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HID: use debugfs for report dumping descriptor
[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
f142b3a4 7 * Copyright (c) 2006-2007 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
42#define DRIVER_VERSION "v2.6"
f142b3a4 43#define DRIVER_AUTHOR "Andreas Gal, Vojtech Pavlik, Jiri Kosina"
53149801 44#define DRIVER_DESC "HID core driver"
dde5845a
JK		 45#define DRIVER_LICENSE "GPL"
46
58037eb9 47int hid_debug = 0;
377e10fb
AH		 48module_param_named(debug, hid_debug, int, 0600);
49MODULE_PARM_DESC(debug, "HID debugging (0=off, 1=probing info, 2=continuous data dumping)");
58037eb9 50EXPORT_SYMBOL_GPL(hid_debug);
58037eb9 51
dde5845a
JK		 52/*
53 * Register a new report for a device.
54 */
55
56static struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
57{
58 struct hid_report_enum *report_enum = device->report_enum + type;
59 struct hid_report *report;
60
61 if (report_enum->report_id_hash[id])
62 return report_enum->report_id_hash[id];
63
64 if (!(report = kzalloc(sizeof(struct hid_report), GFP_KERNEL)))
65 return NULL;
66
67 if (id != 0)
68 report_enum->numbered = 1;
69
70 report->id = id;
71 report->type = type;
72 report->size = 0;
73 report->device = device;
74 report_enum->report_id_hash[id] = report;
75
76 list_add_tail(&report->list, &report_enum->report_list);
77
78 return report;
79}
80
81/*
82 * Register a new field for this report.
83 */
84
85static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values)
86{
87 struct hid_field *field;
88
89 if (report->maxfield == HID_MAX_FIELDS) {
58037eb9 90 dbg_hid("too many fields in report\n");
dde5845a
JK		 91 return NULL;
92 }
93
94 if (!(field = kzalloc(sizeof(struct hid_field) + usages * sizeof(struct hid_usage)
95 + values * sizeof(unsigned), GFP_KERNEL))) return NULL;
96
97 field->index = report->maxfield++;
98 report->field[field->index] = field;
99 field->usage = (struct hid_usage *)(field + 1);
282bfd4c 100 field->value = (s32 *)(field->usage + usages);
dde5845a
JK		 101 field->report = report;
102
103 return field;
104}
105
106/*
107 * Open a collection. The type/usage is pushed on the stack.
108 */
109
110static int open_collection(struct hid_parser *parser, unsigned type)
111{
112 struct hid_collection *collection;
113 unsigned usage;
114
115 usage = parser->local.usage[0];
116
117 if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) {
58037eb9 118 dbg_hid("collection stack overflow\n");
dde5845a
JK		 119 return -1;
120 }
121
122 if (parser->device->maxcollection == parser->device->collection_size) {
123 collection = kmalloc(sizeof(struct hid_collection) *
124 parser->device->collection_size * 2, GFP_KERNEL);
125 if (collection == NULL) {
58037eb9 126 dbg_hid("failed to reallocate collection array\n");
dde5845a
JK		 127 return -1;
128 }
129 memcpy(collection, parser->device->collection,
130 sizeof(struct hid_collection) *
131 parser->device->collection_size);
132 memset(collection + parser->device->collection_size, 0,
133 sizeof(struct hid_collection) *
134 parser->device->collection_size);
135 kfree(parser->device->collection);
136 parser->device->collection = collection;
137 parser->device->collection_size *= 2;
138 }
139
140 parser->collection_stack[parser->collection_stack_ptr++] =
141 parser->device->maxcollection;
142
143 collection = parser->device->collection +
144 parser->device->maxcollection++;
145 collection->type = type;
146 collection->usage = usage;
147 collection->level = parser->collection_stack_ptr - 1;
148
149 if (type == HID_COLLECTION_APPLICATION)
150 parser->device->maxapplication++;
151
152 return 0;
153}
154
155/*
156 * Close a collection.
157 */
158
159static int close_collection(struct hid_parser *parser)
160{
161 if (!parser->collection_stack_ptr) {
58037eb9 162 dbg_hid("collection stack underflow\n");
dde5845a
JK		 163 return -1;
164 }
165 parser->collection_stack_ptr--;
166 return 0;
167}
168
169/*
170 * Climb up the stack, search for the specified collection type
171 * and return the usage.
172 */
173
174static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type)
175{
176 int n;
177 for (n = parser->collection_stack_ptr - 1; n >= 0; n--)
178 if (parser->device->collection[parser->collection_stack[n]].type == type)
179 return parser->device->collection[parser->collection_stack[n]].usage;
180 return 0; /* we know nothing about this usage type */
181}
182
183/*
184 * Add a usage to the temporary parser table.
185 */
186
187static int hid_add_usage(struct hid_parser *parser, unsigned usage)
188{
189 if (parser->local.usage_index >= HID_MAX_USAGES) {
58037eb9 190 dbg_hid("usage index exceeded\n");
dde5845a
JK		 191 return -1;
192 }
193 parser->local.usage[parser->local.usage_index] = usage;
194 parser->local.collection_index[parser->local.usage_index] =
195 parser->collection_stack_ptr ?
196 parser->collection_stack[parser->collection_stack_ptr - 1] : 0;
197 parser->local.usage_index++;
198 return 0;
199}
200
201/*
202 * Register a new field for this report.
203 */
204
205static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags)
206{
207 struct hid_report *report;
208 struct hid_field *field;
209 int usages;
210 unsigned offset;
211 int i;
212
213 if (!(report = hid_register_report(parser->device, report_type, parser->global.report_id))) {
58037eb9 214 dbg_hid("hid_register_report failed\n");
dde5845a
JK		 215 return -1;
216 }
217
218 if (parser->global.logical_maximum < parser->global.logical_minimum) {
58037eb9 219 dbg_hid("logical range invalid %d %d\n", parser->global.logical_minimum, parser->global.logical_maximum);
dde5845a
JK		 220 return -1;
221 }
222
223 offset = report->size;
224 report->size += parser->global.report_size * parser->global.report_count;
225
226 if (!parser->local.usage_index) /* Ignore padding fields */
227 return 0;
228
229 usages = max_t(int, parser->local.usage_index, parser->global.report_count);
230
231 if ((field = hid_register_field(report, usages, parser->global.report_count)) == NULL)
232 return 0;
233
234 field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
235 field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
236 field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
237
238 for (i = 0; i < usages; i++) {
239 int j = i;
240 /* Duplicate the last usage we parsed if we have excess values */
241 if (i >= parser->local.usage_index)
242 j = parser->local.usage_index - 1;
243 field->usage[i].hid = parser->local.usage[j];
244 field->usage[i].collection_index =
245 parser->local.collection_index[j];
246 }
247
248 field->maxusage = usages;
249 field->flags = flags;
250 field->report_offset = offset;
251 field->report_type = report_type;
252 field->report_size = parser->global.report_size;
253 field->report_count = parser->global.report_count;
254 field->logical_minimum = parser->global.logical_minimum;
255 field->logical_maximum = parser->global.logical_maximum;
256 field->physical_minimum = parser->global.physical_minimum;
257 field->physical_maximum = parser->global.physical_maximum;
258 field->unit_exponent = parser->global.unit_exponent;
259 field->unit = parser->global.unit;
260
261 return 0;
262}
263
264/*
265 * Read data value from item.
