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HID: ntrig: change default value of logical/physical width/height to 1
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / hid / hid-core.c
CommitLineData
dde5845a 1/*
229695e5 2 * HID support for Linux
dde5845a
JK		 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
6b1968d5 7 * Copyright (c) 2006-2012 Jiri Kosina
dde5845a
JK		 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
4291ee30
JP		 17#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
18
dde5845a
JK		 19#include <linux/module.h>
20#include <linux/slab.h>
21#include <linux/init.h>
22#include <linux/kernel.h>
dde5845a
JK		 23#include <linux/list.h>
24#include <linux/mm.h>
dde5845a
JK		 25#include <linux/spinlock.h>
26#include <asm/unaligned.h>
27#include <asm/byteorder.h>
28#include <linux/input.h>
29#include <linux/wait.h>
47a80edb 30#include <linux/vmalloc.h>
c4124c9b 31#include <linux/sched.h>
4ea54542 32#include <linux/semaphore.h>
dde5845a 33
dde5845a
JK		 34#include <linux/hid.h>
35#include <linux/hiddev.h>
c080d89a 36#include <linux/hid-debug.h>
86166b7b 37#include <linux/hidraw.h>
dde5845a 38
5f22a799
JS		 39#include "hid-ids.h"
40
dde5845a
JK		 41/*
42 * Version Information
43 */
44
53149801 45#define DRIVER_DESC "HID core driver"
dde5845a
JK		 46#define DRIVER_LICENSE "GPL"
47
58037eb9 48int hid_debug = 0;
377e10fb 49module_param_named(debug, hid_debug, int, 0600);
cd667ce2 50MODULE_PARM_DESC(debug, "toggle HID debugging messages");
58037eb9 51EXPORT_SYMBOL_GPL(hid_debug);
58037eb9 52
6b1968d5
JK		 53static int hid_ignore_special_drivers = 0;
54module_param_named(ignore_special_drivers, hid_ignore_special_drivers, int, 0600);
55MODULE_PARM_DESC(debug, "Ignore any special drivers and handle all devices by generic driver");
56
dde5845a
JK		 57/*
58 * Register a new report for a device.
59 */
60
90a006ab 61struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
dde5845a
JK		 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
a3789a17
JP		 69 report = kzalloc(sizeof(struct hid_report), GFP_KERNEL);
70 if (!report)
dde5845a
JK		 71 return NULL;
72
73 if (id != 0)
74 report_enum->numbered = 1;
75
76 report->id = id;
77 report->type = type;
78 report->size = 0;
79 report->device = device;
80 report_enum->report_id_hash[id] = report;
81
82 list_add_tail(&report->list, &report_enum->report_list);
83
84 return report;
85}
90a006ab 86EXPORT_SYMBOL_GPL(hid_register_report);
dde5845a
JK		 87
88/*
89 * Register a new field for this report.
90 */
91
92static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values)
93{
94 struct hid_field *field;
95
96 if (report->maxfield == HID_MAX_FIELDS) {
8c3d52fc 97 hid_err(report->device, "too many fields in report\n");
dde5845a
JK		 98 return NULL;
99 }
100
a3789a17
JP		 101 field = kzalloc((sizeof(struct hid_field) +
102 usages * sizeof(struct hid_usage) +
103 values * sizeof(unsigned)), GFP_KERNEL);
104 if (!field)
105 return NULL;
dde5845a
JK		 106
107 field->index = report->maxfield++;
108 report->field[field->index] = field;
109 field->usage = (struct hid_usage *)(field + 1);
282bfd4c 110 field->value = (s32 *)(field->usage + usages);
dde5845a
JK		 111 field->report = report;
112
113 return field;
114}
115
116/*
117 * Open a collection. The type/usage is pushed on the stack.
118 */
119
120static int open_collection(struct hid_parser *parser, unsigned type)
121{
122 struct hid_collection *collection;
123 unsigned usage;
124
125 usage = parser->local.usage[0];
126
127 if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) {
8c3d52fc 128 hid_err(parser->device, "collection stack overflow\n");
a6fbaacf 129 return -EINVAL;
dde5845a
JK		 130 }
131
132 if (parser->device->maxcollection == parser->device->collection_size) {
133 collection = kmalloc(sizeof(struct hid_collection) *
134 parser->device->collection_size * 2, GFP_KERNEL);
135 if (collection == NULL) {
8c3d52fc 136 hid_err(parser->device, "failed to reallocate collection array\n");
a6fbaacf 137 return -ENOMEM;
dde5845a
JK		 138 }
139 memcpy(collection, parser->device->collection,
140 sizeof(struct hid_collection) *
141 parser->device->collection_size);
142 memset(collection + parser->device->collection_size, 0,
143 sizeof(struct hid_collection) *
144 parser->device->collection_size);
145 kfree(parser->device->collection);
146 parser->device->collection = collection;
147 parser->device->collection_size *= 2;
148 }
149
150 parser->collection_stack[parser->collection_stack_ptr++] =
151 parser->device->maxcollection;
152
153 collection = parser->device->collection +
154 parser->device->maxcollection++;
155 collection->type = type;
156 collection->usage = usage;
157 collection->level = parser->collection_stack_ptr - 1;
158
159 if (type == HID_COLLECTION_APPLICATION)
160 parser->device->maxapplication++;
161
162 return 0;
163}
164
165/*
166 * Close a collection.
167 */
168
169static int close_collection(struct hid_parser *parser)
170{
171 if (!parser->collection_stack_ptr) {
8c3d52fc 172 hid_err(parser->device, "collection stack underflow\n");
a6fbaacf 173 return -EINVAL;
dde5845a
JK		 174 }
175 parser->collection_stack_ptr--;
176 return 0;
177}
178
179/*
180 * Climb up the stack, search for the specified collection type
181 * and return the usage.
182 */
183
184static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type)
185{
504499f2 186 struct hid_collection *collection = parser->device->collection;
dde5845a 187 int n;
504499f2
JP		 188
189 for (n = parser->collection_stack_ptr - 1; n >= 0; n--) {
190 unsigned index = parser->collection_stack[n];
191 if (collection[index].type == type)
192 return collection[index].usage;
193 }
dde5845a
JK		 194 return 0; /* we know nothing about this usage type */
195}
196
197/*
198 * Add a usage to the temporary parser table.
199 */
200
201static int hid_add_usage(struct hid_parser *parser, unsigned usage)
202{
203 if (parser->local.usage_index >= HID_MAX_USAGES) {
8c3d52fc 204 hid_err(parser->device, "usage index exceeded\n");
dde5845a
JK		 205 return -1;
206 }
207 parser->local.usage[parser->local.usage_index] = usage;
208 parser->local.collection_index[parser->local.usage_index] =
209 parser->collection_stack_ptr ?
210 parser->collection_stack[parser->collection_stack_ptr - 1] : 0;
211 parser->local.usage_index++;
212 return 0;
213}
214
215/*
216 * Register a new field for this report.
217 */
218
219static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags)
220{
221 struct hid_report *report;
222 struct hid_field *field;
223 int usages;
224 unsigned offset;
225 int i;
226
a3789a17
JP		 227 report = hid_register_report(parser->device, report_type, parser->global.report_id);
228 if (!report) {
8c3d52fc 229 hid_err(parser->device, "hid_register_report failed\n");
dde5845a
JK		 230 return -1;
231 }
232
bb2e1976 233 /* Handle both signed and unsigned cases properly */
0cd516c2 234 if ((parser->global.logical_minimum < 0 &&
235 parser->global.logical_maximum <
236 parser->global.logical_minimum) ||
237 (parser->global.logical_minimum >= 0 &&
238 (__u32)parser->global.logical_maximum <
239 (__u32)parser->global.logical_minimum)) {
240 dbg_hid("logical range invalid 0x%x 0x%x\n",
241 parser->global.logical_minimum,
242 parser->global.logical_maximum);
dde5845a
JK		 243 return -1;
244 }
245
246 offset = report->size;
247 report->size += parser->global.report_size * parser->global.report_count;
248
249 if (!parser->local.usage_index) /* Ignore padding fields */
250 return 0;
251
252 usages = max_t(int, parser->local.usage_index, parser->global.report_count);
253
a3789a17
JP		 254 field = hid_register_field(report, usages, parser->global.report_count);
255 if (!field)
dde5845a
JK		 256 return 0;
257
258 field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
259 field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
260 field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
261
262 for (i = 0; i < usages; i++) {
263 int j = i;
264 /* Duplicate the last usage we parsed if we have excess values */
265 if (i >= parser->local.usage_index)
266 j = parser->local.usage_index - 1;
267 field->usage[i].hid = parser->local.usage[j];
268 field->usage[i].collection_index =
269 parser->local.collection_index[j];
270 }
271
272 field->maxusage = usages;
273 field->flags = flags;
274 field->report_offset = offset;
275 field->report_type = report_type;
276 field->report_size = parser->global.report_size;
277 field->report_count = parser->global.report_count;
278 field->logical_minimum = parser->global.logical_minimum;
279 field->logical_maximum = parser->global.logical_maximum;
280 field->physical_minimum = parser->global.physical_minimum;
281 field->physical_maximum = parser->global.physical_maximum;
282 field->unit_exponent = parser->global.unit_exponent;
283 field->unit = parser->global.unit;
284
285 return 0;
286}
287
288/*
289 * Read data value from item.
290 */
291
292static u32 item_udata(struct hid_item *item)
293{
294 switch (item->size) {
880d29f1
JS		 295 case 1: return item->data.u8;
296 case 2: return item->data.u16;
297 case 4: return item->data.u32;
dde5845a
JK		 298 }
299 return 0;
300}
301
302static s32 item_sdata(struct hid_item *item)
303{
304 switch (item->size) {
880d29f1
JS		 305 case 1: return item->data.s8;
306 case 2: return item->data.s16;
307 case 4: return item->data.s32;
dde5845a
JK		 308 }
309 return 0;
310}
311
312/*
313 * Process a global item.
