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HID: egalax: Use kzalloc
[linux-2.6-block.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
7d39e849 7 * Copyright (c) 2006-2010 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
17#include <linux/module.h>
18#include <linux/slab.h>
19#include <linux/init.h>
20#include <linux/kernel.h>
dde5845a
JK		 21#include <linux/list.h>
22#include <linux/mm.h>
dde5845a
JK		 23#include <linux/spinlock.h>
24#include <asm/unaligned.h>
25#include <asm/byteorder.h>
26#include <linux/input.h>
27#include <linux/wait.h>
47a80edb 28#include <linux/vmalloc.h>
c4124c9b 29#include <linux/sched.h>
dde5845a 30
dde5845a
JK		 31#include <linux/hid.h>
32#include <linux/hiddev.h>
c080d89a 33#include <linux/hid-debug.h>
86166b7b 34#include <linux/hidraw.h>
dde5845a 35
5f22a799
JS		 36#include "hid-ids.h"
37
dde5845a
JK		 38/*
39 * Version Information
40 */
41
53149801 42#define DRIVER_DESC "HID core driver"
dde5845a
JK		 43#define DRIVER_LICENSE "GPL"
44
58037eb9 45int hid_debug = 0;
377e10fb 46module_param_named(debug, hid_debug, int, 0600);
cd667ce2 47MODULE_PARM_DESC(debug, "toggle HID debugging messages");
58037eb9 48EXPORT_SYMBOL_GPL(hid_debug);
58037eb9 49
dde5845a
JK		 50/*
51 * Register a new report for a device.
52 */
53
90a006ab 54struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
dde5845a
JK		 55{
56 struct hid_report_enum *report_enum = device->report_enum + type;
57 struct hid_report *report;
58
59 if (report_enum->report_id_hash[id])
60 return report_enum->report_id_hash[id];
61
62 if (!(report = kzalloc(sizeof(struct hid_report), GFP_KERNEL)))
63 return NULL;
64
65 if (id != 0)
66 report_enum->numbered = 1;
67
68 report->id = id;
69 report->type = type;
70 report->size = 0;
71 report->device = device;
72 report_enum->report_id_hash[id] = report;
73
74 list_add_tail(&report->list, &report_enum->report_list);
75
76 return report;
77}
90a006ab 78EXPORT_SYMBOL_GPL(hid_register_report);
dde5845a
JK		 79
80/*
81 * Register a new field for this report.
82 */
83
84static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values)
85{
86 struct hid_field *field;
87
88 if (report->maxfield == HID_MAX_FIELDS) {
58037eb9 89 dbg_hid("too many fields in report\n");
dde5845a
JK		 90 return NULL;
91 }
92
93 if (!(field = kzalloc(sizeof(struct hid_field) + usages * sizeof(struct hid_usage)
94 + values * sizeof(unsigned), GFP_KERNEL))) return NULL;
95
96 field->index = report->maxfield++;
97 report->field[field->index] = field;
98 field->usage = (struct hid_usage *)(field + 1);
282bfd4c 99 field->value = (s32 *)(field->usage + usages);
dde5845a
JK		 100 field->report = report;
101
102 return field;
103}
104
105/*
106 * Open a collection. The type/usage is pushed on the stack.
107 */
108
109static int open_collection(struct hid_parser *parser, unsigned type)
110{
111 struct hid_collection *collection;
112 unsigned usage;
113
114 usage = parser->local.usage[0];
115
116 if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) {
58037eb9 117 dbg_hid("collection stack overflow\n");
dde5845a
JK		 118 return -1;
119 }
120
121 if (parser->device->maxcollection == parser->device->collection_size) {
122 collection = kmalloc(sizeof(struct hid_collection) *
123 parser->device->collection_size * 2, GFP_KERNEL);
124 if (collection == NULL) {
58037eb9 125 dbg_hid("failed to reallocate collection array\n");
dde5845a
JK		 126 return -1;
127 }
128 memcpy(collection, parser->device->collection,
129 sizeof(struct hid_collection) *
130 parser->device->collection_size);
131 memset(collection + parser->device->collection_size, 0,
132 sizeof(struct hid_collection) *
133 parser->device->collection_size);
134 kfree(parser->device->collection);
135 parser->device->collection = collection;
136 parser->device->collection_size *= 2;
137 }
138
139 parser->collection_stack[parser->collection_stack_ptr++] =
140 parser->device->maxcollection;
141
142 collection = parser->device->collection +
143 parser->device->maxcollection++;
144 collection->type = type;
145 collection->usage = usage;
146 collection->level = parser->collection_stack_ptr - 1;
147
148 if (type == HID_COLLECTION_APPLICATION)
149 parser->device->maxapplication++;
150
151 return 0;
152}
153
154/*
155 * Close a collection.
156 */
157
158static int close_collection(struct hid_parser *parser)
159{
160 if (!parser->collection_stack_ptr) {
58037eb9 161 dbg_hid("collection stack underflow\n");
dde5845a
JK		 162 return -1;
163 }
164 parser->collection_stack_ptr--;
165 return 0;
166}
167
168/*
169 * Climb up the stack, search for the specified collection type
170 * and return the usage.
171 */
172
173static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type)
174{
175 int n;
176 for (n = parser->collection_stack_ptr - 1; n >= 0; n--)
177 if (parser->device->collection[parser->collection_stack[n]].type == type)
178 return parser->device->collection[parser->collection_stack[n]].usage;
179 return 0; /* we know nothing about this usage type */
180}
181
182/*
183 * Add a usage to the temporary parser table.
184 */
185
186static int hid_add_usage(struct hid_parser *parser, unsigned usage)
187{
188 if (parser->local.usage_index >= HID_MAX_USAGES) {
58037eb9 189 dbg_hid("usage index exceeded\n");
dde5845a
JK		 190 return -1;
191 }
192 parser->local.usage[parser->local.usage_index] = usage;
193 parser->local.collection_index[parser->local.usage_index] =
194 parser->collection_stack_ptr ?
195 parser->collection_stack[parser->collection_stack_ptr - 1] : 0;
196 parser->local.usage_index++;
197 return 0;
198}
199
200/*
201 * Register a new field for this report.
202 */
203
204static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags)
205{
206 struct hid_report *report;
207 struct hid_field *field;
208 int usages;
209 unsigned offset;
210 int i;
211
212 if (!(report = hid_register_report(parser->device, report_type, parser->global.report_id))) {
58037eb9 213 dbg_hid("hid_register_report failed\n");
dde5845a
JK		 214 return -1;
215 }
216
217 if (parser->global.logical_maximum < parser->global.logical_minimum) {
58037eb9 218 dbg_hid("logical range invalid %d %d\n", parser->global.logical_minimum, parser->global.logical_maximum);
dde5845a
JK		 219 return -1;
220 }
221
222 offset = report->size;
223 report->size += parser->global.report_size * parser->global.report_count;
224
225 if (!parser->local.usage_index) /* Ignore padding fields */
226 return 0;
227
228 usages = max_t(int, parser->local.usage_index, parser->global.report_count);
229
230 if ((field = hid_register_field(report, usages, parser->global.report_count)) == NULL)
231 return 0;
232
233 field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
234 field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
235 field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
236
237 for (i = 0; i < usages; i++) {
238 int j = i;
239 /* Duplicate the last usage we parsed if we have excess values */
240 if (i >= parser->local.usage_index)
241 j = parser->local.usage_index - 1;
242 field->usage[i].hid = parser->local.usage[j];
243 field->usage[i].collection_index =
244 parser->local.collection_index[j];
245 }
246
247 field->maxusage = usages;
248 field->flags = flags;
249 field->report_offset = offset;
250 field->report_type = report_type;
251 field->report_size = parser->global.report_size;
252 field->report_count = parser->global.report_count;
253 field->logical_minimum = parser->global.logical_minimum;
254 field->logical_maximum = parser->global.logical_maximum;
255 field->physical_minimum = parser->global.physical_minimum;
256 field->physical_maximum = parser->global.physical_maximum;
257 field->unit_exponent = parser->global.unit_exponent;
258 field->unit = parser->global.unit;
259
260 return 0;
261}
262
263/*
264 * Read data value from item.
