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Merge branches 'upstream/core' and 'upstream/bugfix' of git://git.kernel.org/pub...
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / hid / hid-core.c
1 /*
2 * HID support for Linux
3 *
4 * Copyright (c) 1999 Andreas Gal
5 * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
6 * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
7 * Copyright (c) 2006-2010 Jiri Kosina
8 */
9
10 /*
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the Free
13 * Software Foundation; either version 2 of the License, or (at your option)
14 * any later version.
15 */
16
17 #include <linux/module.h>
18 #include <linux/slab.h>
19 #include <linux/init.h>
20 #include <linux/kernel.h>
21 #include <linux/list.h>
22 #include <linux/mm.h>
23 #include <linux/spinlock.h>
24 #include <asm/unaligned.h>
25 #include <asm/byteorder.h>
26 #include <linux/input.h>
27 #include <linux/wait.h>
28 #include <linux/vmalloc.h>
29 #include <linux/sched.h>
30
31 #include <linux/hid.h>
32 #include <linux/hiddev.h>
33 #include <linux/hid-debug.h>
34 #include <linux/hidraw.h>
35
36 #include "hid-ids.h"
37
38 /*
39 * Version Information
40 */
41
42 #define DRIVER_DESC "HID core driver"
43 #define DRIVER_LICENSE "GPL"
44
45 int hid_debug = 0;
46 module_param_named(debug, hid_debug, int, 0600);
47 MODULE_PARM_DESC(debug, "toggle HID debugging messages");
48 EXPORT_SYMBOL_GPL(hid_debug);
49
50 /*
51 * Register a new report for a device.
52 */
53
54 struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
55 {
56 struct hid_report_enum *report_enum = device->report_enum + type;
57 struct hid_report *report;
58
59 if (report_enum->report_id_hash[id])
60 return report_enum->report_id_hash[id];
61
62 if (!(report = kzalloc(sizeof(struct hid_report), GFP_KERNEL)))
63 return NULL;
64
65 if (id != 0)
66 report_enum->numbered = 1;
67
68 report->id = id;
69 report->type = type;
70 report->size = 0;
71 report->device = device;
72 report_enum->report_id_hash[id] = report;
73
74 list_add_tail(&report->list, &report_enum->report_list);
75
76 return report;
77 }
78 EXPORT_SYMBOL_GPL(hid_register_report);
79
80 /*
81 * Register a new field for this report.
82 */
83
84 static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values)
85 {
86 struct hid_field *field;
87
88 if (report->maxfield == HID_MAX_FIELDS) {
89 dbg_hid("too many fields in report\n");
90 return NULL;
91 }
92
93 if (!(field = kzalloc(sizeof(struct hid_field) + usages * sizeof(struct hid_usage)
94 + values * sizeof(unsigned), GFP_KERNEL))) return NULL;
95
96 field->index = report->maxfield++;
97 report->field[field->index] = field;
98 field->usage = (struct hid_usage *)(field + 1);
99 field->value = (s32 *)(field->usage + usages);
100 field->report = report;
101
102 return field;
103 }
104
105 /*
106 * Open a collection. The type/usage is pushed on the stack.
107 */
108
109 static int open_collection(struct hid_parser *parser, unsigned type)
110 {
111 struct hid_collection *collection;
112 unsigned usage;
113
114 usage = parser->local.usage[0];
115
116 if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) {
117 dbg_hid("collection stack overflow\n");
118 return -1;
119 }
120
121 if (parser->device->maxcollection == parser->device->collection_size) {
122 collection = kmalloc(sizeof(struct hid_collection) *
123 parser->device->collection_size * 2, GFP_KERNEL);
124 if (collection == NULL) {
125 dbg_hid("failed to reallocate collection array\n");
126 return -1;
127 }
128 memcpy(collection, parser->device->collection,
129 sizeof(struct hid_collection) *
130 parser->device->collection_size);
131 memset(collection + parser->device->collection_size, 0,
132 sizeof(struct hid_collection) *
133 parser->device->collection_size);
134 kfree(parser->device->collection);
135 parser->device->collection = collection;
136 parser->device->collection_size *= 2;
137 }
138
139 parser->collection_stack[parser->collection_stack_ptr++] =
140 parser->device->maxcollection;
141
142 collection = parser->device->collection +
143 parser->device->maxcollection++;
144 collection->type = type;
145 collection->usage = usage;
146 collection->level = parser->collection_stack_ptr - 1;
147
148 if (type == HID_COLLECTION_APPLICATION)
149 parser->device->maxapplication++;
150
151 return 0;
152 }
153
154 /*
155 * Close a collection.
156 */
157
158 static int close_collection(struct hid_parser *parser)
159 {
160 if (!parser->collection_stack_ptr) {
161 dbg_hid("collection stack underflow\n");
162 return -1;
163 }
164 parser->collection_stack_ptr--;
165 return 0;
166 }
167
168 /*
169 * Climb up the stack, search for the specified collection type
170 * and return the usage.
171 */
172
173 static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type)
174 {
175 int n;
176 for (n = parser->collection_stack_ptr - 1; n >= 0; n--)
177 if (parser->device->collection[parser->collection_stack[n]].type == type)
178 return parser->device->collection[parser->collection_stack[n]].usage;
179 return 0; /* we know nothing about this usage type */
180 }
181
182 /*
183 * Add a usage to the temporary parser table.
184 */
185
186 static int hid_add_usage(struct hid_parser *parser, unsigned usage)
187 {
188 if (parser->local.usage_index >= HID_MAX_USAGES) {
189 dbg_hid("usage index exceeded\n");
190 return -1;
191 }
192 parser->local.usage[parser->local.usage_index] = usage;
193 parser->local.collection_index[parser->local.usage_index] =
194 parser->collection_stack_ptr ?
195 parser->collection_stack[parser->collection_stack_ptr - 1] : 0;
196 parser->local.usage_index++;
197 return 0;
198 }
199
200 /*
201 * Register a new field for this report.
202 */
203
204 static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags)
205 {
206 struct hid_report *report;
207 struct hid_field *field;
208 int usages;
209 unsigned offset;
210 int i;
211
212 if (!(report = hid_register_report(parser->device, report_type, parser->global.report_id))) {
213 dbg_hid("hid_register_report failed\n");
214 return -1;
215 }
216
217 if (parser->global.logical_maximum < parser->global.logical_minimum) {
218 dbg_hid("logical range invalid %d %d\n", parser->global.logical_minimum, parser->global.logical_maximum);
219 return -1;
220 }
221
222 offset = report->size;
223 report->size += parser->global.report_size * parser->global.report_count;
224
225 if (!parser->local.usage_index) /* Ignore padding fields */
226 return 0;
227
228 usages = max_t(int, parser->local.usage_index, parser->global.report_count);
229
230 if ((field = hid_register_field(report, usages, parser->global.report_count)) == NULL)
231 return 0;
232
233 field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
234 field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
235 field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
236
237 for (i = 0; i < usages; i++) {
238 int j = i;
239 /* Duplicate the last usage we parsed if we have excess values */
240 if (i >= parser->local.usage_index)
241 j = parser->local.usage_index - 1;
242 field->usage[i].hid = parser->local.usage[j];
243 field->usage[i].collection_index =
244 parser->local.collection_index[j];
245 }
246
247 field->maxusage = usages;
248 field->flags = flags;
249 field->report_offset = offset;
250 field->report_type = report_type;
251 field->report_size = parser->global.report_size;
252 field->report_count = parser->global.report_count;
253 field->logical_minimum = parser->global.logical_minimum;
254 field->logical_maximum = parser->global.logical_maximum;
255 field->physical_minimum = parser->global.physical_minimum;
256 field->physical_maximum = parser->global.physical_maximum;
257 field->unit_exponent = parser->global.unit_exponent;
258 field->unit = parser->global.unit;
259
260 return 0;
261 }
262
263 /*
264 * Read data value from item.
