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1da177e4 LT |
1 | /* |
2 | * USB HID support for Linux | |
3 | * | |
4 | * Copyright (c) 1999 Andreas Gal | |
bf0964dc MH |
5 | * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz> |
6 | * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc | |
1da177e4 LT |
7 | */ |
8 | ||
9 | /* | |
10 | * This program is free software; you can redistribute it and/or modify it | |
11 | * under the terms of the GNU General Public License as published by the Free | |
12 | * Software Foundation; either version 2 of the License, or (at your option) | |
13 | * any later version. | |
14 | */ | |
15 | ||
16 | #include <linux/module.h> | |
17 | #include <linux/slab.h> | |
18 | #include <linux/init.h> | |
19 | #include <linux/kernel.h> | |
20 | #include <linux/sched.h> | |
21 | #include <linux/list.h> | |
22 | #include <linux/mm.h> | |
23 | #include <linux/smp_lock.h> | |
24 | #include <linux/spinlock.h> | |
25 | #include <asm/unaligned.h> | |
26 | #include <asm/byteorder.h> | |
27 | #include <linux/input.h> | |
28 | #include <linux/wait.h> | |
29 | ||
30 | #undef DEBUG | |
31 | #undef DEBUG_DATA | |
32 | ||
33 | #include <linux/usb.h> | |
34 | ||
35 | #include "hid.h" | |
36 | #include <linux/hiddev.h> | |
37 | ||
38 | /* | |
39 | * Version Information | |
40 | */ | |
41 | ||
bf0964dc | 42 | #define DRIVER_VERSION "v2.6" |
1da177e4 LT |
43 | #define DRIVER_AUTHOR "Andreas Gal, Vojtech Pavlik" |
44 | #define DRIVER_DESC "USB HID core driver" | |
45 | #define DRIVER_LICENSE "GPL" | |
46 | ||
47 | static char *hid_types[] = {"Device", "Pointer", "Mouse", "Device", "Joystick", | |
48 | "Gamepad", "Keyboard", "Keypad", "Multi-Axis Controller"}; | |
49 | /* | |
50 | * Module parameters. | |
51 | */ | |
52 | ||
53 | static unsigned int hid_mousepoll_interval; | |
54 | module_param_named(mousepoll, hid_mousepoll_interval, uint, 0644); | |
55 | MODULE_PARM_DESC(mousepoll, "Polling interval of mice"); | |
56 | ||
57 | /* | |
58 | * Register a new report for a device. | |
59 | */ | |
60 | ||
61 | static 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 = kmalloc(sizeof(struct hid_report), GFP_KERNEL))) | |
70 | return NULL; | |
71 | memset(report, 0, sizeof(struct hid_report)); | |
72 | ||
73 | if (id != 0) | |
74 | report_enum->numbered = 1; | |
75 | ||
76 | report->id = id; | |
77 | report->type = type; | |
78 | report->size = 0; | |
79 | report->device = device; | |
80 | report_enum->report_id_hash[id] = report; | |
81 | ||
82 | list_add_tail(&report->list, &report_enum->report_list); | |
83 | ||
84 | return report; | |
85 | } | |
86 | ||
87 | /* | |
88 | * Register a new field for this report. | |
89 | */ | |
90 | ||
91 | static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values) | |
92 | { | |
93 | struct hid_field *field; | |
94 | ||
95 | if (report->maxfield == HID_MAX_FIELDS) { | |
96 | dbg("too many fields in report"); | |
97 | return NULL; | |
98 | } | |
99 | ||
100 | if (!(field = kmalloc(sizeof(struct hid_field) + usages * sizeof(struct hid_usage) | |
101 | + values * sizeof(unsigned), GFP_KERNEL))) return NULL; | |
102 | ||
103 | memset(field, 0, sizeof(struct hid_field) + usages * sizeof(struct hid_usage) | |
104 | + values * sizeof(unsigned)); | |
105 | ||
106 | field->index = report->maxfield++; | |
107 | report->field[field->index] = field; | |
108 | field->usage = (struct hid_usage *)(field + 1); | |
109 | field->value = (unsigned *)(field->usage + usages); | |
110 | field->report = report; | |
111 | ||
