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mm/page_cgroup.c: use memblock apis for early memory allocations
[linux-2.6/btrfs-unstable.git] / drivers / hid / hid-core.c
blob253fe23ef7fe5332ea03f96449f312a69a6b80c0
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 for (i = 0; i < parser->local.usage_index; i++)
722 hid_scan_input_usage(parser, parser->local.usage[i]);
723 break;
724 case HID_MAIN_ITEM_TAG_OUTPUT:
725 break;
726 case HID_MAIN_ITEM_TAG_FEATURE:
727 for (i = 0; i < parser->local.usage_index; i++)
728 hid_scan_feature_usage(parser, parser->local.usage[i]);
729 break;
730 }
731
732 /* Reset the local parser environment */
733 memset(&parser->local, 0, sizeof(parser->local));
734
735 return 0;
736 }
737
738 /*
739 * Scan a report descriptor before the device is added to the bus.
740 * Sets device groups and other properties that determine what driver
741 * to load.
742 */
743 static int hid_scan_report(struct hid_device *hid)
744 {
745 struct hid_parser *parser;
746 struct hid_item item;
747 __u8 *start = hid->dev_rdesc;
748 __u8 *end = start + hid->dev_rsize;
749 static int (*dispatch_type[])(struct hid_parser *parser,
750 struct hid_item *item) = {
751 hid_scan_main,
752 hid_parser_global,
753 hid_parser_local,
754 hid_parser_reserved
755 };
756
757 parser = vzalloc(sizeof(struct hid_parser));
758 if (!parser)
759 return -ENOMEM;
760
761 parser->device = hid;
762 hid->group = HID_GROUP_GENERIC;
763
764 /*
765 * The parsing is simpler than the one in hid_open_report() as we should
766 * be robust against hid errors. Those errors will be raised by
767 * hid_open_report() anyway.
768 */
769 while ((start = fetch_item(start, end, &item)) != NULL)
770 dispatch_type[item.type](parser, &item);
771
772 /*
773 * Handle special flags set during scanning.
774 */
775 if ((parser->scan_flags & HID_SCAN_FLAG_MT_WIN_8) &&
776 (hid->group == HID_GROUP_MULTITOUCH))
777 hid->group = HID_GROUP_MULTITOUCH_WIN_8;
778
779 vfree(parser);
780 return 0;
781 }
782
783 /**
784 * hid_parse_report - parse device report
785 *
786 * @device: hid device
787 * @start: report start
788 * @size: report size
789 *
790 * Allocate the device report as read by the bus driver. This function should
791 * only be called from parse() in ll drivers.
792 */
793 int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size)
794 {
795 hid->dev_rdesc = kmemdup(start, size, GFP_KERNEL);
796 if (!hid->dev_rdesc)
797 return -ENOMEM;
798 hid->dev_rsize = size;
799 return 0;
800 }
801 EXPORT_SYMBOL_GPL(hid_parse_report);
802
803 static const char * const hid_report_names[] = {
804 "HID_INPUT_REPORT",
805 "HID_OUTPUT_REPORT",
806 "HID_FEATURE_REPORT",
807 };
808 /**
809 * hid_validate_values - validate existing device report's value indexes
810 *
811 * @device: hid device
812 * @type: which report type to examine
813 * @id: which report ID to examine (0 for first)
814 * @field_index: which report field to examine
815 * @report_counts: expected number of values
816 *
817 * Validate the number of values in a given field of a given report, after
818 * parsing.
819 */
820 struct hid_report *hid_validate_values(struct hid_device *hid,
821 unsigned int type, unsigned int id,
822 unsigned int field_index,
823 unsigned int report_counts)
824 {
825 struct hid_report *report;
826
827 if (type > HID_FEATURE_REPORT) {
828 hid_err(hid, "invalid HID report type %u\n", type);
829 return NULL;
830 }
831
832 if (id >= HID_MAX_IDS) {
833 hid_err(hid, "invalid HID report id %u\n", id);
834 return NULL;
835 }
836
837 /*
838 * Explicitly not using hid_get_report() here since it depends on
839 * ->numbered being checked, which may not always be the case when
840 * drivers go to access report values.
841 */
842 report = hid->report_enum[type].report_id_hash[id];
843 if (!report) {
844 hid_err(hid, "missing %s %u\n", hid_report_names[type], id);
845 return NULL;
846 }
847 if (report->maxfield <= field_index) {
848 hid_err(hid, "not enough fields in %s %u\n",
849 hid_report_names[type], id);
850 return NULL;
851 }
852 if (report->field[field_index]->report_count < report_counts) {
853 hid_err(hid, "not enough values in %s %u field %u\n",
854 hid_report_names[type], id, field_index);
855 return NULL;
856 }
857 return report;
858 }
859 EXPORT_SYMBOL_GPL(hid_validate_values);
860
861 /**
862 * hid_open_report - open a driver-specific device report
863 *
864 * @device: hid device
865 *
866 * Parse a report description into a hid_device structure. Reports are
867 * enumerated, fields are attached to these reports.
868 * 0 returned on success, otherwise nonzero error value.
869 *
870 * This function (or the equivalent hid_parse() macro) should only be
871 * called from probe() in drivers, before starting the device.
872 */
873 int hid_open_report(struct hid_device *device)
874 {
875 struct hid_parser *parser;
876 struct hid_item item;
877 unsigned int size;
878 __u8 *start;
879 __u8 *buf;
880 __u8 *end;
881 int ret;
882 static int (*dispatch_type[])(struct hid_parser *parser,
883 struct hid_item *item) = {
884 hid_parser_main,
885 hid_parser_global,
886 hid_parser_local,
887 hid_parser_reserved
888 };
889
890 if (WARN_ON(device->status & HID_STAT_PARSED))
891 return -EBUSY;
892
893 start = device->dev_rdesc;
894 if (WARN_ON(!start))
895 return -ENODEV;
896 size = device->dev_rsize;
897
898 buf = kmemdup(start, size, GFP_KERNEL);
899 if (buf == NULL)
900 return -ENOMEM;
901
902 if (device->driver->report_fixup)
903 start = device->driver->report_fixup(device, buf, &size);
904 else
905 start = buf;
906
907 start = kmemdup(start, size, GFP_KERNEL);
908 kfree(buf);
909 if (start == NULL)
910 return -ENOMEM;
911
912 device->rdesc = start;
913 device->rsize = size;
914
915 parser = vzalloc(sizeof(struct hid_parser));
916 if (!parser) {
917 ret = -ENOMEM;
918 goto err;
919 }
920
921 parser->device = device;
922
923 end = start + size;
924
925 device->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS,
926 sizeof(struct hid_collection), GFP_KERNEL);
927 if (!device->collection) {
928 ret = -ENOMEM;
929 goto err;
930 }
931 device->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
932
933 ret = -EINVAL;
934 while ((start = fetch_item(start, end, &item)) != NULL) {
935
936 if (item.format != HID_ITEM_FORMAT_SHORT) {
937 hid_err(device, "unexpected long global item\n");
938 goto err;
939 }
940
941 if (dispatch_type[item.type](parser, &item)) {
942 hid_err(device, "item %u %u %u %u parsing failed\n",
943 item.format, (unsigned)item.size,
944 (unsigned)item.type, (unsigned)item.tag);
945 goto err;
946 }
947
948 if (start == end) {
949 if (parser->collection_stack_ptr) {
950 hid_err(device, "unbalanced collection at end of report description\n");
951 goto err;
952 }
953 if (parser->local.delimiter_depth) {
954 hid_err(device, "unbalanced delimiter at end of report description\n");
955 goto err;
956 }
957 vfree(parser);
958 device->status |= HID_STAT_PARSED;
959 return 0;
960 }
961 }
962
963 hid_err(device, "item fetching failed at offset %d\n", (int)(end - start));
964 err:
965 vfree(parser);
966 hid_close_report(device);
967 return ret;
968 }
969 EXPORT_SYMBOL_GPL(hid_open_report);
970
971 /*
972 * Convert a signed n-bit integer to signed 32-bit integer. Common
973 * cases are done through the compiler, the screwed things has to be
974 * done by hand.