266 */
267
268static u32 item_udata(struct hid_item *item)
269{
270 switch (item->size) {
880d29f1
JS		 271 case 1: return item->data.u8;
272 case 2: return item->data.u16;
273 case 4: return item->data.u32;
dde5845a
JK		 274 }
275 return 0;
276}
277
278static s32 item_sdata(struct hid_item *item)
279{
280 switch (item->size) {
880d29f1
JS		 281 case 1: return item->data.s8;
282 case 2: return item->data.s16;
283 case 4: return item->data.s32;
dde5845a
JK		 284 }
285 return 0;
286}
287
288/*
289 * Process a global item.
290 */
291
292static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
293{
294 switch (item->tag) {
880d29f1 295 case HID_GLOBAL_ITEM_TAG_PUSH:
dde5845a 296
880d29f1
JS		 297 if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
298 dbg_hid("global enviroment stack overflow\n");
299 return -1;
300 }
dde5845a 301
880d29f1
JS		 302 memcpy(parser->global_stack + parser->global_stack_ptr++,
303 &parser->global, sizeof(struct hid_global));
304 return 0;
dde5845a 305
880d29f1 306 case HID_GLOBAL_ITEM_TAG_POP:
dde5845a 307
880d29f1
JS		 308 if (!parser->global_stack_ptr) {
309 dbg_hid("global enviroment stack underflow\n");
310 return -1;
311 }
dde5845a 312
880d29f1
JS		 313 memcpy(&parser->global, parser->global_stack +
314 --parser->global_stack_ptr, sizeof(struct hid_global));
315 return 0;
dde5845a 316
880d29f1
JS		 317 case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
318 parser->global.usage_page = item_udata(item);
319 return 0;
dde5845a 320
880d29f1
JS		 321 case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
322 parser->global.logical_minimum = item_sdata(item);
323 return 0;
dde5845a 324
880d29f1
JS		 325 case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
326 if (parser->global.logical_minimum < 0)
327 parser->global.logical_maximum = item_sdata(item);
328 else
329 parser->global.logical_maximum = item_udata(item);
330 return 0;
dde5845a 331
880d29f1
JS		 332 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
333 parser->global.physical_minimum = item_sdata(item);
334 return 0;
dde5845a 335
880d29f1
JS		 336 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
337 if (parser->global.physical_minimum < 0)
338 parser->global.physical_maximum = item_sdata(item);
339 else
340 parser->global.physical_maximum = item_udata(item);
341 return 0;
dde5845a 342
880d29f1
JS		 343 case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
344 parser->global.unit_exponent = item_sdata(item);
345 return 0;
dde5845a 346
880d29f1
JS		 347 case HID_GLOBAL_ITEM_TAG_UNIT:
348 parser->global.unit = item_udata(item);
349 return 0;
dde5845a 350
880d29f1
JS		 351 case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
352 parser->global.report_size = item_udata(item);
353 if (parser->global.report_size > 32) {
354 dbg_hid("invalid report_size %d\n",
355 parser->global.report_size);
356 return -1;
357 }
358 return 0;
dde5845a 359
880d29f1
JS		 360 case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
361 parser->global.report_count = item_udata(item);
362 if (parser->global.report_count > HID_MAX_USAGES) {
363 dbg_hid("invalid report_count %d\n",
364 parser->global.report_count);
365 return -1;
366 }
367 return 0;
dde5845a 368
880d29f1
JS		 369 case HID_GLOBAL_ITEM_TAG_REPORT_ID:
370 parser->global.report_id = item_udata(item);
371 if (parser->global.report_id == 0) {
372 dbg_hid("report_id 0 is invalid\n");
dde5845a 373 return -1;
880d29f1
JS		 374 }
375 return 0;
376
377 default:
378 dbg_hid("unknown global tag 0x%x\n", item->tag);
379 return -1;
dde5845a
JK		 380 }
381}
382
383/*
384 * Process a local item.
385 */
386
387static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
388{
389 __u32 data;
390 unsigned n;
391
392 if (item->size == 0) {
58037eb9 393 dbg_hid("item data expected for local item\n");
dde5845a
JK		 394 return -1;
395 }
396
397 data = item_udata(item);
398
399 switch (item->tag) {
880d29f1
JS		 400 case HID_LOCAL_ITEM_TAG_DELIMITER:
401
402 if (data) {
403 /*
404 * We treat items before the first delimiter
405 * as global to all usage sets (branch 0).
406 * In the moment we process only these global
407 * items and the first delimiter set.
408 */
409 if (parser->local.delimiter_depth != 0) {
410 dbg_hid("nested delimiters\n");
411 return -1;
dde5845a 412 }
880d29f1
JS		 413 parser->local.delimiter_depth++;
414 parser->local.delimiter_branch++;
415 } else {
416 if (parser->local.delimiter_depth < 1) {
417 dbg_hid("bogus close delimiter\n");
418 return -1;
dde5845a 419 }
880d29f1
JS		 420 parser->local.delimiter_depth--;
421 }
422 return 1;
dde5845a 423
880d29f1 424 case HID_LOCAL_ITEM_TAG_USAGE:
dde5845a 425
880d29f1
JS		 426 if (parser->local.delimiter_branch > 1) {
427 dbg_hid("alternative usage ignored\n");
428 return 0;
429 }
dde5845a 430
880d29f1
JS		 431 if (item->size <= 2)
432 data = (parser->global.usage_page << 16) + data;
dde5845a 433
880d29f1 434 return hid_add_usage(parser, data);
dde5845a 435
880d29f1 436 case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
dde5845a 437
880d29f1
JS		 438 if (parser->local.delimiter_branch > 1) {
439 dbg_hid("alternative usage ignored\n");
dde5845a 440 return 0;
880d29f1 441 }
dde5845a 442
880d29f1
JS		 443 if (item->size <= 2)
444 data = (parser->global.usage_page << 16) + data;
dde5845a 445
880d29f1
JS		 446 parser->local.usage_minimum = data;
447 return 0;
dde5845a 448
880d29f1 449 case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
dde5845a 450
880d29f1
JS		 451 if (parser->local.delimiter_branch > 1) {
452 dbg_hid("alternative usage ignored\n");
dde5845a 453 return 0;
880d29f1 454 }
dde5845a 455
880d29f1
JS		 456 if (item->size <= 2)
457 data = (parser->global.usage_page << 16) + data;
dde5845a 458
880d29f1
JS		 459 for (n = parser->local.usage_minimum; n <= data; n++)
460 if (hid_add_usage(parser, n)) {
461 dbg_hid("hid_add_usage failed\n");
462 return -1;
463 }
464 return 0;
465
466 default:
467
468 dbg_hid("unknown local item tag 0x%x\n", item->tag);
469 return 0;
dde5845a
JK		 470 }
471 return 0;
472}
473
474/*
475 * Process a main item.
476 */
477
478static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
479{
480 __u32 data;
481 int ret;
482
483 data = item_udata(item);
484
485 switch (item->tag) {
880d29f1
JS		 486 case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
487 ret = open_collection(parser, data & 0xff);
488 break;
489 case HID_MAIN_ITEM_TAG_END_COLLECTION:
490 ret = close_collection(parser);
491 break;
492 case HID_MAIN_ITEM_TAG_INPUT:
493 ret = hid_add_field(parser, HID_INPUT_REPORT, data);
494 break;
495 case HID_MAIN_ITEM_TAG_OUTPUT:
496 ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
497 break;
498 case HID_MAIN_ITEM_TAG_FEATURE:
499 ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
500 break;
501 default:
502 dbg_hid("unknown main item tag 0x%x\n", item->tag);
503 ret = 0;
dde5845a
JK		 504 }
505
506 memset(&parser->local, 0, sizeof(parser->local)); /* Reset the local parser environment */
507
508 return ret;
509}
510
511/*
512 * Process a reserved item.
