Merge branch 'samsung/exynos5' into next/soc2
[linux-2.6.git] / drivers / hid / hid-core.c
1 /*
2  *  HID support for Linux
3  *
4  *  Copyright (c) 1999 Andreas Gal
5  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
6  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
7  *  Copyright (c) 2006-2010 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 #include <linux/semaphore.h>
33
34 #include <linux/hid.h>
35 #include <linux/hiddev.h>
36 #include <linux/hid-debug.h>
37 #include <linux/hidraw.h>
38
39 #include "hid-ids.h"
40
41 /*
42  * Version Information
43  */
44
45 #define DRIVER_DESC "HID core driver"
46 #define DRIVER_LICENSE "GPL"
47
48 int hid_debug = 0;
49 module_param_named(debug, hid_debug, int, 0600);
50 MODULE_PARM_DESC(debug, "toggle HID debugging messages");
51 EXPORT_SYMBOL_GPL(hid_debug);
52
53 /*
54  * Register a new report for a device.
55  */
56
57 struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
58 {
59         struct hid_report_enum *report_enum = device->report_enum + type;
60         struct hid_report *report;
61
62         if (report_enum->report_id_hash[id])
63                 return report_enum->report_id_hash[id];
64
65         report = kzalloc(sizeof(struct hid_report), GFP_KERNEL);
66         if (!report)
67                 return NULL;
68
69         if (id != 0)
70                 report_enum->numbered = 1;
71
72         report->id = id;
73         report->type = type;
74         report->size = 0;
75         report->device = device;
76         report_enum->report_id_hash[id] = report;
77
78         list_add_tail(&report->list, &report_enum->report_list);
79
80         return report;
81 }
82 EXPORT_SYMBOL_GPL(hid_register_report);
83
84 /*
85  * Register a new field for this report.
86  */
87
88 static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values)
89 {
90         struct hid_field *field;
91
92         if (report->maxfield == HID_MAX_FIELDS) {
93                 hid_err(report->device, "too many fields in report\n");
94                 return NULL;
95         }
96
97         field = kzalloc((sizeof(struct hid_field) +
98                          usages * sizeof(struct hid_usage) +
99                          values * sizeof(unsigned)), GFP_KERNEL);
100         if (!field)
101                 return NULL;
102
103         field->index = report->maxfield++;
104         report->field[field->index] = field;
105         field->usage = (struct hid_usage *)(field + 1);
106         field->value = (s32 *)(field->usage + usages);
107         field->report = report;
108
109         return field;
110 }
111
112 /*
113  * Open a collection. The type/usage is pushed on the stack.
114  */
115
116 static int open_collection(struct hid_parser *parser, unsigned type)
117 {
118         struct hid_collection *collection;
119         unsigned usage;
120
121         usage = parser->local.usage[0];
122
123         if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) {
124                 hid_err(parser->device, "collection stack overflow\n");
125                 return -1;
126         }
127
128         if (parser->device->maxcollection == parser->device->collection_size) {
129                 collection = kmalloc(sizeof(struct hid_collection) *
130                                 parser->device->collection_size * 2, GFP_KERNEL);
131                 if (collection == NULL) {
132                         hid_err(parser->device, "failed to reallocate collection array\n");
133                         return -1;
134                 }
135                 memcpy(collection, parser->device->collection,
136                         sizeof(struct hid_collection) *
137                         parser->device->collection_size);
138                 memset(collection + parser->device->collection_size, 0,
139                         sizeof(struct hid_collection) *
140                         parser->device->collection_size);
141                 kfree(parser->device->collection);
142                 parser->device->collection = collection;
143                 parser->device->collection_size *= 2;
144         }
145
146         parser->collection_stack[parser->collection_stack_ptr++] =
147                 parser->device->maxcollection;
148
149         collection = parser->device->collection +
150                 parser->device->maxcollection++;
151         collection->type = type;
152         collection->usage = usage;
153         collection->level = parser->collection_stack_ptr - 1;
154
155         if (type == HID_COLLECTION_APPLICATION)
156                 parser->device->maxapplication++;
157
158         return 0;
159 }
160
161 /*
162  * Close a collection.
163  */
164
165 static int close_collection(struct hid_parser *parser)
166 {
167         if (!parser->collection_stack_ptr) {
168                 hid_err(parser->device, "collection stack underflow\n");
169                 return -1;
170         }
171         parser->collection_stack_ptr--;
172         return 0;
173 }
174
175 /*
176  * Climb up the stack, search for the specified collection type
177  * and return the usage.
178  */
179
180 static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type)
181 {
182         struct hid_collection *collection = parser->device->collection;
183         int n;
184
185         for (n = parser->collection_stack_ptr - 1; n >= 0; n--) {
186                 unsigned index = parser->collection_stack[n];
187                 if (collection[index].type == type)
188                         return collection[index].usage;
189         }
190         return 0; /* we know nothing about this usage type */
191 }
192
193 /*
194  * Add a usage to the temporary parser table.
195  */
196
197 static int hid_add_usage(struct hid_parser *parser, unsigned usage)
198 {
199         if (parser->local.usage_index >= HID_MAX_USAGES) {
200                 hid_err(parser->device, "usage index exceeded\n");
201                 return -1;
202         }
203         parser->local.usage[parser->local.usage_index] = usage;
204         parser->local.collection_index[parser->local.usage_index] =
205                 parser->collection_stack_ptr ?
206                 parser->collection_stack[parser->collection_stack_ptr - 1] : 0;
207         parser->local.usage_index++;
208         return 0;
209 }
210
211 /*
212  * Register a new field for this report.
213  */
214
215 static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags)
216 {
217         struct hid_report *report;
218         struct hid_field *field;
219         int usages;
220         unsigned offset;
221         int i;
222
223         report = hid_register_report(parser->device, report_type, parser->global.report_id);
224         if (!report) {
225                 hid_err(parser->device, "hid_register_report failed\n");
226                 return -1;
227         }
228
229         if (parser->global.logical_maximum < parser->global.logical_minimum) {
230                 hid_err(parser->device, "logical range invalid %d %d\n",
231                                 parser->global.logical_minimum, parser->global.logical_maximum);
232                 return -1;
233         }
234
235         offset = report->size;
236         report->size += parser->global.report_size * parser->global.report_count;
237
238         if (!parser->local.usage_index) /* Ignore padding fields */
239                 return 0;
240
241         usages = max_t(int, parser->local.usage_index, parser->global.report_count);
242
243         field = hid_register_field(report, usages, parser->global.report_count);
244         if (!field)
245                 return 0;
246
247         field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
248         field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
249         field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
250
251         for (i = 0; i < usages; i++) {
252                 int j = i;
253                 /* Duplicate the last usage we parsed if we have excess values */
254                 if (i >= parser->local.usage_index)
255                         j = parser->local.usage_index - 1;
256                 field->usage[i].hid = parser->local.usage[j];
257                 field->usage[i].collection_index =
258                         parser->local.collection_index[j];
259         }
260
261         field->maxusage = usages;
262         field->flags = flags;
263         field->report_offset = offset;
264         field->report_type = report_type;
265         field->report_size = parser->global.report_size;
266         field->report_count = parser->global.report_count;
267         field->logical_minimum = parser->global.logical_minimum;
268         field->logical_maximum = parser->global.logical_maximum;
269         field->physical_minimum = parser->global.physical_minimum;
270         field->physical_maximum = parser->global.physical_maximum;
271         field->unit_exponent = parser->global.unit_exponent;
272         field->unit = parser->global.unit;
273
274         return 0;
275 }
276
277 /*
278  * Read data value from item.
279  */
280
281 static u32 item_udata(struct hid_item *item)
282 {
283         switch (item->size) {
284         case 1: return item->data.u8;
285         case 2: return item->data.u16;
286         case 4: return item->data.u32;
287         }
288         return 0;
289 }
290
291 static s32 item_sdata(struct hid_item *item)
292 {
293         switch (item->size) {
294         case 1: return item->data.s8;
295         case 2: return item->data.s16;
296         case 4: return item->data.s32;
297         }
298         return 0;
299 }
300
301 /*
302  * Process a global item.