975 */
976
977 static s32 snto32(__u32 value, unsigned n)
978 {
979 switch (n) {
980 case 8: return ((__s8)value);
981 case 16: return ((__s16)value);
982 case 32: return ((__s32)value);
983 }
984 return value & (1 << (n - 1)) ? value | (-1 << n) : value;
985 }
986
987 s32 hid_snto32(__u32 value, unsigned n)
988 {
989 return snto32(value, n);
990 }
991 EXPORT_SYMBOL_GPL(hid_snto32);
992
993 /*
994 * Convert a signed 32-bit integer to a signed n-bit integer.
995 */
996
997 static u32 s32ton(__s32 value, unsigned n)
998 {
999 s32 a = value >> (n - 1);
1000 if (a && a != -1)
1001 return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
1002 return value & ((1 << n) - 1);
1003 }
1004
1005 /*
1006 * Extract/implement a data field from/to a little endian report (bit array).
1007 *
1008 * Code sort-of follows HID spec:
1009 * http://www.usb.org/developers/devclass_docs/HID1_11.pdf
1010 *
1011 * While the USB HID spec allows unlimited length bit fields in "report
1012 * descriptors", most devices never use more than 16 bits.
1013 * One model of UPS is claimed to report "LINEV" as a 32-bit field.
1014 * Search linux-kernel and linux-usb-devel archives for "hid-core extract".
1015 */
1016
1017 static __u32 extract(const struct hid_device *hid, __u8 *report,
1018 unsigned offset, unsigned n)
1019 {
1020 u64 x;
1021
1022 if (n > 32)
1023 hid_warn(hid, "extract() called with n (%d) > 32! (%s)\n",
1024 n, current->comm);
1025
1026 report += offset >> 3; /* adjust byte index */
1027 offset &= 7; /* now only need bit offset into one byte */
1028 x = get_unaligned_le64(report);
1029 x = (x >> offset) & ((1ULL << n) - 1); /* extract bit field */
1030 return (u32) x;
1031 }
1032
1033 /*
1034 * "implement" : set bits in a little endian bit stream.
1035 * Same concepts as "extract" (see comments above).
1036 * The data mangled in the bit stream remains in little endian
1037 * order the whole time. It make more sense to talk about
1038 * endianness of register values by considering a register
1039 * a "cached" copy of the little endiad bit stream.
1040 */
1041 static void implement(const struct hid_device *hid, __u8 *report,
1042 unsigned offset, unsigned n, __u32 value)
1043 {
1044 u64 x;
1045 u64 m = (1ULL << n) - 1;
1046
1047 if (n > 32)
1048 hid_warn(hid, "%s() called with n (%d) > 32! (%s)\n",
1049 __func__, n, current->comm);
1050
1051 if (value > m)
1052 hid_warn(hid, "%s() called with too large value %d! (%s)\n",
1053 __func__, value, current->comm);
1054 WARN_ON(value > m);
1055 value &= m;
1056
1057 report += offset >> 3;
1058 offset &= 7;
1059
1060 x = get_unaligned_le64(report);
1061 x &= ~(m << offset);
1062 x |= ((u64)value) << offset;
1063 put_unaligned_le64(x, report);
1064 }
1065
1066 /*
1067 * Search an array for a value.
1068 */
1069
1070 static int search(__s32 *array, __s32 value, unsigned n)
1071 {
1072 while (n--) {
1073 if (*array++ == value)
1074 return 0;
1075 }
1076 return -1;
1077 }
1078
1079 /**
1080 * hid_match_report - check if driver's raw_event should be called
1081 *
1082 * @hid: hid device
1083 * @report_type: type to match against
1084 *
1085 * compare hid->driver->report_table->report_type to report->type
1086 */
1087 static int hid_match_report(struct hid_device *hid, struct hid_report *report)
1088 {
1089 const struct hid_report_id *id = hid->driver->report_table;
1090
1091 if (!id) /* NULL means all */
1092 return 1;
1093
1094 for (; id->report_type != HID_TERMINATOR; id++)
1095 if (id->report_type == HID_ANY_ID ||
1096 id->report_type == report->type)
1097 return 1;
1098 return 0;
1099 }
1100
1101 /**
1102 * hid_match_usage - check if driver's event should be called
1103 *
1104 * @hid: hid device
1105 * @usage: usage to match against
1106 *
1107 * compare hid->driver->usage_table->usage_{type,code} to
1108 * usage->usage_{type,code}
1109 */
1110 static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage)
1111 {
1112 const struct hid_usage_id *id = hid->driver->usage_table;
1113
1114 if (!id) /* NULL means all */
1115 return 1;
1116
1117 for (; id->usage_type != HID_ANY_ID - 1; id++)
1118 if ((id->usage_hid == HID_ANY_ID ||
1119 id->usage_hid == usage->hid) &&
1120 (id->usage_type == HID_ANY_ID ||
1121 id->usage_type == usage->type) &&
1122 (id->usage_code == HID_ANY_ID ||
1123 id->usage_code == usage->code))
1124 return 1;
1125 return 0;
1126 }
1127
1128 static void hid_process_event(struct hid_device *hid, struct hid_field *field,
1129 struct hid_usage *usage, __s32 value, int interrupt)
1130 {
1131 struct hid_driver *hdrv = hid->driver;
1132 int ret;
1133
1134 if (!list_empty(&hid->debug_list))
1135 hid_dump_input(hid, usage, value);
1136
1137 if (hdrv && hdrv->event && hid_match_usage(hid, usage)) {
1138 ret = hdrv->event(hid, field, usage, value);
1139 if (ret != 0) {
1140 if (ret < 0)
1141 hid_err(hid, "%s's event failed with %d\n",
1142 hdrv->name, ret);
1143 return;
1144 }
1145 }
1146
1147 if (hid->claimed & HID_CLAIMED_INPUT)
1148 hidinput_hid_event(hid, field, usage, value);
1149 if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event)
1150 hid->hiddev_hid_event(hid, field, usage, value);
1151 }
1152
1153 /*
1154 * Analyse a received field, and fetch the data from it. The field
1155 * content is stored for next report processing (we do differential
1156 * reporting to the layer).