513 */
514
515static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
516{
58037eb9 517 dbg_hid("reserved item type, tag 0x%x\n", item->tag);
dde5845a
JK		 518 return 0;
519}
520
521/*
522 * Free a report and all registered fields. The field->usage and
523 * field->value table's are allocated behind the field, so we need
524 * only to free(field) itself.
525 */
526
527static void hid_free_report(struct hid_report *report)
528{
529 unsigned n;
530
531 for (n = 0; n < report->maxfield; n++)
532 kfree(report->field[n]);
533 kfree(report);
534}
535
536/*
537 * Free a device structure, all reports, and all fields.
538 */
539
85cdaf52 540static void hid_device_release(struct device *dev)
dde5845a 541{
85cdaf52
JS		 542 struct hid_device *device = container_of(dev, struct hid_device, dev);
543 unsigned i, j;
dde5845a
JK		 544
545 for (i = 0; i < HID_REPORT_TYPES; i++) {
546 struct hid_report_enum *report_enum = device->report_enum + i;
547
548 for (j = 0; j < 256; j++) {
549 struct hid_report *report = report_enum->report_id_hash[j];
550 if (report)
551 hid_free_report(report);
552 }
553 }
554
555 kfree(device->rdesc);
767fe787 556 kfree(device->collection);
dde5845a
JK		 557 kfree(device);
558}
559
560/*
561 * Fetch a report description item from the data stream. We support long
562 * items, though they are not used yet.
563 */
564
565static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
566{
567 u8 b;
568
569 if ((end - start) <= 0)
570 return NULL;
571
572 b = *start++;
573
574 item->type = (b >> 2) & 3;
575 item->tag = (b >> 4) & 15;
576
577 if (item->tag == HID_ITEM_TAG_LONG) {
578
579 item->format = HID_ITEM_FORMAT_LONG;
580
581 if ((end - start) < 2)
582 return NULL;
583
584 item->size = *start++;
585 item->tag = *start++;
586
587 if ((end - start) < item->size)
588 return NULL;
589
590 item->data.longdata = start;
591 start += item->size;
592 return start;
593 }
594
595 item->format = HID_ITEM_FORMAT_SHORT;
596 item->size = b & 3;
597
598 switch (item->size) {
880d29f1
JS		 599 case 0:
600 return start;
dde5845a 601
880d29f1
JS		 602 case 1:
603 if ((end - start) < 1)
604 return NULL;
605 item->data.u8 = *start++;
606 return start;
607
608 case 2:
609 if ((end - start) < 2)
610 return NULL;
611 item->data.u16 = get_unaligned_le16(start);
612 start = (__u8 *)((__le16 *)start + 1);
613 return start;
614
615 case 3:
616 item->size++;
617 if ((end - start) < 4)
618 return NULL;
619 item->data.u32 = get_unaligned_le32(start);
620 start = (__u8 *)((__le32 *)start + 1);
621 return start;
dde5845a
JK		 622 }
623
624 return NULL;
625}
626
85cdaf52
JS		 627/**
628 * hid_parse_report - parse device report
629 *
630 * @device: hid device
631 * @start: report start
632 * @size: report size
633 *
dde5845a
JK		 634 * Parse a report description into a hid_device structure. Reports are
635 * enumerated, fields are attached to these reports.
85cdaf52 636 * 0 returned on success, otherwise nonzero error value.
dde5845a 637 */
85cdaf52
JS		 638int hid_parse_report(struct hid_device *device, __u8 *start,
639 unsigned size)
dde5845a 640{
dde5845a
JK		 641 struct hid_parser *parser;
642 struct hid_item item;
643 __u8 *end;
85cdaf52 644 int ret;
dde5845a
JK		 645 static int (*dispatch_type[])(struct hid_parser *parser,
646 struct hid_item *item) = {
647 hid_parser_main,
648 hid_parser_global,
649 hid_parser_local,
650 hid_parser_reserved
651 };
652
c500c971
JS		 653 if (device->driver->report_fixup)
654 device->driver->report_fixup(device, start, size);
655
85cdaf52
JS		 656 device->rdesc = kmalloc(size, GFP_KERNEL);
657 if (device->rdesc == NULL)
658 return -ENOMEM;
dde5845a
JK		 659 memcpy(device->rdesc, start, size);
660 device->rsize = size;
661
85cdaf52
JS		 662 parser = vmalloc(sizeof(struct hid_parser));
663 if (!parser) {
664 ret = -ENOMEM;
665 goto err;
dde5845a 666 }
85cdaf52 667
47a80edb 668 memset(parser, 0, sizeof(struct hid_parser));
dde5845a
JK		 669 parser->device = device;
670
671 end = start + size;
85cdaf52 672 ret = -EINVAL;
dde5845a
JK		 673 while ((start = fetch_item(start, end, &item)) != NULL) {
674
675 if (item.format != HID_ITEM_FORMAT_SHORT) {
58037eb9 676 dbg_hid("unexpected long global item\n");
85cdaf52 677 goto err;
dde5845a
JK		 678 }
679
680 if (dispatch_type[item.type](parser, &item)) {
58037eb9 681 dbg_hid("item %u %u %u %u parsing failed\n",
dde5845a 682 item.format, (unsigned)item.size, (unsigned)item.type, (unsigned)item.tag);
85cdaf52 683 goto err;
dde5845a
JK		 684 }
685
686 if (start == end) {
687 if (parser->collection_stack_ptr) {
58037eb9 688 dbg_hid("unbalanced collection at end of report description\n");
85cdaf52 689 goto err;
dde5845a
JK		 690 }
691 if (parser->local.delimiter_depth) {
58037eb9 692 dbg_hid("unbalanced delimiter at end of report description\n");
85cdaf52 693 goto err;
dde5845a 694 }
47a80edb 695 vfree(parser);
85cdaf52 696 return 0;
dde5845a
JK		 697 }
698 }
699
58037eb9 700 dbg_hid("item fetching failed at offset %d\n", (int)(end - start));
85cdaf52 701err:
47a80edb 702 vfree(parser);
85cdaf52 703 return ret;
dde5845a 704}
229695e5 705EXPORT_SYMBOL_GPL(hid_parse_report);
dde5845a
JK		 706
707/*
708 * Convert a signed n-bit integer to signed 32-bit integer. Common
709 * cases are done through the compiler, the screwed things has to be
710 * done by hand.
711 */
712
713static s32 snto32(__u32 value, unsigned n)
714{
715 switch (n) {
880d29f1
JS		 716 case 8: return ((__s8)value);
717 case 16: return ((__s16)value);
718 case 32: return ((__s32)value);
dde5845a
JK		 719 }
720 return value & (1 << (n - 1)) ? value | (-1 << n) : value;
721}
722
723/*
724 * Convert a signed 32-bit integer to a signed n-bit integer.
725 */
726
727static u32 s32ton(__s32 value, unsigned n)
728{
729 s32 a = value >> (n - 1);
730 if (a && a != -1)
731 return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
732 return value & ((1 << n) - 1);
733}
734
735/*
736 * Extract/implement a data field from/to a little endian report (bit array).
737 *
738 * Code sort-of follows HID spec:
739 * http://www.usb.org/developers/devclass_docs/HID1_11.pdf
740 *
741 * While the USB HID spec allows unlimited length bit fields in "report
742 * descriptors", most devices never use more than 16 bits.
