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ocfs2: Make the left masklogs compat.
[taoma-kernel.git] / drivers / hid / hid-core.c
blobd678cf3d33d5eaf80ab46a7ea58bcd369637c308
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 enviroment 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 enviroment 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 int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
1163 {
1164 static const char *types[] = { "Device", "Pointer", "Mouse", "Device",
1165 "Joystick", "Gamepad", "Keyboard", "Keypad",
1166 "Multi-Axis Controller"
1167 };
1168 const char *type, *bus;
1169 char buf[64];
1170 unsigned int i;
1171 int len;
1172
1173 if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE)
1174 connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV);
1175 if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE)
1176 connect_mask |= HID_CONNECT_HIDINPUT_FORCE;
1177 if (hdev->bus != BUS_USB)
1178 connect_mask &= ~HID_CONNECT_HIDDEV;
1179 if (hid_hiddev(hdev))
1180 connect_mask |= HID_CONNECT_HIDDEV_FORCE;
1181
1182 if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,
1183 connect_mask & HID_CONNECT_HIDINPUT_FORCE))
1184 hdev->claimed |= HID_CLAIMED_INPUT;
1185 if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect &&
1186 !hdev->hiddev_connect(hdev,
1187 connect_mask & HID_CONNECT_HIDDEV_FORCE))
1188 hdev->claimed |= HID_CLAIMED_HIDDEV;
1189 if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev))
1190 hdev->claimed |= HID_CLAIMED_HIDRAW;
1191
1192 if (!hdev->claimed) {
1193 hid_err(hdev, "claimed by neither input, hiddev nor hidraw\n");
1194 return -ENODEV;
1195 }
1196
1197 if ((hdev->claimed & HID_CLAIMED_INPUT) &&
1198 (connect_mask & HID_CONNECT_FF) && hdev->ff_init)
1199 hdev->ff_init(hdev);
1200
1201 len = 0;
1202 if (hdev->claimed & HID_CLAIMED_INPUT)
1203 len += sprintf(buf + len, "input");
1204 if (hdev->claimed & HID_CLAIMED_HIDDEV)
1205 len += sprintf(buf + len, "%shiddev%d", len ? "," : "",
1206 hdev->minor);
1207 if (hdev->claimed & HID_CLAIMED_HIDRAW)
1208 len += sprintf(buf + len, "%shidraw%d", len ? "," : "",
1209 ((struct hidraw *)hdev->hidraw)->minor);
1210
1211 type = "Device";
1212 for (i = 0; i < hdev->maxcollection; i++) {
1213 struct hid_collection *col = &hdev->collection[i];
1214 if (col->type == HID_COLLECTION_APPLICATION &&
1215 (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
1216 (col->usage & 0xffff) < ARRAY_SIZE(types)) {
1217 type = types[col->usage & 0xffff];
1218 break;
1219 }
1220 }
1221
1222 switch (hdev->bus) {
1223 case BUS_USB:
1224 bus = "USB";
1225 break;
1226 case BUS_BLUETOOTH:
1227 bus = "BLUETOOTH";
1228 break;
1229 default:
1230 bus = "<UNKNOWN>";
1231 }
1232
1233 hid_info(hdev, "%s: %s HID v%x.%02x %s [%s] on %s\n",
1234 buf, bus, hdev->version >> 8, hdev->version & 0xff,
1235 type, hdev->name, hdev->phys);
1236
1237 return 0;
1238 }
1239 EXPORT_SYMBOL_GPL(hid_connect);
1240
1241 void hid_disconnect(struct hid_device *hdev)
1242 {
1243 if (hdev->claimed & HID_CLAIMED_INPUT)
1244 hidinput_disconnect(hdev);
1245 if (hdev->claimed & HID_CLAIMED_HIDDEV)
1246 hdev->hiddev_disconnect(hdev);
1247 if (hdev->claimed & HID_CLAIMED_HIDRAW)
1248 hidraw_disconnect(hdev);
1249 }
1250 EXPORT_SYMBOL_GPL(hid_disconnect);
1251
1252 /* a list of devices for which there is a specialized driver on HID bus */
1253 static const struct hid_device_id hid_have_special_driver[] = {
1254 { HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M1968) },
1255 { HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M2256) },
1256 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
1257 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
1258 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) },
1259 #if defined(CONFIG_HID_ACRUX_FF) || defined(CONFIG_HID_ACRUX_FF_MODULE)
1260 { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) },
1261 #endif
1262 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ATV_IRCONTROL) },
1263 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
1264 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
1265 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
1266 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) },
1267 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1268 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1269 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1270 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1271 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1272 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1273 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1274 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1275 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1276 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1277 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1278 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) },
1279 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) },
1280 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) },
1281 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) },
1282 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) },
1283 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) },
1284 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1285 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1286 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
1287 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) },
1288 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) },
1289 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) },
1290 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1291 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1292 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1293 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1294 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1295 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
1296 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1297 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1298 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
1299 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
1300 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
1301 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
1302 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
1303 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
1304 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
1305 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) },
1306 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) },
1307 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) },
1308 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1309 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1310 { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_T91MT) },
1311 { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
1312 { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
1313 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
1314 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
1315 { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
1316 { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
1317 { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) },
1318 { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
1319 { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
1320 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
1321 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
1322 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
1323 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS) },
1324 { HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) },
1325 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) },
