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staging: brcm80211: remove wl_ops_set_rts_threshold
[zen-stable.git] / drivers / hid / hid-core.c
blob408c4bea4d8d5278a9004af757e3bb11cc03695f
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) 2006-2010 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
33 #include <linux/hid.h>
34 #include <linux/hiddev.h>
35 #include <linux/hid-debug.h>
36 #include <linux/hidraw.h>
37
38 #include "hid-ids.h"
39
40 /*
41 * Version Information
42 */
43
44 #define DRIVER_DESC "HID core driver"
45 #define DRIVER_LICENSE "GPL"
46
47 int hid_debug = 0;
48 module_param_named(debug, hid_debug, int, 0600);
49 MODULE_PARM_DESC(debug, "toggle HID debugging messages");
50 EXPORT_SYMBOL_GPL(hid_debug);
51
52 /*
53 * Register a new report for a device.
54 */
55
56 struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
57 {
58 struct hid_report_enum *report_enum = device->report_enum + type;
59 struct hid_report *report;
60
61 if (report_enum->report_id_hash[id])
62 return report_enum->report_id_hash[id];
63
64 report = kzalloc(sizeof(struct hid_report), GFP_KERNEL);
65 if (!report)
66 return NULL;
67
68 if (id != 0)
69 report_enum->numbered = 1;
70
71 report->id = id;
72 report->type = type;
73 report->size = 0;
74 report->device = device;
75 report_enum->report_id_hash[id] = report;
76
77 list_add_tail(&report->list, &report_enum->report_list);
78
79 return report;
80 }
81 EXPORT_SYMBOL_GPL(hid_register_report);
82
83 /*
84 * Register a new field for this report.
85 */
86
87 static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values)
88 {
89 struct hid_field *field;
90
91 if (report->maxfield == HID_MAX_FIELDS) {
92 dbg_hid("too many fields in report\n");
93 return NULL;
94 }
95
96 field = kzalloc((sizeof(struct hid_field) +
97 usages * sizeof(struct hid_usage) +
98 values * sizeof(unsigned)), GFP_KERNEL);
99 if (!field)
100 return NULL;
101
102 field->index = report->maxfield++;
103 report->field[field->index] = field;
104 field->usage = (struct hid_usage *)(field + 1);
105 field->value = (s32 *)(field->usage + usages);
106 field->report = report;
107
108 return field;
109 }
110
111 /*
112 * Open a collection. The type/usage is pushed on the stack.
113 */
114
115 static int open_collection(struct hid_parser *parser, unsigned type)
116 {
117 struct hid_collection *collection;
118 unsigned usage;
119
120 usage = parser->local.usage[0];
121
122 if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) {
123 dbg_hid("collection stack overflow\n");
124 return -1;
125 }
126
127 if (parser->device->maxcollection == parser->device->collection_size) {
128 collection = kmalloc(sizeof(struct hid_collection) *
129 parser->device->collection_size * 2, GFP_KERNEL);
130 if (collection == NULL) {
131 dbg_hid("failed to reallocate collection array\n");
132 return -1;
133 }
134 memcpy(collection, parser->device->collection,
135 sizeof(struct hid_collection) *
136 parser->device->collection_size);
137 memset(collection + parser->device->collection_size, 0,
138 sizeof(struct hid_collection) *
139 parser->device->collection_size);
140 kfree(parser->device->collection);
141 parser->device->collection = collection;
142 parser->device->collection_size *= 2;
143 }
144
145 parser->collection_stack[parser->collection_stack_ptr++] =
146 parser->device->maxcollection;
147
148 collection = parser->device->collection +
149 parser->device->maxcollection++;
150 collection->type = type;
151 collection->usage = usage;
152 collection->level = parser->collection_stack_ptr - 1;
153
154 if (type == HID_COLLECTION_APPLICATION)
155 parser->device->maxapplication++;
156
157 return 0;
158 }
159
160 /*
161 * Close a collection.
162 */
163
164 static int close_collection(struct hid_parser *parser)
165 {
166 if (!parser->collection_stack_ptr) {
167 dbg_hid("collection stack underflow\n");
168 return -1;
169 }
170 parser->collection_stack_ptr--;
171 return 0;
172 }
173
174 /*
175 * Climb up the stack, search for the specified collection type
176 * and return the usage.
177 */
178
179 static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type)
180 {
181 struct hid_collection *collection = parser->device->collection;
182 int n;
183
184 for (n = parser->collection_stack_ptr - 1; n >= 0; n--) {
185 unsigned index = parser->collection_stack[n];
186 if (collection[index].type == type)
187 return collection[index].usage;
188 }
189 return 0; /* we know nothing about this usage type */
190 }
191
192 /*
193 * Add a usage to the temporary parser table.
194 */
195
196 static int hid_add_usage(struct hid_parser *parser, unsigned usage)
197 {
198 if (parser->local.usage_index >= HID_MAX_USAGES) {
199 dbg_hid("usage index exceeded\n");
200 return -1;
201 }
202 parser->local.usage[parser->local.usage_index] = usage;
203 parser->local.collection_index[parser->local.usage_index] =
204 parser->collection_stack_ptr ?
205 parser->collection_stack[parser->collection_stack_ptr - 1] : 0;
206 parser->local.usage_index++;
207 return 0;
208 }
209
210 /*
211 * Register a new field for this report.
212 */
213
214 static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags)
215 {
216 struct hid_report *report;
217 struct hid_field *field;
218 int usages;
219 unsigned offset;
220 int i;
221
222 report = hid_register_report(parser->device, report_type, parser->global.report_id);
223 if (!report) {
224 dbg_hid("hid_register_report failed\n");
225 return -1;
226 }
227
228 if (parser->global.logical_maximum < parser->global.logical_minimum) {
229 dbg_hid("logical range invalid %d %d\n", parser->global.logical_minimum, parser->global.logical_maximum);
230 return -1;
231 }
232
233 offset = report->size;
234 report->size += parser->global.report_size * parser->global.report_count;
235
236 if (!parser->local.usage_index) /* Ignore padding fields */
237 return 0;
238
239 usages = max_t(int, parser->local.usage_index, parser->global.report_count);
240
241 field = hid_register_field(report, usages, parser->global.report_count);
242 if (!field)
243 return 0;
244
245 field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
246 field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
247 field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
248
249 for (i = 0; i < usages; i++) {
250 int j = i;
251 /* Duplicate the last usage we parsed if we have excess values */
252 if (i >= parser->local.usage_index)
253 j = parser->local.usage_index - 1;
254 field->usage[i].hid = parser->local.usage[j];
255 field->usage[i].collection_index =
256 parser->local.collection_index[j];
257 }
258
259 field->maxusage = usages;
260 field->flags = flags;
261 field->report_offset = offset;
262 field->report_type = report_type;
263 field->report_size = parser->global.report_size;
264 field->report_count = parser->global.report_count;
265 field->logical_minimum = parser->global.logical_minimum;
266 field->logical_maximum = parser->global.logical_maximum;
267 field->physical_minimum = parser->global.physical_minimum;
268 field->physical_maximum = parser->global.physical_maximum;
269 field->unit_exponent = parser->global.unit_exponent;
270 field->unit = parser->global.unit;
271
272 return 0;
273 }
274
275 /*
276 * Read data value from item.
