch (item->tag) {
434 case HID_LOCAL_ITEM_TAG_DELIMITER:
435
436 if (data) {
437 /*
438 * We treat items before the first delimiter
439 * as global to all usage sets (branch 0).
440 * In the moment we process only these global
441 * items and the first delimiter set.
442 */
443 if (parser->local.delimiter_depth != 0) {
444 hid_err(parser->device, "nested delimiters\n");
445 return -1;
446 }
447 parser->local.delimiter_depth++;
448 parser->local.delimiter_branch++;
449 } else {
450 if (parser->local.delimiter_depth < 1) {
451 hid_err(parser->device, "bogus close delimiter\n");
452 return -1;
453 }
454 parser->local.delimiter_depth--;
455 }
456 return 0;
457
458 case HID_LOCAL_ITEM_TAG_USAGE:
459
460 if (parser->local.delimiter_branch > 1) {
461 dbg_hid("alternative usage ignored\n");
462 return 0;
463 }
464
465 if (item->size <= 2)
466 data = (parser->global.usage_page << 16) + data;
467
468 return hid_add_usage(parser, data);
469
470 case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
471
472 if (parser->local.delimiter_branch > 1) {
473 dbg_hid("alternative usage ignored\n");
474 return 0;
475 }
476
477 if (item->size <= 2)
478 data = (parser->global.usage_page << 16) + data;
479
480 parser->local.usage_minimum = data;
481 return 0;
482
483 case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
484
485 if (parser->local.delimiter_branch > 1) {
486 dbg_hid("alternative usage ignored\n");
487 return 0;
488 }
489
490 if (item->size <= 2)
491 data = (parser->global.usage_page << 16) + data;
492
493 for (n = parser->local.usage_minimum; n <= data; n++)
494 if (hid_add_usage(parser, n)) {
495 dbg_hid("hid_add_usage failed\n");
496 return -1;
497 }
498 return 0;
499
500 default:
501
502 dbg_hid("unknown local item tag 0x%x\n", item->tag);
503 return 0;
504 }
505 return 0;
506 }
507
508 /*
509 * Process a main item.
510 */
511
512 static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
513 {
514 __u32 data;
515 int ret;
516
517 data = item_udata(item);
518
519 switch (item->tag) {
520 case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
521 ret = open_collection(parser, data & 0xff);
522 break;
523 case HID_MAIN_ITEM_TAG_END_COLLECTION:
524 ret = close_collection(parser);
525 break;
526 case HID_MAIN_ITEM_TAG_INPUT:
527 ret = hid_add_field(parser, HID_INPUT_REPORT, data);
528 break;
529 case HID_MAIN_ITEM_TAG_OUTPUT:
530 ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
531 break;
532 case HID_MAIN_ITEM_TAG_FEATURE:
533 ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
534 break;
535 default:
536 hid_err(parser->device, "unknown main item tag 0x%x\n", item->tag);
537 ret = 0;
538 }
539
540 memset(&parser->local, 0, sizeof(parser->local)); /* Reset the local parser environment */
541
542 return ret;
543 }
544
545 /*
546 * Process a reserved item.
547 */
548
549 static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
550 {
551 dbg_hid("reserved item type, tag 0x%x\n", item->tag);
552 return 0;
553 }
554
555 /*
556 * Free a report and all registered fields. The field->usage and
557 * field->value table's are allocated behind the field, so we need
558 * only to free(field) itself.
559 */
560
561 static void hid_free_report(struct hid_report *report)
562 {
563 unsigned n;
564
565 for (n = 0; n < report->maxfield; n++)
566 kfree(report->field[n]);
567 kfree(report);
568 }
569
570 /*
571 * Close report. This function returns the device
572 * state to the point prior to hid_open_report().
573 */
574 static void hid_close_report(struct hid_device *device)
575 {
576 unsigned i, j;
577
578 for (i = 0; i < HID_REPORT_TYPES; i++) {
579 struct hid_report_enum *report_enum = device->report_enum + i;
580
581 for (j = 0; j < HID_MAX_IDS; j++) {
582 struct hid_report *report = report_enum->report_id_hash[j];
583 if (report)
584 hid_free_report(report);
585 }
586 memset(report_enum, 0, sizeof(*report_enum));
587 INIT_LIST_HEAD(&report_enum->report_list);
588 }
589
590 kfree(device->rdesc);
591 device->rdesc = NULL;
592 device->rsize = 0;
593
594 kfree(device->collection);
595 device->collection = NULL;
596 device->collection_size = 0;
597 device->maxcollection = 0;
598 device->maxapplication = 0;
599
600 device->status &= ~HID_STAT_PARSED;
601 }
602
603 /*
604 * Free a device structure, all reports, and all fields.
605 */
606
607 static void hid_device_release(struct device *dev)
608 {
609 struct hid_device *hid = container_of(dev, struct hid_device, dev);
610
611 hid_close_report(hid);
612 kfree(hid->dev_rdesc);
613 kfree(hid);
614 }
615
616 /*
617 * Fetch a report description item from the data stream. We support long
618 * items, though they are not used yet.
619 */
620
621 static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
622 {
623 u8 b;
624
625 if ((end - start) <= 0)
626 return NULL;
627
628 b = *start++;
629
630 item->type = (b >> 2) & 3;
631 item->tag = (b >> 4) & 15;
632
633 if (item->tag == HID_ITEM_TAG_LONG) {
634
635 item->format = HID_ITEM_FORMAT_LONG;
636
637 if ((end - start) < 2)
638 return NULL;
639
640 item->size = *start++;
641 item->tag = *start++;
642
643 if ((end - start) < item->size)
644 return NULL;
645
646 item->data.longdata = start;
647 start += item->size;
648 return start;
649 }
650
651 item->format = HID_ITEM_FORMAT_SHORT;
652 item->size = b & 3;
653
654 switch (item->size) {
655 case 0:
656 return start;
657
658 case 1:
659 if ((end - start) < 1)
660 return NULL;
661 item->data.u8 = *start++;
662 return start;
663
664 case 2:
665 if ((end - start) < 2)
666 return NULL;
667 item->data.u16 = get_unaligned_le16(start);
668 start = (__u8 *)((__le16 *)start + 1);
669 return start;
670
671 case 3:
672 item->size++;
673 if ((end - start) < 4)
674 return NULL;
675 item->data.u32 = get_unaligned_le32(start);
676 start = (__u8 *)((__le32 *)start + 1);
677 return start;
678 }
679
680 return NULL;
681 }
682
683 static void hid_scan_input_usage(struct hid_parser *parser, u32 usage)
684 {
685 struct hid_device *hid = parser->device;
686
687 if (usage == HID_DG_CONTACTID)
688 hid->group = HID_GROUP_MULTITOUCH;
689 }
690
691 static void hid_scan_feature_usage(struct hid_parser *parser, u32 usage)
692 {
693 if (usage == 0xff0000c5 && parser->global.report_count == 256 &&
694 parser->global.report_size == 8)
695 parser->scan_flags |= HID_SCAN_FLAG_MT_WIN_8;
696 }
697
698 static void hid_scan_collection(struct hid_parser *parser, unsigned type)
699 {
700 struct hid_device *hid = parser->device;
701
702 if (((parser->global.usage_page << 16) == HID_UP_SENSOR) &&
703 type == HID_COLLECTION_PHYSICAL)
704 hid->group = HID_GROUP_SENSOR_HUB;
705 }
706
707 static int hid_scan_main(struct hid_parser *parser, struct hid_item *item)
708 {
709 __u32 data;
710 int i;
711
712 data = item_udata(item);
713
714 switch (item->tag) {
715 case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
716 hid_scan_collection(parser, data & 0xff);
717 break;
718 case HID_MAIN_ITEM_TAG_END_COLLECTION:
719 break;
720 case HID_MAIN_ITEM_TAG_INPUT:
721 /* ignore constant inputs, they will be ignored by hid-input */
722 if (data & HID_MAIN_ITEM_CONSTANT)
723 break;
724 for (i = 0; i < parser->local.usage_index; i++)
725 hid_scan_input_usage(parser, parser->local.usage[i]);
726 break;
727 case HID_MAIN_ITEM_TAG_OUTPUT:
728 break;
729 case HID_MAIN_ITEM_TAG_FEATURE:
730 for (i = 0; i < parser->local.usage_index; i++)
731 hid_scan_feature_usage(parser, parser->local.usage[i]);
732 break;
733 }
734
735 /* Reset the local parser environment */
736 memset(&parser->local, 0, sizeof(parser->local));
737
738 return 0;
739 }
740
741 /*
742 * Scan a report descriptor before the device is added to the bus.