112 | return field; | |
113 | } | |
114 | ||
115 | /* | |
116 | * Open a collection. The type/usage is pushed on the stack. | |
117 | */ | |
118 | ||
119 | static int open_collection(struct hid_parser *parser, unsigned type) | |
120 | { | |
121 | struct hid_collection *collection; | |
122 | unsigned usage; | |
123 | ||
124 | usage = parser->local.usage[0]; | |
125 | ||
126 | if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) { | |
127 | dbg("collection stack overflow"); | |
128 | return -1; | |
129 | } | |
130 | ||
131 | if (parser->device->maxcollection == parser->device->collection_size) { | |
132 | collection = kmalloc(sizeof(struct hid_collection) * | |
133 | parser->device->collection_size * 2, GFP_KERNEL); | |
134 | if (collection == NULL) { | |
135 | dbg("failed to reallocate collection array"); | |
136 | return -1; | |
137 | } | |
138 | memcpy(collection, parser->device->collection, | |
139 | sizeof(struct hid_collection) * | |
140 | parser->device->collection_size); | |
141 | memset(collection + parser->device->collection_size, 0, | |
142 | sizeof(struct hid_collection) * | |
143 | parser->device->collection_size); | |
144 | kfree(parser->device->collection); | |
145 | parser->device->collection = collection; | |
146 | parser->device->collection_size *= 2; | |
147 | } | |
148 | ||
149 | parser->collection_stack[parser->collection_stack_ptr++] = | |
150 | parser->device->maxcollection; | |
151 | ||
152 | collection = parser->device->collection + | |
153 | parser->device->maxcollection++; | |
154 | collection->type = type; | |
155 | collection->usage = usage; | |
156 | collection->level = parser->collection_stack_ptr - 1; | |
157 | ||
158 | if (type == HID_COLLECTION_APPLICATION) | |
159 | parser->device->maxapplication++; | |
160 | ||
161 | return 0; | |
162 | } | |
163 | ||
164 | /* | |
165 | * Close a collection. | |
166 | */ | |
167 | ||
168 | static int close_collection(struct hid_parser *parser) | |
169 | { | |
170 | if (!parser->collection_stack_ptr) { | |
171 | dbg("collection stack underflow"); | |
172 | return -1; | |
173 | } | |
174 | parser->collection_stack_ptr--; | |
175 | return 0; | |
176 | } | |
177 | ||
178 | /* | |
179 | * Climb up the stack, search for the specified collection type | |
180 | * and return the usage. | |
181 | */ | |
182 | ||
183 | static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type) | |
184 | { | |
185 | int n; | |
186 | for (n = parser->collection_stack_ptr - 1; n >= 0; n--) | |
187 | if (parser->device->collection[parser->collection_stack[n]].type == type) | |
188 | return parser->device->collection[parser->collection_stack[n]].usage; | |
189 | return 0; /* we know nothing about this usage type */ | |
190 | } | |
191 | ||
192 | /* | |
193 | * Add a usage to the temporary parser table. | |
194 | */ | |
195 | ||
196 | static int hid_add_usage(struct hid_parser *parser, unsigned usage) | |
197 | { | |
198 | if (parser->local.usage_index >= HID_MAX_USAGES) { | |
199 | dbg("usage index exceeded"); | |
200 | return -1; | |
201 | } | |
202 | parser->local.usage[parser->local.usage_index] = usage; | |
203 | parser->local.collection_index[parser->local.usage_index] = | |
204 | parser->collection_stack_ptr ? | |
205 | parser->collection_stack[parser->collection_stack_ptr - 1] : 0; | |
206 | parser->local.usage_index++; | |
207 | return 0; | |
208 | } | |
209 | ||
210 | /* | |
211 | * Register a new field for this report. | |
212 | */ | |
213 | ||
214 | static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags) | |