265 */
266
267static u32 item_udata(struct hid_item *item)
268{
269 switch (item->size) {
880d29f1
JS		 270 case 1: return item->data.u8;
271 case 2: return item->data.u16;
272 case 4: return item->data.u32;
dde5845a
JK		 273 }
274 return 0;
275}
276
277static s32 item_sdata(struct hid_item *item)
278{
279 switch (item->size) {
880d29f1
JS		 280 case 1: return item->data.s8;
281 case 2: return item->data.s16;
282 case 4: return item->data.s32;
dde5845a
JK		 283 }
284 return 0;
285}
286
287/*
288 * Process a global item.
289 */
290
291static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
292{
293 switch (item->tag) {
880d29f1 294 case HID_GLOBAL_ITEM_TAG_PUSH:
dde5845a 295
880d29f1
JS		 296 if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
297 dbg_hid("global enviroment stack overflow\n");
298 return -1;
299 }
dde5845a 300
880d29f1
JS		 301 memcpy(parser->global_stack + parser->global_stack_ptr++,
302 &parser->global, sizeof(struct hid_global));
303 return 0;
dde5845a 304
880d29f1 305 case HID_GLOBAL_ITEM_TAG_POP:
dde5845a 306
880d29f1
JS		 307 if (!parser->global_stack_ptr) {
308 dbg_hid("global enviroment stack underflow\n");
309 return -1;
310 }
dde5845a 311
880d29f1
JS		 312 memcpy(&parser->global, parser->global_stack +
313 --parser->global_stack_ptr, sizeof(struct hid_global));
314 return 0;
dde5845a 315
880d29f1
JS		 316 case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
317 parser->global.usage_page = item_udata(item);
318 return 0;
dde5845a 319
880d29f1
JS		 320 case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
321 parser->global.logical_minimum = item_sdata(item);
322 return 0;
dde5845a 323
880d29f1
JS		 324 case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
325 if (parser->global.logical_minimum < 0)
326 parser->global.logical_maximum = item_sdata(item);
327 else
328 parser->global.logical_maximum = item_udata(item);
329 return 0;
dde5845a 330
880d29f1
JS		 331 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
332 parser->global.physical_minimum = item_sdata(item);
333 return 0;
dde5845a 334
880d29f1
JS		 335 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
336 if (parser->global.physical_minimum < 0)
337 parser->global.physical_maximum = item_sdata(item);
338 else
339 parser->global.physical_maximum = item_udata(item);
340 return 0;
dde5845a 341
880d29f1
JS		 342 case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
343 parser->global.unit_exponent = item_sdata(item);
344 return 0;
dde5845a 345
880d29f1
JS		 346 case HID_GLOBAL_ITEM_TAG_UNIT:
347 parser->global.unit = item_udata(item);
348 return 0;
dde5845a 349
880d29f1
JS		 350 case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
351 parser->global.report_size = item_udata(item);
352 if (parser->global.report_size > 32) {
353 dbg_hid("invalid report_size %d\n",
354 parser->global.report_size);
355 return -1;
356 }
357 return 0;
dde5845a 358
880d29f1
JS		 359 case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
360 parser->global.report_count = item_udata(item);
361 if (parser->global.report_count > HID_MAX_USAGES) {
362 dbg_hid("invalid report_count %d\n",
363 parser->global.report_count);
364 return -1;
365 }
366 return 0;
dde5845a 367
880d29f1
JS		 368 case HID_GLOBAL_ITEM_TAG_REPORT_ID:
369 parser->global.report_id = item_udata(item);
370 if (parser->global.report_id == 0) {
371 dbg_hid("report_id 0 is invalid\n");
dde5845a 372 return -1;
880d29f1
JS		 373 }
374 return 0;
375
376 default:
377 dbg_hid("unknown global tag 0x%x\n", item->tag);
378 return -1;
dde5845a
JK		 379 }
380}
381
382/*
383 * Process a local item.
384 */
385
386static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
387{
388 __u32 data;
389 unsigned n;
390
dde5845a
JK		 391 data = item_udata(item);
392
393 switch (item->tag) {
880d29f1
JS		 394 case HID_LOCAL_ITEM_TAG_DELIMITER:
395
396 if (data) {
397 /*
398 * We treat items before the first delimiter
399 * as global to all usage sets (branch 0).
400 * In the moment we process only these global
401 * items and the first delimiter set.
402 */
403 if (parser->local.delimiter_depth != 0) {
404 dbg_hid("nested delimiters\n");
405 return -1;
dde5845a 406 }
880d29f1
JS		 407 parser->local.delimiter_depth++;
408 parser->local.delimiter_branch++;
409 } else {
410 if (parser->local.delimiter_depth < 1) {
411 dbg_hid("bogus close delimiter\n");
412 return -1;
dde5845a 413 }
880d29f1
JS		 414 parser->local.delimiter_depth--;
415 }
416 return 1;
dde5845a 417
880d29f1 418 case HID_LOCAL_ITEM_TAG_USAGE:
dde5845a 419
880d29f1
JS		 420 if (parser->local.delimiter_branch > 1) {
421 dbg_hid("alternative usage ignored\n");
422 return 0;
423 }
dde5845a 424
880d29f1
JS		 425 if (item->size <= 2)
426 data = (parser->global.usage_page << 16) + data;
dde5845a 427
880d29f1 428 return hid_add_usage(parser, data);
dde5845a 429
880d29f1 430 case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
dde5845a 431
880d29f1
JS		 432 if (parser->local.delimiter_branch > 1) {
433 dbg_hid("alternative usage ignored\n");
dde5845a 434 return 0;
880d29f1 435 }
dde5845a 436
880d29f1
JS		 437 if (item->size <= 2)
438 data = (parser->global.usage_page << 16) + data;
dde5845a 439
880d29f1
JS		 440 parser->local.usage_minimum = data;
441 return 0;
dde5845a 442
880d29f1 443 case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
dde5845a 444
880d29f1
JS		 445 if (parser->local.delimiter_branch > 1) {
446 dbg_hid("alternative usage ignored\n");
dde5845a 447 return 0;
880d29f1 448 }
dde5845a 449
880d29f1
JS		 450 if (item->size <= 2)
451 data = (parser->global.usage_page << 16) + data;
dde5845a 452
880d29f1
JS		 453 for (n = parser->local.usage_minimum; n <= data; n++)
454 if (hid_add_usage(parser, n)) {
455 dbg_hid("hid_add_usage failed\n");
456 return -1;
457 }
458 return 0;
459
460 default:
461
462 dbg_hid("unknown local item tag 0x%x\n", item->tag);
463 return 0;
dde5845a
JK		 464 }
465 return 0;
466}
467
468/*
469 * Process a main item.
470 */
471
472static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
473{
474 __u32 data;
475 int ret;
476
477 data = item_udata(item);
478
479 switch (item->tag) {
880d29f1
JS		 480 case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
481 ret = open_collection(parser, data & 0xff);
482 break;
483 case HID_MAIN_ITEM_TAG_END_COLLECTION:
484 ret = close_collection(parser);
485 break;
486 case HID_MAIN_ITEM_TAG_INPUT:
487 ret = hid_add_field(parser, HID_INPUT_REPORT, data);
488 break;
489 case HID_MAIN_ITEM_TAG_OUTPUT:
490 ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
491 break;
492 case HID_MAIN_ITEM_TAG_FEATURE:
493 ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
494 break;
495 default:
496 dbg_hid("unknown main item tag 0x%x\n", item->tag);
497 ret = 0;
dde5845a
JK		 498 }
499
500 memset(&parser->local, 0, sizeof(parser->local)); /* Reset the local parser environment */
501
502 return ret;
503}
504
505/*
506 * Process a reserved item.
507 */
508
509static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
510{
58037eb9 511 dbg_hid("reserved item type, tag 0x%x\n", item->tag);
dde5845a
JK		 512 return 0;
513}
514
515/*
516 * Free a report and all registered fields. The field->usage and
517 * field->value table's are allocated behind the field, so we need
518 * only to free(field) itself.