743 * Sets device groups and other properties that determine what driver
744 * to load.
745 */
746 static int hid_scan_report(struct hid_device *hid)
747 {
748 struct hid_parser *parser;
749 struct hid_item item;
750 __u8 *start = hid->dev_rdesc;
751 __u8 *end = start + hid->dev_rsize;
752 static int (*dispatch_type[])(struct hid_parser *parser,
753 struct hid_item *item) = {
754 hid_scan_main,
755 hid_parser_global,
756 hid_parser_local,
757 hid_parser_reserved
758 };
759
760 parser = vzalloc(sizeof(struct hid_parser));
761 if (!parser)
762 return -ENOMEM;
763
764 parser->device = hid;
765 hid->group = HID_GROUP_GENERIC;
766
767 /*
768 * The parsing is simpler than the one in hid_open_report() as we should
769 * be robust against hid errors. Those errors will be raised by
770 * hid_open_report() anyway.
771 */
772 while ((start = fetch_item(start, end, &item)) != NULL)
773 dispatch_type[item.type](parser, &item);
774
775 /*
776 * Handle special flags set during scanning.
777 */
778 if ((parser->scan_flags & HID_SCAN_FLAG_MT_WIN_8) &&
779 (hid->group == HID_GROUP_MULTITOUCH))
780 hid->group = HID_GROUP_MULTITOUCH_WIN_8;
781
782 vfree(parser);
783 return 0;
784 }
785
786 /**
787 * hid_parse_report - parse device report
788 *
789 * @device: hid device
790 * @start: report start
791 * @size: report size
792 *
793 * Allocate the device report as read by the bus driver. This function should
794 * only be called from parse() in ll drivers.
795 */
796 int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size)
797 {
798 hid->dev_rdesc = kmemdup(start, size, GFP_KERNEL);
799 if (!hid->dev_rdesc)
800 return -ENOMEM;
801 hid->dev_rsize = size;
802 return 0;
803 }
804 EXPORT_SYMBOL_GPL(hid_parse_report);
805
806 static const char * const hid_report_names[] = {
807 "HID_INPUT_REPORT",
808 "HID_OUTPUT_REPORT",
809 "HID_FEATURE_REPORT",
810 };
811 /**
812 * hid_validate_values - validate existing device report's value indexes
813 *
814 * @device: hid device
815 * @type: which report type to examine
816 * @id: which report ID to examine (0 for first)
817 * @field_index: which report field to examine
818 * @report_counts: expected number of values
819 *
820 * Validate the number of values in a given field of a given report, after
821 * parsing.
822 */
823 struct hid_report *hid_validate_values(struct hid_device *hid,
824 unsigned int type, unsigned int id,
825 unsigned int field_index,
826 unsigned int report_counts)
827 {
828 struct hid_report *report;
829
830 if (type > HID_FEATURE_REPORT) {
831 hid_err(hid, "invalid HID report type %u\n", type);
832 return NULL;
833 }
834
835 if (id >= HID_MAX_IDS) {
836 hid_err(hid, "invalid HID report id %u\n", id);
837 return NULL;
838 }
839
840 /*
841 * Explicitly not using hid_get_report() here since it depends on
842 * ->numbered being checked, which may not always be the case when
843 * drivers go to access report values.
844 */
845 if (id == 0) {
846 /*
847 * Validating on id 0 means we should examine the first
848 * report in the list.
849 */
850 report = list_entry(
851 hid->report_enum[type].report_list.next,
852 struct hid_report, list);
853 } else {
854 report = hid->report_enum[type].report_id_hash[id];
855 }
856 if (!report) {
857 hid_err(hid, "missing %s %u\n", hid_report_names[type], id);
858 return NULL;
859 }
860 if (report->maxfield <= field_index) {
861 hid_err(hid, "not enough fields in %s %u\n",
862 hid_report_names[type], id);
863 return NULL;
864 }
865 if (report->field[field_index]->report_count < report_counts) {
866 hid_err(hid, "not enough values in %s %u field %u\n",
867 hid_report_names[type], id, field_index);
868 return NULL;
869 }
870 return report;
871 }
872 EXPORT_SYMBOL_GPL(hid_validate_values);
873
874 /**
875 * hid_open_report - open a driver-specific device report
876 *
877 * @device: hid device
878 *
879 * Parse a report description into a hid_device structure. Reports are
880 * enumerated, fields are attached to these reports.
881 * 0 returned on success, otherwise nonzero error value.
882 *
883 * This function (or the equivalent hid_parse() macro) should only be
884 * called from probe() in drivers, before starting the device.
885 */
886 int hid_open_report(struct hid_device *device)
887 {
888 struct hid_parser *parser;
889 struct hid_item item;
890 unsigned int size;
891 __u8 *start;
892 __u8 *buf;
893 __u8 *end;
894 int ret;
895 static int (*dispatch_type[])(struct hid_parser *parser,
896 struct hid_item *item) = {
897 hid_parser_main,
898 hid_parser_global,
899 hid_parser_local,
900 hid_parser_reserved
901 };
902
903 if (WARN_ON(device->status & HID_STAT_PARSED))
904 return -EBUSY;
905
906 start = device->dev_rdesc;
907 if (WARN_ON(!start))
908 return -ENODEV;
909 size = device->dev_rsize;
910
911 buf = kmemdup(start, size, GFP_KERNEL);
912 if (buf == NULL)
913 return -ENOMEM;
914
915 if (device->driver->report_fixup)
916 start = device->driver->report_fixup(device, buf, &size);
917 else
918 start = buf;
919
920 start = kmemdup(start, size, GFP_KERNEL);
921 kfree(buf);
922 if (start == NULL)
923 return -ENOMEM;
924
925 device->rdesc = start;
926 device->rsize = size;
927
928 parser = vzalloc(sizeof(struct hid_parser));
929 if (!parser) {
930 ret = -ENOMEM;
931 goto err;
932 }
933
934 parser->device = device;
935
936 end = start + size;
937
938 device->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS,
939 sizeof(struct hid_collection), GFP_KERNEL);
940 if (!device->collection) {
941 ret = -ENOMEM;
942 goto err;
943 }
944 device->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
945
946 ret = -EINVAL;
947 while ((start = fetch_item(start, end, &item)) != NULL) {
948
949 if (item.format != HID_ITEM_FORMAT_SHORT) {
950 hid_err(device, "unexpected long global item\n");
951 goto err;
952 }
953
954 if (dispatch_type[item.type](parser, &item)) {
955 hid_err(device, "item %u %u %u %u parsing failed\n",
956 item.format, (unsigned)item.size,
957 (unsigned)item.type, (unsigned)item.tag);
958 goto err;
959 }
960
961 if (start == end) {
962 if (parser->collection_stack_ptr) {
963 hid_err(device, "unbalanced collection at end of report description\n");
964 goto err;
965 }
966 if (parser->local.delimiter_depth) {
967 hid_err(device, "unbalanced delimiter at end of report description\n");
968 goto err;
969 }
970 vfree(parser);
971 device->status |= HID_STAT_PARSED;
972 return 0;
973 }
974 }
975
976 hid_err(device, "item fetching failed at offset %d\n", (int)(end - start));
977 err:
978 vfree(parser);
979 hid_close_report(device);
980 return ret;
981 }
982 EXPORT_SYMBOL_GPL(hid_open_report);
983
984 /*
985 * Convert a signed n-bit integer to signed 32-bit integer. Common
986 * cases are done through the compiler, the screwed things has to be
987 * done by hand.
988 */
989
990 static s32 snto32(__u32 value, unsigned n)
991 {
992 switch (n) {
993 case 8: return ((__s8)value);
994 case 16: return ((__s16)value);
995 case 32: return ((__s32)value);
996 }
997 return value & (1 << (n - 1)) ? value | (-1 << n) : value;
998 }
999
1000 s32 hid_snto32(__u32 value, unsigned n)
1001 {
1002 return snto32(value, n);
1003 }
1004 EXPORT_SYMBOL_GPL(hid_snto32);
1005
1006 /*
1007 * Convert a signed 32-bit integer to a signed n-bit integer.
