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32#include <linux/module.h>
33#include <linux/slab.h>
34#include <linux/init.h>
35#include <linux/kernel.h>
36#include <linux/sched.h>
37#include <linux/list.h>
38#include <linux/mm.h>
39#include <linux/smp_lock.h>
40#include <linux/spinlock.h>
41#include <asm/unaligned.h>
42#include <linux/input.h>
43
44#undef DEBUG
45#undef DEBUG_DATA
46
47#include <linux/usb.h>
48
49#include "hid.h"
50#include <linux/hiddev.h>
51
52
53
54
55
56#define DRIVER_VERSION "v1.8.1"
57#define DRIVER_AUTHOR "Andreas Gal, Vojtech Pavlik <vojtech@suse.cz>"
58#define DRIVER_DESC "USB HID support drivers"
59
60static char *hid_types[] = {"Device", "Pointer", "Mouse", "Device", "Joystick",
61 "Gamepad", "Keyboard", "Keypad", "Multi-Axis Controller"};
62
63
64
65
66
67static struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
68{
69 struct hid_report_enum *report_enum = device->report_enum + type;
70 struct hid_report *report;
71
72 if (report_enum->report_id_hash[id])
73 return report_enum->report_id_hash[id];
74
75 if (!(report = kmalloc(sizeof(struct hid_report), GFP_KERNEL)))
76 return NULL;
77 memset(report, 0, sizeof(struct hid_report));
78
79 if (id != 0) report_enum->numbered = 1;
80
81 report->id = id;
82 report->type = type;
83 report->size = 0;
84 report->device = device;
85 report_enum->report_id_hash[id] = report;
86
87 list_add_tail(&report->list, &report_enum->report_list);
88
89 return report;
90}
91
92
93
94
95
96static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values)
97{
98 struct hid_field *field;
99
100 if (report->maxfield == HID_MAX_FIELDS) {
101 dbg("too many fields in report");
102 return NULL;
103 }
104
105 if (!(field = kmalloc(sizeof(struct hid_field) + usages * sizeof(struct hid_usage)
106 + values * sizeof(unsigned), GFP_KERNEL))) return NULL;
107
108 memset(field, 0, sizeof(struct hid_field) + usages * sizeof(struct hid_usage)
109 + values * sizeof(unsigned));
110
111 report->field[report->maxfield] = field;
112 field->usage = (struct hid_usage *)(field + 1);
113 field->value = (unsigned *)(field->usage + usages);
114 field->report = report;
115 field->index = report->maxfield++;
116
117 return field;
118}
119
120
121
122
123
124static int open_collection(struct hid_parser *parser, unsigned type)
125{
126 struct hid_collection *collection;
127 unsigned usage;
128
129 usage = parser->local.usage[0];
130
131 if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) {
132 dbg("collection stack overflow");
133 return -1;
134 }
135
136 if (parser->device->maxcollection == parser->device->collection_size) {
137 collection = kmalloc(sizeof(struct hid_collection) *
138 parser->device->collection_size * 2,
139 GFP_KERNEL);
140 if (collection == NULL) {
141 dbg("failed to reallocate collection array");
142 return -1;
143 }
144 memcpy(collection, parser->device->collection,
145 sizeof(struct hid_collection) *
146 parser->device->collection_size);
147 memset(collection + parser->device->collection_size, 0,
148 sizeof(struct hid_collection) *
149 parser->device->collection_size);
150 kfree(parser->device->collection);
151 parser->device->collection = collection;
152 parser->device->collection_size *= 2;
153 }
154
155 parser->collection_stack[parser->collection_stack_ptr++] =
156 parser->device->maxcollection;
157
158 collection = parser->device->collection +
159 parser->device->maxcollection++;
160
161 collection->type = type;
162 collection->usage = usage;
163 collection->level = parser->collection_stack_ptr - 1;
164
165 if (type == HID_COLLECTION_APPLICATION)
166 parser->device->maxapplication++;
167
168 return 0;
169}
170
171
172
173
174
175static int close_collection(struct hid_parser *parser)
176{
177 if (!parser->collection_stack_ptr) {
178 dbg("collection stack underflow");
179 return -1;
180 }
181 parser->collection_stack_ptr--;
182 return 0;
183}
184
185
186
187
188
189
190static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type)
191{
192 int n;
193 for (n = parser->collection_stack_ptr - 1; n >= 0; n--)
194 if (parser->device->collection[parser->collection_stack[n]].type == type)
195 return parser->device->collection[parser->collection_stack[n]].usage;
196
197 return 0;
198}
199
200
201
202
203
204static int hid_add_usage(struct hid_parser *parser, unsigned usage)
205{
206 if (parser->local.usage_index >= HID_MAX_USAGES) {
207 dbg("usage index exceeded");
208 return -1;
209 }
210 parser->local.usage[parser->local.usage_index] = usage;
211 parser->local.collection_index[parser->local.usage_index] =
212 parser->collection_stack_ptr ?