215 | { | |
216 | struct hid_report *report; | |
217 | struct hid_field *field; | |
218 | int usages; | |
219 | unsigned offset; | |
220 | int i; | |
221 | ||
222 | if (!(report = hid_register_report(parser->device, report_type, parser->global.report_id))) { | |
223 | dbg("hid_register_report failed"); | |
224 | return -1; | |
225 | } | |
226 | ||
227 | if (parser->global.logical_maximum < parser->global.logical_minimum) { | |
228 | dbg("logical range invalid %d %d", parser->global.logical_minimum, parser->global.logical_maximum); | |
229 | return -1; | |
230 | } | |
231 | ||
232 | offset = report->size; | |
233 | report->size += parser->global.report_size * parser->global.report_count; | |
234 | ||
235 | if (!parser->local.usage_index) /* Ignore padding fields */ | |
05f091ab | 236 | return 0; |
1da177e4 LT |
237 | |
238 | usages = max_t(int, parser->local.usage_index, parser->global.report_count); | |
239 | ||
240 | if ((field = hid_register_field(report, usages, parser->global.report_count)) == NULL) | |
241 | return 0; | |
242 | ||
243 | field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL); | |
244 | field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL); | |
245 | field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION); | |
246 | ||
247 | for (i = 0; i < usages; i++) { | |
248 | int j = i; | |
249 | /* Duplicate the last usage we parsed if we have excess values */ | |
250 | if (i >= parser->local.usage_index) | |
251 | j = parser->local.usage_index - 1; | |
252 | field->usage[i].hid = parser->local.usage[j]; | |
253 | field->usage[i].collection_index = | |
254 | parser->local.collection_index[j]; | |
255 | } | |
256 | ||
257 | field->maxusage = usages; | |
258 | field->flags = flags; | |
259 | field->report_offset = offset; | |
260 | field->report_type = report_type; | |
261 | field->report_size = parser->global.report_size; | |
262 | field->report_count = parser->global.report_count; | |
263 | field->logical_minimum = parser->global.logical_minimum; | |
264 | field->logical_maximum = parser->global.logical_maximum; | |
265 | field->physical_minimum = parser->global.physical_minimum; | |
266 | field->physical_maximum = parser->global.physical_maximum; | |
267 | field->unit_exponent = parser->global.unit_exponent; | |
268 | field->unit = parser->global.unit; | |
269 | ||
270 | return 0; | |
271 | } | |
272 | ||
273 | /* | |
274 | * Read data value from item. | |
275 | */ | |
276 | ||
277 | static __inline__ __u32 item_udata(struct hid_item *item) | |
278 | { | |
279 | switch (item->size) { | |
280 | case 1: return item->data.u8; | |
281 | case 2: return item->data.u16; | |
282 | case 4: return item->data.u32; | |
283 | } | |
284 | return 0; | |
285 | } | |
286 | ||
287 | static __inline__ __s32 item_sdata(struct hid_item *item) | |
288 | { | |
289 | switch (item->size) { | |
290 | case 1: return item->data.s8; | |
291 | case 2: return item->data.s16; | |
292 | case 4: return item->data.s32; | |
293 | } | |
294 | return 0; | |
295 | } | |
296 | ||
297 | /* | |
298 | * Process a global item. | |
299 | */ | |
300 | ||
301 | static int hid_parser_global(struct hid_parser *parser, struct hid_item *item) | |
302 | { | |
303 | switch (item->tag) { | |
304 | ||
305 | case HID_GLOBAL_ITEM_TAG_PUSH: | |
306 | ||
307 | if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) { | |
308 | dbg("global enviroment stack overflow"); | |
309 | return -1; | |
310 | } | |
311 | ||
312 | memcpy(parser->global_stack + parser->global_stack_ptr++, | |