303  */
304
305 static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
306 {
307         switch (item->tag) {
308         case HID_GLOBAL_ITEM_TAG_PUSH:
309
310                 if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
311                         hid_err(parser->device, "global environment stack overflow\n");
312                         return -1;
313                 }
314
315                 memcpy(parser->global_stack + parser->global_stack_ptr++,
316                         &parser->global, sizeof(struct hid_global));
317                 return 0;
318
319         case HID_GLOBAL_ITEM_TAG_POP:
320
321                 if (!parser->global_stack_ptr) {
322                         hid_err(parser->device, "global environment stack underflow\n");
323                         return -1;
324                 }
325
326                 memcpy(&parser->global, parser->global_stack +
327                         --parser->global_stack_ptr, sizeof(struct hid_global));
328                 return 0;
329
330         case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
331                 parser->global.usage_page = item_udata(item);
332                 return 0;
333
334         case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
335                 parser->global.logical_minimum = item_sdata(item);
336                 return 0;
337
338         case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
339                 if (parser->global.logical_minimum < 0)
340                         parser->global.logical_maximum = item_sdata(item);
341                 else
342                         parser->global.logical_maximum = item_udata(item);
343                 return 0;
344
345         case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
346                 parser->global.physical_minimum = item_sdata(item);
347                 return 0;
348
349         case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
350                 if (parser->global.physical_minimum < 0)
351                         parser->global.physical_maximum = item_sdata(item);
352                 else
353                         parser->global.physical_maximum = item_udata(item);
354                 return 0;
355
356         case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
357                 parser->global.unit_exponent = item_sdata(item);
358                 return 0;
359
360         case HID_GLOBAL_ITEM_TAG_UNIT:
361                 parser->global.unit = item_udata(item);
362                 return 0;
363
364         case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
365                 parser->global.report_size = item_udata(item);
366                 if (parser->global.report_size > 96) {
367                         hid_err(parser->device, "invalid report_size %d\n",
368                                         parser->global.report_size);
369                         return -1;
370                 }
371                 return 0;
372
373         case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
374                 parser->global.report_count = item_udata(item);
375                 if (parser->global.report_count > HID_MAX_USAGES) {
376                         hid_err(parser->device, "invalid report_count %d\n",
377                                         parser->global.report_count);
378                         return -1;
379                 }
380                 return 0;
381
382         case HID_GLOBAL_ITEM_TAG_REPORT_ID:
383                 parser->global.report_id = item_udata(item);
384                 if (parser->global.report_id == 0) {
385                         hid_err(parser->device, "report_id 0 is invalid\n");
386                         return -1;
387                 }
388                 return 0;
389
390         default:
391                 hid_err(parser->device, "unknown global tag 0x%x\n", item->tag);
392                 return -1;
393         }
394 }
395
396 /*
397  * Process a local item.
398  */
399
400 static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
401 {
402         __u32 data;
403         unsigned n;
404
405         data = item_udata(item);
406
407         switch (item->tag) {
408         case HID_LOCAL_ITEM_TAG_DELIMITER:
409
410                 if (data) {
411                         /*
412                          * We treat items before the first delimiter
413                          * as global to all usage sets (branch 0).
414                          * In the moment we process only these global
415                          * items and the first delimiter set.
416                          */
417                         if (parser->local.delimiter_depth != 0) {
418                                 hid_err(parser->device, "nested delimiters\n");
419                                 return -1;
420                         }
421                         parser->local.delimiter_depth++;
422                         parser->local.delimiter_branch++;
423                 } else {
424                         if (parser->local.delimiter_depth < 1) {
425                                 hid_err(parser->device, "bogus close delimiter\n");
426                                 return -1;
427                         }
428                         parser->local.delimiter_depth--;
429                 }
430                 return 1;
431
432         case HID_LOCAL_ITEM_TAG_USAGE:
433
434                 if (parser->local.delimiter_branch > 1) {
435                         dbg_hid("alternative usage ignored\n");
436                         return 0;
437                 }
438
439                 if (item->size <= 2)
440                         data = (parser->global.usage_page << 16) + data;
441
442                 return hid_add_usage(parser, data);
443
444         case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
445
446                 if (parser->local.delimiter_branch > 1) {
447                         dbg_hid("alternative usage ignored\n");
448                         return 0;
449                 }
450
451                 if (item->size <= 2)
452                         data = (parser->global.usage_page << 16) + data;
453
454                 parser->local.usage_minimum = data;
455                 return 0;
456
457         case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
458
459                 if (parser->local.delimiter_branch > 1) {
460                         dbg_hid("alternative usage ignored\n");
461                         return 0;
462                 }
463
464                 if (item->size <= 2)
465                         data = (parser->global.usage_page << 16) + data;
466
467                 for (n = parser->local.usage_minimum; n <= data; n++)
468                         if (hid_add_usage(parser, n)) {
469                                 dbg_hid("hid_add_usage failed\n");
470                                 return -1;
471                         }
472                 return 0;
473
474         default:
475
476                 dbg_hid("unknown local item tag 0x%x\n", item->tag);
477                 return 0;
478         }
479         return 0;
480 }
481
482 /*
483  * Process a main item.
484  */
485
486 static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
487 {
488         __u32 data;
489         int ret;
490
491         data = item_udata(item);
492
493         switch (item->tag) {
494         case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
495                 ret = open_collection(parser, data & 0xff);
496                 break;
497         case HID_MAIN_ITEM_TAG_END_COLLECTION:
498                 ret = close_collection(parser);
499                 break;
500         case HID_MAIN_ITEM_TAG_INPUT:
501                 ret = hid_add_field(parser, HID_INPUT_REPORT, data);
502                 break;
503         case HID_MAIN_ITEM_TAG_OUTPUT:
504                 ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
505                 break;
506         case HID_MAIN_ITEM_TAG_FEATURE:
507                 ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
508                 break;
509         default:
510                 hid_err(parser->device, "unknown main item tag 0x%x\n", item->tag);
511                 ret = 0;
512         }
513
514         memset(&parser->local, 0, sizeof(parser->local));       /* Reset the local parser environment */
515
516         return ret;
517 }
518
519 /*
520  * Process a reserved item.
521  */
522
523 static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
524 {
525         dbg_hid("reserved item type, tag 0x%x\n", item->tag);
526         return 0;
527 }
528
529 /*
530  * Free a report and all registered fields. The field->usage and
531  * field->value table's are allocated behind the field, so we need
532  * only to free(field) itself.
533  */
534
535 static void hid_free_report(struct hid_report *report)
536 {
537         unsigned n;
538
539         for (n = 0; n < report->maxfield; n++)
540                 kfree(report->field[n]);
541         kfree(report);
542 }
543
544 /*
545  * Free a device structure, all reports, and all fields.
546  */
547
548 static void hid_device_release(struct device *dev)
549 {
550         struct hid_device *device = container_of(dev, struct hid_device, dev);
551         unsigned i, j;
552
553         for (i = 0; i < HID_REPORT_TYPES; i++) {
554                 struct hid_report_enum *report_enum = device->report_enum + i;
555
556                 for (j = 0; j < 256; j++) {
557                         struct hid_report *report = report_enum->report_id_hash[j];
558                         if (report)
559                                 hid_free_report(report);
560                 }
561         }
562
563         kfree(device->rdesc);
564         kfree(device->collection);
565         kfree(device);
566 }
567
568 /*
569  * Fetch a report description item from the data stream. We support long
570  * items, though they are not used yet.