213 parser->collection_stack[parser->collection_stack_ptr - 1] : 0;
214 parser->local.usage_index++;
215
216 return 0;
217}
218
219
220
221
222
223static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags)
224{
225 struct hid_report *report;
226 struct hid_field *field;
227 int usages;
228 unsigned offset;
229 int i;
230
231 if (!(report = hid_register_report(parser->device, report_type, parser->global.report_id))) {
232 dbg("hid_register_report failed");
233 return -1;
234 }
235
236 if (parser->global.logical_maximum < parser->global.logical_minimum) {
237 dbg("logical range invalid %d %d", parser->global.logical_minimum, parser->global.logical_maximum);
238 return -1;
239 }
240
241 usages = parser->local.usage_index;
242
243 offset = report->size;
244 report->size += parser->global.report_size * parser->global.report_count;
245
246 if (usages < parser->global.report_count)
247 usages = parser->global.report_count;
248
249 if (usages == 0)
250 return 0;
251
252 if ((field = hid_register_field(report, usages, parser->global.report_count)) == NULL)
253 return 0;
254
255 field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
256 field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
257 field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
258
259 for (i = 0; i < usages; i++) {
260 int j = i;
261
262 if (i >= parser->local.usage_index)
263 j = parser->local.usage_index - 1;
264 field->usage[i].hid = parser->local.usage[j];
265 field->usage[i].collection_index =
266 parser->local.collection_index[j];
267 }
268
269 field->maxusage = usages;
270 field->flags = flags;
271 field->report_offset = offset;
272 field->report_type = report_type;
273 field->report_size = parser->global.report_size;
274 field->report_count = parser->global.report_count;
275 field->logical_minimum = parser->global.logical_minimum;
276 field->logical_maximum = parser->global.logical_maximum;
277 field->physical_minimum = parser->global.physical_minimum;
278 field->physical_maximum = parser->global.physical_maximum;
279 field->unit_exponent = parser->global.unit_exponent;
280 field->unit = parser->global.unit;
281
282 return 0;
283}
284
285
286
287
288
289static __inline__ __u32 item_udata(struct hid_item *item)
290{
291 switch (item->size) {
292 case 1: return item->data.u8;
293 case 2: return item->data.u16;
294 case 4: return item->data.u32;
295 }
296 return 0;
297}
298
299static __inline__ __s32 item_sdata(struct hid_item *item)
300{
301 switch (item->size) {
302 case 1: return item->data.s8;
303 case 2: return item->data.s16;
304 case 4: return item->data.s32;
305 }
306 return 0;
307}
308
309
310
311
312
313static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
314{
315 switch (item->tag) {
316
317 case HID_GLOBAL_ITEM_TAG_PUSH:
318
319 if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
320 dbg("global enviroment stack overflow");
321 return -1;
322 }
323
324 memcpy(parser->global_stack + parser->global_stack_ptr++,
325 &parser->global, sizeof(struct hid_global));
326 return 0;
327
328 case HID_GLOBAL_ITEM_TAG_POP:
329
330 if (!parser->global_stack_ptr) {
331 dbg("global enviroment stack underflow");
332 return -1;
333 }
334
335 memcpy(&parser->global, parser->global_stack + --parser->global_stack_ptr,
336 sizeof(struct hid_global));
337 return 0;
338
339 case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
340 parser->global.usage_page = item_udata(item);
341 return 0;
342
343 case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
344 parser->global.logical_minimum = item_sdata(item);
345 return 0;
346
347 case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
348 if (parser->global.logical_minimum < 0)
349 parser->global.logical_maximum = item_sdata(item);
350 else
351 parser->global.logical_maximum = item_udata(item);
352 return 0;
353
354 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
355 parser->global.physical_minimum = item_sdata(item);
356 return 0;
357
358 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
359 if (parser->global.physical_minimum < 0)
360 parser->global.physical_maximum = item_sdata(item);
361 else
362 parser->global.physical_maximum = item_udata(item);
363 return 0;
364
365 case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
366 parser->global.unit_exponent = item_udata(item);
367 return 0;
368
369 case HID_GLOBAL_ITEM_TAG_UNIT:
370 parser->global.unit = item_udata(item);
371 return 0;
372
373 case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
374 if ((parser->global.report_size = item_udata(item)) > 32) {
375 dbg("invalid report_size %d", parser->global.report_size);
376 return -1;
377 }
378 return 0;
379
380 case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
381 if ((parser->global.report_count = item_udata(item)) > HID_MAX_USAGES) {
382 dbg("invalid report_count %d", parser->global.report_count);
383 return -1;
384 }
385 return 0;
386
387 case HID_GLOBAL_ITEM_TAG_REPORT_ID:
388 if ((parser->global.report_id = item_udata(item)) == 0) {
389 dbg("report_id 0 is invalid");