1008 */
1009
1010 static u32 s32ton(__s32 value, unsigned n)
1011 {
1012 s32 a = value >> (n - 1);
1013 if (a && a != -1)
1014 return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
1015 return value & ((1 << n) - 1);
1016 }
1017
1018 /*
1019 * Extract/implement a data field from/to a little endian report (bit array).
1020 *
1021 * Code sort-of follows HID spec:
1022 * http://www.usb.org/developers/devclass_docs/HID1_11.pdf
1023 *
1024 * While the USB HID spec allows unlimited length bit fields in "report
1025 * descriptors", most devices never use more than 16 bits.
1026 * One model of UPS is claimed to report "LINEV" as a 32-bit field.
1027 * Search linux-kernel and linux-usb-devel archives for "hid-core extract".
1028 */
1029
1030 static __u32 extract(const struct hid_device *hid, __u8 *report,
1031 unsigned offset, unsigned n)
1032 {
1033 u64 x;
1034
1035 if (n > 32)
1036 hid_warn(hid, "extract() called with n (%d) > 32! (%s)\n",
1037 n, current->comm);
1038
1039 report += offset >> 3; /* adjust byte index */
1040 offset &= 7; /* now only need bit offset into one byte */
1041 x = get_unaligned_le64(report);
1042 x = (x >> offset) & ((1ULL << n) - 1); /* extract bit field */
1043 return (u32) x;
1044 }
1045
1046 /*
1047 * "implement" : set bits in a little endian bit stream.
1048 * Same concepts as "extract" (see comments above).
1049 * The data mangled in the bit stream remains in little endian
1050 * order the whole time. It make more sense to talk about
1051 * endianness of register values by considering a register
1052 * a "cached" copy of the little endiad bit stream.
1053 */
1054 static void implement(const struct hid_device *hid, __u8 *report,
1055 unsigned offset, unsigned n, __u32 value)
1056 {
1057 u64 x;
1058 u64 m = (1ULL << n) - 1;
1059
1060 if (n > 32)
1061 hid_warn(hid, "%s() called with n (%d) > 32! (%s)\n",
1062 __func__, n, current->comm);
1063
1064 if (value > m)
1065 hid_warn(hid, "%s() called with too large value %d! (%s)\n",
1066 __func__, value, current->comm);
1067 WARN_ON(value > m);
1068 value &= m;
1069
1070 report += offset >> 3;
1071 offset &= 7;
1072
1073 x = get_unaligned_le64(report);
1074 x &= ~(m << offset);
1075 x |= ((u64)value) << offset;
1076 put_unaligned_le64(x, report);
1077 }
1078
1079 /*
1080 * Search an array for a value.
1081 */
1082
1083 static int search(__s32 *array, __s32 value, unsigned n)
1084 {
1085 while (n--) {
1086 if (*array++ == value)
1087 return 0;
1088 }
1089 return -1;
1090 }
1091
1092 /**
1093 * hid_match_report - check if driver's raw_event should be called
1094 *
1095 * @hid: hid device
1096 * @report_type: type to match against
1097 *
1098 * compare hid->driver->report_table->report_type to report->type
1099 */
1100 static int hid_match_report(struct hid_device *hid, struct hid_report *report)
1101 {
1102 const struct hid_report_id *id = hid->driver->report_table;
1103
1104 if (!id) /* NULL means all */
1105 return 1;
1106
1107 for (; id->report_type != HID_TERMINATOR; id++)
1108 if (id->report_type == HID_ANY_ID ||
1109 id->report_type == report->type)
1110 return 1;
1111 return 0;
1112 }
1113
1114 /**
1115 * hid_match_usage - check if driver's event should be called
1116 *
1117 * @hid: hid device
1118 * @usage: usage to match against
1119 *
1120 * compare hid->driver->usage_table->usage_{type,code} to
1121 * usage->usage_{type,code}
1122 */
1123 static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage)
1124 {
1125 const struct hid_usage_id *id = hid->driver->usage_table;
1126
1127 if (!id) /* NULL means all */
1128 return 1;
1129
1130 for (; id->usage_type != HID_ANY_ID - 1; id++)
1131 if ((id->usage_hid == HID_ANY_ID ||
1132 id->usage_hid == usage->hid) &&
1133 (id->usage_type == HID_ANY_ID ||
1134 id->usage_type == usage->type) &&
1135 (id->usage_code == HID_ANY_ID ||
1136 id->usage_code == usage->code))
1137 return 1;
1138 return 0;
1139 }
1140
1141 static void hid_process_event(struct hid_device *hid, struct hid_field *field,
1142 struct hid_usage *usage, __s32 value, int interrupt)
1143 {
1144 struct hid_driver *hdrv = hid->driver;
1145 int ret;
1146
1147 if (!list_empty(&hid->debug_list))
1148 hid_dump_input(hid, usage, value);
1149
1150 if (hdrv && hdrv->event && hid_match_usage(hid, usage)) {
1151 ret = hdrv->event(hid, field, usage, value);
1152 if (ret != 0) {
1153 if (ret < 0)
1154 hid_err(hid, "%s's event failed with %d\n",
1155 hdrv->name, ret);
1156 return;
1157 }
1158 }
1159
1160 if (hid->claimed & HID_CLAIMED_INPUT)
1161 hidinput_hid_event(hid, field, usage, value);
1162 if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event)
1163 hid->hiddev_hid_event(hid, field, usage, value);
1164 }
1165
1166 /*
1167 * Analyse a received field, and fetch the data from it. The field
1168 * content is stored for next report processing (we do differential
1169 * reporting to the layer).
1170 */
1171
1172 static void hid_input_field(struct hid_device *hid, struct hid_field *field,
1173 __u8 *data, int interrupt)
1174 {
1175 unsigned n;
1176 unsigned count = field->report_count;
1177 unsigned offset = field->report_offset;
1178 unsigned size = field->report_size;
1179 __s32 min = field->logical_minimum;
1180 __s32 max = field->logical_maximum;
1181 __s32 *value;
1182
1183 value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC);
1184 if (!value)
1185 return;
1186
1187 for (n = 0; n < count; n++) {
1188
1189 value[n] = min < 0 ?
1190 snto32(extract(hid, data, offset + n * size, size),
1191 size) :
1192 extract(hid, data, offset + n * size, size);
1193
1194 /* Ignore report if ErrorRollOver */
1195 if (!(field->flags & HID_MAIN_ITEM_VARIABLE) &&
1196 value[n] >= min && value[n] <= max &&
1197 field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
1198 goto exit;
1199 }
1200
1201 for (n = 0; n < count; n++) {
1202
1203 if (HID_MAIN_ITEM_VARIABLE & field->flags) {
1204 hid_process_event(hid, field, &field->usage[n], value[n], interrupt);
1205 continue;
1206 }
1207
1208 if (field->value[n] >= min && field->value[n] <= max
1209 && field->usage[field->value[n] - min].hid
1210 && search(value, field->value[n], count))
1211 hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt);
1212
1213 if (value[n] >= min && value[n] <= max
1214 && field->usage[value[n] - min].hid
1215 && search(field->value, value[n], count))
1216 hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt);
1217 }
1218
1219 memcpy(field->value, value, count * sizeof(__s32));
1220 exit:
1221 kfree(value);
1222 }
1223
1224 /*
1225 * Output the field into the report.
1226 */
1227
1228 static void hid_output_field(const struct hid_device *hid,
1229 struct hid_field *field, __u8 *data)
1230 {
1231 unsigned count = field->report_count;
1232 unsigned offset = field->report_offset;
1233 unsigned size = field->report_size;
1234 unsigned n;
1235
1236 for (n = 0; n < count; n++) {
1237 if (field->logical_minimum < 0) /* signed values */
1238 implement(hid, data, offset + n * size, size,
1239 s32ton(field->value[n], size));
1240 else /* unsigned values */
1241 implement(hid, data, offset + n * size, size,
1242 field->value[n]);
1243 }
1244 }
1245
1246 /*
1247 * Create a report. 'data' has to be allocated using
1248 * hid_alloc_report_buf() so that it has proper size.