571  */
572
573 static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
574 {
575         u8 b;
576
577         if ((end - start) <= 0)
578                 return NULL;
579
580         b = *start++;
581
582         item->type = (b >> 2) & 3;
583         item->tag  = (b >> 4) & 15;
584
585         if (item->tag == HID_ITEM_TAG_LONG) {
586
587                 item->format = HID_ITEM_FORMAT_LONG;
588
589                 if ((end - start) < 2)
590                         return NULL;
591
592                 item->size = *start++;
593                 item->tag  = *start++;
594
595                 if ((end - start) < item->size)
596                         return NULL;
597
598                 item->data.longdata = start;
599                 start += item->size;
600                 return start;
601         }
602
603         item->format = HID_ITEM_FORMAT_SHORT;
604         item->size = b & 3;
605
606         switch (item->size) {
607         case 0:
608                 return start;
609
610         case 1:
611                 if ((end - start) < 1)
612                         return NULL;
613                 item->data.u8 = *start++;
614                 return start;
615
616         case 2:
617                 if ((end - start) < 2)
618                         return NULL;
619                 item->data.u16 = get_unaligned_le16(start);
620                 start = (__u8 *)((__le16 *)start + 1);
621                 return start;
622
623         case 3:
624                 item->size++;
625                 if ((end - start) < 4)
626                         return NULL;
627                 item->data.u32 = get_unaligned_le32(start);
628                 start = (__u8 *)((__le32 *)start + 1);
629                 return start;
630         }
631
632         return NULL;
633 }
634
635 /**
636  * hid_parse_report - parse device report
637  *
638  * @device: hid device
639  * @start: report start
640  * @size: report size
641  *
642  * Parse a report description into a hid_device structure. Reports are
643  * enumerated, fields are attached to these reports.
644  * 0 returned on success, otherwise nonzero error value.
645  */
646 int hid_parse_report(struct hid_device *device, __u8 *start,
647                 unsigned size)
648 {
649         struct hid_parser *parser;
650         struct hid_item item;
651         __u8 *end;
652         int ret;
653         static int (*dispatch_type[])(struct hid_parser *parser,
654                                       struct hid_item *item) = {
655                 hid_parser_main,
656                 hid_parser_global,
657                 hid_parser_local,
658                 hid_parser_reserved
659         };
660
661         if (device->driver->report_fixup)
662                 start = device->driver->report_fixup(device, start, &size);
663
664         device->rdesc = kmemdup(start, size, GFP_KERNEL);
665         if (device->rdesc == NULL)
666                 return -ENOMEM;
667         device->rsize = size;
668
669         parser = vzalloc(sizeof(struct hid_parser));
670         if (!parser) {
671                 ret = -ENOMEM;
672                 goto err;
673         }
674
675         parser->device = device;
676
677         end = start + size;
678         ret = -EINVAL;
679         while ((start = fetch_item(start, end, &item)) != NULL) {
680
681                 if (item.format != HID_ITEM_FORMAT_SHORT) {
682                         hid_err(device, "unexpected long global item\n");
683                         goto err;
684                 }
685
686                 if (dispatch_type[item.type](parser, &item)) {
687                         hid_err(device, "item %u %u %u %u parsing failed\n",
688                                 item.format, (unsigned)item.size,
689                                 (unsigned)item.type, (unsigned)item.tag);
690                         goto err;
691                 }
692
693                 if (start == end) {
694                         if (parser->collection_stack_ptr) {
695                                 hid_err(device, "unbalanced collection at end of report description\n");
696                                 goto err;
697                         }
698                         if (parser->local.delimiter_depth) {
699                                 hid_err(device, "unbalanced delimiter at end of report description\n");
700                                 goto err;
701                         }
702                         vfree(parser);
703                         return 0;
704                 }
705         }
706
707         hid_err(device, "item fetching failed at offset %d\n", (int)(end - start));
708 err:
709         vfree(parser);
710         return ret;
711 }
712 EXPORT_SYMBOL_GPL(hid_parse_report);
713
714 /*
715  * Convert a signed n-bit integer to signed 32-bit integer. Common
716  * cases are done through the compiler, the screwed things has to be
717  * done by hand.
718  */
719
720 static s32 snto32(__u32 value, unsigned n)
721 {
722         switch (n) {
723         case 8:  return ((__s8)value);
724         case 16: return ((__s16)value);
725         case 32: return ((__s32)value);
726         }
727         return value & (1 << (n - 1)) ? value | (-1 << n) : value;
728 }
729
730 /*
731  * Convert a signed 32-bit integer to a signed n-bit integer.
732  */
733
734 static u32 s32ton(__s32 value, unsigned n)
735 {
736         s32 a = value >> (n - 1);
737         if (a && a != -1)
738                 return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
739         return value & ((1 << n) - 1);
740 }
741
742 /*
743  * Extract/implement a data field from/to a little endian report (bit array).
744  *
745  * Code sort-of follows HID spec:
746  *     http://www.usb.org/developers/devclass_docs/HID1_11.pdf
747  *
748  * While the USB HID spec allows unlimited length bit fields in "report
749  * descriptors", most devices never use more than 16 bits.
750  * One model of UPS is claimed to report "LINEV" as a 32-bit field.
751  * Search linux-kernel and linux-usb-devel archives for "hid-core extract".
752  */
753
754 static __u32 extract(const struct hid_device *hid, __u8 *report,
755                      unsigned offset, unsigned n)
756 {
757         u64 x;
758
759         if (n > 32)
760                 hid_warn(hid, "extract() called with n (%d) > 32! (%s)\n",
761                          n, current->comm);
762
763         report += offset >> 3;  /* adjust byte index */
764         offset &= 7;            /* now only need bit offset into one byte */
765         x = get_unaligned_le64(report);
766         x = (x >> offset) & ((1ULL << n) - 1);  /* extract bit field */
767         return (u32) x;
768 }
769
770 /*
771  * "implement" : set bits in a little endian bit stream.
772  * Same concepts as "extract" (see comments above).
773  * The data mangled in the bit stream remains in little endian
774  * order the whole time. It make more sense to talk about
775  * endianness of register values by considering a register
776  * a "cached" copy of the little endiad bit stream.
777  */
778 static void implement(const struct hid_device *hid, __u8 *report,
779                       unsigned offset, unsigned n, __u32 value)
780 {
781         u64 x;
782         u64 m = (1ULL << n) - 1;
783
784         if (n > 32)
785                 hid_warn(hid, "%s() called with n (%d) > 32! (%s)\n",
786                          __func__, n, current->comm);
787
788         if (value > m)
789                 hid_warn(hid, "%s() called with too large value %d! (%s)\n",
790                          __func__, value, current->comm);
791         WARN_ON(value > m);
792         value &= m;
793
794         report += offset >> 3;
795         offset &= 7;
796
797         x = get_unaligned_le64(report);
798         x &= ~(m << offset);
799         x |= ((u64)value) << offset;
800         put_unaligned_le64(x, report);
801 }
802
803 /*
804  * Search an array for a value.
805  */
806
807 static int search(__s32 *array, __s32 value, unsigned n)
808 {
809         while (n--) {
810                 if (*array++ == value)
811                         return 0;
812         }
813         return -1;
814 }
815
816 /**
817  * hid_match_report - check if driver's raw_event should be called
818  *
819  * @hid: hid device
820  * @report_type: type to match against
821  *
822  * compare hid->driver->report_table->report_type to report->type
823  */
824 static int hid_match_report(struct hid_device *hid, struct hid_report *report)
825 {
826         const struct hid_report_id *id = hid->driver->report_table;
827
828         if (!id) /* NULL means all */
829                 return 1;
830
831         for (; id->report_type != HID_TERMINATOR; id++)
832                 if (id->report_type == HID_ANY_ID ||
833                                 id->report_type == report->type)
834                         return 1;
835         return 0;
836 }
837
838 /**
839  * hid_match_usage - check if driver's event should be called
840  *
841  * @hid: hid device
842  * @usage: usage to match against
843  *
844  * compare hid->driver->usage_table->usage_{type,code} to
845  * usage->usage_{type,code}
846  */
847 static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage)
848 {
849         const struct hid_usage_id *id = hid->driver->usage_table;
850
851         if (!id) /* NULL means all */
852                 return 1;
853
854         for (; id->usage_type != HID_ANY_ID - 1; id++)
855                 if ((id->usage_hid == HID_ANY_ID ||
856                                 id->usage_hid == usage->hid) &&
857                                 (id->usage_type == HID_ANY_ID ||
858                                 id->usage_type == usage->type) &&
859                                 (id->usage_code == HID_ANY_ID ||
860                                  id->usage_code == usage->code))
861                         return 1;
862         return 0;
863 }
864
865 static void hid_process_event(struct hid_device *hid, struct hid_field *field,
866                 struct hid_usage *usage, __s32 value, int interrupt)
867 {
868         struct hid_driver *hdrv = hid->driver;
869         int ret;
870
871         hid_dump_input(hid, usage, value);
872
873         if (hdrv && hdrv->event && hid_match_usage(hid, usage)) {
874                 ret = hdrv->event(hid, field, usage, value);
875                 if (ret != 0) {
876                         if (ret < 0)
877                                 hid_err(hid, "%s's event failed with %d\n",
878                                                 hdrv->name, ret);
879                         return;
880                 }
881         }
882
883         if (hid->claimed & HID_CLAIMED_INPUT)
884                 hidinput_hid_event(hid, field, usage, value);
885         if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event)
886                 hid->hiddev_hid_event(hid, field, usage, value);
887 }
888
889 /*
890  * Analyse a received field, and fetch the data from it. The field
891  * content is stored for next report processing (we do differential
892  * reporting to the layer).