390 return -1;
391 }
392 return 0;
393
394 default:
395 dbg("unknown global tag 0x%x", item->tag);
396 return -1;
397 }
398}
399
400
401
402
403
404static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
405{
406 __u32 data;
407 unsigned n;
408
409 if (item->size == 0) {
410 dbg("item data expected for local item");
411 return -1;
412 }
413
414 data = item_udata(item);
415
416 switch (item->tag) {
417
418 case HID_LOCAL_ITEM_TAG_DELIMITER:
419
420 if (data) {
421
422
423
424
425
426
427 if (parser->local.delimiter_depth != 0) {
428 dbg("nested delimiters");
429 return -1;
430 }
431 parser->local.delimiter_depth++;
432 parser->local.delimiter_branch++;
433 } else {
434 if (parser->local.delimiter_depth < 1) {
435 dbg("bogus close delimiter");
436 return -1;
437 }
438 parser->local.delimiter_depth--;
439 }
440 return 1;
441
442 case HID_LOCAL_ITEM_TAG_USAGE:
443
444 if (parser->local.delimiter_branch > 1) {
445 dbg("alternative usage ignored");
446 return 0;
447 }
448
449 if (item->size <= 2)
450 data = (parser->global.usage_page << 16) + data;
451
452 return hid_add_usage(parser, data);
453
454 case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
455
456 if (parser->local.delimiter_branch > 1) {
457 dbg("alternative usage ignored");
458 return 0;
459 }
460
461 if (item->size <= 2)
462 data = (parser->global.usage_page << 16) + data;
463
464 parser->local.usage_minimum = data;
465 return 0;
466
467 case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
468
469 if (parser->local.delimiter_branch > 1) {
470 dbg("alternative usage ignored");
471 return 0;
472 }
473
474 if (item->size <= 2)
475 data = (parser->global.usage_page << 16) + data;
476
477 for (n = parser->local.usage_minimum; n <= data; n++)
478 if (hid_add_usage(parser, n)) {
479 dbg("hid_add_usage failed\n");
480 return -1;
481 }
482 return 0;
483
484 default:
485
486 dbg("unknown local item tag 0x%x", item->tag);
487 return 0;
488 }
489 return 0;
490}
491
492
493
494
495
496static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
497{
498 __u32 data;
499 int ret;
500
501 data = item_udata(item);
502
503 switch (item->tag) {
504 case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
505 ret = open_collection(parser, data & 0xff);
506 break;
507 case HID_MAIN_ITEM_TAG_END_COLLECTION:
508 ret = close_collection(parser);
509 break;
510 case HID_MAIN_ITEM_TAG_INPUT:
511 ret = hid_add_field(parser, HID_INPUT_REPORT, data);
512 break;
513 case HID_MAIN_ITEM_TAG_OUTPUT:
514 ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
515 break;
516 case HID_MAIN_ITEM_TAG_FEATURE:
517 ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
518 break;
519 default:
520 dbg("unknown main item tag 0x%x", item->tag);
521 ret = 0;
522 }
523
524 memset(&parser->local, 0, sizeof(parser->local));
525
526 return ret;
527}
528
529
530
531
532
533static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
534{
535 dbg("reserved item type, tag 0x%x", item->tag);
536 return 0;
537}
538
539
540
541
542
543
544
545static void hid_free_report(struct hid_report *report)
546{
547 unsigned n;
548
549 for (n = 0; n < report->maxfield; n++)
550 kfree(report->field[n]);
551 if (report->data)
552 kfree(report->data);
553 kfree(report);
554}
555
556
557
558
559
560static void hid_free_device(struct hid_device *device)
561{
562 unsigned i,j;
563
564 for (i = 0; i < HID_REPORT_TYPES; i++) {
565 struct hid_report_enum *report_enum = device->report_enum + i;
566
567 for (j = 0; j < 256; j++) {
568 struct hid_report *report = report_enum->report_id_hash[j];
569 if (report) hid_free_report(report);
570 }
571 }
572
573 if (device->rdesc) kfree(device->rdesc);
574 if (device->collection) kfree(device->collection);
575}
576
577
578
579
580
581
582static __u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
583{
584 if ((end - start) > 0) {
585
586 __u8 b = *start++;
587 item->type = (b >> 2) & 3;
588 item->tag = (b >> 4) & 15;
589
590 if (item->tag == HID_ITEM_TAG_LONG) {
591
592 item->format = HID_ITEM_FORMAT_LONG;
593
594 if ((end - start) >= 2) {
595
596 item->size = *start++;
597 item->tag = *start++;
598
599 if ((end - start) >= item->size) {
600 item->data.longdata = start;
601 start += item->size;
602 return start;
603 }
604 }
605 } else {
606
607 item->format = HID_ITEM_FORMAT_SHORT;
608 item->size = b & 3;
609 switch (item->size) {
610
611 case 0:
612 return start;
613
614 case 1:
615 if ((end - start) >= 1) {
616 item->data.u8 = *start++;
617 return start;
618 }
619 break;
620
621 case 2:
622 if ((end - start) >= 2) {
623 item->data.u16 = le16_to_cpu(get_unaligned((__u16*)start));
624 start = (__u8 *)((__u16 *)start + 1);
625 return start;
626 }
627
628 case 3:
629 item->size++;
630 if ((end - start) >= 4) {
631 item->data.u32 = le32_to_cpu(get_unaligned((__u32*)start));
632 start = (__u8 *)((__u32 *)start + 1);
633 return start;
634 }
635 }
636 }
637 }
638 return NULL;
639}
640
641
642
643
644
645
646static struct hid_device *hid_parse_report(__u8 *start, unsigned size)
647{