1326 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) },
1327 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) },
1328 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
1329 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
1330 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
1331 { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH) },
1332 { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1) },
1333 { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH2) },
1334 { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH3) },
1335 { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH4) },
1336 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
1337 { HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) },
1338 { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
1339 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) },
1340 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) },
1341 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
1342 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) },
1343 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) },
1344 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
1345 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
1346 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
1347 { HID_USB_DEVICE(USB_VENDOR_ID_HANVON, USB_DEVICE_ID_HANVON_MULTITOUCH) },
1348 { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
1349 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
1350 { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
1351 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
1352 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
1353 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) },
1354 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) },
1355 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) },
1356 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) },
1357 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) },
1358 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) },
1359 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) },
1360 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) },
1361 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) },
1362 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) },
1363 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
1364 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },
1365 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
1366 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) },
1367 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
1368 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) },
1369 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
1370 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
1371 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
1372 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) },
1373 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) },
1374 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) },
1375 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) },
1376 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
1377 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
1378 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) },
1379 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) },
1380 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) },
1381 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) },
1382 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
1383 { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
1384 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
1385 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) },
1386 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) },
1387 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) },
1388 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) },
1389 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) },
1390 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) },
1391 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) },
1392 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) },
1393 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) },
1394 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) },
1395 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) },
1396 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) },
1397 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) },
1398 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) },
1399 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) },
1400 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) },
1401 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) },
1402 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) },
1403 { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
1404 { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
1405 { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
1406 { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN) },
1407 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
1408 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
1409 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
1410 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
1411 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
1412 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1413 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1414 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
1415 { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM, USB_DEVICE_ID_MTP) },
1416 { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, USB_DEVICE_ID_MTP_STM) },
1417 { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX, USB_DEVICE_ID_MTP_SITRONIX) },
1418 { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
1419 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
1420 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
1421 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) },
1422 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) },
1423 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
1424 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) },
1425 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
1426 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) },
1427 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
1428 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
1429 { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
1430 { HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
1431 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
1432 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
1433 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
1434 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
1435 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
1436 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
1437 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
1438 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
1439 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
1440 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
1441 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
1442 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
1443 { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
1444
1445 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
1446 { }
1447 };
1448
1449 struct hid_dynid {
1450 struct list_head list;
1451 struct hid_device_id id;
1452 };
1453
1454 /**
1455 * store_new_id - add a new HID device ID to this driver and re-probe devices
1456 * @driver: target device driver
1457 * @buf: buffer for scanning device ID data
1458 * @count: input size
1459 *
1460 * Adds a new dynamic hid device ID to this driver,
1461 * and causes the driver to probe for all devices again.