277 */
278
279 static u32 item_udata(struct hid_item *item)
280 {
281 switch (item->size) {
282 case 1: return item->data.u8;
283 case 2: return item->data.u16;
284 case 4: return item->data.u32;
285 }
286 return 0;
287 }
288
289 static s32 item_sdata(struct hid_item *item)
290 {
291 switch (item->size) {
292 case 1: return item->data.s8;
293 case 2: return item->data.s16;
294 case 4: return item->data.s32;
295 }
296 return 0;
297 }
298
299 /*
300 * Process a global item.
301 */
302
303 static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
304 {
305 switch (item->tag) {
306 case HID_GLOBAL_ITEM_TAG_PUSH:
307
308 if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
309 dbg_hid("global environment stack overflow\n");
310 return -1;
311 }
312
313 memcpy(parser->global_stack + parser->global_stack_ptr++,
314 &parser->global, sizeof(struct hid_global));
315 return 0;
316
317 case HID_GLOBAL_ITEM_TAG_POP:
318
319 if (!parser->global_stack_ptr) {
320 dbg_hid("global environment stack underflow\n");
321 return -1;
322 }
323
324 memcpy(&parser->global, parser->global_stack +
325 --parser->global_stack_ptr, sizeof(struct hid_global));
326 return 0;
327
328 case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
329 parser->global.usage_page = item_udata(item);
330 return 0;
331
332 case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
333 parser->global.logical_minimum = item_sdata(item);
334 return 0;
335
336 case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
337 if (parser->global.logical_minimum < 0)
338 parser->global.logical_maximum = item_sdata(item);
339 else
340 parser->global.logical_maximum = item_udata(item);
341 return 0;
342
343 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
344 parser->global.physical_minimum = item_sdata(item);
345 return 0;
346
347 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
348 if (parser->global.physical_minimum < 0)
349 parser->global.physical_maximum = item_sdata(item);
350 else
351 parser->global.physical_maximum = item_udata(item);
352 return 0;
353
354 case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
355 parser->global.unit_exponent = item_sdata(item);
356 return 0;
357
358 case HID_GLOBAL_ITEM_TAG_UNIT:
359 parser->global.unit = item_udata(item);
360 return 0;
361
362 case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
363 parser->global.report_size = item_udata(item);
364 if (parser->global.report_size > 32) {
365 dbg_hid("invalid report_size %d\n",
366 parser->global.report_size);
367 return -1;
368 }
369 return 0;
370
371 case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
372 parser->global.report_count = item_udata(item);
373 if (parser->global.report_count > HID_MAX_USAGES) {
374 dbg_hid("invalid report_count %d\n",
375 parser->global.report_count);
376 return -1;
377 }
378 return 0;
379
380 case HID_GLOBAL_ITEM_TAG_REPORT_ID:
381 parser->global.report_id = item_udata(item);
382 if (parser->global.report_id == 0) {
383 dbg_hid("report_id 0 is invalid\n");
384 return -1;
385 }
386 return 0;
387
388 default:
389 dbg_hid("unknown global tag 0x%x\n", item->tag);
390 return -1;
391 }
392 }
393
394 /*
395 * Process a local item.
396 */
397
398 static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
399 {
400 __u32 data;
401 unsigned n;
402
403 data = item_udata(item);
404
405 switch (item->tag) {
406 case HID_LOCAL_ITEM_TAG_DELIMITER:
407
408 if (data) {
409 /*
410 * We treat items before the first delimiter
411 * as global to all usage sets (branch 0).
412 * In the moment we process only these global
413 * items and the first delimiter set.
414 */
415 if (parser->local.delimiter_depth != 0) {
416 dbg_hid("nested delimiters\n");
417 return -1;
418 }
419 parser->local.delimiter_depth++;
420 parser->local.delimiter_branch++;
421 } else {
422 if (parser->local.delimiter_depth < 1) {
423 dbg_hid("bogus close delimiter\n");
424 return -1;
425 }
426 parser->local.delimiter_depth--;
427 }
428 return 1;
429
430 case HID_LOCAL_ITEM_TAG_USAGE:
431
432 if (parser->local.delimiter_branch > 1) {
433 dbg_hid("alternative usage ignored\n");
434 return 0;
435 }
436
437 if (item->size <= 2)
438 data = (parser->global.usage_page << 16) + data;
439
440 return hid_add_usage(parser, data);
441
442 case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
443
444 if (parser->local.delimiter_branch > 1) {
445 dbg_hid("alternative usage ignored\n");
446 return 0;
447 }
448
449 if (item->size <= 2)
450 data = (parser->global.usage_page << 16) + data;
451
452 parser->local.usage_minimum = data;
453 return 0;
454
455 case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
456
457 if (parser->local.delimiter_branch > 1) {
458 dbg_hid("alternative usage ignored\n");
459 return 0;
460 }
461
462 if (item->size <= 2)
463 data = (parser->global.usage_page << 16) + data;
464
465 for (n = parser->local.usage_minimum; n <= data; n++)
466 if (hid_add_usage(parser, n)) {
467 dbg_hid("hid_add_usage failed\n");
468 return -1;
469 }
470 return 0;
471
472 default:
473
474 dbg_hid("unknown local item tag 0x%x\n", item->tag);
475 return 0;
476 }
477 return 0;
478 }
479
480 /*
481 * Process a main item.
482 */
483
484 static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
485 {
486 __u32 data;
487 int ret;
488
489 data = item_udata(item);
490
491 switch (item->tag) {
492 case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
493 ret = open_collection(parser, data & 0xff);
494 break;
495 case HID_MAIN_ITEM_TAG_END_COLLECTION:
496 ret = close_collection(parser);
497 break;
498 case HID_MAIN_ITEM_TAG_INPUT:
499 ret = hid_add_field(parser, HID_INPUT_REPORT, data);
500 break;
501 case HID_MAIN_ITEM_TAG_OUTPUT:
502 ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
503 break;
504 case HID_MAIN_ITEM_TAG_FEATURE:
505 ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
506 break;
507 default:
508 dbg_hid("unknown main item tag 0x%x\n", item->tag);
509 ret = 0;
510 }
511
512 memset(&parser->local, 0, sizeof(parser->local)); /* Reset the local parser environment */
513
514 return ret;
515 }
516
517 /*
518 * Process a reserved item.
519 */
520
521 static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
522 {
523 dbg_hid("reserved item type, tag 0x%x\n", item->tag);
524 return 0;
525 }
526
527 /*
528 * Free a report and all registered fields. The field->usage and
529 * field->value table's are allocated behind the field, so we need
530 * only to free(field) itself.
531 */
532
533 static void hid_free_report(struct hid_report *report)
534 {
535 unsigned n;
536
537 for (n = 0; n < report->maxfield; n++)
538 kfree(report->field[n]);
539 kfree(report);
540 }
541
542 /*
543 * Free a device structure, all reports, and all fields.