1157 */
1158
1159 static void hid_input_field(struct hid_device *hid, struct hid_field *field,
1160 __u8 *data, int interrupt)
1161 {
1162 unsigned n;
1163 unsigned count = field->report_count;
1164 unsigned offset = field->report_offset;
1165 unsigned size = field->report_size;
1166 __s32 min = field->logical_minimum;
1167 __s32 max = field->logical_maximum;
1168 __s32 *value;
1169
1170 value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC);
1171 if (!value)
1172 return;
1173
1174 for (n = 0; n < count; n++) {
1175
1176 value[n] = min < 0 ?
1177 snto32(extract(hid, data, offset + n * size, size),
1178 size) :
1179 extract(hid, data, offset + n * size, size);
1180
1181 /* Ignore report if ErrorRollOver */
1182 if (!(field->flags & HID_MAIN_ITEM_VARIABLE) &&
1183 value[n] >= min && value[n] <= max &&
1184 field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
1185 goto exit;
1186 }
1187
1188 for (n = 0; n < count; n++) {
1189
1190 if (HID_MAIN_ITEM_VARIABLE & field->flags) {
1191 hid_process_event(hid, field, &field->usage[n], value[n], interrupt);
1192 continue;
1193 }
1194
1195 if (field->value[n] >= min && field->value[n] <= max
1196 && field->usage[field->value[n] - min].hid
1197 && search(value, field->value[n], count))
1198 hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt);
1199
1200 if (value[n] >= min && value[n] <= max
1201 && field->usage[value[n] - min].hid
1202 && search(field->value, value[n], count))
1203 hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt);
1204 }
1205
1206 memcpy(field->value, value, count * sizeof(__s32));
1207 exit:
1208 kfree(value);
1209 }
1210
1211 /*
1212 * Output the field into the report.
1213 */
1214
1215 static void hid_output_field(const struct hid_device *hid,
1216 struct hid_field *field, __u8 *data)
1217 {
1218 unsigned count = field->report_count;
1219 unsigned offset = field->report_offset;
1220 unsigned size = field->report_size;
1221 unsigned n;
1222
1223 for (n = 0; n < count; n++) {
1224 if (field->logical_minimum < 0) /* signed values */
1225 implement(hid, data, offset + n * size, size,
1226 s32ton(field->value[n], size));
1227 else /* unsigned values */
1228 implement(hid, data, offset + n * size, size,
1229 field->value[n]);
1230 }
1231 }
1232
1233 /*
1234 * Create a report. 'data' has to be allocated using
1235 * hid_alloc_report_buf() so that it has proper size.
1236 */
1237
1238 void hid_output_report(struct hid_report *report, __u8 *data)
1239 {
1240 unsigned n;
1241
1242 if (report->id > 0)
1243 *data++ = report->id;
1244
1245 memset(data, 0, ((report->size - 1) >> 3) + 1);
1246 for (n = 0; n < report->maxfield; n++)
1247 hid_output_field(report->device, report->field[n], data);
1248 }
1249 EXPORT_SYMBOL_GPL(hid_output_report);
1250
1251 /*
1252 * Allocator for buffer that is going to be passed to hid_output_report()
1253 */
1254 u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags)
1255 {
1256 /*
1257 * 7 extra bytes are necessary to achieve proper functionality
1258 * of implement() working on 8 byte chunks
1259 */
1260
1261 int len = ((report->size - 1) >> 3) + 1 + (report->id > 0) + 7;
1262
1263 return kmalloc(len, flags);
1264 }
1265 EXPORT_SYMBOL_GPL(hid_alloc_report_buf);
1266
1267 /*
1268 * Set a field value. The report this field belongs to has to be
1269 * created and transferred to the device, to set this value in the
1270 * device.
1271 */
1272
1273 int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
1274 {
1275 unsigned size;
1276
1277 if (!field)
1278 return -1;
1279
1280 size = field->report_size;
1281
1282 hid_dump_input(field->report->device, field->usage + offset, value);
1283
1284 if (offset >= field->report_count) {
1285 hid_err(field->report->device, "offset (%d) exceeds report_count (%d)\n",
1286 offset, field->report_count);
1287 return -1;
1288 }
1289 if (field->logical_minimum < 0) {
1290 if (value != snto32(s32ton(value, size), size)) {
1291 hid_err(field->report->device, "value %d is out of range\n", value);
1292 return -1;
1293 }
1294 }
1295 field->value[offset] = value;
1296 return 0;
1297 }
1298 EXPORT_SYMBOL_GPL(hid_set_field);
1299
1300 static struct hid_report *hid_get_report(struct hid_report_enum *report_enum,
1301 const u8 *data)
1302 {
1303 struct hid_report *report;
1304 unsigned int n = 0; /* Normally report number is 0 */
1305
1306 /* Device uses numbered reports, data[0] is report number */
1307 if (report_enum->numbered)
1308 n = *data;
1309
1310 report = report_enum->report_id_hash[n];
1311 if (report == NULL)
1312 dbg_hid("undefined report_id %u received\n", n);
1313
1314 return report;
1315 }
1316
1317 int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
1318 int interrupt)
1319 {
1320 struct hid_report_enum *report_enum = hid->report_enum + type;
1321 struct hid_report *report;
1322 struct hid_driver *hdrv;
1323 unsigned int a;
1324 int rsize, csize = size;
1325 u8 *cdata = data;
1326 int ret = 0;
1327
1328 report = hid_get_report(report_enum, data);
1329 if (!report)
1330 goto out;
1331
1332 if (report_enum->numbered) {
1333 cdata++;
1334 csize--;
1335 }
1336
1337 rsize = ((report->size - 1) >> 3) + 1;
1338
1339 if (rsize > HID_MAX_BUFFER_SIZE)
1340 rsize = HID_MAX_BUFFER_SIZE;
1341
1342 if (csize < rsize) {
1343 dbg_hid("report %d is too short, (%d < %d)\n", report->id,
1344 csize, rsize);
1345 memset(cdata + csize, 0, rsize - csize);
1346 }
1347
1348 if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event)
1349 hid->hiddev_report_event(hid, report);
1350 if (hid->claimed & HID_CLAIMED_HIDRAW) {
1351 ret = hidraw_report_event(hid, data, size);
1352 if (ret)
1353 goto out;
1354 }
1355
1356 if (hid->claimed != HID_CLAIMED_HIDRAW && report->maxfield) {
1357 for (a = 0; a < report->maxfield; a++)
1358 hid_input_field(hid, report->field[a], cdata, interrupt);
1359 hdrv = hid->driver;
1360 if (hdrv && hdrv->report)
1361 hdrv->report(hid, report);
1362 }
1363
1364 if (hid->claimed & HID_CLAIMED_INPUT)
1365 hidinput_report_event(hid, report);
1366 out:
1367 return ret;
1368 }
1369 EXPORT_SYMBOL_GPL(hid_report_raw_event);
1370
1371 /**
1372 * hid_input_report - report data from lower layer (usb, bt...)
1373 *
1374 * @hid: hid device
1375 * @type: HID report type (HID_*_REPORT)
1376 * @data: report contents
1377 * @size: size of data parameter
1378 * @interrupt: distinguish between interrupt and control transfers
1379 *
1380 * This is data entry for lower layers.