893  */
894
895 static void hid_input_field(struct hid_device *hid, struct hid_field *field,
896                             __u8 *data, int interrupt)
897 {
898         unsigned n;
899         unsigned count = field->report_count;
900         unsigned offset = field->report_offset;
901         unsigned size = field->report_size;
902         __s32 min = field->logical_minimum;
903         __s32 max = field->logical_maximum;
904         __s32 *value;
905
906         value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC);
907         if (!value)
908                 return;
909
910         for (n = 0; n < count; n++) {
911
912                 value[n] = min < 0 ?
913                         snto32(extract(hid, data, offset + n * size, size),
914                                size) :
915                         extract(hid, data, offset + n * size, size);
916
917                 /* Ignore report if ErrorRollOver */
918                 if (!(field->flags & HID_MAIN_ITEM_VARIABLE) &&
919                     value[n] >= min && value[n] <= max &&
920                     field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
921                         goto exit;
922         }
923
924         for (n = 0; n < count; n++) {
925
926                 if (HID_MAIN_ITEM_VARIABLE & field->flags) {
927                         hid_process_event(hid, field, &field->usage[n], value[n], interrupt);
928                         continue;
929                 }
930
931                 if (field->value[n] >= min && field->value[n] <= max
932                         && field->usage[field->value[n] - min].hid
933                         && search(value, field->value[n], count))
934                                 hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt);
935
936                 if (value[n] >= min && value[n] <= max
937                         && field->usage[value[n] - min].hid
938                         && search(field->value, value[n], count))
939                                 hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt);
940         }
941
942         memcpy(field->value, value, count * sizeof(__s32));
943 exit:
944         kfree(value);
945 }
946
947 /*
948  * Output the field into the report.
949  */
950
951 static void hid_output_field(const struct hid_device *hid,
952                              struct hid_field *field, __u8 *data)
953 {
954         unsigned count = field->report_count;
955         unsigned offset = field->report_offset;
956         unsigned size = field->report_size;
957         unsigned n;
958
959         for (n = 0; n < count; n++) {
960                 if (field->logical_minimum < 0) /* signed values */
961                         implement(hid, data, offset + n * size, size,
962                                   s32ton(field->value[n], size));
963                 else                            /* unsigned values */
964                         implement(hid, data, offset + n * size, size,
965                                   field->value[n]);
966         }
967 }
968
969 /*
970  * Create a report.
971  */
972
973 void hid_output_report(struct hid_report *report, __u8 *data)
974 {
975         unsigned n;
976
977         if (report->id > 0)
978                 *data++ = report->id;
979
980         memset(data, 0, ((report->size - 1) >> 3) + 1);
981         for (n = 0; n < report->maxfield; n++)
982                 hid_output_field(report->device, report->field[n], data);
983 }
984 EXPORT_SYMBOL_GPL(hid_output_report);
985
986 /*
987  * Set a field value. The report this field belongs to has to be
988  * created and transferred to the device, to set this value in the
989  * device.
990  */
991
992 int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
993 {
994         unsigned size = field->report_size;
995
996         hid_dump_input(field->report->device, field->usage + offset, value);
997
998         if (offset >= field->report_count) {
999                 hid_err(field->report->device, "offset (%d) exceeds report_count (%d)\n",
1000                                 offset, field->report_count);
1001                 return -1;
1002         }
1003         if (field->logical_minimum < 0) {
1004                 if (value != snto32(s32ton(value, size), size)) {
1005                         hid_err(field->report->device, "value %d is out of range\n", value);
1006                         return -1;
1007                 }
1008         }
1009         field->value[offset] = value;
1010         return 0;
1011 }
1012 EXPORT_SYMBOL_GPL(hid_set_field);
1013
1014 static struct hid_report *hid_get_report(struct hid_report_enum *report_enum,
1015                 const u8 *data)
1016 {
1017         struct hid_report *report;
1018         unsigned int n = 0;     /* Normally report number is 0 */
1019
1020         /* Device uses numbered reports, data[0] is report number */
1021         if (report_enum->numbered)
1022                 n = *data;
1023
1024         report = report_enum->report_id_hash[n];
1025         if (report == NULL)
1026                 dbg_hid("undefined report_id %u received\n", n);
1027
1028         return report;
1029 }
1030
1031 void hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
1032                 int interrupt)
1033 {
1034         struct hid_report_enum *report_enum = hid->report_enum + type;
1035         struct hid_report *report;
1036         unsigned int a;
1037         int rsize, csize = size;
1038         u8 *cdata = data;
1039
1040         report = hid_get_report(report_enum, data);
1041         if (!report)
1042                 return;
1043
1044         if (report_enum->numbered) {
1045                 cdata++;
1046                 csize--;
1047         }
1048
1049         rsize = ((report->size - 1) >> 3) + 1;
1050
1051         if (rsize > HID_MAX_BUFFER_SIZE)
1052                 rsize = HID_MAX_BUFFER_SIZE;
1053
1054         if (csize < rsize) {
1055                 dbg_hid("report %d is too short, (%d < %d)\n", report->id,
1056                                 csize, rsize);
1057                 memset(cdata + csize, 0, rsize - csize);
1058         }
1059
1060         if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event)
1061                 hid->hiddev_report_event(hid, report);
1062         if (hid->claimed & HID_CLAIMED_HIDRAW)
1063                 hidraw_report_event(hid, data, size);
1064
1065         for (a = 0; a < report->maxfield; a++)
1066                 hid_input_field(hid, report->field[a], cdata, interrupt);
1067
1068         if (hid->claimed & HID_CLAIMED_INPUT)
1069                 hidinput_report_event(hid, report);
1070 }
1071 EXPORT_SYMBOL_GPL(hid_report_raw_event);
1072
1073 /**
1074  * hid_input_report - report data from lower layer (usb, bt...)
1075  *
1076  * @hid: hid device
1077  * @type: HID report type (HID_*_REPORT)
1078  * @data: report contents
1079  * @size: size of data parameter
1080  * @interrupt: distinguish between interrupt and control transfers
1081  *
1082  * This is data entry for lower layers.