743 * One model of UPS is claimed to report "LINEV" as a 32-bit field.
744 * Search linux-kernel and linux-usb-devel archives for "hid-core extract".
745 */
746
747static __inline__ __u32 extract(__u8 *report, unsigned offset, unsigned n)
748{
749 u64 x;
750
c4124c9b
JK		 751 if (n > 32)
752 printk(KERN_WARNING "HID: extract() called with n (%d) > 32! (%s)\n",
753 n, current->comm);
dde5845a
JK		 754
755 report += offset >> 3; /* adjust byte index */
229695e5 756 offset &= 7; /* now only need bit offset into one byte */
c105068f 757 x = get_unaligned_le64(report);
229695e5 758 x = (x >> offset) & ((1ULL << n) - 1); /* extract bit field */
dde5845a
JK		 759 return (u32) x;
760}
761
762/*
763 * "implement" : set bits in a little endian bit stream.
764 * Same concepts as "extract" (see comments above).
765 * The data mangled in the bit stream remains in little endian
766 * order the whole time. It make more sense to talk about
767 * endianness of register values by considering a register
768 * a "cached" copy of the little endiad bit stream.
769 */
770static __inline__ void implement(__u8 *report, unsigned offset, unsigned n, __u32 value)
771{
6f0168d2 772 u64 x;
dde5845a
JK		 773 u64 m = (1ULL << n) - 1;
774
c4124c9b
JK		 775 if (n > 32)
776 printk(KERN_WARNING "HID: implement() called with n (%d) > 32! (%s)\n",
777 n, current->comm);
dde5845a 778
c4124c9b
JK		 779 if (value > m)
780 printk(KERN_WARNING "HID: implement() called with too large value %d! (%s)\n",
781 value, current->comm);
dde5845a
JK		 782 WARN_ON(value > m);
783 value &= m;
784
785 report += offset >> 3;
786 offset &= 7;
787
6f0168d2
HH		 788 x = get_unaligned_le64(report);
789 x &= ~(m << offset);
790 x |= ((u64)value) << offset;
791 put_unaligned_le64(x, report);
dde5845a
JK		 792}
793
794/*
795 * Search an array for a value.
796 */
797
798static __inline__ int search(__s32 *array, __s32 value, unsigned n)
799{
800 while (n--) {
801 if (*array++ == value)
802 return 0;
803 }
804 return -1;
805}
806
85cdaf52
JS		 807/**
808 * hid_match_report - check if driver's raw_event should be called
809 *
810 * @hid: hid device
811 * @report_type: type to match against
812 *
813 * compare hid->driver->report_table->report_type to report->type
814 */
815static int hid_match_report(struct hid_device *hid, struct hid_report *report)
dde5845a 816{
85cdaf52
JS		 817 const struct hid_report_id *id = hid->driver->report_table;
818
819 if (!id) /* NULL means all */
820 return 1;
821
822 for (; id->report_type != HID_TERMINATOR; id++)
823 if (id->report_type == HID_ANY_ID ||
824 id->report_type == report->type)
825 return 1;
826 return 0;
827}
828
829/**
830 * hid_match_usage - check if driver's event should be called
831 *
832 * @hid: hid device
833 * @usage: usage to match against
834 *
835 * compare hid->driver->usage_table->usage_{type,code} to
836 * usage->usage_{type,code}
837 */
838static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage)
839{
840 const struct hid_usage_id *id = hid->driver->usage_table;
841
842 if (!id) /* NULL means all */
843 return 1;
844
845 for (; id->usage_type != HID_ANY_ID - 1; id++)
846 if ((id->usage_hid == HID_ANY_ID ||
847 id->usage_hid == usage->hid) &&
848 (id->usage_type == HID_ANY_ID ||
849 id->usage_type == usage->type) &&
850 (id->usage_code == HID_ANY_ID ||
851 id->usage_code == usage->code))
852 return 1;
853 return 0;
854}
855
856static void hid_process_event(struct hid_device *hid, struct hid_field *field,
857 struct hid_usage *usage, __s32 value, int interrupt)
858{
859 struct hid_driver *hdrv = hid->driver;
860 int ret;
861
dde5845a 862 hid_dump_input(usage, value);
85cdaf52
JS		 863
864 if (hdrv && hdrv->event && hid_match_usage(hid, usage)) {
865 ret = hdrv->event(hid, field, usage, value);
866 if (ret != 0) {
867 if (ret < 0)
868 dbg_hid("%s's event failed with %d\n",
869 hdrv->name, ret);
870 return;
871 }
872 }
873
dde5845a
JK		 874 if (hid->claimed & HID_CLAIMED_INPUT)
875 hidinput_hid_event(hid, field, usage, value);
aa938f79
JK		 876 if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event)
877 hid->hiddev_hid_event(hid, field, usage, value);
dde5845a
JK		 878}
879
880/*
881 * Analyse a received field, and fetch the data from it. The field
882 * content is stored for next report processing (we do differential
883 * reporting to the layer).
884 */
885
abdff0f7
AB		 886static void hid_input_field(struct hid_device *hid, struct hid_field *field,
887 __u8 *data, int interrupt)
dde5845a
JK		 888{
889 unsigned n;
890 unsigned count = field->report_count;
891 unsigned offset = field->report_offset;
892 unsigned size = field->report_size;
893 __s32 min = field->logical_minimum;
894 __s32 max = field->logical_maximum;
895 __s32 *value;
896
897 if (!(value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC)))
898 return;
899
900 for (n = 0; n < count; n++) {
901
902 value[n] = min < 0 ? snto32(extract(data, offset + n * size, size), size) :
903 extract(data, offset + n * size, size);
904
905 if (!(field->flags & HID_MAIN_ITEM_VARIABLE) /* Ignore report if ErrorRollOver */
906 && value[n] >= min && value[n] <= max
907 && field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
908 goto exit;
909 }
910
911 for (n = 0; n < count; n++) {
912
913 if (HID_MAIN_ITEM_VARIABLE & field->flags) {
914 hid_process_event(hid, field, &field->usage[n], value[n], interrupt);
915 continue;
916 }
917
918 if (field->value[n] >= min && field->value[n] <= max
919 && field->usage[field->value[n] - min].hid
920 && search(value, field->value[n], count))
921 hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt);
922
923 if (value[n] >= min && value[n] <= max
924 && field->usage[value[n] - min].hid
925 && search(field->value, value[n], count))
926 hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt);
927 }
928
929 memcpy(field->value, value, count * sizeof(__s32));
930exit:
931 kfree(value);
932}
dde5845a
JK		 933
934/*
935 * Output the field into the report.
936 */
937
938static void hid_output_field(struct hid_field *field, __u8 *data)
939{
940 unsigned count = field->report_count;
941 unsigned offset = field->report_offset;
942 unsigned size = field->report_size;
46386b58 943 unsigned bitsused = offset + count * size;
dde5845a
JK		 944 unsigned n;
945
46386b58
SB		 946 /* make sure the unused bits in the last byte are zeros */
947 if (count > 0 && size > 0 && (bitsused % 8) != 0)
948 data[(bitsused-1)/8] &= (1 << (bitsused % 8)) - 1;
949
dde5845a
JK		 950 for (n = 0; n < count; n++) {
951 if (field->logical_minimum < 0) /* signed values */
952 implement(data, offset + n * size, size, s32ton(field->value[n], size));
953 else /* unsigned values */
954 implement(data, offset + n * size, size, field->value[n]);
955 }
956}
957
958/*
959 * Create a report.