544 */
545
546 static void hid_device_release(struct device *dev)
547 {
548 struct hid_device *device = container_of(dev, struct hid_device, dev);
549 unsigned i, j;
550
551 for (i = 0; i < HID_REPORT_TYPES; i++) {
552 struct hid_report_enum *report_enum = device->report_enum + i;
553
554 for (j = 0; j < 256; j++) {
555 struct hid_report *report = report_enum->report_id_hash[j];
556 if (report)
557 hid_free_report(report);
558 }
559 }
560
561 kfree(device->rdesc);
562 kfree(device->collection);
563 kfree(device);
564 }
565
566 /*
567 * Fetch a report description item from the data stream. We support long
568 * items, though they are not used yet.
569 */
570
571 static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
572 {
573 u8 b;
574
575 if ((end - start) <= 0)
576 return NULL;
577
578 b = *start++;
579
580 item->type = (b >> 2) & 3;
581 item->tag = (b >> 4) & 15;
582
583 if (item->tag == HID_ITEM_TAG_LONG) {
584
585 item->format = HID_ITEM_FORMAT_LONG;
586
587 if ((end - start) < 2)
588 return NULL;
589
590 item->size = *start++;
591 item->tag = *start++;
592
593 if ((end - start) < item->size)
594 return NULL;
595
596 item->data.longdata = start;
597 start += item->size;
598 return start;
599 }
600
601 item->format = HID_ITEM_FORMAT_SHORT;
602 item->size = b & 3;
603
604 switch (item->size) {
605 case 0:
606 return start;
607
608 case 1:
609 if ((end - start) < 1)
610 return NULL;
611 item->data.u8 = *start++;
612 return start;
613
614 case 2:
615 if ((end - start) < 2)
616 return NULL;
617 item->data.u16 = get_unaligned_le16(start);
618 start = (__u8 *)((__le16 *)start + 1);
619 return start;
620
621 case 3:
622 item->size++;
623 if ((end - start) < 4)
624 return NULL;
625 item->data.u32 = get_unaligned_le32(start);
626 start = (__u8 *)((__le32 *)start + 1);
627 return start;
628 }
629
630 return NULL;
631 }
632
633 /**
634 * hid_parse_report - parse device report
635 *
636 * @device: hid device
637 * @start: report start
638 * @size: report size
639 *
640 * Parse a report description into a hid_device structure. Reports are
641 * enumerated, fields are attached to these reports.
642 * 0 returned on success, otherwise nonzero error value.
643 */
644 int hid_parse_report(struct hid_device *device, __u8 *start,
645 unsigned size)
646 {
647 struct hid_parser *parser;
648 struct hid_item item;
649 __u8 *end;
650 int ret;
651 static int (*dispatch_type[])(struct hid_parser *parser,
652 struct hid_item *item) = {
653 hid_parser_main,
654 hid_parser_global,
655 hid_parser_local,
656 hid_parser_reserved
657 };
658
659 if (device->driver->report_fixup)
660 start = device->driver->report_fixup(device, start, &size);
661
662 device->rdesc = kmemdup(start, size, GFP_KERNEL);
663 if (device->rdesc == NULL)
664 return -ENOMEM;
665 device->rsize = size;
666
667 parser = vzalloc(sizeof(struct hid_parser));
668 if (!parser) {
669 ret = -ENOMEM;
670 goto err;
671 }
672
673 parser->device = device;
674
675 end = start + size;
676 ret = -EINVAL;
677 while ((start = fetch_item(start, end, &item)) != NULL) {
678
679 if (item.format != HID_ITEM_FORMAT_SHORT) {
680 dbg_hid("unexpected long global item\n");
681 goto err;
682 }
683
684 if (dispatch_type[item.type](parser, &item)) {
685 dbg_hid("item %u %u %u %u parsing failed\n",
686 item.format, (unsigned)item.size,
687 (unsigned)item.type, (unsigned)item.tag);
688 goto err;
689 }
690
691 if (start == end) {
692 if (parser->collection_stack_ptr) {
693 dbg_hid("unbalanced collection at end of report description\n");
694 goto err;
695 }
696 if (parser->local.delimiter_depth) {
697 dbg_hid("unbalanced delimiter at end of report description\n");
698 goto err;
699 }
700 vfree(parser);
701 return 0;
702 }
703 }
704
705 dbg_hid("item fetching failed at offset %d\n", (int)(end - start));
706 err:
707 vfree(parser);
708 return ret;
709 }
710 EXPORT_SYMBOL_GPL(hid_parse_report);
711
712 /*
713 * Convert a signed n-bit integer to signed 32-bit integer. Common
714 * cases are done through the compiler, the screwed things has to be
715 * done by hand.
716 */
717
718 static s32 snto32(__u32 value, unsigned n)
719 {
720 switch (n) {
721 case 8: return ((__s8)value);
722 case 16: return ((__s16)value);
723 case 32: return ((__s32)value);
724 }
725 return value & (1 << (n - 1)) ? value | (-1 << n) : value;
726 }
727
728 /*
729 * Convert a signed 32-bit integer to a signed n-bit integer.
730 */
731
732 static u32 s32ton(__s32 value, unsigned n)
733 {
734 s32 a = value >> (n - 1);
735 if (a && a != -1)
736 return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
737 return value & ((1 << n) - 1);
738 }
739
740 /*
741 * Extract/implement a data field from/to a little endian report (bit array).
742 *
743 * Code sort-of follows HID spec:
744 * http://www.usb.org/developers/devclass_docs/HID1_11.pdf
745 *
746 * While the USB HID spec allows unlimited length bit fields in "report
747 * descriptors", most devices never use more than 16 bits.
748 * One model of UPS is claimed to report "LINEV" as a 32-bit field.
749 * Search linux-kernel and linux-usb-devel archives for "hid-core extract".
750 */
751
752 static __u32 extract(const struct hid_device *hid, __u8 *report,
753 unsigned offset, unsigned n)
754 {
755 u64 x;
756
757 if (n > 32)
758 hid_warn(hid, "extract() called with n (%d) > 32! (%s)\n",
759 n, current->comm);
760
761 report += offset >> 3; /* adjust byte index */
762 offset &= 7; /* now only need bit offset into one byte */
763 x = get_unaligned_le64(report);
764 x = (x >> offset) & ((1ULL << n) - 1); /* extract bit field */
765 return (u32) x;
766 }
767
768 /*
769 * "implement" : set bits in a little endian bit stream.
770 * Same concepts as "extract" (see comments above).
771 * The data mangled in the bit stream remains in little endian
772 * order the whole time. It make more sense to talk about
773 * endianness of register values by considering a register
774 * a "cached" copy of the little endiad bit stream.
775 */
776 static void implement(const struct hid_device *hid, __u8 *report,
777 unsigned offset, unsigned n, __u32 value)
778 {
779 u64 x;
780 u64 m = (1ULL << n) - 1;
781
782 if (n > 32)
783 hid_warn(hid, "%s() called with n (%d) > 32! (%s)\n",
784 __func__, n, current->comm);
785
786 if (value > m)
787 hid_warn(hid, "%s() called with too large value %d! (%s)\n",
788 __func__, value, current->comm);
789 WARN_ON(value > m);
790 value &= m;
791
792 report += offset >> 3;
793 offset &= 7;
794
795 x = get_unaligned_le64(report);
796 x &= ~(m << offset);
797 x |= ((u64)value) << offset;
798 put_unaligned_le64(x, report);
799 }
800
801 /*
802 * Search an array for a value.