1462 */
1463 static ssize_t store_new_id(struct device_driver *drv, const char *buf,
1464 size_t count)
1465 {
1466 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1467 struct hid_dynid *dynid;
1468 __u32 bus, vendor, product;
1469 unsigned long driver_data = 0;
1470 int ret;
1471
1472 ret = sscanf(buf, "%x %x %x %lx",
1473 &bus, &vendor, &product, &driver_data);
1474 if (ret < 3)
1475 return -EINVAL;
1476
1477 dynid = kzalloc(sizeof(*dynid), GFP_KERNEL);
1478 if (!dynid)
1479 return -ENOMEM;
1480
1481 dynid->id.bus = bus;
1482 dynid->id.vendor = vendor;
1483 dynid->id.product = product;
1484 dynid->id.driver_data = driver_data;
1485
1486 spin_lock(&hdrv->dyn_lock);
1487 list_add_tail(&dynid->list, &hdrv->dyn_list);
1488 spin_unlock(&hdrv->dyn_lock);
1489
1490 ret = 0;
1491 if (get_driver(&hdrv->driver)) {
1492 ret = driver_attach(&hdrv->driver);
1493 put_driver(&hdrv->driver);
1494 }
1495
1496 return ret ? : count;
1497 }
1498 static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
1499
1500 static void hid_free_dynids(struct hid_driver *hdrv)
1501 {
1502 struct hid_dynid *dynid, *n;
1503
1504 spin_lock(&hdrv->dyn_lock);
1505 list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) {
1506 list_del(&dynid->list);
1507 kfree(dynid);
1508 }
1509 spin_unlock(&hdrv->dyn_lock);
1510 }
1511
1512 static const struct hid_device_id *hid_match_device(struct hid_device *hdev,
1513 struct hid_driver *hdrv)
1514 {
1515 struct hid_dynid *dynid;
1516
1517 spin_lock(&hdrv->dyn_lock);
1518 list_for_each_entry(dynid, &hdrv->dyn_list, list) {
1519 if (hid_match_one_id(hdev, &dynid->id)) {
1520 spin_unlock(&hdrv->dyn_lock);
1521 return &dynid->id;
1522 }
1523 }
1524 spin_unlock(&hdrv->dyn_lock);
1525
1526 return hid_match_id(hdev, hdrv->id_table);
1527 }
1528
1529 static int hid_bus_match(struct device *dev, struct device_driver *drv)
1530 {
1531 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1532 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1533
1534 if (!hid_match_device(hdev, hdrv))
1535 return 0;
1536
1537 /* generic wants all that don't have specialized driver */
1538 if (!strncmp(hdrv->name, "generic-", 8))
1539 return !hid_match_id(hdev, hid_have_special_driver);
1540
1541 return 1;
1542 }
1543
1544 static int hid_device_probe(struct device *dev)
1545 {
1546 struct hid_driver *hdrv = container_of(dev->driver,
1547 struct hid_driver, driver);
1548 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1549 const struct hid_device_id *id;
1550 int ret = 0;
1551
1552 if (!hdev->driver) {
1553 id = hid_match_device(hdev, hdrv);
1554 if (id == NULL)
1555 return -ENODEV;
1556
1557 hdev->driver = hdrv;
1558 if (hdrv->probe) {
1559 ret = hdrv->probe(hdev, id);
1560 } else { /* default probe */
1561 ret = hid_parse(hdev);
1562 if (!ret)
1563 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
1564 }
1565 if (ret)
1566 hdev->driver = NULL;
1567 }
1568 return ret;
1569 }
1570
1571 static int hid_device_remove(struct device *dev)
1572 {
1573 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1574 struct hid_driver *hdrv = hdev->driver;
1575
1576 if (hdrv) {
1577 if (hdrv->remove)
1578 hdrv->remove(hdev);
1579 else /* default remove */
1580 hid_hw_stop(hdev);
1581 hdev->driver = NULL;
1582 }
1583
1584 return 0;
1585 }
1586
1587 static int hid_uevent(struct device *dev, struct kobj_uevent_env *env)
1588 {
1589 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1590
1591 if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X",
1592 hdev->bus, hdev->vendor, hdev->product))
1593 return -ENOMEM;
1594
1595 if (add_uevent_var(env, "HID_NAME=%s", hdev->name))
1596 return -ENOMEM;
1597
1598 if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys))
1599 return -ENOMEM;
1600
1601 if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq))
1602 return -ENOMEM;
1603
1604 if (add_uevent_var(env, "MODALIAS=hid:b%04Xv%08Xp%08X",
1605 hdev->bus, hdev->vendor, hdev->product))
1606 return -ENOMEM;
1607
1608 return 0;
1609 }
1610
1611 static struct bus_type hid_bus_type = {
1612 .name = "hid",
1613 .match = hid_bus_match,
1614 .probe = hid_device_probe,
1615 .remove = hid_device_remove,
1616 .uevent = hid_uevent,
1617 };
1618
1619 /* a list of devices that shouldn't be handled by HID core at all */
1620 static const struct hid_device_id hid_ignore_list[] = {
1621 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) },
1622 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) },
1623 { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) },
1624 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) },
1625 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) },
1626 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) },
1627 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) },
1628 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) },
1629 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) },
1630 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) },
1631 { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) },
1632 { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) },
1633 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)},
1634 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)},
1635 { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) },
1636 { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) },
1637 { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) },
1638 { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) },
1639 { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) },
1640 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) },
1641 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) },
1642 { HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) },
1643 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) },
1644 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
1645 { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x0004) },
1646 { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
1647 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
1648 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
1649 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) },
1650 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0003) },
1651 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) },
1652 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) },
1653 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) },
1654 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) },
1655 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) },
1656 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) },
1657 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) },
1658 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) },
1659 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) },