519 */
520
521static void hid_free_report(struct hid_report *report)
522{
523 unsigned n;
524
525 for (n = 0; n < report->maxfield; n++)
526 kfree(report->field[n]);
527 kfree(report);
528}
529
530/*
531 * Free a device structure, all reports, and all fields.
532 */
533
85cdaf52 534static void hid_device_release(struct device *dev)
dde5845a 535{
85cdaf52
JS		 536 struct hid_device *device = container_of(dev, struct hid_device, dev);
537 unsigned i, j;
dde5845a
JK		 538
539 for (i = 0; i < HID_REPORT_TYPES; i++) {
540 struct hid_report_enum *report_enum = device->report_enum + i;
541
542 for (j = 0; j < 256; j++) {
543 struct hid_report *report = report_enum->report_id_hash[j];
544 if (report)
545 hid_free_report(report);
546 }
547 }
548
549 kfree(device->rdesc);
767fe787 550 kfree(device->collection);
dde5845a
JK		 551 kfree(device);
552}
553
554/*
555 * Fetch a report description item from the data stream. We support long
556 * items, though they are not used yet.
557 */
558
559static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
560{
561 u8 b;
562
563 if ((end - start) <= 0)
564 return NULL;
565
566 b = *start++;
567
568 item->type = (b >> 2) & 3;
569 item->tag = (b >> 4) & 15;
570
571 if (item->tag == HID_ITEM_TAG_LONG) {
572
573 item->format = HID_ITEM_FORMAT_LONG;
574
575 if ((end - start) < 2)
576 return NULL;
577
578 item->size = *start++;
579 item->tag = *start++;
580
581 if ((end - start) < item->size)
582 return NULL;
583
584 item->data.longdata = start;
585 start += item->size;
586 return start;
587 }
588
589 item->format = HID_ITEM_FORMAT_SHORT;
590 item->size = b & 3;
591
592 switch (item->size) {
880d29f1
JS		 593 case 0:
594 return start;
dde5845a 595
880d29f1
JS		 596 case 1:
597 if ((end - start) < 1)
598 return NULL;
599 item->data.u8 = *start++;
600 return start;
601
602 case 2:
603 if ((end - start) < 2)
604 return NULL;
605 item->data.u16 = get_unaligned_le16(start);
606 start = (__u8 *)((__le16 *)start + 1);
607 return start;
608
609 case 3:
610 item->size++;
611 if ((end - start) < 4)
612 return NULL;
613 item->data.u32 = get_unaligned_le32(start);
614 start = (__u8 *)((__le32 *)start + 1);
615 return start;
dde5845a
JK		 616 }
617
618 return NULL;
619}
620
85cdaf52
JS		 621/**
622 * hid_parse_report - parse device report
623 *
624 * @device: hid device
625 * @start: report start
626 * @size: report size
627 *
dde5845a
JK		 628 * Parse a report description into a hid_device structure. Reports are
629 * enumerated, fields are attached to these reports.
85cdaf52 630 * 0 returned on success, otherwise nonzero error value.
dde5845a 631 */
85cdaf52
JS		 632int hid_parse_report(struct hid_device *device, __u8 *start,
633 unsigned size)
dde5845a 634{
dde5845a
JK		 635 struct hid_parser *parser;
636 struct hid_item item;
637 __u8 *end;
85cdaf52 638 int ret;
dde5845a
JK		 639 static int (*dispatch_type[])(struct hid_parser *parser,
640 struct hid_item *item) = {
641 hid_parser_main,
642 hid_parser_global,
643 hid_parser_local,
644 hid_parser_reserved
645 };
646
c500c971 647 if (device->driver->report_fixup)
73e4008d 648 start = device->driver->report_fixup(device, start, &size);
c500c971 649
1721a238 650 device->rdesc = kmemdup(start, size, GFP_KERNEL);
85cdaf52
JS		 651 if (device->rdesc == NULL)
652 return -ENOMEM;
dde5845a
JK		 653 device->rsize = size;
654
85cdaf52
JS		 655 parser = vmalloc(sizeof(struct hid_parser));
656 if (!parser) {
657 ret = -ENOMEM;
658 goto err;
dde5845a 659 }
85cdaf52 660
47a80edb 661 memset(parser, 0, sizeof(struct hid_parser));
dde5845a
JK		 662 parser->device = device;
663
664 end = start + size;
85cdaf52 665 ret = -EINVAL;
dde5845a
JK		 666 while ((start = fetch_item(start, end, &item)) != NULL) {
667
668 if (item.format != HID_ITEM_FORMAT_SHORT) {
58037eb9 669 dbg_hid("unexpected long global item\n");
85cdaf52 670 goto err;
dde5845a
JK		 671 }
672
673 if (dispatch_type[item.type](parser, &item)) {
58037eb9 674 dbg_hid("item %u %u %u %u parsing failed\n",
dde5845a 675 item.format, (unsigned)item.size, (unsigned)item.type, (unsigned)item.tag);
85cdaf52 676 goto err;
dde5845a
JK		 677 }
678
679 if (start == end) {
680 if (parser->collection_stack_ptr) {
58037eb9 681 dbg_hid("unbalanced collection at end of report description\n");
85cdaf52 682 goto err;
dde5845a
JK		 683 }
684 if (parser->local.delimiter_depth) {
58037eb9 685 dbg_hid("unbalanced delimiter at end of report description\n");
85cdaf52 686 goto err;
dde5845a 687 }
47a80edb 688 vfree(parser);
85cdaf52 689 return 0;
dde5845a
JK		 690 }
691 }
692
58037eb9 693 dbg_hid("item fetching failed at offset %d\n", (int)(end - start));
85cdaf52 694err:
47a80edb 695 vfree(parser);
85cdaf52 696 return ret;
dde5845a 697}
229695e5 698EXPORT_SYMBOL_GPL(hid_parse_report);
dde5845a
JK		 699
700/*
701 * Convert a signed n-bit integer to signed 32-bit integer. Common
702 * cases are done through the compiler, the screwed things has to be
703 * done by hand.
704 */
705
706static s32 snto32(__u32 value, unsigned n)
707{
708 switch (n) {
880d29f1
JS		 709 case 8: return ((__s8)value);
710 case 16: return ((__s16)value);
711 case 32: return ((__s32)value);
dde5845a
JK		 712 }
713 return value & (1 << (n - 1)) ? value | (-1 << n) : value;
714}
715
716/*
717 * Convert a signed 32-bit integer to a signed n-bit integer.
718 */
719
720static u32 s32ton(__s32 value, unsigned n)
721{
722 s32 a = value >> (n - 1);
723 if (a && a != -1)
724 return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
725 return value & ((1 << n) - 1);
726}
727
728/*
729 * Extract/implement a data field from/to a little endian report (bit array).
730 *
731 * Code sort-of follows HID spec:
732 * http://www.usb.org/developers/devclass_docs/HID1_11.pdf
733 *
734 * While the USB HID spec allows unlimited length bit fields in "report
735 * descriptors", most devices never use more than 16 bits.
736 * One model of UPS is claimed to report "LINEV" as a 32-bit field.
737 * Search linux-kernel and linux-usb-devel archives for "hid-core extract".
738 */
739
740static __inline__ __u32 extract(__u8 *report, unsigned offset, unsigned n)
741{
742 u64 x;
743
c4124c9b
JK		 744 if (n > 32)
745 printk(KERN_WARNING "HID: extract() called with n (%d) > 32! (%s)\n",
746 n, current->comm);
dde5845a
JK		 747
748 report += offset >> 3; /* adjust byte index */
229695e5 749 offset &= 7; /* now only need bit offset into one byte */
c105068f 750 x = get_unaligned_le64(report);
229695e5 751 x = (x >> offset) & ((1ULL << n) - 1); /* extract bit field */
dde5845a
JK		 752 return (u32) x;
753}
754
755/*
756 * "implement" : set bits in a little endian bit stream.
757 * Same concepts as "extract" (see comments above).