648 struct hid_device *device;
649 struct hid_parser *parser;
650 struct hid_item item;
651 __u8 *end;
652 unsigned i;
653 static int (*dispatch_type[])(struct hid_parser *parser,
654 struct hid_item *item) = {
655 hid_parser_main,
656 hid_parser_global,
657 hid_parser_local,
658 hid_parser_reserved
659 };
660
661 if (!(device = kmalloc(sizeof(struct hid_device), GFP_KERNEL)))
662 return NULL;
663 memset(device, 0, sizeof(struct hid_device));
664
665 if (!(device->collection = kmalloc(sizeof(struct hid_collection) *
666 HID_DEFAULT_NUM_COLLECTIONS,
667 GFP_KERNEL))) {
668 kfree(device);
669 return NULL;
670 }
671 memset(device->collection, 0, sizeof(struct hid_collection) *
672 HID_DEFAULT_NUM_COLLECTIONS);
673 device->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
674
675 for (i = 0; i < HID_REPORT_TYPES; i++)
676 INIT_LIST_HEAD(&device->report_enum[i].report_list);
677
678 if (!(device->rdesc = (__u8 *)kmalloc(size, GFP_KERNEL))) {
679 kfree(device->collection);
680 kfree(device);
681 return NULL;
682 }
683 memcpy(device->rdesc, start, size);
684 device->rsize = size;
685
686 if (!(parser = kmalloc(sizeof(struct hid_parser), GFP_KERNEL))) {
687 kfree(device->rdesc);
688 kfree(device->collection);
689 kfree(device);
690 return NULL;
691 }
692 memset(parser, 0, sizeof(struct hid_parser));
693 parser->device = device;
694
695 end = start + size;
696 while ((start = fetch_item(start, end, &item)) != 0) {
697 if (item.format != HID_ITEM_FORMAT_SHORT) {
698 dbg("unexpected long global item");
699 hid_free_device(device);
700 kfree(parser);
701 return NULL;
702 }
703 if (dispatch_type[item.type](parser, &item)) {
704 dbg("item %u %u %u %u parsing failed\n",
705 item.format, (unsigned)item.size, (unsigned)item.type, (unsigned)item.tag);
706 hid_free_device(device);
707 kfree(parser);
708 return NULL;
709 }
710
711 if (start == end) {
712 if (parser->collection_stack_ptr) {
713 dbg("unbalanced collection at end of report description");
714 hid_free_device(device);
715 kfree(parser);
716 return NULL;
717 }
718 if (parser->local.delimiter_depth) {
719 dbg("unbalanced delimiter at end of report description");
720 hid_free_device(device);
721 kfree(parser);
722 return NULL;
723 }
724 kfree(parser);
725 return device;
726 }
727 }
728
729 dbg("item fetching failed at offset %d\n", (int)(end - start));
730 hid_free_device(device);
731 kfree(parser);
732 return NULL;
733}
734
735
736
737
738
739
740
741static __inline__ __s32 snto32(__u32 value, unsigned n)
742{
743 switch (n) {
744 case 8: return ((__s8)value);
745 case 16: return ((__s16)value);
746 case 32: return ((__s32)value);
747 }
748 return value & (1 << (n - 1)) ? value | (-1 << n) : value;
749}
750
751
752
753
754
755static __inline__ __u32 s32ton(__s32 value, unsigned n)
756{
757 __s32 a = value >> (n - 1);
758 if (a && a != -1) return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
759 return value & ((1 << n) - 1);
760}
761
762
763
764
765
766static __inline__ __u32 extract(__u8 *report, unsigned offset, unsigned n)
767{
768 report += (offset >> 5) << 2; offset &= 31;
769 return (le64_to_cpu(get_unaligned((__u64*)report)) >> offset) & ((1 << n) - 1);
770}
771
772static __inline__ void implement(__u8 *report, unsigned offset, unsigned n, __u32 value)
773{
774 report += (offset >> 5) << 2; offset &= 31;
775 put_unaligned((get_unaligned((__u64*)report)
776 & cpu_to_le64(~((((__u64) 1 << n) - 1) << offset)))
777 | cpu_to_le64((__u64)value << offset), (__u64*)report);
778}
779
780
781
782
783
784static __inline__ int search(__s32 *array, __s32 value, unsigned n)
785{
786 while (n--) if (*array++ == value) return 0;
787 return -1;
788}
789
790static void hid_process_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
791{
792 hid_dump_input(usage, value);
793 if (hid->claimed & HID_CLAIMED_INPUT)
794 hidinput_hid_event(hid, field, usage, value);
795 if (hid->claimed & HID_CLAIMED_HIDDEV)
796 hiddev_hid_event(hid, field, usage, value);
797}
798
799
800
801
802
803
804
805
806static void hid_input_field(struct hid_device *hid, struct hid_field *field, __u8 *data)
807{
808 unsigned n;
809 unsigned count = field->report_count;
810 unsigned offset = field->report_offset;
811 unsigned size = field->report_size;
812 __s32 min = field->logical_minimum;
813 __s32 max = field->logical_maximum;
814 __s32 value[count];
815
816 for (n = 0; n < count; n++) {
817
818 value[n] = min < 0 ? snto32(extract(data, offset + n * size, size), size) :
819 extract(data, offset + n * size, size);
820
821 if (!(field->flags & HID_MAIN_ITEM_VARIABLE)
822 && value[n] >= min && value[n] <= max
823 && field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
824 return;
825 }
826
827 for (n = 0; n < count; n++) {
828
829 if (HID_MAIN_ITEM_VARIABLE & field->flags) {
830
831 if (field->flags & HID_MAIN_ITEM_RELATIVE) {
832 if (!value[n]) continue;
833 } else {
834 if (value[n] == field->value[n]) continue;
835 }
836 hid_process_event(hid, field, &field->usage[n], value[n]);
837 continue;
838 }
839
