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authorJiri Kosina <jkosina@suse.cz>2006-12-08 12:40:44 -0500
committerGreg Kroah-Hartman <gregkh@suse.de>2006-12-08 13:43:01 -0500
commitdde5845a529ff753364a6d1aea61180946270bfa (patch)
treee0160fe45c047024b281a2805196a8c64242b59e
parent64bb67b1702958759f650adb64ab33496641e526 (diff)
[PATCH] Generic HID layer - code split
The "big main" split of USB HID code into generic HID code and USB-transport specific HID handling. Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat
-rw-r--r--drivers/hid/hid-core.c940
-rw-r--r--drivers/hid/hid-input.c840
-rw-r--r--drivers/usb/input/hid-core.c1039
-rw-r--r--drivers/usb/input/hid-ff.c2
-rw-r--r--drivers/usb/input/hid-input.c844
-rw-r--r--drivers/usb/input/hid-lgff.c2
-rw-r--r--drivers/usb/input/hid-pidff.c4
-rw-r--r--drivers/usb/input/hid-tmff.c2
-rw-r--r--drivers/usb/input/hid-zpff.c2
-rw-r--r--drivers/usb/input/hiddev.c3
-rw-r--r--include/linux/hid-debug.h (renamed from drivers/usb/input/hid-debug.h)0
-rw-r--r--include/linux/hid.h (renamed from drivers/usb/input/hid.h)20
12 files changed, 1896 insertions, 1802 deletions
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
new file mode 100644
index 000000000000..689ae16adf33
--- /dev/null
+++ b/drivers/hid/hid-core.c
@@ -0,0 +1,940 @@
1/*
2 * USB HID support for Linux
3 *
4 * Copyright (c) 1999 Andreas Gal
5 * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
6 * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
7 * Copyright (c) 2006 Jiri Kosina
8 */
9
10/*
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the Free
13 * Software Foundation; either version 2 of the License, or (at your option)
14 * any later version.
15 */
16
17#include <linux/module.h>
18#include <linux/slab.h>
19#include <linux/init.h>
20#include <linux/kernel.h>
21#include <linux/sched.h>
22#include <linux/list.h>
23#include <linux/mm.h>
24#include <linux/smp_lock.h>
25#include <linux/spinlock.h>
26#include <asm/unaligned.h>
27#include <asm/byteorder.h>
28#include <linux/input.h>
29#include <linux/wait.h>
30
31#undef DEBUG
32#undef DEBUG_DATA
33
34#include <linux/usb.h>
35
36#include <linux/hid.h>
37#include <linux/hiddev.h>
38
39/*
40 * Version Information
41 */
42
43#define DRIVER_VERSION "v2.6"
44#define DRIVER_AUTHOR "Andreas Gal, Vojtech Pavlik"
45#define DRIVER_DESC "USB HID core driver"
46#define DRIVER_LICENSE "GPL"
47
48/*
49 * Module parameters.
50 */
51
52static unsigned int hid_mousepoll_interval;
53module_param_named(mousepoll, hid_mousepoll_interval, uint, 0644);
54MODULE_PARM_DESC(mousepoll, "Polling interval of mice");
55
56/*
57 * Register a new report for a device.
58 */
59
60static struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
61{
62 struct hid_report_enum *report_enum = device->report_enum + type;
63 struct hid_report *report;
64
65 if (report_enum->report_id_hash[id])
66 return report_enum->report_id_hash[id];
67
68 if (!(report = kzalloc(sizeof(struct hid_report), GFP_KERNEL)))
69 return NULL;
70
71 if (id != 0)
72 report_enum->numbered = 1;
73
74 report->id = id;
75 report->type = type;
76 report->size = 0;
77 report->device = device;
78 report_enum->report_id_hash[id] = report;
79
80 list_add_tail(&report->list, &report_enum->report_list);
81
82 return report;
83}
84
85/*
86 * Register a new field for this report.
87 */
88
89static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values)
90{
91 struct hid_field *field;
92
93 if (report->maxfield == HID_MAX_FIELDS) {
94 dbg("too many fields in report");
95 return NULL;
96 }
97
98 if (!(field = kzalloc(sizeof(struct hid_field) + usages * sizeof(struct hid_usage)
99 + values * sizeof(unsigned), GFP_KERNEL))) return NULL;
100
101 field->index = report->maxfield++;
102 report->field[field->index] = field;
103 field->usage = (struct hid_usage *)(field + 1);
104 field->value = (unsigned *)(field->usage + usages);
105 field->report = report;
106
107 return field;
108}
109
110/*
111 * Open a collection. The type/usage is pushed on the stack.
112 */
113
114static int open_collection(struct hid_parser *parser, unsigned type)
115{
116 struct hid_collection *collection;
117 unsigned usage;
118
119 usage = parser->local.usage[0];
120
121 if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) {
122 dbg("collection stack overflow");
123 return -1;
124 }
125
126 if (parser->device->maxcollection == parser->device->collection_size) {
127 collection = kmalloc(sizeof(struct hid_collection) *
128 parser->device->collection_size * 2, GFP_KERNEL);
129 if (collection == NULL) {
130 dbg("failed to reallocate collection array");
131 return -1;
132 }
133 memcpy(collection, parser->device->collection,
134 sizeof(struct hid_collection) *
135 parser->device->collection_size);
136 memset(collection + parser->device->collection_size, 0,
137 sizeof(struct hid_collection) *
138 parser->device->collection_size);
139 kfree(parser->device->collection);
140 parser->device->collection = collection;
141 parser->device->collection_size *= 2;
142 }
143
144 parser->collection_stack[parser->collection_stack_ptr++] =
145 parser->device->maxcollection;
146
147 collection = parser->device->collection +
148 parser->device->maxcollection++;
149 collection->type = type;
150 collection->usage = usage;
151 collection->level = parser->collection_stack_ptr - 1;
152
153 if (type == HID_COLLECTION_APPLICATION)
154 parser->device->maxapplication++;
155
156 return 0;
157}
158
159/*
160 * Close a collection.
161 */
162
163static int close_collection(struct hid_parser *parser)
164{
165 if (!parser->collection_stack_ptr) {
166 dbg("collection stack underflow");
167 return -1;
168 }
169 parser->collection_stack_ptr--;
170 return 0;
171}
172
173/*
174 * Climb up the stack, search for the specified collection type
175 * and return the usage.
176 */
177
178static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type)
179{
180 int n;
181 for (n = parser->collection_stack_ptr - 1; n >= 0; n--)
182 if (parser->device->collection[parser->collection_stack[n]].type == type)
183 return parser->device->collection[parser->collection_stack[n]].usage;
184 return 0; /* we know nothing about this usage type */
185}
186
187/*
188 * Add a usage to the temporary parser table.
189 */
190
191static int hid_add_usage(struct hid_parser *parser, unsigned usage)
192{
193 if (parser->local.usage_index >= HID_MAX_USAGES) {
194 dbg("usage index exceeded");
195 return -1;
196 }
197 parser->local.usage[parser->local.usage_index] = usage;
198 parser->local.collection_index[parser->local.usage_index] =
199 parser->collection_stack_ptr ?
200 parser->collection_stack[parser->collection_stack_ptr - 1] : 0;
201 parser->local.usage_index++;
202 return 0;
203}
204
205/*
206 * Register a new field for this report.
207 */
208
209static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags)
210{
211 struct hid_report *report;
212 struct hid_field *field;
213 int usages;
214 unsigned offset;
215 int i;
216
217 if (!(report = hid_register_report(parser->device, report_type, parser->global.report_id))) {
218 dbg("hid_register_report failed");
219 return -1;
220 }
221
222 if (parser->global.logical_maximum < parser->global.logical_minimum) {
223 dbg("logical range invalid %d %d", parser->global.logical_minimum, parser->global.logical_maximum);
224 return -1;
225 }
226
227 offset = report->size;
228 report->size += parser->global.report_size * parser->global.report_count;
229
230 if (!parser->local.usage_index) /* Ignore padding fields */
231 return 0;
232
233 usages = max_t(int, parser->local.usage_index, parser->global.report_count);
234
235 if ((field = hid_register_field(report, usages, parser->global.report_count)) == NULL)
236 return 0;
237
238 field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
239 field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
240 field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
241
242 for (i = 0; i < usages; i++) {
243 int j = i;
244 /* Duplicate the last usage we parsed if we have excess values */
245 if (i >= parser->local.usage_index)
246 j = parser->local.usage_index - 1;
247 field->usage[i].hid = parser->local.usage[j];
248 field->usage[i].collection_index =
249 parser->local.collection_index[j];
250 }
251
252 field->maxusage = usages;
253 field->flags = flags;
254 field->report_offset = offset;
255 field->report_type = report_type;
256 field->report_size = parser->global.report_size;
257 field->report_count = parser->global.report_count;
258 field->logical_minimum = parser->global.logical_minimum;
259 field->logical_maximum = parser->global.logical_maximum;
260 field->physical_minimum = parser->global.physical_minimum;
261 field->physical_maximum = parser->global.physical_maximum;
262 field->unit_exponent = parser->global.unit_exponent;
263 field->unit = parser->global.unit;
264
265 return 0;
266}
267
268/*
269 * Read data value from item.
270 */
271
272static u32 item_udata(struct hid_item *item)
273{
274 switch (item->size) {
275 case 1: return item->data.u8;
276 case 2: return item->data.u16;
277 case 4: return item->data.u32;
278 }
279 return 0;
280}
281
282static s32 item_sdata(struct hid_item *item)
283{
284 switch (item->size) {
285 case 1: return item->data.s8;
286 case 2: return item->data.s16;
287 case 4: return item->data.s32;
288 }
289 return 0;
290}
291
292/*
293 * Process a global item.
294 */
295
296static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
297{
298 switch (item->tag) {
299
300 case HID_GLOBAL_ITEM_TAG_PUSH:
301
302 if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
303 dbg("global enviroment stack overflow");
304 return -1;
305 }
306
307 memcpy(parser->global_stack + parser->global_stack_ptr++,
308 &parser->global, sizeof(struct hid_global));
309 return 0;
310
311 case HID_GLOBAL_ITEM_TAG_POP:
312
313 if (!parser->global_stack_ptr) {
314 dbg("global enviroment stack underflow");
315 return -1;
316 }
317
318 memcpy(&parser->global, parser->global_stack + --parser->global_stack_ptr,
319 sizeof(struct hid_global));
320 return 0;
321
322 case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
323 parser->global.usage_page = item_udata(item);
324 return 0;
325
326 case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
327 parser->global.logical_minimum = item_sdata(item);
328 return 0;
329
330 case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
331 if (parser->global.logical_minimum < 0)
332 parser->global.logical_maximum = item_sdata(item);
333 else
334 parser->global.logical_maximum = item_udata(item);
335 return 0;
336
337 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
338 parser->global.physical_minimum = item_sdata(item);
339 return 0;
340
341 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
342 if (parser->global.physical_minimum < 0)
343 parser->global.physical_maximum = item_sdata(item);
344 else
345 parser->global.physical_maximum = item_udata(item);
346 return 0;
347
348 case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
349 parser->global.unit_exponent = item_sdata(item);
350 return 0;
351
352 case HID_GLOBAL_ITEM_TAG_UNIT:
353 parser->global.unit = item_udata(item);
354 return 0;
355
356 case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
357 if ((parser->global.report_size = item_udata(item)) > 32) {
358 dbg("invalid report_size %d", parser->global.report_size);
359 return -1;
360 }
361 return 0;
362
363 case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
364 if ((parser->global.report_count = item_udata(item)) > HID_MAX_USAGES) {
365 dbg("invalid report_count %d", parser->global.report_count);
366 return -1;
367 }
368 return 0;
369
370 case HID_GLOBAL_ITEM_TAG_REPORT_ID:
371 if ((parser->global.report_id = item_udata(item)) == 0) {
372 dbg("report_id 0 is invalid");
373 return -1;
374 }
375 return 0;
376
377 default:
378 dbg("unknown global tag 0x%x", item->tag);
379 return -1;
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) {
393 dbg("item data expected for local item");
394 return -1;
395 }
396
397 data = item_udata(item);
398
399 switch (item->tag) {
400
401 case HID_LOCAL_ITEM_TAG_DELIMITER:
402
403 if (data) {
404 /*
405 * We treat items before the first delimiter
406 * as global to all usage sets (branch 0).
407 * In the moment we process only these global
408 * items and the first delimiter set.
409 */
410 if (parser->local.delimiter_depth != 0) {
411 dbg("nested delimiters");
412 return -1;
413 }
414 parser->local.delimiter_depth++;
415 parser->local.delimiter_branch++;
416 } else {
417 if (parser->local.delimiter_depth < 1) {
418 dbg("bogus close delimiter");
419 return -1;
420 }
421 parser->local.delimiter_depth--;
422 }
423 return 1;
424
425 case HID_LOCAL_ITEM_TAG_USAGE:
426
427 if (parser->local.delimiter_branch > 1) {
428 dbg("alternative usage ignored");
429 return 0;
430 }
431
432 if (item->size <= 2)
433 data = (parser->global.usage_page << 16) + data;
434
435 return hid_add_usage(parser, data);
436
437 case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
438
439 if (parser->local.delimiter_branch > 1) {
440 dbg("alternative usage ignored");
441 return 0;
442 }
443
444 if (item->size <= 2)
445 data = (parser->global.usage_page << 16) + data;
446
447 parser->local.usage_minimum = data;
448 return 0;
449
450 case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
451
452 if (parser->local.delimiter_branch > 1) {
453 dbg("alternative usage ignored");
454 return 0;
455 }
456
457 if (item->size <= 2)
458 data = (parser->global.usage_page << 16) + data;
459
460 for (n = parser->local.usage_minimum; n <= data; n++)
461 if (hid_add_usage(parser, n)) {
462 dbg("hid_add_usage failed\n");
463 return -1;
464 }
465 return 0;
466
467 default:
468
469 dbg("unknown local item tag 0x%x", item->tag);
470 return 0;
471 }
472 return 0;
473}
474
475/*
476 * Process a main item.
477 */
478
479static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
480{
481 __u32 data;
482 int ret;
483
484 data = item_udata(item);
485
486 switch (item->tag) {
487 case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
488 ret = open_collection(parser, data & 0xff);
489 break;
490 case HID_MAIN_ITEM_TAG_END_COLLECTION:
491 ret = close_collection(parser);
492 break;
493 case HID_MAIN_ITEM_TAG_INPUT:
494 ret = hid_add_field(parser, HID_INPUT_REPORT, data);
495 break;
496 case HID_MAIN_ITEM_TAG_OUTPUT:
497 ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
498 break;
499 case HID_MAIN_ITEM_TAG_FEATURE:
500 ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
501 break;
502 default:
503 dbg("unknown main item tag 0x%x", item->tag);
504 ret = 0;
505 }
506
507 memset(&parser->local, 0, sizeof(parser->local)); /* Reset the local parser environment */
508
509 return ret;
510}
511
512/*
513 * Process a reserved item.
514 */
515
516static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
517{
518 dbg("reserved item type, tag 0x%x", item->tag);
519 return 0;
520}
521
522/*
523 * Free a report and all registered fields. The field->usage and
524 * field->value table's are allocated behind the field, so we need
525 * only to free(field) itself.
526 */
527
528static void hid_free_report(struct hid_report *report)
529{
530 unsigned n;
531
532 for (n = 0; n < report->maxfield; n++)
533 kfree(report->field[n]);
534 kfree(report);
535}
536
537/*
538 * Free a device structure, all reports, and all fields.
539 */
540
541static void hid_free_device(struct hid_device *device)
542{
543 unsigned i,j;
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);
556 kfree(device);
557}
558
559/*
560 * Fetch a report description item from the data stream. We support long
561 * items, though they are not used yet.
