HID: hid-mulitouch: add support for the 'Sensing Win7-TwoFinger'
[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 #include <linux/module.h>
18 #include <linux/slab.h>
19 #include <linux/init.h>
20 #include <linux/kernel.h>
21 #include <linux/list.h>
22 #include <linux/mm.h>
23 #include <linux/spinlock.h>
24 #include <asm/unaligned.h>
25 #include <asm/byteorder.h>
26 #include <linux/input.h>
27 #include <linux/wait.h>
28 #include <linux/vmalloc.h>
29 #include <linux/sched.h>
30
31 #include <linux/hid.h>
32 #include <linux/hiddev.h>
33 #include <linux/hid-debug.h>
34 #include <linux/hidraw.h>
35
36 #include "hid-ids.h"
37
38 /*
39  * Version Information
40  */
41
42 #define DRIVER_DESC "HID core driver"
43 #define DRIVER_LICENSE "GPL"
44
45 int hid_debug = 0;
46 module_param_named(debug, hid_debug, int, 0600);
47 MODULE_PARM_DESC(debug, "toggle HID debugging messages");
48 EXPORT_SYMBOL_GPL(hid_debug);
49
50 /*
51  * Register a new report for a device.
52  */
53
54 struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
55 {
56         struct hid_report_enum *report_enum = device->report_enum + type;
57         struct hid_report *report;
58
59         if (report_enum->report_id_hash[id])
60                 return report_enum->report_id_hash[id];
61
62         if (!(report = kzalloc(sizeof(struct hid_report), GFP_KERNEL)))
63                 return NULL;
64
65         if (id != 0)
66                 report_enum->numbered = 1;
67
68         report->id = id;
69         report->type = type;
70         report->size = 0;
71         report->device = device;
72         report_enum->report_id_hash[id] = report;
73
74         list_add_tail(&report->list, &report_enum->report_list);
75
76         return report;
77 }
78 EXPORT_SYMBOL_GPL(hid_register_report);
79
80 /*
81  * Register a new field for this report.
82  */
83
84 static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values)
85 {
86         struct hid_field *field;
87
88         if (report->maxfield == HID_MAX_FIELDS) {
89                 dbg_hid("too many fields in report\n");
90                 return NULL;
91         }
92
93         if (!(field = kzalloc(sizeof(struct hid_field) + usages * sizeof(struct hid_usage)
94                 + values * sizeof(unsigned), GFP_KERNEL))) return NULL;
95
96         field->index = report->maxfield++;
97         report->field[field->index] = field;
98         field->usage = (struct hid_usage *)(field + 1);
99         field->value = (s32 *)(field->usage + usages);
100         field->report = report;
101
102         return field;
103 }
104
105 /*
106  * Open a collection. The type/usage is pushed on the stack.
107  */
108
109 static int open_collection(struct hid_parser *parser, unsigned type)
110 {
111         struct hid_collection *collection;
112         unsigned usage;
113
114         usage = parser->local.usage[0];
115
116         if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) {
117                 dbg_hid("collection stack overflow\n");
118                 return -1;
119         }
120
121         if (parser->device->maxcollection == parser->device->collection_size) {
122                 collection = kmalloc(sizeof(struct hid_collection) *
123                                 parser->device->collection_size * 2, GFP_KERNEL);
124                 if (collection == NULL) {
125                         dbg_hid("failed to reallocate collection array\n");
126                         return -1;
127                 }
128                 memcpy(collection, parser->device->collection,
129                         sizeof(struct hid_collection) *
130                         parser->device->collection_size);
131                 memset(collection + parser->device->collection_size, 0,
132                         sizeof(struct hid_collection) *
133                         parser->device->collection_size);
134                 kfree(parser->device->collection);
135                 parser->device->collection = collection;
136                 parser->device->collection_size *= 2;
137         }
138
139         parser->collection_stack[parser->collection_stack_ptr++] =
140                 parser->device->maxcollection;
141
142         collection = parser->device->collection +
143                 parser->device->maxcollection++;
144         collection->type = type;
145         collection->usage = usage;
146         collection->level = parser->collection_stack_ptr - 1;
147
148         if (type == HID_COLLECTION_APPLICATION)
149                 parser->device->maxapplication++;
150
151         return 0;
152 }
153
154 /*
155  * Close a collection.
156  */
157
158 static int close_collection(struct hid_parser *parser)
159 {
160         if (!parser->collection_stack_ptr) {
161                 dbg_hid("collection stack underflow\n");
162                 return -1;
163         }
164         parser->collection_stack_ptr--;
165         return 0;
166 }
167
168 /*
169  * Climb up the stack, search for the specified collection type
170  * and return the usage.
171  */
172
173 static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type)
174 {
175         int n;
176         for (n = parser->collection_stack_ptr - 1; n >= 0; n--)
177                 if (parser->device->collection[parser->collection_stack[n]].type == type)
178                         return parser->device->collection[parser->collection_stack[n]].usage;
179         return 0; /* we know nothing about this usage type */
180 }
181
182 /*
183  * Add a usage to the temporary parser table.
184  */
185
186 static int hid_add_usage(struct hid_parser *parser, unsigned usage)
187 {
188         if (parser->local.usage_index >= HID_MAX_USAGES) {
189                 dbg_hid("usage index exceeded\n");
190                 return -1;
191         }
192         parser->local.usage[parser->local.usage_index] = usage;
193         parser->local.collection_index[parser->local.usage_index] =
194                 parser->collection_stack_ptr ?
195                 parser->collection_stack[parser->collection_stack_ptr - 1] : 0;
196         parser->local.usage_index++;
197         return 0;
198 }
199
200 /*
201  * Register a new field for this report.
202  */
203
204 static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags)
205 {
206         struct hid_report *report;
207         struct hid_field *field;
208         int usages;
209         unsigned offset;
210         int i;
211
212         if (!(report = hid_register_report(parser->device, report_type, parser->global.report_id))) {
213                 dbg_hid("hid_register_report failed\n");
214                 return -1;
215         }
216
217         if (parser->global.logical_maximum < parser->global.logical_minimum) {
218                 dbg_hid("logical range invalid %d %d\n", parser->global.logical_minimum, parser->global.logical_maximum);
219                 return -1;
220         }
221
222         offset = report->size;
223         report->size += parser->global.report_size * parser->global.report_count;
224
225         if (!parser->local.usage_index) /* Ignore padding fields */
226                 return 0;
227
228         usages = max_t(int, parser->local.usage_index, parser->global.report_count);
229
230         if ((field = hid_register_field(report, usages, parser->global.report_count)) == NULL)
231                 return 0;
232
233         field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
234         field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
235         field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
236
237         for (i = 0; i < usages; i++) {
238                 int j = i;
239                 /* Duplicate the last usage we parsed if we have excess values */
240                 if (i >= parser->local.usage_index)
241                         j = parser->local.usage_index - 1;
242                 field->usage[i].hid = parser->local.usage[j];
243                 field->usage[i].collection_index =
244                         parser->local.collection_index[j];
245         }
246
247         field->maxusage = usages;
248         field->flags = flags;
249         field->report_offset = offset;
250         field->report_type = report_type;
251         field->report_size = parser->global.report_size;
252         field->report_count = parser->global.report_count;
253         field->logical_minimum = parser->global.logical_minimum;
254         field->logical_maximum = parser->global.logical_maximum;
255         field->physical_minimum = parser->global.physical_minimum;
256         field->physical_maximum = parser->global.physical_maximum;
257         field->unit_exponent = parser->global.unit_exponent;
258         field->unit = parser->global.unit;
259
260         return 0;
261 }
262
263 /*
264  * Read data value from item.