840 if (field->value[n] >= min && field->value[n] <= max
841 && field->usage[field->value[n] - min].hid
842 && search(value, field->value[n], count))
843 hid_process_event(hid, field, &field->usage[field->value[n] - min], 0);
844
845 if (value[n] >= min && value[n] <= max
846 && field->usage[value[n] - min].hid
847 && search(field->value, value[n], count))
848 hid_process_event(hid, field, &field->usage[value[n] - min], 1);
849 }
850
851 memcpy(field->value, value, count * sizeof(__s32));
852}
853
854static int hid_input_report(int type, u8 *data, int len, struct hid_device *hid)
855{
856 struct hid_report_enum *report_enum = hid->report_enum + type;
857 struct hid_report *report;
858 int n, size;
859
860 if (!len) {
861 dbg("empty report");
862 return -1;
863 }
864
865#ifdef DEBUG_DATA
866 printk(KERN_DEBUG __FILE__ ": report (size %u) (%snumbered)\n", len, report_enum->numbered ? "" : "un");
867#endif
868
869 n = 0;
870 if (report_enum->numbered) {
871 n = *data++;
872 len--;
873 }
874
875 if (!(report = report_enum->report_id_hash[n])) {
876 dbg("undefined report_id %d received", n);
877#ifdef DEBUG
878 printk(KERN_DEBUG __FILE__ ": report (size %u) = ", len);
879 for (n = 0; n < len; n++)
880 printk(" %02x", data[n]);
881 printk("\n");
882#endif
883
884 return -1;
885 }
886
887 if (hid->claimed & HID_CLAIMED_HIDDEV)
888 hiddev_report_event(hid, report);
889
890 size = ((report->size - 1) >> 3) + 1;
891
892 if (len < size) {
893
894 if (size <= 8) {
895 dbg("report %d is too short, (%d < %d)", report->id, len, size);
896 return -1;
897 }
898
899
900
901
902
903
904
905
906 if (!report->data)
907 if (!(report->data = kmalloc(size, GFP_ATOMIC))) {
908 dbg("couldn't allocate report buffer");
909 return -1;
910 }
911
912 if (report->idx + len > size) {
913 dbg("report data buffer overflow");
914 report->idx = 0;
915 return -1;
916 }
917
918 memcpy(report->data + report->idx, data, len);
919 report->idx += len;
920
921 if (report->idx < size)
922 return 0;
923
924 data = report->data;
925 }
926
927 for (n = 0; n < report->maxfield; n++)
928 hid_input_field(hid, report->field[n], data);
929
930 report->idx = 0;
931 return 0;
932}
933
934
935
936
937
938static void hid_irq(struct urb *urb)
939{
940 if (urb->status) {
941 dbg("nonzero status in irq %d", urb->status);
942 return;
943 }
944
945 hid_input_report(HID_INPUT_REPORT, urb->transfer_buffer, urb->actual_length, urb->context);
946}
947
948
949
950
951
952void hid_read_report(struct hid_device *hid, struct hid_report *report)
953{
954 int len = ((report->size - 1) >> 3) + 1 + hid->report_enum[report->type].numbered;
955 u8 data[len];
956 int read;
957
958 if (hid->quirks & HID_QUIRK_NOGET)
959 return;
960
961 if ((read = usb_get_report(hid->dev, hid->ifnum, report->type + 1, report->id, data, len)) != len) {
962 dbg("reading report type %d id %d failed len %d read %d", report->type + 1, report->id, len, read);
963 return;
964 }
965
966 hid_input_report(report->type, data, len, hid);
967}
968
969
970
971
972
973static void hid_output_field(struct hid_field *field, __u8 *data)
974{
975 unsigned count = field->report_count;
976 unsigned offset = field->report_offset;
977 unsigned size = field->report_size;
978 unsigned n;
979
980 for (n = 0; n < count; n++) {
981 if (field->logical_minimum < 0)
982 implement(data, offset + n * size, size, s32ton(field->value[n], size));
983 else
984 implement(data, offset + n * size, size, field->value[n]);
985 }
986}
987
988
989
990
991
992void hid_output_report(struct hid_report *report, __u8 *data)
993{
994 unsigned n;
995 for (n = 0; n < report->maxfield; n++)
996 hid_output_field(report->field[n], data);
997}
998
999
1000
1001
1002
1003
1004
1005int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
1006{
1007 unsigned size = field->report_size;
1008
1009 hid_dump_input(field->usage + offset, value);
1010
1011 if (offset >= field->report_count) {
1012 dbg("offset exceeds report_count");
1013 return -1;
1014 }
1015 if (field->logical_minimum < 0) {
1016 if (value != snto32(s32ton(value, size), size)) {
1017 dbg("value %d is out of range", value);
1018 return -1;
1019 }
1020 }
1021 if ( (value > field->logical_maximum)
1022 || (value < field->logical_minimum)) {
1023 dbg("value %d is invalid", value);
1024 return -1;
1025 }
1026 field->value[offset] = value;
1027 return 0;
1028}
1029
1030int hid_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
1031{
1032 struct hid_report_enum *report_enum = hid->report_enum + HID_OUTPUT_REPORT;
1033 struct list_head *list = report_enum->report_list.next;
1034 int i, j;
1035
1036 while (list != &report_enum->report_list) {
1037 struct hid_report *report = (struct hid_report *) list;
1038 list = list->next;
1039 for (i = 0; i < report->maxfield; i++) {
1040 *field = report->field[i];
1041 for (j = 0; j < (*field)->maxusage; j++)
1042 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
1043 return j;
1044 }
1045 }
1046 return -1;
1047}
1048
1049static int hid_submit_out(struct hid_device *hid)
1050{