265 */
266
267 static u32 item_udata(struct hid_item *item)
268 {
269 switch (item->size) {
270 case 1: return item->data.u8;
271 case 2: return item->data.u16;
272 case 4: return item->data.u32;
273 }
274 return 0;
275 }
276
277 static s32 item_sdata(struct hid_item *item)
278 {
279 switch (item->size) {
280 case 1: return item->data.s8;
281 case 2: return item->data.s16;
282 case 4: return item->data.s32;
283 }
284 return 0;
285 }
286
287 /*
288 * Process a global item.
289 */
290
291 static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
292 {
293 switch (item->tag) {
294 case HID_GLOBAL_ITEM_TAG_PUSH:
295
296 if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
297 dbg_hid("global enviroment stack overflow\n");
298 return -1;
299 }
300
301 memcpy(parser->global_stack + parser->global_stack_ptr++,
302 &parser->global, sizeof(struct hid_global));
303 return 0;
304
305 case HID_GLOBAL_ITEM_TAG_POP:
306
307 if (!parser->global_stack_ptr) {
308 dbg_hid("global enviroment stack underflow\n");
309 return -1;
310 }
311
312 memcpy(&parser->global, parser->global_stack +
313 --parser->global_stack_ptr, sizeof(struct hid_global));
314 return 0;
315
316 case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
317 parser->global.usage_page = item_udata(item);
318 return 0;
319
320 case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
321 parser->global.logical_minimum = item_sdata(item);
322 return 0;
323
324 case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
325 if (parser->global.logical_minimum < 0)
326 parser->global.logical_maximum = item_sdata(item);
327 else
328 parser->global.logical_maximum = item_udata(item);
329 return 0;
330
331 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
332 parser->global.physical_minimum = item_sdata(item);
333 return 0;
334
335 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
336 if (parser->global.physical_minimum < 0)
337 parser->global.physical_maximum = item_sdata(item);
338 else
339 parser->global.physical_maximum = item_udata(item);
340 return 0;
341
342 case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
343 parser->global.unit_exponent = item_sdata(item);
344 return 0;
345
346 case HID_GLOBAL_ITEM_TAG_UNIT:
347 parser->global.unit = item_udata(item);
348 return 0;
349
350 case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
351 parser->global.report_size = item_udata(item);
352 if (parser->global.report_size > 32) {
353 dbg_hid("invalid report_size %d\n",
354 parser->global.report_size);
355 return -1;
356 }
357 return 0;
358
359 case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
360 parser->global.report_count = item_udata(item);
361 if (parser->global.report_count > HID_MAX_USAGES) {
362 dbg_hid("invalid report_count %d\n",
363 parser->global.report_count);
364 return -1;
365 }
366 return 0;
367
368 case HID_GLOBAL_ITEM_TAG_REPORT_ID:
369 parser->global.report_id = item_udata(item);
370 if (parser->global.report_id == 0) {
371 dbg_hid("report_id 0 is invalid\n");
372 return -1;
373 }
374 return 0;
375
376 default:
377 dbg_hid("unknown global tag 0x%x\n", item->tag);
378 return -1;
379 }
380 }
381
382 /*
383 * Process a local item.
384 */
385
386 static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
387 {
388 __u32 data;
389 unsigned n;
390
391 data = item_udata(item);
392
393 switch (item->tag) {
394 case HID_LOCAL_ITEM_TAG_DELIMITER:
395
396 if (data) {
397 /*
398 * We treat items before the first delimiter
399 * as global to all usage sets (branch 0).
400 * In the moment we process only these global
401 * items and the first delimiter set.
402 */
403 if (parser->local.delimiter_depth != 0) {
404 dbg_hid("nested delimiters\n");
405 return -1;
406 }
407 parser->local.delimiter_depth++;
408 parser->local.delimiter_branch++;
409 } else {
410 if (parser->local.delimiter_depth < 1) {
411 dbg_hid("bogus close delimiter\n");
412 return -1;
413 }
414 parser->local.delimiter_depth--;
415 }
416 return 1;
417
418 case HID_LOCAL_ITEM_TAG_USAGE:
419
420 if (parser->local.delimiter_branch > 1) {
421 dbg_hid("alternative usage ignored\n");
422 return 0;
423 }
424
425 if (item->size <= 2)
426 data = (parser->global.usage_page << 16) + data;
427
428 return hid_add_usage(parser, data);
429
430 case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
431
432 if (parser->local.delimiter_branch > 1) {
433 dbg_hid("alternative usage ignored\n");
434 return 0;
435 }
436
437 if (item->size <= 2)
438 data = (parser->global.usage_page << 16) + data;
439
440 parser->local.usage_minimum = data;
441 return 0;
442
443 case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
444
445 if (parser->local.delimiter_branch > 1) {
446 dbg_hid("alternative usage ignored\n");
447 return 0;
448 }
449
450 if (item->size <= 2)
451 data = (parser->global.usage_page << 16) + data;
452
453 for (n = parser->local.usage_minimum; n <= data; n++)
454 if (hid_add_usage(parser, n)) {
455 dbg_hid("hid_add_usage failed\n");
456 return -1;
457 }
458 return 0;
459
460 default:
461
462 dbg_hid("unknown local item tag 0x%x\n", item->tag);
463 return 0;
464 }
465 return 0;
466 }
467
468 /*
469 * Process a main item.
470 */
471
472 static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
473 {
474 __u32 data;
475 int ret;
476
477 data = item_udata(item);
478
479 switch (item->tag) {
480 case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
481 ret = open_collection(parser, data & 0xff);
482 break;
483 case HID_MAIN_ITEM_TAG_END_COLLECTION:
484 ret = close_collection(parser);
485 break;
486 case HID_MAIN_ITEM_TAG_INPUT:
487 ret = hid_add_field(parser, HID_INPUT_REPORT, data);
488 break;
489 case HID_MAIN_ITEM_TAG_OUTPUT:
490 ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
491 break;
492 case HID_MAIN_ITEM_TAG_FEATURE:
493 ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
494 break;
495 default:
496 dbg_hid("unknown main item tag 0x%x\n", item->tag);
497 ret = 0;
498 }
499
500 memset(&parser->local, 0, sizeof(parser->local)); /* Reset the local parser environment */
501
502 return ret;
503 }
504
505 /*
506 * Process a reserved item.