265  */
266
267 static u32 item_udata(struct hid_item *item)
268 {
269         switch (item->size) {
270         case 1: return item->data.u8;
271         case 2: return item->data.u16;
272         case 4: return item->data.u32;
273         }
274         return 0;
275 }
276
277 static s32 item_sdata(struct hid_item *item)
278 {
279         switch (item->size) {
280         case 1: return item->data.s8;
281         case 2: return item->data.s16;
282         case 4: return item->data.s32;
283         }
284         return 0;
285 }
286
287 /*
288  * Process a global item.
289  */
290
291 static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
292 {
293         switch (item->tag) {
294         case HID_GLOBAL_ITEM_TAG_PUSH:
295
296                 if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
297                         dbg_hid("global enviroment stack overflow\n");
298                         return -1;
299                 }
300
301                 memcpy(parser->global_stack + parser->global_stack_ptr++,
302                         &parser->global, sizeof(struct hid_global));
303                 return 0;
304
305         case HID_GLOBAL_ITEM_TAG_POP:
306
307                 if (!parser->global_stack_ptr) {
308                         dbg_hid("global enviroment stack underflow\n");
309                         return -1;
310                 }
311
312                 memcpy(&parser->global, parser->global_stack +
313                         --parser->global_stack_ptr, sizeof(struct hid_global));
314                 return 0;
315
316         case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
317                 parser->global.usage_page = item_udata(item);
318                 return 0;
319
320         case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
321                 parser->global.logical_minimum = item_sdata(item);
322                 return 0;
323
324         case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
325                 if (parser->global.logical_minimum < 0)
326                         parser->global.logical_maximum = item_sdata(item);
327                 else
328                         parser->global.logical_maximum = item_udata(item);
329                 return 0;
330
331         case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
332                 parser->global.physical_minimum = item_sdata(item);
333                 return 0;
334
335         case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
336                 if (parser->global.physical_minimum < 0)
337                         parser->global.physical_maximum = item_sdata(item);
338                 else
339                         parser->global.physical_maximum = item_udata(item);
340                 return 0;
341
342         case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
343                 parser->global.unit_exponent = item_sdata(item);
344                 return 0;
345
346         case HID_GLOBAL_ITEM_TAG_UNIT:
347                 parser->global.unit = item_udata(item);
348                 return 0;
349
350         case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
351                 parser->global.report_size = item_udata(item);
352                 if (parser->global.report_size > 32) {
353                         dbg_hid("invalid report_size %d\n",
354                                         parser->global.report_size);
355                         return -1;
356                 }
357                 return 0;
358
359         case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
360                 parser->global.report_count = item_udata(item);
361                 if (parser->global.report_count > HID_MAX_USAGES) {
362                         dbg_hid("invalid report_count %d\n",
363                                         parser->global.report_count);
364                         return -1;
365                 }
366                 return 0;
367
368         case HID_GLOBAL_ITEM_TAG_REPORT_ID:
369                 parser->global.report_id = item_udata(item);
370                 if (parser->global.report_id == 0) {
371                         dbg_hid("report_id 0 is invalid\n");
372                         return -1;
373                 }
374                 return 0;
375
376         default:
377                 dbg_hid("unknown global tag 0x%x\n", item->tag);
378                 return -1;
379         }
380 }
381
382 /*
383  * Process a local item.
384  */
385
386 static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
387 {
388         __u32 data;
389         unsigned n;
390
391         data = item_udata(item);
392
393         switch (item->tag) {
394         case HID_LOCAL_ITEM_TAG_DELIMITER:
395
396                 if (data) {
397                         /*
398                          * We treat items before the first delimiter
399                          * as global to all usage sets (branch 0).
400                          * In the moment we process only these global
401                          * items and the first delimiter set.
402                          */
403                         if (parser->local.delimiter_depth != 0) {
404                                 dbg_hid("nested delimiters\n");
405                                 return -1;
406                         }
407                         parser->local.delimiter_depth++;
408                         parser->local.delimiter_branch++;
409                 } else {
410                         if (parser->local.delimiter_depth < 1) {
411                                 dbg_hid("bogus close delimiter\n");
412                                 return -1;
413                         }
414                         parser->local.delimiter_depth--;
415                 }
416                 return 1;
417
418         case HID_LOCAL_ITEM_TAG_USAGE:
419
420                 if (parser->local.delimiter_branch > 1) {
421                         dbg_hid("alternative usage ignored\n");
422                         return 0;
423                 }
424
425                 if (item->size <= 2)
426                         data = (parser->global.usage_page << 16) + data;
427
428                 return hid_add_usage(parser, data);
429
430         case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
431
432                 if (parser->local.delimiter_branch > 1) {
433                         dbg_hid("alternative usage ignored\n");
434                         return 0;
435                 }
436
437                 if (item->size <= 2)
438                         data = (parser->global.usage_page << 16) + data;
439
440                 parser->local.usage_minimum = data;
441                 return 0;
442
443         case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
444
445                 if (parser->local.delimiter_branch > 1) {
446                         dbg_hid("alternative usage ignored\n");
447                         return 0;
448                 }
449
450                 if (item->size <= 2)
451                         data = (parser->global.usage_page << 16) + data;
452
453                 for (n = parser->local.usage_minimum; n <= data; n++)
454                         if (hid_add_usage(parser, n)) {
455                                 dbg_hid("hid_add_usage failed\n");
456                                 return -1;
457                         }
458                 return 0;
459
460         default:
461
462                 dbg_hid("unknown local item tag 0x%x\n", item->tag);
463                 return 0;
464         }
465         return 0;
466 }
467
468 /*
469  * Process a main item.
470  */
471
472 static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
473 {
474         __u32 data;
475         int ret;
476
477         data = item_udata(item);
478
479         switch (item->tag) {
480         case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
481                 ret = open_collection(parser, data & 0xff);
482                 break;
483         case HID_MAIN_ITEM_TAG_END_COLLECTION:
484                 ret = close_collection(parser);
485                 break;
486         case HID_MAIN_ITEM_TAG_INPUT:
487                 ret = hid_add_field(parser, HID_INPUT_REPORT, data);
488                 break;
489         case HID_MAIN_ITEM_TAG_OUTPUT:
490                 ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
491                 break;
492         case HID_MAIN_ITEM_TAG_FEATURE:
493                 ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
494                 break;
495         default:
496                 dbg_hid("unknown main item tag 0x%x\n", item->tag);
497                 ret = 0;
498         }
499
500         memset(&parser->local, 0, sizeof(parser->local));       /* Reset the local parser environment */
501
502         return ret;
503 }
504
505 /*
506  * Process a reserved item.