803 */
804
805 static int search(__s32 *array, __s32 value, unsigned n)
806 {
807 while (n--) {
808 if (*array++ == value)
809 return 0;
810 }
811 return -1;
812 }
813
814 /**
815 * hid_match_report - check if driver's raw_event should be called
816 *
817 * @hid: hid device
818 * @report_type: type to match against
819 *
820 * compare hid->driver->report_table->report_type to report->type
821 */
822 static int hid_match_report(struct hid_device *hid, struct hid_report *report)
823 {
824 const struct hid_report_id *id = hid->driver->report_table;
825
826 if (!id) /* NULL means all */
827 return 1;
828
829 for (; id->report_type != HID_TERMINATOR; id++)
830 if (id->report_type == HID_ANY_ID ||
831 id->report_type == report->type)
832 return 1;
833 return 0;
834 }
835
836 /**
837 * hid_match_usage - check if driver's event should be called
838 *
839 * @hid: hid device
840 * @usage: usage to match against
841 *
842 * compare hid->driver->usage_table->usage_{type,code} to
843 * usage->usage_{type,code}
844 */
845 static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage)
846 {
847 const struct hid_usage_id *id = hid->driver->usage_table;
848
849 if (!id) /* NULL means all */
850 return 1;
851
852 for (; id->usage_type != HID_ANY_ID - 1; id++)
853 if ((id->usage_hid == HID_ANY_ID ||
854 id->usage_hid == usage->hid) &&
855 (id->usage_type == HID_ANY_ID ||
856 id->usage_type == usage->type) &&
857 (id->usage_code == HID_ANY_ID ||
858 id->usage_code == usage->code))
859 return 1;
860 return 0;
861 }
862
863 static void hid_process_event(struct hid_device *hid, struct hid_field *field,
864 struct hid_usage *usage, __s32 value, int interrupt)
865 {
866 struct hid_driver *hdrv = hid->driver;
867 int ret;
868
869 hid_dump_input(hid, usage, value);
870
871 if (hdrv && hdrv->event && hid_match_usage(hid, usage)) {
872 ret = hdrv->event(hid, field, usage, value);
873 if (ret != 0) {
874 if (ret < 0)
875 dbg_hid("%s's event failed with %d\n",
876 hdrv->name, ret);
877 return;
878 }
879 }
880
881 if (hid->claimed & HID_CLAIMED_INPUT)
882 hidinput_hid_event(hid, field, usage, value);
883 if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event)
884 hid->hiddev_hid_event(hid, field, usage, value);
885 }
886
887 /*
888 * Analyse a received field, and fetch the data from it. The field
889 * content is stored for next report processing (we do differential
890 * reporting to the layer).
891 */
892
893 static void hid_input_field(struct hid_device *hid, struct hid_field *field,
894 __u8 *data, int interrupt)
895 {
896 unsigned n;
897 unsigned count = field->report_count;
898 unsigned offset = field->report_offset;
899 unsigned size = field->report_size;
900 __s32 min = field->logical_minimum;
901 __s32 max = field->logical_maximum;
902 __s32 *value;
903
904 value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC);
905 if (!value)
906 return;
907
908 for (n = 0; n < count; n++) {
909
910 value[n] = min < 0 ?
911 snto32(extract(hid, data, offset + n * size, size),
912 size) :
913 extract(hid, data, offset + n * size, size);
914
915 /* Ignore report if ErrorRollOver */
916 if (!(field->flags & HID_MAIN_ITEM_VARIABLE) &&
917 value[n] >= min && value[n] <= max &&
918 field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
919 goto exit;
920 }
921
922 for (n = 0; n < count; n++) {
923
924 if (HID_MAIN_ITEM_VARIABLE & field->flags) {
925 hid_process_event(hid, field, &field->usage[n], value[n], interrupt);
926 continue;
927 }
928
929 if (field->value[n] >= min && field->value[n] <= max
930 && field->usage[field->value[n] - min].hid
931 && search(value, field->value[n], count))
932 hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt);
933
934 if (value[n] >= min && value[n] <= max
935 && field->usage[value[n] - min].hid
936 && search(field->value, value[n], count))
937 hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt);
938 }
939
940 memcpy(field->value, value, count * sizeof(__s32));
941 exit:
942 kfree(value);
943 }
944
945 /*
946 * Output the field into the report.
947 */
948
949 static void hid_output_field(const struct hid_device *hid,
950 struct hid_field *field, __u8 *data)
951 {
952 unsigned count = field->report_count;
953 unsigned offset = field->report_offset;
954 unsigned size = field->report_size;
955 unsigned n;
956
957 for (n = 0; n < count; n++) {
958 if (field->logical_minimum < 0) /* signed values */
959 implement(hid, data, offset + n * size, size,
960 s32ton(field->value[n], size));
961 else /* unsigned values */
962 implement(hid, data, offset + n * size, size,
963 field->value[n]);
964 }
965 }
966
967 /*
968 * Create a report.
969 */
970
971 void hid_output_report(struct hid_report *report, __u8 *data)
972 {
973 unsigned n;
974
975 if (report->id > 0)
976 *data++ = report->id;
977
978 memset(data, 0, ((report->size - 1) >> 3) + 1);
979 for (n = 0; n < report->maxfield; n++)
980 hid_output_field(report->device, report->field[n], data);
981 }
982 EXPORT_SYMBOL_GPL(hid_output_report);
983
984 /*
985 * Set a field value. The report this field belongs to has to be
986 * created and transferred to the device, to set this value in the
987 * device.
988 */
989
990 int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
991 {
992 unsigned size = field->report_size;
993
994 hid_dump_input(field->report->device, field->usage + offset, value);
995
996 if (offset >= field->report_count) {
997 dbg_hid("offset (%d) exceeds report_count (%d)\n", offset, field->report_count);
998 return -1;
999 }
1000 if (field->logical_minimum < 0) {
1001 if (value != snto32(s32ton(value, size), size)) {
1002 dbg_hid("value %d is out of range\n", value);
1003 return -1;
1004 }
1005 }
1006 field->value[offset] = value;
1007 return 0;
1008 }
1009 EXPORT_SYMBOL_GPL(hid_set_field);
1010
1011 static struct hid_report *hid_get_report(struct hid_report_enum *report_enum,
1012 const u8 *data)
1013 {
1014 struct hid_report *report;
1015 unsigned int n = 0; /* Normally report number is 0 */
1016
1017 /* Device uses numbered reports, data[0] is report number */
1018 if (report_enum->numbered)
1019 n = *data;
1020
1021 report = report_enum->report_id_hash[n];
1022 if (report == NULL)
1023 dbg_hid("undefined report_id %u received\n", n);
1024
1025 return report;
1026 }
1027
1028 void hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
1029 int interrupt)
1030 {
1031 struct hid_report_enum *report_enum = hid->report_enum + type;
1032 struct hid_report *report;
1033 unsigned int a;
1034 int rsize, csize = size;
1035 u8 *cdata = data;
1036
1037 report = hid_get_report(report_enum, data);
1038 if (!report)
1039 return;
1040
1041 if (report_enum->numbered) {
1042 cdata++;
1043 csize--;
1044 }
1045
1046 rsize = ((report->size - 1) >> 3) + 1;
1047
1048 if (csize < rsize) {
1049 dbg_hid("report %d is too short, (%d < %d)\n", report->id,
1050 csize, rsize);
1051 memset(cdata + csize, 0, rsize - csize);
1052 }
1053
1054 if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event)
1055 hid->hiddev_report_event(hid, report);
1056 if (hid->claimed & HID_CLAIMED_HIDRAW)
1057 hidraw_report_event(hid, data, size);
1058
1059 for (a = 0; a < report->maxfield; a++)
1060 hid_input_field(hid, report->field[a], cdata, interrupt);
1061
1062 if (hid->claimed & HID_CLAIMED_INPUT)
1063 hidinput_report_event(hid, report);
1064 }
1065 EXPORT_SYMBOL_GPL(hid_report_raw_event);
1066
1067 /**
1068 * hid_input_report - report data from lower layer (usb, bt...)