1249 */
1250
1251 void hid_output_report(struct hid_report *report, __u8 *data)
1252 {
1253 unsigned n;
1254
1255 if (report->id > 0)
1256 *data++ = report->id;
1257
1258 memset(data, 0, ((report->size - 1) >> 3) + 1);
1259 for (n = 0; n < report->maxfield; n++)
1260 hid_output_field(report->device, report->field[n], data);
1261 }
1262 EXPORT_SYMBOL_GPL(hid_output_report);
1263
1264 /*
1265 * Allocator for buffer that is going to be passed to hid_output_report()
1266 */
1267 u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags)
1268 {
1269 /*
1270 * 7 extra bytes are necessary to achieve proper functionality
1271 * of implement() working on 8 byte chunks
1272 */
1273
1274 int len = ((report->size - 1) >> 3) + 1 + (report->id > 0) + 7;
1275
1276 return kmalloc(len, flags);
1277 }
1278 EXPORT_SYMBOL_GPL(hid_alloc_report_buf);
1279
1280 /*
1281 * Set a field value. The report this field belongs to has to be
1282 * created and transferred to the device, to set this value in the
1283 * device.
1284 */
1285
1286 int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
1287 {
1288 unsigned size;
1289
1290 if (!field)
1291 return -1;
1292
1293 size = field->report_size;
1294
1295 hid_dump_input(field->report->device, field->usage + offset, value);
1296
1297 if (offset >= field->report_count) {
1298 hid_err(field->report->device, "offset (%d) exceeds report_count (%d)\n",
1299 offset, field->report_count);
1300 return -1;
1301 }
1302 if (field->logical_minimum < 0) {
1303 if (value != snto32(s32ton(value, size), size)) {
1304 hid_err(field->report->device, "value %d is out of range\n", value);
1305 return -1;
1306 }
1307 }
1308 field->value[offset] = value;
1309 return 0;
1310 }
1311 EXPORT_SYMBOL_GPL(hid_set_field);
1312
1313 static struct hid_report *hid_get_report(struct hid_report_enum *report_enum,
1314 const u8 *data)
1315 {
1316 struct hid_report *report;
1317 unsigned int n = 0; /* Normally report number is 0 */
1318
1319 /* Device uses numbered reports, data[0] is report number */
1320 if (report_enum->numbered)
1321 n = *data;
1322
1323 report = report_enum->report_id_hash[n];
1324 if (report == NULL)
1325 dbg_hid("undefined report_id %u received\n", n);
1326
1327 return report;
1328 }
1329
1330 int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
1331 int interrupt)
1332 {
1333 struct hid_report_enum *report_enum = hid->report_enum + type;
1334 struct hid_report *report;
1335 struct hid_driver *hdrv;
1336 unsigned int a;
1337 int rsize, csize = size;
1338 u8 *cdata = data;
1339 int ret = 0;
1340
1341 report = hid_get_report(report_enum, data);
1342 if (!report)
1343 goto out;
1344
1345 if (report_enum->numbered) {
1346 cdata++;
1347 csize--;
1348 }
1349
1350 rsize = ((report->size - 1) >> 3) + 1;
1351
1352 if (rsize > HID_MAX_BUFFER_SIZE)
1353 rsize = HID_MAX_BUFFER_SIZE;
1354
1355 if (csize < rsize) {
1356 dbg_hid("report %d is too short, (%d < %d)\n", report->id,
1357 csize, rsize);
1358 memset(cdata + csize, 0, rsize - csize);
1359 }
1360
1361 if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event)
1362 hid->hiddev_report_event(hid, report);
1363 if (hid->claimed & HID_CLAIMED_HIDRAW) {
1364 ret = hidraw_report_event(hid, data, size);
1365 if (ret)
1366 goto out;
1367 }
1368
1369 if (hid->claimed != HID_CLAIMED_HIDRAW && report->maxfield) {
1370 for (a = 0; a < report->maxfield; a++)
1371 hid_input_field(hid, report->field[a], cdata, interrupt);
1372 hdrv = hid->driver;
1373 if (hdrv && hdrv->report)
1374 hdrv->report(hid, report);
1375 }
1376
1377 if (hid->claimed & HID_CLAIMED_INPUT)
1378 hidinput_report_event(hid, report);
1379 out:
1380 return ret;
1381 }
1382 EXPORT_SYMBOL_GPL(hid_report_raw_event);
1383
1384 /**
1385 * hid_input_report - report data from lower layer (usb, bt...)
1386 *
1387 * @hid: hid device
1388 * @type: HID report type (HID_*_REPORT)
1389 * @data: report contents
1390 * @size: size of data parameter
1391 * @interrupt: distinguish between interrupt and control transfers
1392 *
1393 * This is data entry for lower layers.
1394 */
1395 int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt)
1396 {
1397 struct hid_report_enum *report_enum;
1398 struct hid_driver *hdrv;
1399 struct hid_report *report;
1400 int ret = 0;
1401
1402 if (!hid)
1403 return -ENODEV;
1404
1405 if (down_trylock(&hid->driver_input_lock))
1406 return -EBUSY;
1407
1408 if (!hid->driver) {
1409 ret = -ENODEV;
1410 goto unlock;
1411 }
1412 report_enum = hid->report_enum + type;
1413 hdrv = hid->driver;
1414
1415 if (!size) {
1416 dbg_hid("empty report\n");
1417 ret = -1;
1418 goto unlock;
1419 }
1420
1421 /* Avoid unnecessary overhead if debugfs is disabled */
1422 if (!list_empty(&hid->debug_list))
1423 hid_dump_report(hid, type, data, size);
1424
1425 report = hid_get_report(report_enum, data);
1426
1427 if (!report) {
1428 ret = -1;
1429 goto unlock;
1430 }
1431
1432 if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) {
1433 ret = hdrv->raw_event(hid, report, data, size);
1434 if (ret < 0) {
1435 ret = ret < 0 ? ret : 0;
1436 goto unlock;
1437 }
1438 }
1439
1440 ret = hid_report_raw_event(hid, type, data, size, interrupt);
1441
1442 unlock:
1443 up(&hid->driver_input_lock);
1444 return ret;
1445 }
1446 EXPORT_SYMBOL_GPL(hid_input_report);
1447
1448 static bool hid_match_one_id(struct hid_device *hdev,
1449 const struct hid_device_id *id)
1450 {
1451 return (id->bus == HID_BUS_ANY || id->bus == hdev->bus) &&
1452 (id->group == HID_GROUP_ANY || id->group == hdev->group) &&
1453 (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) &&
1454 (id->product == HID_ANY_ID || id->product == hdev->product);
1455 }
1456
1457 const struct hid_device_id *hid_match_id(struct hid_device *hdev,
1458 const struct hid_device_id *id)
1459 {
1460 for (; id->bus; id++)
1461 if (hid_match_one_id(hdev, id))
1462 return id;
1463
1464 return NULL;
1465 }
1466
1467 static const struct hid_device_id hid_hiddev_list[] = {
1468 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) },
1469 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) },
1470 { }
1471 };
1472
1473 static bool hid_hiddev(struct hid_device *hdev)
1474 {
1475 return !!hid_match_id(hdev, hid_hiddev_list);
1476 }
1477
1478
1479 static ssize_t
1480 read_report_descriptor(struct file *filp, struct kobject *kobj,
1481 struct bin_attribute *attr,
1482 char *buf, loff_t off, size_t count)
1483 {
1484 struct device *dev = container_of(kobj, struct device, kobj);
1485 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1486
1487 if (off >= hdev->rsize)
1488 return 0;
1489
1490 if (off + count > hdev->rsize)
1491 count = hdev->rsize - off;
1492
1493 memcpy(buf, hdev->rdesc + off, count);
1494
1495 return count;
1496 }
1497
1498 static struct bin_attribute dev_bin_attr_report_desc = {
1499 .attr = { .name = "report_descriptor", .mode = 0444 },
1500 .read = read_report_descriptor,
1501 .size = HID_MAX_DESCRIPTOR_SIZE,
1502 };
1503
1504 int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
1505 {
1506 static const char *types[] = { "Device", "Pointer", "Mouse", "Device",
1507 "Joystick", "Gamepad", "Keyboard", "Keypad",
1508 "Multi-Axis Controller"
1509 };
1510 const char *type, *bus;
1511 char buf[64];
1512 unsigned int i;
1513 int len;
1514 int ret;
1515
1516 if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE)
1517 connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV);
1518 if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE)
1519 connect_mask |= HID_CONNECT_HIDINPUT_FORCE;
1520 if (hdev->bus != BUS_USB)
1521 connect_mask &= ~HID_CONNECT_HIDDEV;
1522 if (hid_hiddev(hdev))
1523 connect_mask |= HID_CONNECT_HIDDEV_FORCE;
1524
1525 if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,
1526 connect_mask & HID_CONNECT_HIDINPUT_FORCE))
1527 hdev->claimed |= HID_CLAIMED_INPUT;
1528
1529 if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect &&
1530 !hdev->hiddev_connect(hdev,
1531 connect_mask & HID_CONNECT_HIDDEV_FORCE))
1532 hdev->claimed |= HID_CLAIMED_HIDDEV;
1533 if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev))
1534 hdev->claimed |= HID_CLAIMED_HIDRAW;
1535
1536 /* Drivers with the ->raw_event callback set are not required to connect
1537 * to any other listener. */
1538 if (!hdev->claimed && !hdev->driver->raw_event) {
1539 hid_err(hdev, "device has no listeners, quitting\n");
1540 return -ENODEV;
1541 }
1542
1543 if ((hdev->claimed & HID_CLAIMED_INPUT) &&
1544 (connect_mask & HID_CONNECT_FF) && hdev->ff_init)
1545 hdev->ff_init(hdev);
1546
1547 len = 0;
1548 if (hdev->claimed & HID_CLAIMED_INPUT)
1549 len += sprintf(buf + len, "input");
1550 if (hdev->claimed & HID_CLAIMED_HIDDEV)
1551 len += sprintf(buf + len, "%shiddev%d", len ? "," : "",
1552 hdev->minor);
1553 if (hdev->claimed & HID_CLAIMED_HIDRAW)
1554 len += sprintf(buf + len, "%shidraw%d", len ? "," : "",
1555 ((struct hidraw *)hdev->hidraw)->minor);
1556
1557 type = "Device";
1558 for (i = 0; i < hdev->maxcollection; i++) {
1559 struct hid_collection *col = &hdev->collection[i];
1560 if (col->type == HID_COLLECTION_APPLICATION &&
1561 (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
1562 (col->usage & 0xffff) < ARRAY_SIZE(types)) {
1563 type = types[col->usage & 0xffff];
1564 break;
1565 }
1566 }
1567
1568 switch (hdev->bus) {
1569 case BUS_USB:
1570 bus = "USB";
1571 break;
1572 case BUS_BLUETOOTH:
1573 bus = "BLUETOOTH";
1574 break;
1575 default:
1576 bus = "<UNKNOWN>";
1577 }
1578
1579 ret = device_create_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1580 if (ret)
1581 hid_warn(hdev,
1582 "can't create sysfs report descriptor attribute err: %d\n", ret);
1583
1584 hid_info(hdev, "%s: %s HID v%x.%02x %s [%s] on %s\n",
1585 buf, bus, hdev->version >> 8, hdev->version & 0xff,
1586 type, hdev->name, hdev->phys);
1587
1588 return 0;
1589 }
1590 EXPORT_SYMBOL_GPL(hid_connect);
1591
1592 void hid_disconnect(struct hid_device *hdev)
1593 {
1594 device_remove_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1595 if (hdev->claimed & HID_CLAIMED_INPUT)
1596 hidinput_disconnect(hdev);
1597 if (hdev->claimed & HID_CLAIMED_HIDDEV)
1598 hdev->hiddev_disconnect(hdev);
1599 if (hdev->claimed & HID_CLAIMED_HIDRAW)
1600 hidraw_disconnect(hdev);
1601 }
1602 EXPORT_SYMBOL_GPL(hid_disconnect);
1603
1604 /*
1605 * A list of devices for which there is a specialized driver on HID bus.
1606 *
1607 * Please note that for multitouch devices (driven by hid-multitouch driver),
1608 * there is a proper autodetection and autoloading in place (based on presence
1609 * of HID_DG_CONTACTID), so those devices don't need to be added to this list,
1610 * as we are doing the right thing in hid_scan_usage().
1611 *
1612 * Autodetection for (USB) HID sensor hubs exists too. If a collection of type
1613 * physical is found inside a usage page of type sensor, hid-sensor-hub will be
1614 * used as a driver. See hid_scan_report().
1615 */
1616 static const struct hid_device_id hid_have_special_driver[] = {
1617 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
1618 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
1619 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) },
1620 { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) },
1621 { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0xf705) },
1622 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
1623 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
1624 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) },
1625 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1626 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1627 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1628 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1629 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1630 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1631 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1632 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1633 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1634 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1635 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1636 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) },
1637 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) },
1638 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) },
1639 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) },
1640 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) },
1641 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) },
1642 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1643 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1644 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
1645 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL) },
1646 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL2) },
1647 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL3) },
1648 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