313 | &parser->global, sizeof(struct hid_global)); | |
314 | return 0; | |
315 | ||
316 | case HID_GLOBAL_ITEM_TAG_POP: | |
317 | ||
318 | if (!parser->global_stack_ptr) { | |
319 | dbg("global enviroment stack underflow"); | |
320 | return -1; | |
321 | } | |
322 | ||
323 | memcpy(&parser->global, parser->global_stack + --parser->global_stack_ptr, | |
324 | sizeof(struct hid_global)); | |
325 | return 0; | |
326 | ||
327 | case HID_GLOBAL_ITEM_TAG_USAGE_PAGE: | |
328 | parser->global.usage_page = item_udata(item); | |
329 | return 0; | |
330 | ||
331 | case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM: | |
332 | parser->global.logical_minimum = item_sdata(item); | |
333 | return 0; | |
334 | ||
335 | case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM: | |
336 | if (parser->global.logical_minimum < 0) | |
337 | parser->global.logical_maximum = item_sdata(item); | |
338 | else | |
339 | parser->global.logical_maximum = item_udata(item); | |
340 | return 0; | |
341 | ||
342 | case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM: | |
343 | parser->global.physical_minimum = item_sdata(item); | |
344 | return 0; | |
345 | ||
346 | case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM: | |
347 | if (parser->global.physical_minimum < 0) | |
348 | parser->global.physical_maximum = item_sdata(item); | |
349 | else | |
350 | parser->global.physical_maximum = item_udata(item); | |
351 | return 0; | |
352 | ||
353 | case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT: | |
354 | parser->global.unit_exponent = item_sdata(item); | |
355 | return 0; | |
356 | ||
357 | case HID_GLOBAL_ITEM_TAG_UNIT: | |
358 | parser->global.unit = item_udata(item); | |
359 | return 0; | |
360 | ||
361 | case HID_GLOBAL_ITEM_TAG_REPORT_SIZE: | |
362 | if ((parser->global.report_size = item_udata(item)) > 32) { | |
363 | dbg("invalid report_size %d", parser->global.report_size); | |
364 | return -1; | |
365 | } | |
366 | return 0; | |
367 | ||
368 | case HID_GLOBAL_ITEM_TAG_REPORT_COUNT: | |
369 | if ((parser->global.report_count = item_udata(item)) > HID_MAX_USAGES) { | |
370 | dbg("invalid report_count %d", parser->global.report_count); | |
371 | return -1; | |
372 | } | |
373 | return 0; | |
374 | ||
375 | case HID_GLOBAL_ITEM_TAG_REPORT_ID: | |
376 | if ((parser->global.report_id = item_udata(item)) == 0) { | |
377 | dbg("report_id 0 is invalid"); | |
378 | return -1; | |
379 | } | |
380 | return 0; | |
381 | ||
382 | default: | |
383 | dbg("unknown global tag 0x%x", item->tag); | |
384 | return -1; | |
385 | } | |
386 | } | |
387 | ||
388 | /* | |
389 | * Process a local item. | |
390 | */ | |
391 | ||
392 | static int hid_parser_local(struct hid_parser *parser, struct hid_item *item) | |
393 | { | |
394 | __u32 data; | |
395 | unsigned n; | |
396 | ||
397 | if (item->size == 0) { | |
398 | dbg("item data expected for local item"); | |
399 | return -1; | |
400 | } | |
401 | ||
402 | data = item_udata(item); | |
403 | ||
404 | switch (item->tag) { | |
405 | ||
406 | case HID_LOCAL_ITEM_TAG_DELIMITER: | |
407 | ||
408 | if (data) { | |
409 | /* | |
410 | * We treat items before the first delimiter | |
411 | * as global to all usage sets (branch 0). | |
412 | * In the moment we process only these global | |
413 | * items and the first delimiter set. | |
414 | */ | |
415 | if (parser->local.delimiter_depth != 0) { | |
416 | dbg("nested delimiters"); | |
417 | return -1; | |
418 | } | |
419 | parser->local.delimiter_depth++; | |
420 | parser->local.delimiter_branch++; | |