314 */
315
316static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
317{
318 switch (item->tag) {
880d29f1 319 case HID_GLOBAL_ITEM_TAG_PUSH:
dde5845a 320
880d29f1 321 if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
8c3d52fc 322 hid_err(parser->device, "global environment stack overflow\n");
880d29f1
JS		 323 return -1;
324 }
dde5845a 325
880d29f1
JS		 326 memcpy(parser->global_stack + parser->global_stack_ptr++,
327 &parser->global, sizeof(struct hid_global));
328 return 0;
dde5845a 329
880d29f1 330 case HID_GLOBAL_ITEM_TAG_POP:
dde5845a 331
880d29f1 332 if (!parser->global_stack_ptr) {
8c3d52fc 333 hid_err(parser->device, "global environment stack underflow\n");
880d29f1
JS		 334 return -1;
335 }
dde5845a 336
880d29f1
JS		 337 memcpy(&parser->global, parser->global_stack +
338 --parser->global_stack_ptr, sizeof(struct hid_global));
339 return 0;
dde5845a 340
880d29f1
JS		 341 case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
342 parser->global.usage_page = item_udata(item);
343 return 0;
dde5845a 344
880d29f1
JS		 345 case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
346 parser->global.logical_minimum = item_sdata(item);
347 return 0;
dde5845a 348
880d29f1
JS		 349 case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
350 if (parser->global.logical_minimum < 0)
351 parser->global.logical_maximum = item_sdata(item);
352 else
353 parser->global.logical_maximum = item_udata(item);
354 return 0;
dde5845a 355
880d29f1
JS		 356 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
357 parser->global.physical_minimum = item_sdata(item);
358 return 0;
dde5845a 359
880d29f1
JS		 360 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
361 if (parser->global.physical_minimum < 0)
362 parser->global.physical_maximum = item_sdata(item);
363 else
364 parser->global.physical_maximum = item_udata(item);
365 return 0;
dde5845a 366
880d29f1
JS		 367 case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
368 parser->global.unit_exponent = item_sdata(item);
369 return 0;
dde5845a 370
880d29f1
JS		 371 case HID_GLOBAL_ITEM_TAG_UNIT:
372 parser->global.unit = item_udata(item);
373 return 0;
dde5845a 374
880d29f1
JS		 375 case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
376 parser->global.report_size = item_udata(item);
23408f95 377 if (parser->global.report_size > 128) {
8c3d52fc 378 hid_err(parser->device, "invalid report_size %d\n",
880d29f1
JS		 379 parser->global.report_size);
380 return -1;
381 }
382 return 0;
dde5845a 383
880d29f1
JS		 384 case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
385 parser->global.report_count = item_udata(item);
386 if (parser->global.report_count > HID_MAX_USAGES) {
8c3d52fc 387 hid_err(parser->device, "invalid report_count %d\n",
880d29f1
JS		 388 parser->global.report_count);
389 return -1;
390 }
391 return 0;
dde5845a 392
880d29f1
JS		 393 case HID_GLOBAL_ITEM_TAG_REPORT_ID:
394 parser->global.report_id = item_udata(item);
395 if (parser->global.report_id == 0) {
8c3d52fc 396 hid_err(parser->device, "report_id 0 is invalid\n");
dde5845a 397 return -1;
880d29f1
JS		 398 }
399 return 0;
400
401 default:
8c3d52fc 402 hid_err(parser->device, "unknown global tag 0x%x\n", item->tag);
880d29f1 403 return -1;
dde5845a
JK		 404 }
405}
406
407/*
408 * Process a local item.
409 */
410
411static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
412{
413 __u32 data;
414 unsigned n;
415
dde5845a
JK		 416 data = item_udata(item);
417
418 switch (item->tag) {
880d29f1
JS		 419 case HID_LOCAL_ITEM_TAG_DELIMITER:
420
421 if (data) {
422 /*
423 * We treat items before the first delimiter
424 * as global to all usage sets (branch 0).
425 * In the moment we process only these global
426 * items and the first delimiter set.
427 */
428 if (parser->local.delimiter_depth != 0) {
8c3d52fc 429 hid_err(parser->device, "nested delimiters\n");
880d29f1 430 return -1;
dde5845a 431 }
880d29f1
JS		 432 parser->local.delimiter_depth++;
433 parser->local.delimiter_branch++;
434 } else {
435 if (parser->local.delimiter_depth < 1) {
8c3d52fc 436 hid_err(parser->device, "bogus close delimiter\n");
880d29f1 437 return -1;
dde5845a 438 }
880d29f1
JS		 439 parser->local.delimiter_depth--;
440 }
441 return 1;
dde5845a 442
880d29f1 443 case HID_LOCAL_ITEM_TAG_USAGE:
dde5845a 444
880d29f1
JS		 445 if (parser->local.delimiter_branch > 1) {
446 dbg_hid("alternative usage ignored\n");
447 return 0;
448 }
dde5845a 449
880d29f1
JS		 450 if (item->size <= 2)
451 data = (parser->global.usage_page << 16) + data;
dde5845a 452
880d29f1 453 return hid_add_usage(parser, data);
dde5845a 454
880d29f1 455 case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
dde5845a 456
880d29f1
JS		 457 if (parser->local.delimiter_branch > 1) {
458 dbg_hid("alternative usage ignored\n");
dde5845a 459 return 0;
880d29f1 460 }
dde5845a 461
880d29f1
JS		 462 if (item->size <= 2)
463 data = (parser->global.usage_page << 16) + data;
dde5845a 464
880d29f1
JS		 465 parser->local.usage_minimum = data;
466 return 0;
dde5845a 467
880d29f1 468 case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
dde5845a 469
880d29f1
JS		 470 if (parser->local.delimiter_branch > 1) {
471 dbg_hid("alternative usage ignored\n");
dde5845a 472 return 0;
880d29f1 473 }
dde5845a 474
880d29f1
JS		 475 if (item->size <= 2)
476 data = (parser->global.usage_page << 16) + data;
dde5845a 477
880d29f1
JS		 478 for (n = parser->local.usage_minimum; n <= data; n++)
479 if (hid_add_usage(parser, n)) {
480 dbg_hid("hid_add_usage failed\n");
481 return -1;
482 }
483 return 0;
484
485 default:
486
487 dbg_hid("unknown local item tag 0x%x\n", item->tag);
488 return 0;
dde5845a
JK		 489 }
490 return 0;
491}
492
493/*
494 * Process a main item.
495 */
496
497static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
498{
499 __u32 data;
500 int ret;
501
502 data = item_udata(item);
503
504 switch (item->tag) {
880d29f1
JS		 505 case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
506 ret = open_collection(parser, data & 0xff);
507 break;
508 case HID_MAIN_ITEM_TAG_END_COLLECTION:
509 ret = close_collection(parser);
510 break;
511 case HID_MAIN_ITEM_TAG_INPUT:
512 ret = hid_add_field(parser, HID_INPUT_REPORT, data);
513 break;
514 case HID_MAIN_ITEM_TAG_OUTPUT:
515 ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
516 break;
517 case HID_MAIN_ITEM_TAG_FEATURE:
518 ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
519 break;
520 default:
8c3d52fc 521 hid_err(parser->device, "unknown main item tag 0x%x\n", item->tag);
880d29f1 522 ret = 0;
dde5845a
JK		 523 }
524
525 memset(&parser->local, 0, sizeof(parser->local)); /* Reset the local parser environment */
526
527 return ret;
528}
529
530/*
531 * Process a reserved item.
532 */
533
534static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
535{
58037eb9 536 dbg_hid("reserved item type, tag 0x%x\n", item->tag);
dde5845a
JK		 537 return 0;
538}
539
540/*
541 * Free a report and all registered fields. The field->usage and
542 * field->value table's are allocated behind the field, so we need
543 * only to free(field) itself.
544 */
545
546static void hid_free_report(struct hid_report *report)
547{
548 unsigned n;
549
550 for (n = 0; n < report->maxfield; n++)
551 kfree(report->field[n]);
552 kfree(report);
553}
554
555/*
a7197c2e
HR		 556 * Close report. This function returns the device
557 * state to the point prior to hid_open_report().
dde5845a 558 */
a7197c2e 559static void hid_close_report(struct hid_device *device)
dde5845a 560{
85cdaf52 561 unsigned i, j;
dde5845a
JK		 562
563 for (i = 0; i < HID_REPORT_TYPES; i++) {
564 struct hid_report_enum *report_enum = device->report_enum + i;
565
566 for (j = 0; j < 256; j++) {
567 struct hid_report *report = report_enum->report_id_hash[j];
568 if (report)
569 hid_free_report(report);
570 }
a7197c2e
HR		 571 memset(report_enum, 0, sizeof(*report_enum));
572 INIT_LIST_HEAD(&report_enum->report_list);
dde5845a
JK		 573 }
574
575 kfree(device->rdesc);
a7197c2e
HR		 576 device->rdesc = NULL;
577 device->rsize = 0;
578
767fe787 579 kfree(device->collection);
a7197c2e
HR		 580 device->collection = NULL;
581 device->collection_size = 0;
582 device->maxcollection = 0;
583 device->maxapplication = 0;
584
585 device->status &= ~HID_STAT_PARSED;
586}
587
588/*
589 * Free a device structure, all reports, and all fields.
590 */
591
592static void hid_device_release(struct device *dev)
593{
594 struct hid_device *hid = container_of(dev, struct hid_device, dev);
595
596 hid_close_report(hid);
597 kfree(hid->dev_rdesc);
598 kfree(hid);
dde5845a
JK		 599}
600
601/*
602 * Fetch a report description item from the data stream. We support long
603 * items, though they are not used yet.