1649 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL5) },
1650 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) },
1651 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) },
1652 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) },
1653 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1654 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1655 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1656 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1657 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1658 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
1659 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1660 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1661 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
1662 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
1663 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
1664 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
1665 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
1666 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
1667 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
1668 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
1669 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
1670 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
1671 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
1672 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
1673 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
1674 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ANSI) },
1675 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ISO) },
1676 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_JIS) },
1677 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
1678 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
1679 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
1680 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
1681 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
1682 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
1683 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
1684 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
1685 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
1686 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) },
1687 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) },
1688 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) },
1689 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI) },
1690 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO) },
1691 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS) },
1692 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) },
1693 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) },
1694 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) },
1695 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI) },
1696 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO) },
1697 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1698 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1699 { HID_USB_DEVICE(USB_VENDOR_ID_AUREAL, USB_DEVICE_ID_AUREAL_W01RN) },
1700 { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
1701 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
1702 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
1703 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
1704 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
1705 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
1706 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS) },
1707 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) },
1708 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_AK1D) },
1709 { HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) },
1710 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) },
1711 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) },
1712 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) },
1713 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_4) },
1714 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
1715 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
1716 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011) },
1717 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
1718 { HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0009) },
1719 { HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0030) },
1720 { HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) },
1721 { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
1722 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) },
1723 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) },
1724 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) },
1725 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) },
1726 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
1727 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
1728 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
1729 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) },
1730 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) },
1731 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A) },
1732 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067) },
1733 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A072) },
1734 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081) },
1735 { HID_USB_DEVICE(USB_VENDOR_ID_HUION, USB_DEVICE_ID_HUION_580) },
1736 { HID_USB_DEVICE(USB_VENDOR_ID_JESS2, USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD) },
1737 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ION, USB_DEVICE_ID_ICADE) },
1738 { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
1739 { HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) },
1740 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GILA_GAMING_MOUSE) },
1741 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_MANTICORE) },
1742 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GX_IMPERATOR) },
1743 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
1744 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_I405X) },
1745 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X) },
1746 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X) },
1747 { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
1748 { HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) },
1749 #if IS_ENABLED(CONFIG_HID_LENOVO_TPKBD)
1750 { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) },
1751 #endif
1752 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
1753 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
1754 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) },
1755 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) },
1756 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_PS3) },
1757 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) },
1758 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) },
1759 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) },
1760 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) },
1761 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) },
1762 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) },
1763 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) },
1764 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) },
1765 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
1766 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },
1767 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
1768 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) },
1769 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
1770 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) },
1771 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
1772 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
1773 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_VIBRATION_WHEEL) },
1774 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFP_WHEEL) },
1775 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFGT_WHEEL) },
1776 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
1777 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G27_WHEEL) },
1778 #if IS_ENABLED(CONFIG_HID_LOGITECH_DJ)
1779 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER) },
1780 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2) },
1781 #endif
1782 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) },
1783 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) },
1784 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) },
1785 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) },
1786 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
1787 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
1788 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500) },
1789 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) },
1790 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) },
1791 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K_JP) },
1792 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) },
1793 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) },
1794 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K) },
1795 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
1796 { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
1797 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
1798 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) },
1799 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) },
1800 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) },
1801 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) },
1802 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) },
1803 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) },
1804 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) },
1805 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) },
1806 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) },
1807 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) },
1808 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) },
1809 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) },
1810 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) },
1811 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) },
1812 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) },
1813 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) },
1814 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) },
1815 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) },
1816 { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) },
1817 { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
1818 { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
1819 { HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_KEYBOARD) },
1820 #if IS_ENABLED(CONFIG_HID_ROCCAT)
1821 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) },
1822 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
1823 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKUFX) },
1824 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
1825 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
1826 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE) },
1827 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE_OPTICAL) },
1828 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEXTD) },
1829 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
1830 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_LUA) },
1831 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
1832 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) },
1833 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_SAVU) },
1834 #endif
1835 { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000) },
1836 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
1837 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
1838 { HID_USB_DEVICE(USB_VENDOR_ID_SIS_TOUCH, USB_DEVICE_ID_SIS9200_TOUCH) },
1839 { HID_USB_DEVICE(USB_VENDOR_ID_SIS_TOUCH, USB_DEVICE_ID_SIS817_TOUCH) },
1840 { HID_USB_DEVICE(USB_VENDOR_ID_SIS_TOUCH, USB_DEVICE_ID_SIS1030_TOUCH) },
1841 { HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
1842 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_BUZZ_CONTROLLER) },
1843 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_WIRELESS_BUZZ_CONTROLLER) },
1844 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_BDREMOTE) },
1845 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1846 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER) },
1847 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1848 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
1849 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGP_MOUSE) },
1850 { HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, USB_DEVICE_ID_STEELSERIES_SRWS1) },
1851 { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
1852 { HID_USB_DEVICE(USB_VENDOR_ID_THINGM, USB_DEVICE_ID_BLINK1) },
1853 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
1854 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
