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- Committer: Bazaar Package Importer
- Author(s): Ron Lee
- Date: 2004-12-10 16:12:07 UTC
- Revision ID: james.westby@ubuntu.com-20041210161207-cw8urijtjsqvk2e3
Tags: upstream-0.6.6
Import upstream version 0.6.6
- files added:
- linuxwacom
- linuxwacom/docs
- linuxwacom/docs/docs_files
- linuxwacom/src
- linuxwacom/src/2.4
- linuxwacom/src/2.4.22
- linuxwacom/src/2.6
- linuxwacom/src/2.6.10
- linuxwacom/src/2.6.2
- linuxwacom/src/2.6.3
- linuxwacom/src/2.6.4
- linuxwacom/src/2.6.5
- linuxwacom/src/2.6.6
- linuxwacom/src/2.6.7
- linuxwacom/src/2.6.8
- linuxwacom/src/2.6.9
- linuxwacom/src/wacomxi
added
removed
linuxwacom/src/2.6.9/hid-core.c
1
/*
2
* USB HID support for Linux
3
*
4
* Copyright (c) 1999 Andreas Gal
5
* Copyright (c) 2000-2001 Vojtech Pavlik <vojtech@suse.cz>
6
*/
7
8
/*
9
* This program is free software; you can redistribute it and/or modify it
10
* under the terms of the GNU General Public License as published by the Free
11
* Software Foundation; either version 2 of the License, or (at your option)
12
* any later version.
13
*/
14
15
#include <linux/module.h>
16
#include <linux/slab.h>
17
#include <linux/init.h>
18
#include <linux/kernel.h>
19
#include <linux/sched.h>
20
#include <linux/list.h>
21
#include <linux/mm.h>
22
#include <linux/smp_lock.h>
23
#include <linux/spinlock.h>
24
#include <asm/unaligned.h>
25
#include <asm/byteorder.h>
26
#include <linux/input.h>
27
28
#undef DEBUG
29
#undef DEBUG_DATA
30
31
#include <linux/usb.h>
32
33
#include "hid.h"
34
#include <linux/hiddev.h>
35
36
/*
37
* Version Information
38
*/
39
40
#define DRIVER_VERSION "v2.0 - 2.6.9-pc-0.1"
41
#define DRIVER_AUTHOR "Andreas Gal, Vojtech Pavlik"
42
#define DRIVER_DESC "USB HID core driver"
43
#define DRIVER_LICENSE "GPL"
44
45
static char *hid_types[] = {"Device", "Pointer", "Mouse", "Device", "Joystick",
46
"Gamepad", "Keyboard", "Keypad", "Multi-Axis Controller"};
47
48
/*
49
* Register a new report for a device.
50
*/
51
52
static struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
53
{
54
struct hid_report_enum *report_enum = device->report_enum + type;
55
struct hid_report *report;
56
57
if (report_enum->report_id_hash[id])
58
return report_enum->report_id_hash[id];
59
60
if (!(report = kmalloc(sizeof(struct hid_report), GFP_KERNEL)))
61
return NULL;
62
memset(report, 0, sizeof(struct hid_report));
63
64
if (id != 0)
65
report_enum->numbered = 1;
66
67
report->id = id;
68
report->type = type;
69
report->size = 0;
70
report->device = device;
71
report_enum->report_id_hash[id] = report;
72
73
list_add_tail(&report->list, &report_enum->report_list);
74
75
return report;
76
}
77
78
/*
79
* Register a new field for this report.
80
*/
81
82
static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values)
83
{
84
struct hid_field *field;
85
86
if (report->maxfield == HID_MAX_FIELDS) {
87
dbg("too many fields in report");
88
return NULL;
89
}
90
91
if (!(field = kmalloc(sizeof(struct hid_field) + usages * sizeof(struct hid_usage)
92
+ values * sizeof(unsigned), GFP_KERNEL))) return NULL;
93
94
memset(field, 0, sizeof(struct hid_field) + usages * sizeof(struct hid_usage)
95
+ values * sizeof(unsigned));
96
97
report->field[report->maxfield++] = field;
98
field->usage = (struct hid_usage *)(field + 1);
99
field->value = (unsigned *)(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("collection stack overflow");
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,
124
GFP_KERNEL);
125
if (collection == NULL) {
126
dbg("failed to reallocate collection array");
127
return -1;
128
}
129
memcpy(collection, parser->device->collection,
130
sizeof(struct hid_collection) *
131
parser->device->collection_size);
132
memset(collection + parser->device->collection_size, 0,
133
sizeof(struct hid_collection) *
134
parser->device->collection_size);
135
kfree(parser->device->collection);
136
parser->device->collection = collection;
137
parser->device->collection_size *= 2;
138
}
139
140
parser->collection_stack[parser->collection_stack_ptr++] =
141
parser->device->maxcollection;
142
143
collection = parser->device->collection +
144
parser->device->maxcollection++;
145
collection->type = type;
146
collection->usage = usage;
147
collection->level = parser->collection_stack_ptr - 1;
148
149
if (type == HID_COLLECTION_APPLICATION)
150
parser->device->maxapplication++;
151
152
return 0;
153
}
154
155
/*
156
* Close a collection.
157
*/
158
159
static int close_collection(struct hid_parser *parser)
160
{
161
if (!parser->collection_stack_ptr) {
162
dbg("collection stack underflow");
163
return -1;
164
}
165
parser->collection_stack_ptr--;
166
return 0;
167
}
168
169
/*
170
* Climb up the stack, search for the specified collection type
171
* and return the usage.
172
*/
173
174
static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type)
175
{
176
int n;
177
for (n = parser->collection_stack_ptr - 1; n >= 0; n--)
178
if (parser->device->collection[parser->collection_stack[n]].type == type)
179
return parser->device->collection[parser->collection_stack[n]].usage;
180
return 0; /* we know nothing about this usage type */
181
}
182
183
/*
184
* Add a usage to the temporary parser table.
185
*/
186
187
static int hid_add_usage(struct hid_parser *parser, unsigned usage)
188
{
189
if (parser->local.usage_index >= HID_MAX_USAGES) {
190
dbg("usage index exceeded");
191
return -1;
192
}
193
parser->local.usage[parser->local.usage_index] = usage;
194
parser->local.collection_index[parser->local.usage_index] =
195
parser->collection_stack_ptr ?
196
parser->collection_stack[parser->collection_stack_ptr - 1] : 0;
197
parser->local.usage_index++;
198
return 0;
199
}
200
201
/*
202
* Register a new field for this report.
203
*/
204
205
static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags)
206
{
207
struct hid_report *report;
208
struct hid_field *field;
209
int usages;
210
unsigned offset;
211
int i;
212
213
if (!(report = hid_register_report(parser->device, report_type, parser->global.report_id))) {
214
dbg("hid_register_report failed");
215
return -1;
216
}
217
218
if (parser->global.logical_maximum < parser->global.logical_minimum) {
219
dbg("logical range invalid %d %d", parser->global.logical_minimum, parser->global.logical_maximum);
220
return -1;
221
}
222
223
if (!(usages = max_t(int, parser->local.usage_index, parser->global.report_count)))
224
return 0; /* Ignore padding fields */
225
226
offset = report->size;
227
report->size += parser->global.report_size * parser->global.report_count;
228
229
if ((field = hid_register_field(report, usages, parser->global.report_count)) == NULL)
230
return 0;
231
232
field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
233
field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
234
field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
235
236
for (i = 0; i < usages; i++) {
237
int j = i;
238
/* Duplicate the last usage we parsed if we have excess values */
239
if (i >= parser->local.usage_index)
240
j = parser->local.usage_index - 1;
241
field->usage[i].hid = parser->local.usage[j];
242
field->usage[i].collection_index =
243
parser->local.collection_index[j];
244
}
245
246
field->maxusage = usages;
247
field->flags = flags;
248
field->report_offset = offset;
249
field->report_type = report_type;
250
field->report_size = parser->global.report_size;
251
field->report_count = parser->global.report_count;
252
field->logical_minimum = parser->global.logical_minimum;
253
field->logical_maximum = parser->global.logical_maximum;
254
field->physical_minimum = parser->global.physical_minimum;
255
field->physical_maximum = parser->global.physical_maximum;
256
field->unit_exponent = parser->global.unit_exponent;
257
field->unit = parser->global.unit;
258
259
return 0;
260
}
261
262
/*
263
* Read data value from item.