1083  */
1084 int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt)
1085 {
1086         struct hid_report_enum *report_enum;
1087         struct hid_driver *hdrv;
1088         struct hid_report *report;
1089         char *buf;
1090         unsigned int i;
1091         int ret = 0;
1092
1093         if (!hid)
1094                 return -ENODEV;
1095
1096         if (down_trylock(&hid->driver_lock))
1097                 return -EBUSY;
1098
1099         if (!hid->driver) {
1100                 ret = -ENODEV;
1101                 goto unlock;
1102         }
1103         report_enum = hid->report_enum + type;
1104         hdrv = hid->driver;
1105
1106         if (!size) {
1107                 dbg_hid("empty report\n");
1108                 ret = -1;
1109                 goto unlock;
1110         }
1111
1112         buf = kmalloc(sizeof(char) * HID_DEBUG_BUFSIZE, GFP_ATOMIC);
1113
1114         if (!buf)
1115                 goto nomem;
1116
1117         /* dump the report */
1118         snprintf(buf, HID_DEBUG_BUFSIZE - 1,
1119                         "\nreport (size %u) (%snumbered) = ", size, report_enum->numbered ? "" : "un");
1120         hid_debug_event(hid, buf);
1121
1122         for (i = 0; i < size; i++) {
1123                 snprintf(buf, HID_DEBUG_BUFSIZE - 1,
1124                                 " %02x", data[i]);
1125                 hid_debug_event(hid, buf);
1126         }
1127         hid_debug_event(hid, "\n");
1128         kfree(buf);
1129
1130 nomem:
1131         report = hid_get_report(report_enum, data);
1132
1133         if (!report) {
1134                 ret = -1;
1135                 goto unlock;
1136         }
1137
1138         if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) {
1139                 ret = hdrv->raw_event(hid, report, data, size);
1140                 if (ret != 0) {
1141                         ret = ret < 0 ? ret : 0;
1142                         goto unlock;
1143                 }
1144         }
1145
1146         hid_report_raw_event(hid, type, data, size, interrupt);
1147
1148 unlock:
1149         up(&hid->driver_lock);
1150         return ret;
1151 }
1152 EXPORT_SYMBOL_GPL(hid_input_report);
1153
1154 static bool hid_match_one_id(struct hid_device *hdev,
1155                 const struct hid_device_id *id)
1156 {
1157         return id->bus == hdev->bus &&
1158                 (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) &&
1159                 (id->product == HID_ANY_ID || id->product == hdev->product);
1160 }
1161
1162 const struct hid_device_id *hid_match_id(struct hid_device *hdev,
1163                 const struct hid_device_id *id)
1164 {
1165         for (; id->bus; id++)
1166                 if (hid_match_one_id(hdev, id))
1167                         return id;
1168
1169         return NULL;
1170 }
1171
1172 static const struct hid_device_id hid_hiddev_list[] = {
1173         { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) },
1174         { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) },
1175         { }
1176 };
1177
1178 static bool hid_hiddev(struct hid_device *hdev)
1179 {
1180         return !!hid_match_id(hdev, hid_hiddev_list);
1181 }
1182
1183
1184 static ssize_t
1185 read_report_descriptor(struct file *filp, struct kobject *kobj,
1186                 struct bin_attribute *attr,
1187                 char *buf, loff_t off, size_t count)
1188 {
1189         struct device *dev = container_of(kobj, struct device, kobj);
1190         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1191
1192         if (off >= hdev->rsize)
1193                 return 0;
1194
1195         if (off + count > hdev->rsize)
1196                 count = hdev->rsize - off;
1197
1198         memcpy(buf, hdev->rdesc + off, count);
1199
1200         return count;
1201 }
1202
1203 static struct bin_attribute dev_bin_attr_report_desc = {
1204         .attr = { .name = "report_descriptor", .mode = 0444 },
1205         .read = read_report_descriptor,
1206         .size = HID_MAX_DESCRIPTOR_SIZE,
1207 };
1208
1209 int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
1210 {
1211         static const char *types[] = { "Device", "Pointer", "Mouse", "Device",
1212                 "Joystick", "Gamepad", "Keyboard", "Keypad",
1213                 "Multi-Axis Controller"
1214         };
1215         const char *type, *bus;
1216         char buf[64];
1217         unsigned int i;
1218         int len;
1219         int ret;
1220
1221         if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE)
1222                 connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV);
1223         if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE)
1224                 connect_mask |= HID_CONNECT_HIDINPUT_FORCE;
1225         if (hdev->bus != BUS_USB)
1226                 connect_mask &= ~HID_CONNECT_HIDDEV;
1227         if (hid_hiddev(hdev))
1228                 connect_mask |= HID_CONNECT_HIDDEV_FORCE;
1229
1230         if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,
1231                                 connect_mask & HID_CONNECT_HIDINPUT_FORCE))
1232                 hdev->claimed |= HID_CLAIMED_INPUT;
1233         if (hdev->quirks & HID_QUIRK_MULTITOUCH) {
1234                 /* this device should be handled by hid-multitouch, skip it */
1235                 hdev->quirks &= ~HID_QUIRK_MULTITOUCH;
1236                 return -ENODEV;
1237         }
1238
1239         if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect &&
1240                         !hdev->hiddev_connect(hdev,
1241                                 connect_mask & HID_CONNECT_HIDDEV_FORCE))
1242                 hdev->claimed |= HID_CLAIMED_HIDDEV;
1243         if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev))
1244                 hdev->claimed |= HID_CLAIMED_HIDRAW;
1245
1246         if (!hdev->claimed) {
1247                 hid_err(hdev, "claimed by neither input, hiddev nor hidraw\n");
1248                 return -ENODEV;
1249         }
1250
1251         if ((hdev->claimed & HID_CLAIMED_INPUT) &&
1252                         (connect_mask & HID_CONNECT_FF) && hdev->ff_init)
1253                 hdev->ff_init(hdev);
1254
1255         len = 0;
1256         if (hdev->claimed & HID_CLAIMED_INPUT)
1257                 len += sprintf(buf + len, "input");
1258         if (hdev->claimed & HID_CLAIMED_HIDDEV)
1259                 len += sprintf(buf + len, "%shiddev%d", len ? "," : "",
1260                                 hdev->minor);
1261         if (hdev->claimed & HID_CLAIMED_HIDRAW)
1262                 len += sprintf(buf + len, "%shidraw%d", len ? "," : "",
1263                                 ((struct hidraw *)hdev->hidraw)->minor);
1264
1265         type = "Device";
1266         for (i = 0; i < hdev->maxcollection; i++) {
1267                 struct hid_collection *col = &hdev->collection[i];
1268                 if (col->type == HID_COLLECTION_APPLICATION &&
1269                    (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
1270                    (col->usage & 0xffff) < ARRAY_SIZE(types)) {
1271                         type = types[col->usage & 0xffff];
1272                         break;
1273                 }
1274         }
1275
1276         switch (hdev->bus) {
1277         case BUS_USB:
1278                 bus = "USB";
1279                 break;
1280         case BUS_BLUETOOTH:
1281                 bus = "BLUETOOTH";
1282                 break;
1283         default:
1284                 bus = "<UNKNOWN>";
1285         }
1286
1287         ret = device_create_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1288         if (ret)
1289                 hid_warn(hdev,
1290                          "can't create sysfs report descriptor attribute err: %d\n", ret);
1291
1292         hid_info(hdev, "%s: %s HID v%x.%02x %s [%s] on %s\n",
1293                  buf, bus, hdev->version >> 8, hdev->version & 0xff,
1294                  type, hdev->name, hdev->phys);
1295
1296         return 0;
1297 }
1298 EXPORT_SYMBOL_GPL(hid_connect);
1299
1300 void hid_disconnect(struct hid_device *hdev)
1301 {
1302         device_remove_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1303         if (hdev->claimed & HID_CLAIMED_INPUT)
1304                 hidinput_disconnect(hdev);
1305         if (hdev->claimed & HID_CLAIMED_HIDDEV)
1306                 hdev->hiddev_disconnect(hdev);
1307         if (hdev->claimed & HID_CLAIMED_HIDRAW)
1308                 hidraw_disconnect(hdev);
1309 }
1310 EXPORT_SYMBOL_GPL(hid_disconnect);
1311
1312 /* a list of devices for which there is a specialized driver on HID bus */
1313 static const struct hid_device_id hid_have_special_driver[] = {
1314         { HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M1968) },
1315         { HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M2256) },
1316         { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
1317         { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
1318         { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) },
1319         { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) },
1320         { HID_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR, USB_DEVICE_ID_ACTIONSTAR_1011) },
1321         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ATV_IRCONTROL) },
1322         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
1323         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
1324         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
1325         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) },
1326         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1327         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1328         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1329         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1330         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1331         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1332         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1333         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1334         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1335         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1336         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1337         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) },
1338         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) },
1339         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) },
1340         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) },
1341         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) },
1342         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) },
1343         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1344         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1345         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
1346         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) },
1347         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) },
1348         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) },
1349         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1350         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1351         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1352         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1353         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1354         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
1355         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1356         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1357         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
1358         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
1359         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
1360         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
1361         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
1362         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
1363         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
1364         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
1365         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
1366         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
1367         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
1368         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
1369         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
1370         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ANSI) },
1371         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ISO) },
1372         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_JIS) },
1373         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
1374         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
1375         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
1376         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
1377         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
1378         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
1379         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) },
1380         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) },
1381         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) },
1382         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO) },
1383         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1384         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1385         { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_T91MT) },
1386         { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
1387         { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
1388         { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
1389         { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
1390         { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
1391         { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
1392         { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) },
