Merge branch 'upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/linville...
[linux-2.6.git] / drivers / usb / input / hid-core.c
1 /*
2  *  USB 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  */
8
9 /*
10  * This program is free software; you can redistribute it and/or modify it
11  * under the terms of the GNU General Public License as published by the Free
12  * Software Foundation; either version 2 of the License, or (at your option)
13  * any later version.
14  */
15
16 #include <linux/module.h>
17 #include <linux/slab.h>
18 #include <linux/init.h>
19 #include <linux/kernel.h>
20 #include <linux/sched.h>
21 #include <linux/list.h>
22 #include <linux/mm.h>
23 #include <linux/smp_lock.h>
24 #include <linux/spinlock.h>
25 #include <asm/unaligned.h>
26 #include <asm/byteorder.h>
27 #include <linux/input.h>
28 #include <linux/wait.h>
29
30 #undef DEBUG
31 #undef DEBUG_DATA
32
33 #include <linux/usb.h>
34
35 #include "hid.h"
36 #include <linux/hiddev.h>
37
38 /*
39  * Version Information
40  */
41
42 #define DRIVER_VERSION "v2.6"
43 #define DRIVER_AUTHOR "Andreas Gal, Vojtech Pavlik"
44 #define DRIVER_DESC "USB HID core driver"
45 #define DRIVER_LICENSE "GPL"
46
47 static char *hid_types[] = {"Device", "Pointer", "Mouse", "Device", "Joystick",
48                                 "Gamepad", "Keyboard", "Keypad", "Multi-Axis Controller"};
49 /*
50  * Module parameters.
51  */
52
53 static unsigned int hid_mousepoll_interval;
54 module_param_named(mousepoll, hid_mousepoll_interval, uint, 0644);
55 MODULE_PARM_DESC(mousepoll, "Polling interval of mice");
56
57 /*
58  * Register a new report for a device.
59  */
60
61 static struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
62 {
63         struct hid_report_enum *report_enum = device->report_enum + type;
64         struct hid_report *report;
65
66         if (report_enum->report_id_hash[id])
67                 return report_enum->report_id_hash[id];
68
69         if (!(report = kzalloc(sizeof(struct hid_report), GFP_KERNEL)))
70                 return NULL;
71
72         if (id != 0)
73                 report_enum->numbered = 1;
74
75         report->id = id;
76         report->type = type;
77         report->size = 0;
78         report->device = device;
79         report_enum->report_id_hash[id] = report;
80
81         list_add_tail(&report->list, &report_enum->report_list);
82
83         return report;
84 }
85
86 /*
87  * Register a new field for this report.
88  */
89
90 static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values)
91 {
92         struct hid_field *field;
93
94         if (report->maxfield == HID_MAX_FIELDS) {
95                 dbg("too many fields in report");
96                 return NULL;
97         }
98
99         if (!(field = kzalloc(sizeof(struct hid_field) + usages * sizeof(struct hid_usage)
100                 + values * sizeof(unsigned), GFP_KERNEL))) return NULL;
101
102         field->index = report->maxfield++;
103         report->field[field->index] = field;
104         field->usage = (struct hid_usage *)(field + 1);
105         field->value = (unsigned *)(field->usage + usages);
106         field->report = report;
107
108         return field;
109 }
110
111 /*
112  * Open a collection. The type/usage is pushed on the stack.
113  */
114
115 static int open_collection(struct hid_parser *parser, unsigned type)
116 {
117         struct hid_collection *collection;
118         unsigned usage;
119
120         usage = parser->local.usage[0];
121
122         if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) {
123                 dbg("collection stack overflow");
124                 return -1;
125         }
126
127         if (parser->device->maxcollection == parser->device->collection_size) {
128                 collection = kmalloc(sizeof(struct hid_collection) *
129                                 parser->device->collection_size * 2, GFP_KERNEL);
130                 if (collection == NULL) {
131                         dbg("failed to reallocate collection array");
132                         return -1;
133                 }
134                 memcpy(collection, parser->device->collection,
135                         sizeof(struct hid_collection) *
136                         parser->device->collection_size);
137                 memset(collection + parser->device->collection_size, 0,
138                         sizeof(struct hid_collection) *
139                         parser->device->collection_size);
140                 kfree(parser->device->collection);
141                 parser->device->collection = collection;
142                 parser->device->collection_size *= 2;
143         }
144
145         parser->collection_stack[parser->collection_stack_ptr++] =
146                 parser->device->maxcollection;
147
148         collection = parser->device->collection +
149                 parser->device->maxcollection++;
150         collection->type = type;
151         collection->usage = usage;
152         collection->level = parser->collection_stack_ptr - 1;
153
154         if (type == HID_COLLECTION_APPLICATION)
155                 parser->device->maxapplication++;
156
157         return 0;
158 }
159
160 /*
161  * Close a collection.
162  */
163
164 static int close_collection(struct hid_parser *parser)
165 {
166         if (!parser->collection_stack_ptr) {
167                 dbg("collection stack underflow");
168                 return -1;
169         }
170         parser->collection_stack_ptr--;
171         return 0;
172 }
173
174 /*
175  * Climb up the stack, search for the specified collection type
176  * and return the usage.
177  */
178
179 static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type)
180 {
181         int n;
182         for (n = parser->collection_stack_ptr - 1; n >= 0; n--)
183                 if (parser->device->collection[parser->collection_stack[n]].type == type)
184                         return parser->device->collection[parser->collection_stack[n]].usage;
185         return 0; /* we know nothing about this usage type */
186 }
187
188 /*
189  * Add a usage to the temporary parser table.
190  */
191
192 static int hid_add_usage(struct hid_parser *parser, unsigned usage)
193 {
194         if (parser->local.usage_index >= HID_MAX_USAGES) {
195                 dbg("usage index exceeded");
196                 return -1;
197         }
198         parser->local.usage[parser->local.usage_index] = usage;
199         parser->local.collection_index[parser->local.usage_index] =
200                 parser->collection_stack_ptr ?
201                 parser->collection_stack[parser->collection_stack_ptr - 1] : 0;
202         parser->local.usage_index++;
203         return 0;
204 }
205
206 /*
207  * Register a new field for this report.
208  */
209
210 static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags)
211 {
212         struct hid_report *report;
213         struct hid_field *field;
214         int usages;
215         unsigned offset;
216         int i;
217
218         if (!(report = hid_register_report(parser->device, report_type, parser->global.report_id))) {
219                 dbg("hid_register_report failed");
220                 return -1;
221         }
222
223         if (parser->global.logical_maximum < parser->global.logical_minimum) {
224                 dbg("logical range invalid %d %d", parser->global.logical_minimum, parser->global.logical_maximum);
225                 return -1;
226         }
227
228         offset = report->size;
229         report->size += parser->global.report_size * parser->global.report_count;
230
231         if (!parser->local.usage_index) /* Ignore padding fields */
232                 return 0;
233
234         usages = max_t(int, parser->local.usage_index, parser->global.report_count);
235
236         if ((field = hid_register_field(report, usages, parser->global.report_count)) == NULL)
237                 return 0;
238
239         field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
240         field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
241         field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
242
243         for (i = 0; i < usages; i++) {
244                 int j = i;
245                 /* Duplicate the last usage we parsed if we have excess values */
246                 if (i >= parser->local.usage_index)
247                         j = parser->local.usage_index - 1;
248                 field->usage[i].hid = parser->local.usage[j];
249                 field->usage[i].collection_index =
250                         parser->local.collection_index[j];
251         }
252
253         field->maxusage = usages;
254         field->flags = flags;
255         field->report_offset = offset;
256         field->report_type = report_type;
257         field->report_size = parser->global.report_size;
258         field->report_count = parser->global.report_count;
259         field->logical_minimum = parser->global.logical_minimum;
260         field->logical_maximum = parser->global.logical_maximum;
261         field->physical_minimum = parser->global.physical_minimum;
262         field->physical_maximum = parser->global.physical_maximum;
263         field->unit_exponent = parser->global.unit_exponent;
264         field->unit = parser->global.unit;
265
266         return 0;
267 }
268
269 /*
270  * Read data value from item.
271  */
272
273 static __inline__ __u32 item_udata(struct hid_item *item)
274 {
275         switch (item->size) {
276                 case 1: return item->data.u8;
277                 case 2: return item->data.u16;
278                 case 4: return item->data.u32;
279         }
280         return 0;
281 }
282
283 static __inline__ __s32 item_sdata(struct hid_item *item)
284 {
285         switch (item->size) {
286                 case 1: return item->data.s8;
287                 case 2: return item->data.s16;
288                 case 4: return item->data.s32;
289         }
290         return 0;
291 }
292
293 /*
294  * Process a global item.
295  */
296
297 static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
298 {
299         switch (item->tag) {
300
301                 case HID_GLOBAL_ITEM_TAG_PUSH:
302
303                         if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
304                                 dbg("global enviroment stack overflow");
305                                 return -1;
306                         }
307
308                         memcpy(parser->global_stack + parser->global_stack_ptr++,
309                                 &parser->global, sizeof(struct hid_global));
310                         return 0;
311
312                 case HID_GLOBAL_ITEM_TAG_POP:
313
314                         if (!parser->global_stack_ptr) {
315                                 dbg("global enviroment stack underflow");
316                                 return -1;
317                         }
318
319                         memcpy(&parser->global, parser->global_stack + --parser->global_stack_ptr,
320                                 sizeof(struct hid_global));
321                         return 0;
322
323                 case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
324                         parser->global.usage_page = item_udata(item);
325                         return 0;
326
327                 case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
328                         parser->global.logical_minimum = item_sdata(item);
329                         return 0;
330
331                 case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
332                         if (parser->global.logical_minimum < 0)
333                                 parser->global.logical_maximum = item_sdata(item);
334                         else
335                                 parser->global.logical_maximum = item_udata(item);
336                         return 0;
337
338                 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
339                         parser->global.physical_minimum = item_sdata(item);
340                         return 0;
341
342                 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
343                         if (parser->global.physical_minimum < 0)
344                                 parser->global.physical_maximum = item_sdata(item);
345                         else
346                                 parser->global.physical_maximum = item_udata(item);
347                         return 0;
348
349                 case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
350                         parser->global.unit_exponent = item_sdata(item);
351                         return 0;
352
353                 case HID_GLOBAL_ITEM_TAG_UNIT:
354                         parser->global.unit = item_udata(item);
355                         return 0;
356
357                 case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
358                         if ((parser->global.report_size = item_udata(item)) > 32) {
359                                 dbg("invalid report_size %d", parser->global.report_size);
360                                 return -1;
361                         }
362                         return 0;
363
364                 case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
365                         if ((parser->global.report_count = item_udata(item)) > HID_MAX_USAGES) {
366                                 dbg("invalid report_count %d", parser->global.report_count);
367                                 return -1;
368                         }
369                         return 0;
370
371                 case HID_GLOBAL_ITEM_TAG_REPORT_ID:
372                         if ((parser->global.report_id = item_udata(item)) == 0) {
373                                 dbg("report_id 0 is invalid");
374                                 return -1;
375                         }
376                         return 0;
377
378                 default:
379                         dbg("unknown global tag 0x%x", item->tag);
380                         return -1;
381         }
382 }
383
384 /*
385  * Process a local item.