1069 *
1070 * @hid: hid device
1071 * @type: HID report type (HID_*_REPORT)
1072 * @data: report contents
1073 * @size: size of data parameter
1074 * @interrupt: distinguish between interrupt and control transfers
1075 *
1076 * This is data entry for lower layers.
1077 */
1078 int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt)
1079 {
1080 struct hid_report_enum *report_enum;
1081 struct hid_driver *hdrv;
1082 struct hid_report *report;
1083 char *buf;
1084 unsigned int i;
1085 int ret;
1086
1087 if (!hid || !hid->driver)
1088 return -ENODEV;
1089 report_enum = hid->report_enum + type;
1090 hdrv = hid->driver;
1091
1092 if (!size) {
1093 dbg_hid("empty report\n");
1094 return -1;
1095 }
1096
1097 buf = kmalloc(sizeof(char) * HID_DEBUG_BUFSIZE, GFP_ATOMIC);
1098
1099 if (!buf)
1100 goto nomem;
1101
1102 /* dump the report */
1103 snprintf(buf, HID_DEBUG_BUFSIZE - 1,
1104 "\nreport (size %u) (%snumbered) = ", size, report_enum->numbered ? "" : "un");
1105 hid_debug_event(hid, buf);
1106
1107 for (i = 0; i < size; i++) {
1108 snprintf(buf, HID_DEBUG_BUFSIZE - 1,
1109 " %02x", data[i]);
1110 hid_debug_event(hid, buf);
1111 }
1112 hid_debug_event(hid, "\n");
1113 kfree(buf);
1114
1115 nomem:
1116 report = hid_get_report(report_enum, data);
1117
1118 if (!report)
1119 return -1;
1120
1121 if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) {
1122 ret = hdrv->raw_event(hid, report, data, size);
1123 if (ret != 0)
1124 return ret < 0 ? ret : 0;
1125 }
1126
1127 hid_report_raw_event(hid, type, data, size, interrupt);
1128
1129 return 0;
1130 }
1131 EXPORT_SYMBOL_GPL(hid_input_report);
1132
1133 static bool hid_match_one_id(struct hid_device *hdev,
1134 const struct hid_device_id *id)
1135 {
1136 return id->bus == hdev->bus &&
1137 (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) &&
1138 (id->product == HID_ANY_ID || id->product == hdev->product);
1139 }
1140
1141 static const struct hid_device_id *hid_match_id(struct hid_device *hdev,
1142 const struct hid_device_id *id)
1143 {
1144 for (; id->bus; id++)
1145 if (hid_match_one_id(hdev, id))
1146 return id;
1147
1148 return NULL;
1149 }
1150
1151 static const struct hid_device_id hid_hiddev_list[] = {
1152 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) },
1153 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) },
1154 { }
1155 };
1156
1157 static bool hid_hiddev(struct hid_device *hdev)
1158 {
1159 return !!hid_match_id(hdev, hid_hiddev_list);
1160 }
1161
1162
1163 static ssize_t
1164 read_report_descriptor(struct file *filp, struct kobject *kobj,
1165 struct bin_attribute *attr,
1166 char *buf, loff_t off, size_t count)
1167 {
1168 struct device *dev = container_of(kobj, struct device, kobj);
1169 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1170
1171 if (off >= hdev->rsize)
1172 return 0;
1173
1174 if (off + count > hdev->rsize)
1175 count = hdev->rsize - off;
1176
1177 memcpy(buf, hdev->rdesc + off, count);
1178
1179 return count;
1180 }
1181
1182 static struct bin_attribute dev_bin_attr_report_desc = {
1183 .attr = { .name = "report_descriptor", .mode = 0444 },
1184 .read = read_report_descriptor,
1185 .size = HID_MAX_DESCRIPTOR_SIZE,
1186 };
1187
1188 int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
1189 {
1190 static const char *types[] = { "Device", "Pointer", "Mouse", "Device",
1191 "Joystick", "Gamepad", "Keyboard", "Keypad",
1192 "Multi-Axis Controller"
1193 };
1194 const char *type, *bus;
1195 char buf[64];
1196 unsigned int i;
1197 int len;
1198 int ret;
1199
1200 if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE)
1201 connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV);
1202 if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE)
1203 connect_mask |= HID_CONNECT_HIDINPUT_FORCE;
1204 if (hdev->bus != BUS_USB)
1205 connect_mask &= ~HID_CONNECT_HIDDEV;
1206 if (hid_hiddev(hdev))
1207 connect_mask |= HID_CONNECT_HIDDEV_FORCE;
1208
1209 if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,
1210 connect_mask & HID_CONNECT_HIDINPUT_FORCE))
1211 hdev->claimed |= HID_CLAIMED_INPUT;
1212 if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect &&
1213 !hdev->hiddev_connect(hdev,
1214 connect_mask & HID_CONNECT_HIDDEV_FORCE))
1215 hdev->claimed |= HID_CLAIMED_HIDDEV;
1216 if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev))
1217 hdev->claimed |= HID_CLAIMED_HIDRAW;
1218
1219 if (!hdev->claimed) {
1220 hid_err(hdev, "claimed by neither input, hiddev nor hidraw\n");
1221 return -ENODEV;
1222 }
1223
1224 if ((hdev->claimed & HID_CLAIMED_INPUT) &&
1225 (connect_mask & HID_CONNECT_FF) && hdev->ff_init)
1226 hdev->ff_init(hdev);
1227
1228 len = 0;
1229 if (hdev->claimed & HID_CLAIMED_INPUT)
1230 len += sprintf(buf + len, "input");
1231 if (hdev->claimed & HID_CLAIMED_HIDDEV)
1232 len += sprintf(buf + len, "%shiddev%d", len ? "," : "",
1233 hdev->minor);
1234 if (hdev->claimed & HID_CLAIMED_HIDRAW)
1235 len += sprintf(buf + len, "%shidraw%d", len ? "," : "",
1236 ((struct hidraw *)hdev->hidraw)->minor);
1237
1238 type = "Device";
1239 for (i = 0; i < hdev->maxcollection; i++) {
1240 struct hid_collection *col = &hdev->collection[i];
1241 if (col->type == HID_COLLECTION_APPLICATION &&
1242 (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
1243 (col->usage & 0xffff) < ARRAY_SIZE(types)) {
1244 type = types[col->usage & 0xffff];
1245 break;
1246 }
1247 }
1248
1249 switch (hdev->bus) {
1250 case BUS_USB:
1251 bus = "USB";
1252 break;
1253 case BUS_BLUETOOTH:
1254 bus = "BLUETOOTH";
1255 break;
1256 default:
1257 bus = "<UNKNOWN>";
1258 }
1259
1260 ret = device_create_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1261 if (ret)
1262 hid_warn(hdev,
1263 "can't create sysfs report descriptor attribute err: %d\n", ret);
1264
1265 hid_info(hdev, "%s: %s HID v%x.%02x %s [%s] on %s\n",
1266 buf, bus, hdev->version >> 8, hdev->version & 0xff,
1267 type, hdev->name, hdev->phys);
1268
1269 return 0;
1270 }
1271 EXPORT_SYMBOL_GPL(hid_connect);
1272
1273 void hid_disconnect(struct hid_device *hdev)
1274 {
1275 device_remove_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1276 if (hdev->claimed & HID_CLAIMED_INPUT)
1277 hidinput_disconnect(hdev);
1278 if (hdev->claimed & HID_CLAIMED_HIDDEV)
1279 hdev->hiddev_disconnect(hdev);
1280 if (hdev->claimed & HID_CLAIMED_HIDRAW)
1281 hidraw_disconnect(hdev);
1282 }
1283 EXPORT_SYMBOL_GPL(hid_disconnect);
1284
1285 /* a list of devices for which there is a specialized driver on HID bus */
1286 static const struct hid_device_id hid_have_special_driver[] = {
1287 { HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M1968) },
1288 { HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M2256) },
1289 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
1290 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
1291 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) },
1292 { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) },
1293 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ATV_IRCONTROL) },
1294 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
1295 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
1296 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
1297 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) },
1298 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1299 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1300 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1301 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1302 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1303 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1304 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1305 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1306 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1307 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1308 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1309 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) },
1310 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) },
1311 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) },
1312 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) },
1313 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) },
1314 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) },
1315 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1316 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1317 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
1318 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) },
1319 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) },
1320 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) },
1321 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1322 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1323 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1324 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1325 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1326 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
1327 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1328 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1329 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
1330 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
1331 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
1332 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
1333 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
1334 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
1335 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
1336 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
1337 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
1338 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
1339 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) },