1381 */
1382 int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt)
1383 {
1384 struct hid_report_enum *report_enum;
1385 struct hid_driver *hdrv;
1386 struct hid_report *report;
1387 int ret = 0;
1388
1389 if (!hid)
1390 return -ENODEV;
1391
1392 if (down_trylock(&hid->driver_input_lock))
1393 return -EBUSY;
1394
1395 if (!hid->driver) {
1396 ret = -ENODEV;
1397 goto unlock;
1398 }
1399 report_enum = hid->report_enum + type;
1400 hdrv = hid->driver;
1401
1402 if (!size) {
1403 dbg_hid("empty report\n");
1404 ret = -1;
1405 goto unlock;
1406 }
1407
1408 /* Avoid unnecessary overhead if debugfs is disabled */
1409 if (!list_empty(&hid->debug_list))
1410 hid_dump_report(hid, type, data, size);
1411
1412 report = hid_get_report(report_enum, data);
1413
1414 if (!report) {
1415 ret = -1;
1416 goto unlock;
1417 }
1418
1419 if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) {
1420 ret = hdrv->raw_event(hid, report, data, size);
1421 if (ret < 0)
1422 goto unlock;
1423 }
1424
1425 ret = hid_report_raw_event(hid, type, data, size, interrupt);
1426
1427 unlock:
1428 up(&hid->driver_input_lock);
1429 return ret;
1430 }
1431 EXPORT_SYMBOL_GPL(hid_input_report);
1432
1433 static bool hid_match_one_id(struct hid_device *hdev,
1434 const struct hid_device_id *id)
1435 {
1436 return (id->bus == HID_BUS_ANY || id->bus == hdev->bus) &&
1437 (id->group == HID_GROUP_ANY || id->group == hdev->group) &&
1438 (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) &&
1439 (id->product == HID_ANY_ID || id->product == hdev->product);
1440 }
1441
1442 const struct hid_device_id *hid_match_id(struct hid_device *hdev,
1443 const struct hid_device_id *id)
1444 {
1445 for (; id->bus; id++)
1446 if (hid_match_one_id(hdev, id))
1447 return id;
1448
1449 return NULL;
1450 }
1451
1452 static const struct hid_device_id hid_hiddev_list[] = {
1453 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) },
1454 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) },
1455 { }
1456 };
1457
1458 static bool hid_hiddev(struct hid_device *hdev)
1459 {
1460 return !!hid_match_id(hdev, hid_hiddev_list);
1461 }
1462
1463
1464 static ssize_t
1465 read_report_descriptor(struct file *filp, struct kobject *kobj,
1466 struct bin_attribute *attr,
1467 char *buf, loff_t off, size_t count)
1468 {
1469 struct device *dev = container_of(kobj, struct device, kobj);
1470 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1471
1472 if (off >= hdev->rsize)
1473 return 0;
1474
1475 if (off + count > hdev->rsize)
1476 count = hdev->rsize - off;
1477
1478 memcpy(buf, hdev->rdesc + off, count);
1479
1480 return count;
1481 }
1482
1483 static struct bin_attribute dev_bin_attr_report_desc = {
1484 .attr = { .name = "report_descriptor", .mode = 0444 },
1485 .read = read_report_descriptor,
1486 .size = HID_MAX_DESCRIPTOR_SIZE,
1487 };
1488
1489 int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
1490 {
1491 static const char *types[] = { "Device", "Pointer", "Mouse", "Device",
1492 "Joystick", "Gamepad", "Keyboard", "Keypad",
1493 "Multi-Axis Controller"
1494 };
1495 const char *type, *bus;
1496 char buf[64];
1497 unsigned int i;
1498 int len;
1499 int ret;
1500
1501 if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE)
1502 connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV);
1503 if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE)
1504 connect_mask |= HID_CONNECT_HIDINPUT_FORCE;
1505 if (hdev->bus != BUS_USB)
1506 connect_mask &= ~HID_CONNECT_HIDDEV;
1507 if (hid_hiddev(hdev))
1508 connect_mask |= HID_CONNECT_HIDDEV_FORCE;
1509
1510 if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,
1511 connect_mask & HID_CONNECT_HIDINPUT_FORCE))
1512 hdev->claimed |= HID_CLAIMED_INPUT;
1513
1514 if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect &&
1515 !hdev->hiddev_connect(hdev,
1516 connect_mask & HID_CONNECT_HIDDEV_FORCE))
1517 hdev->claimed |= HID_CLAIMED_HIDDEV;
1518 if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev))
1519 hdev->claimed |= HID_CLAIMED_HIDRAW;
1520
1521 /* Drivers with the ->raw_event callback set are not required to connect
1522 * to any other listener. */
1523 if (!hdev->claimed && !hdev->driver->raw_event) {
1524 hid_err(hdev, "device has no listeners, quitting\n");
1525 return -ENODEV;
1526 }
1527
1528 if ((hdev->claimed & HID_CLAIMED_INPUT) &&
1529 (connect_mask & HID_CONNECT_FF) && hdev->ff_init)
1530 hdev->ff_init(hdev);
1531
1532 len = 0;
1533 if (hdev->claimed & HID_CLAIMED_INPUT)
1534 len += sprintf(buf + len, "input");
1535 if (hdev->claimed & HID_CLAIMED_HIDDEV)
1536 len += sprintf(buf + len, "%shiddev%d", len ? "," : "",
1537 hdev->minor);
1538 if (hdev->claimed & HID_CLAIMED_HIDRAW)
1539 len += sprintf(buf + len, "%shidraw%d", len ? "," : "",
1540 ((struct hidraw *)hdev->hidraw)->minor);
1541
1542 type = "Device";
1543 for (i = 0; i < hdev->maxcollection; i++) {
1544 struct hid_collection *col = &hdev->collection[i];
1545 if (col->type == HID_COLLECTION_APPLICATION &&
1546 (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
1547 (col->usage & 0xffff) < ARRAY_SIZE(types)) {
1548 type = types[col->usage & 0xffff];
1549 break;
1550 }
1551 }
1552
1553 switch (hdev->bus) {
1554 case BUS_USB:
1555 bus = "USB";
1556 break;
1557 case BUS_BLUETOOTH:
1558 bus = "BLUETOOTH";
1559 break;
1560 default:
1561 bus = "<UNKNOWN>";
1562 }
1563
1564 ret = device_create_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1565 if (ret)
1566 hid_warn(hdev,
1567 "can't create sysfs report descriptor attribute err: %d\n", ret);
1568
1569 hid_info(hdev, "%s: %s HID v%x.%02x %s [%s] on %s\n",
1570 buf, bus, hdev->version >> 8, hdev->version & 0xff,
1571 type, hdev->name, hdev->phys);
1572
1573 return 0;
1574 }
1575 EXPORT_SYMBOL_GPL(hid_connect);
1576
1577 void hid_disconnect(struct hid_device *hdev)
1578 {
1579 device_remove_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1580 if (hdev->claimed & HID_CLAIMED_INPUT)
1581 hidinput_disconnect(hdev);
1582 if (hdev->claimed & HID_CLAIMED_HIDDEV)
1583 hdev->hiddev_disconnect(hdev);
1584 if (hdev->claimed & HID_CLAIMED_HIDRAW)
1585 hidraw_disconnect(hdev);
1586 }
1587 EXPORT_SYMBOL_GPL(hid_disconnect);
1588
1589 /*
1590 * A list of devices for which there is a specialized driver on HID bus.