421 | } else { | |
422 | if (parser->local.delimiter_depth < 1) { | |
423 | dbg("bogus close delimiter"); | |
424 | return -1; | |
425 | } | |
426 | parser->local.delimiter_depth--; | |
427 | } | |
428 | return 1; | |
429 | ||
430 | case HID_LOCAL_ITEM_TAG_USAGE: | |
431 | ||
432 | if (parser->local.delimiter_branch > 1) { | |
433 | dbg("alternative usage ignored"); | |
434 | return 0; | |
435 | } | |
436 | ||
437 | if (item->size <= 2) | |
438 | data = (parser->global.usage_page << 16) + data; | |
439 | ||
440 | return hid_add_usage(parser, data); | |
441 | ||
442 | case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM: | |
443 | ||
444 | if (parser->local.delimiter_branch > 1) { | |
445 | dbg("alternative usage ignored"); | |
446 | return 0; | |
447 | } | |
448 | ||
449 | if (item->size <= 2) | |
450 | data = (parser->global.usage_page << 16) + data; | |
451 | ||
452 | parser->local.usage_minimum = data; | |
453 | return 0; | |
454 | ||
455 | case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM: | |
456 | ||
457 | if (parser->local.delimiter_branch > 1) { | |
458 | dbg("alternative usage ignored"); | |
459 | return 0; | |
460 | } | |
461 | ||
462 | if (item->size <= 2) | |
463 | data = (parser->global.usage_page << 16) + data; | |
464 | ||
465 | for (n = parser->local.usage_minimum; n <= data; n++) | |
466 | if (hid_add_usage(parser, n)) { | |
467 | dbg("hid_add_usage failed\n"); | |
468 | return -1; | |
469 | } | |
470 | return 0; | |
471 | ||
472 | default: | |
473 | ||
474 | dbg("unknown local item tag 0x%x", item->tag); | |
475 | return 0; | |
476 | } | |
477 | return 0; | |
478 | } | |
479 | ||
480 | /* | |
481 | * Process a main item. | |
482 | */ | |
483 | ||
484 | static int hid_parser_main(struct hid_parser *parser, struct hid_item *item) | |
485 | { | |
486 | __u32 data; | |
487 | int ret; | |
488 | ||
489 | data = item_udata(item); | |
490 | ||
491 | switch (item->tag) { | |
492 | case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION: | |
493 | ret = open_collection(parser, data & 0xff); | |
494 | break; | |
495 | case HID_MAIN_ITEM_TAG_END_COLLECTION: | |
496 | ret = close_collection(parser); | |
497 | break; | |
498 | case HID_MAIN_ITEM_TAG_INPUT: | |
499 | ret = hid_add_field(parser, HID_INPUT_REPORT, data); | |
500 | break; | |
501 | case HID_MAIN_ITEM_TAG_OUTPUT: | |
502 | ret = hid_add_field(parser, HID_OUTPUT_REPORT, data); | |
503 | break; | |
504 | case HID_MAIN_ITEM_TAG_FEATURE: | |
505 | ret = hid_add_field(parser, HID_FEATURE_REPORT, data); | |
506 | break; | |
507 | default: | |
508 | dbg("unknown main item tag 0x%x", item->tag); | |
509 | ret = 0; | |
510 | } | |
511 | ||
512 | memset(&parser->local, 0, sizeof(parser->local)); /* Reset the local parser environment */ | |
513 | ||
514 | return ret; | |
515 | } | |
516 | ||
517 | /* | |
518 | * Process a reserved item. | |
519 | */ | |
520 | ||
521 | static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item) | |
522 | { | |
523 | dbg("reserved item type, tag 0x%x", item->tag); | |
524 | return 0; | |
525 | } | |
526 | ||
527 | /* | |
528 | * Free a report and all registered fields. The field->usage and | |
529 | * field->value table's are allocated behind the field, so we need | |
530 | * only to free(field) itself. | |
531 | */ | |
532 | ||
533 | static void hid_free_report(struct hid_report *report) | |
534 | { | |
535 | unsigned n; | |
536 | ||
537 | for (n = 0; n < report->maxfield; n++) | |
538 | kfree(report->field[n]); | |
539 | kfree(report); | |