507 */
508
509 static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
510 {
511 dbg_hid("reserved item type, tag 0x%x\n", item->tag);
512 return 0;
513 }
514
515 /*
516 * Free a report and all registered fields. The field->usage and
517 * field->value table's are allocated behind the field, so we need
518 * only to free(field) itself.
519 */
520
521 static void hid_free_report(struct hid_report *report)
522 {
523 unsigned n;
524
525 for (n = 0; n < report->maxfield; n++)
526 kfree(report->field[n]);
527 kfree(report);
528 }
529
530 /*
531 * Free a device structure, all reports, and all fields.
532 */
533
534 static void hid_device_release(struct device *dev)
535 {
536 struct hid_device *device = container_of(dev, struct hid_device, dev);
537 unsigned i, j;
538
539 for (i = 0; i < HID_REPORT_TYPES; i++) {
540 struct hid_report_enum *report_enum = device->report_enum + i;
541
542 for (j = 0; j < 256; j++) {
543 struct hid_report *report = report_enum->report_id_hash[j];
544 if (report)
545 hid_free_report(report);
546 }
547 }
548
549 kfree(device->rdesc);
550 kfree(device->collection);
551 kfree(device);
552 }
553
554 /*
555 * Fetch a report description item from the data stream. We support long
556 * items, though they are not used yet.
557 */
558
559 static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
560 {
561 u8 b;
562
563 if ((end - start) <= 0)
564 return NULL;
565
566 b = *start++;
567
568 item->type = (b >> 2) & 3;
569 item->tag = (b >> 4) & 15;
570
571 if (item->tag == HID_ITEM_TAG_LONG) {
572
573 item->format = HID_ITEM_FORMAT_LONG;
574
575 if ((end - start) < 2)
576 return NULL;
577
578 item->size = *start++;
579 item->tag = *start++;
580
581 if ((end - start) < item->size)
582 return NULL;
583
584 item->data.longdata = start;
585 start += item->size;
586 return start;
587 }
588
589 item->format = HID_ITEM_FORMAT_SHORT;
590 item->size = b & 3;
591
592 switch (item->size) {
593 case 0:
594 return start;
595
596 case 1:
597 if ((end - start) < 1)
598 return NULL;
599 item->data.u8 = *start++;
600 return start;
601
602 case 2:
603 if ((end - start) < 2)
604 return NULL;
605 item->data.u16 = get_unaligned_le16(start);
606 start = (__u8 *)((__le16 *)start + 1);
607 return start;
608
609 case 3:
610 item->size++;
611 if ((end - start) < 4)
612 return NULL;
613 item->data.u32 = get_unaligned_le32(start);
614 start = (__u8 *)((__le32 *)start + 1);
615 return start;
616 }
617
618 return NULL;
619 }
620
621 /**
622 * hid_parse_report - parse device report
623 *
624 * @device: hid device
625 * @start: report start
626 * @size: report size
627 *
628 * Parse a report description into a hid_device structure. Reports are
629 * enumerated, fields are attached to these reports.
630 * 0 returned on success, otherwise nonzero error value.
631 */
632 int hid_parse_report(struct hid_device *device, __u8 *start,
633 unsigned size)
634 {
635 struct hid_parser *parser;
636 struct hid_item item;
637 __u8 *end;
638 int ret;
639 static int (*dispatch_type[])(struct hid_parser *parser,
640 struct hid_item *item) = {
641 hid_parser_main,
642 hid_parser_global,
643 hid_parser_local,
644 hid_parser_reserved
645 };
646
647 if (device->driver->report_fixup)
648 start = device->driver->report_fixup(device, start, &size);
649
650 device->rdesc = kmemdup(start, size, GFP_KERNEL);
651 if (device->rdesc == NULL)
652 return -ENOMEM;
653 device->rsize = size;
654
655 parser = vmalloc(sizeof(struct hid_parser));
656 if (!parser) {
657 ret = -ENOMEM;
658 goto err;
659 }
660
661 memset(parser, 0, sizeof(struct hid_parser));
662 parser->device = device;
663
664 end = start + size;
665 ret = -EINVAL;
666 while ((start = fetch_item(start, end, &item)) != NULL) {
667
668 if (item.format != HID_ITEM_FORMAT_SHORT) {
669 dbg_hid("unexpected long global item\n");
670 goto err;
671 }
672
673 if (dispatch_type[item.type](parser, &item)) {
674 dbg_hid("item %u %u %u %u parsing failed\n",
675 item.format, (unsigned)item.size, (unsigned)item.type, (unsigned)item.tag);
676 goto err;
677 }
678
679 if (start == end) {
680 if (parser->collection_stack_ptr) {
681 dbg_hid("unbalanced collection at end of report description\n");
682 goto err;
683 }
684 if (parser->local.delimiter_depth) {
685 dbg_hid("unbalanced delimiter at end of report description\n");
686 goto err;
687 }
688 vfree(parser);
689 return 0;
690 }
691 }
692
693 dbg_hid("item fetching failed at offset %d\n", (int)(end - start));
694 err:
695 vfree(parser);
696 return ret;
697 }
698 EXPORT_SYMBOL_GPL(hid_parse_report);
699
700 /*
701 * Convert a signed n-bit integer to signed 32-bit integer. Common
702 * cases are done through the compiler, the screwed things has to be
703 * done by hand.
704 */
705
706 static s32 snto32(__u32 value, unsigned n)
707 {
708 switch (n) {
709 case 8: return ((__s8)value);
710 case 16: return ((__s16)value);
711 case 32: return ((__s32)value);
712 }
713 return value & (1 << (n - 1)) ? value | (-1 << n) : value;
714 }
715
716 /*
717 * Convert a signed 32-bit integer to a signed n-bit integer.
718 */
719
720 static u32 s32ton(__s32 value, unsigned n)
721 {
722 s32 a = value >> (n - 1);
723 if (a && a != -1)
724 return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
725 return value & ((1 << n) - 1);
726 }
727
728 /*
729 * Extract/implement a data field from/to a little endian report (bit array).
730 *
731 * Code sort-of follows HID spec:
732 * http://www.usb.org/developers/devclass_docs/HID1_11.pdf
733 *
734 * While the USB HID spec allows unlimited length bit fields in "report
735 * descriptors", most devices never use more than 16 bits.
736 * One model of UPS is claimed to report "LINEV" as a 32-bit field.
737 * Search linux-kernel and linux-usb-devel archives for "hid-core extract".
738 */
739
740 static __inline__ __u32 extract(__u8 *report, unsigned offset, unsigned n)
741 {
742 u64 x;
743
744 if (n > 32)
745 printk(KERN_WARNING "HID: extract() called with n (%d) > 32! (%s)\n",
746 n, current->comm);
747
748 report += offset >> 3; /* adjust byte index */
749 offset &= 7; /* now only need bit offset into one byte */
750 x = get_unaligned_le64(report);
751 x = (x >> offset) & ((1ULL << n) - 1); /* extract bit field */
752 return (u32) x;
753 }
754
755 /*
756 * "implement" : set bits in a little endian bit stream.