562 */
563
564static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
565{
566 u8 b;
567
568 if ((end - start) <= 0)
569 return NULL;
570
571 b = *start++;
572
573 item->type = (b >> 2) & 3;
574 item->tag = (b >> 4) & 15;
575
576 if (item->tag == HID_ITEM_TAG_LONG) {
577
578 item->format = HID_ITEM_FORMAT_LONG;
579
580 if ((end - start) < 2)
581 return NULL;
582
583 item->size = *start++;
584 item->tag = *start++;
585
586 if ((end - start) < item->size)
587 return NULL;
588
589 item->data.longdata = start;
590 start += item->size;
591 return start;
592 }
593
594 item->format = HID_ITEM_FORMAT_SHORT;
595 item->size = b & 3;
596
597 switch (item->size) {
598
599 case 0:
600 return start;
601
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 = le16_to_cpu(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 = le32_to_cpu(get_unaligned((__le32*)start));
620 start = (__u8 *)((__le32 *)start + 1);
621 return start;
622 }
623
624 return NULL;
625}
626
627/*
628 * Parse a report description into a hid_device structure. Reports are
629 * enumerated, fields are attached to these reports.
630 */
631
632static struct hid_device *hid_parse_report(__u8 *start, unsigned size)
633{
634 struct hid_device *device;
635 struct hid_parser *parser;
636 struct hid_item item;
637 __u8 *end;
638 unsigned i;
639 static int (*dispatch_type[])(struct hid_parser *parser,
640 struct hid_item *item) = {
641 hid_parser_main,
642 hid_parser_global,
643 hid_parser_local,
644 hid_parser_reserved
645 };
646
647 if (!(device = kzalloc(sizeof(struct hid_device), GFP_KERNEL)))
648 return NULL;
649
650 if (!(device->collection = kzalloc(sizeof(struct hid_collection) *
651 HID_DEFAULT_NUM_COLLECTIONS, GFP_KERNEL))) {
652 kfree(device);
653 return NULL;
654 }
655 device->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
656
657 for (i = 0; i < HID_REPORT_TYPES; i++)
658 INIT_LIST_HEAD(&device->report_enum[i].report_list);
659
660 if (!(device->rdesc = (__u8 *)kmalloc(size, GFP_KERNEL))) {
661 kfree(device->collection);
662 kfree(device);
663 return NULL;
664 }
665 memcpy(device->rdesc, start, size);
666 device->rsize = size;
667
668 if (!(parser = kzalloc(sizeof(struct hid_parser), GFP_KERNEL))) {
669 kfree(device->rdesc);
670 kfree(device->collection);
671 kfree(device);
672 return NULL;
673 }
674 parser->device = device;
675
676 end = start + size;
677 while ((start = fetch_item(start, end, &item)) != NULL) {
678
679 if (item.format != HID_ITEM_FORMAT_SHORT) {
680 dbg("unexpected long global item");
681 kfree(device->collection);
682 hid_free_device(device);
683 kfree(parser);
684 return NULL;
685 }
686
687 if (dispatch_type[item.type](parser, &item)) {
688 dbg("item %u %u %u %u parsing failed\n",
689 item.format, (unsigned)item.size, (unsigned)item.type, (unsigned)item.tag);
690 kfree(device->collection);
691 hid_free_device(device);
692 kfree(parser);
693 return NULL;
694 }
695
696 if (start == end) {
697 if (parser->collection_stack_ptr) {
698 dbg("unbalanced collection at end of report description");
699 kfree(device->collection);
700 hid_free_device(device);
701 kfree(parser);
702 return NULL;
703 }
704 if (parser->local.delimiter_depth) {
705 dbg("unbalanced delimiter at end of report description");
706 kfree(device->collection);
707 hid_free_device(device);
708 kfree(parser);
709 return NULL;
710 }
711 kfree(parser);
712 return device;
713 }
714 }
715
716 dbg("item fetching failed at offset %d\n", (int)(end - start));
717 kfree(device->collection);
718 hid_free_device(device);
719 kfree(parser);
720 return NULL;
721}
722
723/*
724 * Convert a signed n-bit integer to signed 32-bit integer. Common
725 * cases are done through the compiler, the screwed things has to be
726 * done by hand.
727 */
728
729static s32 snto32(__u32 value, unsigned n)
730{
731 switch (n) {
732 case 8: return ((__s8)value);
733 case 16: return ((__s16)value);
734 case 32: return ((__s32)value);
735 }
736 return value & (1 << (n - 1)) ? value | (-1 << n) : value;
737}
738
739/*
740 * Convert a signed 32-bit integer to a signed n-bit integer.
741 */
742
743static u32 s32ton(__s32 value, unsigned n)
744{
745 s32 a = value >> (n - 1);
746 if (a && a != -1)
747 return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
748 return value & ((1 << n) - 1);
749}
750
751/*
752 * Extract/implement a data field from/to a little endian report (bit array).
753 *
754 * Code sort-of follows HID spec:
755 * http://www.usb.org/developers/devclass_docs/HID1_11.pdf
756 *
757 * While the USB HID spec allows unlimited length bit fields in "report
758 * descriptors", most devices never use more than 16 bits.
759 * One model of UPS is claimed to report "LINEV" as a 32-bit field.
760 * Search linux-kernel and linux-usb-devel archives for "hid-core extract".
761 */
762
763static __inline__ __u32 extract(__u8 *report, unsigned offset, unsigned n)
764{
765 u64 x;
766
767 WARN_ON(n > 32);
768
769 report += offset >> 3; /* adjust byte index */
770 offset &= 7; /* now only need bit offset into one byte */
771 x = get_unaligned((u64 *) report);
772 x = le64_to_cpu(x);
773 x = (x >> offset) & ((1ULL << n) - 1); /* extract bit field */
774 return (u32) x;
775}
776
777/*
778 * "implement" : set bits in a little endian bit stream.
779 * Same concepts as "extract" (see comments above).
780 * The data mangled in the bit stream remains in little endian
781 * order the whole time. It make more sense to talk about
782 * endianness of register values by considering a register
783 * a "cached" copy of the little endiad bit stream.
784 */
785static __inline__ void implement(__u8 *report, unsigned offset, unsigned n, __u32 value)
786{
787 u64 x;
788 u64 m = (1ULL << n) - 1;
789
790 WARN_ON(n > 32);
791
792 WARN_ON(value > m);
793 value &= m;
794
795 report += offset >> 3;
796 offset &= 7;
797
798 x = get_unaligned((u64 *)report);
799 x &= cpu_to_le64(~(m << offset));
800 x |= cpu_to_le64(((u64) value) << offset);
801 put_unaligned(x, (u64 *) report);
802}
803
804/*
805 * Search an array for a value.
806 */
807
808static __inline__ int search(__s32 *array, __s32 value, unsigned n)
809{
810 while (n--) {
811 if (*array++ == value)
812 return 0;
813 }
814 return -1;
815}
816
817static void hid_process_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value, int interrupt)
818{
819 hid_dump_input(usage, value);
820 if (hid->claimed & HID_CLAIMED_INPUT)
821 hidinput_hid_event(hid, field, usage, value);
822 if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt)
823 hiddev_hid_event(hid, field, usage, value);
824}
825
826/*
827 * Analyse a received field, and fetch the data from it. The field
828 * content is stored for next report processing (we do differential
829 * reporting to the layer).
830 */
831
832static void hid_input_field(struct hid_device *hid, struct hid_field *field, __u8 *data, int interrupt)
833{
834 unsigned n;
835 unsigned count = field->report_count;
836 unsigned offset = field->report_offset;
837 unsigned size = field->report_size;
838 __s32 min = field->logical_minimum;
839 __s32 max = field->logical_maximum;
840 __s32 *value;
841
842 if (!(value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC)))
843 return;
844
845 for (n = 0; n < count; n++) {
846
847 value[n] = min < 0 ? snto32(extract(data, offset + n * size, size), size) :
848 extract(data, offset + n * size, size);
849
850 if (!(field->flags & HID_MAIN_ITEM_VARIABLE) /* Ignore report if ErrorRollOver */
851 && value[n] >= min && value[n] <= max
852 && field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
853 goto exit;
854 }
855
856 for (n = 0; n < count; n++) {
857
858 if (HID_MAIN_ITEM_VARIABLE & field->flags) {
859 hid_process_event(hid, field, &field->usage[n], value[n], interrupt);
860 continue;
861 }
862
863 if (field->value[n] >= min && field->value[n] <= max
864 && field->usage[field->value[n] - min].hid
865 && search(value, field->value[n], count))
866 hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt);
867
868 if (value[n] >= min && value[n] <= max
869 && field->usage[value[n] - min].hid
870 && search(field->value, value[n], count))
871 hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt);
872 }
873
874 memcpy(field->value, value, count * sizeof(__s32));
875exit:
876 kfree(value);
877}
878
879
880/*
881 * Output the field into the report.
882 */
883
884static void hid_output_field(struct hid_field *field, __u8 *data)
885{
886 unsigned count = field->report_count;
887 unsigned offset = field->report_offset;
888 unsigned size = field->report_size;
889 unsigned n;
890
891 for (n = 0; n < count; n++) {
892 if (field->logical_minimum < 0) /* signed values */
893 implement(data, offset + n * size, size, s32ton(field->value[n], size));
894 else /* unsigned values */
895 implement(data, offset + n * size, size, field->value[n]);
896 }
897}
898
899/*
900 * Create a report.
901 */
902
903static void hid_output_report(struct hid_report *report, __u8 *data)
904{
905 unsigned n;
906
907 if (report->id > 0)
908 *data++ = report->id;
909
910 for (n = 0; n < report->maxfield; n++)
911 hid_output_field(report->field[n], data);
912}
913
914/*
915 * Set a field value. The report this field belongs to has to be
916 * created and transferred to the device, to set this value in the
917 * device.
918 */
919
920int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
921{
922 unsigned size = field->report_size;
923
924 hid_dump_input(field->usage + offset, value);
925
926 if (offset >= field->report_count) {
927 dbg("offset (%d) exceeds report_count (%d)", offset, field->report_count);
928 hid_dump_field(field, 8);
929 return -1;
930 }
931 if (field->logical_minimum < 0) {
932 if (value != snto32(s32ton(value, size), size)) {
933 dbg("value %d is out of range", value);
934 return -1;
935 }
936 }
937 field->value[offset] = value;
938 return 0;
939}
940
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
new file mode 100644
index 000000000000..d459005062e0
--- /dev/null
+++ b/drivers/hid/hid-input.c
@@ -0,0 +1,840 @@
1/*
2 * $Id: hid-input.c,v 1.2 2002/04/23 00:59:25 rdamazio Exp $
3 *
4 * Copyright (c) 2000-2001 Vojtech Pavlik
5 * Copyright (c) 2006 Jiri Kosina
6 *
7 * HID to Linux Input mapping
8 */
9
10/*
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 *
25 * Should you need to contact me, the author, you can do so either by
26 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
27 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
28 */
29
30#include <linux/module.h>
31#include <linux/slab.h>
32#include <linux/kernel.h>
33#include <linux/usb/input.h>
34
35#undef DEBUG
36
37#include <linux/hid.h>
38
39#define unk KEY_UNKNOWN
40
41static const unsigned char hid_keyboard[256] = {
42 0, 0, 0, 0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
43 50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44, 2, 3,
44 4, 5, 6, 7, 8, 9, 10, 11, 28, 1, 14, 15, 57, 12, 13, 26,
45 27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
46 65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
47 105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
48 72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190,
49 191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113,
50 115,114,unk,unk,unk,121,unk, 89, 93,124, 92, 94, 95,unk,unk,unk,
51 122,123, 90, 91, 85,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
52 unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
53 unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
54 unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
55 unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
56 29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
57 150,158,159,128,136,177,178,176,142,152,173,140,unk,unk,unk,unk
58};
59
60static const struct {
61 __s32 x;
62 __s32 y;
63} hid_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
64
65#define map_abs(c) do { usage->code = c; usage->type = EV_ABS; bit = input->absbit; max = ABS_MAX; } while (0)
66#define map_rel(c) do { usage->code = c; usage->type = EV_REL; bit = input->relbit; max = REL_MAX; } while (0)
67#define map_key(c) do { usage->code = c; usage->type = EV_KEY; bit = input->keybit; max = KEY_MAX; } while (0)
68#define map_led(c) do { usage->code = c; usage->type = EV_LED; bit = input->ledbit; max = LED_MAX; } while (0)
69
70#define map_abs_clear(c) do { map_abs(c); clear_bit(c, bit); } while (0)
71#define map_key_clear(c) do { map_key(c); clear_bit(c, bit); } while (0)
72
73#ifdef CONFIG_USB_HIDINPUT_POWERBOOK
74
75struct hidinput_key_translation {
76 u16 from;
77 u16 to;
78 u8 flags;
79};
80
81#define POWERBOOK_FLAG_FKEY 0x01
82
83static struct hidinput_key_translation powerbook_fn_keys[] = {
84 { KEY_BACKSPACE, KEY_DELETE },
85 { KEY_F1, KEY_BRIGHTNESSDOWN, POWERBOOK_FLAG_FKEY },
86 { KEY_F2, KEY_BRIGHTNESSUP, POWERBOOK_FLAG_FKEY },
87 { KEY_F3, KEY_MUTE, POWERBOOK_FLAG_FKEY },
88 { KEY_F4, KEY_VOLUMEDOWN, POWERBOOK_FLAG_FKEY },
89 { KEY_F5, KEY_VOLUMEUP, POWERBOOK_FLAG_FKEY },
90 { KEY_F6, KEY_NUMLOCK, POWERBOOK_FLAG_FKEY },
91 { KEY_F7, KEY_SWITCHVIDEOMODE, POWERBOOK_FLAG_FKEY },
92 { KEY_F8, KEY_KBDILLUMTOGGLE, POWERBOOK_FLAG_FKEY },
93 { KEY_F9, KEY_KBDILLUMDOWN, POWERBOOK_FLAG_FKEY },
94 { KEY_F10, KEY_KBDILLUMUP, POWERBOOK_FLAG_FKEY },
95 { KEY_UP, KEY_PAGEUP },
96 { KEY_DOWN, KEY_PAGEDOWN },
97 { KEY_LEFT, KEY_HOME },
98 { KEY_RIGHT, KEY_END },
99 { }
100};
101
102static struct hidinput_key_translation powerbook_numlock_keys[] = {
103 { KEY_J, KEY_KP1 },
104 { KEY_K, KEY_KP2 },
105 { KEY_L, KEY_KP3 },
106 { KEY_U, KEY_KP4 },
107 { KEY_I, KEY_KP5 },
108 { KEY_O, KEY_KP6 },
109 { KEY_7, KEY_KP7 },
110 { KEY_8, KEY_KP8 },
111 { KEY_9, KEY_KP9 },
112 { KEY_M, KEY_KP0 },
113 { KEY_DOT, KEY_KPDOT },
114 { KEY_SLASH, KEY_KPPLUS },
115 { KEY_SEMICOLON, KEY_KPMINUS },
116 { KEY_P, KEY_KPASTERISK },
117 { KEY_MINUS, KEY_KPEQUAL },
118 { KEY_0, KEY_KPSLASH },
119 { KEY_F6, KEY_NUMLOCK },
120 { KEY_KPENTER, KEY_KPENTER },
121 { KEY_BACKSPACE, KEY_BACKSPACE },
122 { }
123};
124
125static struct hidinput_key_translation powerbook_iso_keyboard[] = {
126 { KEY_GRAVE, KEY_102ND },
127 { KEY_102ND, KEY_GRAVE },
128 { }