758 * The data mangled in the bit stream remains in little endian
759 * order the whole time. It make more sense to talk about
760 * endianness of register values by considering a register
761 * a "cached" copy of the little endiad bit stream.
762 */
763static __inline__ void implement(__u8 *report, unsigned offset, unsigned n, __u32 value)
764{
6f0168d2 765 u64 x;
dde5845a
JK		 766 u64 m = (1ULL << n) - 1;
767
c4124c9b
JK		 768 if (n > 32)
769 printk(KERN_WARNING "HID: implement() called with n (%d) > 32! (%s)\n",
770 n, current->comm);
dde5845a 771
c4124c9b
JK		 772 if (value > m)
773 printk(KERN_WARNING "HID: implement() called with too large value %d! (%s)\n",
774 value, current->comm);
dde5845a
JK		 775 WARN_ON(value > m);
776 value &= m;
777
778 report += offset >> 3;
779 offset &= 7;
780
6f0168d2
HH		 781 x = get_unaligned_le64(report);
782 x &= ~(m << offset);
783 x |= ((u64)value) << offset;
784 put_unaligned_le64(x, report);
dde5845a
JK		 785}
786
787/*
788 * Search an array for a value.
789 */
790
791static __inline__ int search(__s32 *array, __s32 value, unsigned n)
792{
793 while (n--) {
794 if (*array++ == value)
795 return 0;
796 }
797 return -1;
798}
799
85cdaf52
JS		 800/**
801 * hid_match_report - check if driver's raw_event should be called
802 *
803 * @hid: hid device
804 * @report_type: type to match against
805 *
806 * compare hid->driver->report_table->report_type to report->type
807 */
808static int hid_match_report(struct hid_device *hid, struct hid_report *report)
dde5845a 809{
85cdaf52
JS		 810 const struct hid_report_id *id = hid->driver->report_table;
811
812 if (!id) /* NULL means all */
813 return 1;
814
815 for (; id->report_type != HID_TERMINATOR; id++)
816 if (id->report_type == HID_ANY_ID ||
817 id->report_type == report->type)
818 return 1;
819 return 0;
820}
821
822/**
823 * hid_match_usage - check if driver's event should be called
824 *
825 * @hid: hid device
826 * @usage: usage to match against
827 *
828 * compare hid->driver->usage_table->usage_{type,code} to
829 * usage->usage_{type,code}
830 */
831static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage)
832{
833 const struct hid_usage_id *id = hid->driver->usage_table;
834
835 if (!id) /* NULL means all */
836 return 1;
837
838 for (; id->usage_type != HID_ANY_ID - 1; id++)
839 if ((id->usage_hid == HID_ANY_ID ||
840 id->usage_hid == usage->hid) &&
841 (id->usage_type == HID_ANY_ID ||
842 id->usage_type == usage->type) &&
843 (id->usage_code == HID_ANY_ID ||
844 id->usage_code == usage->code))
845 return 1;
846 return 0;
847}
848
849static void hid_process_event(struct hid_device *hid, struct hid_field *field,
850 struct hid_usage *usage, __s32 value, int interrupt)
851{
852 struct hid_driver *hdrv = hid->driver;
853 int ret;
854
cd667ce2 855 hid_dump_input(hid, usage, value);
85cdaf52
JS		 856
857 if (hdrv && hdrv->event && hid_match_usage(hid, usage)) {
858 ret = hdrv->event(hid, field, usage, value);
859 if (ret != 0) {
860 if (ret < 0)
861 dbg_hid("%s's event failed with %d\n",
862 hdrv->name, ret);
863 return;
864 }
865 }
866
dde5845a
JK		 867 if (hid->claimed & HID_CLAIMED_INPUT)
868 hidinput_hid_event(hid, field, usage, value);
aa938f79
JK		 869 if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event)
870 hid->hiddev_hid_event(hid, field, usage, value);
dde5845a
JK		 871}
872
873/*
874 * Analyse a received field, and fetch the data from it. The field
875 * content is stored for next report processing (we do differential
876 * reporting to the layer).
877 */
878
abdff0f7
AB		 879static void hid_input_field(struct hid_device *hid, struct hid_field *field,
880 __u8 *data, int interrupt)
dde5845a
JK		 881{
882 unsigned n;
883 unsigned count = field->report_count;
884 unsigned offset = field->report_offset;
885 unsigned size = field->report_size;
886 __s32 min = field->logical_minimum;
887 __s32 max = field->logical_maximum;
888 __s32 *value;
889
890 if (!(value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC)))
891 return;
892
893 for (n = 0; n < count; n++) {
894
895 value[n] = min < 0 ? snto32(extract(data, offset + n * size, size), size) :
896 extract(data, offset + n * size, size);
897
898 if (!(field->flags & HID_MAIN_ITEM_VARIABLE) /* Ignore report if ErrorRollOver */
899 && value[n] >= min && value[n] <= max
900 && field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
901 goto exit;
902 }
903
904 for (n = 0; n < count; n++) {
905
906 if (HID_MAIN_ITEM_VARIABLE & field->flags) {
907 hid_process_event(hid, field, &field->usage[n], value[n], interrupt);
908 continue;
909 }
910
911 if (field->value[n] >= min && field->value[n] <= max
912 && field->usage[field->value[n] - min].hid
913 && search(value, field->value[n], count))
914 hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt);
915
916 if (value[n] >= min && value[n] <= max
917 && field->usage[value[n] - min].hid
918 && search(field->value, value[n], count))
919 hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt);
920 }
921
922 memcpy(field->value, value, count * sizeof(__s32));
923exit:
924 kfree(value);
925}
dde5845a
JK		 926
927/*
928 * Output the field into the report.
929 */
930
931static void hid_output_field(struct hid_field *field, __u8 *data)
932{
933 unsigned count = field->report_count;
934 unsigned offset = field->report_offset;
935 unsigned size = field->report_size;
936 unsigned n;
937
938 for (n = 0; n < count; n++) {
939 if (field->logical_minimum < 0) /* signed values */
940 implement(data, offset + n * size, size, s32ton(field->value[n], size));
941 else /* unsigned values */
942 implement(data, offset + n * size, size, field->value[n]);
943 }
944}
945
946/*
947 * Create a report.
948 */
949
229695e5 950void hid_output_report(struct hid_report *report, __u8 *data)
dde5845a
JK		 951{
952 unsigned n;
953
954 if (report->id > 0)
955 *data++ = report->id;
956
75c28df8 957 memset(data, 0, ((report->size - 1) >> 3) + 1);
dde5845a
JK		 958 for (n = 0; n < report->maxfield; n++)
959 hid_output_field(report->field[n], data);
960}
229695e5 961EXPORT_SYMBOL_GPL(hid_output_report);
dde5845a
JK		 962
963/*
964 * Set a field value. The report this field belongs to has to be
965 * created and transferred to the device, to set this value in the
966 * device.