1051 hid->urbout.transfer_buffer_length = le16_to_cpup(&hid->out[hid->outtail].dr.wLength);
1052 hid->urbout.transfer_buffer = hid->out[hid->outtail].buffer;
1053 hid->urbout.setup_packet = (void *) &(hid->out[hid->outtail].dr);
1054 hid->urbout.dev = hid->dev;
1055
1056 if (usb_submit_urb(&hid->urbout)) {
1057 err("usb_submit_urb(out) failed");
1058 return -1;
1059 }
1060
1061 return 0;
1062}
1063
1064static void hid_ctrl(struct urb *urb)
1065{
1066 struct hid_device *hid = urb->context;
1067
1068 if (urb->status)
1069 warn("ctrl urb status %d received", urb->status);
1070
1071 hid->outtail = (hid->outtail + 1) & (HID_CONTROL_FIFO_SIZE - 1);
1072
1073 if (hid->outhead != hid->outtail)
1074 hid_submit_out(hid);
1075}
1076
1077void hid_write_report(struct hid_device *hid, struct hid_report *report)
1078{
1079 if (hid->report_enum[report->type].numbered) {
1080 hid->out[hid->outhead].buffer[0] = report->id;
1081 hid_output_report(report, hid->out[hid->outhead].buffer + 1);
1082 hid->out[hid->outhead].dr.wLength = cpu_to_le16(((report->size + 7) >> 3) + 1);
1083 } else {
1084 hid_output_report(report, hid->out[hid->outhead].buffer);
1085 hid->out[hid->outhead].dr.wLength = cpu_to_le16((report->size + 7) >> 3);
1086 }
1087
1088 hid->out[hid->outhead].dr.wValue = cpu_to_le16(((report->type + 1) << 8) | report->id);
1089
1090 hid->outhead = (hid->outhead + 1) & (HID_CONTROL_FIFO_SIZE - 1);
1091
1092 if (hid->outhead == hid->outtail)
1093 hid->outtail = (hid->outtail + 1) & (HID_CONTROL_FIFO_SIZE - 1);
1094
1095 if (hid->urbout.status != -EINPROGRESS)
1096 hid_submit_out(hid);
1097}
1098
1099int hid_open(struct hid_device *hid)
1100{
1101 if (hid->open++)
1102 return 0;
1103
1104 hid->urb.dev = hid->dev;
1105
1106 if (usb_submit_urb(&hid->urb))
1107 return -EIO;
1108
1109 return 0;
1110}
1111
1112void hid_close(struct hid_device *hid)
1113{
1114 if (!--hid->open)
1115 usb_unlink_urb(&hid->urb);
1116}
1117
1118
1119
1120
1121void hid_init_reports(struct hid_device *hid)
1122{
1123 int i;
1124 struct hid_report *report;
1125 struct hid_report_enum *report_enum;
1126 struct list_head *list;
1127
1128 for (i = 0; i < HID_REPORT_TYPES; i++) {
1129 if (i == HID_FEATURE_REPORT || i == HID_INPUT_REPORT) {
1130 report_enum = hid->report_enum + i;
1131 list = report_enum->report_list.next;
1132 while (list != &report_enum->report_list) {
1133 report = (struct hid_report *) list;
1134 hid_read_report(hid, report);
1135 usb_set_idle(hid->dev, hid->ifnum, 0, report->id);
1136 list = list->next;
1137 }
1138 }
1139 }
1140}
1141
1142#define USB_VENDOR_ID_WACOM 0x056a
1143#define USB_DEVICE_ID_WACOM_PENPARTNER 0x0000
1144#define USB_DEVICE_ID_WACOM_GRAPHIRE 0x0010
1145#define USB_DEVICE_ID_WACOM_INTUOS 0x0020
1146#define USB_DEVICE_ID_WACOM_PL 0x0030
1147#define USB_DEVICE_ID_WACOM_INTUOS2 0x0041
1148
1149#define USB_VENDOR_ID_KBGEAR 0x084e
1150#define USB_DEVICE_ID_KBGEAR_JAMSTUDIO 0x1001
1151
1152#define USB_VENDOR_ID_AIPTEK 0x08ca
1153#define USB_DEVICE_ID_AIPTEK_01 0x0001
1154#define USB_DEVICE_ID_AIPTEK_10 0x0010
1155#define USB_DEVICE_ID_AIPTEK_20 0x0020
1156#define USB_DEVICE_ID_AIPTEK_21 0x0021
1157#define USB_DEVICE_ID_AIPTEK_22 0x0022
1158#define USB_DEVICE_ID_AIPTEK_23 0x0023
1159#define USB_DEVICE_ID_AIPTEK_24 0x0024
1160
1161#define USB_VENDOR_ID_ATEN 0x0557
1162#define USB_DEVICE_ID_ATEN_UC100KM 0x2004
1163#define USB_DEVICE_ID_ATEN_CS124U 0x2202
1164#define USB_DEVICE_ID_ATEN_2PORTKVM 0x2204
1165#define USB_DEVICE_ID_ATEN_4PORTKVM 0x2205
1166
1167#define USB_VENDOR_ID_TOPMAX 0x0663
1168#define USB_DEVICE_ID_TOPMAX_COBRAPAD 0x0103
1169
1170#define USB_VENDOR_ID_HAPP 0x078b
1171#define USB_DEVICE_ID_UGCI_DRIVING 0x0010
1172#define USB_DEVICE_ID_UGCI_FLYING 0x0020
1173#define USB_DEVICE_ID_UGCI_FIGHTING 0x0030
1174
1175#define USB_VENDOR_ID_GRIFFIN 0x077d
1176#define USB_DEVICE_ID_POWERMATE 0x0410
1177#define USB_DEVICE_ID_SOUNDKNOB 0x04AA
1178
1179#define USB_VENDOR_ID_ONTRAK 0x0a07
1180#define USB_DEVICE_ID_ONTRAK_ADU100 0x0064
1181
1182#define USB_VENDOR_ID_TANGTOP 0x0d3d
1183#define USB_DEVICE_ID_TANGTOP_USBPS2 0x0001
1184
1185#define USB_VENDOR_ID_OKI 0x070a
1186#define USB_VENDOR_ID_OKI_MULITI 0x0007
1187
1188#define USB_VENDOR_ID_ESSENTIAL_REALITY 0x0d7f
1189#define USB_DEVICE_ID_ESSENTIAL_REALITY_P5 0x0100
1190
1191#define USB_VENDOR_ID_MGE 0x0463
1192#define USB_DEVICE_ID_MGE_UPS 0xffff
1193#define USB_DEVICE_ID_MGE_UPS1 0x0001
1194
1195#define USB_VENDOR_ID_NEC 0x073e
1196#define USB_DEVICE_ID_NEC_USB_GAME_PAD 0x0301
1197
1198struct hid_blacklist {
1199 __u16 idVendor;
1200 __u16 idProduct;
1201 unsigned quirks;
1202} hid_blacklist[] = {
1203 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PENPARTNER, HID_QUIRK_IGNORE },
1204 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE, HID_QUIRK_IGNORE },
1205 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 1, HID_QUIRK_IGNORE },
1206 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 2, HID_QUIRK_IGNORE },
1207 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS, HID_QUIRK_IGNORE },