604 */
605
606static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
607{
608 u8 b;
609
610 if ((end - start) <= 0)
611 return NULL;
612
613 b = *start++;
614
615 item->type = (b >> 2) & 3;
616 item->tag = (b >> 4) & 15;
617
618 if (item->tag == HID_ITEM_TAG_LONG) {
619
620 item->format = HID_ITEM_FORMAT_LONG;
621
622 if ((end - start) < 2)
623 return NULL;
624
625 item->size = *start++;
626 item->tag = *start++;
627
628 if ((end - start) < item->size)
629 return NULL;
630
631 item->data.longdata = start;
632 start += item->size;
633 return start;
634 }
635
636 item->format = HID_ITEM_FORMAT_SHORT;
637 item->size = b & 3;
638
639 switch (item->size) {
880d29f1
JS		 640 case 0:
641 return start;
dde5845a 642
880d29f1
JS		 643 case 1:
644 if ((end - start) < 1)
645 return NULL;
646 item->data.u8 = *start++;
647 return start;
648
649 case 2:
650 if ((end - start) < 2)
651 return NULL;
652 item->data.u16 = get_unaligned_le16(start);
653 start = (__u8 *)((__le16 *)start + 1);
654 return start;
655
656 case 3:
657 item->size++;
658 if ((end - start) < 4)
659 return NULL;
660 item->data.u32 = get_unaligned_le32(start);
661 start = (__u8 *)((__le32 *)start + 1);
662 return start;
dde5845a
JK		 663 }
664
665 return NULL;
666}
667
734c6609
HR		 668static void hid_scan_usage(struct hid_device *hid, u32 usage)
669{
4fa3a583
HR		 670 if (usage == HID_DG_CONTACTID)
671 hid->group = HID_GROUP_MULTITOUCH;
734c6609
HR		 672}
673
674/*
675 * Scan a report descriptor before the device is added to the bus.
676 * Sets device groups and other properties that determine what driver
677 * to load.
678 */
679static int hid_scan_report(struct hid_device *hid)
680{
681 unsigned int page = 0, delim = 0;
682 __u8 *start = hid->dev_rdesc;
683 __u8 *end = start + hid->dev_rsize;
684 unsigned int u, u_min = 0, u_max = 0;
685 struct hid_item item;
686
687 hid->group = HID_GROUP_GENERIC;
688 while ((start = fetch_item(start, end, &item)) != NULL) {
689 if (item.format != HID_ITEM_FORMAT_SHORT)
690 return -EINVAL;
691 if (item.type == HID_ITEM_TYPE_GLOBAL) {
692 if (item.tag == HID_GLOBAL_ITEM_TAG_USAGE_PAGE)
693 page = item_udata(&item) << 16;
694 } else if (item.type == HID_ITEM_TYPE_LOCAL) {
695 if (delim > 1)
696 break;
697 u = item_udata(&item);
698 if (item.size <= 2)
699 u += page;
700 switch (item.tag) {
701 case HID_LOCAL_ITEM_TAG_DELIMITER:
702 delim += !!u;
703 break;
704 case HID_LOCAL_ITEM_TAG_USAGE:
705 hid_scan_usage(hid, u);
706 break;
707 case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
708 u_min = u;
709 break;
710 case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
711 u_max = u;
712 for (u = u_min; u <= u_max; u++)
713 hid_scan_usage(hid, u);
714 break;
715 }
716 }
717 }
718
719 return 0;
720}
721
85cdaf52
JS		 722/**
723 * hid_parse_report - parse device report
724 *
725 * @device: hid device
726 * @start: report start
727 * @size: report size
728 *
a7197c2e
HR		 729 * Allocate the device report as read by the bus driver. This function should
730 * only be called from parse() in ll drivers.
731 */
732int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size)
733{
734 hid->dev_rdesc = kmemdup(start, size, GFP_KERNEL);
735 if (!hid->dev_rdesc)
736 return -ENOMEM;
737 hid->dev_rsize = size;
738 return 0;
739}
740EXPORT_SYMBOL_GPL(hid_parse_report);
741
742/**
743 * hid_open_report - open a driver-specific device report
744 *
745 * @device: hid device
746 *
dde5845a
JK		 747 * Parse a report description into a hid_device structure. Reports are
748 * enumerated, fields are attached to these reports.
85cdaf52 749 * 0 returned on success, otherwise nonzero error value.
a7197c2e
HR		 750 *
751 * This function (or the equivalent hid_parse() macro) should only be
752 * called from probe() in drivers, before starting the device.
dde5845a 753 */
a7197c2e 754int hid_open_report(struct hid_device *device)
dde5845a 755{
dde5845a
JK		 756 struct hid_parser *parser;
757 struct hid_item item;
a7197c2e
HR		 758 unsigned int size;
759 __u8 *start;
dde5845a 760 __u8 *end;
85cdaf52 761 int ret;
dde5845a
JK		 762 static int (*dispatch_type[])(struct hid_parser *parser,
763 struct hid_item *item) = {
764 hid_parser_main,
765 hid_parser_global,
766 hid_parser_local,
767 hid_parser_reserved
768 };
769
a7197c2e
HR		 770 if (WARN_ON(device->status & HID_STAT_PARSED))
771 return -EBUSY;
772
773 start = device->dev_rdesc;
774 if (WARN_ON(!start))
775 return -ENODEV;
776 size = device->dev_rsize;
777
c500c971 778 if (device->driver->report_fixup)
73e4008d 779 start = device->driver->report_fixup(device, start, &size);
c500c971 780
1721a238 781 device->rdesc = kmemdup(start, size, GFP_KERNEL);
85cdaf52
JS		 782 if (device->rdesc == NULL)
783 return -ENOMEM;
dde5845a
JK		 784 device->rsize = size;
785
fe258020 786 parser = vzalloc(sizeof(struct hid_parser));
85cdaf52
JS		 787 if (!parser) {
788 ret = -ENOMEM;
789 goto err;
dde5845a 790 }
85cdaf52 791
dde5845a
JK		 792 parser->device = device;
793
794 end = start + size;
a7197c2e
HR		 795
796 device->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS,
797 sizeof(struct hid_collection), GFP_KERNEL);
798 if (!device->collection) {
799 ret = -ENOMEM;
800 goto err;
801 }
802 device->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
803
85cdaf52 804 ret = -EINVAL;
dde5845a
JK		 805 while ((start = fetch_item(start, end, &item)) != NULL) {
806
807 if (item.format != HID_ITEM_FORMAT_SHORT) {
8c3d52fc 808 hid_err(device, "unexpected long global item\n");
85cdaf52 809 goto err;
dde5845a
JK		 810 }
811
812 if (dispatch_type[item.type](parser, &item)) {
8c3d52fc 813 hid_err(device, "item %u %u %u %u parsing failed\n",
4291ee30
JP		 814 item.format, (unsigned)item.size,
815 (unsigned)item.type, (unsigned)item.tag);
85cdaf52 816 goto err;
dde5845a
JK		 817 }
818
819 if (start == end) {
820 if (parser->collection_stack_ptr) {
8c3d52fc 821 hid_err(device, "unbalanced collection at end of report description\n");
85cdaf52 822 goto err;
dde5845a
JK		 823 }
824 if (parser->local.delimiter_depth) {
8c3d52fc 825 hid_err(device, "unbalanced delimiter at end of report description\n");
85cdaf52 826 goto err;
dde5845a 827 }
47a80edb 828 vfree(parser);
a7197c2e 829 device->status |= HID_STAT_PARSED;
85cdaf52 830 return 0;
dde5845a
JK		 831 }
832 }
833
8c3d52fc 834 hid_err(device, "item fetching failed at offset %d\n", (int)(end - start));
85cdaf52 835err:
47a80edb 836 vfree(parser);
a7197c2e 837 hid_close_report(device);
85cdaf52 838 return ret;
dde5845a 839}
a7197c2e 840EXPORT_SYMBOL_GPL(hid_open_report);
dde5845a
JK		 841
842/*
843 * Convert a signed n-bit integer to signed 32-bit integer. Common
844 * cases are done through the compiler, the screwed things has to be
845 * done by hand.
846 */
847
848static s32 snto32(__u32 value, unsigned n)
849{
850 switch (n) {
880d29f1
JS		 851 case 8: return ((__s8)value);
852 case 16: return ((__s16)value);
853 case 32: return ((__s32)value);
dde5845a
JK		 854 }
855 return value & (1 << (n - 1)) ? value | (-1 << n) : value;
856}
857
858/*
859 * Convert a signed 32-bit integer to a signed n-bit integer.
860 */
861
862static u32 s32ton(__s32 value, unsigned n)
863{
864 s32 a = value >> (n - 1);
865 if (a && a != -1)
866 return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
867 return value & ((1 << n) - 1);
868}
869
870/*
871 * Extract/implement a data field from/to a little endian report (bit array).
872 *
873 * Code sort-of follows HID spec:
874 * http://www.usb.org/developers/devclass_docs/HID1_11.pdf
875 *
876 * While the USB HID spec allows unlimited length bit fields in "report
877 * descriptors", most devices never use more than 16 bits.
878 * One model of UPS is claimed to report "LINEV" as a 32-bit field.
879 * Search linux-kernel and linux-usb-devel archives for "hid-core extract".
880 */
881
16ee4cc8
JP		 882static __u32 extract(const struct hid_device *hid, __u8 *report,
883 unsigned offset, unsigned n)
dde5845a
JK		 884{
885 u64 x;
886
c4124c9b 887 if (n > 32)
4291ee30
JP		 888 hid_warn(hid, "extract() called with n (%d) > 32! (%s)\n",
889 n, current->comm);
dde5845a
JK		 890
891 report += offset >> 3; /* adjust byte index */
229695e5 892 offset &= 7; /* now only need bit offset into one byte */
c105068f 893 x = get_unaligned_le64(report);
229695e5 894 x = (x >> offset) & ((1ULL << n) - 1); /* extract bit field */
dde5845a
JK		 895 return (u32) x;
896}
897
898/*
899 * "implement" : set bits in a little endian bit stream.
900 * Same concepts as "extract" (see comments above).
901 * The data mangled in the bit stream remains in little endian
902 * order the whole time. It make more sense to talk about
903 * endianness of register values by considering a register
904 * a "cached" copy of the little endiad bit stream.