1855 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) },
1856 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) },
1857 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
1858 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) },
1859 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
1860 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) },
1861 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) },
1862 { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) },
1863 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
1864 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
1865 { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
1866 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
1867 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
1868 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
1869 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
1870 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP1062) },
1871 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_WIRELESS_TABLET_TWHL850) },
1872 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_TWHA60) },
1873 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
1874 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SUPER_JOY_BOX_3) },
1875 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD) },
1876 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO) },
1877 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO) },
1878 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO) },
1879 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
1880 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) },
1881 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
1882 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
1883 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_Q_PAD) },
1884 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_PID_0038) },
1885 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
1886 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
1887 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET) },
1888 { HID_USB_DEVICE(USB_VENDOR_ID_X_TENSIONS, USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE) },
1889 { HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_XIN_MO_DUAL_ARCADE) },
1890 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
1891 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
1892 { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
1893
1894 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
1895 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) },
1896 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO2, USB_DEVICE_ID_NINTENDO_WIIMOTE) },
1897 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE2) },
1898 { }
1899 };
1900
1901 struct hid_dynid {
1902 struct list_head list;
1903 struct hid_device_id id;
1904 };
1905
1906 /**
1907 * store_new_id - add a new HID device ID to this driver and re-probe devices
1908 * @driver: target device driver
1909 * @buf: buffer for scanning device ID data
1910 * @count: input size
1911 *
1912 * Adds a new dynamic hid device ID to this driver,
1913 * and causes the driver to probe for all devices again.
1914 */
1915 static ssize_t store_new_id(struct device_driver *drv, const char *buf,
1916 size_t count)
1917 {
1918 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1919 struct hid_dynid *dynid;
1920 __u32 bus, vendor, product;
1921 unsigned long driver_data = 0;
1922 int ret;
1923
1924 ret = sscanf(buf, "%x %x %x %lx",
1925 &bus, &vendor, &product, &driver_data);
1926 if (ret < 3)
1927 return -EINVAL;
1928
1929 dynid = kzalloc(sizeof(*dynid), GFP_KERNEL);
1930 if (!dynid)
1931 return -ENOMEM;
1932
1933 dynid->id.bus = bus;
1934 dynid->id.group = HID_GROUP_ANY;
1935 dynid->id.vendor = vendor;
1936 dynid->id.product = product;
1937 dynid->id.driver_data = driver_data;
1938
1939 spin_lock(&hdrv->dyn_lock);
1940 list_add_tail(&dynid->list, &hdrv->dyn_list);
1941 spin_unlock(&hdrv->dyn_lock);
1942
1943 ret = driver_attach(&hdrv->driver);
1944
1945 return ret ? : count;
1946 }
1947 static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
1948
1949 static void hid_free_dynids(struct hid_driver *hdrv)
1950 {
1951 struct hid_dynid *dynid, *n;
1952
1953 spin_lock(&hdrv->dyn_lock);
1954 list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) {
1955 list_del(&dynid->list);
1956 kfree(dynid);
1957 }
1958 spin_unlock(&hdrv->dyn_lock);
1959 }
1960
1961 static const struct hid_device_id *hid_match_device(struct hid_device *hdev,
1962 struct hid_driver *hdrv)
1963 {
1964 struct hid_dynid *dynid;
1965
1966 spin_lock(&hdrv->dyn_lock);
1967 list_for_each_entry(dynid, &hdrv->dyn_list, list) {
1968 if (hid_match_one_id(hdev, &dynid->id)) {
1969 spin_unlock(&hdrv->dyn_lock);
1970 return &dynid->id;
1971 }
1972 }
1973 spin_unlock(&hdrv->dyn_lock);
1974
1975 return hid_match_id(hdev, hdrv->id_table);
1976 }
1977
1978 static int hid_bus_match(struct device *dev, struct device_driver *drv)
1979 {
1980 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1981 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1982
1983 return hid_match_device(hdev, hdrv) != NULL;
1984 }
1985
1986 static int hid_device_probe(struct device *dev)
1987 {
1988 struct hid_driver *hdrv = container_of(dev->driver,
1989 struct hid_driver, driver);
1990 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1991 const struct hid_device_id *id;
1992 int ret = 0;
1993
1994 if (down_interruptible(&hdev->driver_lock))
1995 return -EINTR;
1996 if (down_interruptible(&hdev->driver_input_lock)) {
1997 ret = -EINTR;
1998 goto unlock_driver_lock;
1999 }
2000 hdev->io_started = false;
2001
2002 if (!hdev->driver) {
2003 id = hid_match_device(hdev, hdrv);
2004 if (id == NULL) {
2005 ret = -ENODEV;
2006 goto unlock;
2007 }
2008
2009 hdev->driver = hdrv;
2010 if (hdrv->probe) {
2011 ret = hdrv->probe(hdev, id);
2012 } else { /* default probe */
2013 ret = hid_open_report(hdev);
2014 if (!ret)
2015 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
2016 }
2017 if (ret) {
2018 hid_close_report(hdev);
2019 hdev->driver = NULL;
2020 }
2021 }
2022 unlock:
2023 if (!hdev->io_started)
2024 up(&hdev->driver_input_lock);
2025 unlock_driver_lock:
2026 up(&hdev->driver_lock);
2027 return ret;
2028 }
2029
2030 static int hid_device_remove(struct device *dev)
2031 {
2032 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
2033 struct hid_driver *hdrv;
2034 int ret = 0;
2035
2036 if (down_interruptible(&hdev->driver_lock))
2037 return -EINTR;
2038 if (down_interruptible(&hdev->driver_input_lock)) {
2039 ret = -EINTR;
2040 goto unlock_driver_lock;
2041 }
2042 hdev->io_started = false;
2043
2044 hdrv = hdev->driver;
2045 if (hdrv) {
2046 if (hdrv->remove)
2047 hdrv->remove(hdev);
2048 else /* default remove */
2049 hid_hw_stop(hdev);
2050 hid_close_report(hdev);
2051 hdev->driver = NULL;
2052 }
2053
2054 if (!hdev->io_started)
2055 up(&hdev->driver_input_lock);
2056 unlock_driver_lock:
2057 up(&hdev->driver_lock);
2058 return ret;
2059 }
2060
2061 static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
2062 char *buf)
2063 {
2064 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
2065 int len;
2066
2067 len = snprintf(buf, PAGE_SIZE, "hid:b%04Xg%04Xv%08Xp%08X\n",
2068 hdev->bus, hdev->group, hdev->vendor, hdev->product);
2069
2070 return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
2071 }
2072 static DEVICE_ATTR_RO(modalias);
2073
2074 static struct attribute *hid_dev_attrs[] = {
2075 &dev_attr_modalias.attr,
2076 NULL,
2077 };
2078 ATTRIBUTE_GROUPS(hid_dev);
2079
2080 static int hid_uevent(struct device *dev, struct kobj_uevent_env *env)
2081 {
2082 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
2083
2084 if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X",
2085 hdev->bus, hdev->vendor, hdev->product))
2086 return -ENOMEM;
2087
2088 if (add_uevent_var(env, "HID_NAME=%s", hdev->name))
2089 return -ENOMEM;
2090
2091 if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys))
2092 return -ENOMEM;
2093
2094 if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq))
2095 return -ENOMEM;
2096
2097 if (add_uevent_var(env, "MODALIAS=hid:b%04Xg%04Xv%08Xp%08X",
2098 hdev->bus, hdev->group, hdev->vendor, hdev->product))
2099 return -ENOMEM;
2100
2101 return 0;
2102 }
2103
2104 static struct bus_type hid_bus_type = {
2105 .name = "hid",
2106 .dev_groups = hid_dev_groups,
2107 .match = hid_bus_match,
2108 .probe = hid_device_probe,
2109 .remove = hid_device_remove,
2110 .uevent = hid_uevent,
2111 };
2112
2113 /* a list of devices that shouldn't be handled by HID core at all */
2114 static const struct hid_device_id hid_ignore_list[] = {
2115 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) },
2116 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) },
2117 { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) },
2118 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) },
2119 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) },
2120 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) },
2121 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) },
2122 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) },
2123 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) },
2124 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) },
2125 { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) },
2126 { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) },
2127 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)},
2128 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)},
2129 { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) },
2130 { HID_USB_DEVICE(USB_VENDOR_ID_AXENTIA, USB_DEVICE_ID_AXENTIA_FM_RADIO) },
2131 { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) },
2132 { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) },
2133 { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) },
2134 { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) },
2135 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) },
2136 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) },
2137 { HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) },
2138 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) },
2139 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
2140 { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x0004) },
2141 { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x000a) },
2142 { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
2143 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
2144 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
2145 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) },
2146 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) },
2147 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) },
2148 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) },
2149 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) },
2150 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) },
2151 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) },
2152 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) },
2153 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) },
2154 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) },
2155 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) },
2156 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) },
2157 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) },
2158 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) },
2159 { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) },
2160 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) },
2161 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) },
2162 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_RADIOSHARK) },
2163 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) },
2164 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) },
2165 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) },
2166 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) },
2167 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) },
2168 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) },
2169 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) },
2170 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) },
2171 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) },
2172 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) },
2173 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) },
2174 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) },
2175 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) },
2176 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) },
2177 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) },
2178 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) },
2179 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) },
2180 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) },