264
*/
265
266
static __inline__ __u32 item_udata(struct hid_item *item)
267
{
268
switch (item->size) {
269
case 1: return item->data.u8;
270
case 2: return item->data.u16;
271
case 4: return item->data.u32;
272
}
273
return 0;
274
}
275
276
static __inline__ __s32 item_sdata(struct hid_item *item)
277
{
278
switch (item->size) {
279
case 1: return item->data.s8;
280
case 2: return item->data.s16;
281
case 4: return item->data.s32;
282
}
283
return 0;
284
}
285
286
/*
287
* Process a global item.
288
*/
289
290
static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
291
{
292
switch (item->tag) {
293
294
case HID_GLOBAL_ITEM_TAG_PUSH:
295
296
if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
297
dbg("global enviroment stack overflow");
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("global enviroment stack underflow");
309
return -1;
310
}
311
312
memcpy(&parser->global, parser->global_stack + --parser->global_stack_ptr,
313
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
if ((parser->global.report_size = item_udata(item)) > 32) {
352
dbg("invalid report_size %d", parser->global.report_size);
353
return -1;
354
}
355
return 0;
356
357
case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
358
if ((parser->global.report_count = item_udata(item)) > HID_MAX_USAGES) {
359
dbg("invalid report_count %d", parser->global.report_count);
360
return -1;
361
}
362
return 0;
363
364
case HID_GLOBAL_ITEM_TAG_REPORT_ID:
365
if ((parser->global.report_id = item_udata(item)) == 0) {
366
dbg("report_id 0 is invalid");
367
return -1;
368
}
369
return 0;
370
371
default:
372
dbg("unknown global tag 0x%x", item->tag);
373
return -1;
374
}
375
}
376
377
/*
378
* Process a local item.
379
*/
380
381
static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
382
{
383
__u32 data;
384
unsigned n;
385
386
if (item->size == 0) {
387
dbg("item data expected for local item");
388
return -1;
389
}
390
391
data = item_udata(item);
392
393
switch (item->tag) {
394
395
case HID_LOCAL_ITEM_TAG_DELIMITER:
396
397
if (data) {
398
/*
399
* We treat items before the first delimiter
400
* as global to all usage sets (branch 0).
401
* In the moment we process only these global
402
* items and the first delimiter set.
403
*/
404
if (parser->local.delimiter_depth != 0) {
405
dbg("nested delimiters");
406
return -1;
407
}
408
parser->local.delimiter_depth++;
409
parser->local.delimiter_branch++;
410
} else {
411
if (parser->local.delimiter_depth < 1) {
412
dbg("bogus close delimiter");
413
return -1;
414
}
415
parser->local.delimiter_depth--;
416
}
417
return 1;
418
419
case HID_LOCAL_ITEM_TAG_USAGE:
420
421
if (parser->local.delimiter_branch > 1) {
422
dbg("alternative usage ignored");
423
return 0;
424
}
425
426
if (item->size <= 2)
427
data = (parser->global.usage_page << 16) + data;
428
429
return hid_add_usage(parser, data);
430
431
case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
432
433
if (parser->local.delimiter_branch > 1) {
434
dbg("alternative usage ignored");
435
return 0;
436
}
437
438
if (item->size <= 2)
439
data = (parser->global.usage_page << 16) + data;
440
441
parser->local.usage_minimum = data;
442
return 0;
443
444
case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
445
446
if (parser->local.delimiter_branch > 1) {
447
dbg("alternative usage ignored");
448
return 0;
449
}
450
451
if (item->size <= 2)
452
data = (parser->global.usage_page << 16) + data;
453
454
for (n = parser->local.usage_minimum; n <= data; n++)
455
if (hid_add_usage(parser, n)) {
456
dbg("hid_add_usage failed\n");
457
return -1;
458
}
459
return 0;
460
461
default:
462
463
dbg("unknown local item tag 0x%x", item->tag);
464
return 0;
465
}
466
return 0;
467
}
468
469
/*
470
* Process a main item.
471
*/
472
473
static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
474
{
475
__u32 data;
476
int ret;
477
478
data = item_udata(item);
479
480
switch (item->tag) {
481
case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
482
ret = open_collection(parser, data & 0xff);
483
break;
484
case HID_MAIN_ITEM_TAG_END_COLLECTION:
485
ret = close_collection(parser);
486
break;
487
case HID_MAIN_ITEM_TAG_INPUT:
488
ret = hid_add_field(parser, HID_INPUT_REPORT, data);
489
break;
490
case HID_MAIN_ITEM_TAG_OUTPUT:
491
ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
492
break;
493
case HID_MAIN_ITEM_TAG_FEATURE:
494
ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
495
break;
496
default:
497
dbg("unknown main item tag 0x%x", item->tag);
498
ret = 0;
499
}
500
501
memset(&parser->local, 0, sizeof(parser->local)); /* Reset the local parser environment */
502
503
return ret;
504
}
505
506
/*
507
* Process a reserved item.
508
*/
509
510
static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
511
{
512
dbg("reserved item type, tag 0x%x", item->tag);
513
return 0;
514
}
515
516
/*
517
* Free a report and all registered fields. The field->usage and
518
* field->value table's are allocated behind the field, so we need
519
* only to free(field) itself.
520
*/
521
522
static void hid_free_report(struct hid_report *report)
523
{
524
unsigned n;
525
526
for (n = 0; n < report->maxfield; n++)
527
kfree(report->field[n]);
528
kfree(report);
529
}
530
531
/*
532
* Free a device structure, all reports, and all fields.
533
*/
534
535
static void hid_free_device(struct hid_device *device)
536
{
537
unsigned i,j;
538
539
hid_ff_exit(device);
540
541
for (i = 0; i < HID_REPORT_TYPES; i++) {
542
struct hid_report_enum *report_enum = device->report_enum + i;
543
544
for (j = 0; j < 256; j++) {
545
struct hid_report *report = report_enum->report_id_hash[j];
546
if (report)
547
hid_free_report(report);
548
}
549
}
550
551
if (device->rdesc)
552
kfree(device->rdesc);
553
kfree(device);
554
}
555
556
/*
557
* Fetch a report description item from the data stream. We support long
558
* items, though they are not used yet.
559
*/
560
561
static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
562
{
563
u8 b;
564
565
if ((end - start) <= 0)
566
return NULL;
567
568
b = *start++;
569
570
item->type = (b >> 2) & 3;
571
item->tag = (b >> 4) & 15;
572
573
if (item->tag == HID_ITEM_TAG_LONG) {
574
575
item->format = HID_ITEM_FORMAT_LONG;
576
577
if ((end - start) < 2)
578
return NULL;
579
580
item->size = *start++;
581
item->tag = *start++;
582
583
if ((end - start) < item->size)
584
return NULL;
585
586
item->data.longdata = start;
587
start += item->size;
588
return start;
589
}
590
591
item->format = HID_ITEM_FORMAT_SHORT;
592
item->size = b & 3;
593
594
switch (item->size) {
595
596
case 0:
597
return start;
598
599
case 1:
600
if ((end - start) < 1)
601
return NULL;
602
item->data.u8 = *start++;
603
return start;
604
605
case 2:
606
if ((end - start) < 2)
607
return NULL;
608
item->data.u16 = le16_to_cpu(get_unaligned((__le16*)start));
609
start = (__u8 *)((__le16 *)start + 1);
610
return start;
611
612
case 3:
613
item->size++;
614
if ((end - start) < 4)
615
return NULL;
616
item->data.u32 = le32_to_cpu(get_unaligned((__le32*)start));
617
start = (__u8 *)((__le32 *)start + 1);
618
return start;
619
}
620
621
return NULL;
622
}
623
624
/*
625
* Parse a report description into a hid_device structure. Reports are
626
* enumerated, fields are attached to these reports.
