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[PATCH] USB: remove usbcore-specific wakeup flags
[deliverable/linux.git] / drivers / usb / input / hid-core.c
CommitLineData
1da177e4
LT		 1/*
2 * USB HID support for Linux
3 *
4 * Copyright (c) 1999 Andreas Gal
bf0964dc
MH		 5 * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
6 * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
1da177e4
LT		 7 */
8
9/*
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the Free
12 * Software Foundation; either version 2 of the License, or (at your option)
13 * any later version.
14 */
15
16#include <linux/module.h>
17#include <linux/slab.h>
18#include <linux/init.h>
19#include <linux/kernel.h>
20#include <linux/sched.h>
21#include <linux/list.h>
22#include <linux/mm.h>
23#include <linux/smp_lock.h>
24#include <linux/spinlock.h>
25#include <asm/unaligned.h>
26#include <asm/byteorder.h>
27#include <linux/input.h>
28#include <linux/wait.h>
29
30#undef DEBUG
31#undef DEBUG_DATA
32
33#include <linux/usb.h>
34
35#include "hid.h"
36#include <linux/hiddev.h>
37
38/*
39 * Version Information
40 */
41
bf0964dc 42#define DRIVER_VERSION "v2.6"
1da177e4
LT		 43#define DRIVER_AUTHOR "Andreas Gal, Vojtech Pavlik"
44#define DRIVER_DESC "USB HID core driver"
45#define DRIVER_LICENSE "GPL"
46
47static char *hid_types[] = {"Device", "Pointer", "Mouse", "Device", "Joystick",
48 "Gamepad", "Keyboard", "Keypad", "Multi-Axis Controller"};
49/*
50 * Module parameters.
51 */
52
53static unsigned int hid_mousepoll_interval;
54module_param_named(mousepoll, hid_mousepoll_interval, uint, 0644);
55MODULE_PARM_DESC(mousepoll, "Polling interval of mice");
56
57/*
58 * Register a new report for a device.
59 */
60
61static struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
62{
63 struct hid_report_enum *report_enum = device->report_enum + type;
64 struct hid_report *report;
65
66 if (report_enum->report_id_hash[id])
67 return report_enum->report_id_hash[id];
68
bbdb7daf 69 if (!(report = kzalloc(sizeof(struct hid_report), GFP_KERNEL)))
1da177e4 70 return NULL;
1da177e4
LT		 71
72 if (id != 0)
73 report_enum->numbered = 1;
74
75 report->id = id;
76 report->type = type;
77 report->size = 0;
78 report->device = device;
79 report_enum->report_id_hash[id] = report;
80
81 list_add_tail(&report->list, &report_enum->report_list);
82
83 return report;
84}
85
86/*
87 * Register a new field for this report.
88 */
89
90static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values)
91{
92 struct hid_field *field;
93
94 if (report->maxfield == HID_MAX_FIELDS) {
95 dbg("too many fields in report");
96 return NULL;
97 }
98
bbdb7daf 99 if (!(field = kzalloc(sizeof(struct hid_field) + usages * sizeof(struct hid_usage)
1da177e4
LT		 100 + values * sizeof(unsigned), GFP_KERNEL))) return NULL;
101
1da177e4
LT		 102 field->index = report->maxfield++;
103 report->field[field->index] = field;
104 field->usage = (struct hid_usage *)(field + 1);
105 field->value = (unsigned *)(field->usage + usages);
106 field->report = report;
107
108 return field;
109}
110
111/*
112 * Open a collection. The type/usage is pushed on the stack.
113 */
114
115static int open_collection(struct hid_parser *parser, unsigned type)
116{
117 struct hid_collection *collection;
118 unsigned usage;
119
120 usage = parser->local.usage[0];
121
122 if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) {
123 dbg("collection stack overflow");
124 return -1;
125 }
126
127 if (parser->device->maxcollection == parser->device->collection_size) {
128 collection = kmalloc(sizeof(struct hid_collection) *
129 parser->device->collection_size * 2, GFP_KERNEL);
130 if (collection == NULL) {
131 dbg("failed to reallocate collection array");
132 return -1;
133 }
134 memcpy(collection, parser->device->collection,
135 sizeof(struct hid_collection) *
136 parser->device->collection_size);
137 memset(collection + parser->device->collection_size, 0,
138 sizeof(struct hid_collection) *
139 parser->device->collection_size);
140 kfree(parser->device->collection);
141 parser->device->collection = collection;
142 parser->device->collection_size *= 2;
143 }
144
145 parser->collection_stack[parser->collection_stack_ptr++] =
146 parser->device->maxcollection;
147
148 collection = parser->device->collection +
149 parser->device->maxcollection++;
150 collection->type = type;
151 collection->usage = usage;
152 collection->level = parser->collection_stack_ptr - 1;
153
154 if (type == HID_COLLECTION_APPLICATION)
155 parser->device->maxapplication++;
156
157 return 0;
158}
159
160/*
161 * Close a collection.
162 */
163
164static int close_collection(struct hid_parser *parser)
165{
166 if (!parser->collection_stack_ptr) {
167 dbg("collection stack underflow");
168 return -1;
169 }
170 parser->collection_stack_ptr--;
171 return 0;
172}
173
174/*
175 * Climb up the stack, search for the specified collection type
176 * and return the usage.
177 */
178
179static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type)
180{
181 int n;
182 for (n = parser->collection_stack_ptr - 1; n >= 0; n--)
183 if (parser->device->collection[parser->collection_stack[n]].type == type)
184 return parser->device->collection[parser->collection_stack[n]].usage;
185 return 0; /* we know nothing about this usage type */
186}
187
188/*
189 * Add a usage to the temporary parser table.
190 */
191
192static int hid_add_usage(struct hid_parser *parser, unsigned usage)
193{
194 if (parser->local.usage_index >= HID_MAX_USAGES) {
195 dbg("usage index exceeded");
196 return -1;
197 }
198 parser->local.usage[parser->local.usage_index] = usage;
199 parser->local.collection_index[parser->local.usage_index] =
200 parser->collection_stack_ptr ?
201 parser->collection_stack[parser->collection_stack_ptr - 1] : 0;
202 parser->local.usage_index++;
203 return 0;
204}
205
206/*
207 * Register a new field for this report.
208 */
209
210static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags)
211{
212 struct hid_report *report;
213 struct hid_field *field;
214 int usages;
215 unsigned offset;
216 int i;
217
218 if (!(report = hid_register_report(parser->device, report_type, parser->global.report_id))) {
219 dbg("hid_register_report failed");
220 return -1;
221 }
222
223 if (parser->global.logical_maximum < parser->global.logical_minimum) {
224 dbg("logical range invalid %d %d", parser->global.logical_minimum, parser->global.logical_maximum);
225 return -1;
226 }
227
228 offset = report->size;
229 report->size += parser->global.report_size * parser->global.report_count;
230
231 if (!parser->local.usage_index) /* Ignore padding fields */
05f091ab 232 return 0;
1da177e4
LT		 233
234 usages = max_t(int, parser->local.usage_index, parser->global.report_count);
235
236 if ((field = hid_register_field(report, usages, parser->global.report_count)) == NULL)
237 return 0;
238
239 field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
240 field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
241 field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
242
243 for (i = 0; i < usages; i++) {
244 int j = i;
245 /* Duplicate the last usage we parsed if we have excess values */
246 if (i >= parser->local.usage_index)
247 j = parser->local.usage_index - 1;
248 field->usage[i].hid = parser->local.usage[j];
249 field->usage[i].collection_index =
250 parser->local.collection_index[j];
251 }
252
253 field->maxusage = usages;
254 field->flags = flags;
255 field->report_offset = offset;
256 field->report_type = report_type;
257 field->report_size = parser->global.report_size;
258 field->report_count = parser->global.report_count;
259 field->logical_minimum = parser->global.logical_minimum;
260 field->logical_maximum = parser->global.logical_maximum;
261 field->physical_minimum = parser->global.physical_minimum;
262 field->physical_maximum = parser->global.physical_maximum;
263 field->unit_exponent = parser->global.unit_exponent;
264 field->unit = parser->global.unit;
265
266 return 0;
267}
268
269/*
270 * Read data value from item.
271 */
272
273static __inline__ __u32 item_udata(struct hid_item *item)
274{
275 switch (item->size) {
276 case 1: return item->data.u8;
277 case 2: return item->data.u16;
278 case 4: return item->data.u32;
279 }
280 return 0;
281}
282
283static __inline__ __s32 item_sdata(struct hid_item *item)
284{
285 switch (item->size) {
286 case 1: return item->data.s8;
287 case 2: return item->data.s16;
288 case 4: return item->data.s32;
289 }
290 return 0;
291}
292
293/*
294 * Process a global item.