1660 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) },
1661 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) },
1662 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) },
1663 { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) },
1664 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) },
1665 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) },
1666 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) },
1667 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) },
1668 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) },
1669 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) },
1670 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) },
1671 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) },
1672 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) },
1673 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) },
1674 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) },
1675 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) },
1676 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) },
1677 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) },
1678 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) },
1679 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) },
1680 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) },
1681 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) },
1682 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) },
1683 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) },
1684 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) },
1685 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) },
1686 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) },
1687 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) },
1688 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) },
1689 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) },
1690 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) },
1691 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) },
1692 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) },
1693 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) },
1694 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) },
1695 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) },
1696 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) },
1697 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) },
1698 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) },
1699 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) },
1700 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) },
1701 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) },
1702 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) },
1703 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) },
1704 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) },
1705 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) },
1706 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) },
1707 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) },
1708 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) },
1709 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) },
1710 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) },
1711 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) },
1712 { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) },
1713 { HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_JESS_YUREX) },
1714 { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) },
1715 { HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) },
1716 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) },
1717 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) },
1718 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) },
1719 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) },
1720 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) },
1721 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) },
1722 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) },
1723 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) },
1724 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY1) },
1725 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) },
1726 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) },
1727 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) },
1728 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) },
1729 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) },
1730 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) },
1731 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) },
1732 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) },
1733 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) },
1734 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) },
1735 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) },
1736 { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) },
1737 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) },
1738 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) },
1739 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) },
1740 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) },
1741 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) },
1742 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) },
1743 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) },
1744 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) },
1745 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) },
1746 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) },
1747 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) },
1748 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) },
1749 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) },
1750 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
1751 { HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
1752 { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
1753 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) },
1754 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
1755 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },
1756 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) },
1757 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) },
1758 { HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) },
1759 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) },
1760 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) },
1761 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) },
1762 { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) },
1763 { }
1764 };
1765
1766 /**
1767 * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer
1768 *
1769 * There are composite devices for which we want to ignore only a certain
1770 * interface. This is a list of devices for which only the mouse interface will
1771 * be ignored. This allows a dedicated driver to take care of the interface.