1340 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) },
1341 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) },
1342 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1343 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1344 { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_T91MT) },
1345 { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
1346 { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
1347 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
1348 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
1349 { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
1350 { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
1351 { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) },
1352 { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
1353 { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
1354 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
1355 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
1356 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
1357 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS) },
1358 { HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) },
1359 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) },
1360 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) },
1361 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) },
1362 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
1363 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
1364 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
1365 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011) },
1366 { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH) },
1367 { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1) },
1368 { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH2) },
1369 { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH3) },
1370 { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH4) },
1371 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
1372 { HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) },
1373 { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
1374 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) },
1375 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) },
1376 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
1377 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) },
1378 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) },
1379 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
1380 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
1381 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
1382 { HID_USB_DEVICE(USB_VENDOR_ID_HANVON, USB_DEVICE_ID_HANVON_MULTITOUCH) },
1383 { HID_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS, USB_DEVICE_ID_IRTOUCH_INFRARED_USB) },
1384 { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
1385 { HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) },
1386 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
1387 { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
1388 { HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) },
1389 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
1390 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
1391 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) },
1392 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) },
1393 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) },
1394 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) },
1395 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) },
1396 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) },
1397 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) },
1398 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) },
1399 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) },
1400 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) },
1401 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
1402 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },
1403 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
1404 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) },
1405 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
1406 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) },
1407 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
1408 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
1409 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFP_WHEEL) },
1410 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
1411 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) },
1412 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) },
1413 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) },
1414 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) },
1415 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
1416 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
1417 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) },
1418 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) },
1419 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) },
1420 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) },
1421 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
1422 { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
1423 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
1424 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) },
1425 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) },
1426 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) },
1427 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) },
1428 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) },
1429 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) },
1430 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) },
1431 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) },
1432 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) },
1433 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) },
1434 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) },
1435 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) },
1436 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) },
1437 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) },
1438 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) },
1439 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) },
1440 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) },
1441 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) },
1442 { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) },
1443 { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
1444 { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
1445 { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
1446 { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN) },
1447 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
1448 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) },
1449 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
1450 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
1451 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
1452 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) },
1453 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
1454 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
1455 { HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
1456 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1457 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1458 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
1459 { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM, USB_DEVICE_ID_MTP) },
1460 { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, USB_DEVICE_ID_MTP_STM) },
1461 { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX, USB_DEVICE_ID_MTP_SITRONIX) },
1462 { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
1463 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
1464 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
1465 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) },
1466 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) },
1467 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
1468 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) },
1469 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
1470 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) },
1471 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
1472 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
1473 { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
1474 { HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
1475 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
1476 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
1477 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
1478 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
1479 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
1480 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
1481 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
1482 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
1483 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
1484 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
1485 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
1486 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
1487 { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
1488
1489 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
1490 { }
1491 };
1492
1493 struct hid_dynid {
1494 struct list_head list;
1495 struct hid_device_id id;
1496 };
1497
1498 /**
1499 * store_new_id - add a new HID device ID to this driver and re-probe devices
1500 * @driver: target device driver
1501 * @buf: buffer for scanning device ID data
1502 * @count: input size
1503 *
1504 * Adds a new dynamic hid device ID to this driver,
1505 * and causes the driver to probe for all devices again.