295 */
296
297static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
298{
299 switch (item->tag) {
300
301 case HID_GLOBAL_ITEM_TAG_PUSH:
302
303 if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
304 dbg("global enviroment stack overflow");
305 return -1;
306 }
307
308 memcpy(parser->global_stack + parser->global_stack_ptr++,
309 &parser->global, sizeof(struct hid_global));
310 return 0;
311
312 case HID_GLOBAL_ITEM_TAG_POP:
313
314 if (!parser->global_stack_ptr) {
315 dbg("global enviroment stack underflow");
316 return -1;
317 }
318
319 memcpy(&parser->global, parser->global_stack + --parser->global_stack_ptr,
320 sizeof(struct hid_global));
321 return 0;
322
323 case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
324 parser->global.usage_page = item_udata(item);
325 return 0;
326
327 case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
328 parser->global.logical_minimum = item_sdata(item);
329 return 0;
330
331 case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
332 if (parser->global.logical_minimum < 0)
333 parser->global.logical_maximum = item_sdata(item);
334 else
335 parser->global.logical_maximum = item_udata(item);
336 return 0;
337
338 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
339 parser->global.physical_minimum = item_sdata(item);
340 return 0;
341
342 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
343 if (parser->global.physical_minimum < 0)
344 parser->global.physical_maximum = item_sdata(item);
345 else
346 parser->global.physical_maximum = item_udata(item);
347 return 0;
348
349 case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
350 parser->global.unit_exponent = item_sdata(item);
351 return 0;
352
353 case HID_GLOBAL_ITEM_TAG_UNIT:
354 parser->global.unit = item_udata(item);
355 return 0;
356
357 case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
358 if ((parser->global.report_size = item_udata(item)) > 32) {
359 dbg("invalid report_size %d", parser->global.report_size);
360 return -1;
361 }
362 return 0;
363
364 case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
365 if ((parser->global.report_count = item_udata(item)) > HID_MAX_USAGES) {
366 dbg("invalid report_count %d", parser->global.report_count);
367 return -1;
368 }
369 return 0;
370
371 case HID_GLOBAL_ITEM_TAG_REPORT_ID:
372 if ((parser->global.report_id = item_udata(item)) == 0) {
373 dbg("report_id 0 is invalid");
374 return -1;
375 }
376 return 0;
377
378 default:
379 dbg("unknown global tag 0x%x", item->tag);
380 return -1;
381 }
382}
383
384/*
385 * Process a local item.
386 */
387
388static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
389{
390 __u32 data;
391 unsigned n;
392
393 if (item->size == 0) {
394 dbg("item data expected for local item");
395 return -1;
396 }
397
398 data = item_udata(item);
399
400 switch (item->tag) {
401
402 case HID_LOCAL_ITEM_TAG_DELIMITER:
403
404 if (data) {
405 /*
406 * We treat items before the first delimiter
407 * as global to all usage sets (branch 0).
408 * In the moment we process only these global
409 * items and the first delimiter set.
410 */
411 if (parser->local.delimiter_depth != 0) {
412 dbg("nested delimiters");
413 return -1;
414 }
415 parser->local.delimiter_depth++;
416 parser->local.delimiter_branch++;
417 } else {
418 if (parser->local.delimiter_depth < 1) {
419 dbg("bogus close delimiter");
420 return -1;
421 }
422 parser->local.delimiter_depth--;
423 }
424 return 1;
425
426 case HID_LOCAL_ITEM_TAG_USAGE:
427
428 if (parser->local.delimiter_branch > 1) {
429 dbg("alternative usage ignored");
430 return 0;
431 }
432
433 if (item->size <= 2)
434 data = (parser->global.usage_page << 16) + data;
435
436 return hid_add_usage(parser, data);
437
438 case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
439
440 if (parser->local.delimiter_branch > 1) {
441 dbg("alternative usage ignored");
442 return 0;
443 }
444
445 if (item->size <= 2)
446 data = (parser->global.usage_page << 16) + data;
447
448 parser->local.usage_minimum = data;
449 return 0;
450
451 case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
452
453 if (parser->local.delimiter_branch > 1) {
454 dbg("alternative usage ignored");
455 return 0;
456 }
457
458 if (item->size <= 2)
459 data = (parser->global.usage_page << 16) + data;
460
461 for (n = parser->local.usage_minimum; n <= data; n++)
462 if (hid_add_usage(parser, n)) {
463 dbg("hid_add_usage failed\n");
464 return -1;
465 }
466 return 0;
467
468 default:
469
470 dbg("unknown local item tag 0x%x", item->tag);
471 return 0;
472 }
473 return 0;
474}
475
476/*
477 * Process a main item.
478 */
479
480static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
481{
482 __u32 data;
483 int ret;
484
485 data = item_udata(item);
486
487 switch (item->tag) {
488 case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
489 ret = open_collection(parser, data & 0xff);
490 break;
491 case HID_MAIN_ITEM_TAG_END_COLLECTION:
492 ret = close_collection(parser);
493 break;
494 case HID_MAIN_ITEM_TAG_INPUT:
495 ret = hid_add_field(parser, HID_INPUT_REPORT, data);
496 break;
497 case HID_MAIN_ITEM_TAG_OUTPUT:
498 ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
499 break;
500 case HID_MAIN_ITEM_TAG_FEATURE:
501 ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
502 break;
503 default:
504 dbg("unknown main item tag 0x%x", item->tag);
505 ret = 0;
506 }
507
508 memset(&parser->local, 0, sizeof(parser->local)); /* Reset the local parser environment */
509
510 return ret;
511}
512
513/*
514 * Process a reserved item.
515 */
516
517static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
518{
519 dbg("reserved item type, tag 0x%x", item->tag);
520 return 0;
521}
522
523/*
524 * Free a report and all registered fields. The field->usage and
525 * field->value table's are allocated behind the field, so we need
526 * only to free(field) itself.
527 */
528
529static void hid_free_report(struct hid_report *report)
530{
531 unsigned n;
532
533 for (n = 0; n < report->maxfield; n++)
534 kfree(report->field[n]);
535 kfree(report);
536}
537
538/*
539 * Free a device structure, all reports, and all fields.
540 */
541
542static void hid_free_device(struct hid_device *device)
543{
544 unsigned i,j;
545
546 hid_ff_exit(device);
547
548 for (i = 0; i < HID_REPORT_TYPES; i++) {
549 struct hid_report_enum *report_enum = device->report_enum + i;
550
551 for (j = 0; j < 256; j++) {
552 struct hid_report *report = report_enum->report_id_hash[j];
553 if (report)
554 hid_free_report(report);
555 }
556 }
557
1bc3c9e1 558 kfree(device->rdesc);
1da177e4
LT		 559 kfree(device);
560}
561
562/*
563 * Fetch a report description item from the data stream. We support long
564 * items, though they are not used yet.
565 */
566
567static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
568{
569 u8 b;
570
571 if ((end - start) <= 0)
572 return NULL;
573
574 b = *start++;
575
576 item->type = (b >> 2) & 3;
577 item->tag = (b >> 4) & 15;
578
579 if (item->tag == HID_ITEM_TAG_LONG) {
580
581 item->format = HID_ITEM_FORMAT_LONG;
582
583 if ((end - start) < 2)
584 return NULL;
585
586 item->size = *start++;
587 item->tag = *start++;
588
589 if ((end - start) < item->size)
590 return NULL;
591
592 item->data.longdata = start;
593 start += item->size;
594 return start;
595 }
596
597 item->format = HID_ITEM_FORMAT_SHORT;
598 item->size = b & 3;
599
600 switch (item->size) {
601
602 case 0:
603 return start;
604
605 case 1:
606 if ((end - start) < 1)
607 return NULL;
608 item->data.u8 = *start++;
609 return start;
610
611 case 2:
612 if ((end - start) < 2)
613 return NULL;
614 item->data.u16 = le16_to_cpu(get_unaligned((__le16*)start));
615 start = (__u8 *)((__le16 *)start + 1);
616 return start;
617
618 case 3:
619 item->size++;
620 if ((end - start) < 4)
621 return NULL;
622 item->data.u32 = le32_to_cpu(get_unaligned((__le32*)start));
623 start = (__u8 *)((__le32 *)start + 1);
624 return start;
625 }
626
627 return NULL;
628}
629
630/*
631 * Parse a report description into a hid_device structure. Reports are
632 * enumerated, fields are attached to these reports.
633 */
634
635static struct hid_device *hid_parse_report(__u8 *start, unsigned size)
636{
637 struct hid_device *device;
638 struct hid_parser *parser;
639 struct hid_item item;
640 __u8 *end;
641 unsigned i;
642 static int (*dispatch_type[])(struct hid_parser *parser,
643 struct hid_item *item) = {
644 hid_parser_main,
645 hid_parser_global,
646 hid_parser_local,
647 hid_parser_reserved
648 };
649
bbdb7daf 650 if (!(device = kzalloc(sizeof(struct hid_device), GFP_KERNEL)))
1da177e4 651 return NULL;
1da177e4 652
bbdb7daf 653 if (!(device->collection = kzalloc(sizeof(struct hid_collection) *
1da177e4
LT		 654 HID_DEFAULT_NUM_COLLECTIONS, GFP_KERNEL))) {
655 kfree(device);
656 return NULL;
657 }
1da177e4
LT		 658 device->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
659
660 for (i = 0; i < HID_REPORT_TYPES; i++)
661 INIT_LIST_HEAD(&device->report_enum[i].report_list);
662
663 if (!(device->rdesc = (__u8 *)kmalloc(size, GFP_KERNEL))) {
664 kfree(device->collection);
665 kfree(device);
666 return NULL;
667 }
668 memcpy(device->rdesc, start, size);
669 device->rsize = size;
670
bbdb7daf 671 if (!(parser = kzalloc(sizeof(struct hid_parser), GFP_KERNEL))) {
1da177e4
LT		 672 kfree(device->rdesc);
673 kfree(device->collection);
674 kfree(device);
675 return NULL;
676 }
1da177e4
LT		 677 parser->device = device;
678
679 end = start + size;
680 while ((start = fetch_item(start, end, &item)) != NULL) {
681
682 if (item.format != HID_ITEM_FORMAT_SHORT) {
683 dbg("unexpected long global item");
684 kfree(device->collection);
685 hid_free_device(device);
686 kfree(parser);
687 return NULL;
688 }
689
690 if (dispatch_type[item.type](parser, &item)) {
691 dbg("item %u %u %u %u parsing failed\n",
692 item.format, (unsigned)item.size, (unsigned)item.type, (unsigned)item.tag);
693 kfree(device->collection);
694 hid_free_device(device);
695 kfree(parser);
696 return NULL;
697 }
698
699 if (start == end) {
700 if (parser->collection_stack_ptr) {
701 dbg("unbalanced collection at end of report description");
702 kfree(device->collection);
703 hid_free_device(device);
704 kfree(parser);
705 return NULL;
706 }
707 if (parser->local.delimiter_depth) {
708 dbg("unbalanced delimiter at end of report description");
709 kfree(device->collection);
710 hid_free_device(device);
711 kfree(parser);
712 return NULL;
713 }
714 kfree(parser);
715 return device;
716 }
717 }
718
719 dbg("item fetching failed at offset %d\n", (int)(end - start));
720 kfree(device->collection);
721 hid_free_device(device);
722 kfree(parser);
723 return NULL;
724}
725
726/*
727 * Convert a signed n-bit integer to signed 32-bit integer. Common
728 * cases are done through the compiler, the screwed things has to be
729 * done by hand.