507  */
508
509 static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
510 {
511         dbg_hid("reserved item type, tag 0x%x\n", item->tag);
512         return 0;
513 }
514
515 /*
516  * Free a report and all registered fields. The field->usage and
517  * field->value table's are allocated behind the field, so we need
518  * only to free(field) itself.
519  */
520
521 static void hid_free_report(struct hid_report *report)
522 {
523         unsigned n;
524
525         for (n = 0; n < report->maxfield; n++)
526                 kfree(report->field[n]);
527         kfree(report);
528 }
529
530 /*
531  * Free a device structure, all reports, and all fields.
532  */
533
534 static void hid_device_release(struct device *dev)
535 {
536         struct hid_device *device = container_of(dev, struct hid_device, dev);
537         unsigned i, j;
538
539         for (i = 0; i < HID_REPORT_TYPES; i++) {
540                 struct hid_report_enum *report_enum = device->report_enum + i;
541
542                 for (j = 0; j < 256; j++) {
543                         struct hid_report *report = report_enum->report_id_hash[j];
544                         if (report)
545                                 hid_free_report(report);
546                 }
547         }
548
549         kfree(device->rdesc);
550         kfree(device->collection);
551         kfree(device);
552 }
553
554 /*
555  * Fetch a report description item from the data stream. We support long
556  * items, though they are not used yet.
557  */
558
559 static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
560 {
561         u8 b;
562
563         if ((end - start) <= 0)
564                 return NULL;
565
566         b = *start++;
567
568         item->type = (b >> 2) & 3;
569         item->tag  = (b >> 4) & 15;
570
571         if (item->tag == HID_ITEM_TAG_LONG) {
572
573                 item->format = HID_ITEM_FORMAT_LONG;
574
575                 if ((end - start) < 2)
576                         return NULL;
577
578                 item->size = *start++;
579                 item->tag  = *start++;
580
581                 if ((end - start) < item->size)
582                         return NULL;
583
584                 item->data.longdata = start;
585                 start += item->size;
586                 return start;
587         }
588
589         item->format = HID_ITEM_FORMAT_SHORT;
590         item->size = b & 3;
591
592         switch (item->size) {
593         case 0:
594                 return start;
595
596         case 1:
597                 if ((end - start) < 1)
598                         return NULL;
599                 item->data.u8 = *start++;
600                 return start;
601
602         case 2:
603                 if ((end - start) < 2)
604                         return NULL;
605                 item->data.u16 = get_unaligned_le16(start);
606                 start = (__u8 *)((__le16 *)start + 1);
607                 return start;
608
609         case 3:
610                 item->size++;
611                 if ((end - start) < 4)
612                         return NULL;
613                 item->data.u32 = get_unaligned_le32(start);
614                 start = (__u8 *)((__le32 *)start + 1);
615                 return start;
616         }
617
618         return NULL;
619 }
620
621 /**
622  * hid_parse_report - parse device report
623  *
624  * @device: hid device
625  * @start: report start
626  * @size: report size
627  *
628  * Parse a report description into a hid_device structure. Reports are
629  * enumerated, fields are attached to these reports.
630  * 0 returned on success, otherwise nonzero error value.
631  */
632 int hid_parse_report(struct hid_device *device, __u8 *start,
633                 unsigned size)
634 {
635         struct hid_parser *parser;
636         struct hid_item item;
637         __u8 *end;
638         int ret;
639         static int (*dispatch_type[])(struct hid_parser *parser,
640                                       struct hid_item *item) = {
641                 hid_parser_main,
642                 hid_parser_global,
643                 hid_parser_local,
644                 hid_parser_reserved
645         };
646
647         if (device->driver->report_fixup)
648                 start = device->driver->report_fixup(device, start, &size);
649
650         device->rdesc = kmemdup(start, size, GFP_KERNEL);
651         if (device->rdesc == NULL)
652                 return -ENOMEM;
653         device->rsize = size;
654
655         parser = vmalloc(sizeof(struct hid_parser));
656         if (!parser) {
657                 ret = -ENOMEM;
658                 goto err;
659         }
660
661         memset(parser, 0, sizeof(struct hid_parser));
662         parser->device = device;
663
664         end = start + size;
665         ret = -EINVAL;
666         while ((start = fetch_item(start, end, &item)) != NULL) {
667
668                 if (item.format != HID_ITEM_FORMAT_SHORT) {
669                         dbg_hid("unexpected long global item\n");
670                         goto err;
671                 }
672
673                 if (dispatch_type[item.type](parser, &item)) {
674                         dbg_hid("item %u %u %u %u parsing failed\n",
675                                 item.format, (unsigned)item.size, (unsigned)item.type, (unsigned)item.tag);
676                         goto err;
677                 }
678
679                 if (start == end) {
680                         if (parser->collection_stack_ptr) {
681                                 dbg_hid("unbalanced collection at end of report description\n");
682                                 goto err;
683                         }
684                         if (parser->local.delimiter_depth) {
685                                 dbg_hid("unbalanced delimiter at end of report description\n");
686                                 goto err;
687                         }
688                         vfree(parser);
689                         return 0;
690                 }
691         }
692
693         dbg_hid("item fetching failed at offset %d\n", (int)(end - start));
694 err:
695         vfree(parser);
696         return ret;
697 }
698 EXPORT_SYMBOL_GPL(hid_parse_report);
699
700 /*
701  * Convert a signed n-bit integer to signed 32-bit integer. Common
702  * cases are done through the compiler, the screwed things has to be
703  * done by hand.
704  */
705
706 static s32 snto32(__u32 value, unsigned n)
707 {
708         switch (n) {
709         case 8:  return ((__s8)value);
710         case 16: return ((__s16)value);
711         case 32: return ((__s32)value);
712         }
713         return value & (1 << (n - 1)) ? value | (-1 << n) : value;
714 }
715
716 /*
717  * Convert a signed 32-bit integer to a signed n-bit integer.
718  */
719
720 static u32 s32ton(__s32 value, unsigned n)
721 {
722         s32 a = value >> (n - 1);
723         if (a && a != -1)
724                 return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
725         return value & ((1 << n) - 1);
726 }
727
728 /*
729  * Extract/implement a data field from/to a little endian report (bit array).
730  *
731  * Code sort-of follows HID spec:
732  *     http://www.usb.org/developers/devclass_docs/HID1_11.pdf
733  *
734  * While the USB HID spec allows unlimited length bit fields in "report
735  * descriptors", most devices never use more than 16 bits.
736  * One model of UPS is claimed to report "LINEV" as a 32-bit field.
737  * Search linux-kernel and linux-usb-devel archives for "hid-core extract".
738  */
739
740 static __inline__ __u32 extract(__u8 *report, unsigned offset, unsigned n)
741 {
742         u64 x;
743
744         if (n > 32)
745                 printk(KERN_WARNING "HID: extract() called with n (%d) > 32! (%s)\n",
746                                 n, current->comm);
747
748         report += offset >> 3;  /* adjust byte index */
749         offset &= 7;            /* now only need bit offset into one byte */
750         x = get_unaligned_le64(report);
751         x = (x >> offset) & ((1ULL << n) - 1);  /* extract bit field */
752         return (u32) x;
753 }
754
755 /*
756  * "implement" : set bits in a little endian bit stream.
757  * Same concepts as "extract" (see comments above).