386  */
387
388 static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
389 {
390         __u32 data;
391         unsigned n;
392
393         if (item->size == 0) {
394                 dbg("item data expected for local item");
395                 return -1;
396         }
397
398         data = item_udata(item);
399
400         switch (item->tag) {
401
402                 case HID_LOCAL_ITEM_TAG_DELIMITER:
403
404                         if (data) {
405                                 /*
406                                  * We treat items before the first delimiter
407                                  * as global to all usage sets (branch 0).
408                                  * In the moment we process only these global
409                                  * items and the first delimiter set.
410                                  */
411                                 if (parser->local.delimiter_depth != 0) {
412                                         dbg("nested delimiters");
413                                         return -1;
414                                 }
415                                 parser->local.delimiter_depth++;
416                                 parser->local.delimiter_branch++;
417                         } else {
418                                 if (parser->local.delimiter_depth < 1) {
419                                         dbg("bogus close delimiter");
420                                         return -1;
421                                 }
422                                 parser->local.delimiter_depth--;
423                         }
424                         return 1;
425
426                 case HID_LOCAL_ITEM_TAG_USAGE:
427
428                         if (parser->local.delimiter_branch > 1) {
429                                 dbg("alternative usage ignored");
430                                 return 0;
431                         }
432
433                         if (item->size <= 2)
434                                 data = (parser->global.usage_page << 16) + data;
435
436                         return hid_add_usage(parser, data);
437
438                 case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
439
440                         if (parser->local.delimiter_branch > 1) {
441                                 dbg("alternative usage ignored");
442                                 return 0;
443                         }
444
445                         if (item->size <= 2)
446                                 data = (parser->global.usage_page << 16) + data;
447
448                         parser->local.usage_minimum = data;
449                         return 0;
450
451                 case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
452
453                         if (parser->local.delimiter_branch > 1) {
454                                 dbg("alternative usage ignored");
455                                 return 0;
456                         }
457
458                         if (item->size <= 2)
459                                 data = (parser->global.usage_page << 16) + data;
460
461                         for (n = parser->local.usage_minimum; n <= data; n++)
462                                 if (hid_add_usage(parser, n)) {
463                                         dbg("hid_add_usage failed\n");
464                                         return -1;
465                                 }
466                         return 0;
467
468                 default:
469
470                         dbg("unknown local item tag 0x%x", item->tag);
471                         return 0;
472         }
473         return 0;
474 }
475
476 /*
477  * Process a main item.
478  */
479
480 static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
481 {
482         __u32 data;
483         int ret;
484
485         data = item_udata(item);
486
487         switch (item->tag) {
488                 case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
489                         ret = open_collection(parser, data & 0xff);
490                         break;
491                 case HID_MAIN_ITEM_TAG_END_COLLECTION:
492                         ret = close_collection(parser);
493                         break;
494                 case HID_MAIN_ITEM_TAG_INPUT:
495                         ret = hid_add_field(parser, HID_INPUT_REPORT, data);
496                         break;
497                 case HID_MAIN_ITEM_TAG_OUTPUT:
498                         ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
499                         break;
500                 case HID_MAIN_ITEM_TAG_FEATURE:
501                         ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
502                         break;
503                 default:
504                         dbg("unknown main item tag 0x%x", item->tag);
505                         ret = 0;
506         }
507
508         memset(&parser->local, 0, sizeof(parser->local));       /* Reset the local parser environment */
509
510         return ret;
511 }
512
513 /*
514  * Process a reserved item.
515  */
516
517 static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
518 {
519         dbg("reserved item type, tag 0x%x", item->tag);
520         return 0;
521 }
522
523 /*
524  * Free a report and all registered fields. The field->usage and
525  * field->value table's are allocated behind the field, so we need
526  * only to free(field) itself.
527  */
528
529 static void hid_free_report(struct hid_report *report)
530 {
531         unsigned n;
532
533         for (n = 0; n < report->maxfield; n++)
534                 kfree(report->field[n]);
535         kfree(report);
536 }
537
538 /*
539  * Free a device structure, all reports, and all fields.
540  */
541
542 static void hid_free_device(struct hid_device *device)
543 {
544         unsigned i,j;
545
546         hid_ff_exit(device);
547
548         for (i = 0; i < HID_REPORT_TYPES; i++) {
549                 struct hid_report_enum *report_enum = device->report_enum + i;
550
551                 for (j = 0; j < 256; j++) {
552                         struct hid_report *report = report_enum->report_id_hash[j];
553                         if (report)
554                                 hid_free_report(report);
555                 }
556         }
557
558         kfree(device->rdesc);
559         kfree(device);
560 }
561
562 /*
563  * Fetch a report description item from the data stream. We support long
564  * items, though they are not used yet.
565  */
566
567 static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
568 {
569         u8 b;
570
571         if ((end - start) <= 0)
572                 return NULL;
573
574         b = *start++;
575
576         item->type = (b >> 2) & 3;
577         item->tag  = (b >> 4) & 15;
578
579         if (item->tag == HID_ITEM_TAG_LONG) {
580
581                 item->format = HID_ITEM_FORMAT_LONG;
582
583                 if ((end - start) < 2)
584                         return NULL;
585
586                 item->size = *start++;
587                 item->tag  = *start++;
588
589                 if ((end - start) < item->size)
590                         return NULL;
591
592                 item->data.longdata = start;
593                 start += item->size;
594                 return start;
595         }
596
597         item->format = HID_ITEM_FORMAT_SHORT;
598         item->size = b & 3;
599
600         switch (item->size) {
601
602                 case 0:
603                         return start;
604
605                 case 1:
606                         if ((end - start) < 1)
607                                 return NULL;
608                         item->data.u8 = *start++;
609                         return start;
610
611                 case 2:
612                         if ((end - start) < 2)
613                                 return NULL;
614                         item->data.u16 = le16_to_cpu(get_unaligned((__le16*)start));
615                         start = (__u8 *)((__le16 *)start + 1);
616                         return start;
617
618                 case 3:
619                         item->size++;
620                         if ((end - start) < 4)
621                                 return NULL;
622                         item->data.u32 = le32_to_cpu(get_unaligned((__le32*)start));
623                         start = (__u8 *)((__le32 *)start + 1);
624                         return start;
625         }
626
627         return NULL;
628 }
629
630 /*
631  * Parse a report description into a hid_device structure. Reports are
632  * enumerated, fields are attached to these reports.
633  */
634
635 static struct hid_device *hid_parse_report(__u8 *start, unsigned size)
636 {
637         struct hid_device *device;
638         struct hid_parser *parser;
639         struct hid_item item;
640         __u8 *end;
641         unsigned i;
642         static int (*dispatch_type[])(struct hid_parser *parser,
643                                       struct hid_item *item) = {
644                 hid_parser_main,
645                 hid_parser_global,
646                 hid_parser_local,
647                 hid_parser_reserved
648         };
649
650         if (!(device = kzalloc(sizeof(struct hid_device), GFP_KERNEL)))
651                 return NULL;
652
653         if (!(device->collection = kzalloc(sizeof(struct hid_collection) *
654                                    HID_DEFAULT_NUM_COLLECTIONS, GFP_KERNEL))) {
655                 kfree(device);
656                 return NULL;
657         }
658         device->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
659
660         for (i = 0; i < HID_REPORT_TYPES; i++)
661                 INIT_LIST_HEAD(&device->report_enum[i].report_list);
662
663         if (!(device->rdesc = (__u8 *)kmalloc(size, GFP_KERNEL))) {
664                 kfree(device->collection);
665                 kfree(device);
666                 return NULL;
667         }
668         memcpy(device->rdesc, start, size);
669         device->rsize = size;
670
671         if (!(parser = kzalloc(sizeof(struct hid_parser), GFP_KERNEL))) {
672                 kfree(device->rdesc);
673                 kfree(device->collection);
674                 kfree(device);
675                 return NULL;
676         }
677         parser->device = device;
678
679         end = start + size;
680         while ((start = fetch_item(start, end, &item)) != NULL) {
681
682                 if (item.format != HID_ITEM_FORMAT_SHORT) {
683                         dbg("unexpected long global item");
684                         kfree(device->collection);
685                         hid_free_device(device);
686                         kfree(parser);
687                         return NULL;
688                 }
689
690                 if (dispatch_type[item.type](parser, &item)) {
691                         dbg("item %u %u %u %u parsing failed\n",
692                                 item.format, (unsigned)item.size, (unsigned)item.type, (unsigned)item.tag);
693                         kfree(device->collection);
694                         hid_free_device(device);
695                         kfree(parser);
696                         return NULL;
697                 }
698
699                 if (start == end) {
700                         if (parser->collection_stack_ptr) {
701                                 dbg("unbalanced collection at end of report description");
702                                 kfree(device->collection);
703                                 hid_free_device(device);
704                                 kfree(parser);
705                                 return NULL;
706                         }
707                         if (parser->local.delimiter_depth) {
708                                 dbg("unbalanced delimiter at end of report description");
709                                 kfree(device->collection);
710                                 hid_free_device(device);
711                                 kfree(parser);
712                                 return NULL;
713                         }
714                         kfree(parser);
715                         return device;
716                 }
717         }
718
719         dbg("item fetching failed at offset %d\n", (int)(end - start));
720         kfree(device->collection);
721         hid_free_device(device);
722         kfree(parser);
723         return NULL;
724 }
725
726 /*
727  * Convert a signed n-bit integer to signed 32-bit integer. Common
728  * cases are done through the compiler, the screwed things has to be
729  * done by hand.
730  */
731
732 static __inline__ __s32 snto32(__u32 value, unsigned n)
733 {
734         switch (n) {
735                 case 8:  return ((__s8)value);
736                 case 16: return ((__s16)value);
737                 case 32: return ((__s32)value);
738         }
739         return value & (1 << (n - 1)) ? value | (-1 << n) : value;
740 }
741
742 /*
743  * Convert a signed 32-bit integer to a signed n-bit integer.
744  */
745
746 static __inline__ __u32 s32ton(__s32 value, unsigned n)
747 {
748         __s32 a = value >> (n - 1);
749         if (a && a != -1)
750                 return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
751         return value & ((1 << n) - 1);
752 }
753
754 /*
755  * Extract/implement a data field from/to a report.