129};
130
131
132static int usbhid_pb_fnmode = 1;
133module_param_named(pb_fnmode, usbhid_pb_fnmode, int, 0644);
134MODULE_PARM_DESC(pb_fnmode,
135 "Mode of fn key on PowerBooks (0 = disabled, 1 = fkeyslast, 2 = fkeysfirst)");
136
137static struct hidinput_key_translation *find_translation(struct hidinput_key_translation *table, u16 from)
138{
139 struct hidinput_key_translation *trans;
140
141 /* Look for the translation */
142 for (trans = table; trans->from; trans++)
143 if (trans->from == from)
144 return trans;
145
146 return NULL;
147}
148
149static int hidinput_pb_event(struct hid_device *hid, struct input_dev *input,
150 struct hid_usage *usage, __s32 value)
151{
152 struct hidinput_key_translation *trans;
153
154 if (usage->code == KEY_FN) {
155 if (value) hid->quirks |= HID_QUIRK_POWERBOOK_FN_ON;
156 else hid->quirks &= ~HID_QUIRK_POWERBOOK_FN_ON;
157
158 input_event(input, usage->type, usage->code, value);
159
160 return 1;
161 }
162
163 if (usbhid_pb_fnmode) {
164 int do_translate;
165
166 trans = find_translation(powerbook_fn_keys, usage->code);
167 if (trans) {
168 if (test_bit(usage->code, hid->pb_pressed_fn))
169 do_translate = 1;
170 else if (trans->flags & POWERBOOK_FLAG_FKEY)
171 do_translate =
172 (usbhid_pb_fnmode == 2 && (hid->quirks & HID_QUIRK_POWERBOOK_FN_ON)) ||
173 (usbhid_pb_fnmode == 1 && !(hid->quirks & HID_QUIRK_POWERBOOK_FN_ON));
174 else
175 do_translate = (hid->quirks & HID_QUIRK_POWERBOOK_FN_ON);
176
177 if (do_translate) {
178 if (value)
179 set_bit(usage->code, hid->pb_pressed_fn);
180 else
181 clear_bit(usage->code, hid->pb_pressed_fn);
182
183 input_event(input, usage->type, trans->to, value);
184
185 return 1;
186 }
187 }
188
189 if (test_bit(usage->code, hid->pb_pressed_numlock) ||
190 test_bit(LED_NUML, input->led)) {
191 trans = find_translation(powerbook_numlock_keys, usage->code);
192
193 if (trans) {
194 if (value)
195 set_bit(usage->code, hid->pb_pressed_numlock);
196 else
197 clear_bit(usage->code, hid->pb_pressed_numlock);
198
199 input_event(input, usage->type, trans->to, value);
200 }
201
202 return 1;
203 }
204 }
205
206 if (hid->quirks & HID_QUIRK_POWERBOOK_ISO_KEYBOARD) {
207 trans = find_translation(powerbook_iso_keyboard, usage->code);
208 if (trans) {
209 input_event(input, usage->type, trans->to, value);
210 return 1;
211 }
212 }
213
214 return 0;
215}
216
217static void hidinput_pb_setup(struct input_dev *input)
218{
219 struct hidinput_key_translation *trans;
220
221 set_bit(KEY_NUMLOCK, input->keybit);
222
223 /* Enable all needed keys */
224 for (trans = powerbook_fn_keys; trans->from; trans++)
225 set_bit(trans->to, input->keybit);
226
227 for (trans = powerbook_numlock_keys; trans->from; trans++)
228 set_bit(trans->to, input->keybit);
229
230 for (trans = powerbook_iso_keyboard; trans->from; trans++)
231 set_bit(trans->to, input->keybit);
232
233}
234#else
235static inline int hidinput_pb_event(struct hid_device *hid, struct input_dev *input,
236 struct hid_usage *usage, __s32 value)
237{
238 return 0;
239}
240
241static inline void hidinput_pb_setup(struct input_dev *input)
242{
243}
244#endif
245
246static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
247 struct hid_usage *usage)
248{
249 struct input_dev *input = hidinput->input;
250 struct hid_device *device = input->private;
251 int max = 0, code;
252 unsigned long *bit = NULL;
253
254 field->hidinput = hidinput;
255
256#ifdef DEBUG
257 printk(KERN_DEBUG "Mapping: ");
258 resolv_usage(usage->hid);
259 printk(" ---> ");
260#endif
261
262 if (field->flags & HID_MAIN_ITEM_CONSTANT)
263 goto ignore;
264
265 switch (usage->hid & HID_USAGE_PAGE) {
266
267 case HID_UP_UNDEFINED:
268 goto ignore;
269
270 case HID_UP_KEYBOARD:
271
272 set_bit(EV_REP, input->evbit);
273
274 if ((usage->hid & HID_USAGE) < 256) {
275 if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
276 map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
277 } else
278 map_key(KEY_UNKNOWN);
279
280 break;
281
282 case HID_UP_BUTTON:
283
284 code = ((usage->hid - 1) & 0xf);
285
286 switch (field->application) {
287 case HID_GD_MOUSE:
288 case HID_GD_POINTER: code += 0x110; break;
289 case HID_GD_JOYSTICK: code += 0x120; break;
290 case HID_GD_GAMEPAD: code += 0x130; break;
291 default:
292 switch (field->physical) {
293 case HID_GD_MOUSE:
294 case HID_GD_POINTER: code += 0x110; break;
295 case HID_GD_JOYSTICK: code += 0x120; break;
296 case HID_GD_GAMEPAD: code += 0x130; break;
297 default: code += 0x100;
298 }
299 }
300
301 map_key(code);
302 break;
303
304
305 case HID_UP_SIMULATION:
306
307 switch (usage->hid & 0xffff) {
308 case 0xba: map_abs(ABS_RUDDER); break;
309 case 0xbb: map_abs(ABS_THROTTLE); break;
310 case 0xc4: map_abs(ABS_GAS); break;
311 case 0xc5: map_abs(ABS_BRAKE); break;
312 case 0xc8: map_abs(ABS_WHEEL); break;
313 default: goto ignore;
314 }
315 break;
316
317 case HID_UP_GENDESK:
318
319 if ((usage->hid & 0xf0) == 0x80) { /* SystemControl */
320 switch (usage->hid & 0xf) {
321 case 0x1: map_key_clear(KEY_POWER); break;
322 case 0x2: map_key_clear(KEY_SLEEP); break;
323 case 0x3: map_key_clear(KEY_WAKEUP); break;
324 default: goto unknown;
325 }
326 break;
327 }
328
329 if ((usage->hid & 0xf0) == 0x90) { /* D-pad */
330 switch (usage->hid) {
331 case HID_GD_UP: usage->hat_dir = 1; break;
332 case HID_GD_DOWN: usage->hat_dir = 5; break;
333 case HID_GD_RIGHT: usage->hat_dir = 3; break;
334 case HID_GD_LEFT: usage->hat_dir = 7; break;
335 default: goto unknown;
336 }
337 if (field->dpad) {
338 map_abs(field->dpad);
339 goto ignore;
340 }
341 map_abs(ABS_HAT0X);
342 break;
343 }
344
345 switch (usage->hid) {
346
347 /* These usage IDs map directly to the usage codes. */
348 case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
349 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
350 case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL:
351 if (field->flags & HID_MAIN_ITEM_RELATIVE)
352 map_rel(usage->hid & 0xf);
353 else
354 map_abs(usage->hid & 0xf);
355 break;
356
357 case HID_GD_HATSWITCH:
358 usage->hat_min = field->logical_minimum;
359 usage->hat_max = field->logical_maximum;
360 map_abs(ABS_HAT0X);
361 break;
362
363 case HID_GD_START: map_key_clear(BTN_START); break;
364 case HID_GD_SELECT: map_key_clear(BTN_SELECT); break;
365
366 default: goto unknown;
367 }
368
369 break;
370
371 case HID_UP_LED:
372 if (((usage->hid - 1) & 0xffff) >= LED_MAX)
373 goto ignore;
374 map_led((usage->hid - 1) & 0xffff);
375 break;
376
377 case HID_UP_DIGITIZER:
378
379 switch (usage->hid & 0xff) {
380
381 case 0x30: /* TipPressure */
382 if (!test_bit(BTN_TOUCH, input->keybit)) {
383 device->quirks |= HID_QUIRK_NOTOUCH;
384 set_bit(EV_KEY, input->evbit);
385 set_bit(BTN_TOUCH, input->keybit);
386 }
387
388 map_abs_clear(ABS_PRESSURE);
389 break;
390
391 case 0x32: /* InRange */
392 switch (field->physical & 0xff) {
393 case 0x21: map_key(BTN_TOOL_MOUSE); break;
394 case 0x22: map_key(BTN_TOOL_FINGER); break;
395 default: map_key(BTN_TOOL_PEN); break;
396 }
397 break;
398
399 case 0x3c: /* Invert */
400 map_key_clear(BTN_TOOL_RUBBER);
401 break;
402
403 case 0x33: /* Touch */
404 case 0x42: /* TipSwitch */
405 case 0x43: /* TipSwitch2 */
406 device->quirks &= ~HID_QUIRK_NOTOUCH;
407 map_key_clear(BTN_TOUCH);
408 break;
409
410 case 0x44: /* BarrelSwitch */
411 map_key_clear(BTN_STYLUS);
412 break;
413
414 default: goto unknown;
415 }
416 break;
417
418 case HID_UP_CONSUMER: /* USB HUT v1.1, pages 56-62 */
419
420 switch (usage->hid & HID_USAGE) {
421 case 0x000: goto ignore;
422 case 0x034: map_key_clear(KEY_SLEEP); break;
423 case 0x036: map_key_clear(BTN_MISC); break;
424 case 0x045: map_key_clear(KEY_RADIO); break;
425 case 0x08a: map_key_clear(KEY_WWW); break;
426 case 0x08d: map_key_clear(KEY_PROGRAM); break;
427 case 0x095: map_key_clear(KEY_HELP); break;
428 case 0x09c: map_key_clear(KEY_CHANNELUP); break;
429 case 0x09d: map_key_clear(KEY_CHANNELDOWN); break;
430 case 0x0b0: map_key_clear(KEY_PLAY); break;
431 case 0x0b1: map_key_clear(KEY_PAUSE); break;
432 case 0x0b2: map_key_clear(KEY_RECORD); break;
433 case 0x0b3: map_key_clear(KEY_FASTFORWARD); break;
434 case 0x0b4: map_key_clear(KEY_REWIND); break;
435 case 0x0b5: map_key_clear(KEY_NEXTSONG); break;
436 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG); break;
437 case 0x0b7: map_key_clear(KEY_STOPCD); break;
438 case 0x0b8: map_key_clear(KEY_EJECTCD); break;
439 case 0x0cd: map_key_clear(KEY_PLAYPAUSE); break;
440 case 0x0e0: map_abs_clear(ABS_VOLUME); break;
441 case 0x0e2: map_key_clear(KEY_MUTE); break;
442 case 0x0e5: map_key_clear(KEY_BASSBOOST); break;
443 case 0x0e9: map_key_clear(KEY_VOLUMEUP); break;
444 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN); break;
445 case 0x183: map_key_clear(KEY_CONFIG); break;
446 case 0x18a: map_key_clear(KEY_MAIL); break;
447 case 0x192: map_key_clear(KEY_CALC); break;
448 case 0x194: map_key_clear(KEY_FILE); break;
449 case 0x1a7: map_key_clear(KEY_DOCUMENTS); break;
450 case 0x201: map_key_clear(KEY_NEW); break;
451 case 0x207: map_key_clear(KEY_SAVE); break;
452 case 0x208: map_key_clear(KEY_PRINT); break;
453 case 0x209: map_key_clear(KEY_PROPS); break;
454 case 0x21a: map_key_clear(KEY_UNDO); break;
455 case 0x21b: map_key_clear(KEY_COPY); break;
456 case 0x21c: map_key_clear(KEY_CUT); break;
457 case 0x21d: map_key_clear(KEY_PASTE); break;
458 case 0x221: map_key_clear(KEY_FIND); break;
459 case 0x223: map_key_clear(KEY_HOMEPAGE); break;
460 case 0x224: map_key_clear(KEY_BACK); break;
461 case 0x225: map_key_clear(KEY_FORWARD); break;
462 case 0x226: map_key_clear(KEY_STOP); break;
463 case 0x227: map_key_clear(KEY_REFRESH); break;
464 case 0x22a: map_key_clear(KEY_BOOKMARKS); break;
465 case 0x233: map_key_clear(KEY_SCROLLUP); break;
466 case 0x234: map_key_clear(KEY_SCROLLDOWN); break;
467 case 0x238: map_rel(REL_HWHEEL); break;
468 case 0x279: map_key_clear(KEY_REDO); break;
469 case 0x289: map_key_clear(KEY_REPLY); break;
470 case 0x28b: map_key_clear(KEY_FORWARDMAIL); break;
471 case 0x28c: map_key_clear(KEY_SEND); break;
472
473 /* Reported on a Cherry Cymotion keyboard */
474 case 0x301: map_key_clear(KEY_PROG1); break;
475 case 0x302: map_key_clear(KEY_PROG2); break;
476 case 0x303: map_key_clear(KEY_PROG3); break;
477
478 default: goto ignore;
479 }
480 break;
481
482 case HID_UP_HPVENDOR: /* Reported on a Dutch layout HP5308 */
483
484 set_bit(EV_REP, input->evbit);
485 switch (usage->hid & HID_USAGE) {
486 case 0x021: map_key_clear(KEY_PRINT); break;
487 case 0x070: map_key_clear(KEY_HP); break;
488 case 0x071: map_key_clear(KEY_CAMERA); break;
489 case 0x072: map_key_clear(KEY_SOUND); break;
490 case 0x073: map_key_clear(KEY_QUESTION); break;
491 case 0x080: map_key_clear(KEY_EMAIL); break;
492 case 0x081: map_key_clear(KEY_CHAT); break;
493 case 0x082: map_key_clear(KEY_SEARCH); break;
494 case 0x083: map_key_clear(KEY_CONNECT); break;
495 case 0x084: map_key_clear(KEY_FINANCE); break;
496 case 0x085: map_key_clear(KEY_SPORT); break;
497 case 0x086: map_key_clear(KEY_SHOP); break;
498 default: goto ignore;
499 }
500 break;
501
502 case HID_UP_MSVENDOR:
503 goto ignore;
504
505 case HID_UP_CUSTOM: /* Reported on Logitech and Powerbook USB keyboards */
506
507 set_bit(EV_REP, input->evbit);
508 switch(usage->hid & HID_USAGE) {
509 case 0x003:
510 /* The fn key on Apple PowerBooks */
511 map_key_clear(KEY_FN);
512 hidinput_pb_setup(input);
513 break;
514
515 default: goto ignore;
516 }
517 break;
518
519 case HID_UP_LOGIVENDOR: /* Reported on Logitech Ultra X Media Remote */
520
521 set_bit(EV_REP, input->evbit);
522 switch(usage->hid & HID_USAGE) {
523 case 0x004: map_key_clear(KEY_AGAIN); break;
524 case 0x00d: map_key_clear(KEY_HOME); break;
525 case 0x024: map_key_clear(KEY_SHUFFLE); break;
526 case 0x025: map_key_clear(KEY_TV); break;
527 case 0x026: map_key_clear(KEY_MENU); break;
528 case 0x031: map_key_clear(KEY_AUDIO); break;
529 case 0x032: map_key_clear(KEY_TEXT); break;
530 case 0x033: map_key_clear(KEY_LAST); break;
531 case 0x047: map_key_clear(KEY_MP3); break;
532 case 0x048: map_key_clear(KEY_DVD); break;
533 case 0x049: map_key_clear(KEY_MEDIA); break;
534 case 0x04a: map_key_clear(KEY_VIDEO); break;
535 case 0x04b: map_key_clear(KEY_ANGLE); break;
536 case 0x04c: map_key_clear(KEY_LANGUAGE); break;
537 case 0x04d: map_key_clear(KEY_SUBTITLE); break;
538 case 0x051: map_key_clear(KEY_RED); break;
539 case 0x052: map_key_clear(KEY_CLOSE); break;
540 default: goto ignore;
541 }
542 break;
543
544 case HID_UP_PID:
545
546 switch(usage->hid & HID_USAGE) {
547 case 0xa4: map_key_clear(BTN_DEAD); break;
548 default: goto ignore;
549 }
550 break;
551
552 default:
553 unknown:
554 if (field->report_size == 1) {
555 if (field->report->type == HID_OUTPUT_REPORT) {
556 map_led(LED_MISC);
557 break;
558 }
559 map_key(BTN_MISC);
560 break;
561 }
562 if (field->flags & HID_MAIN_ITEM_RELATIVE) {
563 map_rel(REL_MISC);
564 break;
565 }
566 map_abs(ABS_MISC);
567 break;
568 }
569
570 if (device->quirks & HID_QUIRK_MIGHTYMOUSE) {
571 if (usage->hid == HID_GD_Z)
572 map_rel(REL_HWHEEL);
573 else if (usage->code == BTN_1)
574 map_key(BTN_2);
575 else if (usage->code == BTN_2)
576 map_key(BTN_1);
577 }
578
579 if ((device->quirks & (HID_QUIRK_2WHEEL_MOUSE_HACK_7 | HID_QUIRK_2WHEEL_MOUSE_HACK_5)) &&
580 (usage->type == EV_REL) && (usage->code == REL_WHEEL))
581 set_bit(REL_HWHEEL, bit);
582
583 if (((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_5) && (usage->hid == 0x00090005))
584 || ((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_7) && (usage->hid == 0x00090007)))
585 goto ignore;
586
587 if ((device->quirks & HID_QUIRK_BAD_RELATIVE_KEYS) &&
588 usage->type == EV_KEY && (field->flags & HID_MAIN_ITEM_RELATIVE))
589 field->flags &= ~HID_MAIN_ITEM_RELATIVE;
590
591 set_bit(usage->type, input->evbit);
592
593 while (usage->code <= max && test_and_set_bit(usage->code, bit))
594 usage->code = find_next_zero_bit(bit, max + 1, usage->code);
595
596 if (usage->code > max)
597 goto ignore;
598
599
600 if (usage->type == EV_ABS) {
601
602 int a = field->logical_minimum;