730 */
731
732static __inline__ __s32 snto32(__u32 value, unsigned n)
733{
734 switch (n) {
735 case 8: return ((__s8)value);
736 case 16: return ((__s16)value);
737 case 32: return ((__s32)value);
738 }
739 return value & (1 << (n - 1)) ? value | (-1 << n) : value;
740}
741
742/*
743 * Convert a signed 32-bit integer to a signed n-bit integer.
744 */
745
746static __inline__ __u32 s32ton(__s32 value, unsigned n)
747{
748 __s32 a = value >> (n - 1);
749 if (a && a != -1)
750 return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
751 return value & ((1 << n) - 1);
752}
753
754/*
755 * Extract/implement a data field from/to a report.
756 */
757
758static __inline__ __u32 extract(__u8 *report, unsigned offset, unsigned n)
759{
760 report += (offset >> 5) << 2; offset &= 31;
bef3768d 761 return (le64_to_cpu(get_unaligned((__le64*)report)) >> offset) & ((1ULL << n) - 1);
1da177e4
LT		 762}
763
764static __inline__ void implement(__u8 *report, unsigned offset, unsigned n, __u32 value)
765{
766 report += (offset >> 5) << 2; offset &= 31;
767 put_unaligned((get_unaligned((__le64*)report)
768 & cpu_to_le64(~((((__u64) 1 << n) - 1) << offset)))
769 | cpu_to_le64((__u64)value << offset), (__le64*)report);
770}
771
772/*
773 * Search an array for a value.
774 */
775
776static __inline__ int search(__s32 *array, __s32 value, unsigned n)
777{
778 while (n--) {
779 if (*array++ == value)
780 return 0;
781 }
782 return -1;
783}
784
bc5d0482 785static void hid_process_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value, int interrupt, struct pt_regs *regs)
1da177e4
LT		 786{
787 hid_dump_input(usage, value);
788 if (hid->claimed & HID_CLAIMED_INPUT)
789 hidinput_hid_event(hid, field, usage, value, regs);
bc5d0482 790 if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt)
1da177e4
LT		 791 hiddev_hid_event(hid, field, usage, value, regs);
792}
793
794/*
795 * Analyse a received field, and fetch the data from it. The field
796 * content is stored for next report processing (we do differential
797 * reporting to the layer).
798 */
799
bc5d0482 800static void hid_input_field(struct hid_device *hid, struct hid_field *field, __u8 *data, int interrupt, struct pt_regs *regs)
1da177e4
LT		 801{
802 unsigned n;
803 unsigned count = field->report_count;
804 unsigned offset = field->report_offset;
805 unsigned size = field->report_size;
806 __s32 min = field->logical_minimum;
807 __s32 max = field->logical_maximum;
808 __s32 *value;
809
810 if (!(value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC)))
811 return;
812
813 for (n = 0; n < count; n++) {
814
815 value[n] = min < 0 ? snto32(extract(data, offset + n * size, size), size) :
816 extract(data, offset + n * size, size);
817
818 if (!(field->flags & HID_MAIN_ITEM_VARIABLE) /* Ignore report if ErrorRollOver */
819 && value[n] >= min && value[n] <= max
820 && field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
821 goto exit;
822 }
823
824 for (n = 0; n < count; n++) {
825
826 if (HID_MAIN_ITEM_VARIABLE & field->flags) {
bc5d0482 827 hid_process_event(hid, field, &field->usage[n], value[n], interrupt, regs);
1da177e4
LT		 828 continue;
829 }
830
831 if (field->value[n] >= min && field->value[n] <= max
832 && field->usage[field->value[n] - min].hid
833 && search(value, field->value[n], count))
bc5d0482 834 hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt, regs);
1da177e4
LT		 835
836 if (value[n] >= min && value[n] <= max
837 && field->usage[value[n] - min].hid
838 && search(field->value, value[n], count))
bc5d0482 839 hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt, regs);
1da177e4
LT		 840 }
841
842 memcpy(field->value, value, count * sizeof(__s32));
843exit:
844 kfree(value);
845}
846
bc5d0482 847static int hid_input_report(int type, struct urb *urb, int interrupt, struct pt_regs *regs)
1da177e4
LT		 848{
849 struct hid_device *hid = urb->context;
850 struct hid_report_enum *report_enum = hid->report_enum + type;
851 u8 *data = urb->transfer_buffer;
852 int len = urb->actual_length;
853 struct hid_report *report;
854 int n, size;
855
856 if (!len) {
857 dbg("empty report");
858 return -1;
859 }
860
861#ifdef DEBUG_DATA
862 printk(KERN_DEBUG __FILE__ ": report (size %u) (%snumbered)\n", len, report_enum->numbered ? "" : "un");
863#endif
864
865 n = 0; /* Normally report number is 0 */
866 if (report_enum->numbered) { /* Device uses numbered reports, data[0] is report number */
867 n = *data++;
868 len--;
869 }
870
871#ifdef DEBUG_DATA
872 {
873 int i;
874 printk(KERN_DEBUG __FILE__ ": report %d (size %u) = ", n, len);
875 for (i = 0; i < len; i++)
876 printk(" %02x", data[i]);
877 printk("\n");
878 }
879#endif
880
881 if (!(report = report_enum->report_id_hash[n])) {
882 dbg("undefined report_id %d received", n);
883 return -1;
884 }
885
886 size = ((report->size - 1) >> 3) + 1;
887
cd610457 888 if (len < size) {
1da177e4 889 dbg("report %d is too short, (%d < %d)", report->id, len, size);
cd610457
AK		 890 memset(data + len, 0, size - len);
891 }
1da177e4
LT		 892
893 if (hid->claimed & HID_CLAIMED_HIDDEV)
894 hiddev_report_event(hid, report);
895
896 for (n = 0; n < report->maxfield; n++)
bc5d0482 897 hid_input_field(hid, report->field[n], data, interrupt, regs);
1da177e4
LT		 898
899 if (hid->claimed & HID_CLAIMED_INPUT)
900 hidinput_report_event(hid, report);
901
902 return 0;
903}
904
905/*
906 * Input interrupt completion handler.
907 */
908
909static void hid_irq_in(struct urb *urb, struct pt_regs *regs)
910{
911 struct hid_device *hid = urb->context;
912 int status;
913
914 switch (urb->status) {
915 case 0: /* success */
bc5d0482 916 hid_input_report(HID_INPUT_REPORT, urb, 1, regs);
1da177e4
LT		 917 break;
918 case -ECONNRESET: /* unlink */
919 case -ENOENT:
920 case -EPERM:
921 case -ESHUTDOWN: /* unplug */
922 case -EILSEQ: /* unplug timeout on uhci */
923 return;
924 case -ETIMEDOUT: /* NAK */
925 break;
926 default: /* error */
927 warn("input irq status %d received", urb->status);
928 }
929
930 status = usb_submit_urb(urb, SLAB_ATOMIC);
931 if (status)
932 err("can't resubmit intr, %s-%s/input%d, status %d",
933 hid->dev->bus->bus_name, hid->dev->devpath,
934 hid->ifnum, status);
935}
936
937/*
938 * Output the field into the report.
939 */
940
941static void hid_output_field(struct hid_field *field, __u8 *data)
942{
943 unsigned count = field->report_count;
944 unsigned offset = field->report_offset;
945 unsigned size = field->report_size;
946 unsigned n;
947
948 for (n = 0; n < count; n++) {
949 if (field->logical_minimum < 0) /* signed values */
950 implement(data, offset + n * size, size, s32ton(field->value[n], size));
951 else /* unsigned values */
952 implement(data, offset + n * size, size, field->value[n]);
953 }
954}
955
956/*
957 * Create a report.
958 */
959
960static void hid_output_report(struct hid_report *report, __u8 *data)
961{
962 unsigned n;
963
964 if (report->id > 0)
965 *data++ = report->id;
966
967 for (n = 0; n < report->maxfield; n++)
968 hid_output_field(report->field[n], data);
969}
970
971/*
972 * Set a field value. The report this field belongs to has to be
973 * created and transferred to the device, to set this value in the
974 * device.
975 */
976
977int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
978{
979 unsigned size = field->report_size;
980
981 hid_dump_input(field->usage + offset, value);
982
983 if (offset >= field->report_count) {
984 dbg("offset (%d) exceeds report_count (%d)", offset, field->report_count);
985 hid_dump_field(field, 8);
986 return -1;
987 }
988 if (field->logical_minimum < 0) {
989 if (value != snto32(s32ton(value, size), size)) {
990 dbg("value %d is out of range", value);
991 return -1;
992 }
993 }
994 field->value[offset] = value;
995 return 0;
996}
997
998/*
999 * Find a report field with a specified HID usage.