756  */
757
758 static __inline__ __u32 extract(__u8 *report, unsigned offset, unsigned n)
759 {
760         report += (offset >> 5) << 2; offset &= 31;
761         return (le64_to_cpu(get_unaligned((__le64*)report)) >> offset) & ((1ULL << n) - 1);
762 }
763
764 static __inline__ void implement(__u8 *report, unsigned offset, unsigned n, __u32 value)
765 {
766         report += (offset >> 5) << 2; offset &= 31;
767         put_unaligned((get_unaligned((__le64*)report)
768                 & cpu_to_le64(~((((__u64) 1 << n) - 1) << offset)))
769                 | cpu_to_le64((__u64)value << offset), (__le64*)report);
770 }
771
772 /*
773  * Search an array for a value.
774  */
775
776 static __inline__ int search(__s32 *array, __s32 value, unsigned n)
777 {
778         while (n--) {
779                 if (*array++ == value)
780                         return 0;
781         }
782         return -1;
783 }
784
785 static void hid_process_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value, int interrupt, struct pt_regs *regs)
786 {
787         hid_dump_input(usage, value);
788         if (hid->claimed & HID_CLAIMED_INPUT)
789                 hidinput_hid_event(hid, field, usage, value, regs);
790         if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt)
791                 hiddev_hid_event(hid, field, usage, value, regs);
792 }
793
794 /*
795  * Analyse a received field, and fetch the data from it. The field
796  * content is stored for next report processing (we do differential
797  * reporting to the layer).
798  */
799
800 static void hid_input_field(struct hid_device *hid, struct hid_field *field, __u8 *data, int interrupt, struct pt_regs *regs)
801 {
802         unsigned n;
803         unsigned count = field->report_count;
804         unsigned offset = field->report_offset;
805         unsigned size = field->report_size;
806         __s32 min = field->logical_minimum;
807         __s32 max = field->logical_maximum;
808         __s32 *value;
809
810         if (!(value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC)))
811                 return;
812
813         for (n = 0; n < count; n++) {
814
815                         value[n] = min < 0 ? snto32(extract(data, offset + n * size, size), size) :
816                                                     extract(data, offset + n * size, size);
817
818                         if (!(field->flags & HID_MAIN_ITEM_VARIABLE) /* Ignore report if ErrorRollOver */
819                             && value[n] >= min && value[n] <= max
820                             && field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
821                                 goto exit;
822         }
823
824         for (n = 0; n < count; n++) {
825
826                 if (HID_MAIN_ITEM_VARIABLE & field->flags) {
827                         hid_process_event(hid, field, &field->usage[n], value[n], interrupt, regs);
828                         continue;
829                 }
830
831                 if (field->value[n] >= min && field->value[n] <= max
832                         && field->usage[field->value[n] - min].hid
833                         && search(value, field->value[n], count))
834                                 hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt, regs);
835
836                 if (value[n] >= min && value[n] <= max
837                         && field->usage[value[n] - min].hid
838                         && search(field->value, value[n], count))
839                                 hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt, regs);
840         }
841
842         memcpy(field->value, value, count * sizeof(__s32));
843 exit:
844         kfree(value);
845 }
846
847 static int hid_input_report(int type, struct urb *urb, int interrupt, struct pt_regs *regs)
848 {
849         struct hid_device *hid = urb->context;
850         struct hid_report_enum *report_enum = hid->report_enum + type;
851         u8 *data = urb->transfer_buffer;
852         int len = urb->actual_length;
853         struct hid_report *report;
854         int n, size;
855
856         if (!len) {
857                 dbg("empty report");
858                 return -1;
859         }
860
861 #ifdef DEBUG_DATA
862         printk(KERN_DEBUG __FILE__ ": report (size %u) (%snumbered)\n", len, report_enum->numbered ? "" : "un");
863 #endif
864
865         n = 0;                          /* Normally report number is 0 */
866         if (report_enum->numbered) {    /* Device uses numbered reports, data[0] is report number */
867                 n = *data++;
868                 len--;
869         }
870
871 #ifdef DEBUG_DATA
872         {
873                 int i;
874                 printk(KERN_DEBUG __FILE__ ": report %d (size %u) = ", n, len);
875                 for (i = 0; i < len; i++)
876                         printk(" %02x", data[i]);
877                 printk("\n");
878         }
879 #endif
880
881         if (!(report = report_enum->report_id_hash[n])) {
882                 dbg("undefined report_id %d received", n);
883                 return -1;
884         }
885
886         size = ((report->size - 1) >> 3) + 1;
887
888         if (len < size) {
889                 dbg("report %d is too short, (%d < %d)", report->id, len, size);
890                 memset(data + len, 0, size - len);
891         }
892
893         if (hid->claimed & HID_CLAIMED_HIDDEV)
894                 hiddev_report_event(hid, report);
895
896         for (n = 0; n < report->maxfield; n++)
897                 hid_input_field(hid, report->field[n], data, interrupt, regs);
898
899         if (hid->claimed & HID_CLAIMED_INPUT)
900                 hidinput_report_event(hid, report);
901
902         return 0;
903 }
904
905 /*
906  * Input submission and I/O error handler.
907  */
908
909 static void hid_io_error(struct hid_device *hid);
910
911 /* Start up the input URB */
912 static int hid_start_in(struct hid_device *hid)
913 {
914         unsigned long flags;
915         int rc = 0;
916
917         spin_lock_irqsave(&hid->inlock, flags);
918         if (hid->open > 0 && !test_bit(HID_SUSPENDED, &hid->iofl) &&
919                         !test_and_set_bit(HID_IN_RUNNING, &hid->iofl)) {
920                 rc = usb_submit_urb(hid->urbin, GFP_ATOMIC);
921                 if (rc != 0)
922                         clear_bit(HID_IN_RUNNING, &hid->iofl);
923         }
924         spin_unlock_irqrestore(&hid->inlock, flags);
925         return rc;
926 }
927
928 /* I/O retry timer routine */
929 static void hid_retry_timeout(unsigned long _hid)
930 {
931         struct hid_device *hid = (struct hid_device *) _hid;
932
933         dev_dbg(&hid->intf->dev, "retrying intr urb\n");
934         if (hid_start_in(hid))
935                 hid_io_error(hid);
936 }
937
938 /* Workqueue routine to reset the device */
939 static void hid_reset(void *_hid)
940 {
941         struct hid_device *hid = (struct hid_device *) _hid;
942         int rc_lock, rc;
943
944         dev_dbg(&hid->intf->dev, "resetting device\n");
945         rc = rc_lock = usb_lock_device_for_reset(hid->dev, hid->intf);
946         if (rc_lock >= 0) {
947                 rc = usb_reset_composite_device(hid->dev, hid->intf);
948                 if (rc_lock)
949                         usb_unlock_device(hid->dev);
950         }
951         clear_bit(HID_RESET_PENDING, &hid->iofl);
952
953         switch (rc) {
954         case 0:
955                 if (!test_bit(HID_IN_RUNNING, &hid->iofl))
956                         hid_io_error(hid);
957                 break;
958         default:
959                 err("can't reset device, %s-%s/input%d, status %d",
960                                 hid->dev->bus->bus_name,
961                                 hid->dev->devpath,
962                                 hid->ifnum, rc);
963                 /* FALLTHROUGH */
964         case -EHOSTUNREACH:
965         case -ENODEV:
966         case -EINTR:
967                 break;
968         }
969 }
970
971 /* Main I/O error handler */
972 static void hid_io_error(struct hid_device *hid)
973 {
974         unsigned long flags;
975
976         spin_lock_irqsave(&hid->inlock, flags);
977
978         /* Stop when disconnected */
979         if (usb_get_intfdata(hid->intf) == NULL)
980                 goto done;
981
982         /* When an error occurs, retry at increasing intervals */
983         if (hid->retry_delay == 0) {
984                 hid->retry_delay = 13;  /* Then 26, 52, 104, 104, ... */
985                 hid->stop_retry = jiffies + msecs_to_jiffies(1000);
986         } else if (hid->retry_delay < 100)
987                 hid->retry_delay *= 2;
988
989         if (time_after(jiffies, hid->stop_retry)) {
990
991                 /* Retries failed, so do a port reset */
992                 if (!test_and_set_bit(HID_RESET_PENDING, &hid->iofl)) {
993                         if (schedule_work(&hid->reset_work))
994                                 goto done;
995                         clear_bit(HID_RESET_PENDING, &hid->iofl);
996                 }
997         }
998
999         mod_timer(&hid->io_retry,
1000                         jiffies + msecs_to_jiffies(hid->retry_delay));
1001 done:
1002         spin_unlock_irqrestore(&hid->inlock, flags);
1003 }
1004
1005 /*
1006  * Input interrupt completion handler.
1007  */
1008
1009 static void hid_irq_in(struct urb *urb, struct pt_regs *regs)
1010 {
1011         struct hid_device       *hid = urb->context;
1012         int                     status;
1013
1014         switch (urb->status) {
1015                 case 0:                 /* success */
1016                         hid->retry_delay = 0;
1017                         hid_input_report(HID_INPUT_REPORT, urb, 1, regs);
1018                         break;
1019                 case -ECONNRESET:       /* unlink */
1020                 case -ENOENT:
1021                 case -ESHUTDOWN:        /* unplug */
1022                         clear_bit(HID_IN_RUNNING, &hid->iofl);
1023                         return;
1024                 case -EILSEQ:           /* protocol error or unplug */
1025                 case -EPROTO:           /* protocol error or unplug */
1026                 case -ETIMEDOUT:        /* NAK */
1027                         clear_bit(HID_IN_RUNNING, &hid->iofl);
1028                         hid_io_error(hid);
1029                         return;
1030                 default:                /* error */
1031                         warn("input irq status %d received", urb->status);
1032         }
1033
1034         status = usb_submit_urb(urb, SLAB_ATOMIC);
1035         if (status) {
1036                 clear_bit(HID_IN_RUNNING, &hid->iofl);
1037                 if (status != -EPERM) {
1038                         err("can't resubmit intr, %s-%s/input%d, status %d",
1039                                         hid->dev->bus->bus_name,
1040                                         hid->dev->devpath,
1041                                         hid->ifnum, status);
1042                         hid_io_error(hid);
1043                 }
1044         }
1045 }
1046
1047 /*
1048  * Output the field into the report.
1049  */
1050
1051 static void hid_output_field(struct hid_field *field, __u8 *data)
1052 {
1053         unsigned count = field->report_count;
1054         unsigned offset = field->report_offset;
1055         unsigned size = field->report_size;
1056         unsigned n;
1057
1058         for (n = 0; n < count; n++) {
1059                 if (field->logical_minimum < 0) /* signed values */
1060                         implement(data, offset + n * size, size, s32ton(field->value[n], size));
1061                 else                            /* unsigned values */
1062                         implement(data, offset + n * size, size, field->value[n]);
1063         }
1064 }
1065
1066 /*
1067  * Create a report.