603 int b = field->logical_maximum;
604
605 if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
606 a = field->logical_minimum = 0;
607 b = field->logical_maximum = 255;
608 }
609
610 if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
611 input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
612 else input_set_abs_params(input, usage->code, a, b, 0, 0);
613
614 }
615
616 if (usage->type == EV_ABS &&
617 (usage->hat_min < usage->hat_max || usage->hat_dir)) {
618 int i;
619 for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
620 input_set_abs_params(input, i, -1, 1, 0, 0);
621 set_bit(i, input->absbit);
622 }
623 if (usage->hat_dir && !field->dpad)
624 field->dpad = usage->code;
625 }
626
627#ifdef DEBUG
628 resolv_event(usage->type, usage->code);
629 printk("\n");
630#endif
631 return;
632
633ignore:
634#ifdef DEBUG
635 printk("IGNORED\n");
636#endif
637 return;
638}
639
640void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
641{
642 struct input_dev *input;
643 int *quirks = &hid->quirks;
644
645 if (!field->hidinput)
646 return;
647
648 input = field->hidinput->input;
649
650 if (!usage->type)
651 return;
652
653 if (((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_5) && (usage->hid == 0x00090005))
654 || ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_7) && (usage->hid == 0x00090007))) {
655 if (value) hid->quirks |= HID_QUIRK_2WHEEL_MOUSE_HACK_ON;
656 else hid->quirks &= ~HID_QUIRK_2WHEEL_MOUSE_HACK_ON;
657 return;
658 }
659
660 if ((hid->quirks & HID_QUIRK_INVERT_HWHEEL) && (usage->code == REL_HWHEEL)) {
661 input_event(input, usage->type, usage->code, -value);
662 return;
663 }
664
665 if ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_ON) && (usage->code == REL_WHEEL)) {
666 input_event(input, usage->type, REL_HWHEEL, value);
667 return;
668 }
669
670 if ((hid->quirks & HID_QUIRK_POWERBOOK_HAS_FN) && hidinput_pb_event(hid, input, usage, value))
671 return;
672
673 if (usage->hat_min < usage->hat_max || usage->hat_dir) {
674 int hat_dir = usage->hat_dir;
675 if (!hat_dir)
676 hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
677 if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
678 input_event(input, usage->type, usage->code , hid_hat_to_axis[hat_dir].x);
679 input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
680 return;
681 }
682
683 if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */
684 *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
685 return;
686 }
687
688 if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */
689 if (value) {
690 input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
691 return;
692 }
693 input_event(input, usage->type, usage->code, 0);
694 input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
695 return;
696 }
697
698 if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */
699 int a = field->logical_minimum;
700 int b = field->logical_maximum;
701 input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3));
702 }
703
704 if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
705 dbg("Maximum Effects - %d",value);
706 return;
707 }
708
709 if (usage->hid == (HID_UP_PID | 0x7fUL)) {
710 dbg("PID Pool Report\n");
711 return;
712 }
713
714 if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
715 return;
716
717 input_event(input, usage->type, usage->code, value);
718
719 if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY))
720 input_event(input, usage->type, usage->code, 0);
721}
722
723void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
724{
725 struct hid_input *hidinput;
726
727 list_for_each_entry(hidinput, &hid->inputs, list)
728 input_sync(hidinput->input);
729}
730
731static int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
732{
733 struct hid_report *report;
734 int i, j;
735
736 list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
737 for (i = 0; i < report->maxfield; i++) {
738 *field = report->field[i];
739 for (j = 0; j < (*field)->maxusage; j++)
740 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
741 return j;
742 }
743 }
744 return -1;
745}
746
747/*
748 * Register the input device; print a message.
749 * Configure the input layer interface
750 * Read all reports and initialize the absolute field values.
751 */
752
753int hidinput_connect(struct hid_device *hid)
754{
755 struct usb_device *dev = hid->dev;
756 struct hid_report *report;
757 struct hid_input *hidinput = NULL;
758 struct input_dev *input_dev;
759 int i, j, k;
760
761 INIT_LIST_HEAD(&hid->inputs);
762
763 for (i = 0; i < hid->maxcollection; i++)
764 if (hid->collection[i].type == HID_COLLECTION_APPLICATION ||
765 hid->collection[i].type == HID_COLLECTION_PHYSICAL)
766 if (IS_INPUT_APPLICATION(hid->collection[i].usage))
767 break;
768
769 if (i == hid->maxcollection)
770 return -1;
771
772 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++)
773 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
774
775 if (!report->maxfield)
776 continue;
777
778 if (!hidinput) {
779 hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
780 input_dev = input_allocate_device();
781 if (!hidinput || !input_dev) {
782 kfree(hidinput);
783 input_free_device(input_dev);
784 err("Out of memory during hid input probe");
785 return -1;
786 }
787
788 input_dev->private = hid;
789 input_dev->event = hidinput_input_event;
790 input_dev->open = hidinput_open;
791 input_dev->close = hidinput_close;
792
793 input_dev->name = hid->name;
794 input_dev->phys = hid->phys;
795 input_dev->uniq = hid->uniq;
796 usb_to_input_id(dev, &input_dev->id);
797 input_dev->cdev.dev = &hid->intf->dev;
798
799 hidinput->input = input_dev;
800 list_add_tail(&hidinput->list, &hid->inputs);
801 }
802
803 for (i = 0; i < report->maxfield; i++)
804 for (j = 0; j < report->field[i]->maxusage; j++)
805 hidinput_configure_usage(hidinput, report->field[i],
806 report->field[i]->usage + j);
807
808 if (hid->quirks & HID_QUIRK_MULTI_INPUT) {
809 /* This will leave hidinput NULL, so that it
810 * allocates another one if we have more inputs on
811 * the same interface. Some devices (e.g. Happ's
812 * UGCI) cram a lot of unrelated inputs into the
813 * same interface. */
814 hidinput->report = report;
815 input_register_device(hidinput->input);
816 hidinput = NULL;
817 }
818 }
819
820 /* This only gets called when we are a single-input (most of the
821 * time). IOW, not a HID_QUIRK_MULTI_INPUT. The hid_ff_init() is
822 * only useful in this case, and not for multi-input quirks. */
823 if (hidinput) {
824 hid_ff_init(hid);
825 input_register_device(hidinput->input);
826 }
827
828 return 0;
829}
830
831void hidinput_disconnect(struct hid_device *hid)
832{
833 struct hid_input *hidinput, *next;
834
835 list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
836 list_del(&hidinput->list);
837 input_unregister_device(hidinput->input);
838 kfree(hidinput);
839 }
840}
diff --git a/drivers/usb/input/hid-core.c b/drivers/usb/input/hid-core.c
index 0811c39bd14f..06e169b6a17e 100644
--- a/drivers/usb/input/hid-core.c
+++ b/drivers/usb/input/hid-core.c
@@ -4,6 +4,7 @@
4 * Copyright (c) 1999 Andreas Gal 4 * Copyright (c) 1999 Andreas Gal
5 * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz> 5 * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
6 * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc 6 * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
7 * Copyright (c) 2006 Jiri Kosina
7 */ 8 */
8 9
9/* 10/*
@@ -32,7 +33,7 @@
32 33
33#include <linux/usb.h> 34#include <linux/usb.h>
34 35
35#include "hid.h" 36#include <linux/hid.h>
36#include <linux/hiddev.h> 37#include <linux/hiddev.h>
37 38
38/* 39/*
@@ -55,887 +56,6 @@ module_param_named(mousepoll, hid_mousepoll_interval, uint, 0644);
55MODULE_PARM_DESC(mousepoll, "Polling interval of mice"); 56MODULE_PARM_DESC(mousepoll, "Polling interval of mice");
56 57
57/* 58/*
58 * Register a new report for a device.
59 */
60
61static struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
62{
63 struct hid_report_enum *report_enum = device->report_enum + type;
64 struct hid_report *report;
65
66 if (report_enum->report_id_hash[id])
67 return report_enum->report_id_hash[id];
68
69 if (!(report = kzalloc(sizeof(struct hid_report), GFP_KERNEL)))
70 return NULL;
71
72 if (id != 0)
73 report_enum->numbered = 1;
74
75 report->id = id;
76 report->type = type;
77 report->size = 0;
78 report->device = device;
79 report_enum->report_id_hash[id] = report;
80
81 list_add_tail(&report->list, &report_enum->report_list);
82
83 return report;
84}
85
86/*
87 * Register a new field for this report.
88 */
89
90static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values)
91{
92 struct hid_field *field;
93
94 if (report->maxfield == HID_MAX_FIELDS) {
95 dbg("too many fields in report");
96 return NULL;
97 }
98
99 if (!(field = kzalloc(sizeof(struct hid_field) + usages * sizeof(struct hid_usage)
100 + values * sizeof(unsigned), GFP_KERNEL))) return NULL;
101
102 field->index = report->maxfield++;
103 report->field[field->index] = field;
104 field->usage = (struct hid_usage *)(field + 1);
105 field->value = (unsigned *)(field->usage + usages);
106 field->report = report;
107
108 return field;
109}
110
111/*
112 * Open a collection. The type/usage is pushed on the stack.
113 */
114
115static int open_collection(struct hid_parser *parser, unsigned type)
116{
117 struct hid_collection *collection;
118 unsigned usage;
119
120 usage = parser->local.usage[0];
121
122 if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) {
123 dbg("collection stack overflow");
124 return -1;
125 }
126
127 if (parser->device->maxcollection == parser->device->collection_size) {
128 collection = kmalloc(sizeof(struct hid_collection) *
129 parser->device->collection_size * 2, GFP_KERNEL);
130 if (collection == NULL) {
131 dbg("failed to reallocate collection array");
132 return -1;
133 }
134 memcpy(collection, parser->device->collection,
135 sizeof(struct hid_collection) *
136 parser->device->collection_size);
137 memset(collection + parser->device->collection_size, 0,
138 sizeof(struct hid_collection) *
139 parser->device->collection_size);
140 kfree(parser->device->collection);
141 parser->device->collection = collection;
142 parser->device->collection_size *= 2;
143 }
144
145 parser->collection_stack[parser->collection_stack_ptr++] =
146 parser->device->maxcollection;
147
148 collection = parser->device->collection +
149 parser->device->maxcollection++;
150 collection->type = type;
151 collection->usage = usage;
152 collection->level = parser->collection_stack_ptr - 1;
153
154 if (type == HID_COLLECTION_APPLICATION)
155 parser->device->maxapplication++;
156
157 return 0;
158}
159
160/*
161 * Close a collection.
162 */
163
164static int close_collection(struct hid_parser *parser)
165{
166 if (!parser->collection_stack_ptr) {
167 dbg("collection stack underflow");
168 return -1;
169 }
170 parser->collection_stack_ptr--;
171 return 0;
172}
173
174/*
175 * Climb up the stack, search for the specified collection type
176 * and return the usage.
177 */
178
179static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type)
180{
181 int n;
182 for (n = parser->collection_stack_ptr - 1; n >= 0; n--)
183 if (parser->device->collection[parser->collection_stack[n]].type == type)
184 return parser->device->collection[parser->collection_stack[n]].usage;
185 return 0; /* we know nothing about this usage type */
186}
187
188/*
189 * Add a usage to the temporary parser table.
190 */
191
192static int hid_add_usage(struct hid_parser *parser, unsigned usage)
193{
194 if (parser->local.usage_index >= HID_MAX_USAGES) {
195 dbg("usage index exceeded");
196 return -1;
197 }
198 parser->local.usage[parser->local.usage_index] = usage;
199 parser->local.collection_index[parser->local.usage_index] =
200 parser->collection_stack_ptr ?
201 parser->collection_stack[parser->collection_stack_ptr - 1] : 0;
202 parser->local.usage_index++;
203 return 0;
204}
205
206/*
207 * Register a new field for this report.
208 */
209
210static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags)
211{
212 struct hid_report *report;
213 struct hid_field *field;
214 int usages;
215 unsigned offset;
216 int i;
217
218 if (!(report = hid_register_report(parser->device, report_type, parser->global.report_id))) {
219 dbg("hid_register_report failed");
220 return -1;
221 }
222
223 if (parser->global.logical_maximum < parser->global.logical_minimum) {
224 dbg("logical range invalid %d %d", parser->global.logical_minimum, parser->global.logical_maximum);
225 return -1;
226 }
227
228 offset = report->size;
229 report->size += parser->global.report_size * parser->global.report_count;
230
231 if (!parser->local.usage_index) /* Ignore padding fields */
232 return 0;
233
234 usages = max_t(int, parser->local.usage_index, parser->global.report_count);
235
236 if ((field = hid_register_field(report, usages, parser->global.report_count)) == NULL)
237 return 0;
238
239 field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
240 field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
241 field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
242
243 for (i = 0; i < usages; i++) {
244 int j = i;
245 /* Duplicate the last usage we parsed if we have excess values */
246 if (i >= parser->local.usage_index)
247 j = parser->local.usage_index - 1;
248 field->usage[i].hid = parser->local.usage[j];
249 field->usage[i].collection_index =
250 parser->local.collection_index[j];
251 }
252
253 field->maxusage = usages;
254 field->flags = flags;
255 field->report_offset = offset;
256 field->report_type = report_type;
257 field->report_size = parser->global.report_size;
258 field->report_count = parser->global.report_count;
259 field->logical_minimum = parser->global.logical_minimum;
260 field->logical_maximum = parser->global.logical_maximum;
261 field->physical_minimum = parser->global.physical_minimum;
262 field->physical_maximum = parser->global.physical_maximum;
263 field->unit_exponent = parser->global.unit_exponent;
264 field->unit = parser->global.unit;
265
266 return 0;
267}
268
269/*
270 * Read data value from item.