627
*/
628
629
static struct hid_device *hid_parse_report(__u8 *start, unsigned size)
630
{
631
struct hid_device *device;
632
struct hid_parser *parser;
633
struct hid_item item;
634
__u8 *end;
635
unsigned i;
636
static int (*dispatch_type[])(struct hid_parser *parser,
637
struct hid_item *item) = {
638
hid_parser_main,
639
hid_parser_global,
640
hid_parser_local,
641
hid_parser_reserved
642
};
643
644
if (!(device = kmalloc(sizeof(struct hid_device), GFP_KERNEL)))
645
return NULL;
646
memset(device, 0, sizeof(struct hid_device));
647
648
if (!(device->collection =kmalloc(sizeof(struct hid_collection) *
649
HID_DEFAULT_NUM_COLLECTIONS, GFP_KERNEL))) {
650
kfree(device);
651
return NULL;
652
}
653
memset(device->collection, 0, sizeof(struct hid_collection) *
654
HID_DEFAULT_NUM_COLLECTIONS);
655
device->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
656
657
for (i = 0; i < HID_REPORT_TYPES; i++)
658
INIT_LIST_HEAD(&device->report_enum[i].report_list);
659
660
if (!(device->rdesc = (__u8 *)kmalloc(size, GFP_KERNEL))) {
661
kfree(device->collection);
662
kfree(device);
663
return NULL;
664
}
665
memcpy(device->rdesc, start, size);
666
device->rsize = size;
667
668
if (!(parser = kmalloc(sizeof(struct hid_parser), GFP_KERNEL))) {
669
kfree(device->rdesc);
670
kfree(device->collection);
671
kfree(device);
672
return NULL;
673
}
674
memset(parser, 0, sizeof(struct hid_parser));
675
parser->device = device;
676
677
end = start + size;
678
while ((start = fetch_item(start, end, &item)) != 0) {
679
680
if (item.format != HID_ITEM_FORMAT_SHORT) {
681
dbg("unexpected long global item");
682
kfree(device->collection);
683
hid_free_device(device);
684
kfree(parser);
685
return NULL;
686
}
687
688
if (dispatch_type[item.type](parser, &item)) {
689
dbg("item %u %u %u %u parsing failed\n",
690
item.format, (unsigned)item.size, (unsigned)item.type, (unsigned)item.tag);
691
kfree(device->collection);
692
hid_free_device(device);
693
kfree(parser);
694
return NULL;
695
}
696
697
if (start == end) {
698
if (parser->collection_stack_ptr) {
699
dbg("unbalanced collection at end of report description");
700
kfree(device->collection);
701
hid_free_device(device);
702
kfree(parser);
703
return NULL;
704
}
705
if (parser->local.delimiter_depth) {
706
dbg("unbalanced delimiter at end of report description");
707
kfree(device->collection);
708
hid_free_device(device);
709
kfree(parser);
710
return NULL;
711
}
712
kfree(parser);
713
return device;
714
}
715
}
716
717
dbg("item fetching failed at offset %d\n", (int)(end - start));
718
kfree(device->collection);
719
hid_free_device(device);
720
kfree(parser);
721
return NULL;
722
}
723
724
/*
725
* Convert a signed n-bit integer to signed 32-bit integer. Common
726
* cases are done through the compiler, the screwed things has to be
727
* done by hand.
728
*/
729
730
static __inline__ __s32 snto32(__u32 value, unsigned n)
731
{
732
switch (n) {
733
case 8: return ((__s8)value);
734
case 16: return ((__s16)value);
735
case 32: return ((__s32)value);
736
}
737
return value & (1 << (n - 1)) ? value | (-1 << n) : value;
738
}
739
740
/*
741
* Convert a signed 32-bit integer to a signed n-bit integer.
742
*/
743
744
static __inline__ __u32 s32ton(__s32 value, unsigned n)
745
{
746
__s32 a = value >> (n - 1);
747
if (a && a != -1)
748
return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
749
return value & ((1 << n) - 1);
750
}
751
752
/*
753
* Extract/implement a data field from/to a report.
754
*/
755
756
static __inline__ __u32 extract(__u8 *report, unsigned offset, unsigned n)
757
{
758
report += (offset >> 5) << 2; offset &= 31;
759
return (le64_to_cpu(get_unaligned((__le64*)report)) >> offset) & ((1 << n) - 1);
760
}
761
762
static __inline__ void implement(__u8 *report, unsigned offset, unsigned n, __u32 value)
763
{
764
report += (offset >> 5) << 2; offset &= 31;
765
put_unaligned((get_unaligned((__le64*)report)
766
& cpu_to_le64(~((((__u64) 1 << n) - 1) << offset)))
767
| cpu_to_le64((__u64)value << offset), (__le64*)report);
768
}
769
770
/*
771
* Search an array for a value.
772
*/
773
774
static __inline__ int search(__s32 *array, __s32 value, unsigned n)
775
{
776
while (n--) {
777
if (*array++ == value)
778
return 0;
779
}
780
return -1;
781
}
782
783
static void hid_process_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value, struct pt_regs *regs)
784
{
785
hid_dump_input(usage, value);
786
if (hid->claimed & HID_CLAIMED_INPUT)
787
hidinput_hid_event(hid, field, usage, value, regs);
788
if (hid->claimed & HID_CLAIMED_HIDDEV)
789
hiddev_hid_event(hid, field, usage, value, regs);
790
}
791
792
/*
793
* Analyse a received field, and fetch the data from it. The field
794
* content is stored for next report processing (we do differential
795
* reporting to the layer).
796
*/
797
798
static void hid_input_field(struct hid_device *hid, struct hid_field *field, __u8 *data, struct pt_regs *regs)
799
{
800
unsigned n;
801
unsigned count = field->report_count;
802
unsigned offset = field->report_offset;
803
unsigned size = field->report_size;
804
__s32 min = field->logical_minimum;
805
__s32 max = field->logical_maximum;
806
__s32 *value;
807
808
value = kmalloc(sizeof(__s32)*count, GFP_ATOMIC);
809
if (!value)
810
return;
811
812
for (n = 0; n < count; n++) {
813
814
value[n] = min < 0 ? snto32(extract(data, offset + n * size, size), size) :
815
extract(data, offset + n * size, size);
816
817
if (!(field->flags & HID_MAIN_ITEM_VARIABLE) /* Ignore report if ErrorRollOver */
818
&& value[n] >= min && value[n] <= max
819
&& field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
820
goto exit;
821
}
822
823
for (n = 0; n < count; n++) {
824
825
if (HID_MAIN_ITEM_VARIABLE & field->flags) {
826
827
if (field->flags & HID_MAIN_ITEM_RELATIVE) {
828
if (!value[n])
829
continue;
830
} else {
831
if (value[n] == field->value[n])
832
continue;
833
}
834
hid_process_event(hid, field, &field->usage[n], value[n], regs);
835
continue;
836
}
837
838
if (field->value[n] >= min && field->value[n] <= max
839
&& field->usage[field->value[n] - min].hid
840
&& search(value, field->value[n], count))
841
hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, regs);
842
843
if (value[n] >= min && value[n] <= max
844
&& field->usage[value[n] - min].hid
845
&& search(field->value, value[n], count))
846
hid_process_event(hid, field, &field->usage[value[n] - min], 1, regs);
847
}
848
849
memcpy(field->value, value, count * sizeof(__s32));
850
exit:
851
kfree(value);
852
}
853
854
static int hid_input_report(int type, struct urb *urb, struct pt_regs *regs)
855
{
856
struct hid_device *hid = urb->context;
857
struct hid_report_enum *report_enum = hid->report_enum + type;
858
u8 *data = urb->transfer_buffer;
859
int len = urb->actual_length;
860
struct hid_report *report;
861
int n, size;
862
863
if (!len) {
864
dbg("empty report");
865
return -1;
866
}
867
868
#ifdef DEBUG_DATA
869
printk(KERN_DEBUG __FILE__ ": report (size %u) (%snumbered)\n", len, report_enum->numbered ? "" : "un");
870
#endif
871
872
n = 0; /* Normally report number is 0 */
873
if (report_enum->numbered) { /* Device uses numbered reports, data[0] is report number */
874
n = *data++;
875
len--;
876
}
877
878
#ifdef DEBUG_DATA
879
{
880
int i;
881
printk(KERN_DEBUG __FILE__ ": report %d (size %u) = ", n, len);
882
for (i = 0; i < len; i++)
883
printk(" %02x", data[i]);
884
printk("\n");
885
}
886
#endif
887
888
if (!(report = report_enum->report_id_hash[n])) {
889
dbg("undefined report_id %d received", n);
890
return -1;
891
}
892
893
size = ((report->size - 1) >> 3) + 1;
894
895
if (len < size) {
896
dbg("report %d is too short, (%d < %d)", report->id, len, size);
897
return -1;
898
}
899
900
if (hid->claimed & HID_CLAIMED_HIDDEV)
901
hiddev_report_event(hid, report);
902
903
for (n = 0; n < report->maxfield; n++)
904
hid_input_field(hid, report->field[n], data, regs);
905
906
if (hid->claimed & HID_CLAIMED_INPUT)
907
hidinput_report_event(hid, report);
908
909
return 0;
910
}
911
912
/*
913
* Input interrupt completion handler.