1393         { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
1394         { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
1395         { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
1396         { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
1397         { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
1398         { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS) },
1399         { HID_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT, USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },
1400         { HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) },
1401         { HID_USB_DEVICE(USB_VENDOR_ID_CVTOUCH, USB_DEVICE_ID_CVTOUCH_SCREEN) },
1402         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) },
1403         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) },
1404         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) },
1405         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
1406         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
1407         { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
1408         { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011) },
1409         { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) },
1410         { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) },
1411         { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) },
1412         { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) },
1413         { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) },
1414         { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) },
1415         { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
1416         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
1417         { HID_USB_DEVICE(USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2515) },
1418         { HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) },
1419         { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
1420         { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) },
1421         { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) },
1422         { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
1423         { HID_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH, USB_DEVICE_ID_GOODTOUCH_000f) },
1424         { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) },
1425         { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) },
1426         { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
1427         { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
1428         { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
1429         { HID_USB_DEVICE(USB_VENDOR_ID_HANVON, USB_DEVICE_ID_HANVON_MULTITOUCH) },
1430         { HID_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT, USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) },
1431         { HID_USB_DEVICE(USB_VENDOR_ID_IDEACOM, USB_DEVICE_ID_IDEACOM_IDC6650) },
1432         { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) },
1433         { HID_USB_DEVICE(USB_VENDOR_ID_ILITEK, USB_DEVICE_ID_ILITEK_MULTITOUCH) },
1434         { HID_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS, USB_DEVICE_ID_IRTOUCH_INFRARED_USB) },
1435         { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
1436         { HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) },
1437         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
1438         { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
1439         { HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) },
1440         { HID_USB_DEVICE(USB_VENDOR_ID_LG, USB_DEVICE_ID_LG_MULTITOUCH) },
1441         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
1442         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
1443         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) },
1444         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) },
1445         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) },
1446         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) },
1447         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) },
1448         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) },
1449         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) },
1450         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) },
1451         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) },
1452         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) },
1453         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
1454         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },
1455         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
1456         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) },
1457         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
1458         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) },
1459         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
1460         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
1461         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFP_WHEEL) },
1462         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFGT_WHEEL) },
1463         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
1464         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G27_WHEEL) },
1465         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER) },
1466         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2) },
1467         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) },
1468         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) },
1469         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) },
1470         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) },
1471         { HID_USB_DEVICE(USB_VENDOR_ID_LUMIO, USB_DEVICE_ID_CRYSTALTOUCH) },
1472         { HID_USB_DEVICE(USB_VENDOR_ID_LUMIO, USB_DEVICE_ID_CRYSTALTOUCH_DUAL) },
1473         { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
1474         { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
1475         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500) },
1476         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) },
1477         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) },
1478         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) },
1479         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) },
1480         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K) },
1481         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
1482         { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
1483         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
1484         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) },
1485         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) },
1486         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) },
1487         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) },
1488         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) },
1489         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) },
1490         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) },
1491         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) },
1492         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) },
1493         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) },
1494         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) },
1495         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) },
1496         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) },
1497         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) },
1498         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) },
1499         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) },
1500         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) },
1501         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) },
1502         { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) },
1503         { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
1504         { HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT, USB_DEVICE_ID_PENMOUNT_PCI) },
1505         { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
1506         { HID_USB_DEVICE(USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
1507         { HID_USB_DEVICE(USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
1508         { HID_USB_DEVICE(USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },
1509         { HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_KEYBOARD) },
1510         { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
1511         { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN) },
1512         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
1513         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) },
1514         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
1515         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
1516         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
1517         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
1518         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) },
1519         { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
1520         { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
1521         { HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
1522         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1523         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER) },
1524         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1525         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
1526         { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM, USB_DEVICE_ID_MTP) },
1527         { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, USB_DEVICE_ID_MTP_STM) },
1528         { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX, USB_DEVICE_ID_MTP_SITRONIX) },
1529         { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
1530         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
1531         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
1532         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) },
1533         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) },
1534         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
1535         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) },
1536         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
1537         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) },
1538         { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
1539         { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
1540         { HID_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL, USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
1541         { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
1542         { HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
1543         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
1544         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
1545         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
1546         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
1547         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP1062) },
1548         { HID_USB_DEVICE(USB_VENDOR_ID_UNITEC, USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
1549         { HID_USB_DEVICE(USB_VENDOR_ID_UNITEC, USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
1550         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
1551         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD) },
1552         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO) },
1553         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO) },
1554         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO) },
1555         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
1556         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) },
1557         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
1558         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
1559         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
1560         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
1561         { HID_USB_DEVICE(USB_VENDOR_ID_XAT, USB_DEVICE_ID_XAT_CSR) },
1562         { HID_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_SPX) },
1563         { HID_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_MPX) },
1564         { HID_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_CSR) },
1565         { HID_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_SPX1) },
1566         { HID_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_MPX1) },
1567         { HID_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_CSR1) },
1568         { HID_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_SPX2) },
1569         { HID_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_MPX2) },
1570         { HID_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_CSR2) },
1571         { HID_USB_DEVICE(USB_VENDOR_ID_X_TENSIONS, USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE) },
1572         { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
1573         { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
1574         { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
1575
1576         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
1577         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) },
1578         { }
1579 };
1580
1581 struct hid_dynid {
1582         struct list_head list;
1583         struct hid_device_id id;
1584 };
1585
1586 /**
1587  * store_new_id - add a new HID device ID to this driver and re-probe devices
1588  * @driver: target device driver
1589  * @buf: buffer for scanning device ID data
1590  * @count: input size
1591  *
1592  * Adds a new dynamic hid device ID to this driver,
1593  * and causes the driver to probe for all devices again.