967 */
968
969int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
970{
971 unsigned size = field->report_size;
972
cd667ce2 973 hid_dump_input(field->report->device, field->usage + offset, value);
dde5845a
JK		 974
975 if (offset >= field->report_count) {
58037eb9 976 dbg_hid("offset (%d) exceeds report_count (%d)\n", offset, field->report_count);
dde5845a
JK		 977 return -1;
978 }
979 if (field->logical_minimum < 0) {
980 if (value != snto32(s32ton(value, size), size)) {
58037eb9 981 dbg_hid("value %d is out of range\n", value);
dde5845a
JK		 982 return -1;
983 }
984 }
985 field->value[offset] = value;
986 return 0;
987}
229695e5 988EXPORT_SYMBOL_GPL(hid_set_field);
dde5845a 989
85cdaf52
JS		 990static struct hid_report *hid_get_report(struct hid_report_enum *report_enum,
991 const u8 *data)
aa8de2f0 992{
aa8de2f0 993 struct hid_report *report;
85cdaf52 994 unsigned int n = 0; /* Normally report number is 0 */
aa8de2f0 995
85cdaf52
JS		 996 /* Device uses numbered reports, data[0] is report number */
997 if (report_enum->numbered)
998 n = *data;
aa8de2f0 999
85cdaf52
JS		 1000 report = report_enum->report_id_hash[n];
1001 if (report == NULL)
1002 dbg_hid("undefined report_id %u received\n", n);
aa8de2f0 1003
85cdaf52
JS		 1004 return report;
1005}
aa8de2f0 1006
85cdaf52
JS		 1007void hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
1008 int interrupt)
1009{
1010 struct hid_report_enum *report_enum = hid->report_enum + type;
1011 struct hid_report *report;
1012 unsigned int a;
1013 int rsize, csize = size;
1014 u8 *cdata = data;
aa8de2f0 1015
85cdaf52
JS		 1016 report = hid_get_report(report_enum, data);
1017 if (!report)
1018 return;
aa8de2f0 1019
85cdaf52
JS		 1020 if (report_enum->numbered) {
1021 cdata++;
1022 csize--;
aa8de2f0
JK		 1023 }
1024
1025 rsize = ((report->size - 1) >> 3) + 1;
1026
85cdaf52
JS		 1027 if (csize < rsize) {
1028 dbg_hid("report %d is too short, (%d < %d)\n", report->id,
1029 csize, rsize);
1030 memset(cdata + csize, 0, rsize - csize);
aa8de2f0
JK		 1031 }
1032
1033 if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event)
1034 hid->hiddev_report_event(hid, report);
5a38f2c7
AO		 1035 if (hid->claimed & HID_CLAIMED_HIDRAW)
1036 hidraw_report_event(hid, data, size);
aa8de2f0 1037
85cdaf52
JS		 1038 for (a = 0; a < report->maxfield; a++)
1039 hid_input_field(hid, report->field[a], cdata, interrupt);
aa8de2f0
JK		 1040
1041 if (hid->claimed & HID_CLAIMED_INPUT)
1042 hidinput_report_event(hid, report);
85cdaf52
JS		 1043}
1044EXPORT_SYMBOL_GPL(hid_report_raw_event);
1045
1046/**
1047 * hid_input_report - report data from lower layer (usb, bt...)
1048 *
1049 * @hid: hid device
1050 * @type: HID report type (HID_*_REPORT)
1051 * @data: report contents
1052 * @size: size of data parameter
ff9b00a2 1053 * @interrupt: distinguish between interrupt and control transfers
85cdaf52
JS		 1054 *
1055 * This is data entry for lower layers.
1056 */
1057int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt)
1058{
76c317d6
JL		 1059 struct hid_report_enum *report_enum;
1060 struct hid_driver *hdrv;
85cdaf52 1061 struct hid_report *report;
cd667ce2 1062 char *buf;
85cdaf52
JS		 1063 unsigned int i;
1064 int ret;
1065
1066 if (!hid || !hid->driver)
1067 return -ENODEV;
76c317d6
JL		 1068 report_enum = hid->report_enum + type;
1069 hdrv = hid->driver;
85cdaf52
JS		 1070
1071 if (!size) {
1072 dbg_hid("empty report\n");
1073 return -1;
1074 }
1075
d1ff6522 1076 buf = kmalloc(sizeof(char) * HID_DEBUG_BUFSIZE, GFP_ATOMIC);
cd667ce2 1077
f77e347b 1078 if (!buf)
cd667ce2 1079 goto nomem;
85cdaf52
JS		 1080
1081 /* dump the report */
cd667ce2 1082 snprintf(buf, HID_DEBUG_BUFSIZE - 1,
1caea61e 1083 "\nreport (size %u) (%snumbered) = ", size, report_enum->numbered ? "" : "un");
cd667ce2 1084 hid_debug_event(hid, buf);
1caea61e 1085
cd667ce2
JK		 1086 for (i = 0; i < size; i++) {
1087 snprintf(buf, HID_DEBUG_BUFSIZE - 1,
1088 " %02x", data[i]);
1089 hid_debug_event(hid, buf);
1090 }
1091 hid_debug_event(hid, "\n");
cd667ce2 1092 kfree(buf);
85cdaf52 1093
cd667ce2 1094nomem:
1caea61e
JK		 1095 report = hid_get_report(report_enum, data);
1096
f77e347b 1097 if (!report)
1caea61e 1098 return -1;
85cdaf52
JS		 1099
1100 if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) {
1101 ret = hdrv->raw_event(hid, report, data, size);
1102 if (ret != 0)
1103 return ret < 0 ? ret : 0;
1104 }
1105
1106 hid_report_raw_event(hid, type, data, size, interrupt);
aa8de2f0
JK		 1107
1108 return 0;
1109}
1110EXPORT_SYMBOL_GPL(hid_input_report);
1111
0f37cd03
JK		 1112static bool hid_match_one_id(struct hid_device *hdev,
1113 const struct hid_device_id *id)
1114{
1115 return id->bus == hdev->bus &&
1116 (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) &&
1117 (id->product == HID_ANY_ID || id->product == hdev->product);
1118}
1119
1120static const struct hid_device_id *hid_match_id(struct hid_device *hdev,
1121 const struct hid_device_id *id)
1122{
1123 for (; id->bus; id++)
1124 if (hid_match_one_id(hdev, id))
1125 return id;
1126
1127 return NULL;
1128}
1129
1130static const struct hid_device_id hid_hiddev_list[] = {
c0bd6a42
RH		 1131 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) },
1132 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) },
0f37cd03
JK		 1133 { }
1134};
1135
1136static bool hid_hiddev(struct hid_device *hdev)
1137{
1138 return !!hid_match_id(hdev, hid_hiddev_list);
1139}
1140
93c10132
JS		 1141int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
1142{
1143 static const char *types[] = { "Device", "Pointer", "Mouse", "Device",
1144 "Joystick", "Gamepad", "Keyboard", "Keypad",
1145 "Multi-Axis Controller"
1146 };
1147 const char *type, *bus;
1148 char buf[64];
1149 unsigned int i;
1150 int len;
1151
b5e5a37e
BN		 1152 if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE)
1153 connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV);
3a343ee4
DM		 1154 if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE)
1155 connect_mask |= HID_CONNECT_HIDINPUT_FORCE;
93c10132
JS		 1156 if (hdev->bus != BUS_USB)
1157 connect_mask &= ~HID_CONNECT_HIDDEV;
0f37cd03
JK		 1158 if (hid_hiddev(hdev))
1159 connect_mask |= HID_CONNECT_HIDDEV_FORCE;
93c10132
JS		 1160
1161 if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,
1162 connect_mask & HID_CONNECT_HIDINPUT_FORCE))
1163 hdev->claimed |= HID_CLAIMED_INPUT;
1164 if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect &&
1165 !hdev->hiddev_connect(hdev,
1166 connect_mask & HID_CONNECT_HIDDEV_FORCE))
1167 hdev->claimed |= HID_CLAIMED_HIDDEV;
1168 if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev))
1169 hdev->claimed |= HID_CLAIMED_HIDRAW;
1170
1171 if (!hdev->claimed) {
1172 dev_err(&hdev->dev, "claimed by neither input, hiddev nor "
1173 "hidraw\n");
1174 return -ENODEV;
1175 }
1176
1177 if ((hdev->claimed & HID_CLAIMED_INPUT) &&
1178 (connect_mask & HID_CONNECT_FF) && hdev->ff_init)
1179 hdev->ff_init(hdev);
1180
1181 len = 0;
1182 if (hdev->claimed & HID_CLAIMED_INPUT)
1183 len += sprintf(buf + len, "input");
1184 if (hdev->claimed & HID_CLAIMED_HIDDEV)
1185 len += sprintf(buf + len, "%shiddev%d", len ? "," : "",
1186 hdev->minor);
1187 if (hdev->claimed & HID_CLAIMED_HIDRAW)
1188 len += sprintf(buf + len, "%shidraw%d", len ? "," : "",
1189 ((struct hidraw *)hdev->hidraw)->minor);
1190
1191 type = "Device";
1192 for (i = 0; i < hdev->maxcollection; i++) {
1193 struct hid_collection *col = &hdev->collection[i];
1194 if (col->type == HID_COLLECTION_APPLICATION &&
1195 (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
1196 (col->usage & 0xffff) < ARRAY_SIZE(types)) {
1197 type = types[col->usage & 0xffff];
1198 break;
1199 }
1200 }
1201
1202 switch (hdev->bus) {
1203 case BUS_USB:
1204 bus = "USB";
1205 break;
1206 case BUS_BLUETOOTH:
1207 bus = "BLUETOOTH";
1208 break;
1209 default:
1210 bus = "<UNKNOWN>";
1211 }
1212
1213 dev_info(&hdev->dev, "%s: %s HID v%x.%02x %s [%s] on %s\n",
1214 buf, bus, hdev->version >> 8, hdev->version & 0xff,
1215 type, hdev->name, hdev->phys);
1216
1217 return 0;
1218}
1219EXPORT_SYMBOL_GPL(hid_connect);
1220
c4c259bc
JK		 1221void hid_disconnect(struct hid_device *hdev)
1222{
1223 if (hdev->claimed & HID_CLAIMED_INPUT)
1224 hidinput_disconnect(hdev);
1225 if (hdev->claimed & HID_CLAIMED_HIDDEV)
1226 hdev->hiddev_disconnect(hdev);
1227 if (hdev->claimed & HID_CLAIMED_HIDRAW)
1228 hidraw_disconnect(hdev);
1229}
1230EXPORT_SYMBOL_GPL(hid_disconnect);
1231
bae7eb33 1232/* a list of devices for which there is a specialized driver on HID bus */
85cdaf52 1233static const struct hid_device_id hid_blacklist[] = {
b6353f4f 1234 { HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M1968) },
6dec143a 1235 { HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M2256) },
14a21cd4
JS		 1236 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
1237 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
b7e1b203 1238 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) },
c0dbcc33
SK		 1239#if defined(CONFIG_HID_ACRUX_FF) || defined(CONFIG_HID_ACRUX_FF_MODULE)
1240 { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) },
1241#endif
df9bcace 1242 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ATV_IRCONTROL) },
8c19a515
JS		 1243 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
1244 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
128537ce 1245 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
a462230e 1246 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) },
8c19a515
JS		 1247 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1248 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1249 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1250 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1251 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1252 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1253 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1254 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1255 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1256 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1257 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
fef3f571
RF		 1258 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) },
1259 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) },
1260 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) },