1506 */
1507 static ssize_t store_new_id(struct device_driver *drv, const char *buf,
1508 size_t count)
1509 {
1510 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1511 struct hid_dynid *dynid;
1512 __u32 bus, vendor, product;
1513 unsigned long driver_data = 0;
1514 int ret;
1515
1516 ret = sscanf(buf, "%x %x %x %lx",
1517 &bus, &vendor, &product, &driver_data);
1518 if (ret < 3)
1519 return -EINVAL;
1520
1521 dynid = kzalloc(sizeof(*dynid), GFP_KERNEL);
1522 if (!dynid)
1523 return -ENOMEM;
1524
1525 dynid->id.bus = bus;
1526 dynid->id.vendor = vendor;
1527 dynid->id.product = product;
1528 dynid->id.driver_data = driver_data;
1529
1530 spin_lock(&hdrv->dyn_lock);
1531 list_add_tail(&dynid->list, &hdrv->dyn_list);
1532 spin_unlock(&hdrv->dyn_lock);
1533
1534 ret = 0;
1535 if (get_driver(&hdrv->driver)) {
1536 ret = driver_attach(&hdrv->driver);
1537 put_driver(&hdrv->driver);
1538 }
1539
1540 return ret ? : count;
1541 }
1542 static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
1543
1544 static void hid_free_dynids(struct hid_driver *hdrv)
1545 {
1546 struct hid_dynid *dynid, *n;
1547
1548 spin_lock(&hdrv->dyn_lock);
1549 list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) {
1550 list_del(&dynid->list);
1551 kfree(dynid);
1552 }
1553 spin_unlock(&hdrv->dyn_lock);
1554 }
1555
1556 static const struct hid_device_id *hid_match_device(struct hid_device *hdev,
1557 struct hid_driver *hdrv)
1558 {
1559 struct hid_dynid *dynid;
1560
1561 spin_lock(&hdrv->dyn_lock);
1562 list_for_each_entry(dynid, &hdrv->dyn_list, list) {
1563 if (hid_match_one_id(hdev, &dynid->id)) {
1564 spin_unlock(&hdrv->dyn_lock);
1565 return &dynid->id;
1566 }
1567 }
1568 spin_unlock(&hdrv->dyn_lock);
1569
1570 return hid_match_id(hdev, hdrv->id_table);
1571 }
1572
1573 static int hid_bus_match(struct device *dev, struct device_driver *drv)
1574 {
1575 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1576 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1577
1578 if (!hid_match_device(hdev, hdrv))
1579 return 0;
1580
1581 /* generic wants all that don't have specialized driver */
1582 if (!strncmp(hdrv->name, "generic-", 8))
1583 return !hid_match_id(hdev, hid_have_special_driver);
1584
1585 return 1;
1586 }
1587
1588 static int hid_device_probe(struct device *dev)
1589 {
1590 struct hid_driver *hdrv = container_of(dev->driver,
1591 struct hid_driver, driver);
1592 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1593 const struct hid_device_id *id;
1594 int ret = 0;
1595
1596 if (!hdev->driver) {
1597 id = hid_match_device(hdev, hdrv);
1598 if (id == NULL)
1599 return -ENODEV;
1600
1601 hdev->driver = hdrv;
1602 if (hdrv->probe) {
1603 ret = hdrv->probe(hdev, id);
1604 } else { /* default probe */
1605 ret = hid_parse(hdev);
1606 if (!ret)
1607 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
1608 }
1609 if (ret)
1610 hdev->driver = NULL;
1611 }
1612 return ret;
1613 }
1614
1615 static int hid_device_remove(struct device *dev)
1616 {
1617 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1618 struct hid_driver *hdrv = hdev->driver;
1619
1620 if (hdrv) {
1621 if (hdrv->remove)
1622 hdrv->remove(hdev);
1623 else /* default remove */
1624 hid_hw_stop(hdev);
1625 hdev->driver = NULL;
1626 }
1627
1628 return 0;
1629 }
1630
1631 static int hid_uevent(struct device *dev, struct kobj_uevent_env *env)
1632 {
1633 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1634
1635 if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X",
1636 hdev->bus, hdev->vendor, hdev->product))
1637 return -ENOMEM;
1638
1639 if (add_uevent_var(env, "HID_NAME=%s", hdev->name))
1640 return -ENOMEM;
1641
1642 if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys))
1643 return -ENOMEM;
1644
1645 if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq))
1646 return -ENOMEM;
1647
1648 if (add_uevent_var(env, "MODALIAS=hid:b%04Xv%08Xp%08X",
1649 hdev->bus, hdev->vendor, hdev->product))
1650 return -ENOMEM;
1651
1652 return 0;
1653 }
1654
1655 static struct bus_type hid_bus_type = {
1656 .name = "hid",
1657 .match = hid_bus_match,
1658 .probe = hid_device_probe,
1659 .remove = hid_device_remove,
1660 .uevent = hid_uevent,
1661 };
1662
1663 /* a list of devices that shouldn't be handled by HID core at all */
1664 static const struct hid_device_id hid_ignore_list[] = {
1665 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) },
1666 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) },
1667 { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) },
1668 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) },
1669 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) },
1670 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) },
1671 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) },
1672 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) },
1673 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) },
1674 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) },
1675 { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) },
1676 { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) },
1677 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)},
1678 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)},
1679 { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) },
1680 { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) },
1681 { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) },
1682 { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) },
1683 { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) },
1684 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) },
1685 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) },
1686 { HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) },
1687 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) },
1688 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
1689 { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x0004) },
1690 { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
1691 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
1692 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
1693 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) },
1694 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0003) },
1695 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) },
1696 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) },
1697 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) },
1698 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) },
1699 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) },
1700 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) },
1701 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) },
1702 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) },
1703 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) },
1704 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) },
1705 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) },
1706 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) },
1707 { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) },
1708 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) },
1709 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) },
1710 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) },
1711 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) },
1712 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) },
1713 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) },
1714 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) },
1715 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) },
1716 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) },
1717 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) },
1718 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) },
1719 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) },
1720 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) },
1721 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) },
1722 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) },
1723 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) },
1724 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) },
1725 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) },
1726 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) },
1727 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) },
1728 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) },
1729 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) },
1730 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) },
1731 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) },
1732 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) },
1733 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) },
1734 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) },
1735 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) },
1736 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) },
1737 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) },
1738 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) },
1739 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) },
1740 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) },
1741 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) },
1742 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) },
1743 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) },
1744 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) },
1745 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) },
1746 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) },
1747 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) },
1748 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) },
1749 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) },
1750 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) },
1751 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) },
1752 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) },
1753 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) },
1754 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) },
1755 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) },
1756 { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) },
1757 { HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_JESS_YUREX) },
1758 { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) },
1759 { HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) },
1760 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) },
1761 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) },
1762 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) },
1763 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) },
1764 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) },
1765 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) },
1766 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) },
1767 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) },
1768 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY1) },
1769 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) },
1770 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) },
1771 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) },
1772 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) },
1773 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) },
1774 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) },
1775 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) },
1776 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) },
1777 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) },
1778 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) },
1779 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) },
1780 { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) },
1781 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) },
1782 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) },
1783 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) },
1784 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) },
1785 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) },
1786 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) },
1787 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) },
1788 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) },
1789 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) },
1790 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) },
1791 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) },
1792 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) },
1793 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) },
1794 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
1795 { HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
1796 { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
1797 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) },
1798 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
1799 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },
1800 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) },
1801 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) },
1802 { HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) },
1803 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) },
1804 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) },
1805 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) },
1806 { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) },
1807 { }
1808 };
1809
1810 /**
1811 * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer
1812 *
1813 * There are composite devices for which we want to ignore only a certain
1814 * interface. This is a list of devices for which only the mouse interface will
1815 * be ignored. This allows a dedicated driver to take care of the interface.