1594  */
1595 static ssize_t store_new_id(struct device_driver *drv, const char *buf,
1596                 size_t count)
1597 {
1598         struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1599         struct hid_dynid *dynid;
1600         __u32 bus, vendor, product;
1601         unsigned long driver_data = 0;
1602         int ret;
1603
1604         ret = sscanf(buf, "%x %x %x %lx",
1605                         &bus, &vendor, &product, &driver_data);
1606         if (ret < 3)
1607                 return -EINVAL;
1608
1609         dynid = kzalloc(sizeof(*dynid), GFP_KERNEL);
1610         if (!dynid)
1611                 return -ENOMEM;
1612
1613         dynid->id.bus = bus;
1614         dynid->id.vendor = vendor;
1615         dynid->id.product = product;
1616         dynid->id.driver_data = driver_data;
1617
1618         spin_lock(&hdrv->dyn_lock);
1619         list_add_tail(&dynid->list, &hdrv->dyn_list);
1620         spin_unlock(&hdrv->dyn_lock);
1621
1622         ret = driver_attach(&hdrv->driver);
1623
1624         return ret ? : count;
1625 }
1626 static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
1627
1628 static void hid_free_dynids(struct hid_driver *hdrv)
1629 {
1630         struct hid_dynid *dynid, *n;
1631
1632         spin_lock(&hdrv->dyn_lock);
1633         list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) {
1634                 list_del(&dynid->list);
1635                 kfree(dynid);
1636         }
1637         spin_unlock(&hdrv->dyn_lock);
1638 }
1639
1640 static const struct hid_device_id *hid_match_device(struct hid_device *hdev,
1641                 struct hid_driver *hdrv)
1642 {
1643         struct hid_dynid *dynid;
1644
1645         spin_lock(&hdrv->dyn_lock);
1646         list_for_each_entry(dynid, &hdrv->dyn_list, list) {
1647                 if (hid_match_one_id(hdev, &dynid->id)) {
1648                         spin_unlock(&hdrv->dyn_lock);
1649                         return &dynid->id;
1650                 }
1651         }
1652         spin_unlock(&hdrv->dyn_lock);
1653
1654         return hid_match_id(hdev, hdrv->id_table);
1655 }
1656
1657 static int hid_bus_match(struct device *dev, struct device_driver *drv)
1658 {
1659         struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1660         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1661
1662         if (!hid_match_device(hdev, hdrv))
1663                 return 0;
1664
1665         /* generic wants all that don't have specialized driver */
1666         if (!strncmp(hdrv->name, "generic-", 8))
1667                 return !hid_match_id(hdev, hid_have_special_driver);
1668
1669         return 1;
1670 }
1671
1672 static int hid_device_probe(struct device *dev)
1673 {
1674         struct hid_driver *hdrv = container_of(dev->driver,
1675                         struct hid_driver, driver);
1676         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1677         const struct hid_device_id *id;
1678         int ret = 0;
1679
1680         if (down_interruptible(&hdev->driver_lock))
1681                 return -EINTR;
1682
1683         if (!hdev->driver) {
1684                 id = hid_match_device(hdev, hdrv);
1685                 if (id == NULL) {
1686                         ret = -ENODEV;
1687                         goto unlock;
1688                 }
1689
1690                 hdev->driver = hdrv;
1691                 if (hdrv->probe) {
1692                         ret = hdrv->probe(hdev, id);
1693                 } else { /* default probe */
1694                         ret = hid_parse(hdev);
1695                         if (!ret)
1696                                 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
1697                 }
1698                 if (ret)
1699                         hdev->driver = NULL;
1700         }
1701 unlock:
1702         up(&hdev->driver_lock);
1703         return ret;
1704 }
1705
1706 static int hid_device_remove(struct device *dev)
1707 {
1708         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1709         struct hid_driver *hdrv;
1710
1711         if (down_interruptible(&hdev->driver_lock))
1712                 return -EINTR;
1713
1714         hdrv = hdev->driver;
1715         if (hdrv) {
1716                 if (hdrv->remove)
1717                         hdrv->remove(hdev);
1718                 else /* default remove */
1719                         hid_hw_stop(hdev);
1720                 hdev->driver = NULL;
1721         }
1722
1723         up(&hdev->driver_lock);
1724         return 0;
1725 }
1726
1727 static int hid_uevent(struct device *dev, struct kobj_uevent_env *env)
1728 {
1729         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1730
1731         if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X",
1732                         hdev->bus, hdev->vendor, hdev->product))
1733                 return -ENOMEM;
1734
1735         if (add_uevent_var(env, "HID_NAME=%s", hdev->name))
1736                 return -ENOMEM;
1737
1738         if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys))
1739                 return -ENOMEM;
1740
1741         if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq))
1742                 return -ENOMEM;
1743
1744         if (add_uevent_var(env, "MODALIAS=hid:b%04Xv%08Xp%08X",
1745                         hdev->bus, hdev->vendor, hdev->product))
1746                 return -ENOMEM;
1747
1748         return 0;
1749 }
1750
1751 static struct bus_type hid_bus_type = {
1752         .name           = "hid",
1753         .match          = hid_bus_match,
1754         .probe          = hid_device_probe,
1755         .remove         = hid_device_remove,
1756         .uevent         = hid_uevent,
1757 };
1758
1759 /* a list of devices that shouldn't be handled by HID core at all */
1760 static const struct hid_device_id hid_ignore_list[] = {
1761         { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) },
1762         { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) },
1763         { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) },
1764         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) },
1765         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) },
1766         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) },
1767         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) },
1768         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) },
1769         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) },
1770         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) },
1771         { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) },
1772         { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) },
1773         { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)},
1774         { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)},
1775         { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) },
1776         { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) },
1777         { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) },
1778         { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) },
1779         { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) },
1780         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) },
1781         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) },
1782         { HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) },
1783         { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) },
1784         { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
1785         { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x0004) },
1786         { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x000a) },
1787         { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
1788         { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
1789         { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
1790         { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) },
1791         { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) },
1792         { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) },
1793         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) },
1794         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) },
1795         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) },
1796         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) },
1797         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) },
1798         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) },
1799         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) },
1800         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) },
1801         { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) },
1802         { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) },
1803         { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) },
1804         { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) },
1805         { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) },
1806         { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) },
1807         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) },
1808         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) },
1809         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) },
1810         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) },
1811         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) },
1812         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) },
1813         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) },
1814         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) },
1815         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) },
1816         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) },
1817         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) },
1818         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) },
1819         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) },
1820         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) },
1821         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) },
1822         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) },
1823         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) },
1824         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) },
1825         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) },
1826         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) },
1827         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) },
1828         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) },
1829         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) },
1830         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) },
1831         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) },
1832         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) },
1833         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) },
1834         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) },
1835         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) },
1836         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) },
1837         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) },
1838         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) },
1839         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) },
1840         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) },
1841         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) },
1842         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) },
1843         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) },
1844         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) },
1845         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) },
1846         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) },
1847         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) },
1848         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) },
1849         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) },
1850         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) },
1851         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) },
1852         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) },
1853         { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) },
1854         { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) },
1855         { HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) },
1856         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) },
1857         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) },
1858         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) },
1859         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY2) },
1860         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) },
1861         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY2) },
1862         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) },
1863         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY2) },
1864         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYVOLTAGE) },
1865         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYCURRENT) },
1866         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTIME) },
1867         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTEMPERATURE) },
1868         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYPH) },
1869         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) },
1870         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) },
1871         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) },
1872         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIC) },
1873         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIB) },
1874         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY) },
1875         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) },
1876         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) },
1877         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOTOR) },
1878         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) },
1879         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) },
1880         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) },
1881         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) },
1882         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) },
1883         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER) },
1884         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER2) },
1885         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_ABSESP) },
1886         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_AUTODATABUS) },
1887         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MCT) },
1888         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HYBRID) },
1889         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HEATCONTROL) },
1890         { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) },
1891         { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) },
1892         { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) },
1893         { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) },
1894         { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) },
1895         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) },
1896         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) },
1897         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) },
1898         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) },
1899         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) },
1900         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) },
1901         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) },
1902         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) },
1903         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) },
1904         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) },
1905         { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) },
1906         { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) },
1907         { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) },
1908         { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
1909         { HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
1910         { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
1911         { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) },
1912         { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
1913         { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },
1914         { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) },
1915         { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) },
1916         { HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) },
1917         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) },
1918         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) },
1919         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) },
1920         { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) },
1921         { }
1922 };
1923
1924 /**
1925  * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer
1926  *
1927  * There are composite devices for which we want to ignore only a certain
1928  * interface. This is a list of devices for which only the mouse interface will
1929  * be ignored. This allows a dedicated driver to take care of the interface.