1000 */
1001
1002struct hid_field *hid_find_field_by_usage(struct hid_device *hid, __u32 wanted_usage, int type)
1003{
1004 struct hid_report *report;
1005 int i;
1006
1007 list_for_each_entry(report, &hid->report_enum[type].report_list, list)
1008 for (i = 0; i < report->maxfield; i++)
1009 if (report->field[i]->logical == wanted_usage)
1010 return report->field[i];
1011 return NULL;
1012}
1013
1014static int hid_submit_out(struct hid_device *hid)
1015{
1016 struct hid_report *report;
1017
1018 report = hid->out[hid->outtail];
1019
1020 hid_output_report(report, hid->outbuf);
1021 hid->urbout->transfer_buffer_length = ((report->size - 1) >> 3) + 1 + (report->id > 0);
1022 hid->urbout->dev = hid->dev;
1023
1024 dbg("submitting out urb");
1025
1026 if (usb_submit_urb(hid->urbout, GFP_ATOMIC)) {
1027 err("usb_submit_urb(out) failed");
1028 return -1;
1029 }
1030
1031 return 0;
1032}
1033
1034static int hid_submit_ctrl(struct hid_device *hid)
1035{
1036 struct hid_report *report;
1037 unsigned char dir;
1038 int len;
1039
1040 report = hid->ctrl[hid->ctrltail].report;
1041 dir = hid->ctrl[hid->ctrltail].dir;
1042
1043 len = ((report->size - 1) >> 3) + 1 + (report->id > 0);
1044 if (dir == USB_DIR_OUT) {
1045 hid_output_report(report, hid->ctrlbuf);
1046 hid->urbctrl->pipe = usb_sndctrlpipe(hid->dev, 0);
1047 hid->urbctrl->transfer_buffer_length = len;
1048 } else {
1049 int maxpacket, padlen;
1050
1051 hid->urbctrl->pipe = usb_rcvctrlpipe(hid->dev, 0);
1052 maxpacket = usb_maxpacket(hid->dev, hid->urbctrl->pipe, 0);
1053 if (maxpacket > 0) {
1054 padlen = (len + maxpacket - 1) / maxpacket;
1055 padlen *= maxpacket;
bf0964dc
MH		 1056 if (padlen > hid->bufsize)
1057 padlen = hid->bufsize;
1da177e4
LT		 1058 } else
1059 padlen = 0;
1060 hid->urbctrl->transfer_buffer_length = padlen;
1061 }
1062 hid->urbctrl->dev = hid->dev;
1063
1064 hid->cr->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE | dir;
1065 hid->cr->bRequest = (dir == USB_DIR_OUT) ? HID_REQ_SET_REPORT : HID_REQ_GET_REPORT;
1066 hid->cr->wValue = cpu_to_le16(((report->type + 1) << 8) | report->id);
1067 hid->cr->wIndex = cpu_to_le16(hid->ifnum);
1068 hid->cr->wLength = cpu_to_le16(len);
1069
1070 dbg("submitting ctrl urb: %s wValue=0x%04x wIndex=0x%04x wLength=%u",
1071 hid->cr->bRequest == HID_REQ_SET_REPORT ? "Set_Report" : "Get_Report",
1072 hid->cr->wValue, hid->cr->wIndex, hid->cr->wLength);
1073
1074 if (usb_submit_urb(hid->urbctrl, GFP_ATOMIC)) {
1075 err("usb_submit_urb(ctrl) failed");
1076 return -1;
1077 }
1078
1079 return 0;
1080}
1081
1082/*
1083 * Output interrupt completion handler.
1084 */
1085
1086static void hid_irq_out(struct urb *urb, struct pt_regs *regs)
1087{
1088 struct hid_device *hid = urb->context;
1089 unsigned long flags;
1090 int unplug = 0;
1091
1092 switch (urb->status) {
1093 case 0: /* success */
c4786ca8 1094 break;
1da177e4
LT		 1095 case -ESHUTDOWN: /* unplug */
1096 case -EILSEQ: /* unplug timeout on uhci */
1097 unplug = 1;
1098 case -ECONNRESET: /* unlink */
1099 case -ENOENT:
1100 break;
1101 default: /* error */
1102 warn("output irq status %d received", urb->status);
1103 }
1104
1105 spin_lock_irqsave(&hid->outlock, flags);
1106
1107 if (unplug)
1108 hid->outtail = hid->outhead;
1109 else
1110 hid->outtail = (hid->outtail + 1) & (HID_OUTPUT_FIFO_SIZE - 1);
1111
1112 if (hid->outhead != hid->outtail) {
1113 if (hid_submit_out(hid)) {
1114 clear_bit(HID_OUT_RUNNING, &hid->iofl);;
1115 wake_up(&hid->wait);
1116 }
1117 spin_unlock_irqrestore(&hid->outlock, flags);
1118 return;
1119 }
1120
1121 clear_bit(HID_OUT_RUNNING, &hid->iofl);
1122 spin_unlock_irqrestore(&hid->outlock, flags);
1123 wake_up(&hid->wait);
1124}
1125
1126/*
1127 * Control pipe completion handler.
1128 */
1129
1130static void hid_ctrl(struct urb *urb, struct pt_regs *regs)
1131{
1132 struct hid_device *hid = urb->context;
1133 unsigned long flags;
1134 int unplug = 0;
1135
1136 spin_lock_irqsave(&hid->ctrllock, flags);
1137
1138 switch (urb->status) {
1139 case 0: /* success */
1140 if (hid->ctrl[hid->ctrltail].dir == USB_DIR_IN)
bc5d0482 1141 hid_input_report(hid->ctrl[hid->ctrltail].report->type, urb, 0, regs);
c4786ca8 1142 break;
1da177e4
LT		 1143 case -ESHUTDOWN: /* unplug */
1144 case -EILSEQ: /* unplug timectrl on uhci */
1145 unplug = 1;
1146 case -ECONNRESET: /* unlink */
1147 case -ENOENT:
1148 case -EPIPE: /* report not available */
1149 break;
1150 default: /* error */
1151 warn("ctrl urb status %d received", urb->status);
1152 }
1153
1154 if (unplug)
1155 hid->ctrltail = hid->ctrlhead;
1156 else
1157 hid->ctrltail = (hid->ctrltail + 1) & (HID_CONTROL_FIFO_SIZE - 1);
1158
1159 if (hid->ctrlhead != hid->ctrltail) {
1160 if (hid_submit_ctrl(hid)) {
1161 clear_bit(HID_CTRL_RUNNING, &hid->iofl);
1162 wake_up(&hid->wait);
1163 }
1164 spin_unlock_irqrestore(&hid->ctrllock, flags);
1165 return;
1166 }
1167
1168 clear_bit(HID_CTRL_RUNNING, &hid->iofl);
1169 spin_unlock_irqrestore(&hid->ctrllock, flags);
1170 wake_up(&hid->wait);
1171}
1172
1173void hid_submit_report(struct hid_device *hid, struct hid_report *report, unsigned char dir)
1174{
1175 int head;
1176 unsigned long flags;
1177
1178 if ((hid->quirks & HID_QUIRK_NOGET) && dir == USB_DIR_IN)
1179 return;
1180
1181 if (hid->urbout && dir == USB_DIR_OUT && report->type == HID_OUTPUT_REPORT) {
1182
1183 spin_lock_irqsave(&hid->outlock, flags);
1184
1185 if ((head = (hid->outhead + 1) & (HID_OUTPUT_FIFO_SIZE - 1)) == hid->outtail) {
1186 spin_unlock_irqrestore(&hid->outlock, flags);
1187 warn("output queue full");
1188 return;
1189 }
1190
1191 hid->out[hid->outhead] = report;
1192 hid->outhead = head;
1193
1194 if (!test_and_set_bit(HID_OUT_RUNNING, &hid->iofl))
1195 if (hid_submit_out(hid))
1196 clear_bit(HID_OUT_RUNNING, &hid->iofl);
1197
1198 spin_unlock_irqrestore(&hid->outlock, flags);
1199 return;
1200 }
1201
1202 spin_lock_irqsave(&hid->ctrllock, flags);
1203
1204 if ((head = (hid->ctrlhead + 1) & (HID_CONTROL_FIFO_SIZE - 1)) == hid->ctrltail) {
1205 spin_unlock_irqrestore(&hid->ctrllock, flags);
1206 warn("control queue full");
1207 return;
1208 }
1209
1210 hid->ctrl[hid->ctrlhead].report = report;
1211 hid->ctrl[hid->ctrlhead].dir = dir;
1212 hid->ctrlhead = head;
1213
1214 if (!test_and_set_bit(HID_CTRL_RUNNING, &hid->iofl))
1215 if (hid_submit_ctrl(hid))
1216 clear_bit(HID_CTRL_RUNNING, &hid->iofl);
1217
1218 spin_unlock_irqrestore(&hid->ctrllock, flags);
1219}
1220
1221int hid_wait_io(struct hid_device *hid)
1222{
1223 if (!wait_event_timeout(hid->wait, (!test_bit(HID_CTRL_RUNNING, &hid->iofl) &&
1224 !test_bit(HID_OUT_RUNNING, &hid->iofl)),
1225 10*HZ)) {
1226 dbg("timeout waiting for ctrl or out queue to clear");
1227 return -1;
1228 }
1229
1230 return 0;
1231}
1232
854561b0
VP		 1233static int hid_set_idle(struct usb_device *dev, int ifnum, int report, int idle)
1234{
71387bd7 1235 return usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
854561b0
VP		 1236 HID_REQ_SET_IDLE, USB_TYPE_CLASS | USB_RECIP_INTERFACE, (idle << 8) | report,
1237 ifnum, NULL, 0, USB_CTRL_SET_TIMEOUT);
1238}
1239
1da177e4
LT		 1240static int hid_get_class_descriptor(struct usb_device *dev, int ifnum,
1241 unsigned char type, void *buf, int size)
1242{
1243 int result, retries = 4;
1244
1245 memset(buf,0,size); // Make sure we parse really received data