960 */
961
229695e5 962void hid_output_report(struct hid_report *report, __u8 *data)
dde5845a
JK		 963{
964 unsigned n;
965
966 if (report->id > 0)
967 *data++ = report->id;
968
969 for (n = 0; n < report->maxfield; n++)
970 hid_output_field(report->field[n], data);
971}
229695e5 972EXPORT_SYMBOL_GPL(hid_output_report);
dde5845a
JK		 973
974/*
975 * Set a field value. The report this field belongs to has to be
976 * created and transferred to the device, to set this value in the
977 * device.
978 */
979
980int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
981{
982 unsigned size = field->report_size;
983
984 hid_dump_input(field->usage + offset, value);
985
986 if (offset >= field->report_count) {
58037eb9 987 dbg_hid("offset (%d) exceeds report_count (%d)\n", offset, field->report_count);
dde5845a
JK		 988 return -1;
989 }
990 if (field->logical_minimum < 0) {
991 if (value != snto32(s32ton(value, size), size)) {
58037eb9 992 dbg_hid("value %d is out of range\n", value);
dde5845a
JK		 993 return -1;
994 }
995 }
996 field->value[offset] = value;
997 return 0;
998}
229695e5 999EXPORT_SYMBOL_GPL(hid_set_field);
dde5845a 1000
85cdaf52
JS		 1001static struct hid_report *hid_get_report(struct hid_report_enum *report_enum,
1002 const u8 *data)
aa8de2f0 1003{
aa8de2f0 1004 struct hid_report *report;
85cdaf52 1005 unsigned int n = 0; /* Normally report number is 0 */
aa8de2f0 1006
85cdaf52
JS		 1007 /* Device uses numbered reports, data[0] is report number */
1008 if (report_enum->numbered)
1009 n = *data;
aa8de2f0 1010
85cdaf52
JS		 1011 report = report_enum->report_id_hash[n];
1012 if (report == NULL)
1013 dbg_hid("undefined report_id %u received\n", n);
aa8de2f0 1014
85cdaf52
JS		 1015 return report;
1016}
aa8de2f0 1017
85cdaf52
JS		 1018void hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
1019 int interrupt)
1020{
1021 struct hid_report_enum *report_enum = hid->report_enum + type;
1022 struct hid_report *report;
1023 unsigned int a;
1024 int rsize, csize = size;
1025 u8 *cdata = data;
aa8de2f0 1026
85cdaf52
JS		 1027 report = hid_get_report(report_enum, data);
1028 if (!report)
1029 return;
aa8de2f0 1030
85cdaf52
JS		 1031 if (report_enum->numbered) {
1032 cdata++;
1033 csize--;
aa8de2f0
JK		 1034 }
1035
1036 rsize = ((report->size - 1) >> 3) + 1;
1037
85cdaf52
JS		 1038 if (csize < rsize) {
1039 dbg_hid("report %d is too short, (%d < %d)\n", report->id,
1040 csize, rsize);
1041 memset(cdata + csize, 0, rsize - csize);
aa8de2f0
JK		 1042 }
1043
1044 if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event)
1045 hid->hiddev_report_event(hid, report);
b54ec3c1
JK		 1046 if (hid->claimed & HID_CLAIMED_HIDRAW) {
1047 /* numbered reports need to be passed with the report num */
1048 if (report_enum->numbered)
1049 hidraw_report_event(hid, data - 1, size + 1);
1050 else
1051 hidraw_report_event(hid, data, size);
1052 }
aa8de2f0 1053
85cdaf52
JS		 1054 for (a = 0; a < report->maxfield; a++)
1055 hid_input_field(hid, report->field[a], cdata, interrupt);
aa8de2f0
JK		 1056
1057 if (hid->claimed & HID_CLAIMED_INPUT)
1058 hidinput_report_event(hid, report);
85cdaf52
JS		 1059}
1060EXPORT_SYMBOL_GPL(hid_report_raw_event);
1061
1062/**
1063 * hid_input_report - report data from lower layer (usb, bt...)
1064 *
1065 * @hid: hid device
1066 * @type: HID report type (HID_*_REPORT)
1067 * @data: report contents
1068 * @size: size of data parameter
1069 * @interrupt: called from atomic?
1070 *
1071 * This is data entry for lower layers.
1072 */
1073int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt)
1074{
1075 struct hid_report_enum *report_enum = hid->report_enum + type;
1076 struct hid_driver *hdrv = hid->driver;
1077 struct hid_report *report;
1078 unsigned int i;
1079 int ret;
1080
1081 if (!hid || !hid->driver)
1082 return -ENODEV;
1083
1084 if (!size) {
1085 dbg_hid("empty report\n");
1086 return -1;
1087 }
1088
1089 dbg_hid("report (size %u) (%snumbered)\n", size, report_enum->numbered ? "" : "un");
1090
1091 report = hid_get_report(report_enum, data);
1092 if (!report)
1093 return -1;
1094
1095 /* dump the report */
1096 dbg_hid("report %d (size %u) = ", report->id, size);
1097 for (i = 0; i < size; i++)
1098 dbg_hid_line(" %02x", data[i]);
1099 dbg_hid_line("\n");
1100
1101 if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) {
1102 ret = hdrv->raw_event(hid, report, data, size);
1103 if (ret != 0)
1104 return ret < 0 ? ret : 0;
1105 }
1106
1107 hid_report_raw_event(hid, type, data, size, interrupt);
aa8de2f0
JK		 1108
1109 return 0;
1110}
1111EXPORT_SYMBOL_GPL(hid_input_report);
1112
0f37cd03
JK		 1113static bool hid_match_one_id(struct hid_device *hdev,
1114 const struct hid_device_id *id)
1115{
1116 return id->bus == hdev->bus &&
1117 (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) &&
1118 (id->product == HID_ANY_ID || id->product == hdev->product);
1119}
1120
1121static const struct hid_device_id *hid_match_id(struct hid_device *hdev,
1122 const struct hid_device_id *id)
1123{
1124 for (; id->bus; id++)
1125 if (hid_match_one_id(hdev, id))
1126 return id;
1127
1128 return NULL;
1129}
1130
1131static const struct hid_device_id hid_hiddev_list[] = {
c0bd6a42
RH		 1132 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) },
1133 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) },
0f37cd03
JK		 1134 { }
1135};
1136
1137static bool hid_hiddev(struct hid_device *hdev)
1138{
1139 return !!hid_match_id(hdev, hid_hiddev_list);
1140}
1141
93c10132
JS		 1142int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
1143{
1144 static const char *types[] = { "Device", "Pointer", "Mouse", "Device",
1145 "Joystick", "Gamepad", "Keyboard", "Keypad",
1146 "Multi-Axis Controller"
1147 };
1148 const char *type, *bus;
1149 char buf[64];
1150 unsigned int i;
1151 int len;
1152
1153 if (hdev->bus != BUS_USB)
1154 connect_mask &= ~HID_CONNECT_HIDDEV;
0f37cd03
JK		 1155 if (hid_hiddev(hdev))
1156 connect_mask |= HID_CONNECT_HIDDEV_FORCE;
93c10132
JS		 1157
1158 if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,
1159 connect_mask & HID_CONNECT_HIDINPUT_FORCE))
1160 hdev->claimed |= HID_CLAIMED_INPUT;
1161 if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect &&
1162 !hdev->hiddev_connect(hdev,
1163 connect_mask & HID_CONNECT_HIDDEV_FORCE))
1164 hdev->claimed |= HID_CLAIMED_HIDDEV;
1165 if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev))
1166 hdev->claimed |= HID_CLAIMED_HIDRAW;
1167
1168 if (!hdev->claimed) {
1169 dev_err(&hdev->dev, "claimed by neither input, hiddev nor "
1170 "hidraw\n");
1171 return -ENODEV;
1172 }
1173
1174 if ((hdev->claimed & HID_CLAIMED_INPUT) &&
1175 (connect_mask & HID_CONNECT_FF) && hdev->ff_init)
1176 hdev->ff_init(hdev);
1177
1178 len = 0;
1179 if (hdev->claimed & HID_CLAIMED_INPUT)
1180 len += sprintf(buf + len, "input");
1181 if (hdev->claimed & HID_CLAIMED_HIDDEV)
1182 len += sprintf(buf + len, "%shiddev%d", len ? "," : "",
1183 hdev->minor);
1184 if (hdev->claimed & HID_CLAIMED_HIDRAW)
1185 len += sprintf(buf + len, "%shidraw%d", len ? "," : "",
1186 ((struct hidraw *)hdev->hidraw)->minor);
1187
1188 type = "Device";
1189 for (i = 0; i < hdev->maxcollection; i++) {
1190 struct hid_collection *col = &hdev->collection[i];
1191 if (col->type == HID_COLLECTION_APPLICATION &&
1192 (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
1193 (col->usage & 0xffff) < ARRAY_SIZE(types)) {
1194 type = types[col->usage & 0xffff];
1195 break;
1196 }
1197 }
1198
1199 switch (hdev->bus) {
1200 case BUS_USB:
1201 bus = "USB";
1202 break;
1203 case BUS_BLUETOOTH:
1204 bus = "BLUETOOTH";
1205 break;
1206 default:
1207 bus = "<UNKNOWN>";
1208 }
1209
1210 dev_info(&hdev->dev, "%s: %s HID v%x.%02x %s [%s] on %s\n",
1211 buf, bus, hdev->version >> 8, hdev->version & 0xff,
1212 type, hdev->name, hdev->phys);
1213
1214 return 0;
1215}
1216EXPORT_SYMBOL_GPL(hid_connect);
1217
bae7eb33 1218/* a list of devices for which there is a specialized driver on HID bus */
85cdaf52 1219static const struct hid_device_id hid_blacklist[] = {
14a21cd4
JS		 1220 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
1221 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
df9bcace 1222 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ATV_IRCONTROL) },
8c19a515
JS		 1223 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
1224 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
1225 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1226 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1227 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1228 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1229 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1230 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1231 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1232 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1233 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1234 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1235 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
fef3f571
RF		 1236 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) },
1237 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) },
1238 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) },
8c19a515
JS		 1239 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) },
1240 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) },
1241 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) },
1242 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1243 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1244 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
ee8a1a0a
JS		 1245 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) },