1930  */
1931 static const struct hid_device_id hid_mouse_ignore_list[] = {
1932         /* appletouch driver */
1933         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1934         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1935         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1936         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1937         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1938         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1939         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1940         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1941         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1942         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1943         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1944         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1945         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1946         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
1947         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1948         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1949         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1950         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1951         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1952         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
1953         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1954         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1955         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
1956         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
1957         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
1958         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
1959         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
1960         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
1961         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
1962         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
1963         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
1964         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
1965         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
1966         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
1967         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
1968         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
1969         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
1970         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
1971         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
1972         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
1973         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
1974         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1975         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1976         { }
1977 };
1978
1979 static bool hid_ignore(struct hid_device *hdev)
1980 {
1981         switch (hdev->vendor) {
1982         case USB_VENDOR_ID_CODEMERCS:
1983                 /* ignore all Code Mercenaries IOWarrior devices */
1984                 if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST &&
1985                                 hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST)
1986                         return true;
1987                 break;
1988         case USB_VENDOR_ID_LOGITECH:
1989                 if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST &&
1990                                 hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST)
1991                         return true;
1992                 break;
1993         case USB_VENDOR_ID_SOUNDGRAPH:
1994                 if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST &&
1995                     hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST)
1996                         return true;
1997                 break;
1998         case USB_VENDOR_ID_HANWANG:
1999                 if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST &&
2000                     hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST)
2001                         return true;
2002                 break;
2003         case USB_VENDOR_ID_JESS:
2004                 if (hdev->product == USB_DEVICE_ID_JESS_YUREX &&
2005                                 hdev->type == HID_TYPE_USBNONE)
2006                         return true;
2007         break;
2008         }
2009
2010         if (hdev->type == HID_TYPE_USBMOUSE &&
2011                         hid_match_id(hdev, hid_mouse_ignore_list))
2012                 return true;
2013
2014         return !!hid_match_id(hdev, hid_ignore_list);
2015 }
2016
2017 int hid_add_device(struct hid_device *hdev)
2018 {
2019         static atomic_t id = ATOMIC_INIT(0);
2020         int ret;
2021
2022         if (WARN_ON(hdev->status & HID_STAT_ADDED))
2023                 return -EBUSY;
2024
2025         /* we need to kill them here, otherwise they will stay allocated to
2026          * wait for coming driver */
2027         if (!(hdev->quirks & HID_QUIRK_NO_IGNORE)
2028             && (hid_ignore(hdev) || (hdev->quirks & HID_QUIRK_IGNORE)))
2029                 return -ENODEV;
2030
2031         /* XXX hack, any other cleaner solution after the driver core
2032          * is converted to allow more than 20 bytes as the device name? */
2033         dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
2034                      hdev->vendor, hdev->product, atomic_inc_return(&id));
2035
2036         hid_debug_register(hdev, dev_name(&hdev->dev));
2037         ret = device_add(&hdev->dev);
2038         if (!ret)
2039                 hdev->status |= HID_STAT_ADDED;
2040         else
2041                 hid_debug_unregister(hdev);
2042
2043         return ret;
2044 }
2045 EXPORT_SYMBOL_GPL(hid_add_device);
2046
2047 /**
2048  * hid_allocate_device - allocate new hid device descriptor
2049  *
2050  * Allocate and initialize hid device, so that hid_destroy_device might be
2051  * used to free it.
2052  *
2053  * New hid_device pointer is returned on success, otherwise ERR_PTR encoded
2054  * error value.
2055  */
2056 struct hid_device *hid_allocate_device(void)
2057 {
2058         struct hid_device *hdev;
2059         unsigned int i;
2060         int ret = -ENOMEM;
2061
2062         hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
2063         if (hdev == NULL)
2064                 return ERR_PTR(ret);
2065
2066         device_initialize(&hdev->dev);
2067         hdev->dev.release = hid_device_release;
2068         hdev->dev.bus = &hid_bus_type;
2069
2070         hdev->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS,
2071                         sizeof(struct hid_collection), GFP_KERNEL);
2072         if (hdev->collection == NULL)
2073                 goto err;
2074         hdev->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
2075
2076         for (i = 0; i < HID_REPORT_TYPES; i++)
2077                 INIT_LIST_HEAD(&hdev->report_enum[i].report_list);
2078
2079         init_waitqueue_head(&hdev->debug_wait);
2080         INIT_LIST_HEAD(&hdev->debug_list);
2081         sema_init(&hdev->driver_lock, 1);
2082
2083         return hdev;
2084 err:
2085         put_device(&hdev->dev);
2086         return ERR_PTR(ret);
2087 }
2088 EXPORT_SYMBOL_GPL(hid_allocate_device);
2089
2090 static void hid_remove_device(struct hid_device *hdev)
2091 {
2092         if (hdev->status & HID_STAT_ADDED) {
2093                 device_del(&hdev->dev);
2094                 hid_debug_unregister(hdev);
2095                 hdev->status &= ~HID_STAT_ADDED;
2096         }
2097 }
2098
2099 /**
2100  * hid_destroy_device - free previously allocated device
2101  *
2102  * @hdev: hid device
2103  *
2104  * If you allocate hid_device through hid_allocate_device, you should ever
2105  * free by this function.
2106  */
2107 void hid_destroy_device(struct hid_device *hdev)
2108 {
2109         hid_remove_device(hdev);
2110         put_device(&hdev->dev);
2111 }
2112 EXPORT_SYMBOL_GPL(hid_destroy_device);
2113
2114 int __hid_register_driver(struct hid_driver *hdrv, struct module *owner,
2115                 const char *mod_name)
2116 {
2117         int ret;
2118
2119         hdrv->driver.name = hdrv->name;
2120         hdrv->driver.bus = &hid_bus_type;
2121         hdrv->driver.owner = owner;
2122         hdrv->driver.mod_name = mod_name;
2123
2124         INIT_LIST_HEAD(&hdrv->dyn_list);
2125         spin_lock_init(&hdrv->dyn_lock);
2126
2127         ret = driver_register(&hdrv->driver);
2128         if (ret)
2129                 return ret;
2130
2131         ret = driver_create_file(&hdrv->driver, &driver_attr_new_id);
2132         if (ret)
2133                 driver_unregister(&hdrv->driver);
2134
2135         return ret;
2136 }
2137 EXPORT_SYMBOL_GPL(__hid_register_driver);
2138
2139 void hid_unregister_driver(struct hid_driver *hdrv)
2140 {
2141         driver_remove_file(&hdrv->driver, &driver_attr_new_id);
2142         driver_unregister(&hdrv->driver);
2143         hid_free_dynids(hdrv);
2144 }
2145 EXPORT_SYMBOL_GPL(hid_unregister_driver);
2146
2147 int hid_check_keys_pressed(struct hid_device *hid)
2148 {
2149         struct hid_input *hidinput;
2150         int i;
2151
2152         if (!(hid->claimed & HID_CLAIMED_INPUT))
2153                 return 0;
2154
2155         list_for_each_entry(hidinput, &hid->inputs, list) {
2156                 for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++)
2157                         if (hidinput->input->key[i])
2158                                 return 1;
2159         }
2160
2161         return 0;
2162 }
2163
2164 EXPORT_SYMBOL_GPL(hid_check_keys_pressed);
2165
2166 static int __init hid_init(void)
2167 {
2168         int ret;
2169
2170         if (hid_debug)
2171                 pr_warn("hid_debug is now used solely for parser and driver debugging.\n"
2172                         "debugfs is now used for inspecting the device (report descriptor, reports)\n");
2173
2174         ret = bus_register(&hid_bus_type);
2175         if (ret) {
2176                 pr_err("can't register hid bus\n");
2177                 goto err;
2178         }
2179
2180         ret = hidraw_init();
2181         if (ret)
2182                 goto err_bus;
2183
2184         hid_debug_init();
2185
2186         return 0;
2187 err_bus:
2188         bus_unregister(&hid_bus_type);
2189 err:
2190         return ret;
2191 }
2192
2193 static void __exit hid_exit(void)
2194 {
2195         hid_debug_exit();
2196         hidraw_exit();
2197         bus_unregister(&hid_bus_type);
2198 }
2199
2200 module_init(hid_init);
2201 module_exit(hid_exit);
2202
2203 MODULE_AUTHOR("Andreas Gal");
2204 MODULE_AUTHOR("Vojtech Pavlik");
2205 MODULE_AUTHOR("Jiri Kosina");
2206 MODULE_LICENSE(DRIVER_LICENSE);
2207