1772 */
1773 static const struct hid_device_id hid_mouse_ignore_list[] = {
1774 /* appletouch driver */
1775 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1776 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1777 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1778 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1779 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1780 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1781 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1782 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1783 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1784 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1785 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1786 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1787 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1788 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
1789 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1790 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1791 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1792 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1793 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1794 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
1795 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1796 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1797 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
1798 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
1799 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
1800 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
1801 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
1802 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
1803 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
1804 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1805 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1806 { }
1807 };
1808
1809 static bool hid_ignore(struct hid_device *hdev)
1810 {
1811 switch (hdev->vendor) {
1812 case USB_VENDOR_ID_CODEMERCS:
1813 /* ignore all Code Mercenaries IOWarrior devices */
1814 if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST &&
1815 hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST)
1816 return true;
1817 break;
1818 case USB_VENDOR_ID_LOGITECH:
1819 if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST &&
1820 hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST)
1821 return true;
1822 break;
1823 case USB_VENDOR_ID_SOUNDGRAPH:
1824 if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST &&
1825 hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST)
1826 return true;
1827 break;
1828 case USB_VENDOR_ID_HANWANG:
1829 if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST &&
1830 hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST)
1831 return true;
1832 break;
1833 }
1834
1835 if (hdev->type == HID_TYPE_USBMOUSE &&
1836 hid_match_id(hdev, hid_mouse_ignore_list))
1837 return true;
1838
1839 return !!hid_match_id(hdev, hid_ignore_list);
1840 }
1841
1842 int hid_add_device(struct hid_device *hdev)
1843 {
1844 static atomic_t id = ATOMIC_INIT(0);
1845 int ret;
1846
1847 if (WARN_ON(hdev->status & HID_STAT_ADDED))
1848 return -EBUSY;
1849
1850 /* we need to kill them here, otherwise they will stay allocated to
1851 * wait for coming driver */
1852 if (!(hdev->quirks & HID_QUIRK_NO_IGNORE)
1853 && (hid_ignore(hdev) || (hdev->quirks & HID_QUIRK_IGNORE)))
1854 return -ENODEV;
1855
1856 /* XXX hack, any other cleaner solution after the driver core
1857 * is converted to allow more than 20 bytes as the device name? */
1858 dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
1859 hdev->vendor, hdev->product, atomic_inc_return(&id));
1860
1861 hid_debug_register(hdev, dev_name(&hdev->dev));
1862 ret = device_add(&hdev->dev);
1863 if (!ret)
1864 hdev->status |= HID_STAT_ADDED;
1865 else
1866 hid_debug_unregister(hdev);
1867
1868 return ret;
1869 }
1870 EXPORT_SYMBOL_GPL(hid_add_device);
1871
1872 /**
1873 * hid_allocate_device - allocate new hid device descriptor
1874 *
1875 * Allocate and initialize hid device, so that hid_destroy_device might be
1876 * used to free it.
1877 *
1878 * New hid_device pointer is returned on success, otherwise ERR_PTR encoded
1879 * error value.
1880 */
1881 struct hid_device *hid_allocate_device(void)
1882 {
1883 struct hid_device *hdev;
1884 unsigned int i;
1885 int ret = -ENOMEM;
1886
1887 hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
1888 if (hdev == NULL)
1889 return ERR_PTR(ret);
1890
1891 device_initialize(&hdev->dev);
1892 hdev->dev.release = hid_device_release;
1893 hdev->dev.bus = &hid_bus_type;
1894
1895 hdev->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS,
1896 sizeof(struct hid_collection), GFP_KERNEL);
1897 if (hdev->collection == NULL)
1898 goto err;
1899 hdev->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
1900
1901 for (i = 0; i < HID_REPORT_TYPES; i++)
1902 INIT_LIST_HEAD(&hdev->report_enum[i].report_list);
1903
1904 init_waitqueue_head(&hdev->debug_wait);
1905 INIT_LIST_HEAD(&hdev->debug_list);
1906
1907 return hdev;
1908 err:
1909 put_device(&hdev->dev);
1910 return ERR_PTR(ret);
1911 }
1912 EXPORT_SYMBOL_GPL(hid_allocate_device);
1913
1914 static void hid_remove_device(struct hid_device *hdev)
1915 {
1916 if (hdev->status & HID_STAT_ADDED) {
1917 device_del(&hdev->dev);
1918 hid_debug_unregister(hdev);
1919 hdev->status &= ~HID_STAT_ADDED;
1920 }
1921 }
1922
1923 /**
1924 * hid_destroy_device - free previously allocated device
1925 *
1926 * @hdev: hid device
1927 *
1928 * If you allocate hid_device through hid_allocate_device, you should ever
1929 * free by this function.