8c19a515
JS		 1261 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) },
1262 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) },
1263 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) },
1264 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1265 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1266 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
ee8a1a0a
JS		 1267 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) },
1268 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) },
1269 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) },
8c19a515
JS		 1270 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1271 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1272 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1273 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1274 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1275 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
a96d6ef3
HR		 1276 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1277 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1278 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
23aeb61e
CSW		 1279 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) },
1280 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) },
1281 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) },
8c19a515
JS		 1282 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1283 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
eaca1386 1284 { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_T91MT) },
cec15a0e 1285 { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
b5635b12 1286 { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
bf280628 1287 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
c3dc66de 1288 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
36213e1e 1289 { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
ba4d8abb 1290 { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
272036ed 1291 { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
3b239cd7 1292 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
1ce31b25 1293 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
fcfacfd3 1294 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
3a370ca1 1295 { HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) },
0f221320
JS		 1296 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) },
1297 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) },
e8d0eab4 1298 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) },
0f221320 1299 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
3f866fbd 1300 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
0c3910c2 1301 { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH) },
83e44918 1302 { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1) },
64b386ea 1303 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
1f243e30 1304 { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
5181e594 1305 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) },
578f3a35 1306 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) },
5181e594 1307 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) },
42859e0b 1308 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) },
949f8fef 1309 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
1e093206 1310 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
c2fd1a4e 1311 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
fdf93aa3 1312 { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
79422741 1313 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
b5635b12 1314 { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
5f22a799
JS		 1315 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
1316 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
1317 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) },
1318 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) },
1319 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) },
1320 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) },
1321 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) },
5f22a799
JS		 1322 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) },
1323 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) },
5f22a799
JS		 1324 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) },
1325 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) },
2c6118e4 1326 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) },
606bd0a8
JS		 1327 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
1328 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },
1329 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
fd30ea8c 1330 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) },
606bd0a8 1331 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
74f292ca 1332 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) },
606bd0a8
JS		 1333 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
1334 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
243b706d 1335 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
32c88cbc 1336 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) },
606bd0a8 1337 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) },
24985cf6
JK		 1338 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) },
1339 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) },
236db47c
BP		 1340 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
1341 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
78a849a6
JS		 1342 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) },
1343 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) },
1344 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) },
1345 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) },
1346 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
3b8006e5 1347 { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
94011f93 1348 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
6e32819e 1349 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) },
1350 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) },
1351 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) },
1352 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) },
1353 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) },
1354 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) },
1355 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) },
1356 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) },
1357 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) },
1358 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) },
1359 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) },
1360 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) },
1361 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) },
1362 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) },
1363 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) },
1364 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) },
1365 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) },
1366 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) },
cd9ec30d 1367 { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
1e762532 1368 { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
49e4739a 1369 { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
f54405db 1370 { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN) },
14bf62cd 1371 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
cb7cf3da 1372 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
980a3da6 1373 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
b355850b 1374 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
bd28ce00 1375 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
f9ce7c28 1376 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
cc6e0bbb 1377 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
d3fb5454 1378 { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM, USB_DEVICE_ID_MTP) },
b6dc7992
PAS		 1379 { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, USB_DEVICE_ID_MTP_STM) },
1380 { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX, USB_DEVICE_ID_MTP_SITRONIX) },
90231e7e 1381 { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
daedb3d6
AH		 1382 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
1383 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
7a84b133
RAG		 1384 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) },
1385 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) },
daedb3d6 1386 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
3ee8f0a2 1387 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) },
daedb3d6 1388 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
f14f526d 1389 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
54001081 1390 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
711a680e 1391 { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
41fa9230 1392 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
f8a489cc
NK		 1393 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
1394 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
1395 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
fac733f0 1396 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
ca2dcd40 1397 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
72a46344 1398 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
00e7f964 1399 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
72a46344 1400 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
8f1acc32 1401 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
daedb3d6
AH		 1402 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
1403 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
a9885c8f 1404 { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
8c19a515 1405
78a849a6 1406 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
85cdaf52
JS		 1407 { }
1408};
1409
3a6f82f7
JS		 1410struct hid_dynid {
1411 struct list_head list;
1412 struct hid_device_id id;
1413};
1414
1415/**
1416 * store_new_id - add a new HID device ID to this driver and re-probe devices
1417 * @driver: target device driver
1418 * @buf: buffer for scanning device ID data
1419 * @count: input size
1420 *
1421 * Adds a new dynamic hid device ID to this driver,
1422 * and causes the driver to probe for all devices again.