905 */
16ee4cc8
JP		 906static void implement(const struct hid_device *hid, __u8 *report,
907 unsigned offset, unsigned n, __u32 value)
dde5845a 908{
6f0168d2 909 u64 x;
dde5845a
JK		 910 u64 m = (1ULL << n) - 1;
911
c4124c9b 912 if (n > 32)
4291ee30
JP		 913 hid_warn(hid, "%s() called with n (%d) > 32! (%s)\n",
914 __func__, n, current->comm);
dde5845a 915
c4124c9b 916 if (value > m)
4291ee30
JP		 917 hid_warn(hid, "%s() called with too large value %d! (%s)\n",
918 __func__, value, current->comm);
dde5845a
JK		 919 WARN_ON(value > m);
920 value &= m;
921
922 report += offset >> 3;
923 offset &= 7;
924
6f0168d2
HH		 925 x = get_unaligned_le64(report);
926 x &= ~(m << offset);
927 x |= ((u64)value) << offset;
928 put_unaligned_le64(x, report);
dde5845a
JK		 929}
930
931/*
932 * Search an array for a value.
933 */
934
16ee4cc8 935static int search(__s32 *array, __s32 value, unsigned n)
dde5845a
JK		 936{
937 while (n--) {
938 if (*array++ == value)
939 return 0;
940 }
941 return -1;
942}
943
85cdaf52
JS		 944/**
945 * hid_match_report - check if driver's raw_event should be called
946 *
947 * @hid: hid device
948 * @report_type: type to match against
949 *
950 * compare hid->driver->report_table->report_type to report->type
951 */
952static int hid_match_report(struct hid_device *hid, struct hid_report *report)
dde5845a 953{
85cdaf52
JS		 954 const struct hid_report_id *id = hid->driver->report_table;
955
956 if (!id) /* NULL means all */
957 return 1;
958
959 for (; id->report_type != HID_TERMINATOR; id++)
960 if (id->report_type == HID_ANY_ID ||
961 id->report_type == report->type)
962 return 1;
963 return 0;
964}
965
966/**
967 * hid_match_usage - check if driver's event should be called
968 *
969 * @hid: hid device
970 * @usage: usage to match against
971 *
972 * compare hid->driver->usage_table->usage_{type,code} to
973 * usage->usage_{type,code}
974 */
975static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage)
976{
977 const struct hid_usage_id *id = hid->driver->usage_table;
978
979 if (!id) /* NULL means all */
980 return 1;
981
982 for (; id->usage_type != HID_ANY_ID - 1; id++)
983 if ((id->usage_hid == HID_ANY_ID ||
984 id->usage_hid == usage->hid) &&
985 (id->usage_type == HID_ANY_ID ||
986 id->usage_type == usage->type) &&
987 (id->usage_code == HID_ANY_ID ||
988 id->usage_code == usage->code))
989 return 1;
990 return 0;
991}
992
993static void hid_process_event(struct hid_device *hid, struct hid_field *field,
994 struct hid_usage *usage, __s32 value, int interrupt)
995{
996 struct hid_driver *hdrv = hid->driver;
997 int ret;
998
cd667ce2 999 hid_dump_input(hid, usage, value);
85cdaf52
JS		 1000
1001 if (hdrv && hdrv->event && hid_match_usage(hid, usage)) {
1002 ret = hdrv->event(hid, field, usage, value);
1003 if (ret != 0) {
1004 if (ret < 0)
8c3d52fc 1005 hid_err(hid, "%s's event failed with %d\n",
85cdaf52
JS		 1006 hdrv->name, ret);
1007 return;
1008 }
1009 }
1010
dde5845a
JK		 1011 if (hid->claimed & HID_CLAIMED_INPUT)
1012 hidinput_hid_event(hid, field, usage, value);
aa938f79
JK		 1013 if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event)
1014 hid->hiddev_hid_event(hid, field, usage, value);
dde5845a
JK		 1015}
1016
1017/*
1018 * Analyse a received field, and fetch the data from it. The field
1019 * content is stored for next report processing (we do differential
1020 * reporting to the layer).
1021 */
1022
abdff0f7
AB		 1023static void hid_input_field(struct hid_device *hid, struct hid_field *field,
1024 __u8 *data, int interrupt)
dde5845a
JK		 1025{
1026 unsigned n;
1027 unsigned count = field->report_count;
1028 unsigned offset = field->report_offset;
1029 unsigned size = field->report_size;
1030 __s32 min = field->logical_minimum;
1031 __s32 max = field->logical_maximum;
1032 __s32 *value;
1033
a3789a17
JP		 1034 value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC);
1035 if (!value)
dde5845a
JK		 1036 return;
1037
1038 for (n = 0; n < count; n++) {
1039
4291ee30
JP		 1040 value[n] = min < 0 ?
1041 snto32(extract(hid, data, offset + n * size, size),
1042 size) :
1043 extract(hid, data, offset + n * size, size);
dde5845a 1044
4291ee30
JP		 1045 /* Ignore report if ErrorRollOver */
1046 if (!(field->flags & HID_MAIN_ITEM_VARIABLE) &&
1047 value[n] >= min && value[n] <= max &&
1048 field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
1049 goto exit;
dde5845a
JK		 1050 }
1051
1052 for (n = 0; n < count; n++) {
1053
1054 if (HID_MAIN_ITEM_VARIABLE & field->flags) {
1055 hid_process_event(hid, field, &field->usage[n], value[n], interrupt);
1056 continue;
1057 }
1058
1059 if (field->value[n] >= min && field->value[n] <= max
1060 && field->usage[field->value[n] - min].hid
1061 && search(value, field->value[n], count))
1062 hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt);
1063
1064 if (value[n] >= min && value[n] <= max
1065 && field->usage[value[n] - min].hid
1066 && search(field->value, value[n], count))
1067 hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt);
1068 }
1069
1070 memcpy(field->value, value, count * sizeof(__s32));
1071exit:
1072 kfree(value);
1073}
dde5845a
JK		 1074
1075/*
1076 * Output the field into the report.
1077 */
1078
4291ee30
JP		 1079static void hid_output_field(const struct hid_device *hid,
1080 struct hid_field *field, __u8 *data)
dde5845a
JK		 1081{
1082 unsigned count = field->report_count;
1083 unsigned offset = field->report_offset;
1084 unsigned size = field->report_size;
1085 unsigned n;
1086
1087 for (n = 0; n < count; n++) {
1088 if (field->logical_minimum < 0) /* signed values */
4291ee30
JP		 1089 implement(hid, data, offset + n * size, size,
1090 s32ton(field->value[n], size));
dde5845a 1091 else /* unsigned values */
4291ee30
JP		 1092 implement(hid, data, offset + n * size, size,
1093 field->value[n]);
dde5845a
JK		 1094 }
1095}
1096
1097/*
1098 * Create a report.
1099 */
1100
229695e5 1101void hid_output_report(struct hid_report *report, __u8 *data)
dde5845a
JK		 1102{
1103 unsigned n;
1104
1105 if (report->id > 0)
1106 *data++ = report->id;
1107
75c28df8 1108 memset(data, 0, ((report->size - 1) >> 3) + 1);
dde5845a 1109 for (n = 0; n < report->maxfield; n++)
4291ee30 1110 hid_output_field(report->device, report->field[n], data);
dde5845a 1111}
229695e5 1112EXPORT_SYMBOL_GPL(hid_output_report);
dde5845a
JK		 1113
1114/*
1115 * Set a field value. The report this field belongs to has to be
1116 * created and transferred to the device, to set this value in the
1117 * device.
1118 */
1119
1120int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
1121{
1122 unsigned size = field->report_size;
1123
cd667ce2 1124 hid_dump_input(field->report->device, field->usage + offset, value);
dde5845a
JK		 1125
1126 if (offset >= field->report_count) {
8c3d52fc
JK		 1127 hid_err(field->report->device, "offset (%d) exceeds report_count (%d)\n",
1128 offset, field->report_count);
dde5845a
JK		 1129 return -1;
1130 }
1131 if (field->logical_minimum < 0) {
1132 if (value != snto32(s32ton(value, size), size)) {
8c3d52fc 1133 hid_err(field->report->device, "value %d is out of range\n", value);
dde5845a
JK		 1134 return -1;
1135 }
1136 }
1137 field->value[offset] = value;
1138 return 0;
1139}
229695e5 1140EXPORT_SYMBOL_GPL(hid_set_field);
dde5845a 1141
85cdaf52
JS		 1142static struct hid_report *hid_get_report(struct hid_report_enum *report_enum,
1143 const u8 *data)
aa8de2f0 1144{
aa8de2f0 1145 struct hid_report *report;
85cdaf52 1146 unsigned int n = 0; /* Normally report number is 0 */
aa8de2f0 1147
85cdaf52
JS		 1148 /* Device uses numbered reports, data[0] is report number */
1149 if (report_enum->numbered)
1150 n = *data;
aa8de2f0 1151
85cdaf52
JS		 1152 report = report_enum->report_id_hash[n];
1153 if (report == NULL)
1154 dbg_hid("undefined report_id %u received\n", n);
aa8de2f0 1155
85cdaf52
JS		 1156 return report;
1157}
aa8de2f0 1158
b6787242 1159int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
85cdaf52
JS		 1160 int interrupt)
1161{
1162 struct hid_report_enum *report_enum = hid->report_enum + type;
1163 struct hid_report *report;
1164 unsigned int a;
1165 int rsize, csize = size;
1166 u8 *cdata = data;
b6787242 1167 int ret = 0;
aa8de2f0 1168
85cdaf52
JS		 1169 report = hid_get_report(report_enum, data);
1170 if (!report)
b6787242 1171 goto out;
aa8de2f0 1172
85cdaf52
JS		 1173 if (report_enum->numbered) {
1174 cdata++;
1175 csize--;
aa8de2f0
JK		 1176 }
1177
1178 rsize = ((report->size - 1) >> 3) + 1;
1179
966922f2
AV		 1180 if (rsize > HID_MAX_BUFFER_SIZE)
1181 rsize = HID_MAX_BUFFER_SIZE;
1182
85cdaf52
JS		 1183 if (csize < rsize) {
1184 dbg_hid("report %d is too short, (%d < %d)\n", report->id,
1185 csize, rsize);
1186 memset(cdata + csize, 0, rsize - csize);
aa8de2f0
JK		 1187 }
1188
1189 if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event)
1190 hid->hiddev_report_event(hid, report);
b6787242
JK		 1191 if (hid->claimed & HID_CLAIMED_HIDRAW) {
1192 ret = hidraw_report_event(hid, data, size);
1193 if (ret)
1194 goto out;
1195 }
aa8de2f0 1196
b94e3c94
MC		 1197 if (hid->claimed != HID_CLAIMED_HIDRAW) {
1198 for (a = 0; a < report->maxfield; a++)
1199 hid_input_field(hid, report->field[a], cdata, interrupt);
1200 }
aa8de2f0
JK		 1201
1202 if (hid->claimed & HID_CLAIMED_INPUT)
1203 hidinput_report_event(hid, report);
b6787242
JK		 1204out:
1205 return ret;
85cdaf52
JS		 1206}
1207EXPORT_SYMBOL_GPL(hid_report_raw_event);
1208
1209/**
1210 * hid_input_report - report data from lower layer (usb, bt...)