1591 *
1592 * Please note that for multitouch devices (driven by hid-multitouch driver),
1593 * there is a proper autodetection and autoloading in place (based on presence
1594 * of HID_DG_CONTACTID), so those devices don't need to be added to this list,
1595 * as we are doing the right thing in hid_scan_usage().
1596 *
1597 * Autodetection for (USB) HID sensor hubs exists too. If a collection of type
1598 * physical is found inside a usage page of type sensor, hid-sensor-hub will be
1599 * used as a driver. See hid_scan_report().
1600 */
1601 static const struct hid_device_id hid_have_special_driver[] = {
1602 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
1603 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
1604 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) },
1605 { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) },
1606 { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0xf705) },
1607 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
1608 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
1609 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) },
1610 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1611 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1612 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1613 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1614 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1615 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1616 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1617 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1618 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1619 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1620 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1621 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) },
1622 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) },
1623 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) },
1624 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) },
1625 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) },
1626 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) },
1627 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1628 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1629 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
1630 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL) },
1631 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL2) },
1632 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL3) },
1633 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
1634 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL5) },
1635 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) },
1636 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) },
1637 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) },
1638 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1639 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1640 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1641 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1642 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1643 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
1644 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1645 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1646 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
1647 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
1648 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
1649 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
1650 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
1651 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
1652 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
1653 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
1654 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
1655 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
1656 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
1657 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
1658 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
1659 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ANSI) },
1660 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ISO) },
1661 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_JIS) },
1662 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
1663 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
1664 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
1665 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
1666 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
1667 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
1668 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
1669 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
1670 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
1671 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) },
1672 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) },
1673 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) },
1674 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI) },
1675 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO) },
1676 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS) },
1677 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) },
1678 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) },
1679 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) },
1680 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI) },
1681 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO) },
1682 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1683 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1684 { HID_USB_DEVICE(USB_VENDOR_ID_AUREAL, USB_DEVICE_ID_AUREAL_W01RN) },
1685 { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
1686 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
1687 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
1688 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
1689 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
1690 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
1691 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS) },
1692 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) },
1693 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_AK1D) },
1694 { HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) },
1695 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) },
1696 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) },
1697 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) },
1698 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_4) },
1699 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
1700 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
1701 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011) },
1702 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
1703 { HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0009) },
1704 { HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0030) },
1705 { HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) },
1706 { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
1707 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) },
1708 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) },
1709 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) },
1710 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) },
1711 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
1712 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
1713 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
1714 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) },
1715 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) },
1716 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A) },
1717 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067) },
1718 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A072) },
1719 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081) },
1720 { HID_USB_DEVICE(USB_VENDOR_ID_HUION, USB_DEVICE_ID_HUION_580) },
1721 { HID_USB_DEVICE(USB_VENDOR_ID_JESS2, USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD) },
1722 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ION, USB_DEVICE_ID_ICADE) },
1723 { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
1724 { HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) },
1725 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GILA_GAMING_MOUSE) },
1726 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_MANTICORE) },
1727 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GX_IMPERATOR) },
1728 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
1729 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_I405X) },
1730 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X) },
1731 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X) },
1732 { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
1733 { HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) },
1734 #if IS_ENABLED(CONFIG_HID_LENOVO_TPKBD)
1735 { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) },
1736 #endif
1737 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
1738 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
1739 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) },
1740 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) },
1741 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_PS3) },
1742 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) },
1743 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) },
1744 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) },
1745 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) },
1746 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) },
1747 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) },
1748 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) },
1749 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) },
1750 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
1751 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },
1752 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
1753 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) },
1754 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
1755 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) },
1756 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
1757 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
1758 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_VIBRATION_WHEEL) },
1759 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFP_WHEEL) },
1760 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFGT_WHEEL) },
1761 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
1762 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G27_WHEEL) },
1763 #if IS_ENABLED(CONFIG_HID_LOGITECH_DJ)
1764 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER) },
1765 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2) },
1766 #endif
1767 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) },
1768 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) },
1769 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) },
1770 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) },
1771 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
1772 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
1773 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500) },
1774 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) },
1775 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) },
1776 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K_JP) },
1777 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) },
1778 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) },
1779 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K) },
1780 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
1781 { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
1782 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
1783 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) },
1784 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) },
1785 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) },
1786 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) },
1787 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) },
1788 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) },
1789 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) },
1790 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) },
1791 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) },
1792 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) },
1793 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) },
1794 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) },
1795 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) },
1796 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) },
1797 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) },
1798 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) },
1799 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) },
1800 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) },
1801 { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) },
1802 { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
1803 { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
1804 { HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_KEYBOARD) },
1805 #if IS_ENABLED(CONFIG_HID_ROCCAT)
1806 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) },
1807 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
1808 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKUFX) },
1809 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
1810 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
1811 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE) },
1812 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE_OPTICAL) },
1813 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEXTD) },
1814 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
1815 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_LUA) },
1816 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
1817 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) },
1818 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK) },
1819 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK_GLOW) },
1820 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK_PRO) },
1821 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_SAVU) },
1822 #endif
1823 { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000) },
1824 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
1825 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
1826 { HID_USB_DEVICE(USB_VENDOR_ID_SIS2_TOUCH, USB_DEVICE_ID_SIS9200_TOUCH) },
1827 { HID_USB_DEVICE(USB_VENDOR_ID_SIS2_TOUCH, USB_DEVICE_ID_SIS817_TOUCH) },
1828 { HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
1829 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_BUZZ_CONTROLLER) },
1830 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_WIRELESS_BUZZ_CONTROLLER) },
1831 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_BDREMOTE) },
1832 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1833 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER) },
1834 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1835 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
1836 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGP_MOUSE) },
1837 { HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, USB_DEVICE_ID_STEELSERIES_SRWS1) },
1838 { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
1839 { HID_USB_DEVICE(USB_VENDOR_ID_THINGM, USB_DEVICE_ID_BLINK1) },
1840 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
1841 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
1842 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) },
1843 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) },
1844 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
1845 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) },
1846 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
1847 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) },
1848 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) },
1849 { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) },
1850 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
1851 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
1852 { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
1853 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
1854 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
1855 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
1856 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
1857 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP1062) },
1858 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_WIRELESS_TABLET_TWHL850) },
1859 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_TWHA60) },
1860 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
1861 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SUPER_JOY_BOX_3) },
1862 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD) },
1863 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO) },
1864 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO) },
1865 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO) },
1866 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
1867 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) },
1868 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
1869 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
1870 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_Q_PAD) },
1871 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_PID_0038) },
1872 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
1873 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
1874 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET) },
1875 { HID_USB_DEVICE(USB_VENDOR_ID_X_TENSIONS, USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE) },
1876 { HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_XIN_MO_DUAL_ARCADE) },
1877 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
1878 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
1879 { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
1880
1881 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
1882 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) },
1883 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE2) },
1884 { }
1885 };
1886
1887 struct hid_dynid {
1888 struct list_head list;
1889 struct hid_device_id id;
1890 };
1891
1892 /**
1893 * store_new_id - add a new HID device ID to this driver and re-probe devices
1894 * @driver: target device driver
1895 * @buf: buffer for scanning device ID data
1896 * @count: input size
1897 *
1898 * Adds a new dynamic hid device ID to this driver,
1899 * and causes the driver to probe for all devices again.