1246
1247 do {
1248 result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
1249 USB_REQ_GET_DESCRIPTOR, USB_RECIP_INTERFACE | USB_DIR_IN,
1250 (type << 8), ifnum, buf, size, USB_CTRL_GET_TIMEOUT);
1251 retries--;
1252 } while (result < size && retries);
1253 return result;
1254}
1255
1256int hid_open(struct hid_device *hid)
1257{
1258 if (hid->open++)
1259 return 0;
1260
1261 hid->urbin->dev = hid->dev;
1262
1263 if (usb_submit_urb(hid->urbin, GFP_KERNEL))
1264 return -EIO;
1265
1266 return 0;
1267}
1268
1269void hid_close(struct hid_device *hid)
1270{
1271 if (!--hid->open)
1272 usb_kill_urb(hid->urbin);
1273}
1274
1275/*
1276 * Initialize all reports
1277 */
1278
1279void hid_init_reports(struct hid_device *hid)
1280{
1281 struct hid_report *report;
1282 int err, ret;
1283
bf0964dc 1284 list_for_each_entry(report, &hid->report_enum[HID_INPUT_REPORT].report_list, list)
1da177e4 1285 hid_submit_report(hid, report, USB_DIR_IN);
1da177e4
LT		 1286
1287 list_for_each_entry(report, &hid->report_enum[HID_FEATURE_REPORT].report_list, list)
1288 hid_submit_report(hid, report, USB_DIR_IN);
1289
1290 err = 0;
1291 ret = hid_wait_io(hid);
1292 while (ret) {
1293 err |= ret;
1294 if (test_bit(HID_CTRL_RUNNING, &hid->iofl))
1295 usb_kill_urb(hid->urbctrl);
1296 if (test_bit(HID_OUT_RUNNING, &hid->iofl))
1297 usb_kill_urb(hid->urbout);
1298 ret = hid_wait_io(hid);
1299 }
1300
1301 if (err)
de289fdf 1302 warn("timeout initializing reports");
1da177e4
LT		 1303}
1304
1305#define USB_VENDOR_ID_WACOM 0x056a
1306#define USB_DEVICE_ID_WACOM_PENPARTNER 0x0000
1307#define USB_DEVICE_ID_WACOM_GRAPHIRE 0x0010
1308#define USB_DEVICE_ID_WACOM_INTUOS 0x0020
1309#define USB_DEVICE_ID_WACOM_PL 0x0030
1310#define USB_DEVICE_ID_WACOM_INTUOS2 0x0040
1311#define USB_DEVICE_ID_WACOM_VOLITO 0x0060
1312#define USB_DEVICE_ID_WACOM_PTU 0x0003
5ce0482e
PC		 1313#define USB_DEVICE_ID_WACOM_INTUOS3 0x00B0
1314#define USB_DEVICE_ID_WACOM_CINTIQ 0x003F
116d75bd 1315#define USB_DEVICE_ID_WACOM_DTF 0x00C0
1da177e4 1316
53880546
SV		 1317#define USB_VENDOR_ID_ACECAD 0x0460
1318#define USB_DEVICE_ID_ACECAD_FLAIR 0x0004
1319#define USB_DEVICE_ID_ACECAD_302 0x0008
1320
1da177e4
LT		 1321#define USB_VENDOR_ID_KBGEAR 0x084e
1322#define USB_DEVICE_ID_KBGEAR_JAMSTUDIO 0x1001
1323
1324#define USB_VENDOR_ID_AIPTEK 0x08ca
1325#define USB_DEVICE_ID_AIPTEK_01 0x0001
1326#define USB_DEVICE_ID_AIPTEK_10 0x0010
1327#define USB_DEVICE_ID_AIPTEK_20 0x0020
1328#define USB_DEVICE_ID_AIPTEK_21 0x0021
1329#define USB_DEVICE_ID_AIPTEK_22 0x0022
1330#define USB_DEVICE_ID_AIPTEK_23 0x0023
1331#define USB_DEVICE_ID_AIPTEK_24 0x0024
1332
1333#define USB_VENDOR_ID_GRIFFIN 0x077d
1334#define USB_DEVICE_ID_POWERMATE 0x0410
1335#define USB_DEVICE_ID_SOUNDKNOB 0x04AA
1336
1337#define USB_VENDOR_ID_ATEN 0x0557
1338#define USB_DEVICE_ID_ATEN_UC100KM 0x2004
1339#define USB_DEVICE_ID_ATEN_CS124U 0x2202
1340#define USB_DEVICE_ID_ATEN_2PORTKVM 0x2204
1341#define USB_DEVICE_ID_ATEN_4PORTKVM 0x2205
1342#define USB_DEVICE_ID_ATEN_4PORTKVMC 0x2208
1343
1344#define USB_VENDOR_ID_TOPMAX 0x0663
1345#define USB_DEVICE_ID_TOPMAX_COBRAPAD 0x0103
1346
1347#define USB_VENDOR_ID_HAPP 0x078b
1348#define USB_DEVICE_ID_UGCI_DRIVING 0x0010
1349#define USB_DEVICE_ID_UGCI_FLYING 0x0020
1350#define USB_DEVICE_ID_UGCI_FIGHTING 0x0030
1351
1352#define USB_VENDOR_ID_MGE 0x0463
1353#define USB_DEVICE_ID_MGE_UPS 0xffff
1354#define USB_DEVICE_ID_MGE_UPS1 0x0001
1355
1356#define USB_VENDOR_ID_ONTRAK 0x0a07
1357#define USB_DEVICE_ID_ONTRAK_ADU100 0x0064
1358
1359#define USB_VENDOR_ID_TANGTOP 0x0d3d
1360#define USB_DEVICE_ID_TANGTOP_USBPS2 0x0001
1361
1362#define USB_VENDOR_ID_ESSENTIAL_REALITY 0x0d7f
1363#define USB_DEVICE_ID_ESSENTIAL_REALITY_P5 0x0100
1364
1365#define USB_VENDOR_ID_A4TECH 0x09da
1366#define USB_DEVICE_ID_A4TECH_WCP32PU 0x0006
1367
61cdecd9 1368#define USB_VENDOR_ID_AASHIMA 0x06d6
6345fdfd 1369#define USB_DEVICE_ID_AASHIMA_GAMEPAD 0x0025
61cdecd9 1370#define USB_DEVICE_ID_AASHIMA_PREDATOR 0x0026
6345fdfd 1371
1da177e4
LT		 1372#define USB_VENDOR_ID_CYPRESS 0x04b4
1373#define USB_DEVICE_ID_CYPRESS_MOUSE 0x0001
1374#define USB_DEVICE_ID_CYPRESS_HIDCOM 0x5500
7d25258f 1375#define USB_DEVICE_ID_CYPRESS_ULTRAMOUSE 0x7417
1da177e4
LT		 1376
1377#define USB_VENDOR_ID_BERKSHIRE 0x0c98
1378#define USB_DEVICE_ID_BERKSHIRE_PCWD 0x1140
1379
1380#define USB_VENDOR_ID_ALPS 0x0433
1381#define USB_DEVICE_ID_IBM_GAMEPAD 0x1101
1382
1383#define USB_VENDOR_ID_SAITEK 0x06a3
1384#define USB_DEVICE_ID_SAITEK_RUMBLEPAD 0xff17
1385
1386#define USB_VENDOR_ID_NEC 0x073e
1387#define USB_DEVICE_ID_NEC_USB_GAME_PAD 0x0301
1388
1389#define USB_VENDOR_ID_CHIC 0x05fe
1390#define USB_DEVICE_ID_CHIC_GAMEPAD 0x0014
1391
1392#define USB_VENDOR_ID_GLAB 0x06c2
1393#define USB_DEVICE_ID_4_PHIDGETSERVO_30 0x0038
1394#define USB_DEVICE_ID_1_PHIDGETSERVO_30 0x0039
1395#define USB_DEVICE_ID_8_8_8_IF_KIT 0x0045
1396#define USB_DEVICE_ID_0_0_4_IF_KIT 0x0040
1397#define USB_DEVICE_ID_0_8_8_IF_KIT 0x0053
1398
1399#define USB_VENDOR_ID_WISEGROUP 0x0925
1400#define USB_DEVICE_ID_1_PHIDGETSERVO_20 0x8101
1401#define USB_DEVICE_ID_4_PHIDGETSERVO_20 0x8104
e65335ef 1402#define USB_DEVICE_ID_DUAL_USB_JOYPAD 0x8866
1da177e4
LT		 1403
1404#define USB_VENDOR_ID_CODEMERCS 0x07c0
1405#define USB_DEVICE_ID_CODEMERCS_IOW40 0x1500
1406#define USB_DEVICE_ID_CODEMERCS_IOW24 0x1501
1407#define USB_DEVICE_ID_CODEMERCS_IOW48 0x1502
1408#define USB_DEVICE_ID_CODEMERCS_IOW28 0x1503
1409
1410#define USB_VENDOR_ID_DELORME 0x1163
1411#define USB_DEVICE_ID_DELORME_EARTHMATE 0x0100
dc1d1003 1412#define USB_DEVICE_ID_DELORME_EM_LT20 0x0200
1da177e4
LT		 1413
1414#define USB_VENDOR_ID_MCC 0x09db
1415#define USB_DEVICE_ID_MCC_PMD1024LS 0x0076
1416#define USB_DEVICE_ID_MCC_PMD1208LS 0x007a
1417
1418#define USB_VENDOR_ID_CHICONY 0x04f2
1419#define USB_DEVICE_ID_CHICONY_USBHUB_KB 0x0100
1420
1421#define USB_VENDOR_ID_BTC 0x046e
1422#define USB_DEVICE_ID_BTC_KEYBOARD 0x5303
1423
4871d3be
GKH		 1424#define USB_VENDOR_ID_VERNIER 0x08f7
1425#define USB_DEVICE_ID_VERNIER_LABPRO 0x0001
1426#define USB_DEVICE_ID_VERNIER_GOTEMP 0x0002
1427#define USB_DEVICE_ID_VERNIER_SKIP 0x0003
1428#define USB_DEVICE_ID_VERNIER_CYCLOPS 0x0004
1429
8fd6db47 1430#define USB_VENDOR_ID_LD 0x0f11
ba3e66e9
MH		 1431#define USB_DEVICE_ID_LD_CASSY 0x1000
1432#define USB_DEVICE_ID_LD_POCKETCASSY 0x1010
1433#define USB_DEVICE_ID_LD_MOBILECASSY 0x1020
1434#define USB_DEVICE_ID_LD_JWM 0x1080
1435#define USB_DEVICE_ID_LD_DMMP 0x1081
1436#define USB_DEVICE_ID_LD_UMIP 0x1090
1437#define USB_DEVICE_ID_LD_XRAY1 0x1100
1438#define USB_DEVICE_ID_LD_XRAY2 0x1101
1439#define USB_DEVICE_ID_LD_VIDEOCOM 0x1200
1440#define USB_DEVICE_ID_LD_COM3LAB 0x2000
1441#define USB_DEVICE_ID_LD_TELEPORT 0x2010
1442#define USB_DEVICE_ID_LD_NETWORKANALYSER 0x2020
1443#define USB_DEVICE_ID_LD_POWERCONTROL 0x2030
1444#define USB_DEVICE_ID_LD_MACHINETEST 0x2040
8fd6db47 1445
c58de6d9
VP		 1446#define USB_VENDOR_ID_APPLE 0x05ac
1447#define USB_DEVICE_ID_APPLE_POWERMOUSE 0x0304
1da177e4 1448
940824b0
VP		 1449#define USB_VENDOR_ID_CHERRY 0x046a
1450#define USB_DEVICE_ID_CHERRY_CYMOTION 0x0023
1451
dc41baf8
VP		 1452#define USB_VENDOR_ID_HP 0x03f0
1453#define USB_DEVICE_ID_HP_USBHUB_KB 0x020c
1454
1da177e4
LT		 1455/*
1456 * Alphabetically sorted blacklist by quirk type.