757 * Same concepts as "extract" (see comments above).
758 * The data mangled in the bit stream remains in little endian
759 * order the whole time. It make more sense to talk about
760 * endianness of register values by considering a register
761 * a "cached" copy of the little endiad bit stream.
762 */
763 static __inline__ void implement(__u8 *report, unsigned offset, unsigned n, __u32 value)
764 {
765 u64 x;
766 u64 m = (1ULL << n) - 1;
767
768 if (n > 32)
769 printk(KERN_WARNING "HID: implement() called with n (%d) > 32! (%s)\n",
770 n, current->comm);
771
772 if (value > m)
773 printk(KERN_WARNING "HID: implement() called with too large value %d! (%s)\n",
774 value, current->comm);
775 WARN_ON(value > m);
776 value &= m;
777
778 report += offset >> 3;
779 offset &= 7;
780
781 x = get_unaligned_le64(report);
782 x &= ~(m << offset);
783 x |= ((u64)value) << offset;
784 put_unaligned_le64(x, report);
785 }
786
787 /*
788 * Search an array for a value.
789 */
790
791 static __inline__ int search(__s32 *array, __s32 value, unsigned n)
792 {
793 while (n--) {
794 if (*array++ == value)
795 return 0;
796 }
797 return -1;
798 }
799
800 /**
801 * hid_match_report - check if driver's raw_event should be called
802 *
803 * @hid: hid device
804 * @report_type: type to match against
805 *
806 * compare hid->driver->report_table->report_type to report->type
807 */
808 static int hid_match_report(struct hid_device *hid, struct hid_report *report)
809 {
810 const struct hid_report_id *id = hid->driver->report_table;
811
812 if (!id) /* NULL means all */
813 return 1;
814
815 for (; id->report_type != HID_TERMINATOR; id++)
816 if (id->report_type == HID_ANY_ID ||
817 id->report_type == report->type)
818 return 1;
819 return 0;
820 }
821
822 /**
823 * hid_match_usage - check if driver's event should be called
824 *
825 * @hid: hid device
826 * @usage: usage to match against
827 *
828 * compare hid->driver->usage_table->usage_{type,code} to
829 * usage->usage_{type,code}
830 */
831 static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage)
832 {
833 const struct hid_usage_id *id = hid->driver->usage_table;
834
835 if (!id) /* NULL means all */
836 return 1;
837
838 for (; id->usage_type != HID_ANY_ID - 1; id++)
839 if ((id->usage_hid == HID_ANY_ID ||
840 id->usage_hid == usage->hid) &&
841 (id->usage_type == HID_ANY_ID ||
842 id->usage_type == usage->type) &&
843 (id->usage_code == HID_ANY_ID ||
844 id->usage_code == usage->code))
845 return 1;
846 return 0;
847 }
848
849 static void hid_process_event(struct hid_device *hid, struct hid_field *field,
850 struct hid_usage *usage, __s32 value, int interrupt)
851 {
852 struct hid_driver *hdrv = hid->driver;
853 int ret;
854
855 hid_dump_input(hid, usage, value);
856
857 if (hdrv && hdrv->event && hid_match_usage(hid, usage)) {
858 ret = hdrv->event(hid, field, usage, value);
859 if (ret != 0) {
860 if (ret < 0)
861 dbg_hid("%s's event failed with %d\n",
862 hdrv->name, ret);
863 return;
864 }
865 }
866
867 if (hid->claimed & HID_CLAIMED_INPUT)
868 hidinput_hid_event(hid, field, usage, value);
869 if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event)
870 hid->hiddev_hid_event(hid, field, usage, value);
871 }
872
873 /*
874 * Analyse a received field, and fetch the data from it. The field
875 * content is stored for next report processing (we do differential
876 * reporting to the layer).
877 */
878
879 static void hid_input_field(struct hid_device *hid, struct hid_field *field,
880 __u8 *data, int interrupt)
881 {
882 unsigned n;
883 unsigned count = field->report_count;
884 unsigned offset = field->report_offset;
885 unsigned size = field->report_size;
886 __s32 min = field->logical_minimum;
887 __s32 max = field->logical_maximum;
888 __s32 *value;
889
890 if (!(value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC)))
891 return;
892
893 for (n = 0; n < count; n++) {
894
895 value[n] = min < 0 ? snto32(extract(data, offset + n * size, size), size) :
896 extract(data, offset + n * size, size);
897
898 if (!(field->flags & HID_MAIN_ITEM_VARIABLE) /* Ignore report if ErrorRollOver */
899 && value[n] >= min && value[n] <= max
900 && field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
901 goto exit;
902 }
903
904 for (n = 0; n < count; n++) {
905
906 if (HID_MAIN_ITEM_VARIABLE & field->flags) {
907 hid_process_event(hid, field, &field->usage[n], value[n], interrupt);
908 continue;
909 }
910
911 if (field->value[n] >= min && field->value[n] <= max
912 && field->usage[field->value[n] - min].hid
913 && search(value, field->value[n], count))
914 hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt);
915
916 if (value[n] >= min && value[n] <= max
917 && field->usage[value[n] - min].hid
918 && search(field->value, value[n], count))
919 hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt);
920 }
921
922 memcpy(field->value, value, count * sizeof(__s32));
923 exit:
924 kfree(value);
925 }
926
927 /*
928 * Output the field into the report.
929 */
930
931 static void hid_output_field(struct hid_field *field, __u8 *data)
932 {
933 unsigned count = field->report_count;
934 unsigned offset = field->report_offset;
935 unsigned size = field->report_size;
936 unsigned n;
937
938 for (n = 0; n < count; n++) {
939 if (field->logical_minimum < 0) /* signed values */
940 implement(data, offset + n * size, size, s32ton(field->value[n], size));
941 else /* unsigned values */
942 implement(data, offset + n * size, size, field->value[n]);
943 }
944 }
945
946 /*
947 * Create a report.
948 */
949
950 void hid_output_report(struct hid_report *report, __u8 *data)
951 {
952 unsigned n;
953
954 if (report->id > 0)
955 *data++ = report->id;
956
957 memset(data, 0, ((report->size - 1) >> 3) + 1);
958 for (n = 0; n < report->maxfield; n++)
959 hid_output_field(report->field[n], data);
960 }
961 EXPORT_SYMBOL_GPL(hid_output_report);
962
963 /*
964 * Set a field value. The report this field belongs to has to be
965 * created and transferred to the device, to set this value in the
966 * device.