914
*/
915
916
static void hid_irq_in(struct urb *urb, struct pt_regs *regs)
917
{
918
struct hid_device *hid = urb->context;
919
int status;
920
921
switch (urb->status) {
922
case 0: /* success */
923
hid_input_report(HID_INPUT_REPORT, urb, regs);
924
break;
925
case -ECONNRESET: /* unlink */
926
case -ENOENT:
927
case -ESHUTDOWN:
928
return;
929
case -ETIMEDOUT: /* NAK */
930
break;
931
default: /* error */
932
warn("input irq status %d received", urb->status);
933
}
934
935
status = usb_submit_urb(urb, SLAB_ATOMIC);
936
if (status)
937
err("can't resubmit intr, %s-%s/input%d, status %d",
938
hid->dev->bus->bus_name, hid->dev->devpath,
939
hid->ifnum, status);
940
}
941
942
/*
943
* Output the field into the report.
944
*/
945
946
static void hid_output_field(struct hid_field *field, __u8 *data)
947
{
948
unsigned count = field->report_count;
949
unsigned offset = field->report_offset;
950
unsigned size = field->report_size;
951
unsigned n;
952
953
for (n = 0; n < count; n++) {
954
if (field->logical_minimum < 0) /* signed values */
955
implement(data, offset + n * size, size, s32ton(field->value[n], size));
956
else /* unsigned values */
957
implement(data, offset + n * size, size, field->value[n]);
958
}
959
}
960
961
/*
962
* Create a report.
963
*/
964
965
static void hid_output_report(struct hid_report *report, __u8 *data)
966
{
967
unsigned n;
968
969
if (report->id > 0)
970
*data++ = report->id;
971
972
for (n = 0; n < report->maxfield; n++)
973
hid_output_field(report->field[n], data);
974
}
975
976
/*
977
* Set a field value. The report this field belongs to has to be
978
* created and transferred to the device, to set this value in the
979
* device.
980
*/
981
982
int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
983
{
984
unsigned size = field->report_size;
985
986
hid_dump_input(field->usage + offset, value);
987
988
if (offset >= field->report_count) {
989
dbg("offset (%d) exceeds report_count (%d)", offset, field->report_count);
990
hid_dump_field(field, 8);
991
return -1;
992
}
993
if (field->logical_minimum < 0) {
994
if (value != snto32(s32ton(value, size), size)) {
995
dbg("value %d is out of range", value);
996
return -1;
997
}
998
}
999
field->value[offset] = value;
1000
return 0;
1001
}
1002
1003
int hid_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
1004
{
1005
struct hid_report_enum *report_enum = hid->report_enum + HID_OUTPUT_REPORT;
1006
struct list_head *list = report_enum->report_list.next;
1007
int i, j;
1008
1009
while (list != &report_enum->report_list) {
1010
struct hid_report *report = (struct hid_report *) list;
1011
list = list->next;
1012
for (i = 0; i < report->maxfield; i++) {
1013
*field = report->field[i];
1014
for (j = 0; j < (*field)->maxusage; j++)
1015
if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
1016
return j;
1017
}
1018
}
1019
return -1;
1020
}
1021
1022
/*
1023
* Find a report with a specified HID usage.
1024
*/
1025
1026
int hid_find_report_by_usage(struct hid_device *hid, __u32 wanted_usage, struct hid_report **report, int type)
1027
{
1028
struct hid_report_enum *report_enum = hid->report_enum + type;
1029
struct list_head *list = report_enum->report_list.next;
1030
int i, j;
1031
1032
while (list != &report_enum->report_list) {
1033
*report = (struct hid_report *) list;
1034
list = list->next;
1035
for (i = 0; i < (*report)->maxfield; i++) {
1036
struct hid_field *field = (*report)->field[i];
1037
for (j = 0; j < field->maxusage; j++)
1038
if (field->logical == wanted_usage)
1039
return j;
1040
}
1041
}
1042
return -1;
1043
}
1044
1045
#if 0
1046
static int hid_find_field_in_report(struct hid_report *report, __u32 wanted_usage, struct hid_field **field)
1047
{
1048
int i, j;
1049
1050
for (i = 0; i < report->maxfield; i++) {
1051
*field = report->field[i];
1052
for (j = 0; j < (*field)->maxusage; j++)
1053
if ((*field)->usage[j].hid == wanted_usage)
1054
return j;
1055
}
1056
1057
return -1;
1058
}
1059
#endif
1060
1061
static int hid_submit_out(struct hid_device *hid)
1062
{
1063
struct hid_report *report;
1064
1065
report = hid->out[hid->outtail];
1066
1067
hid_output_report(report, hid->outbuf);
1068
hid->urbout->transfer_buffer_length = ((report->size - 1) >> 3) + 1 + (report->id > 0);
1069
hid->urbout->dev = hid->dev;
1070
1071
dbg("submitting out urb");
1072
1073
if (usb_submit_urb(hid->urbout, GFP_ATOMIC)) {
1074
err("usb_submit_urb(out) failed");
1075
return -1;
1076
}
1077
1078
return 0;
1079
}
1080
1081
static int hid_submit_ctrl(struct hid_device *hid)
1082
{
1083
struct hid_report *report;
1084
unsigned char dir;
1085
int len;
1086
1087
report = hid->ctrl[hid->ctrltail].report;
1088
dir = hid->ctrl[hid->ctrltail].dir;
1089
1090
len = ((report->size - 1) >> 3) + 1 + (report->id > 0);
1091
if (dir == USB_DIR_OUT) {
1092
hid_output_report(report, hid->ctrlbuf);
1093
hid->urbctrl->pipe = usb_sndctrlpipe(hid->dev, 0);
1094
hid->urbctrl->transfer_buffer_length = len;
1095
} else {
1096
int maxpacket, padlen;
1097
1098
hid->urbctrl->pipe = usb_rcvctrlpipe(hid->dev, 0);
1099
maxpacket = usb_maxpacket(hid->dev, hid->urbctrl->pipe, 0);
1100
if (maxpacket > 0) {
1101
padlen = (len + maxpacket - 1) / maxpacket;
1102
padlen *= maxpacket;
1103
if (padlen > HID_BUFFER_SIZE)
1104
padlen = HID_BUFFER_SIZE;
1105
} else
1106
padlen = 0;
1107
hid->urbctrl->transfer_buffer_length = padlen;
1108
}
1109
hid->urbctrl->dev = hid->dev;
1110
1111
hid->cr->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE | dir;
1112
hid->cr->bRequest = (dir == USB_DIR_OUT) ? HID_REQ_SET_REPORT : HID_REQ_GET_REPORT;
1113
hid->cr->wValue = cpu_to_le16(((report->type + 1) << 8) | report->id);
1114
hid->cr->wIndex = cpu_to_le16(hid->ifnum);
1115
hid->cr->wLength = cpu_to_le16(len);
1116
1117
dbg("submitting ctrl urb: %s wValue=0x%04x wIndex=0x%04x wLength=%u",
1118
hid->cr->bRequest == HID_REQ_SET_REPORT ? "Set_Report" : "Get_Report",
1119
hid->cr->wValue, hid->cr->wIndex, hid->cr->wLength);
1120
1121
if (usb_submit_urb(hid->urbctrl, GFP_ATOMIC)) {
1122
err("usb_submit_urb(ctrl) failed");
1123
return -1;
1124
}
1125
1126
return 0;
1127
}
1128
1129
/*
1130
* Output interrupt completion handler.
1131
*/
1132
1133
static void hid_irq_out(struct urb *urb, struct pt_regs *regs)
1134
{
1135
struct hid_device *hid = urb->context;
1136
unsigned long flags;
1137
1138
switch (urb->status) {
1139
case 0: /* success */
1140
case -ECONNRESET: /* unlink */
1141
case -ENOENT:
1142
case -ESHUTDOWN:
1143
break;
1144
default: /* error */
1145
warn("output irq status %d received", urb->status);
1146
}
1147
1148
spin_lock_irqsave(&hid->outlock, flags);
1149
1150
hid->outtail = (hid->outtail + 1) & (HID_OUTPUT_FIFO_SIZE - 1);
1151
1152
if (hid->outhead != hid->outtail) {
1153
if (hid_submit_out(hid)) {
1154
clear_bit(HID_OUT_RUNNING, &hid->iofl);;
1155
wake_up(&hid->wait);
1156
}
1157
spin_unlock_irqrestore(&hid->outlock, flags);
1158
return;
1159
}
1160
1161
clear_bit(HID_OUT_RUNNING, &hid->iofl);
1162
spin_unlock_irqrestore(&hid->outlock, flags);
1163
wake_up(&hid->wait);
1164
}
1165
1166
/*
1167
* Control pipe completion handler.