758  * The data mangled in the bit stream remains in little endian
759  * order the whole time. It make more sense to talk about
760  * endianness of register values by considering a register
761  * a "cached" copy of the little endiad bit stream.
762  */
763 static __inline__ void implement(__u8 *report, unsigned offset, unsigned n, __u32 value)
764 {
765         u64 x;
766         u64 m = (1ULL << n) - 1;
767
768         if (n > 32)
769                 printk(KERN_WARNING "HID: implement() called with n (%d) > 32! (%s)\n",
770                                 n, current->comm);
771
772         if (value > m)
773                 printk(KERN_WARNING "HID: implement() called with too large value %d! (%s)\n",
774                                 value, current->comm);
775         WARN_ON(value > m);
776         value &= m;
777
778         report += offset >> 3;
779         offset &= 7;
780
781         x = get_unaligned_le64(report);
782         x &= ~(m << offset);
783         x |= ((u64)value) << offset;
784         put_unaligned_le64(x, report);
785 }
786
787 /*
788  * Search an array for a value.
789  */
790
791 static __inline__ int search(__s32 *array, __s32 value, unsigned n)
792 {
793         while (n--) {
794                 if (*array++ == value)
795                         return 0;
796         }
797         return -1;
798 }
799
800 /**
801  * hid_match_report - check if driver's raw_event should be called
802  *
803  * @hid: hid device
804  * @report_type: type to match against
805  *
806  * compare hid->driver->report_table->report_type to report->type
807  */
808 static int hid_match_report(struct hid_device *hid, struct hid_report *report)
809 {
810         const struct hid_report_id *id = hid->driver->report_table;
811
812         if (!id) /* NULL means all */
813                 return 1;
814
815         for (; id->report_type != HID_TERMINATOR; id++)
816                 if (id->report_type == HID_ANY_ID ||
817                                 id->report_type == report->type)
818                         return 1;
819         return 0;
820 }
821
822 /**
823  * hid_match_usage - check if driver's event should be called
824  *
825  * @hid: hid device
826  * @usage: usage to match against
827  *
828  * compare hid->driver->usage_table->usage_{type,code} to
829  * usage->usage_{type,code}
830  */
831 static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage)
832 {
833         const struct hid_usage_id *id = hid->driver->usage_table;
834
835         if (!id) /* NULL means all */
836                 return 1;
837
838         for (; id->usage_type != HID_ANY_ID - 1; id++)
839                 if ((id->usage_hid == HID_ANY_ID ||
840                                 id->usage_hid == usage->hid) &&
841                                 (id->usage_type == HID_ANY_ID ||
842                                 id->usage_type == usage->type) &&
843                                 (id->usage_code == HID_ANY_ID ||
844                                  id->usage_code == usage->code))
845                         return 1;
846         return 0;
847 }
848
849 static void hid_process_event(struct hid_device *hid, struct hid_field *field,
850                 struct hid_usage *usage, __s32 value, int interrupt)
851 {
852         struct hid_driver *hdrv = hid->driver;
853         int ret;
854
855         hid_dump_input(hid, usage, value);
856
857         if (hdrv && hdrv->event && hid_match_usage(hid, usage)) {
858                 ret = hdrv->event(hid, field, usage, value);
859                 if (ret != 0) {
860                         if (ret < 0)
861                                 dbg_hid("%s's event failed with %d\n",
862                                                 hdrv->name, ret);
863                         return;
864                 }
865         }
866
867         if (hid->claimed & HID_CLAIMED_INPUT)
868                 hidinput_hid_event(hid, field, usage, value);
869         if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event)
870                 hid->hiddev_hid_event(hid, field, usage, value);
871 }
872
873 /*
874  * Analyse a received field, and fetch the data from it. The field
875  * content is stored for next report processing (we do differential
876  * reporting to the layer).
877  */
878
879 static void hid_input_field(struct hid_device *hid, struct hid_field *field,
880                             __u8 *data, int interrupt)
881 {
882         unsigned n;
883         unsigned count = field->report_count;
884         unsigned offset = field->report_offset;
885         unsigned size = field->report_size;
886         __s32 min = field->logical_minimum;
887         __s32 max = field->logical_maximum;
888         __s32 *value;
889
890         if (!(value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC)))
891                 return;
892
893         for (n = 0; n < count; n++) {
894
895                         value[n] = min < 0 ? snto32(extract(data, offset + n * size, size), size) :
896                                                     extract(data, offset + n * size, size);
897
898                         if (!(field->flags & HID_MAIN_ITEM_VARIABLE) /* Ignore report if ErrorRollOver */
899                             && value[n] >= min && value[n] <= max
900                             && field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
901                                 goto exit;
902         }
903
904         for (n = 0; n < count; n++) {
905
906                 if (HID_MAIN_ITEM_VARIABLE & field->flags) {
907                         hid_process_event(hid, field, &field->usage[n], value[n], interrupt);
908                         continue;
909                 }
910
911                 if (field->value[n] >= min && field->value[n] <= max
912                         && field->usage[field->value[n] - min].hid
913                         && search(value, field->value[n], count))
914                                 hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt);
915
916                 if (value[n] >= min && value[n] <= max
917                         && field->usage[value[n] - min].hid
918                         && search(field->value, value[n], count))
919                                 hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt);
920         }
921
922         memcpy(field->value, value, count * sizeof(__s32));
923 exit:
924         kfree(value);
925 }
926
927 /*
928  * Output the field into the report.
929  */
930
931 static void hid_output_field(struct hid_field *field, __u8 *data)
932 {
933         unsigned count = field->report_count;
934         unsigned offset = field->report_offset;
935         unsigned size = field->report_size;
936         unsigned n;
937
938         for (n = 0; n < count; n++) {
939                 if (field->logical_minimum < 0) /* signed values */
940                         implement(data, offset + n * size, size, s32ton(field->value[n], size));
941                 else                            /* unsigned values */
942                         implement(data, offset + n * size, size, field->value[n]);
943         }
944 }
945
946 /*
947  * Create a report.
948  */
949
950 void hid_output_report(struct hid_report *report, __u8 *data)
951 {
952         unsigned n;
953
954         if (report->id > 0)
955                 *data++ = report->id;
956
957         memset(data, 0, ((report->size - 1) >> 3) + 1);
958         for (n = 0; n < report->maxfield; n++)
959                 hid_output_field(report->field[n], data);
960 }
961 EXPORT_SYMBOL_GPL(hid_output_report);
962
963 /*
964  * Set a field value. The report this field belongs to has to be
965  * created and transferred to the device, to set this value in the
966  * device.