1900 */
1901 static ssize_t store_new_id(struct device_driver *drv, const char *buf,
1902 size_t count)
1903 {
1904 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1905 struct hid_dynid *dynid;
1906 __u32 bus, vendor, product;
1907 unsigned long driver_data = 0;
1908 int ret;
1909
1910 ret = sscanf(buf, "%x %x %x %lx",
1911 &bus, &vendor, &product, &driver_data);
1912 if (ret < 3)
1913 return -EINVAL;
1914
1915 dynid = kzalloc(sizeof(*dynid), GFP_KERNEL);
1916 if (!dynid)
1917 return -ENOMEM;
1918
1919 dynid->id.bus = bus;
1920 dynid->id.group = HID_GROUP_ANY;
1921 dynid->id.vendor = vendor;
1922 dynid->id.product = product;
1923 dynid->id.driver_data = driver_data;
1924
1925 spin_lock(&hdrv->dyn_lock);
1926 list_add_tail(&dynid->list, &hdrv->dyn_list);
1927 spin_unlock(&hdrv->dyn_lock);
1928
1929 ret = driver_attach(&hdrv->driver);
1930
1931 return ret ? : count;
1932 }
1933 static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
1934
1935 static void hid_free_dynids(struct hid_driver *hdrv)
1936 {
1937 struct hid_dynid *dynid, *n;
1938
1939 spin_lock(&hdrv->dyn_lock);
1940 list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) {
1941 list_del(&dynid->list);
1942 kfree(dynid);
1943 }
1944 spin_unlock(&hdrv->dyn_lock);
1945 }
1946
1947 static const struct hid_device_id *hid_match_device(struct hid_device *hdev,
1948 struct hid_driver *hdrv)
1949 {
1950 struct hid_dynid *dynid;
1951
1952 spin_lock(&hdrv->dyn_lock);
1953 list_for_each_entry(dynid, &hdrv->dyn_list, list) {
1954 if (hid_match_one_id(hdev, &dynid->id)) {
1955 spin_unlock(&hdrv->dyn_lock);
1956 return &dynid->id;
1957 }
1958 }
1959 spin_unlock(&hdrv->dyn_lock);
1960
1961 return hid_match_id(hdev, hdrv->id_table);
1962 }
1963
1964 static int hid_bus_match(struct device *dev, struct device_driver *drv)
1965 {
1966 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1967 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1968
1969 return hid_match_device(hdev, hdrv) != NULL;
1970 }
1971
1972 static int hid_device_probe(struct device *dev)
1973 {
1974 struct hid_driver *hdrv = container_of(dev->driver,
1975 struct hid_driver, driver);
1976 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1977 const struct hid_device_id *id;
1978 int ret = 0;
1979
1980 if (down_interruptible(&hdev->driver_lock))
1981 return -EINTR;
1982 if (down_interruptible(&hdev->driver_input_lock)) {
1983 ret = -EINTR;
1984 goto unlock_driver_lock;
1985 }
1986 hdev->io_started = false;
1987
1988 if (!hdev->driver) {
1989 id = hid_match_device(hdev, hdrv);
1990 if (id == NULL) {
1991 ret = -ENODEV;
1992 goto unlock;
1993 }
1994
1995 hdev->driver = hdrv;
1996 if (hdrv->probe) {
1997 ret = hdrv->probe(hdev, id);
1998 } else { /* default probe */
1999 ret = hid_open_report(hdev);
2000 if (!ret)
2001 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
2002 }
2003 if (ret) {
2004 hid_close_report(hdev);
2005 hdev->driver = NULL;
2006 }
2007 }
2008 unlock:
2009 if (!hdev->io_started)
2010 up(&hdev->driver_input_lock);
2011 unlock_driver_lock:
2012 up(&hdev->driver_lock);
2013 return ret;
2014 }
2015
2016 static int hid_device_remove(struct device *dev)
2017 {
2018 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
2019 struct hid_driver *hdrv;
2020 int ret = 0;
2021
2022 if (down_interruptible(&hdev->driver_lock))
2023 return -EINTR;
2024 if (down_interruptible(&hdev->driver_input_lock)) {
2025 ret = -EINTR;
2026 goto unlock_driver_lock;
2027 }
2028 hdev->io_started = false;
2029
2030 hdrv = hdev->driver;
2031 if (hdrv) {
2032 if (hdrv->remove)
2033 hdrv->remove(hdev);
2034 else /* default remove */
2035 hid_hw_stop(hdev);
2036 hid_close_report(hdev);
2037 hdev->driver = NULL;
2038 }
2039
2040 if (!hdev->io_started)
2041 up(&hdev->driver_input_lock);
2042 unlock_driver_lock:
2043 up(&hdev->driver_lock);
2044 return ret;
2045 }
2046
2047 static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
2048 char *buf)
2049 {
2050 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
2051 int len;
2052
2053 len = snprintf(buf, PAGE_SIZE, "hid:b%04Xg%04Xv%08Xp%08X\n",
2054 hdev->bus, hdev->group, hdev->vendor, hdev->product);
2055
2056 return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
2057 }
2058 static DEVICE_ATTR_RO(modalias);
2059
2060 static struct attribute *hid_dev_attrs[] = {
2061 &dev_attr_modalias.attr,
2062 NULL,
2063 };
2064 ATTRIBUTE_GROUPS(hid_dev);
2065
2066 static int hid_uevent(struct device *dev, struct kobj_uevent_env *env)
2067 {
2068 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
2069
2070 if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X",
2071 hdev->bus, hdev->vendor, hdev->product))
2072 return -ENOMEM;
2073
2074 if (add_uevent_var(env, "HID_NAME=%s", hdev->name))
2075 return -ENOMEM;
2076
2077 if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys))
2078 return -ENOMEM;
2079
2080 if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq))
2081 return -ENOMEM;
2082
2083 if (add_uevent_var(env, "MODALIAS=hid:b%04Xg%04Xv%08Xp%08X",
2084 hdev->bus, hdev->group, hdev->vendor, hdev->product))
2085 return -ENOMEM;
2086
2087 return 0;
2088 }
2089
2090 static struct bus_type hid_bus_type = {
2091 .name = "hid",
2092 .dev_groups = hid_dev_groups,
2093 .match = hid_bus_match,
2094 .probe = hid_device_probe,
2095 .remove = hid_device_remove,
2096 .uevent = hid_uevent,
2097 };
2098
2099 /* a list of devices that shouldn't be handled by HID core at all */
2100 static const struct hid_device_id hid_ignore_list[] = {
2101 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) },
2102 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) },
2103 { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) },
2104 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) },
2105 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) },
2106 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) },
2107 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) },
2108 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) },
2109 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) },
2110 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) },
2111 { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) },
2112 { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) },
2113 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)},
2114 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)},
2115 { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) },
2116 { HID_USB_DEVICE(USB_VENDOR_ID_AXENTIA, USB_DEVICE_ID_AXENTIA_FM_RADIO) },
2117 { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) },
2118 { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) },
2119 { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) },
2120 { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) },
2121 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) },
2122 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) },
2123 { HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) },
2124 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) },
2125 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
2126 { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x0004) },
2127 { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x000a) },
2128 { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
2129 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
2130 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
2131 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) },
2132 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) },
2133 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) },
2134 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) },
2135 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) },
2136 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) },
2137 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) },
2138 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) },
2139 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) },
2140 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) },
2141 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) },
2142 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) },
2143 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) },
2144 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) },
2145 { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) },
2146 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) },
2147 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) },
2148 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_RADIOSHARK) },
2149 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) },
2150 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) },
2151 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) },
2152 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) },
2153 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) },
2154 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) },
2155 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) },
2156 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) },
2157 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) },
2158 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) },
2159 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) },
2160 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) },
2161 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) },
2162 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) },
2163 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) },
2164 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) },
2165 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) },
2166 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) },
2167 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) },
2168 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) },
2169 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) },
2170 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) },
2171 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) },
2172 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) },
2173 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) },
2174 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) },
2175 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) },
2176 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) },
2177 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) },
2178 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) },
2179 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) },
2180 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) },
2181 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) },
2182 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) },
2183 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) },
2184 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) },
2185 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) },
2186 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) },
2187 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) },
2188 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) },
2189 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) },
2190 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) },
2191 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) },