1457 */
1458
4c4c9432 1459static const struct hid_blacklist {
1da177e4
LT		 1460 __u16 idVendor;
1461 __u16 idProduct;
1462 unsigned quirks;
1463} hid_blacklist[] = {
1464
1465 { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01, HID_QUIRK_IGNORE },
1466 { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10, HID_QUIRK_IGNORE },
1467 { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20, HID_QUIRK_IGNORE },
1468 { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21, HID_QUIRK_IGNORE },
1469 { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22, HID_QUIRK_IGNORE },
1470 { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23, HID_QUIRK_IGNORE },
1471 { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24, HID_QUIRK_IGNORE },
1472 { USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD, HID_QUIRK_IGNORE },
1473 { USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW40, HID_QUIRK_IGNORE },
1474 { USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW24, HID_QUIRK_IGNORE },
1475 { USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW48, HID_QUIRK_IGNORE },
1476 { USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW28, HID_QUIRK_IGNORE },
1477 { USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM, HID_QUIRK_IGNORE },
7d25258f 1478 { USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE, HID_QUIRK_IGNORE },
1da177e4 1479 { USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE, HID_QUIRK_IGNORE },
dc1d1003 1480 { USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20, HID_QUIRK_IGNORE },
1da177e4
LT		 1481 { USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5, HID_QUIRK_IGNORE },
1482 { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30, HID_QUIRK_IGNORE },
1483 { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30, HID_QUIRK_IGNORE },
1484 { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT, HID_QUIRK_IGNORE },
1485 { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT, HID_QUIRK_IGNORE },
1486 { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT, HID_QUIRK_IGNORE },
1487 { USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE, HID_QUIRK_IGNORE },
1488 { USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB, HID_QUIRK_IGNORE },
1489 { USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO, HID_QUIRK_IGNORE },
ba3e66e9
MH		 1490 { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY, HID_QUIRK_IGNORE },
1491 { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY, HID_QUIRK_IGNORE },
1492 { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY, HID_QUIRK_IGNORE },
1493 { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM, HID_QUIRK_IGNORE },
1494 { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP, HID_QUIRK_IGNORE },
1495 { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP, HID_QUIRK_IGNORE },
1496 { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY1, HID_QUIRK_IGNORE },
1497 { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2, HID_QUIRK_IGNORE },
1498 { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM, HID_QUIRK_IGNORE },
1499 { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB, HID_QUIRK_IGNORE },
1500 { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT, HID_QUIRK_IGNORE },
1501 { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER, HID_QUIRK_IGNORE },
1502 { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL, HID_QUIRK_IGNORE },
1503 { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST, HID_QUIRK_IGNORE },
1da177e4
LT		 1504 { USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS, HID_QUIRK_IGNORE },
1505 { USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS, HID_QUIRK_IGNORE },
1506 { USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS, HID_QUIRK_IGNORE },
1507 { USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1, HID_QUIRK_IGNORE },
1508 { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100, HID_QUIRK_IGNORE },
1509 { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100, HID_QUIRK_IGNORE },
1510 { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200, HID_QUIRK_IGNORE },
1511 { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300, HID_QUIRK_IGNORE },
1512 { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400, HID_QUIRK_IGNORE },
1513 { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500, HID_QUIRK_IGNORE },
4871d3be
GKH		 1514 { USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO, HID_QUIRK_IGNORE },
1515 { USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP, HID_QUIRK_IGNORE },
1516 { USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP, HID_QUIRK_IGNORE },
1517 { USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS, HID_QUIRK_IGNORE },
1da177e4
LT		 1518 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PENPARTNER, HID_QUIRK_IGNORE },
1519 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE, HID_QUIRK_IGNORE },
1520 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 1, HID_QUIRK_IGNORE },
1521 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 2, HID_QUIRK_IGNORE },
1522 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 3, HID_QUIRK_IGNORE },
1523 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 4, HID_QUIRK_IGNORE },
1524 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS, HID_QUIRK_IGNORE },
1525 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS + 1, HID_QUIRK_IGNORE },
1526 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS + 2, HID_QUIRK_IGNORE },
1527 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS + 3, HID_QUIRK_IGNORE },
1528 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS + 4, HID_QUIRK_IGNORE },
1529 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL, HID_QUIRK_IGNORE },
1530 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 1, HID_QUIRK_IGNORE },
1531 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 2, HID_QUIRK_IGNORE },
1532 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 3, HID_QUIRK_IGNORE },
1533 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 4, HID_QUIRK_IGNORE },
1534 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 5, HID_QUIRK_IGNORE },
116d75bd
PC		 1535 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 7, HID_QUIRK_IGNORE },
1536 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 8, HID_QUIRK_IGNORE },
1537 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 9, HID_QUIRK_IGNORE },
1da177e4
LT		 1538 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 1, HID_QUIRK_IGNORE },
1539 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 2, HID_QUIRK_IGNORE },
1540 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 3, HID_QUIRK_IGNORE },
1541 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 4, HID_QUIRK_IGNORE },
1542 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 5, HID_QUIRK_IGNORE },
1543 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 7, HID_QUIRK_IGNORE },
1544 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_VOLITO, HID_QUIRK_IGNORE },
116d75bd
PC		 1545 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_VOLITO + 1, HID_QUIRK_IGNORE },
1546 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_VOLITO + 2, HID_QUIRK_IGNORE },
1547 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_VOLITO + 3, HID_QUIRK_IGNORE },
1548 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_VOLITO + 4, HID_QUIRK_IGNORE },
1549 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 5, HID_QUIRK_IGNORE },
1550 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 6, HID_QUIRK_IGNORE },
1da177e4 1551 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PTU, HID_QUIRK_IGNORE },
5ce0482e
PC		 1552 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS3, HID_QUIRK_IGNORE },
1553 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS3 + 1, HID_QUIRK_IGNORE },
1554 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS3 + 2, HID_QUIRK_IGNORE },
116d75bd 1555 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS3 + 5, HID_QUIRK_IGNORE },