1168
*/
1169
1170
static void hid_ctrl(struct urb *urb, struct pt_regs *regs)
1171
{
1172
struct hid_device *hid = urb->context;
1173
unsigned long flags;
1174
1175
spin_lock_irqsave(&hid->ctrllock, flags);
1176
1177
switch (urb->status) {
1178
case 0: /* success */
1179
if (hid->ctrl[hid->ctrltail].dir == USB_DIR_IN)
1180
hid_input_report(hid->ctrl[hid->ctrltail].report->type, urb, regs);
1181
case -ECONNRESET: /* unlink */
1182
case -ENOENT:
1183
case -ESHUTDOWN:
1184
case -EPIPE: /* report not available */
1185
break;
1186
default: /* error */
1187
warn("ctrl urb status %d received", urb->status);
1188
}
1189
1190
hid->ctrltail = (hid->ctrltail + 1) & (HID_CONTROL_FIFO_SIZE - 1);
1191
1192
if (hid->ctrlhead != hid->ctrltail) {
1193
if (hid_submit_ctrl(hid)) {
1194
clear_bit(HID_CTRL_RUNNING, &hid->iofl);
1195
wake_up(&hid->wait);
1196
}
1197
spin_unlock_irqrestore(&hid->ctrllock, flags);
1198
return;
1199
}
1200
1201
clear_bit(HID_CTRL_RUNNING, &hid->iofl);
1202
spin_unlock_irqrestore(&hid->ctrllock, flags);
1203
wake_up(&hid->wait);
1204
}
1205
1206
void hid_submit_report(struct hid_device *hid, struct hid_report *report, unsigned char dir)
1207
{
1208
int head;
1209
unsigned long flags;
1210
1211
if ((hid->quirks & HID_QUIRK_NOGET) && dir == USB_DIR_IN)
1212
return;
1213
1214
if (hid->urbout && dir == USB_DIR_OUT && report->type == HID_OUTPUT_REPORT) {
1215
1216
spin_lock_irqsave(&hid->outlock, flags);
1217
1218
if ((head = (hid->outhead + 1) & (HID_OUTPUT_FIFO_SIZE - 1)) == hid->outtail) {
1219
spin_unlock_irqrestore(&hid->outlock, flags);
1220
warn("output queue full");
1221
return;
1222
}
1223
1224
hid->out[hid->outhead] = report;
1225
hid->outhead = head;
1226
1227
if (!test_and_set_bit(HID_OUT_RUNNING, &hid->iofl))
1228
if (hid_submit_out(hid))
1229
clear_bit(HID_OUT_RUNNING, &hid->iofl);
1230
1231
spin_unlock_irqrestore(&hid->outlock, flags);
1232
return;
1233
}
1234
1235
spin_lock_irqsave(&hid->ctrllock, flags);
1236
1237
if ((head = (hid->ctrlhead + 1) & (HID_CONTROL_FIFO_SIZE - 1)) == hid->ctrltail) {
1238
spin_unlock_irqrestore(&hid->ctrllock, flags);
1239
warn("control queue full");
1240
return;
1241
}
1242
1243
hid->ctrl[hid->ctrlhead].report = report;
1244
hid->ctrl[hid->ctrlhead].dir = dir;
1245
hid->ctrlhead = head;
1246
1247
if (!test_and_set_bit(HID_CTRL_RUNNING, &hid->iofl))
1248
if (hid_submit_ctrl(hid))
1249
clear_bit(HID_CTRL_RUNNING, &hid->iofl);
1250
1251
spin_unlock_irqrestore(&hid->ctrllock, flags);
1252
}
1253
1254
int hid_wait_io(struct hid_device *hid)
1255
{
1256
DECLARE_WAITQUEUE(wait, current);
1257
int timeout = 10*HZ;
1258
1259
set_current_state(TASK_UNINTERRUPTIBLE);
1260
add_wait_queue(&hid->wait, &wait);
1261
1262
while (timeout && (test_bit(HID_CTRL_RUNNING, &hid->iofl) ||
1263
test_bit(HID_OUT_RUNNING, &hid->iofl)))
1264
timeout = schedule_timeout(timeout);
1265
1266
set_current_state(TASK_RUNNING);
1267
remove_wait_queue(&hid->wait, &wait);
1268
1269
if (!timeout) {
1270
dbg("timeout waiting for ctrl or out queue to clear");
1271
return -1;
1272
}
1273
1274
return 0;
1275
}
1276
1277
static int hid_get_class_descriptor(struct usb_device *dev, int ifnum,
1278
unsigned char type, void *buf, int size)
1279
{
1280
return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
1281
USB_REQ_GET_DESCRIPTOR, USB_RECIP_INTERFACE | USB_DIR_IN,
1282
(type << 8), ifnum, buf, size, HZ * USB_CTRL_GET_TIMEOUT);
1283
}
1284
1285
int hid_open(struct hid_device *hid)
1286
{
1287
if (hid->open++)
1288
return 0;
1289
1290
hid->urbin->dev = hid->dev;
1291
1292
if (usb_submit_urb(hid->urbin, GFP_KERNEL))
1293
return -EIO;
1294
1295
return 0;
1296
}
1297
1298
void hid_close(struct hid_device *hid)
1299
{
1300
if (!--hid->open)
1301
usb_kill_urb(hid->urbin);
1302
}
1303
1304
/*
1305
* Initialize all reports
1306
*/
1307
1308
void hid_init_reports(struct hid_device *hid)
1309
{
1310
struct hid_report_enum *report_enum;
1311
struct hid_report *report;
1312
struct list_head *list;
1313
int err, ret;
1314
1315
/*
1316
* The Set_Idle request is supposed to affect only the
1317
* "Interrupt In" pipe. Unfortunately, buggy devices such as
1318
* the BTC keyboard (ID 046e:5303) the request also affects
1319
* Get_Report requests on the control pipe. In the worst
1320
* case, if the device was put on idle for an indefinite
1321
* amount of time (as we do below) and there are no input
1322
* events to report, the Get_Report requests will just hang
1323
* until we get a USB timeout. To avoid this, we temporarily
1324
* establish a minimal idle time of 1ms. This shouldn't hurt
1325
* bugfree devices and will cause a worst-case extra delay of
1326
* 1ms for buggy ones.