271 */
272
273static u32 item_udata(struct hid_item *item)
274{
275 switch (item->size) {
276 case 1: return item->data.u8;
277 case 2: return item->data.u16;
278 case 4: return item->data.u32;
279 }
280 return 0;
281}
282
283static s32 item_sdata(struct hid_item *item)
284{
285 switch (item->size) {
286 case 1: return item->data.s8;
287 case 2: return item->data.s16;
288 case 4: return item->data.s32;
289 }
290 return 0;
291}
292
293/*
294 * Process a global item.
295 */
296
297static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
298{
299 switch (item->tag) {
300
301 case HID_GLOBAL_ITEM_TAG_PUSH:
302
303 if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
304 dbg("global enviroment stack overflow");
305 return -1;
306 }
307
308 memcpy(parser->global_stack + parser->global_stack_ptr++,
309 &parser->global, sizeof(struct hid_global));
310 return 0;
311
312 case HID_GLOBAL_ITEM_TAG_POP:
313
314 if (!parser->global_stack_ptr) {
315 dbg("global enviroment stack underflow");
316 return -1;
317 }
318
319 memcpy(&parser->global, parser->global_stack + --parser->global_stack_ptr,
320 sizeof(struct hid_global));
321 return 0;
322
323 case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
324 parser->global.usage_page = item_udata(item);
325 return 0;
326
327 case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
328 parser->global.logical_minimum = item_sdata(item);
329 return 0;
330
331 case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
332 if (parser->global.logical_minimum < 0)
333 parser->global.logical_maximum = item_sdata(item);
334 else
335 parser->global.logical_maximum = item_udata(item);
336 return 0;
337
338 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
339 parser->global.physical_minimum = item_sdata(item);
340 return 0;
341
342 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
343 if (parser->global.physical_minimum < 0)
344 parser->global.physical_maximum = item_sdata(item);
345 else
346 parser->global.physical_maximum = item_udata(item);
347 return 0;
348
349 case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
350 parser->global.unit_exponent = item_sdata(item);
351 return 0;
352
353 case HID_GLOBAL_ITEM_TAG_UNIT:
354 parser->global.unit = item_udata(item);
355 return 0;
356
357 case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
358 if ((parser->global.report_size = item_udata(item)) > 32) {
359 dbg("invalid report_size %d", parser->global.report_size);
360 return -1;
361 }
362 return 0;
363
364 case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
365 if ((parser->global.report_count = item_udata(item)) > HID_MAX_USAGES) {
366 dbg("invalid report_count %d", parser->global.report_count);
367 return -1;
368 }
369 return 0;
370
371 case HID_GLOBAL_ITEM_TAG_REPORT_ID:
372 if ((parser->global.report_id = item_udata(item)) == 0) {
373 dbg("report_id 0 is invalid");
374 return -1;
375 }
376 return 0;
377
378 default:
379 dbg("unknown global tag 0x%x", item->tag);
380 return -1;
381 }
382}
383
384/*
385 * Process a local item.
386 */
387
388static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
389{
390 __u32 data;
391 unsigned n;
392
393 if (item->size == 0) {
394 dbg("item data expected for local item");
395 return -1;
396 }
397
398 data = item_udata(item);
399
400 switch (item->tag) {
401
402 case HID_LOCAL_ITEM_TAG_DELIMITER:
403
404 if (data) {
405 /*
406 * We treat items before the first delimiter
407 * as global to all usage sets (branch 0).
408 * In the moment we process only these global
409 * items and the first delimiter set.
410 */
411 if (parser->local.delimiter_depth != 0) {
412 dbg("nested delimiters");
413 return -1;
414 }
415 parser->local.delimiter_depth++;
416 parser->local.delimiter_branch++;
417 } else {
418 if (parser->local.delimiter_depth < 1) {
419 dbg("bogus close delimiter");
420 return -1;
421 }
422 parser->local.delimiter_depth--;
423 }
424 return 1;
425
426 case HID_LOCAL_ITEM_TAG_USAGE:
427
428 if (parser->local.delimiter_branch > 1) {
429 dbg("alternative usage ignored");
430 return 0;
431 }
432
433 if (item->size <= 2)
434 data = (parser->global.usage_page << 16) + data;
435
436 return hid_add_usage(parser, data);
437
438 case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
439
440 if (parser->local.delimiter_branch > 1) {
441 dbg("alternative usage ignored");
442 return 0;
443 }
444
445 if (item->size <= 2)
446 data = (parser->global.usage_page << 16) + data;
447
448 parser->local.usage_minimum = data;
449 return 0;
450
451 case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
452
453 if (parser->local.delimiter_branch > 1) {
454 dbg("alternative usage ignored");
455 return 0;
456 }
457
458 if (item->size <= 2)
459 data = (parser->global.usage_page << 16) + data;
460
461 for (n = parser->local.usage_minimum; n <= data; n++)
462 if (hid_add_usage(parser, n)) {
463 dbg("hid_add_usage failed\n");
464 return -1;
465 }
466 return 0;
467
468 default:
469
470 dbg("unknown local item tag 0x%x", item->tag);
471 return 0;
472 }
473 return 0;
474}
475
476/*
477 * Process a main item.
478 */
479
480static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
481{
482 __u32 data;
483 int ret;
484
485 data = item_udata(item);
486
487 switch (item->tag) {
488 case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
489 ret = open_collection(parser, data & 0xff);
490 break;
491 case HID_MAIN_ITEM_TAG_END_COLLECTION:
492 ret = close_collection(parser);
493 break;
494 case HID_MAIN_ITEM_TAG_INPUT:
495 ret = hid_add_field(parser, HID_INPUT_REPORT, data);
496 break;
497 case HID_MAIN_ITEM_TAG_OUTPUT:
498 ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
499 break;
500 case HID_MAIN_ITEM_TAG_FEATURE:
501 ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
502 break;
503 default:
504 dbg("unknown main item tag 0x%x", item->tag);
505 ret = 0;
506 }
507
508 memset(&parser->local, 0, sizeof(parser->local)); /* Reset the local parser environment */
509
510 return ret;
511}
512
513/*
514 * Process a reserved item.
515 */
516
517static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
518{
519 dbg("reserved item type, tag 0x%x", item->tag);
520 return 0;
521}
522
523/*
524 * Free a report and all registered fields. The field->usage and
525 * field->value table's are allocated behind the field, so we need
526 * only to free(field) itself.
527 */
528
529static void hid_free_report(struct hid_report *report)
530{
531 unsigned n;
532
533 for (n = 0; n < report->maxfield; n++)
534 kfree(report->field[n]);
535 kfree(report);
536}
537
538/*
539 * Free a device structure, all reports, and all fields.
540 */
541
542static void hid_free_device(struct hid_device *device)
543{
544 unsigned i,j;
545
546 for (i = 0; i < HID_REPORT_TYPES; i++) {
547 struct hid_report_enum *report_enum = device->report_enum + i;
548
549 for (j = 0; j < 256; j++) {
550 struct hid_report *report = report_enum->report_id_hash[j];
551 if (report)
552 hid_free_report(report);
553 }
554 }
555
556 kfree(device->rdesc);
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) {
599
600 case 0:
601 return start;
602
603 case 1:
604 if ((end - start) < 1)
605 return NULL;
606 item->data.u8 = *start++;
607 return start;
608
609 case 2:
610 if ((end - start) < 2)
611 return NULL;
612 item->data.u16 = le16_to_cpu(get_unaligned((__le16*)start));
613 start = (__u8 *)((__le16 *)start + 1);
614 return start;
615
616 case 3:
617 item->size++;
618 if ((end - start) < 4)
619 return NULL;
620 item->data.u32 = le32_to_cpu(get_unaligned((__le32*)start));
621 start = (__u8 *)((__le32 *)start + 1);
622 return start;
623 }
624
625 return NULL;
626}
627
628/*
629 * Parse a report description into a hid_device structure. Reports are
630 * enumerated, fields are attached to these reports.
631 */
632
633static struct hid_device *hid_parse_report(__u8 *start, unsigned size)
634{
635 struct hid_device *device;
636 struct hid_parser *parser;
637 struct hid_item item;
638 __u8 *end;
639 unsigned i;
640 static int (*dispatch_type[])(struct hid_parser *parser,
641 struct hid_item *item) = {
642 hid_parser_main,
643 hid_parser_global,
644 hid_parser_local,
645 hid_parser_reserved
646 };
647
648 if (!(device = kzalloc(sizeof(struct hid_device), GFP_KERNEL)))
649 return NULL;
650
651 if (!(device->collection = kzalloc(sizeof(struct hid_collection) *
652 HID_DEFAULT_NUM_COLLECTIONS, GFP_KERNEL))) {
653 kfree(device);
654 return NULL;
655 }
656 device->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
657
658 for (i = 0; i < HID_REPORT_TYPES; i++)
659 INIT_LIST_HEAD(&device->report_enum[i].report_list);
660
661 if (!(device->rdesc = (__u8 *)kmalloc(size, GFP_KERNEL))) {
662 kfree(device->collection);
663 kfree(device);
664 return NULL;
665 }
666 memcpy(device->rdesc, start, size);
667 device->rsize = size;
668
669 if (!(parser = kzalloc(sizeof(struct hid_parser), GFP_KERNEL))) {
670 kfree(device->rdesc);
671 kfree(device->collection);
672 kfree(device);
673 return NULL;
674 }
675 parser->device = device;
676
677 end = start + size;
678 while ((start = fetch_item(start, end, &item)) != NULL) {
679
680 if (item.format != HID_ITEM_FORMAT_SHORT) {
681 dbg("unexpected long global item");
682 kfree(device->collection);
683 hid_free_device(device);
684 kfree(parser);
685 return NULL;
686 }
687
688 if (dispatch_type[item.type](parser, &item)) {
689 dbg("item %u %u %u %u parsing failed\n",
690 item.format, (unsigned)item.size, (unsigned)item.type, (unsigned)item.tag);
691 kfree(device->collection);
692 hid_free_device(device);
693 kfree(parser);
694 return NULL;
695 }
696
697 if (start == end) {
698 if (parser->collection_stack_ptr) {
699 dbg("unbalanced collection at end of report description");
700 kfree(device->collection);
701 hid_free_device(device);
702 kfree(parser);
703 return NULL;
704 }
705 if (parser->local.delimiter_depth) {
706 dbg("unbalanced delimiter at end of report description");
707 kfree(device->collection);
708 hid_free_device(device);
709 kfree(parser);
710 return NULL;
711 }
712 kfree(parser);
713 return device;
714 }
715 }
716
717 dbg("item fetching failed at offset %d\n", (int)(end - start));
718 kfree(device->collection);
719 hid_free_device(device);
720 kfree(parser);
721 return NULL;
722}
723
724/*
725 * Convert a signed n-bit integer to signed 32-bit integer. Common
726 * cases are done through the compiler, the screwed things has to be
727 * done by hand.
728 */
729
730static s32 snto32(__u32 value, unsigned n)
731{
732 switch (n) {
733 case 8: return ((__s8)value);
734 case 16: return ((__s16)value);
735 case 32: return ((__s32)value);
736 }
737 return value & (1 << (n - 1)) ? value | (-1 << n) : value;
738}
739
740/*
741 * Convert a signed 32-bit integer to a signed n-bit integer.
742 */
743
744static u32 s32ton(__s32 value, unsigned n)
745{
746 s32 a = value >> (n - 1);
747 if (a && a != -1)
748 return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
749 return value & ((1 << n) - 1);
750}
751
752/*
753 * Extract/implement a data field from/to a little endian report (bit array).
754 *
755 * Code sort-of follows HID spec:
756 * http://www.usb.org/developers/devclass_docs/HID1_11.pdf
757 *
758 * While the USB HID spec allows unlimited length bit fields in "report
759 * descriptors", most devices never use more than 16 bits.
760 * One model of UPS is claimed to report "LINEV" as a 32-bit field.
761 * Search linux-kernel and linux-usb-devel archives for "hid-core extract".
762 */
763
764static __inline__ __u32 extract(__u8 *report, unsigned offset, unsigned n)
765{
766 u64 x;
767
768 WARN_ON(n > 32);
769
770 report += offset >> 3; /* adjust byte index */
771 offset &= 7; /* now only need bit offset into one byte */
772 x = get_unaligned((u64 *) report);
773 x = le64_to_cpu(x);
774 x = (x >> offset) & ((1ULL << n) - 1); /* extract bit field */
775 return (u32) x;
776}
777
778/*
779 * "implement" : set bits in a little endian bit stream.
780 * Same concepts as "extract" (see comments above).
781 * The data mangled in the bit stream remains in little endian
782 * order the whole time. It make more sense to talk about
783 * endianness of register values by considering a register
784 * a "cached" copy of the little endiad bit stream.
785 */
786static __inline__ void implement(__u8 *report, unsigned offset, unsigned n, __u32 value)
787{
788 u64 x;
789 u64 m = (1ULL << n) - 1;
790
791 WARN_ON(n > 32);
792
793 WARN_ON(value > m);
794 value &= m;
795
796 report += offset >> 3;
797 offset &= 7;
798
799 x = get_unaligned((u64 *)report);
800 x &= cpu_to_le64(~(m << offset));
801 x |= cpu_to_le64(((u64) value) << offset);
802 put_unaligned(x, (u64 *) report);
803}
804
805/*
806 * Search an array for a value.
807 */
808
809static __inline__ int search(__s32 *array, __s32 value, unsigned n)
810{
811 while (n--) {
812 if (*array++ == value)
813 return 0;
814 }
815 return -1;
816}
817
818static void hid_process_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value, int interrupt)
819{
820 hid_dump_input(usage, value);
821 if (hid->claimed & HID_CLAIMED_INPUT)
822 hidinput_hid_event(hid, field, usage, value);
823 if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt)
824 hiddev_hid_event(hid, field, usage, value);
825}
826
827/*
828 * Analyse a received field, and fetch the data from it. The field
829 * content is stored for next report processing (we do differential
830 * reporting to the layer).
831 */
832
833static void hid_input_field(struct hid_device *hid, struct hid_field *field, __u8 *data, int interrupt)
834{
835 unsigned n;
836 unsigned count = field->report_count;
837 unsigned offset = field->report_offset;
838 unsigned size = field->report_size;
839 __s32 min = field->logical_minimum;
840 __s32 max = field->logical_maximum;
841 __s32 *value;
842
843 if (!(value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC)))
844 return;
845
846 for (n = 0; n < count; n++) {
847
848 value[n] = min < 0 ? snto32(extract(data, offset + n * size, size), size) :
849 extract(data, offset + n * size, size);
850
851 if (!(field->flags & HID_MAIN_ITEM_VARIABLE) /* Ignore report if ErrorRollOver */
852 && value[n] >= min && value[n] <= max
853 && field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
854 goto exit;
855 }
856
857 for (n = 0; n < count; n++) {
858
859 if (HID_MAIN_ITEM_VARIABLE & field->flags) {
860 hid_process_event(hid, field, &field->usage[n], value[n], interrupt);
861 continue;
862 }
863
864 if (field->value[n] >= min && field->value[n] <= max
865 && field->usage[field->value[n] - min].hid
866 && search(value, field->value[n], count))
867 hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt);
868
869 if (value[n] >= min && value[n] <= max
870 && field->usage[value[n] - min].hid
871 && search(field->value, value[n], count))
872 hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt);
873 }
874
875 memcpy(field->value, value, count * sizeof(__s32));
876exit:
877 kfree(value);
878}
879
880static int hid_input_report(int type, struct urb *urb, int interrupt)
881{
882 struct hid_device *hid = urb->context;
883 struct hid_report_enum *report_enum = hid->report_enum + type;
884 u8 *data = urb->transfer_buffer;
885 int len = urb->actual_length;
886 struct hid_report *report;
887 int n, size;
888
889 if (!len) {
890 dbg("empty report");
891 return -1;
892 }
893
894#ifdef DEBUG_DATA
895 printk(KERN_DEBUG __FILE__ ": report (size %u) (%snumbered)\n", len, report_enum->numbered ? "" : "un");
896#endif
897
898 n = 0; /* Normally report number is 0 */
899 if (report_enum->numbered) { /* Device uses numbered reports, data[0] is report number */
900 n = *data++;
901 len--;
902 }
903
904#ifdef DEBUG_DATA
905 {
906 int i;
907 printk(KERN_DEBUG __FILE__ ": report %d (size %u) = ", n, len);
908 for (i = 0; i < len; i++)
909 printk(" %02x", data[i]);
910 printk("\n");
911 }
912#endif
913
914 if (!(report = report_enum->report_id_hash[n])) {
915 dbg("undefined report_id %d received", n);
916 return -1;
917 }
918
919 size = ((report->size - 1) >> 3) + 1;
920
921 if (len < size) {
922 dbg("report %d is too short, (%d < %d)", report->id, len, size);
923 memset(data + len, 0, size - len);
924 }
925
926 if (hid->claimed & HID_CLAIMED_HIDDEV)
927 hiddev_report_event(hid, report);
928
929 for (n = 0; n < report->maxfield; n++)
930 hid_input_field(hid, report->field[n], data, interrupt);
931
932 if (hid->claimed & HID_CLAIMED_INPUT)
933 hidinput_report_event(hid, report);
934
935 return 0;
936}
937
938/*
939 * Input submission and I/O error handler. 59 * Input submission and I/O error handler.