967 */
968
969 int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
970 {
971 unsigned size = field->report_size;
972
973 hid_dump_input(field->report->device, field->usage + offset, value);
974
975 if (offset >= field->report_count) {
976 dbg_hid("offset (%d) exceeds report_count (%d)\n", offset, field->report_count);
977 return -1;
978 }
979 if (field->logical_minimum < 0) {
980 if (value != snto32(s32ton(value, size), size)) {
981 dbg_hid("value %d is out of range\n", value);
982 return -1;
983 }
984 }
985 field->value[offset] = value;
986 return 0;
987 }
988 EXPORT_SYMBOL_GPL(hid_set_field);
989
990 static struct hid_report *hid_get_report(struct hid_report_enum *report_enum,
991 const u8 *data)
992 {
993 struct hid_report *report;
994 unsigned int n = 0; /* Normally report number is 0 */
995
996 /* Device uses numbered reports, data[0] is report number */
997 if (report_enum->numbered)
998 n = *data;
999
1000 report = report_enum->report_id_hash[n];
1001 if (report == NULL)
1002 dbg_hid("undefined report_id %u received\n", n);
1003
1004 return report;
1005 }
1006
1007 void hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
1008 int interrupt)
1009 {
1010 struct hid_report_enum *report_enum = hid->report_enum + type;
1011 struct hid_report *report;
1012 unsigned int a;
1013 int rsize, csize = size;
1014 u8 *cdata = data;
1015
1016 report = hid_get_report(report_enum, data);
1017 if (!report)
1018 return;
1019
1020 if (report_enum->numbered) {
1021 cdata++;
1022 csize--;
1023 }
1024
1025 rsize = ((report->size - 1) >> 3) + 1;
1026
1027 if (csize < rsize) {
1028 dbg_hid("report %d is too short, (%d < %d)\n", report->id,
1029 csize, rsize);
1030 memset(cdata + csize, 0, rsize - csize);
1031 }
1032
1033 if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event)
1034 hid->hiddev_report_event(hid, report);
1035 if (hid->claimed & HID_CLAIMED_HIDRAW)
1036 hidraw_report_event(hid, data, size);
1037
1038 for (a = 0; a < report->maxfield; a++)
1039 hid_input_field(hid, report->field[a], cdata, interrupt);
1040
1041 if (hid->claimed & HID_CLAIMED_INPUT)
1042 hidinput_report_event(hid, report);
1043 }
1044 EXPORT_SYMBOL_GPL(hid_report_raw_event);
1045
1046 /**
1047 * hid_input_report - report data from lower layer (usb, bt...)
1048 *
1049 * @hid: hid device
1050 * @type: HID report type (HID_*_REPORT)
1051 * @data: report contents
1052 * @size: size of data parameter
1053 * @interrupt: distinguish between interrupt and control transfers
1054 *
1055 * This is data entry for lower layers.
1056 */
1057 int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt)
1058 {
1059 struct hid_report_enum *report_enum;
1060 struct hid_driver *hdrv;
1061 struct hid_report *report;
1062 char *buf;
1063 unsigned int i;
1064 int ret;
1065
1066 if (!hid || !hid->driver)
1067 return -ENODEV;
1068 report_enum = hid->report_enum + type;
1069 hdrv = hid->driver;
1070
1071 if (!size) {
1072 dbg_hid("empty report\n");
1073 return -1;
1074 }
1075
1076 buf = kmalloc(sizeof(char) * HID_DEBUG_BUFSIZE, GFP_ATOMIC);
1077
1078 if (!buf)
1079 goto nomem;
1080
1081 /* dump the report */
1082 snprintf(buf, HID_DEBUG_BUFSIZE - 1,
1083 "\nreport (size %u) (%snumbered) = ", size, report_enum->numbered ? "" : "un");
1084 hid_debug_event(hid, buf);
1085
1086 for (i = 0; i < size; i++) {
1087 snprintf(buf, HID_DEBUG_BUFSIZE - 1,
1088 " %02x", data[i]);
1089 hid_debug_event(hid, buf);
1090 }
1091 hid_debug_event(hid, "\n");
1092 kfree(buf);
1093
1094 nomem:
1095 report = hid_get_report(report_enum, data);
1096
1097 if (!report)
1098 return -1;
1099
1100 if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) {
1101 ret = hdrv->raw_event(hid, report, data, size);
1102 if (ret != 0)
1103 return ret < 0 ? ret : 0;
1104 }
1105
1106 hid_report_raw_event(hid, type, data, size, interrupt);
1107
1108 return 0;
1109 }
1110 EXPORT_SYMBOL_GPL(hid_input_report);
1111
1112 static bool hid_match_one_id(struct hid_device *hdev,
1113 const struct hid_device_id *id)
1114 {
1115 return id->bus == hdev->bus &&
1116 (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) &&
1117 (id->product == HID_ANY_ID || id->product == hdev->product);
1118 }
1119
1120 static const struct hid_device_id *hid_match_id(struct hid_device *hdev,
1121 const struct hid_device_id *id)
1122 {
1123 for (; id->bus; id++)
1124 if (hid_match_one_id(hdev, id))
1125 return id;
1126
1127 return NULL;
1128 }
1129
1130 static const struct hid_device_id hid_hiddev_list[] = {
1131 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) },
1132 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) },
1133 { }
1134 };
1135
1136 static bool hid_hiddev(struct hid_device *hdev)
1137 {
1138 return !!hid_match_id(hdev, hid_hiddev_list);
1139 }
1140
1141 int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
1142 {
1143 static const char *types[] = { "Device", "Pointer", "Mouse", "Device",
1144 "Joystick", "Gamepad", "Keyboard", "Keypad",
1145 "Multi-Axis Controller"
1146 };
1147 const char *type, *bus;
1148 char buf[64];
1149 unsigned int i;
1150 int len;
1151
1152 if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE)
1153 connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV);
1154 if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE)
1155 connect_mask |= HID_CONNECT_HIDINPUT_FORCE;
1156 if (hdev->bus != BUS_USB)
1157 connect_mask &= ~HID_CONNECT_HIDDEV;
1158 if (hid_hiddev(hdev))
1159 connect_mask |= HID_CONNECT_HIDDEV_FORCE;
1160
1161 if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,
1162 connect_mask & HID_CONNECT_HIDINPUT_FORCE))
1163 hdev->claimed |= HID_CLAIMED_INPUT;
1164 if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect &&
1165 !hdev->hiddev_connect(hdev,
1166 connect_mask & HID_CONNECT_HIDDEV_FORCE))
1167 hdev->claimed |= HID_CLAIMED_HIDDEV;
1168 if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev))
1169 hdev->claimed |= HID_CLAIMED_HIDRAW;
1170
1171 if (!hdev->claimed) {
1172 dev_err(&hdev->dev, "claimed by neither input, hiddev nor "
1173 "hidraw\n");
1174 return -ENODEV;
1175 }
1176
1177 if ((hdev->claimed & HID_CLAIMED_INPUT) &&
1178 (connect_mask & HID_CONNECT_FF) && hdev->ff_init)
1179 hdev->ff_init(hdev);
1180
1181 len = 0;
1182 if (hdev->claimed & HID_CLAIMED_INPUT)
1183 len += sprintf(buf + len, "input");
1184 if (hdev->claimed & HID_CLAIMED_HIDDEV)
1185 len += sprintf(buf + len, "%shiddev%d", len ? "," : "",
1186 hdev->minor);
1187 if (hdev->claimed & HID_CLAIMED_HIDRAW)
1188 len += sprintf(buf + len, "%shidraw%d", len ? "," : "",
1189 ((struct hidraw *)hdev->hidraw)->minor);
1190
1191 type = "Device";
1192 for (i = 0; i < hdev->maxcollection; i++) {
1193 struct hid_collection *col = &hdev->collection[i];
1194 if (col->type == HID_COLLECTION_APPLICATION &&
1195 (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
1196 (col->usage & 0xffff) < ARRAY_SIZE(types)) {
1197 type = types[col->usage & 0xffff];
1198 break;
1199 }
1200 }
1201
1202 switch (hdev->bus) {
1203 case BUS_USB:
1204 bus = "USB";
1205 break;
1206 case BUS_BLUETOOTH:
1207 bus = "BLUETOOTH";
1208 break;
1209 default:
1210 bus = "<UNKNOWN>";
1211 }
1212
1213 dev_info(&hdev->dev, "%s: %s HID v%x.%02x %s [%s] on %s\n",
1214 buf, bus, hdev->version >> 8, hdev->version & 0xff,
1215 type, hdev->name, hdev->phys);
1216
1217 return 0;
1218 }
1219 EXPORT_SYMBOL_GPL(hid_connect);
1220
1221 void hid_disconnect(struct hid_device *hdev)
1222 {
1223 if (hdev->claimed & HID_CLAIMED_INPUT)
1224 hidinput_disconnect(hdev);
1225 if (hdev->claimed & HID_CLAIMED_HIDDEV)
1226 hdev->hiddev_disconnect(hdev);
1227 if (hdev->claimed & HID_CLAIMED_HIDRAW)
1228 hidraw_disconnect(hdev);
1229 }
1230 EXPORT_SYMBOL_GPL(hid_disconnect);
1231
1232 /* a list of devices for which there is a specialized driver on HID bus */
1233 static const struct hid_device_id hid_blacklist[] = {
1234 { HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M1968) },
1235 { HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M2256) },
1236 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
1237 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
1238 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) },
1239 #if defined(CONFIG_HID_ACRUX_FF) || defined(CONFIG_HID_ACRUX_FF_MODULE)
1240 { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) },
1241 #endif
1242 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ATV_IRCONTROL) },
1243 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
1244 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
1245 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
1246 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) },
1247 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1248 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1249 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1250 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1251 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1252 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1253 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1254 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1255 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1256 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1257 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1258 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) },
1259 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) },
1260 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) },