1327
*/
1328
usb_control_msg(hid->dev, usb_sndctrlpipe(hid->dev, 0),
1329
HID_REQ_SET_IDLE, USB_TYPE_CLASS | USB_RECIP_INTERFACE, (1 << 8),
1330
hid->ifnum, NULL, 0, HZ * USB_CTRL_SET_TIMEOUT);
1331
1332
report_enum = hid->report_enum + HID_INPUT_REPORT;
1333
list = report_enum->report_list.next;
1334
while (list != &report_enum->report_list) {
1335
report = (struct hid_report *) list;
1336
hid_submit_report(hid, report, USB_DIR_IN);
1337
list = list->next;
1338
}
1339
1340
report_enum = hid->report_enum + HID_FEATURE_REPORT;
1341
list = report_enum->report_list.next;
1342
while (list != &report_enum->report_list) {
1343
report = (struct hid_report *) list;
1344
hid_submit_report(hid, report, USB_DIR_IN);
1345
list = list->next;
1346
}
1347
1348
err = 0;
1349
ret = hid_wait_io(hid);
1350
while (ret) {
1351
err |= ret;
1352
if (test_bit(HID_CTRL_RUNNING, &hid->iofl))
1353
usb_unlink_urb(hid->urbctrl);
1354
if (test_bit(HID_OUT_RUNNING, &hid->iofl))
1355
usb_unlink_urb(hid->urbout);
1356
ret = hid_wait_io(hid);
1357
}
1358
1359
if (err)
1360
warn("timeout initializing reports\n");
1361
1362
report_enum = hid->report_enum + HID_INPUT_REPORT;
1363
list = report_enum->report_list.next;
1364
while (list != &report_enum->report_list) {
1365
report = (struct hid_report *) list;
1366
usb_control_msg(hid->dev, usb_sndctrlpipe(hid->dev, 0),
1367
HID_REQ_SET_IDLE, USB_TYPE_CLASS | USB_RECIP_INTERFACE, report->id,
1368
hid->ifnum, NULL, 0, HZ * USB_CTRL_SET_TIMEOUT);
1369
list = list->next;
1370
}
1371
}
1372
1373
#define USB_VENDOR_ID_WACOM 0x056a
1374
#define USB_DEVICE_ID_WACOM_PENPARTNER 0x0000
1375
#define USB_DEVICE_ID_WACOM_GRAPHIRE 0x0010
1376
#define USB_DEVICE_ID_WACOM_INTUOS 0x0020
1377
#define USB_DEVICE_ID_WACOM_PL 0x0030
1378
#define USB_DEVICE_ID_WACOM_INTUOS2 0x0040
1379
#define USB_DEVICE_ID_WACOM_VOLITO 0x0060
1380
#define USB_DEVICE_ID_WACOM_PTU 0x0003
1381
#define USB_DEVICE_ID_WACOM_INTUOS3 0x00B0
1382
1383
#define USB_VENDOR_ID_KBGEAR 0x084e
1384
#define USB_DEVICE_ID_KBGEAR_JAMSTUDIO 0x1001
1385
1386
#define USB_VENDOR_ID_AIPTEK 0x08ca
1387
#define USB_DEVICE_ID_AIPTEK_01 0x0001
1388
#define USB_DEVICE_ID_AIPTEK_10 0x0010
1389
#define USB_DEVICE_ID_AIPTEK_20 0x0020
1390
#define USB_DEVICE_ID_AIPTEK_21 0x0021
1391
#define USB_DEVICE_ID_AIPTEK_22 0x0022
1392
#define USB_DEVICE_ID_AIPTEK_23 0x0023
1393
#define USB_DEVICE_ID_AIPTEK_24 0x0024
1394
1395
#define USB_VENDOR_ID_GRIFFIN 0x077d
1396
#define USB_DEVICE_ID_POWERMATE 0x0410
1397
#define USB_DEVICE_ID_SOUNDKNOB 0x04AA
1398
1399
#define USB_VENDOR_ID_ATEN 0x0557
1400
#define USB_DEVICE_ID_ATEN_UC100KM 0x2004
1401
#define USB_DEVICE_ID_ATEN_CS124U 0x2202
1402
#define USB_DEVICE_ID_ATEN_2PORTKVM 0x2204
1403
#define USB_DEVICE_ID_ATEN_4PORTKVM 0x2205
1404
#define USB_DEVICE_ID_ATEN_4PORTKVMC 0x2208
1405
1406
#define USB_VENDOR_ID_TOPMAX 0x0663
1407
#define USB_DEVICE_ID_TOPMAX_COBRAPAD 0x0103
1408
1409
#define USB_VENDOR_ID_HAPP 0x078b
1410
#define USB_DEVICE_ID_UGCI_DRIVING 0x0010
1411
#define USB_DEVICE_ID_UGCI_FLYING 0x0020
1412
#define USB_DEVICE_ID_UGCI_FIGHTING 0x0030
1413
1414
#define USB_VENDOR_ID_MGE 0x0463
1415
#define USB_DEVICE_ID_MGE_UPS 0xffff
1416
#define USB_DEVICE_ID_MGE_UPS1 0x0001
1417
1418
#define USB_VENDOR_ID_ONTRAK 0x0a07
1419
#define USB_DEVICE_ID_ONTRAK_ADU100 0x0064
1420
1421
#define USB_VENDOR_ID_TANGTOP 0x0d3d
1422
#define USB_DEVICE_ID_TANGTOP_USBPS2 0x0001
1423
1424
#define USB_VENDOR_ID_ESSENTIAL_REALITY 0x0d7f
1425
#define USB_DEVICE_ID_ESSENTIAL_REALITY_P5 0x0100
1426
1427
#define USB_VENDOR_ID_A4TECH 0x09DA
1428
#define USB_DEVICE_ID_A4TECH_WCP32PU 0x0006
1429
1430
#define USB_VENDOR_ID_CYPRESS 0x04b4
1431
#define USB_DEVICE_ID_CYPRESS_MOUSE 0x0001
1432
1433
#define USB_VENDOR_ID_BERKSHIRE 0x0c98
1434
#define USB_DEVICE_ID_BERKSHIRE_PCWD 0x1140
1435
1436
#define USB_VENDOR_ID_ALPS 0x0433
1437
#define USB_DEVICE_ID_IBM_GAMEPAD 0x1101
1438
1439
#define USB_VENDOR_ID_SAITEK 0x06a3
1440
#define USB_DEVICE_ID_SAITEK_RUMBLEPAD 0xff17
1441
1442
#define USB_VENDOR_ID_NEC 0x073e
1443
#define USB_DEVICE_ID_NEC_USB_GAME_PAD 0x0301
1444
1445
#define USB_VENDOR_ID_CHIC 0x05fe
1446
#define USB_DEVICE_ID_CHIC_GAMEPAD 0x0014
1447
1448
#define USB_VENDOR_ID_GLAB 0x06c2
1449
#define USB_DEVICE_ID_4_PHIDGETSERVO_30 0x0038
1450
#define USB_DEVICE_ID_1_PHIDGETSERVO_30 0x0039
1451
#define USB_DEVICE_ID_8_8_8_IF_KIT 0x0045
1452
#define USB_DEVICE_ID_0_0_4_IF_KIT 0x0040
1453
#define USB_DEVICE_ID_0_8_8_IF_KIT 0x0053
1454
1455
#define USB_VENDOR_ID_WISEGROUP 0x0925
1456
#define USB_DEVICE_ID_1_PHIDGETSERVO_20 0x8101
1457
#define USB_DEVICE_ID_4_PHIDGETSERVO_20 0x8104
1458
1459
#define USB_VENDOR_ID_CODEMERCS 0x07c0
1460
#define USB_DEVICE_ID_CODEMERCS_IOW40 0x1500
1461
#define USB_DEVICE_ID_CODEMERCS_IOW24 0x1501
1462
1463
1464
static struct hid_blacklist {
1465
__u16 idVendor;
1466
__u16 idProduct;
1467
unsigned quirks;
1468
} hid_blacklist[] = {
1469
1470
{ USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01, HID_QUIRK_IGNORE },
1471
{ USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10, HID_QUIRK_IGNORE },
1472
{ USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20, HID_QUIRK_IGNORE },
1473
{ USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21, HID_QUIRK_IGNORE },
1474
{ USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22, HID_QUIRK_IGNORE },
1475
{ USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23, HID_QUIRK_IGNORE },
1476
{ USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24, HID_QUIRK_IGNORE },
1477
{ USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD, HID_QUIRK_IGNORE },
1478
{ USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW40, HID_QUIRK_IGNORE },
1479
{ USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW24, HID_QUIRK_IGNORE },
1480
{ USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5, HID_QUIRK_IGNORE },
1481
{ USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO, HID_QUIRK_IGNORE },
1482
{ USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE, HID_QUIRK_IGNORE },
1483
{ USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB, HID_QUIRK_IGNORE },
1484
{ USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS, HID_QUIRK_IGNORE },
1485
{ USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1, HID_QUIRK_IGNORE },
1486
{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100, HID_QUIRK_IGNORE },
1487
{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100, HID_QUIRK_IGNORE },
1488
{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200, HID_QUIRK_IGNORE },
1489
{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300, HID_QUIRK_IGNORE },
1490
{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400, HID_QUIRK_IGNORE },
1491
{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500, HID_QUIRK_IGNORE },
1492
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PENPARTNER, HID_QUIRK_IGNORE },
1493
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE, HID_QUIRK_IGNORE },
1494
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 1, HID_QUIRK_IGNORE },
1495