967  */
968
969 int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
970 {
971         unsigned size = field->report_size;
972
973         hid_dump_input(field->report->device, field->usage + offset, value);
974
975         if (offset >= field->report_count) {
976                 dbg_hid("offset (%d) exceeds report_count (%d)\n", offset, field->report_count);
977                 return -1;
978         }
979         if (field->logical_minimum < 0) {
980                 if (value != snto32(s32ton(value, size), size)) {
981                         dbg_hid("value %d is out of range\n", value);
982                         return -1;
983                 }
984         }
985         field->value[offset] = value;
986         return 0;
987 }
988 EXPORT_SYMBOL_GPL(hid_set_field);
989
990 static struct hid_report *hid_get_report(struct hid_report_enum *report_enum,
991                 const u8 *data)
992 {
993         struct hid_report *report;
994         unsigned int n = 0;     /* Normally report number is 0 */
995
996         /* Device uses numbered reports, data[0] is report number */
997         if (report_enum->numbered)
998                 n = *data;
999
1000         report = report_enum->report_id_hash[n];
1001         if (report == NULL)
1002                 dbg_hid("undefined report_id %u received\n", n);
1003
1004         return report;
1005 }
1006
1007 void hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
1008                 int interrupt)
1009 {
1010         struct hid_report_enum *report_enum = hid->report_enum + type;
1011         struct hid_report *report;
1012         unsigned int a;
1013         int rsize, csize = size;
1014         u8 *cdata = data;
1015
1016         report = hid_get_report(report_enum, data);
1017         if (!report)
1018                 return;
1019
1020         if (report_enum->numbered) {
1021                 cdata++;
1022                 csize--;
1023         }
1024
1025         rsize = ((report->size - 1) >> 3) + 1;
1026
1027         if (csize < rsize) {
1028                 dbg_hid("report %d is too short, (%d < %d)\n", report->id,
1029                                 csize, rsize);
1030                 memset(cdata + csize, 0, rsize - csize);
1031         }
1032
1033         if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event)
1034                 hid->hiddev_report_event(hid, report);
1035         if (hid->claimed & HID_CLAIMED_HIDRAW)
1036                 hidraw_report_event(hid, data, size);
1037
1038         for (a = 0; a < report->maxfield; a++)
1039                 hid_input_field(hid, report->field[a], cdata, interrupt);
1040
1041         if (hid->claimed & HID_CLAIMED_INPUT)
1042                 hidinput_report_event(hid, report);
1043 }
1044 EXPORT_SYMBOL_GPL(hid_report_raw_event);
1045
1046 /**
1047  * hid_input_report - report data from lower layer (usb, bt...)
1048  *
1049  * @hid: hid device
1050  * @type: HID report type (HID_*_REPORT)
1051  * @data: report contents
1052  * @size: size of data parameter
1053  * @interrupt: distinguish between interrupt and control transfers
1054  *
1055  * This is data entry for lower layers.
1056  */
1057 int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt)
1058 {
1059         struct hid_report_enum *report_enum;
1060         struct hid_driver *hdrv;
1061         struct hid_report *report;
1062         char *buf;
1063         unsigned int i;
1064         int ret;
1065
1066         if (!hid || !hid->driver)
1067                 return -ENODEV;
1068         report_enum = hid->report_enum + type;
1069         hdrv = hid->driver;
1070
1071         if (!size) {
1072                 dbg_hid("empty report\n");
1073                 return -1;
1074         }
1075
1076         buf = kmalloc(sizeof(char) * HID_DEBUG_BUFSIZE, GFP_ATOMIC);
1077
1078         if (!buf)
1079                 goto nomem;
1080
1081         /* dump the report */
1082         snprintf(buf, HID_DEBUG_BUFSIZE - 1,
1083                         "\nreport (size %u) (%snumbered) = ", size, report_enum->numbered ? "" : "un");
1084         hid_debug_event(hid, buf);
1085
1086         for (i = 0; i < size; i++) {
1087                 snprintf(buf, HID_DEBUG_BUFSIZE - 1,
1088                                 " %02x", data[i]);
1089                 hid_debug_event(hid, buf);
1090         }
1091         hid_debug_event(hid, "\n");
1092         kfree(buf);
1093
1094 nomem:
1095         report = hid_get_report(report_enum, data);
1096
1097         if (!report)
1098                 return -1;
1099
1100         if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) {
1101                 ret = hdrv->raw_event(hid, report, data, size);
1102                 if (ret != 0)
1103                         return ret < 0 ? ret : 0;
1104         }
1105
1106         hid_report_raw_event(hid, type, data, size, interrupt);
1107
1108         return 0;
1109 }
1110 EXPORT_SYMBOL_GPL(hid_input_report);
1111
1112 static bool hid_match_one_id(struct hid_device *hdev,
1113                 const struct hid_device_id *id)
1114 {
1115         return id->bus == hdev->bus &&
1116                 (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) &&
1117                 (id->product == HID_ANY_ID || id->product == hdev->product);
1118 }
1119
1120 static const struct hid_device_id *hid_match_id(struct hid_device *hdev,
1121                 const struct hid_device_id *id)
1122 {
1123         for (; id->bus; id++)
1124                 if (hid_match_one_id(hdev, id))
1125                         return id;
1126
1127         return NULL;
1128 }
1129
1130 static const struct hid_device_id hid_hiddev_list[] = {
1131         { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) },
1132         { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) },
1133         { }
1134 };
1135
1136 static bool hid_hiddev(struct hid_device *hdev)
1137 {
1138         return !!hid_match_id(hdev, hid_hiddev_list);
1139 }
1140
1141 int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
1142 {
1143         static const char *types[] = { "Device", "Pointer", "Mouse", "Device",
1144                 "Joystick", "Gamepad", "Keyboard", "Keypad",
1145                 "Multi-Axis Controller"
1146         };
1147         const char *type, *bus;
1148         char buf[64];
1149         unsigned int i;
1150         int len;
1151
1152         if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE)
1153                 connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV);
1154         if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE)
1155                 connect_mask |= HID_CONNECT_HIDINPUT_FORCE;
1156         if (hdev->bus != BUS_USB)
1157                 connect_mask &= ~HID_CONNECT_HIDDEV;
1158         if (hid_hiddev(hdev))
1159                 connect_mask |= HID_CONNECT_HIDDEV_FORCE;
1160
1161         if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,
1162                                 connect_mask & HID_CONNECT_HIDINPUT_FORCE))
1163                 hdev->claimed |= HID_CLAIMED_INPUT;
1164         if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect &&
1165                         !hdev->hiddev_connect(hdev,
1166                                 connect_mask & HID_CONNECT_HIDDEV_FORCE))
1167                 hdev->claimed |= HID_CLAIMED_HIDDEV;
1168         if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev))
1169                 hdev->claimed |= HID_CLAIMED_HIDRAW;
1170
1171         if (!hdev->claimed) {
1172                 dev_err(&hdev->dev, "claimed by neither input, hiddev nor "
1173                                 "hidraw\n");
1174                 return -ENODEV;
1175         }
1176
1177         if ((hdev->claimed & HID_CLAIMED_INPUT) &&
1178                         (connect_mask & HID_CONNECT_FF) && hdev->ff_init)
1179                 hdev->ff_init(hdev);
1180
1181         len = 0;
1182         if (hdev->claimed & HID_CLAIMED_INPUT)
1183                 len += sprintf(buf + len, "input");
1184         if (hdev->claimed & HID_CLAIMED_HIDDEV)
1185                 len += sprintf(buf + len, "%shiddev%d", len ? "," : "",
1186                                 hdev->minor);
1187         if (hdev->claimed & HID_CLAIMED_HIDRAW)
1188                 len += sprintf(buf + len, "%shidraw%d", len ? "," : "",
1189                                 ((struct hidraw *)hdev->hidraw)->minor);
1190
1191         type = "Device";
1192         for (i = 0; i < hdev->maxcollection; i++) {
1193                 struct hid_collection *col = &hdev->collection[i];
1194                 if (col->type == HID_COLLECTION_APPLICATION &&
1195                    (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
1196                    (col->usage & 0xffff) < ARRAY_SIZE(types)) {
1197                         type = types[col->usage & 0xffff];
1198                         break;
1199                 }
1200         }
1201
1202         switch (hdev->bus) {
1203         case BUS_USB:
1204                 bus = "USB";
1205                 break;
1206         case BUS_BLUETOOTH:
1207                 bus = "BLUETOOTH";
1208                 break;
1209         default:
1210                 bus = "<UNKNOWN>";
1211         }
1212
1213         dev_info(&hdev->dev, "%s: %s HID v%x.%02x %s [%s] on %s\n",
1214                         buf, bus, hdev->version >> 8, hdev->version & 0xff,
1215                         type, hdev->name, hdev->phys);
1216
1217         return 0;
1218 }
1219 EXPORT_SYMBOL_GPL(hid_connect);
1220
1221 void hid_disconnect(struct hid_device *hdev)
1222 {
1223         if (hdev->claimed & HID_CLAIMED_INPUT)
1224                 hidinput_disconnect(hdev);
1225         if (hdev->claimed & HID_CLAIMED_HIDDEV)
1226                 hdev->hiddev_disconnect(hdev);
1227         if (hdev->claimed & HID_CLAIMED_HIDRAW)
1228                 hidraw_disconnect(hdev);
1229 }
1230 EXPORT_SYMBOL_GPL(hid_disconnect);
1231
1232 /* a list of devices for which there is a specialized driver on HID bus */
1233 static const struct hid_device_id hid_blacklist[] = {
1234         { HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M1968) },
1235         { HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M2256) },
1236         { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
1237         { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
1238         { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) },
1239 #if defined(CONFIG_HID_ACRUX_FF) || defined(CONFIG_HID_ACRUX_FF_MODULE)
1240         { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) },
1241 #endif
1242         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ATV_IRCONTROL) },
1243         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
1244         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
1245         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
1246         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) },
1247         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1248         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1249         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1250         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1251         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1252         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1253         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1254         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1255         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1256         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1257         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1258         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) },