2192 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) },
2193 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) },
2194 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) },
2195 { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) },
2196 { HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_SPEAK_410) },
2197 { HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_SPEAK_510) },
2198 { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) },
2199 { HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) },
2200 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) },
2201 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) },
2202 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) },
2203 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY2) },
2204 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) },
2205 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY2) },
2206 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) },
2207 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY2) },
2208 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYVOLTAGE) },
2209 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYCURRENT) },
2210 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTIME) },
2211 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTEMPERATURE) },
2212 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYPH) },
2213 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) },
2214 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) },
2215 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) },
2216 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIC) },
2217 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIB) },
2218 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY) },
2219 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) },
2220 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) },
2221 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOTOR) },
2222 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) },
2223 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) },
2224 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) },
2225 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) },
2226 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) },
2227 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER) },
2228 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER2) },
2229 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_ABSESP) },
2230 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_AUTODATABUS) },
2231 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MCT) },
2232 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HYBRID) },
2233 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HEATCONTROL) },
2234 { HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_BEATPAD) },
2235 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) },
2236 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) },
2237 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) },
2238 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) },
2239 { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) },
2240 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) },
2241 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) },
2242 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) },
2243 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) },
2244 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) },
2245 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) },
2246 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) },
2247 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) },
2248 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) },
2249 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) },
2250 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) },
2251 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) },
2252 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) },
2253 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
2254 { HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
2255 { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
2256 #if defined(CONFIG_MOUSE_SYNAPTICS_USB) || defined(CONFIG_MOUSE_SYNAPTICS_USB_MODULE)
2257 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_TP) },
2258 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_INT_TP) },
2259 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_CPAD) },
2260 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_STICK) },
2261 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WP) },
2262 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_COMP_TP) },
2263 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WTP) },
2264 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_DPAD) },
2265 #endif
2266 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) },
2267 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
2268 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },
2269 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) },
2270 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) },
2271 { HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) },
2272 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) },
2273 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) },
2274 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) },
2275 { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) },
2276 { }
2277 };
2278
2279 /**
2280 * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer
2281 *
2282 * There are composite devices for which we want to ignore only a certain
2283 * interface. This is a list of devices for which only the mouse interface will
2284 * be ignored. This allows a dedicated driver to take care of the interface.
2285 */
2286 static const struct hid_device_id hid_mouse_ignore_list[] = {
2287 /* appletouch driver */
2288 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
2289 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
2290 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
2291 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
2292 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
2293 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
2294 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
2295 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
2296 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
2297 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
2298 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
2299 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
2300 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
2301 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
2302 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
2303 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
2304 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
2305 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
2306 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
2307 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
2308 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
2309 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
2310 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
2311 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
2312 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
2313 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
2314 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
2315 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
2316 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
2317 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
2318 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
2319 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
2320 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
2321 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
2322 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
2323 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
2324 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
2325 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
2326 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
2327 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
2328 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
2329 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
2330 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
2331 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
2332 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) },
2333 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) },
2334 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) },
2335 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI) },
2336 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO) },
2337 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS) },
2338 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
2339 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
2340 { }
2341 };
2342
2343 bool hid_ignore(struct hid_device *hdev)
2344 {
2345 if (hdev->quirks & HID_QUIRK_NO_IGNORE)
2346 return false;
2347 if (hdev->quirks & HID_QUIRK_IGNORE)
2348 return true;
2349
2350 switch (hdev->vendor) {
2351 case USB_VENDOR_ID_CODEMERCS:
2352 /* ignore all Code Mercenaries IOWarrior devices */
2353 if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST &&
2354 hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST)
2355 return true;
2356 break;
2357 case USB_VENDOR_ID_LOGITECH:
2358 if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST &&
2359 hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST)
2360 return true;
2361 /*
2362 * The Keene FM transmitter USB device has the same USB ID as
2363 * the Logitech AudioHub Speaker, but it should ignore the hid.
2364 * Check if the name is that of the Keene device.
2365 * For reference: the name of the AudioHub is
2366 * "HOLTEK AudioHub Speaker".
2367 */
2368 if (hdev->product == USB_DEVICE_ID_LOGITECH_AUDIOHUB &&
2369 !strcmp(hdev->name, "HOLTEK B-LINK USB Audio "))
2370 return true;
2371 break;
2372 case USB_VENDOR_ID_SOUNDGRAPH:
2373 if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST &&
2374 hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST)
2375 return true;
2376 break;
2377 case USB_VENDOR_ID_HANWANG:
2378 if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST &&
2379 hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST)
2380 return true;
2381 break;
2382 case USB_VENDOR_ID_JESS:
2383 if (hdev->product == USB_DEVICE_ID_JESS_YUREX &&
2384 hdev->type == HID_TYPE_USBNONE)
2385 return true;
2386 break;
2387 case USB_VENDOR_ID_VELLEMAN:
2388 /* These are not HID devices. They are handled by comedi. */
2389 if ((hdev->product >= USB_DEVICE_ID_VELLEMAN_K8055_FIRST &&
2390 hdev->product <= USB_DEVICE_ID_VELLEMAN_K8055_LAST) ||
2391 (hdev->product >= USB_DEVICE_ID_VELLEMAN_K8061_FIRST &&
2392 hdev->product <= USB_DEVICE_ID_VELLEMAN_K8061_LAST))
2393 return true;
2394 break;
2395 case USB_VENDOR_ID_ATMEL_V_USB:
2396 /* Masterkit MA901 usb radio based on Atmel tiny85 chip and
2397 * it has the same USB ID as many Atmel V-USB devices. This
2398 * usb radio is handled by radio-ma901.c driver so we want
2399 * ignore the hid. Check the name, bus, product and ignore
2400 * if we have MA901 usb radio.