1211 *
1212 * @hid: hid device
1213 * @type: HID report type (HID_*_REPORT)
1214 * @data: report contents
1215 * @size: size of data parameter
ff9b00a2 1216 * @interrupt: distinguish between interrupt and control transfers
85cdaf52
JS		 1217 *
1218 * This is data entry for lower layers.
1219 */
1220int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt)
1221{
76c317d6
JL		 1222 struct hid_report_enum *report_enum;
1223 struct hid_driver *hdrv;
85cdaf52 1224 struct hid_report *report;
cd667ce2 1225 char *buf;
85cdaf52 1226 unsigned int i;
45dc1ac7 1227 int ret = 0;
85cdaf52 1228
4ea54542 1229 if (!hid)
85cdaf52 1230 return -ENODEV;
4ea54542
DH		 1231
1232 if (down_trylock(&hid->driver_lock))
1233 return -EBUSY;
1234
1235 if (!hid->driver) {
1236 ret = -ENODEV;
1237 goto unlock;
1238 }
76c317d6
JL		 1239 report_enum = hid->report_enum + type;
1240 hdrv = hid->driver;
85cdaf52
JS		 1241
1242 if (!size) {
1243 dbg_hid("empty report\n");
4ea54542
DH		 1244 ret = -1;
1245 goto unlock;
85cdaf52
JS		 1246 }
1247
b94e3c94
MC		 1248 /* Avoid unnecessary overhead if debugfs is disabled */
1249 if (list_empty(&hid->debug_list))
1250 goto nomem;
1251
d1ff6522 1252 buf = kmalloc(sizeof(char) * HID_DEBUG_BUFSIZE, GFP_ATOMIC);
cd667ce2 1253
f77e347b 1254 if (!buf)
cd667ce2 1255 goto nomem;
85cdaf52
JS		 1256
1257 /* dump the report */
cd667ce2 1258 snprintf(buf, HID_DEBUG_BUFSIZE - 1,
1caea61e 1259 "\nreport (size %u) (%snumbered) = ", size, report_enum->numbered ? "" : "un");
cd667ce2 1260 hid_debug_event(hid, buf);
1caea61e 1261
cd667ce2
JK		 1262 for (i = 0; i < size; i++) {
1263 snprintf(buf, HID_DEBUG_BUFSIZE - 1,
1264 " %02x", data[i]);
1265 hid_debug_event(hid, buf);
1266 }
1267 hid_debug_event(hid, "\n");
cd667ce2 1268 kfree(buf);
85cdaf52 1269
cd667ce2 1270nomem:
1caea61e
JK		 1271 report = hid_get_report(report_enum, data);
1272
4ea54542
DH		 1273 if (!report) {
1274 ret = -1;
1275 goto unlock;
1276 }
85cdaf52
JS		 1277
1278 if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) {
1279 ret = hdrv->raw_event(hid, report, data, size);
4ea54542
DH		 1280 if (ret != 0) {
1281 ret = ret < 0 ? ret : 0;
1282 goto unlock;
1283 }
85cdaf52
JS		 1284 }
1285
b6787242 1286 ret = hid_report_raw_event(hid, type, data, size, interrupt);
aa8de2f0 1287
4ea54542
DH		 1288unlock:
1289 up(&hid->driver_lock);
45dc1ac7 1290 return ret;
aa8de2f0
JK		 1291}
1292EXPORT_SYMBOL_GPL(hid_input_report);
1293
0f37cd03
JK		 1294static bool hid_match_one_id(struct hid_device *hdev,
1295 const struct hid_device_id *id)
1296{
7431fb76 1297 return (id->bus == HID_BUS_ANY || id->bus == hdev->bus) &&
4d53b801 1298 (id->group == HID_GROUP_ANY || id->group == hdev->group) &&
0f37cd03
JK		 1299 (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) &&
1300 (id->product == HID_ANY_ID || id->product == hdev->product);
1301}
1302
bbc21cfd 1303const struct hid_device_id *hid_match_id(struct hid_device *hdev,
0f37cd03
JK		 1304 const struct hid_device_id *id)
1305{
1306 for (; id->bus; id++)
1307 if (hid_match_one_id(hdev, id))
1308 return id;
1309
1310 return NULL;
1311}
1312
1313static const struct hid_device_id hid_hiddev_list[] = {
c0bd6a42
RH		 1314 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) },
1315 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) },
0f37cd03
JK		 1316 { }
1317};
1318
1319static bool hid_hiddev(struct hid_device *hdev)
1320{
1321 return !!hid_match_id(hdev, hid_hiddev_list);
1322}
1323
6d3bfb74
AO		 1324
1325static ssize_t
1326read_report_descriptor(struct file *filp, struct kobject *kobj,
1327 struct bin_attribute *attr,
1328 char *buf, loff_t off, size_t count)
1329{
1330 struct device *dev = container_of(kobj, struct device, kobj);
1331 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1332
1333 if (off >= hdev->rsize)
1334 return 0;
1335
1336 if (off + count > hdev->rsize)
1337 count = hdev->rsize - off;
1338
1339 memcpy(buf, hdev->rdesc + off, count);
1340
1341 return count;
1342}
1343
1344static struct bin_attribute dev_bin_attr_report_desc = {
1345 .attr = { .name = "report_descriptor", .mode = 0444 },
1346 .read = read_report_descriptor,
1347 .size = HID_MAX_DESCRIPTOR_SIZE,
1348};
1349
93c10132
JS		 1350int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
1351{
1352 static const char *types[] = { "Device", "Pointer", "Mouse", "Device",
1353 "Joystick", "Gamepad", "Keyboard", "Keypad",
1354 "Multi-Axis Controller"
1355 };
1356 const char *type, *bus;
1357 char buf[64];
1358 unsigned int i;
1359 int len;
6d3bfb74 1360 int ret;
93c10132 1361
b5e5a37e
BN		 1362 if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE)
1363 connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV);
3a343ee4
DM		 1364 if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE)
1365 connect_mask |= HID_CONNECT_HIDINPUT_FORCE;
93c10132
JS		 1366 if (hdev->bus != BUS_USB)
1367 connect_mask &= ~HID_CONNECT_HIDDEV;
0f37cd03
JK		 1368 if (hid_hiddev(hdev))
1369 connect_mask |= HID_CONNECT_HIDDEV_FORCE;
93c10132
JS		 1370
1371 if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,
1372 connect_mask & HID_CONNECT_HIDINPUT_FORCE))
1373 hdev->claimed |= HID_CLAIMED_INPUT;
b77c3920 1374
93c10132
JS		 1375 if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect &&
1376 !hdev->hiddev_connect(hdev,
1377 connect_mask & HID_CONNECT_HIDDEV_FORCE))
1378 hdev->claimed |= HID_CLAIMED_HIDDEV;
1379 if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev))
1380 hdev->claimed |= HID_CLAIMED_HIDRAW;
1381
4bc19f62
DH		 1382 /* Drivers with the ->raw_event callback set are not required to connect
1383 * to any other listener. */
1384 if (!hdev->claimed && !hdev->driver->raw_event) {
1385 hid_err(hdev, "device has no listeners, quitting\n");
93c10132
JS		 1386 return -ENODEV;
1387 }
1388
1389 if ((hdev->claimed & HID_CLAIMED_INPUT) &&
1390 (connect_mask & HID_CONNECT_FF) && hdev->ff_init)
1391 hdev->ff_init(hdev);
1392
1393 len = 0;
1394 if (hdev->claimed & HID_CLAIMED_INPUT)
1395 len += sprintf(buf + len, "input");
1396 if (hdev->claimed & HID_CLAIMED_HIDDEV)
1397 len += sprintf(buf + len, "%shiddev%d", len ? "," : "",
1398 hdev->minor);
1399 if (hdev->claimed & HID_CLAIMED_HIDRAW)
1400 len += sprintf(buf + len, "%shidraw%d", len ? "," : "",
1401 ((struct hidraw *)hdev->hidraw)->minor);
1402
1403 type = "Device";
1404 for (i = 0; i < hdev->maxcollection; i++) {
1405 struct hid_collection *col = &hdev->collection[i];
1406 if (col->type == HID_COLLECTION_APPLICATION &&
1407 (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
1408 (col->usage & 0xffff) < ARRAY_SIZE(types)) {
1409 type = types[col->usage & 0xffff];
1410 break;
1411 }
1412 }
1413
1414 switch (hdev->bus) {
1415 case BUS_USB:
1416 bus = "USB";
1417 break;
1418 case BUS_BLUETOOTH:
1419 bus = "BLUETOOTH";
1420 break;
1421 default:
1422 bus = "<UNKNOWN>";
1423 }
1424
6d3bfb74
AO		 1425 ret = device_create_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1426 if (ret)
1427 hid_warn(hdev,
1428 "can't create sysfs report descriptor attribute err: %d\n", ret);
1429
4291ee30
JP		 1430 hid_info(hdev, "%s: %s HID v%x.%02x %s [%s] on %s\n",
1431 buf, bus, hdev->version >> 8, hdev->version & 0xff,
1432 type, hdev->name, hdev->phys);
93c10132
JS		 1433
1434 return 0;
1435}
1436EXPORT_SYMBOL_GPL(hid_connect);
1437
c4c259bc
JK		 1438void hid_disconnect(struct hid_device *hdev)
1439{
6d3bfb74 1440 device_remove_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
c4c259bc
JK		 1441 if (hdev->claimed & HID_CLAIMED_INPUT)
1442 hidinput_disconnect(hdev);
1443 if (hdev->claimed & HID_CLAIMED_HIDDEV)
1444 hdev->hiddev_disconnect(hdev);
1445 if (hdev->claimed & HID_CLAIMED_HIDRAW)
1446 hidraw_disconnect(hdev);
1447}
1448EXPORT_SYMBOL_GPL(hid_disconnect);
1449
00315e4f
JK		 1450/*
1451 * A list of devices for which there is a specialized driver on HID bus.