2181 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) },
2182 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) },
2183 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) },
2184 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) },
2185 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) },
2186 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) },
2187 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) },
2188 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) },
2189 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) },
2190 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) },
2191 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) },
2192 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) },
2193 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) },
2194 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) },
2195 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) },
2196 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) },
2197 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) },
2198 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) },
2199 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) },
2200 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) },
2201 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) },
2202 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) },
2203 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) },
2204 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) },
2205 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) },
2206 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) },
2207 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) },
2208 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) },
2209 { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) },
2210 { HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_SPEAK_410) },
2211 { HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_SPEAK_510) },
2212 { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) },
2213 { HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) },
2214 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) },
2215 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) },
2216 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) },
2217 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY2) },
2218 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) },
2219 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY2) },
2220 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) },
2221 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY2) },
2222 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYVOLTAGE) },
2223 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYCURRENT) },
2224 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTIME) },
2225 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTEMPERATURE) },
2226 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYPH) },
2227 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) },
2228 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) },
2229 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) },
2230 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIC) },
2231 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIB) },
2232 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY) },
2233 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) },
2234 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) },
2235 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOTOR) },
2236 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) },
2237 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) },
2238 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) },
2239 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) },
2240 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) },
2241 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER) },
2242 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER2) },
2243 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_ABSESP) },
2244 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_AUTODATABUS) },
2245 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MCT) },
2246 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HYBRID) },
2247 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HEATCONTROL) },
2248 { HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_BEATPAD) },
2249 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) },
2250 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) },
2251 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) },
2252 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) },
2253 { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) },
2254 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) },
2255 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) },
2256 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) },
2257 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) },
2258 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) },
2259 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) },
2260 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) },
2261 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) },
2262 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) },
2263 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) },
2264 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) },
2265 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) },
2266 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) },
2267 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
2268 { HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
2269 { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
2270 #if defined(CONFIG_MOUSE_SYNAPTICS_USB) || defined(CONFIG_MOUSE_SYNAPTICS_USB_MODULE)
2271 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_TP) },
2272 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_INT_TP) },
2273 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_CPAD) },
2274 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_STICK) },
2275 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WP) },
2276 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_COMP_TP) },
2277 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WTP) },
2278 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_DPAD) },
2279 #endif
2280 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) },
2281 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
2282 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },
2283 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) },
2284 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) },
2285 { HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) },
2286 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) },
2287 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) },
2288 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) },
2289 { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) },
2290 { }
2291 };
2292
2293 /**
2294 * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer
2295 *
2296 * There are composite devices for which we want to ignore only a certain
2297 * interface. This is a list of devices for which only the mouse interface will
2298 * be ignored. This allows a dedicated driver to take care of the interface.
2299 */
2300 static const struct hid_device_id hid_mouse_ignore_list[] = {
2301 /* appletouch driver */
2302 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
2303 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
2304 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
2305 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
2306 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
2307 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
2308 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
2309 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
2310 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
2311 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
2312 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
2313 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
2314 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
2315 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
2316 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
2317 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
2318 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
2319 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
2320 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
2321 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
2322 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
2323 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
2324 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
2325 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
2326 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
2327 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
2328 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
2329 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
2330 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
2331 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
2332 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
2333 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
2334 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
2335 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
2336 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
2337 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
2338 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
2339 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
2340 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
2341 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
2342 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
2343 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
2344 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
2345 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
2346 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) },
2347 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) },
2348 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) },
2349 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI) },
2350 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO) },
2351 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS) },
2352 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
2353 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
2354 { }
2355 };
2356
2357 bool hid_ignore(struct hid_device *hdev)
2358 {
2359 if (hdev->quirks & HID_QUIRK_NO_IGNORE)
2360 return false;
2361 if (hdev->quirks & HID_QUIRK_IGNORE)
2362 return true;
2363
2364 switch (hdev->vendor) {
2365 case USB_VENDOR_ID_CODEMERCS:
2366 /* ignore all Code Mercenaries IOWarrior devices */
2367 if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST &&
2368 hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST)
2369 return true;
2370 break;
2371 case USB_VENDOR_ID_LOGITECH:
2372 if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST &&
2373 hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST)
2374 return true;
2375 /*
2376 * The Keene FM transmitter USB device has the same USB ID as
2377 * the Logitech AudioHub Speaker, but it should ignore the hid.
2378 * Check if the name is that of the Keene device.
2379 * For reference: the name of the AudioHub is
2380 * "HOLTEK AudioHub Speaker".
2381 */
2382 if (hdev->product == USB_DEVICE_ID_LOGITECH_AUDIOHUB &&
2383 !strcmp(hdev->name, "HOLTEK B-LINK USB Audio "))
2384 return true;
2385 break;
2386 case USB_VENDOR_ID_SOUNDGRAPH:
2387 if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST &&
2388 hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST)
2389 return true;
2390 break;
2391 case USB_VENDOR_ID_HANWANG:
2392 if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST &&
2393 hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST)
2394 return true;
2395 break;
2396 case USB_VENDOR_ID_JESS:
2397 if (hdev->product == USB_DEVICE_ID_JESS_YUREX &&
2398 hdev->type == HID_TYPE_USBNONE)
2399 return true;
2400 break;
2401 case USB_VENDOR_ID_VELLEMAN:
2402 /* These are not HID devices. They are handled by comedi. */
2403 if ((hdev->product >= USB_DEVICE_ID_VELLEMAN_K8055_FIRST &&
2404 hdev->product <= USB_DEVICE_ID_VELLEMAN_K8055_LAST) ||
2405 (hdev->product >= USB_DEVICE_ID_VELLEMAN_K8061_FIRST &&
2406 hdev->product <= USB_DEVICE_ID_VELLEMAN_K8061_LAST))
2407 return true;
2408 break;
2409 case USB_VENDOR_ID_ATMEL_V_USB:
2410 /* Masterkit MA901 usb radio based on Atmel tiny85 chip and
2411 * it has the same USB ID as many Atmel V-USB devices. This
2412 * usb radio is handled by radio-ma901.c driver so we want
2413 * ignore the hid. Check the name, bus, product and ignore
2414 * if we have MA901 usb radio.