1208 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS + 1, HID_QUIRK_IGNORE },
1209 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS + 2, HID_QUIRK_IGNORE },
1210 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS + 3, HID_QUIRK_IGNORE },
1211 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS + 4, HID_QUIRK_IGNORE },
1212 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL, HID_QUIRK_IGNORE },
1213 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 1, HID_QUIRK_IGNORE },
1214 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 2, HID_QUIRK_IGNORE },
1215 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 3, HID_QUIRK_IGNORE },
1216 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 4, HID_QUIRK_IGNORE },
1217 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 5, HID_QUIRK_IGNORE },
1218 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2, HID_QUIRK_IGNORE },
1219 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 1, HID_QUIRK_IGNORE },
1220 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 2, HID_QUIRK_IGNORE },
1221 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 3, HID_QUIRK_IGNORE },
1222 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 4, HID_QUIRK_IGNORE },
1223 { USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO, HID_QUIRK_IGNORE },
1224 { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_UC100KM, HID_QUIRK_NOGET },
1225 { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS124U, HID_QUIRK_NOGET },
1226 { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_2PORTKVM, HID_QUIRK_NOGET },
1227 { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVM, HID_QUIRK_NOGET },
1228 { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01, HID_QUIRK_IGNORE },
1229 { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10, HID_QUIRK_IGNORE },
1230 { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20, HID_QUIRK_IGNORE },
1231 { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21, HID_QUIRK_IGNORE },
1232 { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22, HID_QUIRK_IGNORE },
1233 { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23, HID_QUIRK_IGNORE },
1234 { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24, HID_QUIRK_IGNORE },
1235 { USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE, HID_QUIRK_IGNORE },
1236 { USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB, HID_QUIRK_IGNORE },
1237 { USB_VENDOR_ID_TOPMAX, USB_DEVICE_ID_TOPMAX_COBRAPAD, HID_QUIRK_BADPAD },
1238 { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_DRIVING, HID_QUIRK_BADPAD|HID_QUIRK_MULTI_INPUT },
1239 { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FLYING, HID_QUIRK_BADPAD|HID_QUIRK_MULTI_INPUT },
1240 { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FIGHTING, HID_QUIRK_BADPAD|HID_QUIRK_MULTI_INPUT },
1241 { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100, HID_QUIRK_IGNORE },
1242 { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100, HID_QUIRK_IGNORE },
1243 { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200, HID_QUIRK_IGNORE },
1244 { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300, HID_QUIRK_IGNORE },
1245 { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400, HID_QUIRK_IGNORE },
1246 { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500, HID_QUIRK_IGNORE },
1247 { USB_VENDOR_ID_TANGTOP, USB_DEVICE_ID_TANGTOP_USBPS2, HID_QUIRK_NOGET },
1248 { USB_VENDOR_ID_OKI, USB_VENDOR_ID_OKI_MULITI, HID_QUIRK_NOGET },
1249 { USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5, HID_QUIRK_IGNORE },
1250 { USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS, HID_QUIRK_IGNORE },
1251 { USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1, HID_QUIRK_IGNORE },
1252 { USB_VENDOR_ID_NEC, USB_DEVICE_ID_NEC_USB_GAME_PAD, HID_QUIRK_BADPAD },
1253 { 0, 0 }
1254};
1255
1256static struct hid_device *usb_hid_configure(struct usb_device *dev, int ifnum)
1257{
1258 struct usb_interface_descriptor *interface = dev->actconfig->interface[ifnum].altsetting + 0;
1259 struct hid_descriptor *hdesc;
1260 struct hid_device *hid;
1261 unsigned quirks = 0, rsize = 0;
1262 char *buf;
1263 int n;
1264
1265 for (n = 0; hid_blacklist[n].idVendor; n++)
1266 if ((hid_blacklist[n].idVendor == dev->descriptor.idVendor) &&
1267 (hid_blacklist[n].idProduct == dev->descriptor.idProduct))
1268 quirks = hid_blacklist[n].quirks;
1269
1270 if (quirks & HID_QUIRK_IGNORE)
1271 return NULL;
1272
1273 if (usb_get_extra_descriptor(interface, USB_DT_HID, &hdesc) && ((!interface->bNumEndpoints) ||
1274 usb_get_extra_descriptor(&interface->endpoint[0], USB_DT_HID, &hdesc))) {
1275 dbg("class descriptor not present\n");
1276 return NULL;
1277 }
1278
1279 for (n = 0; n < hdesc->bNumDescriptors; n++)
1280 if (hdesc->desc[n].bDescriptorType == USB_DT_REPORT)
1281 rsize = le16_to_cpu(hdesc->desc[n].wDescriptorLength);
1282
1283 if (!rsize || rsize > HID_MAX_DESCRIPTOR_SIZE) {
1284 dbg("weird size of report descriptor (%u)", rsize);
1285 return NULL;