1452 *
1453 * Please note that for multitouch devices (driven by hid-multitouch driver),
1454 * there is a proper autodetection and autoloading in place (based on presence
1455 * of HID_DG_CONTACTID), so those devices don't need to be added to this list,
1456 * as we are doing the right thing in hid_scan_usage().
1457 */
ce06b9d6 1458static const struct hid_device_id hid_have_special_driver[] = {
14a21cd4
JS		 1459 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
1460 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
b7e1b203 1461 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) },
c0dbcc33 1462 { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) },
df9bcace 1463 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ATV_IRCONTROL) },
8c19a515
JS		 1464 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
1465 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
128537ce 1466 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
a462230e 1467 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) },
8c19a515
JS		 1468 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1469 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1470 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1471 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1472 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1473 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1474 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1475 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1476 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1477 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1478 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
fef3f571
RF		 1479 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) },
1480 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) },
1481 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) },
8c19a515
JS		 1482 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) },
1483 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) },
1484 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) },
1485 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1486 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1487 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
ee8a1a0a
JS		 1488 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) },
1489 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) },
1490 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) },
8c19a515
JS		 1491 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1492 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1493 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1494 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1495 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1496 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
a96d6ef3
HR		 1497 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1498 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1499 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
99b9f758
EH		 1500 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
1501 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
1502 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
1503 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
1504 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
1505 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
47340bd9
AB		 1506 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
1507 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
1508 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
213f9da8
GE		 1509 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
1510 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
1511 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
4a4c8799
DB		 1512 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ANSI) },
1513 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ISO) },
1514 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_JIS) },
f6f554f0
JK		 1515 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
1516 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
1517 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
b3aec7b6
JK		 1518 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
1519 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
1520 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
b2e6ad7d
RB		 1521 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
1522 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
1523 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
23aeb61e
CSW		 1524 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) },
1525 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) },
1526 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) },
ad734bc1 1527 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO) },
8c19a515
JS		 1528 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1529 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
212da74d 1530 { HID_USB_DEVICE(USB_VENDOR_ID_AUREAL, USB_DEVICE_ID_AUREAL_W01RN) },
b5635b12 1531 { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
bf280628 1532 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
c3dc66de 1533 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
3b239cd7 1534 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
1ce31b25 1535 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
fcfacfd3 1536 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
b9e4b1e0 1537 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS) },
3596bb92 1538 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) },
2d8767bb 1539 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_AK1D) },
3a370ca1 1540 { HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) },
0f221320
JS		 1541 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) },
1542 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) },
e8d0eab4 1543 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) },
76c9d8fe 1544 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_4) },
0f221320 1545 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
3f866fbd 1546 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
e05eefb9 1547 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011) },
64b386ea 1548 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
04561c5a 1549 { HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) },
1f243e30 1550 { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
5181e594 1551 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) },
578f3a35 1552 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) },
5181e594 1553 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) },
42859e0b 1554 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) },
949f8fef 1555 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
1e093206 1556 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
c2fd1a4e 1557 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
d946e65e 1558 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) },
ff9bf5a2 1559 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) },
fdf93aa3 1560 { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
177900e8 1561 { HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) },
79422741 1562 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
22ca20b2
NK		 1563 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_I405X) },
1564 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X) },
1565 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X) },
b5635b12 1566 { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
75b07022 1567 { HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) },
c1dcad2d 1568 { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) },
5f22a799
JS		 1569 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
1570 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
1571 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) },
1572 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) },
1573 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) },
1574 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) },
1575 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) },
5f22a799
JS		 1576 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) },
1577 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) },
5f22a799
JS		 1578 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) },
1579 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) },
2c6118e4 1580 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) },
606bd0a8
JS		 1581 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
1582 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },
1583 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
fd30ea8c 1584 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) },
606bd0a8 1585 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
74f292ca 1586 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) },
606bd0a8
JS		 1587 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
1588 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
5623a24a 1589 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFP_WHEEL) },
e00ddc9b 1590 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFGT_WHEEL) },
243b706d 1591 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
fdc6807f 1592 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G27_WHEEL) },
0944e964 1593#if IS_ENABLED(CONFIG_HID_LOGITECH_DJ)
534a7b8e
NLC		 1594 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER) },
1595 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2) },
0944e964 1596#endif
32c88cbc 1597 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) },
606bd0a8 1598 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) },
24985cf6
JK		 1599 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) },
1600 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) },
236db47c
BP		 1601 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
1602 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
b580169a 1603 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500) },
78a849a6
JS		 1604 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) },
1605 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) },
1606 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) },
1607 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) },
f3b83d71 1608 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K) },
78a849a6 1609 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
3b8006e5 1610 { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
94011f93 1611 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
6e32819e 1612 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) },
1613 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) },
1614 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) },
1615 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) },
1616 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) },
1617 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) },
1618 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) },
1619 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) },
1620 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) },
1621 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) },
1622 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) },
1623 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) },
1624 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) },
1625 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) },
1626 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) },
1627 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) },
1628 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) },
1629 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) },
270fdc07 1630 { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) },
cd9ec30d 1631 { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
1e762532 1632 { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
f6a04605 1633 { HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_KEYBOARD) },
ca9bbdcc 1634#if IS_ENABLED(CONFIG_HID_ROCCAT)
14bf62cd 1635 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
e68cc603 1636 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) },
d41c2a70 1637 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
47dbdbff 1638 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
0e70f97f 1639 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
cb7cf3da 1640 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
3fce2246 1641 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) },
6a2a6390 1642 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_SAVU) },
ca9bbdcc 1643#endif
1e93674a 1644 { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000) },
980a3da6 1645 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
b355850b 1646 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
d586dca0 1647 { HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
bd28ce00 1648 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
35dca5b4 1649 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER) },
f9ce7c28 1650 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
cc6e0bbb 1651 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
90231e7e 1652 { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
daedb3d6
AH		 1653 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
1654 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
7a84b133
RAG		 1655 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) },
1656 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) },
daedb3d6 1657 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
3ee8f0a2 1658 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) },
daedb3d6 1659 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
d65c3768 1660 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) },
740363fb 1661 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) },
44ea35c1 1662 { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) },
f14f526d 1663 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
54001081 1664 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
711a680e 1665 { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
41fa9230 1666 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
f8a489cc
NK		 1667 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
1668 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
1669 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
6be914f1 1670 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP1062) },
d1257081 1671 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_WIRELESS_TABLET_TWHL850) },
fac733f0 1672 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
42fc04e5 1673 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SUPER_JOY_BOX_3) },
ad395cca 1674 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD) },
1bcc2067
SY		 1675 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO) },
1676 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO) },
1677 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO) },
ca2dcd40 1678 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
78761ff9 1679 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) },
72a46344 1680 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
00e7f964 1681 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
4fdc18d1 1682 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_Q_PAD) },
a786e83c 1683 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_PID_0038) },
72a46344 1684 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
8f1acc32 1685 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
d2ee4dd9 1686 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET) },
74bc6953 1687 { HID_USB_DEVICE(USB_VENDOR_ID_X_TENSIONS, USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE) },
daedb3d6
AH		 1688 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
1689 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
a9885c8f 1690 { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
8c19a515 1691
78a849a6 1692 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
02fb72a0 1693 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) },
85cdaf52
JS		 1694 { }
1695};
1696
3a6f82f7
JS		 1697struct hid_dynid {
1698 struct list_head list;
1699 struct hid_device_id id;
1700};
1701
1702/**
1703 * store_new_id - add a new HID device ID to this driver and re-probe devices
1704 * @driver: target device driver
1705 * @buf: buffer for scanning device ID data
1706 * @count: input size
1707 *
1708 * Adds a new dynamic hid device ID to this driver,
1709 * and causes the driver to probe for all devices again.