540 | } | |
541 | ||
542 | /* | |
543 | * Free a device structure, all reports, and all fields. | |
544 | */ | |
545 | ||
546 | static void hid_free_device(struct hid_device *device) | |
547 | { | |
548 | unsigned i,j; | |
549 | ||
550 | hid_ff_exit(device); | |
551 | ||
552 | for (i = 0; i < HID_REPORT_TYPES; i++) { | |
553 | struct hid_report_enum *report_enum = device->report_enum + i; | |
554 | ||
555 | for (j = 0; j < 256; j++) { | |
556 | struct hid_report *report = report_enum->report_id_hash[j]; | |
557 | if (report) | |
558 | hid_free_report(report); | |
559 | } | |
560 | } | |
561 | ||
1bc3c9e1 | 562 | kfree(device->rdesc); |
1da177e4 LT |
563 | kfree(device); |
564 | } | |
565 | ||
566 | /* | |
567 | * Fetch a report description item from the data stream. We support long | |
568 | * items, though they are not used yet. | |
569 | */ | |
570 | ||
571 | static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item) | |
572 | { | |
573 | u8 b; | |
574 | ||
575 | if ((end - start) <= 0) | |
576 | return NULL; | |
577 | ||
578 | b = *start++; | |
579 | ||
580 | item->type = (b >> 2) & 3; | |
581 | item->tag = (b >> 4) & 15; | |
582 | ||
583 | if (item->tag == HID_ITEM_TAG_LONG) { | |
584 | ||
585 | item->format = HID_ITEM_FORMAT_LONG; | |
586 | ||
587 | if ((end - start) < 2) | |
588 | return NULL; | |
589 | ||
590 | item->size = *start++; | |
591 | item->tag = *start++; | |
592 | ||
593 | if ((end - start) < item->size) | |
594 | return NULL; | |
595 | ||
596 | item->data.longdata = start; | |
597 | start += item->size; | |
598 | return start; | |
599 | } | |
600 | ||
601 | item->format = HID_ITEM_FORMAT_SHORT; | |
602 | item->size = b & 3; | |
603 | ||
604 | switch (item->size) { | |
605 | ||
606 | case 0: | |
607 | return start; | |
608 | ||
609 | case 1: | |
610 | if ((end - start) < 1) | |
611 | return NULL; | |
612 | item->data.u8 = *start++; | |
613 | return start; | |
614 | ||
615 | case 2: | |
616 | if ((end - start) < 2) | |
617 | return NULL; | |
618 | item->data.u16 = le16_to_cpu(get_unaligned((__le16*)start)); | |
619 | start = (__u8 *)((__le16 *)start + 1); | |
620 | return start; | |
621 | ||
622 | case 3: | |
623 | item->size++; | |
624 | if ((end - start) < 4) | |
625 | return NULL; | |
626 | item->data.u32 = le32_to_cpu(get_unaligned((__le32*)start)); | |
627 | start = (__u8 *)((__le32 *)start + 1); | |
628 | return start; | |
629 | } | |
630 | ||
631 | return NULL; | |
632 | } | |
633 | ||
634 | /* | |
635 | * Parse a report description into a hid_device structure. Reports are | |
636 | * enumerated, fields are attached to these reports. | |
637 | */ | |
638 | ||
639 | static struct hid_device *hid_parse_report(__u8 *start, unsigned size) | |
640 | { | |
641 | struct hid_device *device; | |
642 | struct hid_parser *parser; | |
643 | struct hid_item item; | |
644 | __u8 *end; | |
645 | unsigned i; | |
646 | static int (*dispatch_type[])(struct hid_parser *parser, | |
647 | struct hid_item *item) = { | |
648 | hid_parser_main, | |
649 | hid_parser_global, | |
650 | hid_parser_local, | |
651 | hid_parser_reserved | |
652 | }; | |
653 | ||
654 | if (!(device = kmalloc(sizeof(struct hid_device), GFP_KERNEL))) | |
655 | return NULL; | |
656 | memset(device, 0, sizeof(struct hid_device)); | |
657 | ||
658 | if (!(device->collection = kmalloc(sizeof(struct hid_collection) * | |
659 | HID_DEFAULT_NUM_COLLECTIONS, GFP_KERNEL))) { | |
660 | kfree(device); | |
661 | return NULL; | |
662 | } | |
663 | memset(device->collection, 0, sizeof(struct hid_collection) * | |