1261 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) },
1262 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) },
1263 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) },
1264 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1265 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1266 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
1267 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) },
1268 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) },
1269 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) },
1270 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1271 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1272 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1273 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1274 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1275 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
1276 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1277 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1278 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
1279 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) },
1280 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) },
1281 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) },
1282 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1283 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1284 { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_T91MT) },
1285 { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
1286 { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
1287 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
1288 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
1289 { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
1290 { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
1291 { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
1292 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
1293 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
1294 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
1295 { HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) },
1296 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) },
1297 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) },
1298 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) },
1299 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
1300 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
1301 { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH) },
1302 { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1) },
1303 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
1304 { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
1305 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) },
1306 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) },
1307 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) },
1308 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) },
1309 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
1310 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
1311 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
1312 { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
1313 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
1314 { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
1315 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
1316 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
1317 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) },
1318 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) },
1319 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) },
1320 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) },
1321 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) },
1322 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) },
1323 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) },
1324 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) },
1325 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) },
1326 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) },
1327 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
1328 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },
1329 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
1330 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) },
1331 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
1332 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) },
1333 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
1334 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
1335 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
1336 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) },
1337 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) },
1338 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) },
1339 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) },
1340 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
1341 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
1342 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) },
1343 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) },
1344 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) },
1345 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) },
1346 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
1347 { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
1348 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
1349 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) },
1350 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) },
1351 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) },
1352 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) },
1353 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) },
1354 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) },
1355 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) },
1356 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) },
1357 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) },
1358 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) },
1359 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) },
1360 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) },
1361 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) },
1362 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) },
1363 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) },
1364 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) },
1365 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) },
1366 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) },
1367 { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
1368 { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
1369 { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
1370 { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN) },
1371 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
1372 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
1373 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
1374 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
1375 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1376 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1377 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
1378 { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM, USB_DEVICE_ID_MTP) },
1379 { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, USB_DEVICE_ID_MTP_STM) },
1380 { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX, USB_DEVICE_ID_MTP_SITRONIX) },
1381 { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
1382 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
1383 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
1384 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) },
1385 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) },
1386 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
1387 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) },
1388 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
1389 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) },
1390 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
1391 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
1392 { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
1393 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
1394 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
1395 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
1396 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
1397 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
1398 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
1399 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
1400 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
1401 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
1402 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
1403 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
1404 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
1405 { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
1406
1407 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
1408 { }
1409 };
1410
1411 struct hid_dynid {
1412 struct list_head list;
1413 struct hid_device_id id;
1414 };
1415
1416 /**
1417 * store_new_id - add a new HID device ID to this driver and re-probe devices
1418 * @driver: target device driver
1419 * @buf: buffer for scanning device ID data
1420 * @count: input size
1421 *
1422 * Adds a new dynamic hid device ID to this driver,
1423 * and causes the driver to probe for all devices again.