1068  */
1069
1070 static void hid_output_report(struct hid_report *report, __u8 *data)
1071 {
1072         unsigned n;
1073
1074         if (report->id > 0)
1075                 *data++ = report->id;
1076
1077         for (n = 0; n < report->maxfield; n++)
1078                 hid_output_field(report->field[n], data);
1079 }
1080
1081 /*
1082  * Set a field value. The report this field belongs to has to be
1083  * created and transferred to the device, to set this value in the
1084  * device.
1085  */
1086
1087 int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
1088 {
1089         unsigned size = field->report_size;
1090
1091         hid_dump_input(field->usage + offset, value);
1092
1093         if (offset >= field->report_count) {
1094                 dbg("offset (%d) exceeds report_count (%d)", offset, field->report_count);
1095                 hid_dump_field(field, 8);
1096                 return -1;
1097         }
1098         if (field->logical_minimum < 0) {
1099                 if (value != snto32(s32ton(value, size), size)) {
1100                         dbg("value %d is out of range", value);
1101                         return -1;
1102                 }
1103         }
1104         field->value[offset] = value;
1105         return 0;
1106 }
1107
1108 /*
1109  * Find a report field with a specified HID usage.
1110  */
1111
1112 struct hid_field *hid_find_field_by_usage(struct hid_device *hid, __u32 wanted_usage, int type)
1113 {
1114         struct hid_report *report;
1115         int i;
1116
1117         list_for_each_entry(report, &hid->report_enum[type].report_list, list)
1118                 for (i = 0; i < report->maxfield; i++)
1119                         if (report->field[i]->logical == wanted_usage)
1120                                 return report->field[i];
1121         return NULL;
1122 }
1123
1124 static int hid_submit_out(struct hid_device *hid)
1125 {
1126         struct hid_report *report;
1127
1128         report = hid->out[hid->outtail];
1129
1130         hid_output_report(report, hid->outbuf);
1131         hid->urbout->transfer_buffer_length = ((report->size - 1) >> 3) + 1 + (report->id > 0);
1132         hid->urbout->dev = hid->dev;
1133
1134         dbg("submitting out urb");
1135
1136         if (usb_submit_urb(hid->urbout, GFP_ATOMIC)) {
1137                 err("usb_submit_urb(out) failed");
1138                 return -1;
1139         }
1140
1141         return 0;
1142 }
1143
1144 static int hid_submit_ctrl(struct hid_device *hid)
1145 {
1146         struct hid_report *report;
1147         unsigned char dir;
1148         int len;
1149
1150         report = hid->ctrl[hid->ctrltail].report;
1151         dir = hid->ctrl[hid->ctrltail].dir;
1152
1153         len = ((report->size - 1) >> 3) + 1 + (report->id > 0);
1154         if (dir == USB_DIR_OUT) {
1155                 hid_output_report(report, hid->ctrlbuf);
1156                 hid->urbctrl->pipe = usb_sndctrlpipe(hid->dev, 0);
1157                 hid->urbctrl->transfer_buffer_length = len;
1158         } else {
1159                 int maxpacket, padlen;
1160
1161                 hid->urbctrl->pipe = usb_rcvctrlpipe(hid->dev, 0);
1162                 maxpacket = usb_maxpacket(hid->dev, hid->urbctrl->pipe, 0);
1163                 if (maxpacket > 0) {
1164                         padlen = (len + maxpacket - 1) / maxpacket;
1165                         padlen *= maxpacket;
1166                         if (padlen > hid->bufsize)
1167                                 padlen = hid->bufsize;
1168                 } else
1169                         padlen = 0;
1170                 hid->urbctrl->transfer_buffer_length = padlen;
1171         }
1172         hid->urbctrl->dev = hid->dev;
1173
1174         hid->cr->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE | dir;
1175         hid->cr->bRequest = (dir == USB_DIR_OUT) ? HID_REQ_SET_REPORT : HID_REQ_GET_REPORT;
1176         hid->cr->wValue = cpu_to_le16(((report->type + 1) << 8) | report->id);
1177         hid->cr->wIndex = cpu_to_le16(hid->ifnum);
1178         hid->cr->wLength = cpu_to_le16(len);
1179
1180         dbg("submitting ctrl urb: %s wValue=0x%04x wIndex=0x%04x wLength=%u",
1181                 hid->cr->bRequest == HID_REQ_SET_REPORT ? "Set_Report" : "Get_Report",
1182                 hid->cr->wValue, hid->cr->wIndex, hid->cr->wLength);
1183
1184         if (usb_submit_urb(hid->urbctrl, GFP_ATOMIC)) {
1185                 err("usb_submit_urb(ctrl) failed");
1186                 return -1;
1187         }
1188
1189         return 0;
1190 }
1191
1192 /*
1193  * Output interrupt completion handler.
1194  */
1195
1196 static void hid_irq_out(struct urb *urb, struct pt_regs *regs)
1197 {
1198         struct hid_device *hid = urb->context;
1199         unsigned long flags;
1200         int unplug = 0;
1201
1202         switch (urb->status) {
1203                 case 0:                 /* success */
1204                         break;
1205                 case -ESHUTDOWN:        /* unplug */
1206                         unplug = 1;
1207                 case -EILSEQ:           /* protocol error or unplug */
1208                 case -EPROTO:           /* protocol error or unplug */
1209                 case -ECONNRESET:       /* unlink */
1210                 case -ENOENT:
1211                         break;
1212                 default:                /* error */
1213                         warn("output irq status %d received", urb->status);
1214         }
1215
1216         spin_lock_irqsave(&hid->outlock, flags);
1217
1218         if (unplug)
1219                 hid->outtail = hid->outhead;
1220         else
1221                 hid->outtail = (hid->outtail + 1) & (HID_OUTPUT_FIFO_SIZE - 1);
1222
1223         if (hid->outhead != hid->outtail) {
1224                 if (hid_submit_out(hid)) {
1225                         clear_bit(HID_OUT_RUNNING, &hid->iofl);
1226                         wake_up(&hid->wait);
1227                 }
1228                 spin_unlock_irqrestore(&hid->outlock, flags);
1229                 return;
1230         }
1231
1232         clear_bit(HID_OUT_RUNNING, &hid->iofl);
1233         spin_unlock_irqrestore(&hid->outlock, flags);
1234         wake_up(&hid->wait);
1235 }
1236
1237 /*
1238  * Control pipe completion handler.
1239  */
1240
1241 static void hid_ctrl(struct urb *urb, struct pt_regs *regs)
1242 {
1243         struct hid_device *hid = urb->context;
1244         unsigned long flags;
1245         int unplug = 0;
1246
1247         spin_lock_irqsave(&hid->ctrllock, flags);
1248
1249         switch (urb->status) {
1250                 case 0:                 /* success */
1251                         if (hid->ctrl[hid->ctrltail].dir == USB_DIR_IN)
1252                                 hid_input_report(hid->ctrl[hid->ctrltail].report->type, urb, 0, regs);
1253                         break;
1254                 case -ESHUTDOWN:        /* unplug */
1255                         unplug = 1;
1256                 case -EILSEQ:           /* protocol error or unplug */
1257                 case -EPROTO:           /* protocol error or unplug */
1258                 case -ECONNRESET:       /* unlink */
1259                 case -ENOENT:
1260                 case -EPIPE:            /* report not available */
1261                         break;
1262                 default:                /* error */
1263                         warn("ctrl urb status %d received", urb->status);
1264         }
1265
1266         if (unplug)
1267                 hid->ctrltail = hid->ctrlhead;
1268         else
1269                 hid->ctrltail = (hid->ctrltail + 1) & (HID_CONTROL_FIFO_SIZE - 1);
1270
1271         if (hid->ctrlhead != hid->ctrltail) {
1272                 if (hid_submit_ctrl(hid)) {
1273                         clear_bit(HID_CTRL_RUNNING, &hid->iofl);
1274                         wake_up(&hid->wait);
1275                 }
1276                 spin_unlock_irqrestore(&hid->ctrllock, flags);
1277                 return;
1278         }
1279
1280         clear_bit(HID_CTRL_RUNNING, &hid->iofl);
1281         spin_unlock_irqrestore(&hid->ctrllock, flags);
1282         wake_up(&hid->wait);
1283 }
1284
1285 void hid_submit_report(struct hid_device *hid, struct hid_report *report, unsigned char dir)
1286 {
1287         int head;
1288         unsigned long flags;
1289
1290         if ((hid->quirks & HID_QUIRK_NOGET) && dir == USB_DIR_IN)
1291                 return;
1292
1293         if (hid->urbout && dir == USB_DIR_OUT && report->type == HID_OUTPUT_REPORT) {
1294
1295                 spin_lock_irqsave(&hid->outlock, flags);
1296
1297                 if ((head = (hid->outhead + 1) & (HID_OUTPUT_FIFO_SIZE - 1)) == hid->outtail) {
1298                         spin_unlock_irqrestore(&hid->outlock, flags);
1299                         warn("output queue full");
1300                         return;
1301                 }
1302
1303                 hid->out[hid->outhead] = report;
1304                 hid->outhead = head;
1305
1306                 if (!test_and_set_bit(HID_OUT_RUNNING, &hid->iofl))
1307                         if (hid_submit_out(hid))
1308                                 clear_bit(HID_OUT_RUNNING, &hid->iofl);
1309
1310                 spin_unlock_irqrestore(&hid->outlock, flags);
1311                 return;
1312         }
1313
1314         spin_lock_irqsave(&hid->ctrllock, flags);
1315
1316         if ((head = (hid->ctrlhead + 1) & (HID_CONTROL_FIFO_SIZE - 1)) == hid->ctrltail) {
1317                 spin_unlock_irqrestore(&hid->ctrllock, flags);
1318                 warn("control queue full");
1319                 return;
1320         }
1321
1322         hid->ctrl[hid->ctrlhead].report = report;
1323         hid->ctrl[hid->ctrlhead].dir = dir;
1324         hid->ctrlhead = head;
1325
1326         if (!test_and_set_bit(HID_CTRL_RUNNING, &hid->iofl))
1327                 if (hid_submit_ctrl(hid))
1328                         clear_bit(HID_CTRL_RUNNING, &hid->iofl);
1329
1330         spin_unlock_irqrestore(&hid->ctrllock, flags);
1331 }
1332
1333 int hid_wait_io(struct hid_device *hid)
1334 {
1335         if (!wait_event_timeout(hid->wait, (!test_bit(HID_CTRL_RUNNING, &hid->iofl) &&