5ce0482e 1556 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_CINTIQ, HID_QUIRK_IGNORE },
116d75bd 1557 { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_DTF, HID_QUIRK_IGNORE },
1da177e4
LT		 1558 { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20, HID_QUIRK_IGNORE },
1559 { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20, HID_QUIRK_IGNORE },
1560
53880546
SV		 1561 { USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR, HID_QUIRK_IGNORE },
1562 { USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302, HID_QUIRK_IGNORE },
1563
1da177e4
LT		 1564 { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_UC100KM, HID_QUIRK_NOGET },
1565 { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS124U, HID_QUIRK_NOGET },
1566 { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_2PORTKVM, HID_QUIRK_NOGET },
1567 { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVM, HID_QUIRK_NOGET },
1568 { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVMC, HID_QUIRK_NOGET },
1569 { USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_KEYBOARD, HID_QUIRK_NOGET},
1570 { USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_USBHUB_KB, HID_QUIRK_NOGET},
dc41baf8 1571 { USB_VENDOR_ID_HP, USB_DEVICE_ID_HP_USBHUB_KB, HID_QUIRK_NOGET },
1da177e4 1572 { USB_VENDOR_ID_TANGTOP, USB_DEVICE_ID_TANGTOP_USBPS2, HID_QUIRK_NOGET },
e65335ef 1573 { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
1da177e4 1574
c58de6d9 1575 { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_POWERMOUSE, HID_QUIRK_2WHEEL_POWERMOUSE },
1da177e4
LT		 1576 { USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU, HID_QUIRK_2WHEEL_MOUSE_HACK_7 },
1577 { USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE, HID_QUIRK_2WHEEL_MOUSE_HACK_5 },
1578
6345fdfd 1579 { USB_VENDOR_ID_AASHIMA, USB_DEVICE_ID_AASHIMA_GAMEPAD, HID_QUIRK_BADPAD },
61cdecd9 1580 { USB_VENDOR_ID_AASHIMA, USB_DEVICE_ID_AASHIMA_PREDATOR, HID_QUIRK_BADPAD },
1da177e4
LT		 1581 { USB_VENDOR_ID_ALPS, USB_DEVICE_ID_IBM_GAMEPAD, HID_QUIRK_BADPAD },
1582 { USB_VENDOR_ID_CHIC, USB_DEVICE_ID_CHIC_GAMEPAD, HID_QUIRK_BADPAD },
1583 { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_DRIVING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
1584 { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FLYING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
1585 { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FIGHTING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
1586 { USB_VENDOR_ID_NEC, USB_DEVICE_ID_NEC_USB_GAME_PAD, HID_QUIRK_BADPAD },
1587 { USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RUMBLEPAD, HID_QUIRK_BADPAD },
1588 { USB_VENDOR_ID_TOPMAX, USB_DEVICE_ID_TOPMAX_COBRAPAD, HID_QUIRK_BADPAD },
1589
940824b0
VP		 1590 { USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION, HID_QUIRK_CYMOTION },
1591
eab9edd2
MH		 1592 { USB_VENDOR_ID_APPLE, 0x020E, HID_QUIRK_POWERBOOK_HAS_FN },
1593 { USB_VENDOR_ID_APPLE, 0x020F, HID_QUIRK_POWERBOOK_HAS_FN },
1594 { USB_VENDOR_ID_APPLE, 0x0214, HID_QUIRK_POWERBOOK_HAS_FN },
1595 { USB_VENDOR_ID_APPLE, 0x0215, HID_QUIRK_POWERBOOK_HAS_FN },
1596 { USB_VENDOR_ID_APPLE, 0x0216, HID_QUIRK_POWERBOOK_HAS_FN },
1597 { USB_VENDOR_ID_APPLE, 0x030A, HID_QUIRK_POWERBOOK_HAS_FN },
1598 { USB_VENDOR_ID_APPLE, 0x030B, HID_QUIRK_POWERBOOK_HAS_FN },
1599
1da177e4
LT		 1600 { 0, 0 }
1601};
1602
bf0964dc
MH		 1603/*
1604 * Traverse the supplied list of reports and find the longest
1605 */
1606static void hid_find_max_report(struct hid_device *hid, unsigned int type, int *max)
1607{
1608 struct hid_report *report;
1609 int size;
1610
1611 list_for_each_entry(report, &hid->report_enum[type].report_list, list) {
1612 size = ((report->size - 1) >> 3) + 1;
1613 if (type == HID_INPUT_REPORT && hid->report_enum[type].numbered)
1614 size++;
1615 if (*max < size)
1616 *max = size;
1617 }
1618}
1619
1da177e4
LT		 1620static int hid_alloc_buffers(struct usb_device *dev, struct hid_device *hid)
1621{
bf0964dc 1622 if (!(hid->inbuf = usb_buffer_alloc(dev, hid->bufsize, SLAB_ATOMIC, &hid->inbuf_dma)))
1da177e4 1623 return -1;
bf0964dc 1624 if (!(hid->outbuf = usb_buffer_alloc(dev, hid->bufsize, SLAB_ATOMIC, &hid->outbuf_dma)))
1da177e4
LT		 1625 return -1;
1626 if (!(hid->cr = usb_buffer_alloc(dev, sizeof(*(hid->cr)), SLAB_ATOMIC, &hid->cr_dma)))
1627 return -1;
bf0964dc 1628 if (!(hid->ctrlbuf = usb_buffer_alloc(dev, hid->bufsize, SLAB_ATOMIC, &hid->ctrlbuf_dma)))
1da177e4
LT		 1629 return -1;
1630
1631 return 0;
1632}
1633
1634static void hid_free_buffers(struct usb_device *dev, struct hid_device *hid)
1635{
1636 if (hid->inbuf)
bf0964dc 1637 usb_buffer_free(dev, hid->bufsize, hid->inbuf, hid->inbuf_dma);
1da177e4 1638 if (hid->outbuf)
bf0964dc 1639 usb_buffer_free(dev, hid->bufsize, hid->outbuf, hid->outbuf_dma);
1da177e4
LT		 1640 if (hid->cr)
1641 usb_buffer_free(dev, sizeof(*(hid->cr)), hid->cr, hid->cr_dma);
1642 if (hid->ctrlbuf)
bf0964dc 1643 usb_buffer_free(dev, hid->bufsize, hid->ctrlbuf, hid->ctrlbuf_dma);
1da177e4
LT		 1644}
1645
940824b0
VP		 1646/*
1647 * Cherry Cymotion keyboard have an invalid HID report descriptor,
1648 * that needs fixing before we can parse it.
1649 */
1650
1651static void hid_fixup_cymotion_descriptor(char *rdesc, int rsize)
1652{
1653 if (rsize >= 17 && rdesc[11] == 0x3c && rdesc[12] == 0x02) {
1654 info("Fixing up Cherry Cymotion report descriptor");
1655 rdesc[11] = rdesc[16] = 0xff;
1656 rdesc[12] = rdesc[17] = 0x03;
1657 }
1658}
1659
1da177e4
LT		 1660static struct hid_device *usb_hid_configure(struct usb_interface *intf)
1661{
1662 struct usb_host_interface *interface = intf->cur_altsetting;
1663 struct usb_device *dev = interface_to_usbdev (intf);
1664 struct hid_descriptor *hdesc;
1665 struct hid_device *hid;
1666 unsigned quirks = 0, rsize = 0;
c5b7c7c3
DT		 1667 char *rdesc;
1668 int n, len, insize = 0;
1da177e4
LT		 1669
1670 for (n = 0; hid_blacklist[n].idVendor; n++)
1671 if ((hid_blacklist[n].idVendor == le16_to_cpu(dev->descriptor.idVendor)) &&
1672 (hid_blacklist[n].idProduct == le16_to_cpu(dev->descriptor.idProduct)))
1673 quirks = hid_blacklist[n].quirks;
1674
1675 if (quirks & HID_QUIRK_IGNORE)
1676 return NULL;
1677
c5b7c7c3
DT		 1678 if (usb_get_extra_descriptor(interface, HID_DT_HID, &hdesc) &&
1679 (!interface->desc.bNumEndpoints ||
1680 usb_get_extra_descriptor(&interface->endpoint[0], HID_DT_HID, &hdesc))) {
1681 dbg("class descriptor not present\n");
1682 return NULL;
1da177e4
LT		 1683 }
1684
1685 for (n = 0; n < hdesc->bNumDescriptors; n++)
1686 if (hdesc->desc[n].bDescriptorType == HID_DT_REPORT)
1687 rsize = le16_to_cpu(hdesc->desc[n].wDescriptorLength);
1688
1689 if (!rsize || rsize > HID_MAX_DESCRIPTOR_SIZE) {
1690 dbg("weird size of report descriptor (%u)", rsize);
1691 return NULL;
1692 }
1693
1694 if (!(rdesc = kmalloc(rsize, GFP_KERNEL))) {
1695 dbg("couldn't allocate rdesc memory");
1696 return NULL;
1697 }
1698
854561b0
VP		 1699 hid_set_idle(dev, interface->desc.bInterfaceNumber, 0, 0);
1700
1da177e4
LT		 1701 if ((n = hid_get_class_descriptor(dev, interface->desc.bInterfaceNumber, HID_DT_REPORT, rdesc, rsize)) < 0) {
1702 dbg("reading report descriptor failed");
1703 kfree(rdesc);
1704 return NULL;
1705 }
1706
940824b0
VP		 1707 if ((quirks & HID_QUIRK_CYMOTION))
1708 hid_fixup_cymotion_descriptor(rdesc, rsize);
1709
1da177e4
LT		 1710#ifdef DEBUG_DATA
1711 printk(KERN_DEBUG __FILE__ ": report descriptor (size %u, read %d) = ", rsize, n);
1712 for (n = 0; n < rsize; n++)
1713 printk(" %02x", (unsigned char) rdesc[n]);
1714 printk("\n");
1715#endif
1716
1717 if (!(hid = hid_parse_report(rdesc, n))) {
1718 dbg("parsing report descriptor failed");
1719 kfree(rdesc);
1720 return NULL;
1721 }
1722
1723 kfree(rdesc);
1724 hid->quirks = quirks;
1725
bf0964dc
MH		 1726 hid->bufsize = HID_MIN_BUFFER_SIZE;
1727 hid_find_max_report(hid, HID_INPUT_REPORT, &hid->bufsize);
1728 hid_find_max_report(hid, HID_OUTPUT_REPORT, &hid->bufsize);
1729 hid_find_max_report(hid, HID_FEATURE_REPORT, &hid->bufsize);
1730