1710 */
1711static ssize_t store_new_id(struct device_driver *drv, const char *buf,
1712 size_t count)
1713{
1714 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1715 struct hid_dynid *dynid;
1716 __u32 bus, vendor, product;
1717 unsigned long driver_data = 0;
1718 int ret;
1719
1720 ret = sscanf(buf, "%x %x %x %lx",
1721 &bus, &vendor, &product, &driver_data);
1722 if (ret < 3)
1723 return -EINVAL;
1724
1725 dynid = kzalloc(sizeof(*dynid), GFP_KERNEL);
1726 if (!dynid)
1727 return -ENOMEM;
1728
1729 dynid->id.bus = bus;
4d53b801 1730 dynid->id.group = HID_GROUP_ANY;
3a6f82f7
JS		 1731 dynid->id.vendor = vendor;
1732 dynid->id.product = product;
1733 dynid->id.driver_data = driver_data;
1734
1735 spin_lock(&hdrv->dyn_lock);
1736 list_add_tail(&dynid->list, &hdrv->dyn_list);
1737 spin_unlock(&hdrv->dyn_lock);
1738
cef9bc56 1739 ret = driver_attach(&hdrv->driver);
3a6f82f7
JS		 1740
1741 return ret ? : count;
1742}
1743static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
1744
1745static void hid_free_dynids(struct hid_driver *hdrv)
1746{
1747 struct hid_dynid *dynid, *n;
1748
1749 spin_lock(&hdrv->dyn_lock);
1750 list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) {
1751 list_del(&dynid->list);
1752 kfree(dynid);
1753 }
1754 spin_unlock(&hdrv->dyn_lock);
1755}
1756
1757static const struct hid_device_id *hid_match_device(struct hid_device *hdev,
1758 struct hid_driver *hdrv)
1759{
1760 struct hid_dynid *dynid;
1761
1762 spin_lock(&hdrv->dyn_lock);
1763 list_for_each_entry(dynid, &hdrv->dyn_list, list) {
1764 if (hid_match_one_id(hdev, &dynid->id)) {
1765 spin_unlock(&hdrv->dyn_lock);
1766 return &dynid->id;
1767 }
1768 }
1769 spin_unlock(&hdrv->dyn_lock);
1770
1771 return hid_match_id(hdev, hdrv->id_table);
1772}
1773
85cdaf52
JS		 1774static int hid_bus_match(struct device *dev, struct device_driver *drv)
1775{
1776 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1777 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1778
070748ed 1779 return hid_match_device(hdev, hdrv) != NULL;
85cdaf52
JS		 1780}
1781
1782static int hid_device_probe(struct device *dev)
1783{
1784 struct hid_driver *hdrv = container_of(dev->driver,
1785 struct hid_driver, driver);
1786 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1787 const struct hid_device_id *id;
1788 int ret = 0;
1789
4ea54542
DH		 1790 if (down_interruptible(&hdev->driver_lock))
1791 return -EINTR;
1792
85cdaf52 1793 if (!hdev->driver) {
3a6f82f7 1794 id = hid_match_device(hdev, hdrv);
ba623a77 1795 if (id == NULL) {
4fa3a583
HR		 1796 ret = -ENODEV;
1797 goto unlock;
ba623a77 1798 }
85cdaf52 1799
c500c971
JS		 1800 hdev->driver = hdrv;
1801 if (hdrv->probe) {
1802 ret = hdrv->probe(hdev, id);
1803 } else { /* default probe */
a7197c2e 1804 ret = hid_open_report(hdev);
c500c971 1805 if (!ret)
93c10132 1806 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
85cdaf52 1807 }
a7197c2e
HR		 1808 if (ret) {
1809 hid_close_report(hdev);
c500c971 1810 hdev->driver = NULL;
a7197c2e 1811 }
85cdaf52 1812 }
ba623a77 1813unlock:
4ea54542 1814 up(&hdev->driver_lock);
85cdaf52
JS		 1815 return ret;
1816}
1817
1818static int hid_device_remove(struct device *dev)
1819{
1820 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
4ea54542
DH		 1821 struct hid_driver *hdrv;
1822
1823 if (down_interruptible(&hdev->driver_lock))
1824 return -EINTR;
85cdaf52 1825
4ea54542 1826 hdrv = hdev->driver;
85cdaf52
JS		 1827 if (hdrv) {
1828 if (hdrv->remove)
1829 hdrv->remove(hdev);
c500c971
JS		 1830 else /* default remove */
1831 hid_hw_stop(hdev);
a7197c2e 1832 hid_close_report(hdev);
85cdaf52
JS		 1833 hdev->driver = NULL;
1834 }
1835
4ea54542 1836 up(&hdev->driver_lock);
85cdaf52
JS		 1837 return 0;
1838}
1839
4d53b801
HR		 1840static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
1841 char *buf)
1842{
1843 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1844 int len;
1845
1846 len = snprintf(buf, PAGE_SIZE, "hid:b%04Xg%04Xv%08Xp%08X\n",
1847 hdev->bus, hdev->group, hdev->vendor, hdev->product);
1848
1849 return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
1850}
1851
1852static struct device_attribute hid_dev_attrs[] = {
1853 __ATTR_RO(modalias),
1854 __ATTR_NULL,
1855};
1856
85cdaf52
JS		 1857static int hid_uevent(struct device *dev, struct kobj_uevent_env *env)
1858{
1859 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1860
1861 if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X",
1862 hdev->bus, hdev->vendor, hdev->product))
1863 return -ENOMEM;
1864
1865 if (add_uevent_var(env, "HID_NAME=%s", hdev->name))
1866 return -ENOMEM;
1867
1868 if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys))
1869 return -ENOMEM;
1870
1871 if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq))
1872 return -ENOMEM;
1873
4d53b801
HR		 1874 if (add_uevent_var(env, "MODALIAS=hid:b%04Xg%04Xv%08Xp%08X",
1875 hdev->bus, hdev->group, hdev->vendor, hdev->product))
85cdaf52
JS		 1876 return -ENOMEM;
1877
1878 return 0;
1879}
1880
1881static struct bus_type hid_bus_type = {
1882 .name = "hid",
4d53b801 1883 .dev_attrs = hid_dev_attrs,
85cdaf52
JS		 1884 .match = hid_bus_match,
1885 .probe = hid_device_probe,
1886 .remove = hid_device_remove,
1887 .uevent = hid_uevent,
1888};
1889
bae7eb33 1890/* a list of devices that shouldn't be handled by HID core at all */
d458a9df
JS		 1891static const struct hid_device_id hid_ignore_list[] = {
1892 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) },
1893 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) },
1894 { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) },
1895 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) },
1896 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) },
1897 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) },
1898 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) },
1899 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) },
1900 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) },
1901 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) },
1902 { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) },
1903 { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) },
77f720b7
SC		 1904 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)},
1905 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)},
62a56582 1906 { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) },
11030183 1907 { HID_USB_DEVICE(USB_VENDOR_ID_AXENTIA, USB_DEVICE_ID_AXENTIA_FM_RADIO) },
d458a9df
JS		 1908 { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) },
1909 { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) },
1910 { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) },
1911 { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) },
1912 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) },
1913 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) },
5f6108cf 1914 { HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) },
d458a9df
JS		 1915 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) },
1916 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
73bc7d31 1917 { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x0004) },
789aaa2e 1918 { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x000a) },
d458a9df 1919 { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
70c66567 1920 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
df506f2c 1921 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
b1807719 1922 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) },
d458a9df 1923 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) },
d458a9df
JS		 1924 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) },
1925 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) },
1926 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) },
1927 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) },
1928 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) },
1929 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) },
1930 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) },
1931 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) },
1932 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) },
1933 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) },
1934 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) },
1935 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) },
1936 { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) },
1937 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) },
1938 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) },
8e2ce73e 1939 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_RADIOSHARK) },
d458a9df
JS		 1940 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) },
1941 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) },
1942 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) },
1943 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) },
1944 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) },
1945 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) },
1946 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) },
1947 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) },
1948 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) },
1949 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) },
1950 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) },
1951 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) },
1952 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) },
1953 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) },
1954 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) },
1955 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) },
1956 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) },
1957 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) },
1958 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) },
1959 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) },
1960 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) },
1961 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) },
1962 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) },
1963 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) },
1964 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) },
1965 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) },
1966 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) },
1967 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) },
1968 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) },
1969 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) },
1970 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) },
1971 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) },
1972 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) },
1973 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) },
1974 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) },
1975 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) },
1976 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) },
1977 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) },
1978 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) },
1979 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) },
1980 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) },
1981 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) },
1982 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) },
1983 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) },
1984 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) },
1985 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) },
1986 { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) },
1987 { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) },
c91c21c5 1988 { HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) },
d458a9df 1989 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) },
eb8141cc 1990 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) },
d458a9df 1991 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) },
ce97cac8 1992 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY2) },
d458a9df 1993 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) },
ce97cac8 1994 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY2) },
d458a9df 1995 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) },
ce97cac8
MH		 1996 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY2) },
1997 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYVOLTAGE) },
1998 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYCURRENT) },
1999 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTIME) },
2000 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTEMPERATURE) },
2001 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYPH) },
d458a9df
JS		 2002 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) },
2003 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) },
2004 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) },
ce97cac8
MH		 2005 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIC) },
2006 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIB) },
2007 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY) },
d458a9df
JS		 2008 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) },
2009 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) },
ce97cac8 2010 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOTOR) },
d458a9df
JS		 2011 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) },
2012 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) },
2013 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) },
2014 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) },
2015 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) },
ce97cac8
MH		 2016 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER) },
2017 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER2) },
2018 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_ABSESP) },
2019 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_AUTODATABUS) },
2020 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MCT) },
2021 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HYBRID) },
2022 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HEATCONTROL) },
3ffb62cb 2023 { HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_BEATPAD) },
d458a9df
JS		 2024 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) },
2025 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) },
d458a9df
JS		 2026 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) },
2027 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) },
2028 { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) },
2029 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) },
2030 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) },
2031 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) },
2032 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) },
2033 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) },
2034 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) },
2035 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) },
2036 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) },
2037 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) },
2038 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) },
2039 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) },
2040 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) },
2041 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) },
2042 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
4cfae3e8 2043 { HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
35cfd1d9 2044 { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
8491ee10
JS		 2045#if defined(CONFIG_MOUSE_SYNAPTICS_USB) || defined(CONFIG_MOUSE_SYNAPTICS_USB_MODULE)
2046 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_TP) },
2047 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_INT_TP) },
2048 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_CPAD) },
2049 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_STICK) },
2050 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WP) },
2051 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_COMP_TP) },
2052 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WTP) },
2053 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_DPAD) },
2054#endif
d458a9df
JS		 2055 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) },
2056 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
2057 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },
2058 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) },
2059 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) },
2060 { HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) },
2061 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) },
2062 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) },
2063 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) },
2064 { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) },
2065 { }
2066};
2067
b4d8e473
JS		 2068/**
2069 * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer
2070 *
2071 * There are composite devices for which we want to ignore only a certain
2072 * interface. This is a list of devices for which only the mouse interface will
2073 * be ignored. This allows a dedicated driver to take care of the interface.
2074 */
2075static const struct hid_device_id hid_mouse_ignore_list[] = {
2076 /* appletouch driver */
2077 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
2078 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
2079 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
2080 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
2081 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
2082 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
2083 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
2084 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
2085 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
2086 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
2087 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
2088 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
2089 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
2090 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
2091 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
2092 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
2093 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
2094 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
2095 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
2096 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
ac26fca3
JK		 2097 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
2098 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
2099 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
99b9f758
EH		 2100 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
2101 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
2102 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
2103 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
2104 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
2105 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
47340bd9
AB		 2106 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
2107 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
2108 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
213f9da8
GE		 2109 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
2110 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
2111 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
4b086910
JK		 2112 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
2113 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
2114 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
2115 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
2116 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
2117 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
b2e6ad7d
RB		 2118 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
2119 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
2120 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
b4d8e473
JS		 2121 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
2122 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
2123 { }
2124};
2125
d458a9df
JS		 2126static bool hid_ignore(struct hid_device *hdev)
2127{
2128 switch (hdev->vendor) {
2129 case USB_VENDOR_ID_CODEMERCS:
2130 /* ignore all Code Mercenaries IOWarrior devices */
2131 if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST &&
2132 hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST)
2133 return true;
2134 break;
2135 case USB_VENDOR_ID_LOGITECH:
2136 if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST &&
2137 hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST)
2138 return true;
65dd3b69
HV		 2139 /*
2140 * The Keene FM transmitter USB device has the same USB ID as
2141 * the Logitech AudioHub Speaker, but it should ignore the hid.