1336                                         !test_bit(HID_OUT_RUNNING, &hid->iofl)),
1337                                         10*HZ)) {
1338                 dbg("timeout waiting for ctrl or out queue to clear");
1339                 return -1;
1340         }
1341
1342         return 0;
1343 }
1344
1345 static int hid_set_idle(struct usb_device *dev, int ifnum, int report, int idle)
1346 {
1347         return usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1348                 HID_REQ_SET_IDLE, USB_TYPE_CLASS | USB_RECIP_INTERFACE, (idle << 8) | report,
1349                 ifnum, NULL, 0, USB_CTRL_SET_TIMEOUT);
1350 }
1351
1352 static int hid_get_class_descriptor(struct usb_device *dev, int ifnum,
1353                 unsigned char type, void *buf, int size)
1354 {
1355         int result, retries = 4;
1356
1357         memset(buf,0,size);     // Make sure we parse really received data
1358
1359         do {
1360                 result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
1361                                 USB_REQ_GET_DESCRIPTOR, USB_RECIP_INTERFACE | USB_DIR_IN,
1362                                 (type << 8), ifnum, buf, size, USB_CTRL_GET_TIMEOUT);
1363                 retries--;
1364         } while (result < size && retries);
1365         return result;
1366 }
1367
1368 int hid_open(struct hid_device *hid)
1369 {
1370         ++hid->open;
1371         if (hid_start_in(hid))
1372                 hid_io_error(hid);
1373         return 0;
1374 }
1375
1376 void hid_close(struct hid_device *hid)
1377 {
1378         if (!--hid->open)
1379                 usb_kill_urb(hid->urbin);
1380 }
1381
1382 #define USB_VENDOR_ID_PANJIT            0x134c
1383
1384 /*
1385  * Initialize all reports
1386  */
1387
1388 void hid_init_reports(struct hid_device *hid)
1389 {
1390         struct hid_report *report;
1391         int err, ret;
1392
1393         list_for_each_entry(report, &hid->report_enum[HID_INPUT_REPORT].report_list, list)
1394                 hid_submit_report(hid, report, USB_DIR_IN);
1395
1396         list_for_each_entry(report, &hid->report_enum[HID_FEATURE_REPORT].report_list, list)
1397                 hid_submit_report(hid, report, USB_DIR_IN);
1398
1399         err = 0;
1400         ret = hid_wait_io(hid);
1401         while (ret) {
1402                 err |= ret;
1403                 if (test_bit(HID_CTRL_RUNNING, &hid->iofl))
1404                         usb_kill_urb(hid->urbctrl);
1405                 if (test_bit(HID_OUT_RUNNING, &hid->iofl))
1406                         usb_kill_urb(hid->urbout);
1407                 ret = hid_wait_io(hid);
1408         }
1409
1410         if (err)
1411                 warn("timeout initializing reports");
1412 }
1413
1414 #define USB_VENDOR_ID_GTCO              0x078c
1415 #define USB_DEVICE_ID_GTCO_90           0x0090
1416 #define USB_DEVICE_ID_GTCO_100          0x0100
1417 #define USB_DEVICE_ID_GTCO_101          0x0101
1418 #define USB_DEVICE_ID_GTCO_103          0x0103
1419 #define USB_DEVICE_ID_GTCO_104          0x0104
1420 #define USB_DEVICE_ID_GTCO_105          0x0105
1421 #define USB_DEVICE_ID_GTCO_106          0x0106
1422 #define USB_DEVICE_ID_GTCO_107          0x0107
1423 #define USB_DEVICE_ID_GTCO_108          0x0108
1424 #define USB_DEVICE_ID_GTCO_200          0x0200
1425 #define USB_DEVICE_ID_GTCO_201          0x0201
1426 #define USB_DEVICE_ID_GTCO_202          0x0202
1427 #define USB_DEVICE_ID_GTCO_203          0x0203
1428 #define USB_DEVICE_ID_GTCO_204          0x0204
1429 #define USB_DEVICE_ID_GTCO_205          0x0205
1430 #define USB_DEVICE_ID_GTCO_206          0x0206
1431 #define USB_DEVICE_ID_GTCO_207          0x0207
1432 #define USB_DEVICE_ID_GTCO_300          0x0300
1433 #define USB_DEVICE_ID_GTCO_301          0x0301
1434 #define USB_DEVICE_ID_GTCO_302          0x0302
1435 #define USB_DEVICE_ID_GTCO_303          0x0303
1436 #define USB_DEVICE_ID_GTCO_304          0x0304
1437 #define USB_DEVICE_ID_GTCO_305          0x0305
1438 #define USB_DEVICE_ID_GTCO_306          0x0306
1439 #define USB_DEVICE_ID_GTCO_307          0x0307
1440 #define USB_DEVICE_ID_GTCO_308          0x0308
1441 #define USB_DEVICE_ID_GTCO_309          0x0309
1442 #define USB_DEVICE_ID_GTCO_400          0x0400
1443 #define USB_DEVICE_ID_GTCO_401          0x0401
1444 #define USB_DEVICE_ID_GTCO_402          0x0402
1445 #define USB_DEVICE_ID_GTCO_403          0x0403
1446 #define USB_DEVICE_ID_GTCO_404          0x0404
1447 #define USB_DEVICE_ID_GTCO_405          0x0405
1448 #define USB_DEVICE_ID_GTCO_500          0x0500
1449 #define USB_DEVICE_ID_GTCO_501          0x0501
1450 #define USB_DEVICE_ID_GTCO_502          0x0502
1451 #define USB_DEVICE_ID_GTCO_503          0x0503
1452 #define USB_DEVICE_ID_GTCO_504          0x0504
1453 #define USB_DEVICE_ID_GTCO_1000         0x1000
1454 #define USB_DEVICE_ID_GTCO_1001         0x1001
1455 #define USB_DEVICE_ID_GTCO_1002         0x1002
1456 #define USB_DEVICE_ID_GTCO_1003         0x1003
1457 #define USB_DEVICE_ID_GTCO_1004         0x1004
1458 #define USB_DEVICE_ID_GTCO_1005         0x1005
1459 #define USB_DEVICE_ID_GTCO_1006         0x1006
1460
1461 #define USB_VENDOR_ID_WACOM             0x056a
1462
1463 #define USB_VENDOR_ID_ACECAD            0x0460
1464 #define USB_DEVICE_ID_ACECAD_FLAIR      0x0004
1465 #define USB_DEVICE_ID_ACECAD_302        0x0008
1466
1467 #define USB_VENDOR_ID_KBGEAR            0x084e
1468 #define USB_DEVICE_ID_KBGEAR_JAMSTUDIO  0x1001
1469
1470 #define USB_VENDOR_ID_AIPTEK            0x08ca
1471 #define USB_DEVICE_ID_AIPTEK_01         0x0001
1472 #define USB_DEVICE_ID_AIPTEK_10         0x0010
1473 #define USB_DEVICE_ID_AIPTEK_20         0x0020
1474 #define USB_DEVICE_ID_AIPTEK_21         0x0021
1475 #define USB_DEVICE_ID_AIPTEK_22         0x0022
1476 #define USB_DEVICE_ID_AIPTEK_23         0x0023
1477 #define USB_DEVICE_ID_AIPTEK_24         0x0024
1478
1479 #define USB_VENDOR_ID_GRIFFIN           0x077d
1480 #define USB_DEVICE_ID_POWERMATE         0x0410
1481 #define USB_DEVICE_ID_SOUNDKNOB         0x04AA
1482
1483 #define USB_VENDOR_ID_ATEN              0x0557
1484 #define USB_DEVICE_ID_ATEN_UC100KM      0x2004
1485 #define USB_DEVICE_ID_ATEN_CS124U       0x2202
1486 #define USB_DEVICE_ID_ATEN_2PORTKVM     0x2204
1487 #define USB_DEVICE_ID_ATEN_4PORTKVM     0x2205
1488 #define USB_DEVICE_ID_ATEN_4PORTKVMC    0x2208
1489
1490 #define USB_VENDOR_ID_TOPMAX            0x0663
1491 #define USB_DEVICE_ID_TOPMAX_COBRAPAD   0x0103
1492
1493 #define USB_VENDOR_ID_HAPP              0x078b
1494 #define USB_DEVICE_ID_UGCI_DRIVING      0x0010
1495 #define USB_DEVICE_ID_UGCI_FLYING       0x0020
1496 #define USB_DEVICE_ID_UGCI_FIGHTING     0x0030
1497
1498 #define USB_VENDOR_ID_MGE               0x0463
1499 #define USB_DEVICE_ID_MGE_UPS           0xffff
1500 #define USB_DEVICE_ID_MGE_UPS1          0x0001
1501
1502 #define USB_VENDOR_ID_ONTRAK            0x0a07
1503 #define USB_DEVICE_ID_ONTRAK_ADU100     0x0064
1504
1505 #define USB_VENDOR_ID_ESSENTIAL_REALITY 0x0d7f
1506 #define USB_DEVICE_ID_ESSENTIAL_REALITY_P5 0x0100
1507
1508 #define USB_VENDOR_ID_A4TECH            0x09da
1509 #define USB_DEVICE_ID_A4TECH_WCP32PU    0x0006
1510
1511 #define USB_VENDOR_ID_AASHIMA           0x06d6
1512 #define USB_DEVICE_ID_AASHIMA_GAMEPAD   0x0025
1513 #define USB_DEVICE_ID_AASHIMA_PREDATOR  0x0026
1514
1515 #define USB_VENDOR_ID_CYPRESS           0x04b4
1516 #define USB_DEVICE_ID_CYPRESS_MOUSE     0x0001
1517 #define USB_DEVICE_ID_CYPRESS_HIDCOM    0x5500
1518 #define USB_DEVICE_ID_CYPRESS_ULTRAMOUSE        0x7417
1519
1520 #define USB_VENDOR_ID_BERKSHIRE         0x0c98
1521 #define USB_DEVICE_ID_BERKSHIRE_PCWD    0x1140
1522
1523 #define USB_VENDOR_ID_ALPS              0x0433
1524 #define USB_DEVICE_ID_IBM_GAMEPAD       0x1101
1525
1526 #define USB_VENDOR_ID_SAITEK            0x06a3
1527 #define USB_DEVICE_ID_SAITEK_RUMBLEPAD  0xff17
1528
1529 #define USB_VENDOR_ID_NEC               0x073e
1530 #define USB_DEVICE_ID_NEC_USB_GAME_PAD  0x0301
1531
1532 #define USB_VENDOR_ID_CHIC              0x05fe
1533 #define USB_DEVICE_ID_CHIC_GAMEPAD      0x0014
1534
1535 #define USB_VENDOR_ID_GLAB              0x06c2
1536 #define USB_DEVICE_ID_4_PHIDGETSERVO_30 0x0038
1537 #define USB_DEVICE_ID_1_PHIDGETSERVO_30 0x0039
1538 #define USB_DEVICE_ID_8_8_8_IF_KIT      0x0045
1539 #define USB_DEVICE_ID_0_0_4_IF_KIT      0x0040
1540 #define USB_DEVICE_ID_0_8_8_IF_KIT      0x0053
1541
1542 #define USB_VENDOR_ID_WISEGROUP         0x0925
1543 #define USB_DEVICE_ID_1_PHIDGETSERVO_20 0x8101
1544 #define USB_DEVICE_ID_4_PHIDGETSERVO_20 0x8104
1545 #define USB_DEVICE_ID_DUAL_USB_JOYPAD   0x8866
1546
1547 #define USB_VENDOR_ID_WISEGROUP_LTD     0x6677
1548 #define USB_DEVICE_ID_SMARTJOY_DUAL_PLUS 0x8802
1549
1550 #define USB_VENDOR_ID_CODEMERCS         0x07c0
1551 #define USB_DEVICE_ID_CODEMERCS_IOW40   0x1500
1552 #define USB_DEVICE_ID_CODEMERCS_IOW24   0x1501
1553 #define USB_DEVICE_ID_CODEMERCS_IOW48   0x1502
1554 #define USB_DEVICE_ID_CODEMERCS_IOW28   0x1503
1555
1556 #define USB_VENDOR_ID_DELORME           0x1163
1557 #define USB_DEVICE_ID_DELORME_EARTHMATE 0x0100
1558 #define USB_DEVICE_ID_DELORME_EM_LT20   0x0200
1559
1560 #define USB_VENDOR_ID_MCC               0x09db
1561 #define USB_DEVICE_ID_MCC_PMD1024LS     0x0076
1562 #define USB_DEVICE_ID_MCC_PMD1208LS     0x007a
1563
1564 #define USB_VENDOR_ID_VERNIER           0x08f7
1565 #define USB_DEVICE_ID_VERNIER_LABPRO    0x0001
1566 #define USB_DEVICE_ID_VERNIER_GOTEMP    0x0002
1567 #define USB_DEVICE_ID_VERNIER_SKIP      0x0003
1568 #define USB_DEVICE_ID_VERNIER_CYCLOPS   0x0004
1569
1570 #define USB_VENDOR_ID_LD                0x0f11
1571 #define USB_DEVICE_ID_LD_CASSY          0x1000
1572 #define USB_DEVICE_ID_LD_POCKETCASSY    0x1010
1573 #define USB_DEVICE_ID_LD_MOBILECASSY    0x1020
1574 #define USB_DEVICE_ID_LD_JWM            0x1080
1575 #define USB_DEVICE_ID_LD_DMMP           0x1081
1576 #define USB_DEVICE_ID_LD_UMIP           0x1090
1577 #define USB_DEVICE_ID_LD_XRAY1          0x1100
1578 #define USB_DEVICE_ID_LD_XRAY2          0x1101
1579 #define USB_DEVICE_ID_LD_VIDEOCOM       0x1200
1580 #define USB_DEVICE_ID_LD_COM3LAB        0x2000
1581 #define USB_DEVICE_ID_LD_TELEPORT       0x2010