1246 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) },
1247 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) },
8c19a515
JS		 1248 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1249 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1250 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1251 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1252 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1253 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
a96d6ef3
HR		 1254 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1255 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1256 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
8c19a515
JS		 1257 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1258 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
b5635b12 1259 { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
3b239cd7 1260 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
fcfacfd3 1261 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
0f221320
JS		 1262 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) },
1263 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) },
1264 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
3f866fbd 1265 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
1f243e30 1266 { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
5181e594 1267 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) },
578f3a35 1268 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) },
5181e594 1269 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) },
42859e0b 1270 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) },
949f8fef 1271 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
1e093206 1272 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
fdf93aa3 1273 { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
79422741 1274 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
b5635b12 1275 { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
5f22a799
JS		 1276 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
1277 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
1278 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) },
1279 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) },
1280 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) },
1281 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) },
1282 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) },
5f22a799
JS		 1283 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) },
1284 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) },
5f22a799
JS		 1285 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) },
1286 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) },
606bd0a8
JS		 1287 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
1288 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },
1289 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
1290 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
1291 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
1292 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
243b706d 1293 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
606bd0a8 1294 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) },
78a849a6
JS		 1295 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) },
1296 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) },
1297 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) },
1298 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) },
1299 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
3b8006e5 1300 { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
94011f93 1301 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
1e762532 1302 { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
980a3da6 1303 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
bd28ce00 1304 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
cc6e0bbb 1305 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
90231e7e 1306 { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
daedb3d6
AH		 1307 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
1308 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
1309 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
1310 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
f14f526d 1311 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
daedb3d6
AH		 1312 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
1313 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
8c19a515
JS		 1314
1315 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, 0x030c) },
78a849a6 1316 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
85cdaf52
JS		 1317 { }
1318};
1319
3a6f82f7
JS		 1320struct hid_dynid {
1321 struct list_head list;
1322 struct hid_device_id id;
1323};
1324
1325/**
1326 * store_new_id - add a new HID device ID to this driver and re-probe devices
1327 * @driver: target device driver
1328 * @buf: buffer for scanning device ID data
1329 * @count: input size
1330 *
1331 * Adds a new dynamic hid device ID to this driver,
1332 * and causes the driver to probe for all devices again.
1333 */
1334static ssize_t store_new_id(struct device_driver *drv, const char *buf,
1335 size_t count)
1336{
1337 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1338 struct hid_dynid *dynid;
1339 __u32 bus, vendor, product;
1340 unsigned long driver_data = 0;
1341 int ret;
1342
1343 ret = sscanf(buf, "%x %x %x %lx",
1344 &bus, &vendor, &product, &driver_data);
1345 if (ret < 3)
1346 return -EINVAL;
1347
1348 dynid = kzalloc(sizeof(*dynid), GFP_KERNEL);
1349 if (!dynid)
1350 return -ENOMEM;
1351
1352 dynid->id.bus = bus;
1353 dynid->id.vendor = vendor;
1354 dynid->id.product = product;
1355 dynid->id.driver_data = driver_data;
1356
1357 spin_lock(&hdrv->dyn_lock);
1358 list_add_tail(&dynid->list, &hdrv->dyn_list);
1359 spin_unlock(&hdrv->dyn_lock);
1360
1361 ret = 0;
1362 if (get_driver(&hdrv->driver)) {
1363 ret = driver_attach(&hdrv->driver);
1364 put_driver(&hdrv->driver);
1365 }
1366
1367 return ret ? : count;
1368}
1369static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
1370
1371static void hid_free_dynids(struct hid_driver *hdrv)
1372{
1373 struct hid_dynid *dynid, *n;
1374
1375 spin_lock(&hdrv->dyn_lock);
1376 list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) {
1377 list_del(&dynid->list);
1378 kfree(dynid);
1379 }
1380 spin_unlock(&hdrv->dyn_lock);
1381}
1382
1383static const struct hid_device_id *hid_match_device(struct hid_device *hdev,
1384 struct hid_driver *hdrv)
1385{
1386 struct hid_dynid *dynid;
1387
1388 spin_lock(&hdrv->dyn_lock);
1389 list_for_each_entry(dynid, &hdrv->dyn_list, list) {
1390 if (hid_match_one_id(hdev, &dynid->id)) {
1391 spin_unlock(&hdrv->dyn_lock);
1392 return &dynid->id;
1393 }
1394 }
1395 spin_unlock(&hdrv->dyn_lock);
1396
1397 return hid_match_id(hdev, hdrv->id_table);
1398}
1399
85cdaf52
JS		 1400static int hid_bus_match(struct device *dev, struct device_driver *drv)
1401{
1402 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1403 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1404
3a6f82f7 1405 if (!hid_match_device(hdev, hdrv))
85cdaf52
JS		 1406 return 0;
1407
1408 /* generic wants all non-blacklisted */
1409 if (!strncmp(hdrv->name, "generic-", 8))
1410 return !hid_match_id(hdev, hid_blacklist);
1411
1412 return 1;
1413}
1414
1415static int hid_device_probe(struct device *dev)
1416{
1417 struct hid_driver *hdrv = container_of(dev->driver,
1418 struct hid_driver, driver);
1419 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1420 const struct hid_device_id *id;
1421 int ret = 0;
1422
1423 if (!hdev->driver) {
3a6f82f7 1424 id = hid_match_device(hdev, hdrv);
c500c971
JS		 1425 if (id == NULL)
1426 return -ENODEV;
85cdaf52 1427
c500c971
JS		 1428 hdev->driver = hdrv;
1429 if (hdrv->probe) {
1430 ret = hdrv->probe(hdev, id);
1431 } else { /* default probe */
1432 ret = hid_parse(hdev);
1433 if (!ret)
93c10132 1434 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
85cdaf52 1435 }
c500c971
JS		 1436 if (ret)
1437 hdev->driver = NULL;
85cdaf52
JS		 1438 }
1439 return ret;
1440}
1441
1442static int hid_device_remove(struct device *dev)
1443{
1444 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1445 struct hid_driver *hdrv = hdev->driver;
1446
1447 if (hdrv) {
1448 if (hdrv->remove)
1449 hdrv->remove(hdev);
c500c971
JS		 1450 else /* default remove */
1451 hid_hw_stop(hdev);
85cdaf52
JS		 1452 hdev->driver = NULL;
1453 }
1454
1455 return 0;
1456}
1457
1458static int hid_uevent(struct device *dev, struct kobj_uevent_env *env)
1459{
1460 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1461
1462 if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X",
1463 hdev->bus, hdev->vendor, hdev->product))
1464 return -ENOMEM;
1465
1466 if (add_uevent_var(env, "HID_NAME=%s", hdev->name))
1467 return -ENOMEM;
1468
1469 if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys))
1470 return -ENOMEM;
1471
1472 if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq))
1473 return -ENOMEM;
1474
1475 if (add_uevent_var(env, "MODALIAS=hid:b%04Xv%08Xp%08X",
1476 hdev->bus, hdev->vendor, hdev->product))
1477 return -ENOMEM;
1478
1479 return 0;
1480}
1481
1482static struct bus_type hid_bus_type = {
1483 .name = "hid",
1484 .match = hid_bus_match,
1485 .probe = hid_device_probe,
1486 .remove = hid_device_remove,
1487 .uevent = hid_uevent,
1488};
1489
bae7eb33 1490/* a list of devices that shouldn't be handled by HID core at all */
d458a9df
JS		 1491static const struct hid_device_id hid_ignore_list[] = {
1492 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) },
1493 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) },