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 2, HID_QUIRK_IGNORE },
1496
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 3, HID_QUIRK_IGNORE },
1497
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 4, HID_QUIRK_IGNORE },
1498
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS, HID_QUIRK_IGNORE },
1499
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS + 1, HID_QUIRK_IGNORE },
1500
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS + 2, HID_QUIRK_IGNORE },
1501
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS + 3, HID_QUIRK_IGNORE },
1502
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS + 4, HID_QUIRK_IGNORE },
1503
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL, HID_QUIRK_IGNORE },
1504
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 1, HID_QUIRK_IGNORE },
1505
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 2, HID_QUIRK_IGNORE },
1506
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 3, HID_QUIRK_IGNORE },
1507
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 4, HID_QUIRK_IGNORE },
1508
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 5, HID_QUIRK_IGNORE },
1509
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 1, HID_QUIRK_IGNORE },
1510
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 2, HID_QUIRK_IGNORE },
1511
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 3, HID_QUIRK_IGNORE },
1512
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 4, HID_QUIRK_IGNORE },
1513
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 5, HID_QUIRK_IGNORE },
1514
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 7, HID_QUIRK_IGNORE },
1515
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_VOLITO, HID_QUIRK_IGNORE },
1516
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PTU, HID_QUIRK_IGNORE },
1517
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS3, HID_QUIRK_IGNORE },
1518
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS3 + 1, HID_QUIRK_IGNORE },
1519
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS3 + 2, HID_QUIRK_IGNORE },
1520
1521
{ USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30, HID_QUIRK_IGNORE },
1522
{ USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30, HID_QUIRK_IGNORE },
1523
{ USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT, HID_QUIRK_IGNORE },
1524
{ USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT, HID_QUIRK_IGNORE },
1525
{ USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT, HID_QUIRK_IGNORE },
1526
1527
{ USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20, HID_QUIRK_IGNORE },
1528
{ USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20, HID_QUIRK_IGNORE },
1529
1530
{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_UC100KM, HID_QUIRK_NOGET },
1531
{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS124U, HID_QUIRK_NOGET },
1532
{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_2PORTKVM, HID_QUIRK_NOGET },
1533
{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVM, HID_QUIRK_NOGET },
1534
{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVMC, HID_QUIRK_NOGET },
1535
{ USB_VENDOR_ID_TANGTOP, USB_DEVICE_ID_TANGTOP_USBPS2, HID_QUIRK_NOGET },
1536
1537
{ USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU, HID_QUIRK_2WHEEL_MOUSE_HACK_BACK },
1538
{ USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE, HID_QUIRK_2WHEEL_MOUSE_HACK_EXTRA },
1539
1540
{ USB_VENDOR_ID_ALPS, USB_DEVICE_ID_IBM_GAMEPAD, HID_QUIRK_BADPAD },
1541
{ USB_VENDOR_ID_CHIC, USB_DEVICE_ID_CHIC_GAMEPAD, HID_QUIRK_BADPAD },
1542
{ USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_DRIVING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
1543
{ USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FLYING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
1544
{ USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FIGHTING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
1545
{ USB_VENDOR_ID_NEC, USB_DEVICE_ID_NEC_USB_GAME_PAD, HID_QUIRK_BADPAD },
1546
{ USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RUMBLEPAD, HID_QUIRK_BADPAD },
1547
{ USB_VENDOR_ID_TOPMAX, USB_DEVICE_ID_TOPMAX_COBRAPAD, HID_QUIRK_BADPAD },
1548
1549
{ 0, 0 }
1550
};
1551
1552
static int hid_alloc_buffers(struct usb_device *dev, struct hid_device *hid)
1553
{
1554
if (!(hid->inbuf = usb_buffer_alloc(dev, HID_BUFFER_SIZE, SLAB_ATOMIC, &hid->inbuf_dma)))
1555
return -1;
1556
if (!(hid->outbuf = usb_buffer_alloc(dev, HID_BUFFER_SIZE, SLAB_ATOMIC, &hid->outbuf_dma)))
1557
return -1;
1558
if (!(hid->cr = usb_buffer_alloc(dev, sizeof(*(hid->cr)), SLAB_ATOMIC, &hid->cr_dma)))
1559
return -1;
1560
if (!(hid->ctrlbuf = usb_buffer_alloc(dev, HID_BUFFER_SIZE, SLAB_ATOMIC, &hid->ctrlbuf_dma)))
1561
return -1;
1562
1563
return 0;
1564
}
1565
1566
static void hid_free_buffers(struct usb_device *dev, struct hid_device *hid)
1567
{
1568
if (hid->inbuf)
1569
usb_buffer_free(dev, HID_BUFFER_SIZE, hid->inbuf, hid->inbuf_dma);
1570
if (hid->outbuf)
1571
usb_buffer_free(dev, HID_BUFFER_SIZE, hid->outbuf, hid->outbuf_dma);
1572
if (hid->cr)
1573
usb_buffer_free(dev, sizeof(*(hid->cr)), hid->cr, hid->cr_dma);
1574
if (hid->ctrlbuf)
1575
usb_buffer_free(dev, HID_BUFFER_SIZE, hid->ctrlbuf, hid->ctrlbuf_dma);
1576
}
1577
1578
static struct hid_device *usb_hid_configure(struct usb_interface *intf)
1579
{
1580
struct usb_host_interface *interface = intf->cur_altsetting;
1581
struct usb_device *dev = interface_to_usbdev (intf);
1582
struct hid_descriptor *hdesc;
1583
struct hid_device *hid;
1584
unsigned quirks = 0, rsize = 0;
1585
char *buf, *rdesc;
1586
int n;
1587
1588
for (n = 0; hid_blacklist[n].idVendor; n++)
1589
if ((hid_blacklist[n].idVendor == dev->descriptor.idVendor) &&
1590
(hid_blacklist[n].idProduct == dev->descriptor.idProduct))
1591
quirks = hid_blacklist[n].quirks;
1592
1593
if (quirks & HID_QUIRK_IGNORE)
1594
return NULL;
1595
1596
if (usb_get_extra_descriptor(interface, HID_DT_HID, &hdesc) && ((!interface->desc.bNumEndpoints) ||
1597
usb_get_extra_descriptor(&interface->endpoint[0], HID_DT_HID, &hdesc))) {
1598
dbg("class descriptor not present\n");
1599
return NULL;
1600
}
1601
1602
for (n = 0; n < hdesc->bNumDescriptors; n++)
1603
if (hdesc->desc[n].bDescriptorType == HID_DT_REPORT)
1604
rsize = le16_to_cpu(hdesc->desc[n].wDescriptorLength);
1605
1606
if (!rsize || rsize > HID_MAX_DESCRIPTOR_SIZE) {
1607
dbg("weird size of report descriptor (%u)", rsize);
1608
return NULL;
1609
}
1610
1611
if (!(rdesc = kmalloc(rsize, GFP_KERNEL))) {
1612
dbg("couldn't allocate rdesc memory");
1613
return NULL;
1614
}
1615
1616
if ((n = hid_get_class_descriptor(dev, interface->desc.bInterfaceNumber, HID_DT_REPORT, rdesc, rsize)) < 0) {
1617
dbg("reading report descriptor failed");
1618
kfree(rdesc);
1619
return NULL;
1620
}
1621
1622
#ifdef DEBUG_DATA
1623
printk(KERN_DEBUG __FILE__ ": report descriptor (size %u, read %d) = ", rsize, n);
1624
for (n = 0; n < rsize; n++)
1625
printk(" %02x", (unsigned char) rdesc[n]);
1626
printk("\n");
1627
#endif
1628
1629
if (!(hid = hid_parse_report(rdesc, rsize))) {