664 | HID_DEFAULT_NUM_COLLECTIONS); | |
665 | device->collection_size = HID_DEFAULT_NUM_COLLECTIONS; | |
666 | ||
667 | for (i = 0; i < HID_REPORT_TYPES; i++) | |
668 | INIT_LIST_HEAD(&device->report_enum[i].report_list); | |
669 | ||
670 | if (!(device->rdesc = (__u8 *)kmalloc(size, GFP_KERNEL))) { | |
671 | kfree(device->collection); | |
672 | kfree(device); | |
673 | return NULL; | |
674 | } | |
675 | memcpy(device->rdesc, start, size); | |
676 | device->rsize = size; | |
677 | ||
678 | if (!(parser = kmalloc(sizeof(struct hid_parser), GFP_KERNEL))) { | |
679 | kfree(device->rdesc); | |
680 | kfree(device->collection); | |
681 | kfree(device); | |
682 | return NULL; | |
683 | } | |
684 | memset(parser, 0, sizeof(struct hid_parser)); | |
685 | parser->device = device; | |
686 | ||
687 | end = start + size; | |
688 | while ((start = fetch_item(start, end, &item)) != NULL) { | |
689 | ||
690 | if (item.format != HID_ITEM_FORMAT_SHORT) { | |
691 | dbg("unexpected long global item"); | |
692 | kfree(device->collection); | |
693 | hid_free_device(device); | |
694 | kfree(parser); | |
695 | return NULL; | |
696 | } | |
697 | ||
698 | if (dispatch_type[item.type](parser, &item)) { | |
699 | dbg("item %u %u %u %u parsing failed\n", | |
700 | item.format, (unsigned)item.size, (unsigned)item.type, (unsigned)item.tag); | |
701 | kfree(device->collection); | |
702 | hid_free_device(device); | |
703 | kfree(parser); | |
704 | return NULL; | |
705 | } | |
706 | ||
707 | if (start == end) { | |
708 | if (parser->collection_stack_ptr) { | |
709 | dbg("unbalanced collection at end of report description"); | |
710 | kfree(device->collection); | |
711 | hid_free_device(device); | |
712 | kfree(parser); | |
713 | return NULL; | |
714 | } | |
715 | if (parser->local.delimiter_depth) { | |
716 | dbg("unbalanced delimiter at end of report description"); | |
717 | kfree(device->collection); | |
718 | hid_free_device(device); | |
719 | kfree(parser); | |
720 | return NULL; | |
721 | } | |
722 | kfree(parser); | |
723 | return device; | |
724 | } | |
725 | } | |
726 | ||
727 | dbg("item fetching failed at offset %d\n", (int)(end - start)); | |
728 | kfree(device->collection); | |
729 | hid_free_device(device); | |
730 | kfree(parser); | |
731 | return NULL; | |
732 | } | |
733 | ||
734 | /* | |
735 | * Convert a signed n-bit integer to signed 32-bit integer. Common | |
736 | * cases are done through the compiler, the screwed things has to be | |
737 | * done by hand. | |
738 | */ | |
739 | ||
740 | static __inline__ __s32 snto32(__u32 value, unsigned n) | |
741 | { | |
742 | switch (n) { | |
743 | case 8: return ((__s8)value); | |
744 | case 16: return ((__s16)value); | |
745 | case 32: return ((__s32)value); | |
746 | } | |
747 | return value & (1 << (n - 1)) ? value | (-1 << n) : value; | |
748 | } | |
749 | ||
750 | /* | |
751 | * Convert a signed 32-bit integer to a signed n-bit integer. | |
752 | */ | |
753 | ||
754 | static __inline__ __u32 s32ton(__s32 value, unsigned n) | |
755 | { | |
756 | __s32 a = value >> (n - 1); | |
757 | if (a && a != -1) | |
758 | return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1; | |
759 | return value & ((1 << n) - 1); | |
760 | } | |
761 | ||
762 | /* | |
763 | * Extract/implement a data field from/to a report. | |
764 | */ | |
765 | ||
766 | static __inline__ __u32 extract(__u8 *report, unsigned offset, unsigned n) | |
767 | { | |
768 | report += (offset >> 5) << 2; offset &= 31; | |