1494 { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) },
1495 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) },
1496 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) },
1497 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) },
1498 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) },
1499 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) },
1500 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) },
1501 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) },
1502 { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) },
1503 { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) },
1504 { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_LCM)},
ac2d9899 1505 { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_LCM2)},
62a56582 1506 { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) },
d458a9df
JS		 1507 { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) },
1508 { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) },
1509 { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) },
1510 { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) },
1511 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) },
1512 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) },
5f6108cf 1513 { HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) },
d458a9df
JS		 1514 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) },
1515 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
1516 { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
1517 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) },
1518 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) },
1519 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0003) },
1520 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) },
1521 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) },
1522 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) },
1523 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) },
1524 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) },
1525 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) },
1526 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) },
1527 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) },
1528 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) },
1529 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) },
1530 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) },
1531 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) },
1532 { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) },
1533 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) },
1534 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) },
1535 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) },
1536 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) },
1537 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) },
1538 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) },
1539 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) },
1540 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) },
1541 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) },
1542 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) },
1543 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) },
1544 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) },
1545 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) },
1546 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) },
1547 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) },
1548 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) },
1549 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) },
1550 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) },
1551 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) },
1552 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) },
1553 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) },
1554 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) },
1555 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) },
1556 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) },
1557 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) },
1558 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) },
1559 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) },
1560 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) },
1561 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) },
1562 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) },
1563 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) },
1564 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) },
1565 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) },
1566 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) },
1567 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) },
1568 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) },
1569 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) },
1570 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) },
1571 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) },
1572 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) },
1573 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) },
1574 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) },
1575 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) },
1576 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) },
1577 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) },
1578 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) },
1579 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) },
1580 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) },
1581 { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) },
1582 { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) },
c91c21c5 1583 { HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) },
d458a9df
JS		 1584 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) },
1585 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) },
1586 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) },
1587 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) },
1588 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) },
1589 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) },
1590 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) },
1591 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY1) },
1592 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) },
1593 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) },
1594 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) },
1595 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) },
1596 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) },
1597 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) },
1598 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) },
1599 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) },
1600 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) },
d458a9df
JS		 1601 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) },
1602 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) },
1603 { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) },
1604 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) },
1605 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) },
1606 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) },
1607 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) },
1608 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) },
1609 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) },
1610 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) },
1611 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) },
1612 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) },
1613 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) },
1614 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) },
1615 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) },
1616 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) },
1617 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
35cfd1d9 1618 { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
d458a9df 1619 { HID_USB_DEVICE(USB_VENDOR_ID_SOUNDGRAPH, USB_DEVICE_ID_SOUNDGRAPH_IMON_LCD) },
24c88eb6
JW		 1620 { HID_USB_DEVICE(USB_VENDOR_ID_SOUNDGRAPH, USB_DEVICE_ID_SOUNDGRAPH_IMON_LCD2) },
1621 { HID_USB_DEVICE(USB_VENDOR_ID_SOUNDGRAPH, USB_DEVICE_ID_SOUNDGRAPH_IMON_LCD3) },
656f1fb9
JW		 1622 { HID_USB_DEVICE(USB_VENDOR_ID_SOUNDGRAPH, USB_DEVICE_ID_SOUNDGRAPH_IMON_LCD4) },
1623 { HID_USB_DEVICE(USB_VENDOR_ID_SOUNDGRAPH, USB_DEVICE_ID_SOUNDGRAPH_IMON_LCD5) },
d1d3a5f6
RC		 1624 { HID_USB_DEVICE(USB_VENDOR_ID_TENX, USB_DEVICE_ID_TENX_IBUDDY1) },
1625 { HID_USB_DEVICE(USB_VENDOR_ID_TENX, USB_DEVICE_ID_TENX_IBUDDY2) },
d458a9df
JS		 1626 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) },
1627 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
1628 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },
1629 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) },
1630 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) },
1631 { HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) },
1632 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) },
1633 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) },
1634 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) },
1635 { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) },
1636 { }
1637};
1638
b4d8e473
JS		 1639/**
1640 * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer
1641 *
1642 * There are composite devices for which we want to ignore only a certain
1643 * interface. This is a list of devices for which only the mouse interface will
1644 * be ignored. This allows a dedicated driver to take care of the interface.