1731 if (hid->bufsize > HID_MAX_BUFFER_SIZE)
1732 hid->bufsize = HID_MAX_BUFFER_SIZE;
1733
1734 hid_find_max_report(hid, HID_INPUT_REPORT, &insize);
1735
1736 if (insize > HID_MAX_BUFFER_SIZE)
1737 insize = HID_MAX_BUFFER_SIZE;
1738
1da177e4
LT		 1739 if (hid_alloc_buffers(dev, hid)) {
1740 hid_free_buffers(dev, hid);
1741 goto fail;
1742 }
1743
1744 for (n = 0; n < interface->desc.bNumEndpoints; n++) {
1745
1746 struct usb_endpoint_descriptor *endpoint;
1747 int pipe;
1748 int interval;
1749
1750 endpoint = &interface->endpoint[n].desc;
1751 if ((endpoint->bmAttributes & 3) != 3) /* Not an interrupt endpoint */
1752 continue;
1753
1da177e4 1754 interval = endpoint->bInterval;
1da177e4
LT		 1755
1756 /* Change the polling interval of mice. */
1757 if (hid->collection->usage == HID_GD_MOUSE && hid_mousepoll_interval > 0)
1758 interval = hid_mousepoll_interval;
05f091ab 1759
1da177e4
LT		 1760 if (endpoint->bEndpointAddress & USB_DIR_IN) {
1761 if (hid->urbin)
1762 continue;
1763 if (!(hid->urbin = usb_alloc_urb(0, GFP_KERNEL)))
1764 goto fail;
1765 pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
bf0964dc 1766 usb_fill_int_urb(hid->urbin, dev, pipe, hid->inbuf, insize,
1da177e4
LT		 1767 hid_irq_in, hid, interval);
1768 hid->urbin->transfer_dma = hid->inbuf_dma;
b375a049 1769 hid->urbin->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1da177e4
LT		 1770 } else {
1771 if (hid->urbout)
1772 continue;
1773 if (!(hid->urbout = usb_alloc_urb(0, GFP_KERNEL)))
1774 goto fail;
1775 pipe = usb_sndintpipe(dev, endpoint->bEndpointAddress);
1776 usb_fill_int_urb(hid->urbout, dev, pipe, hid->outbuf, 0,
1777 hid_irq_out, hid, interval);
1778 hid->urbout->transfer_dma = hid->outbuf_dma;
b375a049 1779 hid->urbout->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1da177e4
LT		 1780 }
1781 }
1782
1783 if (!hid->urbin) {
1784 err("couldn't find an input interrupt endpoint");
1785 goto fail;
1786 }
1787
1788 init_waitqueue_head(&hid->wait);
1789
1790 spin_lock_init(&hid->outlock);
1791 spin_lock_init(&hid->ctrllock);
1792
1793 hid->version = le16_to_cpu(hdesc->bcdHID);
1794 hid->country = hdesc->bCountryCode;
1795 hid->dev = dev;
1796 hid->intf = intf;
1797 hid->ifnum = interface->desc.bInterfaceNumber;
1798
1799 hid->name[0] = 0;
1800
c5b7c7c3
DT		 1801 if (dev->manufacturer)
1802 strlcpy(hid->name, dev->manufacturer, sizeof(hid->name));
1803
1804 if (dev->product) {
1805 if (dev->manufacturer)
1806 strlcat(hid->name, " ", sizeof(hid->name));
1807 strlcat(hid->name, dev->product, sizeof(hid->name));
1808 }
1809
1810 if (!strlen(hid->name))
1811 snprintf(hid->name, sizeof(hid->name), "HID %04x:%04x",
1812 le16_to_cpu(dev->descriptor.idVendor),
1813 le16_to_cpu(dev->descriptor.idProduct));
1da177e4 1814
c5b7c7c3
DT		 1815 usb_make_path(dev, hid->phys, sizeof(hid->phys));
1816 strlcat(hid->phys, "/input", sizeof(hid->phys));
1817 len = strlen(hid->phys);
1818 if (len < sizeof(hid->phys) - 1)
1819 snprintf(hid->phys + len, sizeof(hid->phys) - len,
1820 "%d", intf->altsetting[0].desc.bInterfaceNumber);
1da177e4
LT		 1821
1822 if (usb_string(dev, dev->descriptor.iSerialNumber, hid->uniq, 64) <= 0)
1823 hid->uniq[0] = 0;
1824
1da177e4
LT		 1825 hid->urbctrl = usb_alloc_urb(0, GFP_KERNEL);
1826 if (!hid->urbctrl)
1827 goto fail;
c5b7c7c3 1828
1da177e4
LT		 1829 usb_fill_control_urb(hid->urbctrl, dev, 0, (void *) hid->cr,
1830 hid->ctrlbuf, 1, hid_ctrl, hid);
1831 hid->urbctrl->setup_dma = hid->cr_dma;
1832 hid->urbctrl->transfer_dma = hid->ctrlbuf_dma;
b375a049 1833 hid->urbctrl->transfer_flags |= (URB_NO_TRANSFER_DMA_MAP | URB_NO_SETUP_DMA_MAP);
1da177e4
LT		 1834
1835 return hid;
1836
1837fail:
1838
1839 if (hid->urbin)
1840 usb_free_urb(hid->urbin);
1841 if (hid->urbout)
1842 usb_free_urb(hid->urbout);
1843 if (hid->urbctrl)
1844 usb_free_urb(hid->urbctrl);
1845 hid_free_buffers(dev, hid);
1846 hid_free_device(hid);
1847
1848 return NULL;
1849}
1850
1851static void hid_disconnect(struct usb_interface *intf)
1852{
1853 struct hid_device *hid = usb_get_intfdata (intf);
1854
1855 if (!hid)
1856 return;
1857
1858 usb_set_intfdata(intf, NULL);
1859 usb_kill_urb(hid->urbin);
1860 usb_kill_urb(hid->urbout);
1861 usb_kill_urb(hid->urbctrl);
1862
1863 if (hid->claimed & HID_CLAIMED_INPUT)
1864 hidinput_disconnect(hid);
1865 if (hid->claimed & HID_CLAIMED_HIDDEV)
1866 hiddev_disconnect(hid);
1867
1868 usb_free_urb(hid->urbin);
1869 usb_free_urb(hid->urbctrl);
1870 if (hid->urbout)
1871 usb_free_urb(hid->urbout);
1872
1873 hid_free_buffers(hid->dev, hid);
1874 hid_free_device(hid);
1875}
1876
1877static int hid_probe(struct usb_interface *intf, const struct usb_device_id *id)
1878{
1879 struct hid_device *hid;
1880 char path[64];
1881 int i;
1882 char *c;
1883
1884 dbg("HID probe called for ifnum %d",
1885 intf->altsetting->desc.bInterfaceNumber);
1886
1887 if (!(hid = usb_hid_configure(intf)))
479f6ea8 1888 return -ENODEV;
1da177e4
LT		 1889
1890 hid_init_reports(hid);
1891 hid_dump_device(hid);
1892
1893 if (!hidinput_connect(hid))
1894 hid->claimed |= HID_CLAIMED_INPUT;
1895 if (!hiddev_connect(hid))
1896 hid->claimed |= HID_CLAIMED_HIDDEV;
1897
1898 usb_set_intfdata(intf, hid);
1899
1900 if (!hid->claimed) {
1901 printk ("HID device not claimed by input or hiddev\n");
1902 hid_disconnect(intf);
479f6ea8 1903 return -ENODEV;
1da177e4
LT		 1904 }
1905
1906 printk(KERN_INFO);
1907
1908 if (hid->claimed & HID_CLAIMED_INPUT)
1909 printk("input");
1910 if (hid->claimed == (HID_CLAIMED_INPUT | HID_CLAIMED_HIDDEV))
1911 printk(",");
1912 if (hid->claimed & HID_CLAIMED_HIDDEV)
1913 printk("hiddev%d", hid->minor);
1914
1915 c = "Device";
1916 for (i = 0; i < hid->maxcollection; i++) {
1917 if (hid->collection[i].type == HID_COLLECTION_APPLICATION &&
1918 (hid->collection[i].usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
1919 (hid->collection[i].usage & 0xffff) < ARRAY_SIZE(hid_types)) {
1920 c = hid_types[hid->collection[i].usage & 0xffff];
1921 break;
1922 }
1923 }
1924
1925 usb_make_path(interface_to_usbdev(intf), path, 63);
1926
1927 printk(": USB HID v%x.%02x %s [%s] on %s\n",
1928 hid->version >> 8, hid->version & 0xff, c, hid->name, path);
1929
1930 return 0;
1931}
1932
27d72e85 1933static int hid_suspend(struct usb_interface *intf, pm_message_t message)
1da177e4
LT		 1934{
1935 struct hid_device *hid = usb_get_intfdata (intf);
1936
1937 usb_kill_urb(hid->urbin);
1da177e4
LT		 1938 dev_dbg(&intf->dev, "suspend\n");
1939 return 0;
1940}
1941
1942static int hid_resume(struct usb_interface *intf)
1943{
1944 struct hid_device *hid = usb_get_intfdata (intf);
1945 int status;
1946
1da177e4
LT		 1947 if (hid->open)
1948 status = usb_submit_urb(hid->urbin, GFP_NOIO);
1949 else
1950 status = 0;
1951 dev_dbg(&intf->dev, "resume status %d\n", status);
1952 return status;
1953}
1954
1955static struct usb_device_id hid_usb_ids [] = {
1956 { .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS,
1957 .bInterfaceClass = USB_INTERFACE_CLASS_HID },
1958 { } /* Terminating entry */
1959};
1960
1961MODULE_DEVICE_TABLE (usb, hid_usb_ids);
1962
1963static struct usb_driver hid_driver = {
1da177e4
LT		 1964 .name = "usbhid",
1965 .probe = hid_probe,
1966 .disconnect = hid_disconnect,
1967 .suspend = hid_suspend,
1968 .resume = hid_resume,
1969 .id_table = hid_usb_ids,
1970};
1971
1972static int __init hid_init(void)
1973{
1974 int retval;
1975 retval = hiddev_init();
1976 if (retval)
1977 goto hiddev_init_fail;
1978 retval = usb_register(&hid_driver);
1979 if (retval)
1980 goto usb_register_fail;
1981 info(DRIVER_VERSION ":" DRIVER_DESC);
1982
1983 return 0;
1984usb_register_fail:
1985 hiddev_exit();
1986hiddev_init_fail:
1987 return retval;
1988}
1989
1990static void __exit hid_exit(void)
1991{
1992 usb_deregister(&hid_driver);
1993 hiddev_exit();
1994}
1995
1996module_init(hid_init);
1997module_exit(hid_exit);
1998
1999MODULE_AUTHOR(DRIVER_AUTHOR);
2000MODULE_DESCRIPTION(DRIVER_DESC);
2001MODULE_LICENSE(DRIVER_LICENSE);
Linux kernel - Deliverables
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