2142 * Check if the name is that of the Keene device.
2143 * For reference: the name of the AudioHub is
2144 * "HOLTEK AudioHub Speaker".
2145 */
2146 if (hdev->product == USB_DEVICE_ID_LOGITECH_AUDIOHUB &&
2147 !strcmp(hdev->name, "HOLTEK B-LINK USB Audio "))
2148 return true;
d458a9df 2149 break;
31f7fd79
JW		 2150 case USB_VENDOR_ID_SOUNDGRAPH:
2151 if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST &&
2152 hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST)
2153 return true;
2154 break;
bba5394a
XW		 2155 case USB_VENDOR_ID_HANWANG:
2156 if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST &&
2157 hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST)
2158 return true;
2159 break;
6dc1418e
TS		 2160 case USB_VENDOR_ID_JESS:
2161 if (hdev->product == USB_DEVICE_ID_JESS_YUREX &&
2162 hdev->type == HID_TYPE_USBNONE)
2163 return true;
2164 break;
d458a9df
JS		 2165 }
2166
b4d8e473
JS		 2167 if (hdev->type == HID_TYPE_USBMOUSE &&
2168 hid_match_id(hdev, hid_mouse_ignore_list))
2169 return true;
2170
d458a9df
JS		 2171 return !!hid_match_id(hdev, hid_ignore_list);
2172}
2173
85cdaf52
JS		 2174int hid_add_device(struct hid_device *hdev)
2175{
2176 static atomic_t id = ATOMIC_INIT(0);
2177 int ret;
2178
2179 if (WARN_ON(hdev->status & HID_STAT_ADDED))
2180 return -EBUSY;
2181
d458a9df
JS		 2182 /* we need to kill them here, otherwise they will stay allocated to
2183 * wait for coming driver */
e5a2a04c
JM		 2184 if (!(hdev->quirks & HID_QUIRK_NO_IGNORE)
2185 && (hid_ignore(hdev) || (hdev->quirks & HID_QUIRK_IGNORE)))
d458a9df
JS		 2186 return -ENODEV;
2187
a7197c2e
HR		 2188 /*
2189 * Read the device report descriptor once and use as template
2190 * for the driver-specific modifications.
2191 */
2192 ret = hdev->ll_driver->parse(hdev);
2193 if (ret)
2194 return ret;
2195 if (!hdev->dev_rdesc)
2196 return -ENODEV;
2197
734c6609
HR		 2198 /*
2199 * Scan generic devices for group information
2200 */
2201 if (hid_ignore_special_drivers ||
2202 !hid_match_id(hdev, hid_have_special_driver)) {
2203 ret = hid_scan_report(hdev);
2204 if (ret)
2205 hid_warn(hdev, "bad device descriptor (%d)\n", ret);
2206 }
2207
6bbe586f
KS		 2208 /* XXX hack, any other cleaner solution after the driver core
2209 * is converted to allow more than 20 bytes as the device name? */
2210 dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
2211 hdev->vendor, hdev->product, atomic_inc_return(&id));
85cdaf52 2212
4da361b6 2213 hid_debug_register(hdev, dev_name(&hdev->dev));
85cdaf52
JS		 2214 ret = device_add(&hdev->dev);
2215 if (!ret)
2216 hdev->status |= HID_STAT_ADDED;
4da361b6
BP		 2217 else
2218 hid_debug_unregister(hdev);
a635f9dd 2219
85cdaf52
JS		 2220 return ret;
2221}
2222EXPORT_SYMBOL_GPL(hid_add_device);
2223
2224/**
2225 * hid_allocate_device - allocate new hid device descriptor
2226 *
2227 * Allocate and initialize hid device, so that hid_destroy_device might be
2228 * used to free it.
2229 *
2230 * New hid_device pointer is returned on success, otherwise ERR_PTR encoded
2231 * error value.
2232 */
2233struct hid_device *hid_allocate_device(void)
2234{
2235 struct hid_device *hdev;
85cdaf52
JS		 2236 int ret = -ENOMEM;
2237
2238 hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
2239 if (hdev == NULL)
2240 return ERR_PTR(ret);
2241
2242 device_initialize(&hdev->dev);
2243 hdev->dev.release = hid_device_release;
2244 hdev->dev.bus = &hid_bus_type;
2245
a7197c2e 2246 hid_close_report(hdev);
85cdaf52 2247
cd667ce2
JK		 2248 init_waitqueue_head(&hdev->debug_wait);
2249 INIT_LIST_HEAD(&hdev->debug_list);
4ea54542 2250 sema_init(&hdev->driver_lock, 1);
cd667ce2 2251
85cdaf52 2252 return hdev;
85cdaf52
JS		 2253}
2254EXPORT_SYMBOL_GPL(hid_allocate_device);
2255
2256static void hid_remove_device(struct hid_device *hdev)
2257{
2258 if (hdev->status & HID_STAT_ADDED) {
2259 device_del(&hdev->dev);
a635f9dd 2260 hid_debug_unregister(hdev);
85cdaf52
JS		 2261 hdev->status &= ~HID_STAT_ADDED;
2262 }
a7197c2e
HR		 2263 kfree(hdev->dev_rdesc);
2264 hdev->dev_rdesc = NULL;
2265 hdev->dev_rsize = 0;
85cdaf52
JS		 2266}
2267
2268/**
2269 * hid_destroy_device - free previously allocated device
2270 *
2271 * @hdev: hid device
2272 *
2273 * If you allocate hid_device through hid_allocate_device, you should ever
2274 * free by this function.
2275 */
2276void hid_destroy_device(struct hid_device *hdev)
2277{
2278 hid_remove_device(hdev);
2279 put_device(&hdev->dev);
2280}
2281EXPORT_SYMBOL_GPL(hid_destroy_device);
2282
2283int __hid_register_driver(struct hid_driver *hdrv, struct module *owner,
2284 const char *mod_name)
2285{
3a6f82f7
JS		 2286 int ret;
2287
85cdaf52
JS		 2288 hdrv->driver.name = hdrv->name;
2289 hdrv->driver.bus = &hid_bus_type;
2290 hdrv->driver.owner = owner;
2291 hdrv->driver.mod_name = mod_name;
2292
3a6f82f7
JS		 2293 INIT_LIST_HEAD(&hdrv->dyn_list);
2294 spin_lock_init(&hdrv->dyn_lock);
2295
2296 ret = driver_register(&hdrv->driver);
2297 if (ret)
2298 return ret;
2299
2300 ret = driver_create_file(&hdrv->driver, &driver_attr_new_id);
2301 if (ret)
2302 driver_unregister(&hdrv->driver);
2303
2304 return ret;
85cdaf52
JS		 2305}
2306EXPORT_SYMBOL_GPL(__hid_register_driver);
2307
2308void hid_unregister_driver(struct hid_driver *hdrv)
2309{
3a6f82f7 2310 driver_remove_file(&hdrv->driver, &driver_attr_new_id);
85cdaf52 2311 driver_unregister(&hdrv->driver);
3a6f82f7 2312 hid_free_dynids(hdrv);
85cdaf52
JS		 2313}
2314EXPORT_SYMBOL_GPL(hid_unregister_driver);
2315
0361a28d
ON		 2316int hid_check_keys_pressed(struct hid_device *hid)
2317{
2318 struct hid_input *hidinput;
2319 int i;
2320
e5288eb5
JK		 2321 if (!(hid->claimed & HID_CLAIMED_INPUT))
2322 return 0;
2323
0361a28d
ON		 2324 list_for_each_entry(hidinput, &hid->inputs, list) {
2325 for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++)
2326 if (hidinput->input->key[i])
2327 return 1;
2328 }
2329
2330 return 0;
2331}
2332
2333EXPORT_SYMBOL_GPL(hid_check_keys_pressed);
2334
86166b7b
JK		 2335static int __init hid_init(void)
2336{
85cdaf52
JS		 2337 int ret;
2338
a635f9dd 2339 if (hid_debug)
4291ee30
JP		 2340 pr_warn("hid_debug is now used solely for parser and driver debugging.\n"
2341 "debugfs is now used for inspecting the device (report descriptor, reports)\n");
a635f9dd 2342
85cdaf52
JS		 2343 ret = bus_register(&hid_bus_type);
2344 if (ret) {
4291ee30 2345 pr_err("can't register hid bus\n");
85cdaf52
JS		 2346 goto err;
2347 }
2348
2349 ret = hidraw_init();
2350 if (ret)
2351 goto err_bus;
2352
a635f9dd
JK		 2353 hid_debug_init();
2354
85cdaf52
JS		 2355 return 0;
2356err_bus:
2357 bus_unregister(&hid_bus_type);
2358err:
2359 return ret;
86166b7b
JK		 2360}
2361
2362static void __exit hid_exit(void)
2363{
a635f9dd 2364 hid_debug_exit();
86166b7b 2365 hidraw_exit();
85cdaf52 2366 bus_unregister(&hid_bus_type);
86166b7b
JK		 2367}
2368
2369module_init(hid_init);
2370module_exit(hid_exit);
2371
88adb72b
JK		 2372MODULE_AUTHOR("Andreas Gal");
2373MODULE_AUTHOR("Vojtech Pavlik");
2374MODULE_AUTHOR("Jiri Kosina");
aa938f79
JK		 2375MODULE_LICENSE(DRIVER_LICENSE);
2376
kernel source for telekom puls (alcatel/mediatek)