1645 */
1646static const struct hid_device_id hid_mouse_ignore_list[] = {
1647 /* appletouch driver */
1648 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1649 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1650 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1651 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1652 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1653 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1654 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1655 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1656 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1657 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1658 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1659 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1660 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1661 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
1662 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1663 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1664 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1665 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1666 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1667 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
ac26fca3
JK		 1668 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1669 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1670 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
b4d8e473
JS		 1671 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1672 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1673 { }
1674};
1675
d458a9df
JS		 1676static bool hid_ignore(struct hid_device *hdev)
1677{
1678 switch (hdev->vendor) {
1679 case USB_VENDOR_ID_CODEMERCS:
1680 /* ignore all Code Mercenaries IOWarrior devices */
1681 if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST &&
1682 hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST)
1683 return true;
1684 break;
1685 case USB_VENDOR_ID_LOGITECH:
1686 if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST &&
1687 hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST)
1688 return true;
1689 break;
1690 }
1691
b4d8e473
JS		 1692 if (hdev->type == HID_TYPE_USBMOUSE &&
1693 hid_match_id(hdev, hid_mouse_ignore_list))
1694 return true;
1695
d458a9df
JS		 1696 return !!hid_match_id(hdev, hid_ignore_list);
1697}
1698
85cdaf52
JS		 1699int hid_add_device(struct hid_device *hdev)
1700{
1701 static atomic_t id = ATOMIC_INIT(0);
1702 int ret;
1703
1704 if (WARN_ON(hdev->status & HID_STAT_ADDED))
1705 return -EBUSY;
1706
d458a9df
JS		 1707 /* we need to kill them here, otherwise they will stay allocated to
1708 * wait for coming driver */
1709 if (hid_ignore(hdev))
1710 return -ENODEV;
1711
6bbe586f
KS		 1712 /* XXX hack, any other cleaner solution after the driver core
1713 * is converted to allow more than 20 bytes as the device name? */
1714 dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
1715 hdev->vendor, hdev->product, atomic_inc_return(&id));
85cdaf52
JS		 1716
1717 ret = device_add(&hdev->dev);
1718 if (!ret)
1719 hdev->status |= HID_STAT_ADDED;
1720
a635f9dd
JK		 1721 hid_debug_register(hdev, dev_name(&hdev->dev));
1722
85cdaf52
JS		 1723 return ret;
1724}
1725EXPORT_SYMBOL_GPL(hid_add_device);
1726
1727/**
1728 * hid_allocate_device - allocate new hid device descriptor
1729 *
1730 * Allocate and initialize hid device, so that hid_destroy_device might be
1731 * used to free it.
1732 *
1733 * New hid_device pointer is returned on success, otherwise ERR_PTR encoded
1734 * error value.
1735 */
1736struct hid_device *hid_allocate_device(void)
1737{
1738 struct hid_device *hdev;
1739 unsigned int i;
1740 int ret = -ENOMEM;
1741
1742 hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
1743 if (hdev == NULL)
1744 return ERR_PTR(ret);
1745
1746 device_initialize(&hdev->dev);
1747 hdev->dev.release = hid_device_release;
1748 hdev->dev.bus = &hid_bus_type;
1749
1750 hdev->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS,
1751 sizeof(struct hid_collection), GFP_KERNEL);
1752 if (hdev->collection == NULL)
1753 goto err;
1754 hdev->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
1755
1756 for (i = 0; i < HID_REPORT_TYPES; i++)
1757 INIT_LIST_HEAD(&hdev->report_enum[i].report_list);
1758
1759 return hdev;
1760err:
1761 put_device(&hdev->dev);
1762 return ERR_PTR(ret);
1763}
1764EXPORT_SYMBOL_GPL(hid_allocate_device);
1765
1766static void hid_remove_device(struct hid_device *hdev)
1767{
1768 if (hdev->status & HID_STAT_ADDED) {
1769 device_del(&hdev->dev);
a635f9dd 1770 hid_debug_unregister(hdev);
85cdaf52
JS		 1771 hdev->status &= ~HID_STAT_ADDED;
1772 }
1773}
1774
1775/**
1776 * hid_destroy_device - free previously allocated device
1777 *
1778 * @hdev: hid device
1779 *
1780 * If you allocate hid_device through hid_allocate_device, you should ever
1781 * free by this function.
1782 */
1783void hid_destroy_device(struct hid_device *hdev)
1784{
1785 hid_remove_device(hdev);
1786 put_device(&hdev->dev);
1787}
1788EXPORT_SYMBOL_GPL(hid_destroy_device);
1789
1790int __hid_register_driver(struct hid_driver *hdrv, struct module *owner,
1791 const char *mod_name)
1792{
3a6f82f7
JS		 1793 int ret;
1794
85cdaf52
JS		 1795 hdrv->driver.name = hdrv->name;
1796 hdrv->driver.bus = &hid_bus_type;
1797 hdrv->driver.owner = owner;
1798 hdrv->driver.mod_name = mod_name;
1799
3a6f82f7
JS		 1800 INIT_LIST_HEAD(&hdrv->dyn_list);
1801 spin_lock_init(&hdrv->dyn_lock);
1802
1803 ret = driver_register(&hdrv->driver);
1804 if (ret)
1805 return ret;
1806
1807 ret = driver_create_file(&hdrv->driver, &driver_attr_new_id);
1808 if (ret)
1809 driver_unregister(&hdrv->driver);
1810
1811 return ret;
85cdaf52
JS		 1812}
1813EXPORT_SYMBOL_GPL(__hid_register_driver);
1814
1815void hid_unregister_driver(struct hid_driver *hdrv)
1816{
3a6f82f7 1817 driver_remove_file(&hdrv->driver, &driver_attr_new_id);
85cdaf52 1818 driver_unregister(&hdrv->driver);
3a6f82f7 1819 hid_free_dynids(hdrv);
85cdaf52
JS		 1820}
1821EXPORT_SYMBOL_GPL(hid_unregister_driver);
1822
0361a28d
ON		 1823int hid_check_keys_pressed(struct hid_device *hid)
1824{
1825 struct hid_input *hidinput;
1826 int i;
1827
e5288eb5
JK		 1828 if (!(hid->claimed & HID_CLAIMED_INPUT))
1829 return 0;
1830
0361a28d
ON		 1831 list_for_each_entry(hidinput, &hid->inputs, list) {
1832 for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++)
1833 if (hidinput->input->key[i])
1834 return 1;
1835 }
1836
1837 return 0;
1838}
1839
1840EXPORT_SYMBOL_GPL(hid_check_keys_pressed);
1841
86166b7b
JK		 1842static int __init hid_init(void)
1843{
85cdaf52
JS		 1844 int ret;
1845
a635f9dd
JK		 1846 if (hid_debug)
1847 printk(KERN_WARNING "HID: hid_debug parameter has been deprecated. "
1848 "Debugging data are now provided via debugfs\n");
1849
85cdaf52
JS		 1850 ret = bus_register(&hid_bus_type);
1851 if (ret) {
1852 printk(KERN_ERR "HID: can't register hid bus\n");
1853 goto err;
1854 }
1855
1856 ret = hidraw_init();
1857 if (ret)
1858 goto err_bus;
1859
a635f9dd
JK		 1860 hid_debug_init();
1861
85cdaf52
JS		 1862 return 0;
1863err_bus:
1864 bus_unregister(&hid_bus_type);
1865err:
1866 return ret;
86166b7b
JK		 1867}
1868
1869static void __exit hid_exit(void)
1870{
a635f9dd 1871 hid_debug_exit();
86166b7b 1872 hidraw_exit();
85cdaf52 1873 bus_unregister(&hid_bus_type);
86166b7b
JK		 1874}
1875
1876module_init(hid_init);
1877module_exit(hid_exit);
1878
aa938f79
JK		 1879MODULE_LICENSE(DRIVER_LICENSE);
1880
kernel source for telekom puls (alcatel/mediatek)