1259         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) },
1260         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) },
1261         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) },
1262         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) },
1263         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) },
1264         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1265         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1266         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
1267         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) },
1268         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) },
1269         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) },
1270         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1271         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1272         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1273         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1274         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1275         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
1276         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1277         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1278         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
1279         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) },
1280         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) },
1281         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) },
1282         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1283         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1284         { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_T91MT) },
1285         { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
1286         { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
1287         { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
1288         { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
1289         { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
1290         { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
1291         { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
1292         { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
1293         { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
1294         { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
1295         { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
1296         { HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) },
1297         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) },
1298         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) },
1299         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) },
1300         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
1301         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
1302         { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
1303         { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH) },
1304         { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1) },
1305         { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH2) },
1306         { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH3) },
1307         { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH4) },
1308         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
1309         { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
1310         { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) },
1311         { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) },
1312         { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
1313         { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) },
1314         { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) },
1315         { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
1316         { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
1317         { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
1318         { HID_USB_DEVICE(USB_VENDOR_ID_HANVON, USB_DEVICE_ID_HANVON_MULTITOUCH) },
1319         { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
1320         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
1321         { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
1322         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
1323         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
1324         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) },
1325         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) },
1326         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) },
1327         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) },
1328         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) },
1329         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) },
1330         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) },
1331         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) },
1332         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) },
1333         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) },
1334         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
1335         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },
1336         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
1337         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) },
1338         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
1339         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) },
1340         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
1341         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
1342         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
1343         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) },
1344         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) },
1345         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) },
1346         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) },
1347         { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
1348         { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
1349         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) },
1350         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) },
1351         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) },
1352         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) },
1353         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
1354         { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
1355         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
1356         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) },
1357         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) },
1358         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) },
1359         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) },
1360         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) },
1361         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) },
1362         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) },
1363         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) },
1364         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) },
1365         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) },
1366         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) },
1367         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) },
1368         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) },
1369         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) },
1370         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) },
1371         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) },
1372         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) },
1373         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) },
1374         { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
1375         { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
1376         { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
1377         { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN) },
1378         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
1379         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
1380         { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
1381         { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
1382         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1383         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1384         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
1385         { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM, USB_DEVICE_ID_MTP) },
1386         { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, USB_DEVICE_ID_MTP_STM) },
1387         { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX, USB_DEVICE_ID_MTP_SITRONIX) },
1388         { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
1389         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
1390         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
1391         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) },
1392         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) },
1393         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
1394         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) },
1395         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
1396         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) },
1397         { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
1398         { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
1399         { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
1400         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
1401         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
1402         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
1403         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
1404         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
1405         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
1406         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
1407         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
1408         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
1409         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
1410         { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
1411         { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
1412         { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
1413
1414         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
1415         { }
1416 };
1417
1418 struct hid_dynid {
1419         struct list_head list;
1420         struct hid_device_id id;
1421 };
1422
1423 /**
1424  * store_new_id - add a new HID device ID to this driver and re-probe devices
1425  * @driver: target device driver
1426  * @buf: buffer for scanning device ID data
1427  * @count: input size
1428  *
1429  * Adds a new dynamic hid device ID to this driver,
1430  * and causes the driver to probe for all devices again.