1424 */
1425 static ssize_t store_new_id(struct device_driver *drv, const char *buf,
1426 size_t count)
1427 {
1428 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1429 struct hid_dynid *dynid;
1430 __u32 bus, vendor, product;
1431 unsigned long driver_data = 0;
1432 int ret;
1433
1434 ret = sscanf(buf, "%x %x %x %lx",
1435 &bus, &vendor, &product, &driver_data);
1436 if (ret < 3)
1437 return -EINVAL;
1438
1439 dynid = kzalloc(sizeof(*dynid), GFP_KERNEL);
1440 if (!dynid)
1441 return -ENOMEM;
1442
1443 dynid->id.bus = bus;
1444 dynid->id.vendor = vendor;
1445 dynid->id.product = product;
1446 dynid->id.driver_data = driver_data;
1447
1448 spin_lock(&hdrv->dyn_lock);
1449 list_add_tail(&dynid->list, &hdrv->dyn_list);
1450 spin_unlock(&hdrv->dyn_lock);
1451
1452 ret = 0;
1453 if (get_driver(&hdrv->driver)) {
1454 ret = driver_attach(&hdrv->driver);
1455 put_driver(&hdrv->driver);
1456 }
1457
1458 return ret ? : count;
1459 }
1460 static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
1461
1462 static void hid_free_dynids(struct hid_driver *hdrv)
1463 {
1464 struct hid_dynid *dynid, *n;
1465
1466 spin_lock(&hdrv->dyn_lock);
1467 list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) {
1468 list_del(&dynid->list);
1469 kfree(dynid);
1470 }
1471 spin_unlock(&hdrv->dyn_lock);
1472 }
1473
1474 static const struct hid_device_id *hid_match_device(struct hid_device *hdev,
1475 struct hid_driver *hdrv)
1476 {
1477 struct hid_dynid *dynid;
1478
1479 spin_lock(&hdrv->dyn_lock);
1480 list_for_each_entry(dynid, &hdrv->dyn_list, list) {
1481 if (hid_match_one_id(hdev, &dynid->id)) {
1482 spin_unlock(&hdrv->dyn_lock);
1483 return &dynid->id;
1484 }
1485 }
1486 spin_unlock(&hdrv->dyn_lock);
1487
1488 return hid_match_id(hdev, hdrv->id_table);
1489 }
1490
1491 static int hid_bus_match(struct device *dev, struct device_driver *drv)
1492 {
1493 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1494 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1495
1496 if (!hid_match_device(hdev, hdrv))
1497 return 0;
1498
1499 /* generic wants all non-blacklisted */
1500 if (!strncmp(hdrv->name, "generic-", 8))
1501 return !hid_match_id(hdev, hid_blacklist);
1502
1503 return 1;
1504 }
1505
1506 static int hid_device_probe(struct device *dev)
1507 {
1508 struct hid_driver *hdrv = container_of(dev->driver,
1509 struct hid_driver, driver);
1510 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1511 const struct hid_device_id *id;
1512 int ret = 0;
1513
1514 if (!hdev->driver) {
1515 id = hid_match_device(hdev, hdrv);
1516 if (id == NULL)
1517 return -ENODEV;
1518
1519 hdev->driver = hdrv;
1520 if (hdrv->probe) {
1521 ret = hdrv->probe(hdev, id);
1522 } else { /* default probe */
1523 ret = hid_parse(hdev);
1524 if (!ret)
1525 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
1526 }
1527 if (ret)
1528 hdev->driver = NULL;
1529 }
1530 return ret;
1531 }
1532
1533 static int hid_device_remove(struct device *dev)
1534 {
1535 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1536 struct hid_driver *hdrv = hdev->driver;
1537
1538 if (hdrv) {
1539 if (hdrv->remove)
1540 hdrv->remove(hdev);
1541 else /* default remove */
1542 hid_hw_stop(hdev);
1543 hdev->driver = NULL;
1544 }
1545
1546 return 0;
1547 }
1548
1549 static int hid_uevent(struct device *dev, struct kobj_uevent_env *env)
1550 {
1551 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1552
1553 if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X",
1554 hdev->bus, hdev->vendor, hdev->product))
1555 return -ENOMEM;
1556
1557 if (add_uevent_var(env, "HID_NAME=%s", hdev->name))
1558 return -ENOMEM;
1559
1560 if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys))
1561 return -ENOMEM;
1562
1563 if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq))
1564 return -ENOMEM;
1565
1566 if (add_uevent_var(env, "MODALIAS=hid:b%04Xv%08Xp%08X",
1567 hdev->bus, hdev->vendor, hdev->product))
1568 return -ENOMEM;
1569
1570 return 0;
1571 }
1572
1573 static struct bus_type hid_bus_type = {
1574 .name = "hid",
1575 .match = hid_bus_match,
1576 .probe = hid_device_probe,
1577 .remove = hid_device_remove,
1578 .uevent = hid_uevent,
1579 };
1580
1581 /* a list of devices that shouldn't be handled by HID core at all */
1582 static const struct hid_device_id hid_ignore_list[] = {
1583 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) },
1584 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) },
1585 { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) },
1586 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) },
1587 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) },
1588 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) },
1589 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) },
1590 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) },
1591 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) },
1592 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) },
1593 { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) },
1594 { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) },
1595 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)},
1596 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)},
1597 { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) },
1598 { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) },
1599 { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) },
1600 { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) },
1601 { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) },
1602 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) },
1603 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) },
1604 { HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) },
1605 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) },
1606 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
1607 { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
1608 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
1609 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
1610 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) },
1611 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) },
1612 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0003) },
1613 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) },
1614 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) },
1615 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) },
1616 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) },
1617 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) },
1618 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) },
1619 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) },
1620 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) },
1621 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) },
1622 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) },
1623 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) },
1624 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) },
1625 { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) },
1626 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) },
1627 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) },
1628 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) },
1629 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) },
1630 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) },
1631 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) },
1632 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) },
1633 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) },
1634 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) },
1635 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) },
1636 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) },
1637 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) },
1638 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) },
1639 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) },
1640 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) },
1641 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) },
1642 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) },
1643 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) },
1644 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) },
1645 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) },
1646 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) },
1647 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) },
1648 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) },
1649 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) },
1650 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) },
1651 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) },
1652 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) },
1653 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) },
1654 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) },
1655 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) },
1656 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) },
1657 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) },
1658 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) },
1659 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) },
1660 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) },
1661 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) },
1662 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) },
1663 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) },
1664 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) },
1665 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) },
1666 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) },
1667 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) },
1668 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) },
1669 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) },
1670 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) },
1671 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) },
1672 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) },
1673 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) },
1674 { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) },
1675 { HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_JESS_YUREX) },
1676 { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) },
1677 { HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) },
1678 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) },
1679 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) },
1680 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) },
1681 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) },
1682 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) },
1683 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) },
1684 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) },
1685 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) },
1686 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY1) },
1687 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) },
1688 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) },
1689 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) },
1690 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) },
1691 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) },
1692 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) },
1693 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) },
1694 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) },
1695 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) },
1696 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) },
1697 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) },
1698 { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) },
1699 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) },
1700 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) },
1701 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) },
1702 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) },
1703 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) },
1704 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) },
1705 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) },
1706 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) },
1707 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) },
1708 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) },
1709 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) },
1710 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) },
1711 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) },
1712 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
1713 { HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
1714 { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
1715 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) },
1716 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
1717 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },
1718 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) },
1719 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) },
1720 { HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) },
1721 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) },
1722 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) },
1723 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) },
1724 { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) },
1725 { }
1726 };
1727
1728 /**
1729 * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer
1730 *
1731 * There are composite devices for which we want to ignore only a certain
1732 * interface. This is a list of devices for which only the mouse interface will
1733 * be ignored. This allows a dedicated driver to take care of the interface.