1423 */
1424static ssize_t store_new_id(struct device_driver *drv, const char *buf,
1425 size_t count)
1426{
1427 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1428 struct hid_dynid *dynid;
1429 __u32 bus, vendor, product;
1430 unsigned long driver_data = 0;
1431 int ret;
1432
1433 ret = sscanf(buf, "%x %x %x %lx",
1434 &bus, &vendor, &product, &driver_data);
1435 if (ret < 3)
1436 return -EINVAL;
1437
1438 dynid = kzalloc(sizeof(*dynid), GFP_KERNEL);
1439 if (!dynid)
1440 return -ENOMEM;
1441
1442 dynid->id.bus = bus;
1443 dynid->id.vendor = vendor;
1444 dynid->id.product = product;
1445 dynid->id.driver_data = driver_data;
1446
1447 spin_lock(&hdrv->dyn_lock);
1448 list_add_tail(&dynid->list, &hdrv->dyn_list);
1449 spin_unlock(&hdrv->dyn_lock);
1450
1451 ret = 0;
1452 if (get_driver(&hdrv->driver)) {
1453 ret = driver_attach(&hdrv->driver);
1454 put_driver(&hdrv->driver);
1455 }
1456
1457 return ret ? : count;
1458}
1459static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
1460
1461static void hid_free_dynids(struct hid_driver *hdrv)
1462{
1463 struct hid_dynid *dynid, *n;
1464
1465 spin_lock(&hdrv->dyn_lock);
1466 list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) {
1467 list_del(&dynid->list);
1468 kfree(dynid);
1469 }
1470 spin_unlock(&hdrv->dyn_lock);
1471}
1472
1473static const struct hid_device_id *hid_match_device(struct hid_device *hdev,
1474 struct hid_driver *hdrv)
1475{
1476 struct hid_dynid *dynid;
1477
1478 spin_lock(&hdrv->dyn_lock);
1479 list_for_each_entry(dynid, &hdrv->dyn_list, list) {
1480 if (hid_match_one_id(hdev, &dynid->id)) {
1481 spin_unlock(&hdrv->dyn_lock);
1482 return &dynid->id;
1483 }
1484 }
1485 spin_unlock(&hdrv->dyn_lock);
1486
1487 return hid_match_id(hdev, hdrv->id_table);
1488}
1489
85cdaf52
JS		 1490static int hid_bus_match(struct device *dev, struct device_driver *drv)
1491{
1492 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1493 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1494
3a6f82f7 1495 if (!hid_match_device(hdev, hdrv))
85cdaf52
JS		 1496 return 0;
1497
1498 /* generic wants all non-blacklisted */
1499 if (!strncmp(hdrv->name, "generic-", 8))
1500 return !hid_match_id(hdev, hid_blacklist);
1501
1502 return 1;
1503}
1504
1505static int hid_device_probe(struct device *dev)
1506{
1507 struct hid_driver *hdrv = container_of(dev->driver,
1508 struct hid_driver, driver);
1509 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1510 const struct hid_device_id *id;
1511 int ret = 0;
1512
1513 if (!hdev->driver) {
3a6f82f7 1514 id = hid_match_device(hdev, hdrv);
c500c971
JS		 1515 if (id == NULL)
1516 return -ENODEV;
85cdaf52 1517
c500c971
JS		 1518 hdev->driver = hdrv;
1519 if (hdrv->probe) {
1520 ret = hdrv->probe(hdev, id);
1521 } else { /* default probe */
1522 ret = hid_parse(hdev);
1523 if (!ret)
93c10132 1524 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
85cdaf52 1525 }
c500c971
JS		 1526 if (ret)
1527 hdev->driver = NULL;
85cdaf52
JS		 1528 }
1529 return ret;
1530}
1531
1532static int hid_device_remove(struct device *dev)
1533{
1534 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1535 struct hid_driver *hdrv = hdev->driver;
1536
1537 if (hdrv) {
1538 if (hdrv->remove)
1539 hdrv->remove(hdev);
c500c971
JS		 1540 else /* default remove */
1541 hid_hw_stop(hdev);
85cdaf52
JS		 1542 hdev->driver = NULL;
1543 }
1544
1545 return 0;
1546}
1547
1548static int hid_uevent(struct device *dev, struct kobj_uevent_env *env)
1549{
1550 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1551
1552 if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X",
1553 hdev->bus, hdev->vendor, hdev->product))
1554 return -ENOMEM;
1555
1556 if (add_uevent_var(env, "HID_NAME=%s", hdev->name))
1557 return -ENOMEM;
1558
1559 if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys))
1560 return -ENOMEM;
1561
1562 if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq))
1563 return -ENOMEM;
1564
1565 if (add_uevent_var(env, "MODALIAS=hid:b%04Xv%08Xp%08X",
1566 hdev->bus, hdev->vendor, hdev->product))
1567 return -ENOMEM;
1568
1569 return 0;
1570}
1571
1572static struct bus_type hid_bus_type = {
1573 .name = "hid",
1574 .match = hid_bus_match,
1575 .probe = hid_device_probe,
1576 .remove = hid_device_remove,
1577 .uevent = hid_uevent,
1578};
1579
bae7eb33 1580/* a list of devices that shouldn't be handled by HID core at all */
d458a9df
JS		 1581static const struct hid_device_id hid_ignore_list[] = {
1582 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) },
1583 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) },
1584 { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) },
1585 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) },
1586 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) },
1587 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) },
1588 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) },
1589 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) },
1590 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) },
1591 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) },
1592 { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) },
1593 { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) },
77f720b7
SC		 1594 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)},
1595 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)},
62a56582 1596 { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) },
d458a9df
JS		 1597 { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) },
1598 { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) },
1599 { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) },
1600 { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) },
1601 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) },
1602 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) },
5f6108cf 1603 { HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) },
d458a9df
JS		 1604 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) },
1605 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
1606 { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
70c66567 1607 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
df506f2c 1608 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
d458a9df
JS		 1609 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) },
1610 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) },
1611 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0003) },
1612 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) },
1613 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) },
1614 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) },
1615 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) },
1616 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) },
1617 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) },
1618 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) },
1619 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) },
1620 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) },
1621 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) },
1622 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) },
1623 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) },
1624 { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) },
1625 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) },
1626 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) },
1627 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) },
1628 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) },
1629 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) },
1630 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) },
1631 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) },
1632 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) },
1633 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) },
1634 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) },
1635 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) },
1636 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) },
1637 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) },
1638 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) },
1639 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) },
1640 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) },
1641 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) },
1642 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) },
1643 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) },
1644 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) },
1645 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) },
1646 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) },
1647 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) },
1648 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) },
1649 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) },
1650 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) },
1651 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) },
1652 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) },
1653 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) },
1654 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) },
1655 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) },
1656 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) },
1657 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) },
1658 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) },
1659 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) },
1660 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) },
1661 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) },
1662 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) },
1663 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) },
1664 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) },
1665 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) },
1666 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) },
1667 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) },
1668 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) },
1669 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) },
1670 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) },
1671 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) },
1672 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) },
1673 { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) },
6bc235a2 1674 { HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_JESS_YUREX) },
d458a9df 1675 { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) },
c91c21c5 1676 { HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) },
d458a9df 1677 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) },
eb8141cc 1678 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) },
d458a9df
JS		 1679 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) },
1680 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) },
1681 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) },
1682 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) },
1683 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) },
1684 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) },
1685 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY1) },
1686 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) },
1687 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) },
1688 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) },
1689 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) },
1690 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) },
1691 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) },
1692 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) },
1693 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) },
1694 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) },
d458a9df
JS		 1695 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) },
1696 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) },
1697 { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) },
1698 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) },
1699 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) },
1700 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) },
1701 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) },
1702 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) },
1703 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) },
1704 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) },
1705 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) },
1706 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) },
1707 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) },
1708 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) },
1709 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) },
1710 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) },
1711 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
4cfae3e8 1712 { HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
35cfd1d9 1713 { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
d458a9df
JS		 1714 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) },
1715 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
1716 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },
1717 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) },
1718 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) },
1719 { HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) },
1720 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) },
1721 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) },
1722 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) },
1723 { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) },
1724 { }
1725};
1726
b4d8e473
JS		 1727/**
1728 * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer
1729 *
1730 * There are composite devices for which we want to ignore only a certain
1731 * interface. This is a list of devices for which only the mouse interface will
1732 * be ignored. This allows a dedicated driver to take care of the interface.