1930 */
1931 void hid_destroy_device(struct hid_device *hdev)
1932 {
1933 hid_remove_device(hdev);
1934 put_device(&hdev->dev);
1935 }
1936 EXPORT_SYMBOL_GPL(hid_destroy_device);
1937
1938 int __hid_register_driver(struct hid_driver *hdrv, struct module *owner,
1939 const char *mod_name)
1940 {
1941 int ret;
1942
1943 hdrv->driver.name = hdrv->name;
1944 hdrv->driver.bus = &hid_bus_type;
1945 hdrv->driver.owner = owner;
1946 hdrv->driver.mod_name = mod_name;
1947
1948 INIT_LIST_HEAD(&hdrv->dyn_list);
1949 spin_lock_init(&hdrv->dyn_lock);
1950
1951 ret = driver_register(&hdrv->driver);
1952 if (ret)
1953 return ret;
1954
1955 ret = driver_create_file(&hdrv->driver, &driver_attr_new_id);
1956 if (ret)
1957 driver_unregister(&hdrv->driver);
1958
1959 return ret;
1960 }
1961 EXPORT_SYMBOL_GPL(__hid_register_driver);
1962
1963 void hid_unregister_driver(struct hid_driver *hdrv)
1964 {
1965 driver_remove_file(&hdrv->driver, &driver_attr_new_id);
1966 driver_unregister(&hdrv->driver);
1967 hid_free_dynids(hdrv);
1968 }
1969 EXPORT_SYMBOL_GPL(hid_unregister_driver);
1970
1971 int hid_check_keys_pressed(struct hid_device *hid)
1972 {
1973 struct hid_input *hidinput;
1974 int i;
1975
1976 if (!(hid->claimed & HID_CLAIMED_INPUT))
1977 return 0;
1978
1979 list_for_each_entry(hidinput, &hid->inputs, list) {
1980 for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++)
1981 if (hidinput->input->key[i])
1982 return 1;
1983 }
1984
1985 return 0;
1986 }
1987
1988 EXPORT_SYMBOL_GPL(hid_check_keys_pressed);
1989
1990 static int __init hid_init(void)
1991 {
1992 int ret;
1993
1994 if (hid_debug)
1995 pr_warn("hid_debug is now used solely for parser and driver debugging.\n"
1996 "debugfs is now used for inspecting the device (report descriptor, reports)\n");
1997
1998 ret = bus_register(&hid_bus_type);
1999 if (ret) {
2000 pr_err("can't register hid bus\n");
2001 goto err;
2002 }
2003
2004 ret = hidraw_init();
2005 if (ret)
2006 goto err_bus;
2007
2008 hid_debug_init();
2009
2010 return 0;
2011 err_bus:
2012 bus_unregister(&hid_bus_type);
2013 err:
2014 return ret;
2015 }
2016
2017 static void __exit hid_exit(void)
2018 {
2019 hid_debug_exit();
2020 hidraw_exit();
2021 bus_unregister(&hid_bus_type);
2022 }
2023
2024 module_init(hid_init);
2025 module_exit(hid_exit);
2026
2027 MODULE_AUTHOR("Andreas Gal");
2028 MODULE_AUTHOR("Vojtech Pavlik");
2029 MODULE_AUTHOR("Jiri Kosina");
2030 MODULE_LICENSE(DRIVER_LICENSE);
2031
The kernel tree for Tao Ma.