1734 */
1735 static const struct hid_device_id hid_mouse_ignore_list[] = {
1736 /* appletouch driver */
1737 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1738 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1739 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1740 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1741 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1742 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1743 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1744 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1745 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1746 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1747 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1748 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1749 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1750 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
1751 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1752 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1753 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1754 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1755 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1756 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
1757 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1758 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1759 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
1760 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1761 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1762 { }
1763 };
1764
1765 static bool hid_ignore(struct hid_device *hdev)
1766 {
1767 switch (hdev->vendor) {
1768 case USB_VENDOR_ID_CODEMERCS:
1769 /* ignore all Code Mercenaries IOWarrior devices */
1770 if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST &&
1771 hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST)
1772 return true;
1773 break;
1774 case USB_VENDOR_ID_LOGITECH:
1775 if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST &&
1776 hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST)
1777 return true;
1778 break;
1779 case USB_VENDOR_ID_SOUNDGRAPH:
1780 if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST &&
1781 hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST)
1782 return true;
1783 break;
1784 case USB_VENDOR_ID_HANWANG:
1785 if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST &&
1786 hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST)
1787 return true;
1788 break;
1789 }
1790
1791 if (hdev->type == HID_TYPE_USBMOUSE &&
1792 hid_match_id(hdev, hid_mouse_ignore_list))
1793 return true;
1794
1795 return !!hid_match_id(hdev, hid_ignore_list);
1796 }
1797
1798 int hid_add_device(struct hid_device *hdev)
1799 {
1800 static atomic_t id = ATOMIC_INIT(0);
1801 int ret;
1802
1803 if (WARN_ON(hdev->status & HID_STAT_ADDED))
1804 return -EBUSY;
1805
1806 /* we need to kill them here, otherwise they will stay allocated to
1807 * wait for coming driver */
1808 if (!(hdev->quirks & HID_QUIRK_NO_IGNORE)
1809 && (hid_ignore(hdev) || (hdev->quirks & HID_QUIRK_IGNORE)))
1810 return -ENODEV;
1811
1812 /* XXX hack, any other cleaner solution after the driver core
1813 * is converted to allow more than 20 bytes as the device name? */
1814 dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
1815 hdev->vendor, hdev->product, atomic_inc_return(&id));
1816
1817 hid_debug_register(hdev, dev_name(&hdev->dev));
1818 ret = device_add(&hdev->dev);
1819 if (!ret)
1820 hdev->status |= HID_STAT_ADDED;
1821 else
1822 hid_debug_unregister(hdev);
1823
1824 return ret;
1825 }
1826 EXPORT_SYMBOL_GPL(hid_add_device);
1827
1828 /**
1829 * hid_allocate_device - allocate new hid device descriptor
1830 *
1831 * Allocate and initialize hid device, so that hid_destroy_device might be
1832 * used to free it.
1833 *
1834 * New hid_device pointer is returned on success, otherwise ERR_PTR encoded
1835 * error value.
1836 */
1837 struct hid_device *hid_allocate_device(void)
1838 {
1839 struct hid_device *hdev;
1840 unsigned int i;
1841 int ret = -ENOMEM;
1842
1843 hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
1844 if (hdev == NULL)
1845 return ERR_PTR(ret);
1846
1847 device_initialize(&hdev->dev);
1848 hdev->dev.release = hid_device_release;
1849 hdev->dev.bus = &hid_bus_type;
1850
1851 hdev->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS,
1852 sizeof(struct hid_collection), GFP_KERNEL);
1853 if (hdev->collection == NULL)
1854 goto err;
1855 hdev->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
1856
1857 for (i = 0; i < HID_REPORT_TYPES; i++)
1858 INIT_LIST_HEAD(&hdev->report_enum[i].report_list);
1859
1860 init_waitqueue_head(&hdev->debug_wait);
1861 INIT_LIST_HEAD(&hdev->debug_list);
1862
1863 return hdev;
1864 err:
1865 put_device(&hdev->dev);
1866 return ERR_PTR(ret);
1867 }
1868 EXPORT_SYMBOL_GPL(hid_allocate_device);
1869
1870 static void hid_remove_device(struct hid_device *hdev)
1871 {
1872 if (hdev->status & HID_STAT_ADDED) {
1873 device_del(&hdev->dev);
1874 hid_debug_unregister(hdev);
1875 hdev->status &= ~HID_STAT_ADDED;
1876 }
1877 }
1878
1879 /**
1880 * hid_destroy_device - free previously allocated device
1881 *
1882 * @hdev: hid device
1883 *
1884 * If you allocate hid_device through hid_allocate_device, you should ever
1885 * free by this function.
1886 */
1887 void hid_destroy_device(struct hid_device *hdev)
1888 {
1889 hid_remove_device(hdev);
1890 put_device(&hdev->dev);
1891 }
1892 EXPORT_SYMBOL_GPL(hid_destroy_device);
1893
1894 int __hid_register_driver(struct hid_driver *hdrv, struct module *owner,
1895 const char *mod_name)
1896 {
1897 int ret;
1898
1899 hdrv->driver.name = hdrv->name;
1900 hdrv->driver.bus = &hid_bus_type;
1901 hdrv->driver.owner = owner;
1902 hdrv->driver.mod_name = mod_name;
1903
1904 INIT_LIST_HEAD(&hdrv->dyn_list);
1905 spin_lock_init(&hdrv->dyn_lock);
1906
1907 ret = driver_register(&hdrv->driver);
1908 if (ret)
1909 return ret;
1910
1911 ret = driver_create_file(&hdrv->driver, &driver_attr_new_id);
1912 if (ret)
1913 driver_unregister(&hdrv->driver);
1914
1915 return ret;
1916 }
1917 EXPORT_SYMBOL_GPL(__hid_register_driver);
1918
1919 void hid_unregister_driver(struct hid_driver *hdrv)
1920 {
1921 driver_remove_file(&hdrv->driver, &driver_attr_new_id);
1922 driver_unregister(&hdrv->driver);
1923 hid_free_dynids(hdrv);
1924 }
1925 EXPORT_SYMBOL_GPL(hid_unregister_driver);
1926
1927 int hid_check_keys_pressed(struct hid_device *hid)
1928 {
1929 struct hid_input *hidinput;
1930 int i;
1931
1932 if (!(hid->claimed & HID_CLAIMED_INPUT))
1933 return 0;
1934
1935 list_for_each_entry(hidinput, &hid->inputs, list) {
1936 for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++)
1937 if (hidinput->input->key[i])
1938 return 1;
1939 }
1940
1941 return 0;
1942 }
1943
1944 EXPORT_SYMBOL_GPL(hid_check_keys_pressed);
1945
1946 static int __init hid_init(void)
1947 {
1948 int ret;
1949
1950 if (hid_debug)
1951 printk(KERN_WARNING "HID: hid_debug is now used solely for parser and driver debugging.\n"
1952 "HID: debugfs is now used for inspecting the device (report descriptor, reports)\n");
1953
1954 ret = bus_register(&hid_bus_type);
1955 if (ret) {
1956 printk(KERN_ERR "HID: can't register hid bus\n");
1957 goto err;
1958 }
1959
1960 ret = hidraw_init();
1961 if (ret)
1962 goto err_bus;
1963
1964 hid_debug_init();
1965
1966 return 0;
1967 err_bus:
1968 bus_unregister(&hid_bus_type);
1969 err:
1970 return ret;
1971 }
1972
1973 static void __exit hid_exit(void)
1974 {
1975 hid_debug_exit();
1976 hidraw_exit();
1977 bus_unregister(&hid_bus_type);
1978 }
1979
1980 module_init(hid_init);
1981 module_exit(hid_exit);
1982
1983 MODULE_AUTHOR("Andreas Gal");
1984 MODULE_AUTHOR("Vojtech Pavlik");
1985 MODULE_AUTHOR("Jiri Kosina");
1986 MODULE_LICENSE(DRIVER_LICENSE);
1987
kernel source for telekom puls (alcatel/mediatek)