1582 #define USB_DEVICE_ID_LD_NETWORKANALYSER 0x2020
1583 #define USB_DEVICE_ID_LD_POWERCONTROL   0x2030
1584 #define USB_DEVICE_ID_LD_MACHINETEST    0x2040
1585
1586 #define USB_VENDOR_ID_APPLE             0x05ac
1587 #define USB_DEVICE_ID_APPLE_MIGHTYMOUSE 0x0304
1588
1589 #define USB_VENDOR_ID_CHERRY            0x046a
1590 #define USB_DEVICE_ID_CHERRY_CYMOTION   0x0023
1591
1592 #define USB_VENDOR_ID_YEALINK           0x6993
1593 #define USB_DEVICE_ID_YEALINK_P1K_P4K_B2K       0xb001
1594 /*
1595  * Alphabetically sorted blacklist by quirk type.
1596  */
1597
1598 static const struct hid_blacklist {
1599         __u16 idVendor;
1600         __u16 idProduct;
1601         unsigned quirks;
1602 } hid_blacklist[] = {
1603
1604         { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01, HID_QUIRK_IGNORE },
1605         { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10, HID_QUIRK_IGNORE },
1606         { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20, HID_QUIRK_IGNORE },
1607         { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21, HID_QUIRK_IGNORE },
1608         { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22, HID_QUIRK_IGNORE },
1609         { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23, HID_QUIRK_IGNORE },
1610         { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24, HID_QUIRK_IGNORE },
1611         { USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD, HID_QUIRK_IGNORE },
1612         { USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW40, HID_QUIRK_IGNORE },
1613         { USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW24, HID_QUIRK_IGNORE },
1614         { USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW48, HID_QUIRK_IGNORE },
1615         { USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW28, HID_QUIRK_IGNORE },
1616         { USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM, HID_QUIRK_IGNORE },
1617         { USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE, HID_QUIRK_IGNORE },
1618         { USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE, HID_QUIRK_IGNORE },
1619         { USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20, HID_QUIRK_IGNORE },
1620         { USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5, HID_QUIRK_IGNORE },
1621         { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30, HID_QUIRK_IGNORE },
1622         { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30, HID_QUIRK_IGNORE },
1623         { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT, HID_QUIRK_IGNORE },
1624         { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT, HID_QUIRK_IGNORE },
1625         { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT, HID_QUIRK_IGNORE },
1626         { USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE, HID_QUIRK_IGNORE },
1627         { USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB, HID_QUIRK_IGNORE },
1628         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90, HID_QUIRK_IGNORE },
1629         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100, HID_QUIRK_IGNORE },
1630         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101, HID_QUIRK_IGNORE },
1631         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103, HID_QUIRK_IGNORE },
1632         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104, HID_QUIRK_IGNORE },
1633         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105, HID_QUIRK_IGNORE },
1634         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106, HID_QUIRK_IGNORE },
1635         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107, HID_QUIRK_IGNORE },
1636         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108, HID_QUIRK_IGNORE },
1637         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200, HID_QUIRK_IGNORE },
1638         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201, HID_QUIRK_IGNORE },
1639         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202, HID_QUIRK_IGNORE },
1640         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203, HID_QUIRK_IGNORE },
1641         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204, HID_QUIRK_IGNORE },
1642         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205, HID_QUIRK_IGNORE },
1643         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206, HID_QUIRK_IGNORE },
1644         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207, HID_QUIRK_IGNORE },
1645         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300, HID_QUIRK_IGNORE },
1646         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301, HID_QUIRK_IGNORE },
1647         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302, HID_QUIRK_IGNORE },
1648         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303, HID_QUIRK_IGNORE },
1649         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304, HID_QUIRK_IGNORE },
1650         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305, HID_QUIRK_IGNORE },
1651         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306, HID_QUIRK_IGNORE },
1652         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307, HID_QUIRK_IGNORE },
1653         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308, HID_QUIRK_IGNORE },
1654         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309, HID_QUIRK_IGNORE },
1655         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400, HID_QUIRK_IGNORE },
1656         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401, HID_QUIRK_IGNORE },
1657         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402, HID_QUIRK_IGNORE },
1658         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403, HID_QUIRK_IGNORE },
1659         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404, HID_QUIRK_IGNORE },
1660         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405, HID_QUIRK_IGNORE },
1661         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500, HID_QUIRK_IGNORE },
1662         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501, HID_QUIRK_IGNORE },
1663         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502, HID_QUIRK_IGNORE },
1664         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503, HID_QUIRK_IGNORE },
1665         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504, HID_QUIRK_IGNORE },
1666         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000, HID_QUIRK_IGNORE },
1667         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001, HID_QUIRK_IGNORE },
1668         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002, HID_QUIRK_IGNORE },
1669         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003, HID_QUIRK_IGNORE },
1670         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004, HID_QUIRK_IGNORE },
1671         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005, HID_QUIRK_IGNORE },
1672         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006, HID_QUIRK_IGNORE },
1673         { USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO, HID_QUIRK_IGNORE },
1674         { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY, HID_QUIRK_IGNORE },
1675         { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY, HID_QUIRK_IGNORE },
1676         { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY, HID_QUIRK_IGNORE },
1677         { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM, HID_QUIRK_IGNORE },
1678         { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP, HID_QUIRK_IGNORE },
1679         { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP, HID_QUIRK_IGNORE },
1680         { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY1, HID_QUIRK_IGNORE },
1681         { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2, HID_QUIRK_IGNORE },
1682         { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM, HID_QUIRK_IGNORE },
1683         { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB, HID_QUIRK_IGNORE },
1684         { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT, HID_QUIRK_IGNORE },
1685         { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER, HID_QUIRK_IGNORE },
1686         { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL, HID_QUIRK_IGNORE },
1687         { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST, HID_QUIRK_IGNORE },
1688         { USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS, HID_QUIRK_IGNORE },
1689         { USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS, HID_QUIRK_IGNORE },
1690         { USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS, HID_QUIRK_IGNORE },
1691         { USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1, HID_QUIRK_IGNORE },
1692         { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100, HID_QUIRK_IGNORE },
1693         { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100, HID_QUIRK_IGNORE },
1694         { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200, HID_QUIRK_IGNORE },
1695         { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300, HID_QUIRK_IGNORE },
1696         { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400, HID_QUIRK_IGNORE },
1697         { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500, HID_QUIRK_IGNORE },
1698         { USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO, HID_QUIRK_IGNORE },
1699         { USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP, HID_QUIRK_IGNORE },
1700         { USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP, HID_QUIRK_IGNORE },
1701         { USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS, HID_QUIRK_IGNORE },
1702         { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20, HID_QUIRK_IGNORE },
1703         { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20, HID_QUIRK_IGNORE },
1704         { USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K, HID_QUIRK_IGNORE },
1705
1706         { USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR, HID_QUIRK_IGNORE },
1707         { USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302, HID_QUIRK_IGNORE },
1708
1709         { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_UC100KM, HID_QUIRK_NOGET },