940 */ 60 */
941 61
@@ -1044,6 +164,65 @@ done:
1044 spin_unlock_irqrestore(&hid->inlock, flags); 164 spin_unlock_irqrestore(&hid->inlock, flags);
1045} 165}
1046 166
167
168static int hid_input_report(int type, struct urb *urb, int interrupt)
169{
170 struct hid_device *hid = urb->context;
171 struct hid_report_enum *report_enum = hid->report_enum + type;
172 u8 *data = urb->transfer_buffer;
173 int len = urb->actual_length;
174 struct hid_report *report;
175 int n, size;
176
177 if (!len) {
178 dbg("empty report");
179 return -1;
180 }
181
182#ifdef DEBUG_DATA
183 printk(KERN_DEBUG __FILE__ ": report (size %u) (%snumbered)\n", len, report_enum->numbered ? "" : "un");
184#endif
185
186 n = 0; /* Normally report number is 0 */
187 if (report_enum->numbered) { /* Device uses numbered reports, data[0] is report number */
188 n = *data++;
189 len--;
190 }
191
192#ifdef DEBUG_DATA
193 {
194 int i;
195 printk(KERN_DEBUG __FILE__ ": report %d (size %u) = ", n, len);
196 for (i = 0; i < len; i++)
197 printk(" %02x", data[i]);
198 printk("\n");
199 }
200#endif
201
202 if (!(report = report_enum->report_id_hash[n])) {
203 dbg("undefined report_id %d received", n);
204 return -1;
205 }
206
207 size = ((report->size - 1) >> 3) + 1;
208
209 if (len < size) {
210 dbg("report %d is too short, (%d < %d)", report->id, len, size);
211 memset(data + len, 0, size - len);
212 }
213
214 if (hid->claimed & HID_CLAIMED_HIDDEV)
215 hiddev_report_event(hid, report);
216
217 for (n = 0; n < report->maxfield; n++)
218 hid_input_field(hid, report->field[n], data, interrupt);
219
220 if (hid->claimed & HID_CLAIMED_INPUT)
221 hidinput_report_event(hid, report);
222
223 return 0;
224}
225
1047/* 226/*
1048 * Input interrupt completion handler. 227 * Input interrupt completion handler.
1049 */ 228 */
@@ -1093,67 +272,6 @@ static void hid_irq_in(struct urb *urb)
1093} 272}
1094 273
1095/* 274/*
1096 * Output the field into the report.
1097 */
1098
1099static void hid_output_field(struct hid_field *field, __u8 *data)
1100{
1101 unsigned count = field->report_count;
1102 unsigned offset = field->report_offset;
1103 unsigned size = field->report_size;
1104 unsigned n;
1105
1106 for (n = 0; n < count; n++) {
1107 if (field->logical_minimum < 0) /* signed values */
1108 implement(data, offset + n * size, size, s32ton(field->value[n], size));
1109 else /* unsigned values */
1110 implement(data, offset + n * size, size, field->value[n]);
1111 }
1112}
1113
1114/*
1115 * Create a report.
1116 */
1117
1118static void hid_output_report(struct hid_report *report, __u8 *data)
1119{
1120 unsigned n;
1121
1122 if (report->id > 0)
1123 *data++ = report->id;
1124
1125 for (n = 0; n < report->maxfield; n++)
1126 hid_output_field(report->field[n], data);
1127}
1128
1129/*
1130 * Set a field value. The report this field belongs to has to be
1131 * created and transferred to the device, to set this value in the
1132 * device.
1133 */
1134
1135int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
1136{
1137 unsigned size = field->report_size;
1138
1139 hid_dump_input(field->usage + offset, value);
1140
1141 if (offset >= field->report_count) {
1142 dbg("offset (%d) exceeds report_count (%d)", offset, field->report_count);
1143 hid_dump_field(field, 8);
1144 return -1;
1145 }
1146 if (field->logical_minimum < 0) {
1147 if (value != snto32(s32ton(value, size), size)) {
1148 dbg("value %d is out of range", value);
1149 return -1;
1150 }
1151 }
1152 field->value[offset] = value;
1153 return 0;
1154}
1155
1156/*
1157 * Find a report field with a specified HID usage. 275 * Find a report field with a specified HID usage.
1158 */ 276 */
1159#if 0 277#if 0
@@ -1379,6 +497,29 @@ void hid_submit_report(struct hid_device *hid, struct hid_report *report, unsign
1379 spin_unlock_irqrestore(&hid->ctrllock, flags); 497 spin_unlock_irqrestore(&hid->ctrllock, flags);
1380} 498}
1381 499
500static int hidinput_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
501{
502 struct hid_device *hid = dev->private;
503 struct hid_field *field;
504 int offset;
505
506 if (type == EV_FF)
507 return input_ff_event(dev, type, code, value);
508
509 if (type != EV_LED)
510 return -1;
511
512 if ((offset = hidinput_find_field(hid, type, code, &field)) == -1) {
513 warn("event field not found");
514 return -1;
515 }
516
517 hid_set_field(field, offset, value);
518 hid_submit_report(hid, field->report, USB_DIR_OUT);
519
520 return 0;
521}
522
1382int hid_wait_io(struct hid_device *hid) 523int hid_wait_io(struct hid_device *hid)
1383{ 524{
1384 if (!wait_event_timeout(hid->wait, (!test_bit(HID_CTRL_RUNNING, &hid->iofl) && 525 if (!wait_event_timeout(hid->wait, (!test_bit(HID_CTRL_RUNNING, &hid->iofl) &&
@@ -1428,6 +569,18 @@ void hid_close(struct hid_device *hid)
1428 usb_kill_urb(hid->urbin); 569 usb_kill_urb(hid->urbin);
1429} 570}
1430 571
572static int hidinput_open(struct input_dev *dev)
573{
574 struct hid_device *hid = dev->private;
575 return hid_open(hid);
576}
577
578static void hidinput_close(struct input_dev *dev)
579{
580 struct hid_device *hid = dev->private;
581 hid_close(hid);
582}
583
1431#define USB_VENDOR_ID_PANJIT 0x134c 584#define USB_VENDOR_ID_PANJIT 0x134c
1432 585
1433#define USB_VENDOR_ID_TURBOX 0x062a 586#define USB_VENDOR_ID_TURBOX 0x062a
diff --git a/drivers/usb/input/hid-ff.c b/drivers/usb/input/hid-ff.c
index a8fc46c721c5..4187f4ee9a9c 100644
--- a/drivers/usb/input/hid-ff.c
+++ b/drivers/usb/input/hid-ff.c
@@ -32,7 +32,7 @@
32#undef DEBUG 32#undef DEBUG
33#include <linux/usb.h> 33#include <linux/usb.h>
34 34
35#include "hid.h" 35#include <linux/hid.h>
36 36
37/* 37/*
38 * This table contains pointers to initializers. To add support for new 38 * This table contains pointers to initializers. To add support for new
diff --git a/drivers/usb/input/hid-input.c b/drivers/usb/input/hid-input.c
index 3a7e5fbff025..8756eb3263de 100644
--- a/drivers/usb/input/hid-input.c
+++ b/drivers/usb/input/hid-input.c
@@ -4,6 +4,7 @@
4 * Copyright (c) 2000-2001 Vojtech Pavlik 4 * Copyright (c) 2000-2001 Vojtech Pavlik
5 * 5 *
6 * USB HID to Linux Input mapping 6 * USB HID to Linux Input mapping
7 *
7 */ 8 */
8 9
9/* 10/*
@@ -26,847 +27,4 @@
26 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic 27 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
27 */ 28 */
28 29
29#include <linux/module.h>
30#include <linux/slab.h>
31#include <linux/kernel.h>
32#include <linux/usb/input.h>
33
34#undef DEBUG
35
36#include "hid.h"
37
38#define unk KEY_UNKNOWN
39
40static const unsigned char hid_keyboard[256] = {
41 0, 0, 0, 0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
42 50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44, 2, 3,
43 4, 5, 6, 7, 8, 9, 10, 11, 28, 1, 14, 15, 57, 12, 13, 26,
44 27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
45 65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
46 105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
47 72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190,
48 191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113,
49 115,114,unk,unk,unk,121,unk, 89, 93,124, 92, 94, 95,unk,unk,unk,
50 122,123, 90, 91, 85,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
51 unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
52 unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
53 unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
54 unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
55 29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
56 150,158,159,128,136,177,178,176,142,152,173,140,unk,unk,unk,unk
57};
58
59static const struct {
60 __s32 x;
61 __s32 y;
62} hid_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
63
64#define map_abs(c) do { usage->code = c; usage->type = EV_ABS; bit = input->absbit; max = ABS_MAX; } while (0)
65#define map_rel(c) do { usage->code = c; usage->type = EV_REL; bit = input->relbit; max = REL_MAX; } while (0)
66#define map_key(c) do { usage->code = c; usage->type = EV_KEY; bit = input->keybit; max = KEY_MAX; } while (0)
67#define map_led(c) do { usage->code = c; usage->type = EV_LED; bit = input->ledbit; max = LED_MAX; } while (0)
68
69#define map_abs_clear(c) do { map_abs(c); clear_bit(c, bit); } while (0)
70#define map_key_clear(c) do { map_key(c); clear_bit(c, bit); } while (0)
71
72#ifdef CONFIG_USB_HIDINPUT_POWERBOOK
73
74struct hidinput_key_translation {
75 u16 from;
76 u16 to;
77 u8 flags;
78};
79
80#define POWERBOOK_FLAG_FKEY 0x01
81
82static struct hidinput_key_translation powerbook_fn_keys[] = {
83 { KEY_BACKSPACE, KEY_DELETE },
84 { KEY_F1, KEY_BRIGHTNESSDOWN, POWERBOOK_FLAG_FKEY },
85 { KEY_F2, KEY_BRIGHTNESSUP, POWERBOOK_FLAG_FKEY },
86 { KEY_F3, KEY_MUTE, POWERBOOK_FLAG_FKEY },
87 { KEY_F4, KEY_VOLUMEDOWN, POWERBOOK_FLAG_FKEY },
88 { KEY_F5, KEY_VOLUMEUP, POWERBOOK_FLAG_FKEY },
89 { KEY_F6, KEY_NUMLOCK, POWERBOOK_FLAG_FKEY },
90 { KEY_F7, KEY_SWITCHVIDEOMODE, POWERBOOK_FLAG_FKEY },
91 { KEY_F8, KEY_KBDILLUMTOGGLE, POWERBOOK_FLAG_FKEY },
92 { KEY_F9, KEY_KBDILLUMDOWN, POWERBOOK_FLAG_FKEY },
93 { KEY_F10, KEY_KBDILLUMUP, POWERBOOK_FLAG_FKEY },
94 { KEY_UP, KEY_PAGEUP },
95 { KEY_DOWN, KEY_PAGEDOWN },
96 { KEY_LEFT, KEY_HOME },
97 { KEY_RIGHT, KEY_END },
98 { }
99};
100
101static struct hidinput_key_translation powerbook_numlock_keys[] = {
102 { KEY_J, KEY_KP1 },
103 { KEY_K, KEY_KP2 },
104 { KEY_L, KEY_KP3 },
105 { KEY_U, KEY_KP4 },
106 { KEY_I, KEY_KP5 },
107 { KEY_O, KEY_KP6 },
108 { KEY_7, KEY_KP7 },
109 { KEY_8, KEY_KP8 },
110 { KEY_9, KEY_KP9 },
111 { KEY_M, KEY_KP0 },
112 { KEY_DOT, KEY_KPDOT },
113 { KEY_SLASH, KEY_KPPLUS },
114 { KEY_SEMICOLON, KEY_KPMINUS },
115 { KEY_P, KEY_KPASTERISK },
116 { KEY_MINUS, KEY_KPEQUAL },
117 { KEY_0, KEY_KPSLASH },
118 { KEY_F6, KEY_NUMLOCK },
119 { KEY_KPENTER, KEY_KPENTER },
120 { KEY_BACKSPACE, KEY_BACKSPACE },
121 { }
122};
123
124static struct hidinput_key_translation powerbook_iso_keyboard[] = {
125 { KEY_GRAVE, KEY_102ND },
126 { KEY_102ND, KEY_GRAVE },
127 { }
128};
129
130static int usbhid_pb_fnmode = 1;
131module_param_named(pb_fnmode, usbhid_pb_fnmode, int, 0644);
132MODULE_PARM_DESC(pb_fnmode,
133 "Mode of fn key on PowerBooks (0 = disabled, 1 = fkeyslast, 2 = fkeysfirst)");
134
135static struct hidinput_key_translation *find_translation(struct hidinput_key_translation *table, u16 from)
136{
137 struct hidinput_key_translation *trans;
138
139 /* Look for the translation */
140 for (trans = table; trans->from; trans++)
141 if (trans->from == from)
142 return trans;
143
144 return NULL;
145}
146
147static int hidinput_pb_event(struct hid_device *hid, struct input_dev *input,
148 struct hid_usage *usage, __s32 value)
149{
150 struct hidinput_key_translation *trans;
151
152 if (usage->code == KEY_FN) {
153 if (value) hid->quirks |= HID_QUIRK_POWERBOOK_FN_ON;
154 else hid->quirks &= ~HID_QUIRK_POWERBOOK_FN_ON;
155
156 input_event(input, usage->type, usage->code, value);
157
158 return 1;
159 }
160
161 if (usbhid_pb_fnmode) {
162 int do_translate;
163
164 trans = find_translation(powerbook_fn_keys, usage->code);
165 if (trans) {
166 if (test_bit(usage->code, hid->pb_pressed_fn))
167 do_translate = 1;
168 else if (trans->flags & POWERBOOK_FLAG_FKEY)
169 do_translate =
170 (usbhid_pb_fnmode == 2 && (hid->quirks & HID_QUIRK_POWERBOOK_FN_ON)) ||
171 (usbhid_pb_fnmode == 1 && !(hid->quirks & HID_QUIRK_POWERBOOK_FN_ON));
172 else
173 do_translate = (hid->quirks & HID_QUIRK_POWERBOOK_FN_ON);
174
175 if (do_translate) {
176 if (value)
177 set_bit(usage->code, hid->pb_pressed_fn);
178 else
179 clear_bit(usage->code, hid->pb_pressed_fn);
180
181 input_event(input, usage->type, trans->to, value);
182
183 return 1;
184 }
185 }
186
187 if (test_bit(usage->code, hid->pb_pressed_numlock) ||
188 test_bit(LED_NUML, input->led)) {
189 trans = find_translation(powerbook_numlock_keys, usage->code);
190
191 if (trans) {
192 if (value)
193 set_bit(usage->code, hid->pb_pressed_numlock);
194 else
195 clear_bit(usage->code, hid->pb_pressed_numlock);
196
197 input_event(input, usage->type, trans->to, value);
198 }
199
200 return 1;
201 }
202 }
203
204 if (hid->quirks & HID_QUIRK_POWERBOOK_ISO_KEYBOARD) {
205 trans = find_translation(powerbook_iso_keyboard, usage->code);
206 if (trans) {
207 input_event(input, usage->type, trans->to, value);
208 return 1;
209 }
210 }
211
212 return 0;
213}
214
215static void hidinput_pb_setup(struct input_dev *input)
216{
217 struct hidinput_key_translation *trans;
218
219 set_bit(KEY_NUMLOCK, input->keybit);
220
221 /* Enable all needed keys */
222 for (trans = powerbook_fn_keys; trans->from; trans++)
223 set_bit(trans->to, input->keybit);
224
225 for (trans = powerbook_numlock_keys; trans->from; trans++)
226 set_bit(trans->to, input->keybit);
227
228 for (trans = powerbook_iso_keyboard; trans->from; trans++)
229 set_bit(trans->to, input->keybit);
230}
231#else
232static inline int hidinput_pb_event(struct hid_device *hid, struct input_dev *input,
233 struct hid_usage *usage, __s32 value)
234{
235 return 0;
236}
237
238static inline void hidinput_pb_setup(struct input_dev *input)
239{
240}
241#endif
242
243static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
244 struct hid_usage *usage)
245{
246 struct input_dev *input = hidinput->input;
247 struct hid_device *device = input->private;
248 int max = 0, code;
249 unsigned long *bit = NULL;
250
251 field->hidinput = hidinput;
252
253#ifdef DEBUG
254 printk(KERN_DEBUG "Mapping: ");
255 resolv_usage(usage->hid);
256 printk(" ---> ");
257#endif
258
259 if (field->flags & HID_MAIN_ITEM_CONSTANT)
260 goto ignore;
261
262 switch (usage->hid & HID_USAGE_PAGE) {
263
264 case HID_UP_UNDEFINED:
265 goto ignore;
266
267 case HID_UP_KEYBOARD:
268
269 set_bit(EV_REP, input->evbit);
270
271 if ((usage->hid & HID_USAGE) < 256) {
272 if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
273 map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
274 } else
275 map_key(KEY_UNKNOWN);
276
277 break;
278
279 case HID_UP_BUTTON:
280
281 code = ((usage->hid - 1) & 0xf);
282
283 switch (field->application) {
284 case HID_GD_MOUSE:
285 case HID_GD_POINTER: code += 0x110; break;
286 case HID_GD_JOYSTICK: code += 0x120; break;
287 case HID_GD_GAMEPAD: code += 0x130; break;
288 default:
289 switch (field->physical) {
290 case HID_GD_MOUSE:
291 case HID_GD_POINTER: code += 0x110; break;
292 case HID_GD_JOYSTICK: code += 0x120; break;
293 case HID_GD_GAMEPAD: code += 0x130; break;
294 default: code += 0x100;
295 }
296 }
297
298 map_key(code);
299 break;
300
301
302 case HID_UP_SIMULATION:
303
304 switch (usage->hid & 0xffff) {
305 case 0xba: map_abs(ABS_RUDDER); break;
306 case 0xbb: map_abs(ABS_THROTTLE); break;
307 case 0xc4: map_abs(ABS_GAS); break;
308 case 0xc5: map_abs(ABS_BRAKE); break;
309 case 0xc8: map_abs(ABS_WHEEL); break;
310 default: goto ignore;
311 }
312 break;
313
314 case HID_UP_GENDESK:
315
316 if ((usage->hid & 0xf0) == 0x80) { /* SystemControl */
317 switch (usage->hid & 0xf) {
318 case 0x1: map_key_clear(KEY_POWER); break;
319 case 0x2: map_key_clear(KEY_SLEEP); break;
320 case 0x3: map_key_clear(KEY_WAKEUP); break;
321 default: goto unknown;
322 }
323 break;
324 }
325
326 if ((usage->hid & 0xf0) == 0x90) { /* D-pad */
327 switch (usage->hid) {
328 case HID_GD_UP: usage->hat_dir = 1; break;
329 case HID_GD_DOWN: usage->hat_dir = 5; break;
330 case HID_GD_RIGHT: usage->hat_dir = 3; break;
331 case HID_GD_LEFT: usage->hat_dir = 7; break;
332 default: goto unknown;
333 }
334 if (field->dpad) {
335 map_abs(field->dpad);
336 goto ignore;
337 }
338 map_abs(ABS_HAT0X);
339 break;
340 }
341
342 switch (usage->hid) {
343
344 /* These usage IDs map directly to the usage codes. */
345 case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
346 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
347 case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL:
348 if (field->flags & HID_MAIN_ITEM_RELATIVE)
349 map_rel(usage->hid & 0xf);
350 else
351 map_abs(usage->hid & 0xf);
352 break;
353
354 case HID_GD_HATSWITCH:
355 usage->hat_min = field->logical_minimum;
356 usage->hat_max = field->logical_maximum;
357 map_abs(ABS_HAT0X);
358 break;
359
360 case HID_GD_START: map_key_clear(BTN_START); break;
361 case HID_GD_SELECT: map_key_clear(BTN_SELECT); break;
362
363 default: goto unknown;
364 }
365
366 break;
367
368 case HID_UP_LED:
369 if (((usage->hid - 1) & 0xffff) >= LED_MAX)
370 goto ignore;
371 map_led((usage->hid - 1) & 0xffff);
372 break;
373
374 case HID_UP_DIGITIZER:
375
376 switch (usage->hid & 0xff) {
377
378 case 0x30: /* TipPressure */
379 if (!test_bit(BTN_TOUCH, input->keybit)) {
380 device->quirks |= HID_QUIRK_NOTOUCH;
381 set_bit(EV_KEY, input->evbit);
382 set_bit(BTN_TOUCH, input->keybit);
383 }
384
385 map_abs_clear(ABS_PRESSURE);
386 break;
387
388 case 0x32: /* InRange */
389 switch (field->physical & 0xff) {
390 case 0x21: map_key(BTN_TOOL_MOUSE); break;
391 case 0x22: map_key(BTN_TOOL_FINGER); break;
392 default: map_key(BTN_TOOL_PEN); break;
393 }
394 break;
395
396 case 0x3c: /* Invert */
397 map_key_clear(BTN_TOOL_RUBBER);
398 break;
399
400 case 0x33: /* Touch */
401 case 0x42: /* TipSwitch */
402 case 0x43: /* TipSwitch2 */
403 device->quirks &= ~HID_QUIRK_NOTOUCH;
404 map_key_clear(BTN_TOUCH);
405 break;
406
407 case 0x44: /* BarrelSwitch */
408 map_key_clear(BTN_STYLUS);
409 break;
410
411 default: goto unknown;
412 }
413 break;
414
415 case HID_UP_CONSUMER: /* USB HUT v1.1, pages 56-62 */
416
417 switch (usage->hid & HID_USAGE) {
418 case 0x000: goto ignore;
419 case 0x034: map_key_clear(KEY_SLEEP); break;
420 case 0x036: map_key_clear(BTN_MISC); break;
421 case 0x045: map_key_clear(KEY_RADIO); break;
422 case 0x08a: map_key_clear(KEY_WWW); break;
423 case 0x08d: map_key_clear(KEY_PROGRAM); break;
424 case 0x095: map_key_clear(KEY_HELP); break;
425 case 0x09c: map_key_clear(KEY_CHANNELUP); break;
426 case 0x09d: map_key_clear(KEY_CHANNELDOWN); break;
427 case 0x0b0: map_key_clear(KEY_PLAY); break;
428 case 0x0b1: map_key_clear(KEY_PAUSE); break;
429 case 0x0b2: map_key_clear(KEY_RECORD); break;
430 case 0x0b3: map_key_clear(KEY_FASTFORWARD); break;
431 case 0x0b4: map_key_clear(KEY_REWIND); break;
432 case 0x0b5: map_key_clear(KEY_NEXTSONG); break;
433 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG); break;
434 case 0x0b7: map_key_clear(KEY_STOPCD); break;
435 case 0x0b8: map_key_clear(KEY_EJECTCD); break;
436 case 0x0cd: map_key_clear(KEY_PLAYPAUSE); break;
437 case 0x0e0: map_abs_clear(ABS_VOLUME); break;
438 case 0x0e2: map_key_clear(KEY_MUTE); break;
439 case 0x0e5: map_key_clear(KEY_BASSBOOST); break;
440 case 0x0e9: map_key_clear(KEY_VOLUMEUP); break;
441 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN); break;
442 case 0x183: map_key_clear(KEY_CONFIG); break;
443 case 0x18a: map_key_clear(KEY_MAIL); break;
444 case 0x192: map_key_clear(KEY_CALC); break;
445 case 0x194: map_key_clear(KEY_FILE); break;
446 case 0x1a7: map_key_clear(KEY_DOCUMENTS); break;
447 case 0x201: map_key_clear(KEY_NEW); break;
448 case 0x207: map_key_clear(KEY_SAVE); break;
449 case 0x208: map_key_clear(KEY_PRINT); break;
450 case 0x209: map_key_clear(KEY_PROPS); break;
451 case 0x21a: map_key_clear(KEY_UNDO); break;
452 case 0x21b: map_key_clear(KEY_COPY); break;
453 case 0x21c: map_key_clear(KEY_CUT); break;
454 case 0x21d: map_key_clear(KEY_PASTE); break;
455 case 0x221: map_key_clear(KEY_FIND); break;
456 case 0x223: map_key_clear(KEY_HOMEPAGE); break;
457 case 0x224: map_key_clear(KEY_BACK); break;
458 case 0x225: map_key_clear(KEY_FORWARD); break;
459 case 0x226: map_key_clear(KEY_STOP); break;
460 case 0x227: map_key_clear(KEY_REFRESH); break;
461 case 0x22a: map_key_clear(KEY_BOOKMARKS); break;
462 case 0x233: map_key_clear(KEY_SCROLLUP); break;
463 case 0x234: map_key_clear(KEY_SCROLLDOWN); break;
464 case 0x238: map_rel(REL_HWHEEL); break;
465 case 0x279: map_key_clear(KEY_REDO); break;
466 case 0x289: map_key_clear(KEY_REPLY); break;
467 case 0x28b: map_key_clear(KEY_FORWARDMAIL); break;
468 case 0x28c: map_key_clear(KEY_SEND); break;
469
470 /* Reported on a Cherry Cymotion keyboard */
471 case 0x301: map_key_clear(KEY_PROG1); break;
472 case 0x302: map_key_clear(KEY_PROG2); break;
473 case 0x303: map_key_clear(KEY_PROG3); break;
474
475 default: goto ignore;
476 }
477 break;
478
479 case HID_UP_HPVENDOR: /* Reported on a Dutch layout HP5308 */
480
481 set_bit(EV_REP, input->evbit);
482 switch (usage->hid & HID_USAGE) {
483 case 0x021: map_key_clear(KEY_PRINT); break;
484 case 0x070: map_key_clear(KEY_HP); break;
485 case 0x071: map_key_clear(KEY_CAMERA); break;
486 case 0x072: map_key_clear(KEY_SOUND); break;
487 case 0x073: map_key_clear(KEY_QUESTION); break;
488 case 0x080: map_key_clear(KEY_EMAIL); break;
489 case 0x081: map_key_clear(KEY_CHAT); break;
490 case 0x082: map_key_clear(KEY_SEARCH); break;
491 case 0x083: map_key_clear(KEY_CONNECT); break;
492 case 0x084: map_key_clear(KEY_FINANCE); break;
493 case 0x085: map_key_clear(KEY_SPORT); break;
494 case 0x086: map_key_clear(KEY_SHOP); break;
495 default: goto ignore;
496 }
497 break;
498
499 case HID_UP_MSVENDOR:
500 goto ignore;
501
502 case HID_UP_CUSTOM: /* Reported on Logitech and Powerbook USB keyboards */
503
504 set_bit(EV_REP, input->evbit);
505 switch(usage->hid & HID_USAGE) {
506 case 0x003:
507 /* The fn key on Apple PowerBooks */
508 map_key_clear(KEY_FN);
509 hidinput_pb_setup(input);
510 break;
511
512 default: goto ignore;
513 }
514 break;
515
516 case HID_UP_LOGIVENDOR: /* Reported on Logitech Ultra X Media Remote */
517
518 set_bit(EV_REP, input->evbit);
519 switch(usage->hid & HID_USAGE) {
520 case 0x004: map_key_clear(KEY_AGAIN); break;
521 case 0x00d: map_key_clear(KEY_HOME); break;
522 case 0x024: map_key_clear(KEY_SHUFFLE); break;
523 case 0x025: map_key_clear(KEY_TV); break;
524 case 0x026: map_key_clear(KEY_MENU); break;
525 case 0x031: map_key_clear(KEY_AUDIO); break;
526 case 0x032: map_key_clear(KEY_TEXT); break;
527 case 0x033: map_key_clear(KEY_LAST); break;
528 case 0x047: map_key_clear(KEY_MP3); break;
529 case 0x048: map_key_clear(KEY_DVD); break;
530 case 0x049: map_key_clear(KEY_MEDIA); break;
531 case 0x04a: map_key_clear(KEY_VIDEO); break;
532 case 0x04b: map_key_clear(KEY_ANGLE); break;
533 case 0x04c: map_key_clear(KEY_LANGUAGE); break;
534 case 0x04d: map_key_clear(KEY_SUBTITLE); break;
535 case 0x051: map_key_clear(KEY_RED); break;
536 case 0x052: map_key_clear(KEY_CLOSE); break;
537 default: goto ignore;
538 }
539 break;
540
541 case HID_UP_PID:
542
543 switch(usage->hid & HID_USAGE) {
544 case 0xa4: map_key_clear(BTN_DEAD); break;
545 default: goto ignore;
546 }
547 break;
548
549 default:
550 unknown:
551 if (field->report_size == 1) {
552 if (field->report->type == HID_OUTPUT_REPORT) {
553 map_led(LED_MISC);
554 break;
555 }
556 map_key(BTN_MISC);
557 break;
558 }
559 if (field->flags & HID_MAIN_ITEM_RELATIVE) {
560 map_rel(REL_MISC);
561 break;
562 }
563 map_abs(ABS_MISC);
564 break;
565 }
566
567 if (device->quirks & HID_QUIRK_MIGHTYMOUSE) {
568 if (usage->hid == HID_GD_Z)
569 map_rel(REL_HWHEEL);
570 else if (usage->code == BTN_1)
571 map_key(BTN_2);
572 else if (usage->code == BTN_2)
573 map_key(BTN_1);
574 }
575
576 if ((device->quirks & (HID_QUIRK_2WHEEL_MOUSE_HACK_7 | HID_QUIRK_2WHEEL_MOUSE_HACK_5)) &&
577 (usage->type == EV_REL) && (usage->code == REL_WHEEL))
578 set_bit(REL_HWHEEL, bit);
579
580 if (((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_5) && (usage->hid == 0x00090005))
581 || ((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_7) && (usage->hid == 0x00090007)))
582 goto ignore;
583
584 if ((device->quirks & HID_QUIRK_BAD_RELATIVE_KEYS) &&
585 usage->type == EV_KEY && (field->flags & HID_MAIN_ITEM_RELATIVE))
586 field->flags &= ~HID_MAIN_ITEM_RELATIVE;
587
588 set_bit(usage->type, input->evbit);
589
590 while (usage->code <= max && test_and_set_bit(usage->code, bit))
591 usage->code = find_next_zero_bit(bit, max + 1, usage->code);
592
593 if (usage->code > max)
594 goto ignore;
595
596
597 if (usage->type == EV_ABS) {
598
599 int a = field->logical_minimum;
600 int b = field->logical_maximum;
601
602 if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
603 a = field->logical_minimum = 0;
604 b = field->logical_maximum = 255;
605 }
606
607 if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
608 input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
609 else input_set_abs_params(input, usage->code, a, b, 0, 0);
610
611 }
612
613 if (usage->type == EV_ABS &&
614 (usage->hat_min < usage->hat_max || usage->hat_dir)) {
615 int i;
616 for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
617 input_set_abs_params(input, i, -1, 1, 0, 0);
618 set_bit(i, input->absbit);
619 }
620 if (usage->hat_dir && !field->dpad)
621 field->dpad = usage->code;
622 }
623
624#ifdef DEBUG
625 resolv_event(usage->type, usage->code);
626 printk("\n");
627#endif
628 return;
629
630ignore:
631#ifdef DEBUG
632 printk("IGNORED\n");
633#endif
634 return;
635}
636
637void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
638{
639 struct input_dev *input;
640 int *quirks = &hid->quirks;
641
642 if (!field->hidinput)
643 return;
644
645 input = field->hidinput->input;
646
647 if (!usage->type)
648 return;
649
650 if (((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_5) && (usage->hid == 0x00090005))
651 || ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_7) && (usage->hid == 0x00090007))) {
652 if (value) hid->quirks |= HID_QUIRK_2WHEEL_MOUSE_HACK_ON;
653 else hid->quirks &= ~HID_QUIRK_2WHEEL_MOUSE_HACK_ON;
654 return;
655 }
656
657 if ((hid->quirks & HID_QUIRK_INVERT_HWHEEL) && (usage->code == REL_HWHEEL)) {
658 input_event(input, usage->type, usage->code, -value);
659 return;
660 }
661
662 if ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_ON) && (usage->code == REL_WHEEL)) {
663 input_event(input, usage->type, REL_HWHEEL, value);
664 return;
665 }
666
667 if ((hid->quirks & HID_QUIRK_POWERBOOK_HAS_FN) && hidinput_pb_event(hid, input, usage, value))
668 return;
669
670 if (usage->hat_min < usage->hat_max || usage->hat_dir) {
671 int hat_dir = usage->hat_dir;
672 if (!hat_dir)
673 hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
674 if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
675 input_event(input, usage->type, usage->code , hid_hat_to_axis[hat_dir].x);
676 input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
677 return;
678 }
679
680 if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */
681 *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
682 return;
683 }
684
685 if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */
686 if (value) {
687 input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
688 return;
689 }
690 input_event(input, usage->type, usage->code, 0);
691 input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
692 return;
693 }
694
695 if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */
696 int a = field->logical_minimum;
697 int b = field->logical_maximum;
698 input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3));
699 }
700
701 if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
702 dbg("Maximum Effects - %d",value);
703 return;
704 }
705
706 if (usage->hid == (HID_UP_PID | 0x7fUL)) {
707 dbg("PID Pool Report\n");
708 return;
709 }
710
711 if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
712 return;
713
714 input_event(input, usage->type, usage->code, value);
715
716 if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY))
717 input_event(input, usage->type, usage->code, 0);
718}
719
720void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
721{
722 struct hid_input *hidinput;
723
724 list_for_each_entry(hidinput, &hid->inputs, list)
725 input_sync(hidinput->input);
726}
727
728static int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
729{
730 struct hid_report *report;
731 int i, j;
732
733 list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
734 for (i = 0; i < report->maxfield; i++) {
735 *field = report->field[i];
736 for (j = 0; j < (*field)->maxusage; j++)
737 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
738 return j;
739 }
740 }
741 return -1;
742}
743
744static int hidinput_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
745{
746 struct hid_device *hid = dev->private;
747 struct hid_field *field;
748 int offset;
749
750 if (type == EV_FF)
751 return input_ff_event(dev, type, code, value);
752
753 if (type != EV_LED)
754 return -1;
755
756 if ((offset = hidinput_find_field(hid, type, code, &field)) == -1) {
757 warn("event field not found");
758 return -1;
759 }
760
761 hid_set_field(field, offset, value);
762 hid_submit_report(hid, field->report, USB_DIR_OUT);
763
764 return 0;
765}
766
767static int hidinput_open(struct input_dev *dev)
768{
769 struct hid_device *hid = dev->private;
770 return hid_open(hid);
771}
772
773static void hidinput_close(struct input_dev *dev)
774{
775 struct hid_device *hid = dev->private;
776 hid_close(hid);
777}
778
779/*
780 * Register the input device; print a message.