1630
dbg("parsing report descriptor failed");
1631
kfree(rdesc);
1632
return NULL;
1633
}
1634
1635
kfree(rdesc);
1636
hid->quirks = quirks;
1637
1638
if (hid_alloc_buffers(dev, hid)) {
1639
hid_free_buffers(dev, hid);
1640
goto fail;
1641
}
1642
1643
for (n = 0; n < interface->desc.bNumEndpoints; n++) {
1644
1645
struct usb_endpoint_descriptor *endpoint;
1646
int pipe;
1647
int interval;
1648
1649
endpoint = &interface->endpoint[n].desc;
1650
if ((endpoint->bmAttributes & 3) != 3) /* Not an interrupt endpoint */
1651
continue;
1652
1653
/* handle potential highspeed HID correctly */
1654
interval = endpoint->bInterval;
1655
if (dev->speed == USB_SPEED_HIGH)
1656
interval = 1 << (interval - 1);
1657
1658
if (endpoint->bEndpointAddress & USB_DIR_IN) {
1659
int len;
1660
1661
if (hid->urbin)
1662
continue;
1663
if (!(hid->urbin = usb_alloc_urb(0, GFP_KERNEL)))
1664
goto fail;
1665
pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
1666
len = usb_maxpacket(dev, pipe, 0);
1667
if (len > HID_BUFFER_SIZE)
1668
len = HID_BUFFER_SIZE;
1669
usb_fill_int_urb(hid->urbin, dev, pipe, hid->inbuf, len,
1670
hid_irq_in, hid, interval);
1671
hid->urbin->transfer_dma = hid->inbuf_dma;
1672
hid->urbin->transfer_flags |=(URB_NO_TRANSFER_DMA_MAP | URB_ASYNC_UNLINK);
1673
} else {
1674
if (hid->urbout)
1675
continue;
1676
if (!(hid->urbout = usb_alloc_urb(0, GFP_KERNEL)))
1677
goto fail;
1678
pipe = usb_sndintpipe(dev, endpoint->bEndpointAddress);
1679
usb_fill_int_urb(hid->urbout, dev, pipe, hid->outbuf, 0,
1680
hid_irq_out, hid, interval);
1681
hid->urbout->transfer_dma = hid->outbuf_dma;
1682
hid->urbout->transfer_flags |= (URB_NO_TRANSFER_DMA_MAP | URB_ASYNC_UNLINK);
1683
}
1684
}
1685
1686
if (!hid->urbin) {
1687
err("couldn't find an input interrupt endpoint");
1688
goto fail;
1689
}
1690
1691
init_waitqueue_head(&hid->wait);
1692
1693
hid->outlock = SPIN_LOCK_UNLOCKED;
1694
hid->ctrllock = SPIN_LOCK_UNLOCKED;
1695
1696
hid->version = le16_to_cpu(hdesc->bcdHID);
1697
hid->country = hdesc->bCountryCode;
1698
hid->dev = dev;
1699
hid->intf = intf;
1700
hid->ifnum = interface->desc.bInterfaceNumber;
1701
1702
hid->name[0] = 0;
1703
1704
if (!(buf = kmalloc(64, GFP_KERNEL)))
1705
goto fail;
1706
1707
if (usb_string(dev, dev->descriptor.iManufacturer, buf, 64) > 0) {
1708
strcat(hid->name, buf);
1709
if (usb_string(dev, dev->descriptor.iProduct, buf, 64) > 0)
1710
snprintf(hid->name, 64, "%s %s", hid->name, buf);
1711
} else if (usb_string(dev, dev->descriptor.iProduct, buf, 128) > 0) {
1712
snprintf(hid->name, 128, "%s", buf);
1713
} else
1714
snprintf(hid->name, 128, "%04x:%04x", dev->descriptor.idVendor, dev->descriptor.idProduct);
1715
1716
usb_make_path(dev, buf, 64);
1717
snprintf(hid->phys, 64, "%s/input%d", buf,
1718
intf->altsetting[0].desc.bInterfaceNumber);
1719
1720
if (usb_string(dev, dev->descriptor.iSerialNumber, hid->uniq, 64) <= 0)
1721
hid->uniq[0] = 0;
1722
1723
kfree(buf);
1724
1725
hid->urbctrl = usb_alloc_urb(0, GFP_KERNEL);
1726
if (!hid->urbctrl)
1727
goto fail;
1728
usb_fill_control_urb(hid->urbctrl, dev, 0, (void *) hid->cr,
1729
hid->ctrlbuf, 1, hid_ctrl, hid);
1730
hid->urbctrl->setup_dma = hid->cr_dma;
1731
hid->urbctrl->transfer_dma = hid->ctrlbuf_dma;
1732
hid->urbctrl->transfer_flags |= (URB_NO_TRANSFER_DMA_MAP | URB_NO_SETUP_DMA_MAP | URB_ASYNC_UNLINK);
1733
1734
return hid;
1735
1736
fail:
1737
1738
if (hid->urbin)
1739
usb_free_urb(hid->urbin);
1740
if (hid->urbout)
1741
usb_free_urb(hid->urbout);
1742
if (hid->urbctrl)
1743
usb_free_urb(hid->urbctrl);
1744
hid_free_buffers(dev, hid);
1745
hid_free_device(hid);
1746
1747
return NULL;
1748
}
1749
1750
static void hid_disconnect(struct usb_interface *intf)
1751
{
1752
struct hid_device *hid = usb_get_intfdata (intf);
1753
1754
if (!hid)
1755
return;
1756
1757
usb_set_intfdata(intf, NULL);
1758
usb_kill_urb(hid->urbin);
1759
usb_kill_urb(hid->urbout);
1760
usb_kill_urb(hid->urbctrl);
1761
1762
if (hid->claimed & HID_CLAIMED_INPUT)
1763
hidinput_disconnect(hid);
1764
if (hid->claimed & HID_CLAIMED_HIDDEV)
1765
hiddev_disconnect(hid);
1766
1767
usb_free_urb(hid->urbin);
1768
usb_free_urb(hid->urbctrl);
1769
if (hid->urbout)
1770
usb_free_urb(hid->urbout);
1771
1772
hid_free_buffers(hid->dev, hid);
1773
hid_free_device(hid);
1774
}
1775
1776
static int hid_probe (struct usb_interface *intf, const struct usb_device_id *id)
1777
{
1778
struct hid_device *hid;
1779
char path[64];
1780
int i;
1781
char *c;
1782
1783
dbg("HID probe called for ifnum %d",
1784
intf->altsetting->desc.bInterfaceNumber);
1785
1786
if (!(hid = usb_hid_configure(intf)))
1787
return -EIO;
1788
1789
hid_init_reports(hid);
1790
hid_dump_device(hid);
1791
1792
if (!hidinput_connect(hid))
1793
hid->claimed |= HID_CLAIMED_INPUT;
1794
if (!hiddev_connect(hid))
1795
hid->claimed |= HID_CLAIMED_HIDDEV;
1796
1797
usb_set_intfdata(intf, hid);
1798
1799
if (!hid->claimed) {
1800
printk ("HID device not claimed by input or hiddev\n");
1801
hid_disconnect(intf);
1802
return -EIO;
1803
}
1804
1805
printk(KERN_INFO);
1806
1807
if (hid->claimed & HID_CLAIMED_INPUT)
1808
printk("input");
1809
if (hid->claimed == (HID_CLAIMED_INPUT | HID_CLAIMED_HIDDEV))
1810
printk(",");
1811
if (hid->claimed & HID_CLAIMED_HIDDEV)
1812
printk("hiddev%d", hid->minor);
1813
1814
c = "Device";
1815
for (i = 0; i < hid->maxcollection; i++) {
1816
if (hid->collection[i].type == HID_COLLECTION_APPLICATION &&
1817
(hid->collection[i].usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
1818
(hid->collection[i].usage & 0xffff) < ARRAY_SIZE(hid_types)) {
1819
c = hid_types[hid->collection[i].usage & 0xffff];
1820
break;
1821
}
1822
}
1823
1824
usb_make_path(interface_to_usbdev(intf), path, 63);
1825
1826
printk(": USB HID v%x.%02x %s [%s] on %s\n",
1827
hid->version >> 8, hid->version & 0xff, c, hid->name, path);
1828
1829
return 0;
1830
}
1831
1832
static struct usb_device_id hid_usb_ids [] = {
1833
{ .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS,
1834
.bInterfaceClass = USB_INTERFACE_CLASS_HID },
1835
{ } /* Terminating entry */
1836
};
1837
1838
MODULE_DEVICE_TABLE (usb, hid_usb_ids);
1839
1840
static struct usb_driver hid_driver = {
1841
.owner = THIS_MODULE,
1842
.name = "usbhid",
1843
.probe = hid_probe,
1844
.disconnect = hid_disconnect,
1845
.id_table = hid_usb_ids,
1846
};
1847
1848
static int __init hid_init(void)
1849
{
1850
int retval;
1851
retval = hiddev_init();
1852
if (retval)
1853
goto hiddev_init_fail;
1854
retval = usb_register(&hid_driver);
1855
if (retval)
1856
goto usb_register_fail;
1857
info(DRIVER_VERSION ":" DRIVER_DESC);
1858
1859
return 0;
1860
usb_register_fail:
1861
hiddev_exit();
1862
hiddev_init_fail:
1863
return retval;
1864
}
1865
1866
static void __exit hid_exit(void)
1867
{
1868
usb_deregister(&hid_driver);
1869
hiddev_exit();
1870
}
1871
1872
module_init(hid_init);
1873
module_exit(hid_exit);
1874
1875
MODULE_AUTHOR(DRIVER_AUTHOR);
1876
MODULE_DESCRIPTION(DRIVER_DESC);
1877
MODULE_LICENSE(DRIVER_LICENSE);
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Version: 2.0.1