1431  */
1432 static ssize_t store_new_id(struct device_driver *drv, const char *buf,
1433                 size_t count)
1434 {
1435         struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1436         struct hid_dynid *dynid;
1437         __u32 bus, vendor, product;
1438         unsigned long driver_data = 0;
1439         int ret;
1440
1441         ret = sscanf(buf, "%x %x %x %lx",
1442                         &bus, &vendor, &product, &driver_data);
1443         if (ret < 3)
1444                 return -EINVAL;
1445
1446         dynid = kzalloc(sizeof(*dynid), GFP_KERNEL);
1447         if (!dynid)
1448                 return -ENOMEM;
1449
1450         dynid->id.bus = bus;
1451         dynid->id.vendor = vendor;
1452         dynid->id.product = product;
1453         dynid->id.driver_data = driver_data;
1454
1455         spin_lock(&hdrv->dyn_lock);
1456         list_add_tail(&dynid->list, &hdrv->dyn_list);
1457         spin_unlock(&hdrv->dyn_lock);
1458
1459         ret = 0;
1460         if (get_driver(&hdrv->driver)) {
1461                 ret = driver_attach(&hdrv->driver);
1462                 put_driver(&hdrv->driver);
1463         }
1464
1465         return ret ? : count;
1466 }
1467 static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
1468
1469 static void hid_free_dynids(struct hid_driver *hdrv)
1470 {
1471         struct hid_dynid *dynid, *n;
1472
1473         spin_lock(&hdrv->dyn_lock);
1474         list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) {
1475                 list_del(&dynid->list);
1476                 kfree(dynid);
1477         }
1478         spin_unlock(&hdrv->dyn_lock);
1479 }
1480
1481 static const struct hid_device_id *hid_match_device(struct hid_device *hdev,
1482                 struct hid_driver *hdrv)
1483 {
1484         struct hid_dynid *dynid;
1485
1486         spin_lock(&hdrv->dyn_lock);
1487         list_for_each_entry(dynid, &hdrv->dyn_list, list) {
1488                 if (hid_match_one_id(hdev, &dynid->id)) {
1489                         spin_unlock(&hdrv->dyn_lock);
1490                         return &dynid->id;
1491                 }
1492         }
1493         spin_unlock(&hdrv->dyn_lock);
1494
1495         return hid_match_id(hdev, hdrv->id_table);
1496 }
1497
1498 static int hid_bus_match(struct device *dev, struct device_driver *drv)
1499 {
1500         struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1501         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1502
1503         if (!hid_match_device(hdev, hdrv))
1504                 return 0;
1505
1506         /* generic wants all non-blacklisted */
1507         if (!strncmp(hdrv->name, "generic-", 8))
1508                 return !hid_match_id(hdev, hid_blacklist);
1509
1510         return 1;
1511 }
1512
1513 static int hid_device_probe(struct device *dev)
1514 {
1515         struct hid_driver *hdrv = container_of(dev->driver,
1516                         struct hid_driver, driver);
1517         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1518         const struct hid_device_id *id;
1519         int ret = 0;
1520
1521         if (!hdev->driver) {
1522                 id = hid_match_device(hdev, hdrv);
1523                 if (id == NULL)
1524                         return -ENODEV;
1525
1526                 hdev->driver = hdrv;
1527                 if (hdrv->probe) {
1528                         ret = hdrv->probe(hdev, id);
1529                 } else { /* default probe */
1530                         ret = hid_parse(hdev);
1531                         if (!ret)
1532                                 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
1533                 }
1534                 if (ret)
1535                         hdev->driver = NULL;
1536         }
1537         return ret;
1538 }
1539
1540 static int hid_device_remove(struct device *dev)
1541 {
1542         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1543         struct hid_driver *hdrv = hdev->driver;
1544
1545         if (hdrv) {
1546                 if (hdrv->remove)
1547                         hdrv->remove(hdev);
1548                 else /* default remove */
1549                         hid_hw_stop(hdev);
1550                 hdev->driver = NULL;
1551         }
1552
1553         return 0;
1554 }
1555
1556 static int hid_uevent(struct device *dev, struct kobj_uevent_env *env)
1557 {
1558         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1559
1560         if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X",
1561                         hdev->bus, hdev->vendor, hdev->product))
1562                 return -ENOMEM;
1563
1564         if (add_uevent_var(env, "HID_NAME=%s", hdev->name))
1565                 return -ENOMEM;
1566
1567         if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys))
1568                 return -ENOMEM;
1569
1570         if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq))
1571                 return -ENOMEM;
1572
1573         if (add_uevent_var(env, "MODALIAS=hid:b%04Xv%08Xp%08X",
1574                         hdev->bus, hdev->vendor, hdev->product))
1575                 return -ENOMEM;
1576
1577         return 0;
1578 }
1579
1580 static struct bus_type hid_bus_type = {
1581         .name           = "hid",
1582         .match          = hid_bus_match,
1583         .probe          = hid_device_probe,
1584         .remove         = hid_device_remove,
1585         .uevent         = hid_uevent,
1586 };
1587
1588 /* a list of devices that shouldn't be handled by HID core at all */
1589 static const struct hid_device_id hid_ignore_list[] = {
1590         { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) },
1591         { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) },
1592         { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) },
1593         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) },
1594         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) },
1595         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) },
1596         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) },
1597         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) },
1598         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) },
1599         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) },
1600         { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) },
1601         { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) },
1602         { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)},
1603         { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)},
1604         { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) },
1605         { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) },
1606         { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) },
1607         { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) },
1608         { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) },
1609         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) },
1610         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) },
1611         { HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) },
1612         { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) },
1613         { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
1614         { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x0004) },
1615         { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
1616         { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
1617         { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
1618         { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) },
1619         { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0003) },
1620         { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) },
1621         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) },
1622         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) },
1623         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) },
1624         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) },
1625         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) },
1626         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) },
1627         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) },
1628         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) },
1629         { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) },
1630         { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) },
1631         { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) },
1632         { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) },
1633         { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) },
1634         { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) },
1635         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) },
1636         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) },
1637         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) },
1638         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) },
1639         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) },
1640         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) },
1641         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) },
1642         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) },
1643         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) },
1644         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) },
1645         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) },
1646         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) },
1647         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) },
1648         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) },
1649         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) },
1650         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) },
1651         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) },
1652         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) },
1653         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) },
1654         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) },
1655         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) },
1656         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) },
1657         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) },
1658         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) },
1659         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) },
1660         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) },
1661         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) },
1662         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) },
1663         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) },
1664         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) },
1665         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) },
1666         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) },
1667         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) },
1668         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) },
1669         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) },
1670         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) },
1671         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) },
1672         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) },
1673         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) },
1674         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) },
1675         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) },
1676         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) },
1677         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) },
1678         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) },
1679         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) },
1680         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) },
1681         { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) },
1682         { HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_JESS_YUREX) },
1683         { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) },
1684         { HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) },
1685         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) },
1686         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) },
1687         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) },
1688         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) },
1689         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) },
1690         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) },
1691         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) },
1692         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) },
1693         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY1) },
1694         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) },
1695         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) },
1696         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) },
1697         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) },
1698         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) },
1699         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) },
1700         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) },
1701         { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) },
1702         { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) },
1703         { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) },
1704         { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) },
1705         { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) },
1706         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) },
1707         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) },
1708         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) },
1709         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) },
1710         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) },
1711         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) },
1712         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) },
1713         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) },
1714         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) },
1715         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) },
1716         { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) },
1717         { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) },
1718         { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) },
1719         { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
1720         { HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
1721         { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
1722         { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) },
1723         { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
1724         { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },
1725         { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) },
1726         { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) },
1727         { HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) },
1728         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) },
1729         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) },
1730         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) },
1731         { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) },
1732         { }
1733 };
1734
1735 /**
1736  * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer
1737  *
1738  * There are composite devices for which we want to ignore only a certain
1739  * interface. This is a list of devices for which only the mouse interface will
1740  * be ignored. This allows a dedicated driver to take care of the interface.