781 * Configure the input layer interface
782 * Read all reports and initialize the absolute field values.
783 */
784
785int hidinput_connect(struct hid_device *hid)
786{
787 struct usb_device *dev = hid->dev;
788 struct hid_report *report;
789 struct hid_input *hidinput = NULL;
790 struct input_dev *input_dev;
791 int i, j, k;
792
793 INIT_LIST_HEAD(&hid->inputs);
794
795 for (i = 0; i < hid->maxcollection; i++)
796 if (hid->collection[i].type == HID_COLLECTION_APPLICATION ||
797 hid->collection[i].type == HID_COLLECTION_PHYSICAL)
798 if (IS_INPUT_APPLICATION(hid->collection[i].usage))
799 break;
800
801 if (i == hid->maxcollection)
802 return -1;
803
804 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++)
805 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
806
807 if (!report->maxfield)
808 continue;
809
810 if (!hidinput) {
811 hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
812 input_dev = input_allocate_device();
813 if (!hidinput || !input_dev) {
814 kfree(hidinput);
815 input_free_device(input_dev);
816 err("Out of memory during hid input probe");
817 return -1;
818 }
819
820 input_dev->private = hid;
821 input_dev->event = hidinput_input_event;
822 input_dev->open = hidinput_open;
823 input_dev->close = hidinput_close;
824
825 input_dev->name = hid->name;
826 input_dev->phys = hid->phys;
827 input_dev->uniq = hid->uniq;
828 usb_to_input_id(dev, &input_dev->id);
829 input_dev->cdev.dev = &hid->intf->dev;
830
831 hidinput->input = input_dev;
832 list_add_tail(&hidinput->list, &hid->inputs);
833 }
834
835 for (i = 0; i < report->maxfield; i++)
836 for (j = 0; j < report->field[i]->maxusage; j++)
837 hidinput_configure_usage(hidinput, report->field[i],
838 report->field[i]->usage + j);
839
840 if (hid->quirks & HID_QUIRK_MULTI_INPUT) {
841 /* This will leave hidinput NULL, so that it
842 * allocates another one if we have more inputs on
843 * the same interface. Some devices (e.g. Happ's
844 * UGCI) cram a lot of unrelated inputs into the
845 * same interface. */
846 hidinput->report = report;
847 input_register_device(hidinput->input);
848 hidinput = NULL;
849 }
850 }
851
852 /* This only gets called when we are a single-input (most of the
853 * time). IOW, not a HID_QUIRK_MULTI_INPUT. The hid_ff_init() is
854 * only useful in this case, and not for multi-input quirks. */
855 if (hidinput) {
856 hid_ff_init(hid);
857 input_register_device(hidinput->input);
858 }
859
860 return 0;
861}
862
863void hidinput_disconnect(struct hid_device *hid)
864{
865 struct hid_input *hidinput, *next;
866 30
867 list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
868 list_del(&hidinput->list);
869 input_unregister_device(hidinput->input);
870 kfree(hidinput);
871 }
872}
diff --git a/drivers/usb/input/hid-lgff.c b/drivers/usb/input/hid-lgff.c
index 93da222b6da8..e977ba3d17e0 100644
--- a/drivers/usb/input/hid-lgff.c
+++ b/drivers/usb/input/hid-lgff.c
@@ -29,7 +29,7 @@
29 29
30#include <linux/input.h> 30#include <linux/input.h>
31#include <linux/usb.h> 31#include <linux/usb.h>
32#include "hid.h" 32#include <linux/hid.h>
33 33
34struct device_type { 34struct device_type {
35 u16 idVendor; 35 u16 idVendor;
diff --git a/drivers/usb/input/hid-pidff.c b/drivers/usb/input/hid-pidff.c
index 5420c13eb8eb..b4caea3864e3 100644
--- a/drivers/usb/input/hid-pidff.c
+++ b/drivers/usb/input/hid-pidff.c
@@ -28,7 +28,9 @@
28#include <linux/input.h> 28#include <linux/input.h>
29#include <linux/usb.h> 29#include <linux/usb.h>
30 30
31#include "hid.h" 31#include <linux/hid.h>
32
33#include "usbhid.h"
32 34
33#define PID_EFFECTS_MAX 64 35#define PID_EFFECTS_MAX 64
34 36
diff --git a/drivers/usb/input/hid-tmff.c b/drivers/usb/input/hid-tmff.c
index 2d5be4c318ac..1cd1418ad6ac 100644
--- a/drivers/usb/input/hid-tmff.c
+++ b/drivers/usb/input/hid-tmff.c
@@ -32,7 +32,7 @@
32#undef DEBUG 32#undef DEBUG
33#include <linux/usb.h> 33#include <linux/usb.h>
34 34
35#include "hid.h" 35#include <linux/hid.h>
36 36
37/* Usages for thrustmaster devices I know about */ 37/* Usages for thrustmaster devices I know about */
38#define THRUSTMASTER_USAGE_RUMBLE_LR (HID_UP_GENDESK | 0xbb) 38#define THRUSTMASTER_USAGE_RUMBLE_LR (HID_UP_GENDESK | 0xbb)
diff --git a/drivers/usb/input/hid-zpff.c b/drivers/usb/input/hid-zpff.c
index d2ce3214572c..af1bfae39dce 100644
--- a/drivers/usb/input/hid-zpff.c
+++ b/drivers/usb/input/hid-zpff.c
@@ -27,7 +27,7 @@
27 27
28#include <linux/input.h> 28#include <linux/input.h>
29#include <linux/usb.h> 29#include <linux/usb.h>
30#include "hid.h" 30#include <linux/hid.h>
31 31
32struct zpff_device { 32struct zpff_device {
33 struct hid_report *report; 33 struct hid_report *report;
diff --git a/drivers/usb/input/hiddev.c b/drivers/usb/input/hiddev.c
index 7dc14d0cacc1..cbd3b60d93bb 100644
--- a/drivers/usb/input/hiddev.c
+++ b/drivers/usb/input/hiddev.c
@@ -32,8 +32,9 @@
32#include <linux/smp_lock.h> 32#include <linux/smp_lock.h>
33#include <linux/input.h> 33#include <linux/input.h>
34#include <linux/usb.h> 34#include <linux/usb.h>
35#include "hid.h" 35#include <linux/hid.h>
36#include <linux/hiddev.h> 36#include <linux/hiddev.h>
37#include "usbhid.h"
37 38
38#ifdef CONFIG_USB_DYNAMIC_MINORS 39#ifdef CONFIG_USB_DYNAMIC_MINORS
39#define HIDDEV_MINOR_BASE 0 40#define HIDDEV_MINOR_BASE 0
diff --git a/drivers/usb/input/hid-debug.h b/include/linux/hid-debug.h
index f04d6d75c098..f04d6d75c098 100644
--- a/drivers/usb/input/hid-debug.h
+++ b/include/linux/hid-debug.h
diff --git a/drivers/usb/input/hid.h b/include/linux/hid.h
index 76ad68d9edfd..ee567ae6fec1 100644
--- a/drivers/usb/input/hid.h
+++ b/include/linux/hid.h
@@ -6,6 +6,7 @@
6 * 6 *
7 * Copyright (c) 1999 Andreas Gal 7 * Copyright (c) 1999 Andreas Gal
8 * Copyright (c) 2000-2001 Vojtech Pavlik 8 * Copyright (c) 2000-2001 Vojtech Pavlik
9 * Copyright (c) 2006 Jiri Kosina
9 */ 10 */
10 11
11/* 12/*
@@ -33,6 +34,7 @@
33#include <linux/list.h> 34#include <linux/list.h>
34#include <linux/timer.h> 35#include <linux/timer.h>
35#include <linux/workqueue.h> 36#include <linux/workqueue.h>
37#include <linux/input.h>
36 38
37/* 39/*
38 * USB HID (Human Interface Device) interface class code 40 * USB HID (Human Interface Device) interface class code
@@ -260,7 +262,7 @@ struct hid_item {
260#define HID_QUIRK_POWERBOOK_HAS_FN 0x00001000 262#define HID_QUIRK_POWERBOOK_HAS_FN 0x00001000
261#define HID_QUIRK_POWERBOOK_FN_ON 0x00002000 263#define HID_QUIRK_POWERBOOK_FN_ON 0x00002000
262#define HID_QUIRK_INVERT_HWHEEL 0x00004000 264#define HID_QUIRK_INVERT_HWHEEL 0x00004000
263#define HID_QUIRK_POWERBOOK_ISO_KEYBOARD 0x00008000 265#define HID_QUIRK_POWERBOOK_ISO_KEYBOARD 0x00008000
264#define HID_QUIRK_BAD_RELATIVE_KEYS 0x00010000 266#define HID_QUIRK_BAD_RELATIVE_KEYS 0x00010000
265 267
266/* 268/*
@@ -496,9 +498,7 @@ struct hid_descriptor {
496#define resolv_event(a,b) do { } while (0) 498#define resolv_event(a,b) do { } while (0)
497#endif 499#endif
498 500
499#endif 501#ifdef CONFIG_HID
500
501#ifdef CONFIG_USB_HIDINPUT
502/* Applications from HID Usage Tables 4/8/99 Version 1.1 */ 502/* Applications from HID Usage Tables 4/8/99 Version 1.1 */
503/* We ignore a few input applications that are not widely used */ 503/* We ignore a few input applications that are not widely used */
504#define IS_INPUT_APPLICATION(a) (((a >= 0x00010000) && (a <= 0x00010008)) || (a == 0x00010080) || (a == 0x000c0001)) 504#define IS_INPUT_APPLICATION(a) (((a >= 0x00010000) && (a <= 0x00010008)) || (a == 0x00010080) || (a == 0x000c0001))
@@ -514,13 +514,12 @@ static inline int hidinput_connect(struct hid_device *hid) { return -ENODEV; }
514static inline void hidinput_disconnect(struct hid_device *hid) { } 514static inline void hidinput_disconnect(struct hid_device *hid) { }
515#endif 515#endif
516 516
517int hid_open(struct hid_device *);
518void hid_close(struct hid_device *);
519int hid_set_field(struct hid_field *, unsigned, __s32); 517int hid_set_field(struct hid_field *, unsigned, __s32);
520void hid_submit_report(struct hid_device *, struct hid_report *, unsigned char dir); 518int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field);
521void hid_init_reports(struct hid_device *hid); 519void hid_input_field(struct hid_device *hid, struct hid_field *field, __u8 *data, int interrupt);
522int hid_wait_io(struct hid_device* hid); 520void hid_output_report(struct hid_report *report, __u8 *data);
523 521void hid_free_device(struct hid_device *device);
522struct hid_device *hid_parse_report(__u8 *start, unsigned size);
524 523
525#ifdef CONFIG_HID_FF 524#ifdef CONFIG_HID_FF
526int hid_ff_init(struct hid_device *hid); 525int hid_ff_init(struct hid_device *hid);
@@ -537,4 +536,5 @@ static inline int hid_pidff_init(struct hid_device *hid) { return -ENODEV; }
537#else 536#else
538static inline int hid_ff_init(struct hid_device *hid) { return -1; } 537static inline int hid_ff_init(struct hid_device *hid) { return -1; }
539#endif 538#endif
539#endif
540 540
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-02 08:47:07 -0500