1710         { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS124U, HID_QUIRK_NOGET },
1711         { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_2PORTKVM, HID_QUIRK_NOGET },
1712         { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVM, HID_QUIRK_NOGET },
1713         { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVMC, HID_QUIRK_NOGET },
1714         { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
1715         { USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SMARTJOY_DUAL_PLUS, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
1716
1717         { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE, HID_QUIRK_MIGHTYMOUSE | HID_QUIRK_INVERT_HWHEEL },
1718         { USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU, HID_QUIRK_2WHEEL_MOUSE_HACK_7 },
1719         { USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE, HID_QUIRK_2WHEEL_MOUSE_HACK_5 },
1720
1721         { USB_VENDOR_ID_AASHIMA, USB_DEVICE_ID_AASHIMA_GAMEPAD, HID_QUIRK_BADPAD },
1722         { USB_VENDOR_ID_AASHIMA, USB_DEVICE_ID_AASHIMA_PREDATOR, HID_QUIRK_BADPAD },
1723         { USB_VENDOR_ID_ALPS, USB_DEVICE_ID_IBM_GAMEPAD, HID_QUIRK_BADPAD },
1724         { USB_VENDOR_ID_CHIC, USB_DEVICE_ID_CHIC_GAMEPAD, HID_QUIRK_BADPAD },
1725         { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_DRIVING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
1726         { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FLYING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
1727         { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FIGHTING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
1728         { USB_VENDOR_ID_NEC, USB_DEVICE_ID_NEC_USB_GAME_PAD, HID_QUIRK_BADPAD },
1729         { USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RUMBLEPAD, HID_QUIRK_BADPAD },
1730         { USB_VENDOR_ID_TOPMAX, USB_DEVICE_ID_TOPMAX_COBRAPAD, HID_QUIRK_BADPAD },
1731
1732         { USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION, HID_QUIRK_CYMOTION },
1733
1734         { USB_VENDOR_ID_APPLE, 0x020E, HID_QUIRK_POWERBOOK_HAS_FN },
1735         { USB_VENDOR_ID_APPLE, 0x020F, HID_QUIRK_POWERBOOK_HAS_FN },
1736         { USB_VENDOR_ID_APPLE, 0x0214, HID_QUIRK_POWERBOOK_HAS_FN },
1737         { USB_VENDOR_ID_APPLE, 0x0215, HID_QUIRK_POWERBOOK_HAS_FN },
1738         { USB_VENDOR_ID_APPLE, 0x0216, HID_QUIRK_POWERBOOK_HAS_FN },
1739         { USB_VENDOR_ID_APPLE, 0x0217, HID_QUIRK_POWERBOOK_HAS_FN },
1740         { USB_VENDOR_ID_APPLE, 0x0218, HID_QUIRK_POWERBOOK_HAS_FN },
1741         { USB_VENDOR_ID_APPLE, 0x0219, HID_QUIRK_POWERBOOK_HAS_FN },
1742         { USB_VENDOR_ID_APPLE, 0x030A, HID_QUIRK_POWERBOOK_HAS_FN },
1743         { USB_VENDOR_ID_APPLE, 0x030B, HID_QUIRK_POWERBOOK_HAS_FN },
1744
1745         { USB_VENDOR_ID_PANJIT, 0x0001, HID_QUIRK_IGNORE },
1746         { USB_VENDOR_ID_PANJIT, 0x0002, HID_QUIRK_IGNORE },
1747         { USB_VENDOR_ID_PANJIT, 0x0003, HID_QUIRK_IGNORE },
1748         { USB_VENDOR_ID_PANJIT, 0x0004, HID_QUIRK_IGNORE },
1749
1750         { 0, 0 }
1751 };
1752
1753 /*
1754  * Traverse the supplied list of reports and find the longest
1755  */
1756 static void hid_find_max_report(struct hid_device *hid, unsigned int type, int *max)
1757 {
1758         struct hid_report *report;
1759         int size;
1760
1761         list_for_each_entry(report, &hid->report_enum[type].report_list, list) {
1762                 size = ((report->size - 1) >> 3) + 1;
1763                 if (type == HID_INPUT_REPORT && hid->report_enum[type].numbered)
1764                         size++;
1765                 if (*max < size)
1766                         *max = size;
1767         }
1768 }
1769
1770 static int hid_alloc_buffers(struct usb_device *dev, struct hid_device *hid)
1771 {
1772         if (!(hid->inbuf = usb_buffer_alloc(dev, hid->bufsize, SLAB_ATOMIC, &hid->inbuf_dma)))
1773                 return -1;
1774         if (!(hid->outbuf = usb_buffer_alloc(dev, hid->bufsize, SLAB_ATOMIC, &hid->outbuf_dma)))
1775                 return -1;
1776         if (!(hid->cr = usb_buffer_alloc(dev, sizeof(*(hid->cr)), SLAB_ATOMIC, &hid->cr_dma)))
1777                 return -1;
1778         if (!(hid->ctrlbuf = usb_buffer_alloc(dev, hid->bufsize, SLAB_ATOMIC, &hid->ctrlbuf_dma)))
1779                 return -1;
1780
1781         return 0;
1782 }
1783
1784 static void hid_free_buffers(struct usb_device *dev, struct hid_device *hid)
1785 {
1786         if (hid->inbuf)
1787                 usb_buffer_free(dev, hid->bufsize, hid->inbuf, hid->inbuf_dma);
1788         if (hid->outbuf)
1789                 usb_buffer_free(dev, hid->bufsize, hid->outbuf, hid->outbuf_dma);
1790         if (hid->cr)
1791                 usb_buffer_free(dev, sizeof(*(hid->cr)), hid->cr, hid->cr_dma);
1792         if (hid->ctrlbuf)
1793                 usb_buffer_free(dev, hid->bufsize, hid->ctrlbuf, hid->ctrlbuf_dma);
1794 }
1795
1796 /*
1797  * Cherry Cymotion keyboard have an invalid HID report descriptor,
1798  * that needs fixing before we can parse it.
1799  */
1800
1801 static void hid_fixup_cymotion_descriptor(char *rdesc, int rsize)
1802 {
1803         if (rsize >= 17 && rdesc[11] == 0x3c && rdesc[12] == 0x02) {
1804                 info("Fixing up Cherry Cymotion report descriptor");
1805                 rdesc[11] = rdesc[16] = 0xff;
1806                 rdesc[12] = rdesc[17] = 0x03;
1807         }
1808 }
1809
1810 static struct hid_device *usb_hid_configure(struct usb_interface *intf)
1811 {
1812         struct usb_host_interface *interface = intf->cur_altsetting;
1813         struct usb_device *dev = interface_to_usbdev (intf);
1814         struct hid_descriptor *hdesc;
1815         struct hid_device *hid;
1816         unsigned quirks = 0, rsize = 0;
1817         char *rdesc;
1818         int n, len, insize = 0;
1819
1820         /* Ignore all Wacom devices */
1821         if (dev->descriptor.idVendor == USB_VENDOR_ID_WACOM)
1822                 return NULL;
1823
1824         for (n = 0; hid_blacklist[n].idVendor; n++)
1825                 if ((hid_blacklist[n].idVendor == le16_to_cpu(dev->descriptor.idVendor)) &&
1826                         (hid_blacklist[n].idProduct == le16_to_cpu(dev->descriptor.idProduct)))
1827                                 quirks = hid_blacklist[n].quirks;
1828
1829         /* Many keyboards and mice don't like to be polled for reports,
1830          * so we will always set the HID_QUIRK_NOGET flag for them. */
1831         if (interface->desc.bInterfaceSubClass == USB_INTERFACE_SUBCLASS_BOOT) {
1832                 if (interface->desc.bInterfaceProtocol == USB_INTERFACE_PROTOCOL_KEYBOARD ||
1833                         interface->desc.bInterfaceProtocol == USB_INTERFACE_PROTOCOL_MOUSE)
1834                                 quirks |= HID_QUIRK_NOGET;
1835         }
1836
1837         if (quirks & HID_QUIRK_IGNORE)
1838                 return NULL;
1839
1840         if (usb_get_extra_descriptor(interface, HID_DT_HID, &hdesc) &&
1841             (!interface->desc.bNumEndpoints ||
1842              usb_get_extra_descriptor(&interface->endpoint[0], HID_DT_HID, &hdesc))) {
1843                 dbg("class descriptor not present\n");
1844                 return NULL;
1845         }
1846
1847         for (n = 0; n < hdesc->bNumDescriptors; n++)
1848                 if (hdesc->desc[n].bDescriptorType == HID_DT_REPORT)
1849                         rsize = le16_to_cpu(hdesc->desc[n].wDescriptorLength);
1850
1851         if (!rsize || rsize > HID_MAX_DESCRIPTOR_SIZE) {
1852                 dbg("weird size of report descriptor (%u)", rsize);
1853                 return NULL;
1854         }
1855
1856         if (!(rdesc = kmalloc(rsize, GFP_KERNEL))) {
1857                 dbg("couldn't allocate rdesc memory");
1858                 return NULL;
1859         }
1860
1861         hid_set_idle(dev, interface->desc.bInterfaceNumber, 0, 0);
1862
1863         if ((n = hid_get_class_descriptor(dev, interface->desc.bInterfaceNumber, HID_DT_REPORT, rdesc, rsize)) < 0) {
1864                 dbg("reading report descriptor failed");
1865                 kfree(rdesc);
1866                 return NULL;
1867         }
1868
1869         if ((quirks & HID_QUIRK_CYMOTION))
1870                 hid_fixup_cymotion_descriptor(rdesc, rsize);
1871
1872 #ifdef DEBUG_DATA
1873         printk(KERN_DEBUG __FILE__ ": report descriptor (size %u, read %d) = ", rsize, n);
1874         for (n = 0; n < rsize; n++)
1875                 printk(" %02x", (unsigned char) rdesc[n]);
1876         printk("\n");
1877 #endif
1878
1879         if (!(hid = hid_parse_report(rdesc, n))) {
1880                 dbg("parsing report descriptor failed");
1881                 kfree(rdesc);
1882                 return NULL;
1883         }
1884
1885         kfree(rdesc);
1886         hid->quirks = quirks;
1887
1888         hid->bufsize = HID_MIN_BUFFER_SIZE;
1889         hid_find_max_report(hid, HID_INPUT_REPORT, &hid->bufsize);
1890         hid_find_max_report(hid, HID_OUTPUT_REPORT, &hid->bufsize);
1891         hid_find_max_report(hid, HID_FEATURE_REPORT, &hid->bufsize);
1892
1893         if (hid->bufsize > HID_MAX_BUFFER_SIZE)
1894                 hid->bufsize = HID_MAX_BUFFER_SIZE;
1895
1896         hid_find_max_report(hid, HID_INPUT_REPORT, &insize);
1897
1898         if (insize > HID_MAX_BUFFER_SIZE)
1899                 insize = HID_MAX_BUFFER_SIZE;
1900
1901         if (hid_alloc_buffers(dev, hid)) {
1902                 hid_free_buffers(dev, hid);
1903                 goto fail;
1904         }
1905
1906         for (n = 0; n < interface->desc.bNumEndpoints; n++) {
1907
1908                 struct usb_endpoint_descriptor *endpoint;
1909                 int pipe;
1910                 int interval;
1911
1912                 endpoint = &interface->endpoint[n].desc;
1913                 if ((endpoint->bmAttributes & 3) != 3)          /* Not an interrupt endpoint */
1914                         continue;
1915
1916                 interval = endpoint->bInterval;
1917
1918                 /* Change the polling interval of mice. */
1919                 if (hid->collection->usage == HID_GD_MOUSE && hid_mousepoll_interval > 0)
1920                         interval = hid_mousepoll_interval;