1741  */
1742 static const struct hid_device_id hid_mouse_ignore_list[] = {
1743         /* appletouch driver */
1744         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1745         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1746         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1747         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1748         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1749         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1750         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1751         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1752         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1753         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1754         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1755         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1756         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1757         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
1758         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1759         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1760         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1761         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1762         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1763         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
1764         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1765         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1766         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
1767         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1768         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1769         { }
1770 };
1771
1772 static bool hid_ignore(struct hid_device *hdev)
1773 {
1774         switch (hdev->vendor) {
1775         case USB_VENDOR_ID_CODEMERCS:
1776                 /* ignore all Code Mercenaries IOWarrior devices */
1777                 if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST &&
1778                                 hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST)
1779                         return true;
1780                 break;
1781         case USB_VENDOR_ID_LOGITECH:
1782                 if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST &&
1783                                 hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST)
1784                         return true;
1785                 break;
1786         case USB_VENDOR_ID_SOUNDGRAPH:
1787                 if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST &&
1788                     hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST)
1789                         return true;
1790                 break;
1791         case USB_VENDOR_ID_HANWANG:
1792                 if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST &&
1793                     hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST)
1794                         return true;
1795                 break;
1796         }
1797
1798         if (hdev->type == HID_TYPE_USBMOUSE &&
1799                         hid_match_id(hdev, hid_mouse_ignore_list))
1800                 return true;
1801
1802         return !!hid_match_id(hdev, hid_ignore_list);
1803 }
1804
1805 int hid_add_device(struct hid_device *hdev)
1806 {
1807         static atomic_t id = ATOMIC_INIT(0);
1808         int ret;
1809
1810         if (WARN_ON(hdev->status & HID_STAT_ADDED))
1811                 return -EBUSY;
1812
1813         /* we need to kill them here, otherwise they will stay allocated to
1814          * wait for coming driver */
1815         if (!(hdev->quirks & HID_QUIRK_NO_IGNORE)
1816             && (hid_ignore(hdev) || (hdev->quirks & HID_QUIRK_IGNORE)))
1817                 return -ENODEV;
1818
1819         /* XXX hack, any other cleaner solution after the driver core
1820          * is converted to allow more than 20 bytes as the device name? */
1821         dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
1822                      hdev->vendor, hdev->product, atomic_inc_return(&id));
1823
1824         hid_debug_register(hdev, dev_name(&hdev->dev));
1825         ret = device_add(&hdev->dev);
1826         if (!ret)
1827                 hdev->status |= HID_STAT_ADDED;
1828         else
1829                 hid_debug_unregister(hdev);
1830
1831         return ret;
1832 }
1833 EXPORT_SYMBOL_GPL(hid_add_device);
1834
1835 /**
1836  * hid_allocate_device - allocate new hid device descriptor
1837  *
1838  * Allocate and initialize hid device, so that hid_destroy_device might be
1839  * used to free it.
1840  *
1841  * New hid_device pointer is returned on success, otherwise ERR_PTR encoded
1842  * error value.
1843  */
1844 struct hid_device *hid_allocate_device(void)
1845 {
1846         struct hid_device *hdev;
1847         unsigned int i;
1848         int ret = -ENOMEM;
1849
1850         hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
1851         if (hdev == NULL)
1852                 return ERR_PTR(ret);
1853
1854         device_initialize(&hdev->dev);
1855         hdev->dev.release = hid_device_release;
1856         hdev->dev.bus = &hid_bus_type;
1857
1858         hdev->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS,
1859                         sizeof(struct hid_collection), GFP_KERNEL);
1860         if (hdev->collection == NULL)
1861                 goto err;
1862         hdev->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
1863
1864         for (i = 0; i < HID_REPORT_TYPES; i++)
1865                 INIT_LIST_HEAD(&hdev->report_enum[i].report_list);
1866
1867         init_waitqueue_head(&hdev->debug_wait);
1868         INIT_LIST_HEAD(&hdev->debug_list);
1869
1870         return hdev;
1871 err:
1872         put_device(&hdev->dev);
1873         return ERR_PTR(ret);
1874 }
1875 EXPORT_SYMBOL_GPL(hid_allocate_device);
1876
1877 static void hid_remove_device(struct hid_device *hdev)
1878 {
1879         if (hdev->status & HID_STAT_ADDED) {
1880                 device_del(&hdev->dev);
1881                 hid_debug_unregister(hdev);
1882                 hdev->status &= ~HID_STAT_ADDED;
1883         }
1884 }
1885
1886 /**
1887  * hid_destroy_device - free previously allocated device
1888  *
1889  * @hdev: hid device
1890  *
1891  * If you allocate hid_device through hid_allocate_device, you should ever
1892  * free by this function.
1893  */
1894 void hid_destroy_device(struct hid_device *hdev)
1895 {
1896         hid_remove_device(hdev);
1897         put_device(&hdev->dev);
1898 }
1899 EXPORT_SYMBOL_GPL(hid_destroy_device);
1900
1901 int __hid_register_driver(struct hid_driver *hdrv, struct module *owner,
1902                 const char *mod_name)
1903 {
1904         int ret;
1905
1906         hdrv->driver.name = hdrv->name;
1907         hdrv->driver.bus = &hid_bus_type;
1908         hdrv->driver.owner = owner;
1909         hdrv->driver.mod_name = mod_name;
1910
1911         INIT_LIST_HEAD(&hdrv->dyn_list);
1912         spin_lock_init(&hdrv->dyn_lock);
1913
1914         ret = driver_register(&hdrv->driver);
1915         if (ret)
1916                 return ret;
1917
1918         ret = driver_create_file(&hdrv->driver, &driver_attr_new_id);
1919         if (ret)
1920                 driver_unregister(&hdrv->driver);
1921
1922         return ret;
1923 }
1924 EXPORT_SYMBOL_GPL(__hid_register_driver);
1925
1926 void hid_unregister_driver(struct hid_driver *hdrv)
1927 {
1928         driver_remove_file(&hdrv->driver, &driver_attr_new_id);
1929         driver_unregister(&hdrv->driver);
1930         hid_free_dynids(hdrv);
1931 }
1932 EXPORT_SYMBOL_GPL(hid_unregister_driver);
1933
1934 int hid_check_keys_pressed(struct hid_device *hid)
1935 {
1936         struct hid_input *hidinput;
1937         int i;
1938
1939         if (!(hid->claimed & HID_CLAIMED_INPUT))
1940                 return 0;
1941
1942         list_for_each_entry(hidinput, &hid->inputs, list) {
1943                 for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++)
1944                         if (hidinput->input->key[i])
1945                                 return 1;
1946         }
1947
1948         return 0;
1949 }
1950
1951 EXPORT_SYMBOL_GPL(hid_check_keys_pressed);
1952
1953 static int __init hid_init(void)
1954 {
1955         int ret;
1956
1957         if (hid_debug)
1958                 printk(KERN_WARNING "HID: hid_debug is now used solely for parser and driver debugging.\n"
1959                                 "HID: debugfs is now used for inspecting the device (report descriptor, reports)\n");
1960
1961         ret = bus_register(&hid_bus_type);
1962         if (ret) {
1963                 printk(KERN_ERR "HID: can't register hid bus\n");
1964                 goto err;
1965         }
1966
1967         ret = hidraw_init();
1968         if (ret)
1969                 goto err_bus;
1970
1971         hid_debug_init();
1972
1973         return 0;
1974 err_bus:
1975         bus_unregister(&hid_bus_type);
1976 err:
1977         return ret;
1978 }
1979
1980 static void __exit hid_exit(void)
1981 {
1982         hid_debug_exit();
1983         hidraw_exit();
1984         bus_unregister(&hid_bus_type);
1985 }
1986
1987 module_init(hid_init);
1988 module_exit(hid_exit);
1989
1990 MODULE_AUTHOR("Andreas Gal");
1991 MODULE_AUTHOR("Vojtech Pavlik");
1992 MODULE_AUTHOR("Jiri Kosina");
1993 MODULE_LICENSE(DRIVER_LICENSE);
1994