1286 }
1287
1288 {
1289 __u8 rdesc[rsize];
1290
1291 if ((n = usb_get_class_descriptor(dev, interface->bInterfaceNumber, USB_DT_REPORT, 0, rdesc, rsize)) < 0) {
1292 dbg("reading report descriptor failed");
1293 return NULL;
1294 }
1295
1296#ifdef DEBUG_DATA
1297 printk(KERN_DEBUG __FILE__ ": report descriptor (size %u, read %d) = ", rsize, n);
1298 for (n = 0; n < rsize; n++)
1299 printk(" %02x", (unsigned) rdesc[n]);
1300 printk("\n");
1301#endif
1302
1303 if (!(hid = hid_parse_report(rdesc, rsize))) {
1304 dbg("parsing report descriptor failed");
1305 return NULL;
1306 }
1307 }
1308
1309 hid->quirks = quirks;
1310
1311 for (n = 0; n < interface->bNumEndpoints; n++) {
1312
1313 struct usb_endpoint_descriptor *endpoint = &interface->endpoint[n];
1314 int pipe, maxp;
1315
1316 if ((endpoint->bmAttributes & 3) != 3)
1317 continue;
1318
1319 if (!(endpoint->bEndpointAddress & 0x80))
1320 continue;
1321
1322 pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
1323 maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
1324
1325 FILL_INT_URB(&hid->urb, dev, pipe, hid->buffer, maxp > 32 ? 32 : maxp, hid_irq, hid, endpoint->bInterval);
1326
1327 break;
1328 }
1329
1330 if (n == interface->bNumEndpoints) {
1331 dbg("couldn't find an input interrupt endpoint");
1332 hid_free_device(hid);
1333 return NULL;
1334 }
1335
1336 hid->version = hdesc->bcdHID;
1337 hid->country = hdesc->bCountryCode;
1338 hid->dev = dev;
1339 hid->ifnum = interface->bInterfaceNumber;
1340
1341 for (n = 0; n < HID_CONTROL_FIFO_SIZE; n++) {
1342 hid->out[n].dr.bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE;
1343 hid->out[n].dr.bRequest = USB_REQ_SET_REPORT;
1344 hid->out[n].dr.wIndex = cpu_to_le16(hid->ifnum);
1345 }
1346
1347 hid->name[0] = 0;
1348
1349 if (!(buf = kmalloc(63, GFP_KERNEL)))
1350 return NULL;
1351
1352 if (usb_string(dev, dev->descriptor.iManufacturer, buf, 63) > 0) {
1353 strcat(hid->name, buf);
1354 if (usb_string(dev, dev->descriptor.iProduct, buf, 63) > 0)
1355 sprintf(hid->name, "%s %s", hid->name, buf);
1356 } else
1357 sprintf(hid->name, "%04x:%04x", dev->descriptor.idVendor, dev->descriptor.idProduct);
1358
1359 kfree(buf);
1360
1361 FILL_CONTROL_URB(&hid->urbout, dev, usb_sndctrlpipe(dev, 0),
1362 (void*) &hid->out[0].dr, hid->out[0].buffer, 1, hid_ctrl, hid);
1363
1364
1365
1366
1367
1368
1369#if 0
1370 if (interface->bInterfaceSubClass == 1)
1371 usb_set_protocol(dev, hid->ifnum, 1);
1372#endif
1373
1374 return hid;
1375}
1376
1377static void* hid_probe(struct usb_device *dev, unsigned int ifnum,
1378 const struct usb_device_id *id)
1379{
1380 struct hid_device *hid;
1381 int i;
1382 char *c;
1383
1384 dbg("HID probe called for ifnum %d", ifnum);
1385
1386 if (!(hid = usb_hid_configure(dev, ifnum)))
1387 return NULL;
1388
1389 hid_init_reports(hid);
1390 hid_dump_device(hid);
1391
1392 if (!hidinput_connect(hid))
1393 hid->claimed |= HID_CLAIMED_INPUT;
1394 if (!hiddev_connect(hid))
1395 hid->claimed |= HID_CLAIMED_HIDDEV;
1396 printk(KERN_INFO);
1397
1398 if (hid->claimed & HID_CLAIMED_INPUT)
1399 printk("input");
1400 if (hid->claimed == (HID_CLAIMED_INPUT | HID_CLAIMED_HIDDEV))
1401 printk(",");
1402 if (hid->claimed & HID_CLAIMED_HIDDEV)
1403 printk("hiddev%d", hid->minor);
1404
1405 c = "Device";
1406 for (i = 0; i < hid->maxcollection; i++) {
1407 if (hid->collection[i].type == HID_COLLECTION_APPLICATION &&
1408 (hid->collection[i].usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
1409 (hid->collection[i].usage & 0xffff) < ARRAY_SIZE(hid_types)) {
1410 c = hid_types[hid->collection[i].usage & 0xffff];
1411 break;
1412 }
1413 }
1414
1415 printk(": USB HID v%x.%02x %s [%s] on usb%d:%d.%d\n",
1416 hid->version >> 8, hid->version & 0xff, c, hid->name,
1417 dev->bus->busnum, dev->devnum, ifnum);
1418
1419 return hid;
1420}
1421
1422static void hid_disconnect(struct usb_device *dev, void *ptr)
1423{
1424 struct hid_device *hid = ptr;
1425
1426 dbg("cleanup called");
1427 usb_unlink_urb(&hid->urb);
1428 if (hid->claimed & HID_CLAIMED_INPUT)
1429 hidinput_disconnect(hid);
1430 if (hid->claimed & HID_CLAIMED_HIDDEV)
1431 hiddev_disconnect(hid);
1432 hid_free_device(hid);
1433}
1434
1435static struct usb_device_id hid_usb_ids [] = {
1436 { match_flags: USB_DEVICE_ID_MATCH_INT_CLASS,
1437 bInterfaceClass: USB_INTERFACE_CLASS_HID },
1438 { }
1439};
1440
1441MODULE_DEVICE_TABLE (usb, hid_usb_ids);
1442
1443static struct usb_driver hid_driver = {
1444 name: "hid",
1445 probe: hid_probe,
1446 disconnect: hid_disconnect,
1447 id_table: hid_usb_ids,
1448};
1449
1450static int __init hid_init(void)
1451{
1452 hiddev_init();
1453 usb_register(&hid_driver);
1454 info(DRIVER_VERSION " " DRIVER_AUTHOR);
1455 info(DRIVER_DESC);
1456
1457 return 0;
1458}
1459
1460static void __exit hid_exit(void)
1461{
1462 usb_deregister(&hid_driver);
1463 hiddev_exit();
1464}
1465
1466module_init(hid_init);
1467module_exit(hid_exit);
1468
1469MODULE_AUTHOR( DRIVER_AUTHOR );
1470MODULE_DESCRIPTION( DRIVER_DESC );
1471MODULE_LICENSE("GPL");
1472