1921
1922                 if (endpoint->bEndpointAddress & USB_DIR_IN) {
1923                         if (hid->urbin)
1924                                 continue;
1925                         if (!(hid->urbin = usb_alloc_urb(0, GFP_KERNEL)))
1926                                 goto fail;
1927                         pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
1928                         usb_fill_int_urb(hid->urbin, dev, pipe, hid->inbuf, insize,
1929                                          hid_irq_in, hid, interval);
1930                         hid->urbin->transfer_dma = hid->inbuf_dma;
1931                         hid->urbin->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1932                 } else {
1933                         if (hid->urbout)
1934                                 continue;
1935                         if (!(hid->urbout = usb_alloc_urb(0, GFP_KERNEL)))
1936                                 goto fail;
1937                         pipe = usb_sndintpipe(dev, endpoint->bEndpointAddress);
1938                         usb_fill_int_urb(hid->urbout, dev, pipe, hid->outbuf, 0,
1939                                          hid_irq_out, hid, interval);
1940                         hid->urbout->transfer_dma = hid->outbuf_dma;
1941                         hid->urbout->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1942                 }
1943         }
1944
1945         if (!hid->urbin) {
1946                 err("couldn't find an input interrupt endpoint");
1947                 goto fail;
1948         }
1949
1950         init_waitqueue_head(&hid->wait);
1951
1952         INIT_WORK(&hid->reset_work, hid_reset, hid);
1953         setup_timer(&hid->io_retry, hid_retry_timeout, (unsigned long) hid);
1954
1955         spin_lock_init(&hid->inlock);
1956         spin_lock_init(&hid->outlock);
1957         spin_lock_init(&hid->ctrllock);
1958
1959         hid->version = le16_to_cpu(hdesc->bcdHID);
1960         hid->country = hdesc->bCountryCode;
1961         hid->dev = dev;
1962         hid->intf = intf;
1963         hid->ifnum = interface->desc.bInterfaceNumber;
1964
1965         hid->name[0] = 0;
1966
1967         if (dev->manufacturer)
1968                 strlcpy(hid->name, dev->manufacturer, sizeof(hid->name));
1969
1970         if (dev->product) {
1971                 if (dev->manufacturer)
1972                         strlcat(hid->name, " ", sizeof(hid->name));
1973                 strlcat(hid->name, dev->product, sizeof(hid->name));
1974         }
1975
1976         if (!strlen(hid->name))
1977                 snprintf(hid->name, sizeof(hid->name), "HID %04x:%04x",
1978                          le16_to_cpu(dev->descriptor.idVendor),
1979                          le16_to_cpu(dev->descriptor.idProduct));
1980
1981         usb_make_path(dev, hid->phys, sizeof(hid->phys));
1982         strlcat(hid->phys, "/input", sizeof(hid->phys));
1983         len = strlen(hid->phys);
1984         if (len < sizeof(hid->phys) - 1)
1985                 snprintf(hid->phys + len, sizeof(hid->phys) - len,
1986                          "%d", intf->altsetting[0].desc.bInterfaceNumber);
1987
1988         if (usb_string(dev, dev->descriptor.iSerialNumber, hid->uniq, 64) <= 0)
1989                 hid->uniq[0] = 0;
1990
1991         hid->urbctrl = usb_alloc_urb(0, GFP_KERNEL);
1992         if (!hid->urbctrl)
1993                 goto fail;
1994
1995         usb_fill_control_urb(hid->urbctrl, dev, 0, (void *) hid->cr,
1996                              hid->ctrlbuf, 1, hid_ctrl, hid);
1997         hid->urbctrl->setup_dma = hid->cr_dma;
1998         hid->urbctrl->transfer_dma = hid->ctrlbuf_dma;
1999         hid->urbctrl->transfer_flags |= (URB_NO_TRANSFER_DMA_MAP | URB_NO_SETUP_DMA_MAP);
2000
2001         return hid;
2002
2003 fail:
2004
2005         if (hid->urbin)
2006                 usb_free_urb(hid->urbin);
2007         if (hid->urbout)
2008                 usb_free_urb(hid->urbout);
2009         if (hid->urbctrl)
2010                 usb_free_urb(hid->urbctrl);
2011         hid_free_buffers(dev, hid);
2012         hid_free_device(hid);
2013
2014         return NULL;
2015 }
2016
2017 static void hid_disconnect(struct usb_interface *intf)
2018 {
2019         struct hid_device *hid = usb_get_intfdata (intf);
2020
2021         if (!hid)
2022                 return;
2023
2024         spin_lock_irq(&hid->inlock);    /* Sync with error handler */
2025         usb_set_intfdata(intf, NULL);
2026         spin_unlock_irq(&hid->inlock);
2027         usb_kill_urb(hid->urbin);
2028         usb_kill_urb(hid->urbout);
2029         usb_kill_urb(hid->urbctrl);
2030
2031         del_timer_sync(&hid->io_retry);
2032         flush_scheduled_work();
2033
2034         if (hid->claimed & HID_CLAIMED_INPUT)
2035                 hidinput_disconnect(hid);
2036         if (hid->claimed & HID_CLAIMED_HIDDEV)
2037                 hiddev_disconnect(hid);
2038
2039         usb_free_urb(hid->urbin);
2040         usb_free_urb(hid->urbctrl);
2041         if (hid->urbout)
2042                 usb_free_urb(hid->urbout);
2043
2044         hid_free_buffers(hid->dev, hid);
2045         hid_free_device(hid);
2046 }
2047
2048 static int hid_probe(struct usb_interface *intf, const struct usb_device_id *id)
2049 {
2050         struct hid_device *hid;
2051         char path[64];
2052         int i;
2053         char *c;
2054
2055         dbg("HID probe called for ifnum %d",
2056                         intf->altsetting->desc.bInterfaceNumber);
2057
2058         if (!(hid = usb_hid_configure(intf)))
2059                 return -ENODEV;
2060
2061         hid_init_reports(hid);
2062         hid_dump_device(hid);
2063
2064         if (!hidinput_connect(hid))
2065                 hid->claimed |= HID_CLAIMED_INPUT;
2066         if (!hiddev_connect(hid))
2067                 hid->claimed |= HID_CLAIMED_HIDDEV;
2068
2069         usb_set_intfdata(intf, hid);
2070
2071         if (!hid->claimed) {
2072                 printk ("HID device not claimed by input or hiddev\n");
2073                 hid_disconnect(intf);
2074                 return -ENODEV;
2075         }
2076
2077         printk(KERN_INFO);
2078
2079         if (hid->claimed & HID_CLAIMED_INPUT)
2080                 printk("input");
2081         if (hid->claimed == (HID_CLAIMED_INPUT | HID_CLAIMED_HIDDEV))
2082                 printk(",");
2083         if (hid->claimed & HID_CLAIMED_HIDDEV)
2084                 printk("hiddev%d", hid->minor);
2085
2086         c = "Device";
2087         for (i = 0; i < hid->maxcollection; i++) {
2088                 if (hid->collection[i].type == HID_COLLECTION_APPLICATION &&
2089                     (hid->collection[i].usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
2090                     (hid->collection[i].usage & 0xffff) < ARRAY_SIZE(hid_types)) {
2091                         c = hid_types[hid->collection[i].usage & 0xffff];
2092                         break;
2093                 }
2094         }
2095
2096         usb_make_path(interface_to_usbdev(intf), path, 63);
2097
2098         printk(": USB HID v%x.%02x %s [%s] on %s\n",
2099                 hid->version >> 8, hid->version & 0xff, c, hid->name, path);
2100
2101         return 0;
2102 }
2103
2104 static int hid_suspend(struct usb_interface *intf, pm_message_t message)
2105 {
2106         struct hid_device *hid = usb_get_intfdata (intf);
2107
2108         spin_lock_irq(&hid->inlock);    /* Sync with error handler */
2109         set_bit(HID_SUSPENDED, &hid->iofl);
2110         spin_unlock_irq(&hid->inlock);
2111         del_timer(&hid->io_retry);
2112         usb_kill_urb(hid->urbin);
2113         dev_dbg(&intf->dev, "suspend\n");
2114         return 0;
2115 }
2116
2117 static int hid_resume(struct usb_interface *intf)
2118 {
2119         struct hid_device *hid = usb_get_intfdata (intf);
2120         int status;
2121
2122         clear_bit(HID_SUSPENDED, &hid->iofl);
2123         hid->retry_delay = 0;
2124         status = hid_start_in(hid);
2125         dev_dbg(&intf->dev, "resume status %d\n", status);
2126         return status;
2127 }
2128
2129 /* Treat USB reset pretty much the same as suspend/resume */
2130 static void hid_pre_reset(struct usb_interface *intf)
2131 {
2132         /* FIXME: What if the interface is already suspended? */
2133         hid_suspend(intf, PMSG_ON);
2134 }
2135
2136 static void hid_post_reset(struct usb_interface *intf)
2137 {
2138         struct usb_device *dev = interface_to_usbdev (intf);
2139
2140         hid_set_idle(dev, intf->cur_altsetting->desc.bInterfaceNumber, 0, 0);
2141         /* FIXME: Any more reinitialization needed? */
2142
2143         hid_resume(intf);
2144 }
2145
2146 static struct usb_device_id hid_usb_ids [] = {
2147         { .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS,
2148                 .bInterfaceClass = USB_INTERFACE_CLASS_HID },
2149         { }                                             /* Terminating entry */
2150 };
2151
2152 MODULE_DEVICE_TABLE (usb, hid_usb_ids);
2153
2154 static struct usb_driver hid_driver = {
2155         .name =         "usbhid",
2156         .probe =        hid_probe,
2157         .disconnect =   hid_disconnect,
2158         .suspend =      hid_suspend,
2159         .resume =       hid_resume,
2160         .pre_reset =    hid_pre_reset,
2161         .post_reset =   hid_post_reset,
2162         .id_table =     hid_usb_ids,
2163 };
2164
2165 static int __init hid_init(void)
2166 {
2167         int retval;
2168         retval = hiddev_init();
2169         if (retval)
2170                 goto hiddev_init_fail;
2171         retval = usb_register(&hid_driver);
2172         if (retval)
2173                 goto usb_register_fail;
2174         info(DRIVER_VERSION ":" DRIVER_DESC);
2175
2176         return 0;
2177 usb_register_fail:
2178         hiddev_exit();
2179 hiddev_init_fail:
2180         return retval;
2181 }
2182
2183 static void __exit hid_exit(void)
2184 {
2185         usb_deregister(&hid_driver);
2186         hiddev_exit();
2187 }
2188
2189 module_init(hid_init);
2190 module_exit(hid_exit);
2191
2192 MODULE_AUTHOR(DRIVER_AUTHOR);
2193 MODULE_DESCRIPTION(DRIVER_DESC);
2194 MODULE_LICENSE(DRIVER_LICENSE);