1816 */
1817 static const struct hid_device_id hid_mouse_ignore_list[] = {
1818 /* appletouch driver */
1819 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1820 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1821 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1822 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1823 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1824 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1825 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1826 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1827 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1828 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1829 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1830 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1831 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1832 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
1833 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1834 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1835 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1836 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1837 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1838 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
1839 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1840 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1841 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
1842 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
1843 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
1844 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
1845 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
1846 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
1847 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
1848 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
1849 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
1850 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
1851 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1852 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1853 { }
1854 };
1855
1856 static bool hid_ignore(struct hid_device *hdev)
1857 {
1858 switch (hdev->vendor) {
1859 case USB_VENDOR_ID_CODEMERCS:
1860 /* ignore all Code Mercenaries IOWarrior devices */
1861 if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST &&
1862 hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST)
1863 return true;
1864 break;
1865 case USB_VENDOR_ID_LOGITECH:
1866 if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST &&
1867 hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST)
1868 return true;
1869 break;
1870 case USB_VENDOR_ID_SOUNDGRAPH:
1871 if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST &&
1872 hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST)
1873 return true;
1874 break;
1875 case USB_VENDOR_ID_HANWANG:
1876 if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST &&
1877 hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST)
1878 return true;
1879 break;
1880 }
1881
1882 if (hdev->type == HID_TYPE_USBMOUSE &&
1883 hid_match_id(hdev, hid_mouse_ignore_list))
1884 return true;
1885
1886 return !!hid_match_id(hdev, hid_ignore_list);
1887 }
1888
1889 int hid_add_device(struct hid_device *hdev)
1890 {
1891 static atomic_t id = ATOMIC_INIT(0);
1892 int ret;
1893
1894 if (WARN_ON(hdev->status & HID_STAT_ADDED))
1895 return -EBUSY;
1896
1897 /* we need to kill them here, otherwise they will stay allocated to
1898 * wait for coming driver */
1899 if (!(hdev->quirks & HID_QUIRK_NO_IGNORE)
1900 && (hid_ignore(hdev) || (hdev->quirks & HID_QUIRK_IGNORE)))
1901 return -ENODEV;
1902
1903 /* XXX hack, any other cleaner solution after the driver core
1904 * is converted to allow more than 20 bytes as the device name? */
1905 dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
1906 hdev->vendor, hdev->product, atomic_inc_return(&id));
1907
1908 hid_debug_register(hdev, dev_name(&hdev->dev));
1909 ret = device_add(&hdev->dev);
1910 if (!ret)
1911 hdev->status |= HID_STAT_ADDED;
1912 else
1913 hid_debug_unregister(hdev);
1914
1915 return ret;
1916 }
1917 EXPORT_SYMBOL_GPL(hid_add_device);
1918
1919 /**
1920 * hid_allocate_device - allocate new hid device descriptor
1921 *
1922 * Allocate and initialize hid device, so that hid_destroy_device might be
1923 * used to free it.
1924 *
1925 * New hid_device pointer is returned on success, otherwise ERR_PTR encoded
1926 * error value.
1927 */
1928 struct hid_device *hid_allocate_device(void)
1929 {
1930 struct hid_device *hdev;
1931 unsigned int i;
1932 int ret = -ENOMEM;
1933
1934 hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
1935 if (hdev == NULL)
1936 return ERR_PTR(ret);
1937
1938 device_initialize(&hdev->dev);
1939 hdev->dev.release = hid_device_release;
1940 hdev->dev.bus = &hid_bus_type;
1941
1942 hdev->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS,
1943 sizeof(struct hid_collection), GFP_KERNEL);
1944 if (hdev->collection == NULL)
1945 goto err;
1946 hdev->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
1947
1948 for (i = 0; i < HID_REPORT_TYPES; i++)
1949 INIT_LIST_HEAD(&hdev->report_enum[i].report_list);
1950
1951 init_waitqueue_head(&hdev->debug_wait);
1952 INIT_LIST_HEAD(&hdev->debug_list);
1953
1954 return hdev;
1955 err:
1956 put_device(&hdev->dev);
1957 return ERR_PTR(ret);
1958 }
1959 EXPORT_SYMBOL_GPL(hid_allocate_device);
1960
1961 static void hid_remove_device(struct hid_device *hdev)
1962 {
1963 if (hdev->status & HID_STAT_ADDED) {
1964 device_del(&hdev->dev);
1965 hid_debug_unregister(hdev);
1966 hdev->status &= ~HID_STAT_ADDED;
1967 }
1968 }
1969
1970 /**
1971 * hid_destroy_device - free previously allocated device
1972 *
1973 * @hdev: hid device
1974 *
1975 * If you allocate hid_device through hid_allocate_device, you should ever
1976 * free by this function.
1977 */
1978 void hid_destroy_device(struct hid_device *hdev)
1979 {
1980 hid_remove_device(hdev);
1981 put_device(&hdev->dev);
1982 }
1983 EXPORT_SYMBOL_GPL(hid_destroy_device);
1984
1985 int __hid_register_driver(struct hid_driver *hdrv, struct module *owner,
1986 const char *mod_name)
1987 {
1988 int ret;
1989
1990 hdrv->driver.name = hdrv->name;
1991 hdrv->driver.bus = &hid_bus_type;
1992 hdrv->driver.owner = owner;
1993 hdrv->driver.mod_name = mod_name;
1994
1995 INIT_LIST_HEAD(&hdrv->dyn_list);
1996 spin_lock_init(&hdrv->dyn_lock);
1997
1998 ret = driver_register(&hdrv->driver);
1999 if (ret)
2000 return ret;
2001
2002 ret = driver_create_file(&hdrv->driver, &driver_attr_new_id);
2003 if (ret)
2004 driver_unregister(&hdrv->driver);
2005
2006 return ret;
2007 }
2008 EXPORT_SYMBOL_GPL(__hid_register_driver);
2009
2010 void hid_unregister_driver(struct hid_driver *hdrv)
2011 {
2012 driver_remove_file(&hdrv->driver, &driver_attr_new_id);
2013 driver_unregister(&hdrv->driver);
2014 hid_free_dynids(hdrv);
2015 }
2016 EXPORT_SYMBOL_GPL(hid_unregister_driver);
2017
2018 int hid_check_keys_pressed(struct hid_device *hid)
2019 {
2020 struct hid_input *hidinput;
2021 int i;
2022
2023 if (!(hid->claimed & HID_CLAIMED_INPUT))
2024 return 0;
2025
2026 list_for_each_entry(hidinput, &hid->inputs, list) {
2027 for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++)
2028 if (hidinput->input->key[i])
2029 return 1;
2030 }
2031
2032 return 0;
2033 }
2034
2035 EXPORT_SYMBOL_GPL(hid_check_keys_pressed);
2036
2037 static int __init hid_init(void)
2038 {
2039 int ret;
2040
2041 if (hid_debug)
2042 pr_warn("hid_debug is now used solely for parser and driver debugging.\n"
2043 "debugfs is now used for inspecting the device (report descriptor, reports)\n");
2044
2045 ret = bus_register(&hid_bus_type);
2046 if (ret) {
2047 pr_err("can't register hid bus\n");
2048 goto err;
2049 }
2050
2051 ret = hidraw_init();
2052 if (ret)
2053 goto err_bus;
2054
2055 hid_debug_init();
2056
2057 return 0;
2058 err_bus:
2059 bus_unregister(&hid_bus_type);
2060 err:
2061 return ret;
2062 }
2063
2064 static void __exit hid_exit(void)
2065 {
2066 hid_debug_exit();
2067 hidraw_exit();
2068 bus_unregister(&hid_bus_type);
2069 }
2070
2071 module_init(hid_init);
2072 module_exit(hid_exit);
2073
2074 MODULE_AUTHOR("Andreas Gal");
2075 MODULE_AUTHOR("Vojtech Pavlik");
2076 MODULE_AUTHOR("Jiri Kosina");
2077 MODULE_LICENSE(DRIVER_LICENSE);
2078