2415 */
2416 if (hdev->product == USB_DEVICE_ID_ATMEL_V_USB &&
2417 hdev->bus == BUS_USB &&
2418 strncmp(hdev->name, "www.masterkit.ru MA901", 22) == 0)
2419 return true;
2420 break;
2421 }
2422
2423 if (hdev->type == HID_TYPE_USBMOUSE &&
2424 hid_match_id(hdev, hid_mouse_ignore_list))
2425 return true;
2426
2427 return !!hid_match_id(hdev, hid_ignore_list);
2428 }
2429 EXPORT_SYMBOL_GPL(hid_ignore);
2430
2431 int hid_add_device(struct hid_device *hdev)
2432 {
2433 static atomic_t id = ATOMIC_INIT(0);
2434 int ret;
2435
2436 if (WARN_ON(hdev->status & HID_STAT_ADDED))
2437 return -EBUSY;
2438
2439 /* we need to kill them here, otherwise they will stay allocated to
2440 * wait for coming driver */
2441 if (hid_ignore(hdev))
2442 return -ENODEV;
2443
2444 /*
2445 * Read the device report descriptor once and use as template
2446 * for the driver-specific modifications.
2447 */
2448 ret = hdev->ll_driver->parse(hdev);
2449 if (ret)
2450 return ret;
2451 if (!hdev->dev_rdesc)
2452 return -ENODEV;
2453
2454 /*
2455 * Scan generic devices for group information
2456 */
2457 if (hid_ignore_special_drivers ||
2458 !hid_match_id(hdev, hid_have_special_driver)) {
2459 ret = hid_scan_report(hdev);
2460 if (ret)
2461 hid_warn(hdev, "bad device descriptor (%d)\n", ret);
2462 }
2463
2464 /* XXX hack, any other cleaner solution after the driver core
2465 * is converted to allow more than 20 bytes as the device name? */
2466 dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
2467 hdev->vendor, hdev->product, atomic_inc_return(&id));
2468
2469 hid_debug_register(hdev, dev_name(&hdev->dev));
2470 ret = device_add(&hdev->dev);
2471 if (!ret)
2472 hdev->status |= HID_STAT_ADDED;
2473 else
2474 hid_debug_unregister(hdev);
2475
2476 return ret;
2477 }
2478 EXPORT_SYMBOL_GPL(hid_add_device);
2479
2480 /**
2481 * hid_allocate_device - allocate new hid device descriptor
2482 *
2483 * Allocate and initialize hid device, so that hid_destroy_device might be
2484 * used to free it.
2485 *
2486 * New hid_device pointer is returned on success, otherwise ERR_PTR encoded
2487 * error value.
2488 */
2489 struct hid_device *hid_allocate_device(void)
2490 {
2491 struct hid_device *hdev;
2492 int ret = -ENOMEM;
2493
2494 hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
2495 if (hdev == NULL)
2496 return ERR_PTR(ret);
2497
2498 device_initialize(&hdev->dev);
2499 hdev->dev.release = hid_device_release;
2500 hdev->dev.bus = &hid_bus_type;
2501
2502 hid_close_report(hdev);
2503
2504 init_waitqueue_head(&hdev->debug_wait);
2505 INIT_LIST_HEAD(&hdev->debug_list);
2506 spin_lock_init(&hdev->debug_list_lock);
2507 sema_init(&hdev->driver_lock, 1);
2508 sema_init(&hdev->driver_input_lock, 1);
2509
2510 return hdev;
2511 }
2512 EXPORT_SYMBOL_GPL(hid_allocate_device);
2513
2514 static void hid_remove_device(struct hid_device *hdev)
2515 {
2516 if (hdev->status & HID_STAT_ADDED) {
2517 device_del(&hdev->dev);
2518 hid_debug_unregister(hdev);
2519 hdev->status &= ~HID_STAT_ADDED;
2520 }
2521 kfree(hdev->dev_rdesc);
2522 hdev->dev_rdesc = NULL;
2523 hdev->dev_rsize = 0;
2524 }
2525
2526 /**
2527 * hid_destroy_device - free previously allocated device
2528 *
2529 * @hdev: hid device
2530 *
2531 * If you allocate hid_device through hid_allocate_device, you should ever
2532 * free by this function.
2533 */
2534 void hid_destroy_device(struct hid_device *hdev)
2535 {
2536 hid_remove_device(hdev);
2537 put_device(&hdev->dev);
2538 }
2539 EXPORT_SYMBOL_GPL(hid_destroy_device);
2540
2541 int __hid_register_driver(struct hid_driver *hdrv, struct module *owner,
2542 const char *mod_name)
2543 {
2544 int ret;
2545
2546 hdrv->driver.name = hdrv->name;
2547 hdrv->driver.bus = &hid_bus_type;
2548 hdrv->driver.owner = owner;
2549 hdrv->driver.mod_name = mod_name;
2550
2551 INIT_LIST_HEAD(&hdrv->dyn_list);
2552 spin_lock_init(&hdrv->dyn_lock);
2553
2554 ret = driver_register(&hdrv->driver);
2555 if (ret)
2556 return ret;
2557
2558 ret = driver_create_file(&hdrv->driver, &driver_attr_new_id);
2559 if (ret)
2560 driver_unregister(&hdrv->driver);
2561
2562 return ret;
2563 }
2564 EXPORT_SYMBOL_GPL(__hid_register_driver);
2565
2566 void hid_unregister_driver(struct hid_driver *hdrv)
2567 {
2568 driver_remove_file(&hdrv->driver, &driver_attr_new_id);
2569 driver_unregister(&hdrv->driver);
2570 hid_free_dynids(hdrv);
2571 }
2572 EXPORT_SYMBOL_GPL(hid_unregister_driver);
2573
2574 int hid_check_keys_pressed(struct hid_device *hid)
2575 {
2576 struct hid_input *hidinput;
2577 int i;
2578
2579 if (!(hid->claimed & HID_CLAIMED_INPUT))
2580 return 0;
2581
2582 list_for_each_entry(hidinput, &hid->inputs, list) {
2583 for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++)
2584 if (hidinput->input->key[i])
2585 return 1;
2586 }
2587
2588 return 0;
2589 }
2590
2591 EXPORT_SYMBOL_GPL(hid_check_keys_pressed);
2592
2593 static int __init hid_init(void)
2594 {
2595 int ret;
2596
2597 if (hid_debug)
2598 pr_warn("hid_debug is now used solely for parser and driver debugging.\n"
2599 "debugfs is now used for inspecting the device (report descriptor, reports)\n");
2600
2601 ret = bus_register(&hid_bus_type);
2602 if (ret) {
2603 pr_err("can't register hid bus\n");
2604 goto err;
2605 }
2606
2607 ret = hidraw_init();
2608 if (ret)
2609 goto err_bus;
2610
2611 hid_debug_init();
2612
2613 return 0;
2614 err_bus:
2615 bus_unregister(&hid_bus_type);
2616 err:
2617 return ret;
2618 }
2619
2620 static void __exit hid_exit(void)
2621 {
2622 hid_debug_exit();
2623 hidraw_exit();
2624 bus_unregister(&hid_bus_type);
2625 }
2626
2627 module_init(hid_init);
2628 module_exit(hid_exit);
2629
2630 MODULE_AUTHOR("Andreas Gal");
2631 MODULE_AUTHOR("Vojtech Pavlik");
2632 MODULE_AUTHOR("Jiri Kosina");
2633 MODULE_LICENSE(DRIVER_LICENSE);
2634
Linux with added FPC-III support