2401 */
2402 if (hdev->product == USB_DEVICE_ID_ATMEL_V_USB &&
2403 hdev->bus == BUS_USB &&
2404 strncmp(hdev->name, "www.masterkit.ru MA901", 22) == 0)
2405 return true;
2406 break;
2407 }
2408
2409 if (hdev->type == HID_TYPE_USBMOUSE &&
2410 hid_match_id(hdev, hid_mouse_ignore_list))
2411 return true;
2412
2413 return !!hid_match_id(hdev, hid_ignore_list);
2414 }
2415 EXPORT_SYMBOL_GPL(hid_ignore);
2416
2417 int hid_add_device(struct hid_device *hdev)
2418 {
2419 static atomic_t id = ATOMIC_INIT(0);
2420 int ret;
2421
2422 if (WARN_ON(hdev->status & HID_STAT_ADDED))
2423 return -EBUSY;
2424
2425 /* we need to kill them here, otherwise they will stay allocated to
2426 * wait for coming driver */
2427 if (hid_ignore(hdev))
2428 return -ENODEV;
2429
2430 /*
2431 * Read the device report descriptor once and use as template
2432 * for the driver-specific modifications.
2433 */
2434 ret = hdev->ll_driver->parse(hdev);
2435 if (ret)
2436 return ret;
2437 if (!hdev->dev_rdesc)
2438 return -ENODEV;
2439
2440 /*
2441 * Scan generic devices for group information
2442 */
2443 if (hid_ignore_special_drivers ||
2444 !hid_match_id(hdev, hid_have_special_driver)) {
2445 ret = hid_scan_report(hdev);
2446 if (ret)
2447 hid_warn(hdev, "bad device descriptor (%d)\n", ret);
2448 }
2449
2450 /* XXX hack, any other cleaner solution after the driver core
2451 * is converted to allow more than 20 bytes as the device name? */
2452 dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
2453 hdev->vendor, hdev->product, atomic_inc_return(&id));
2454
2455 hid_debug_register(hdev, dev_name(&hdev->dev));
2456 ret = device_add(&hdev->dev);
2457 if (!ret)
2458 hdev->status |= HID_STAT_ADDED;
2459 else
2460 hid_debug_unregister(hdev);
2461
2462 return ret;
2463 }
2464 EXPORT_SYMBOL_GPL(hid_add_device);
2465
2466 /**
2467 * hid_allocate_device - allocate new hid device descriptor
2468 *
2469 * Allocate and initialize hid device, so that hid_destroy_device might be
2470 * used to free it.
2471 *
2472 * New hid_device pointer is returned on success, otherwise ERR_PTR encoded
2473 * error value.
2474 */
2475 struct hid_device *hid_allocate_device(void)
2476 {
2477 struct hid_device *hdev;
2478 int ret = -ENOMEM;
2479
2480 hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
2481 if (hdev == NULL)
2482 return ERR_PTR(ret);
2483
2484 device_initialize(&hdev->dev);
2485 hdev->dev.release = hid_device_release;
2486 hdev->dev.bus = &hid_bus_type;
2487
2488 hid_close_report(hdev);
2489
2490 init_waitqueue_head(&hdev->debug_wait);
2491 INIT_LIST_HEAD(&hdev->debug_list);
2492 spin_lock_init(&hdev->debug_list_lock);
2493 sema_init(&hdev->driver_lock, 1);
2494 sema_init(&hdev->driver_input_lock, 1);
2495
2496 return hdev;
2497 }
2498 EXPORT_SYMBOL_GPL(hid_allocate_device);
2499
2500 static void hid_remove_device(struct hid_device *hdev)
2501 {
2502 if (hdev->status & HID_STAT_ADDED) {
2503 device_del(&hdev->dev);
2504 hid_debug_unregister(hdev);
2505 hdev->status &= ~HID_STAT_ADDED;
2506 }
2507 kfree(hdev->dev_rdesc);
2508 hdev->dev_rdesc = NULL;
2509 hdev->dev_rsize = 0;
2510 }
2511
2512 /**
2513 * hid_destroy_device - free previously allocated device
2514 *
2515 * @hdev: hid device
2516 *
2517 * If you allocate hid_device through hid_allocate_device, you should ever
2518 * free by this function.
2519 */
2520 void hid_destroy_device(struct hid_device *hdev)
2521 {
2522 hid_remove_device(hdev);
2523 put_device(&hdev->dev);
2524 }
2525 EXPORT_SYMBOL_GPL(hid_destroy_device);
2526
2527 int __hid_register_driver(struct hid_driver *hdrv, struct module *owner,
2528 const char *mod_name)
2529 {
2530 int ret;
2531
2532 hdrv->driver.name = hdrv->name;
2533 hdrv->driver.bus = &hid_bus_type;
2534 hdrv->driver.owner = owner;
2535 hdrv->driver.mod_name = mod_name;
2536
2537 INIT_LIST_HEAD(&hdrv->dyn_list);
2538 spin_lock_init(&hdrv->dyn_lock);
2539
2540 ret = driver_register(&hdrv->driver);
2541 if (ret)
2542 return ret;
2543
2544 ret = driver_create_file(&hdrv->driver, &driver_attr_new_id);
2545 if (ret)
2546 driver_unregister(&hdrv->driver);
2547
2548 return ret;
2549 }
2550 EXPORT_SYMBOL_GPL(__hid_register_driver);
2551
2552 void hid_unregister_driver(struct hid_driver *hdrv)
2553 {
2554 driver_remove_file(&hdrv->driver, &driver_attr_new_id);
2555 driver_unregister(&hdrv->driver);
2556 hid_free_dynids(hdrv);
2557 }
2558 EXPORT_SYMBOL_GPL(hid_unregister_driver);
2559
2560 int hid_check_keys_pressed(struct hid_device *hid)
2561 {
2562 struct hid_input *hidinput;
2563 int i;
2564
2565 if (!(hid->claimed & HID_CLAIMED_INPUT))
2566 return 0;
2567
2568 list_for_each_entry(hidinput, &hid->inputs, list) {
2569 for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++)
2570 if (hidinput->input->key[i])
2571 return 1;
2572 }
2573
2574 return 0;
2575 }
2576
2577 EXPORT_SYMBOL_GPL(hid_check_keys_pressed);
2578
2579 static int __init hid_init(void)
2580 {
2581 int ret;
2582
2583 if (hid_debug)
2584 pr_warn("hid_debug is now used solely for parser and driver debugging.\n"
2585 "debugfs is now used for inspecting the device (report descriptor, reports)\n");
2586
2587 ret = bus_register(&hid_bus_type);
2588 if (ret) {
2589 pr_err("can't register hid bus\n");
2590 goto err;
2591 }
2592
2593 ret = hidraw_init();
2594 if (ret)
2595 goto err_bus;
2596
2597 hid_debug_init();
2598
2599 return 0;
2600 err_bus:
2601 bus_unregister(&hid_bus_type);
2602 err:
2603 return ret;
2604 }
2605
2606 static void __exit hid_exit(void)
2607 {
2608 hid_debug_exit();
2609 hidraw_exit();
2610 bus_unregister(&hid_bus_type);
2611 }
2612
2613 module_init(hid_init);
2614 module_exit(hid_exit);
2615
2616 MODULE_AUTHOR("Andreas Gal");
2617 MODULE_AUTHOR("Vojtech Pavlik");
2618 MODULE_AUTHOR("Jiri Kosina");
2619 MODULE_LICENSE(DRIVER_LICENSE);
2620
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