1733 */
1734static const struct hid_device_id hid_mouse_ignore_list[] = {
1735 /* appletouch driver */
1736 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1737 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1738 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1739 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1740 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1741 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1742 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1743 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1744 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1745 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1746 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1747 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1748 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1749 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
1750 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1751 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1752 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1753 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1754 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1755 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
ac26fca3
JK		 1756 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1757 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1758 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
b4d8e473
JS		 1759 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1760 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1761 { }
1762};
1763
d458a9df
JS		 1764static bool hid_ignore(struct hid_device *hdev)
1765{
1766 switch (hdev->vendor) {
1767 case USB_VENDOR_ID_CODEMERCS:
1768 /* ignore all Code Mercenaries IOWarrior devices */
1769 if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST &&
1770 hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST)
1771 return true;
1772 break;
1773 case USB_VENDOR_ID_LOGITECH:
1774 if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST &&
1775 hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST)
1776 return true;
1777 break;
31f7fd79
JW		 1778 case USB_VENDOR_ID_SOUNDGRAPH:
1779 if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST &&
1780 hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST)
1781 return true;
1782 break;
d458a9df
JS		 1783 }
1784
b4d8e473
JS		 1785 if (hdev->type == HID_TYPE_USBMOUSE &&
1786 hid_match_id(hdev, hid_mouse_ignore_list))
1787 return true;
1788
d458a9df
JS		 1789 return !!hid_match_id(hdev, hid_ignore_list);
1790}
1791
85cdaf52
JS		 1792int hid_add_device(struct hid_device *hdev)
1793{
1794 static atomic_t id = ATOMIC_INIT(0);
1795 int ret;
1796
1797 if (WARN_ON(hdev->status & HID_STAT_ADDED))
1798 return -EBUSY;
1799
d458a9df
JS		 1800 /* we need to kill them here, otherwise they will stay allocated to
1801 * wait for coming driver */
e5a2a04c
JM		 1802 if (!(hdev->quirks & HID_QUIRK_NO_IGNORE)
1803 && (hid_ignore(hdev) || (hdev->quirks & HID_QUIRK_IGNORE)))
d458a9df
JS		 1804 return -ENODEV;
1805
6bbe586f
KS		 1806 /* XXX hack, any other cleaner solution after the driver core
1807 * is converted to allow more than 20 bytes as the device name? */
1808 dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
1809 hdev->vendor, hdev->product, atomic_inc_return(&id));
85cdaf52 1810
4da361b6 1811 hid_debug_register(hdev, dev_name(&hdev->dev));
85cdaf52
JS		 1812 ret = device_add(&hdev->dev);
1813 if (!ret)
1814 hdev->status |= HID_STAT_ADDED;
4da361b6
BP		 1815 else
1816 hid_debug_unregister(hdev);
a635f9dd 1817
85cdaf52
JS		 1818 return ret;
1819}
1820EXPORT_SYMBOL_GPL(hid_add_device);
1821
1822/**
1823 * hid_allocate_device - allocate new hid device descriptor
1824 *
1825 * Allocate and initialize hid device, so that hid_destroy_device might be
1826 * used to free it.
1827 *
1828 * New hid_device pointer is returned on success, otherwise ERR_PTR encoded
1829 * error value.
1830 */
1831struct hid_device *hid_allocate_device(void)
1832{
1833 struct hid_device *hdev;
1834 unsigned int i;
1835 int ret = -ENOMEM;
1836
1837 hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
1838 if (hdev == NULL)
1839 return ERR_PTR(ret);
1840
1841 device_initialize(&hdev->dev);
1842 hdev->dev.release = hid_device_release;
1843 hdev->dev.bus = &hid_bus_type;
1844
1845 hdev->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS,
1846 sizeof(struct hid_collection), GFP_KERNEL);
1847 if (hdev->collection == NULL)
1848 goto err;
1849 hdev->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
1850
1851 for (i = 0; i < HID_REPORT_TYPES; i++)
1852 INIT_LIST_HEAD(&hdev->report_enum[i].report_list);
1853
cd667ce2
JK		 1854 init_waitqueue_head(&hdev->debug_wait);
1855 INIT_LIST_HEAD(&hdev->debug_list);
1856
85cdaf52
JS		 1857 return hdev;
1858err:
1859 put_device(&hdev->dev);
1860 return ERR_PTR(ret);
1861}
1862EXPORT_SYMBOL_GPL(hid_allocate_device);
1863
1864static void hid_remove_device(struct hid_device *hdev)
1865{
1866 if (hdev->status & HID_STAT_ADDED) {
1867 device_del(&hdev->dev);
a635f9dd 1868 hid_debug_unregister(hdev);
85cdaf52
JS		 1869 hdev->status &= ~HID_STAT_ADDED;
1870 }
1871}
1872
1873/**
1874 * hid_destroy_device - free previously allocated device
1875 *
1876 * @hdev: hid device
1877 *
1878 * If you allocate hid_device through hid_allocate_device, you should ever
1879 * free by this function.
1880 */
1881void hid_destroy_device(struct hid_device *hdev)
1882{
1883 hid_remove_device(hdev);
1884 put_device(&hdev->dev);
1885}
1886EXPORT_SYMBOL_GPL(hid_destroy_device);
1887
1888int __hid_register_driver(struct hid_driver *hdrv, struct module *owner,
1889 const char *mod_name)
1890{
3a6f82f7
JS		 1891 int ret;
1892
85cdaf52
JS		 1893 hdrv->driver.name = hdrv->name;
1894 hdrv->driver.bus = &hid_bus_type;
1895 hdrv->driver.owner = owner;
1896 hdrv->driver.mod_name = mod_name;
1897
3a6f82f7
JS		 1898 INIT_LIST_HEAD(&hdrv->dyn_list);
1899 spin_lock_init(&hdrv->dyn_lock);
1900
1901 ret = driver_register(&hdrv->driver);
1902 if (ret)
1903 return ret;
1904
1905 ret = driver_create_file(&hdrv->driver, &driver_attr_new_id);
1906 if (ret)
1907 driver_unregister(&hdrv->driver);
1908
1909 return ret;
85cdaf52
JS		 1910}
1911EXPORT_SYMBOL_GPL(__hid_register_driver);
1912
1913void hid_unregister_driver(struct hid_driver *hdrv)
1914{
3a6f82f7 1915 driver_remove_file(&hdrv->driver, &driver_attr_new_id);
85cdaf52 1916 driver_unregister(&hdrv->driver);
3a6f82f7 1917 hid_free_dynids(hdrv);
85cdaf52
JS		 1918}
1919EXPORT_SYMBOL_GPL(hid_unregister_driver);
1920
0361a28d
ON		 1921int hid_check_keys_pressed(struct hid_device *hid)
1922{
1923 struct hid_input *hidinput;
1924 int i;
1925
e5288eb5
JK		 1926 if (!(hid->claimed & HID_CLAIMED_INPUT))
1927 return 0;
1928
0361a28d
ON		 1929 list_for_each_entry(hidinput, &hid->inputs, list) {
1930 for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++)
1931 if (hidinput->input->key[i])
1932 return 1;
1933 }
1934
1935 return 0;
1936}
1937
1938EXPORT_SYMBOL_GPL(hid_check_keys_pressed);
1939
86166b7b
JK		 1940static int __init hid_init(void)
1941{
85cdaf52
JS		 1942 int ret;
1943
a635f9dd 1944 if (hid_debug)
cd667ce2
JK		 1945 printk(KERN_WARNING "HID: hid_debug is now used solely for parser and driver debugging.\n"
1946 "HID: debugfs is now used for inspecting the device (report descriptor, reports)\n");
a635f9dd 1947
85cdaf52
JS		 1948 ret = bus_register(&hid_bus_type);
1949 if (ret) {
1950 printk(KERN_ERR "HID: can't register hid bus\n");
1951 goto err;
1952 }
1953
1954 ret = hidraw_init();
1955 if (ret)
1956 goto err_bus;
1957
a635f9dd
JK		 1958 hid_debug_init();
1959
85cdaf52
JS		 1960 return 0;
1961err_bus:
1962 bus_unregister(&hid_bus_type);
1963err:
1964 return ret;
86166b7b
JK		 1965}
1966
1967static void __exit hid_exit(void)
1968{
a635f9dd 1969 hid_debug_exit();
86166b7b 1970 hidraw_exit();
85cdaf52 1971 bus_unregister(&hid_bus_type);
86166b7b
JK		 1972}
1973
1974module_init(hid_init);
1975module_exit(hid_exit);
1976
88adb72b
JK		 1977MODULE_AUTHOR("Andreas Gal");
1978MODULE_AUTHOR("Vojtech Pavlik");
1979MODULE_AUTHOR("Jiri Kosina");
aa938f79
JK		 1980MODULE_LICENSE(DRIVER_LICENSE);
1981
Linux 6.x block layer and io_uring tree(s)