bef3768d | 769 | return (le64_to_cpu(get_unaligned((__le64*)report)) >> offset) & ((1ULL << n) - 1); |
1da177e4 LT |
770 | } |
771 | ||
772 | static __inline__ void implement(__u8 *report, unsigned offset, unsigned n, __u32 value) | |
773 | { | |
774 | report += (offset >> 5) << 2; offset &= 31; | |
775 | put_unaligned((get_unaligned((__le64*)report) | |
776 | & cpu_to_le64(~((((__u64) 1 << n) - 1) << offset))) | |
777 | | cpu_to_le64((__u64)value << offset), (__le64*)report); | |
778 | } | |
779 | ||
780 | /* | |
781 | * Search an array for a value. | |
782 | */ | |
783 | ||
784 | static __inline__ int search(__s32 *array, __s32 value, unsigned n) | |
785 | { | |
786 | while (n--) { | |
787 | if (*array++ == value) | |
788 | return 0; | |
789 | } | |
790 | return -1; | |
791 | } | |
792 | ||
bc5d0482 | 793 | static void hid_process_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value, int interrupt, struct pt_regs *regs) |
1da177e4 LT |
794 | { |
795 | hid_dump_input(usage, value); | |
796 | if (hid->claimed & HID_CLAIMED_INPUT) | |
797 | hidinput_hid_event(hid, field, usage, value, regs); | |
bc5d0482 | 798 | if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt) |
1da177e4 LT |
799 | hiddev_hid_event(hid, field, usage, value, regs); |
800 | } | |
801 | ||
802 | /* | |
803 | * Analyse a received field, and fetch the data from it. The field | |
804 | * content is stored for next report processing (we do differential | |
805 | * reporting to the layer). | |
806 | */ | |
807 | ||
bc5d0482 | 808 | static void hid_input_field(struct hid_device *hid, struct hid_field *field, __u8 *data, int interrupt, struct pt_regs *regs) |
1da177e4 LT |
809 | { |
810 | unsigned n; | |
811 | unsigned count = field->report_count; | |
812 | unsigned offset = field->report_offset; | |
813 | unsigned size = field->report_size; | |
814 | __s32 min = field->logical_minimum; | |
815 | __s32 max = field->logical_maximum; | |
816 | __s32 *value; | |
817 | ||
818 | if (!(value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC))) | |
819 | return; | |
820 | ||
821 | for (n = 0; n < count; n++) { | |
822 | ||
823 | value[n] = min < 0 ? snto32(extract(data, offset + n * size, size), size) : | |
824 | extract(data, offset + n * size, size); | |
825 | ||
826 | if (!(field->flags & HID_MAIN_ITEM_VARIABLE) /* Ignore report if ErrorRollOver */ | |
827 | && value[n] >= min && value[n] <= max | |
828 | && field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1) | |
829 | goto exit; | |
830 | } | |
831 | ||
832 | for (n = 0; n < count; n++) { | |
833 | ||
834 | if (HID_MAIN_ITEM_VARIABLE & field->flags) { | |
bc5d0482 | 835 | hid_process_event(hid, field, &field->usage[n], value[n], interrupt, regs); |
1da177e4 LT |
836 | continue; |
837 | } | |
838 | ||
839 | if (field->value[n] >= min && field->value[n] <= max | |
840 | && field->usage[field->value[n] - min].hid | |
841 | && search(value, field->value[n], count)) | |
bc5d0482 | 842 | hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt, regs); |
1da177e4 LT |
843 | |
844 | if (value[n] >= min && value[n] <= max | |
845 | && field->usage[value[n] - min].hid | |
846 | && search(field->value, value[n], count)) | |
bc5d0482 | 847 | hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt, regs); |
1da177e4 LT |
848 | } |
849 | ||
850 | memcpy(field->value, value, count * sizeof(__s32)); | |
851 | exit: | |
852 | kfree(value); | |
853 | } | |
854 | ||
bc5d0482 | 855 | static int hid_input_report(int type, struct urb *urb, int interrupt, struct pt_regs *regs) |
1da177e4 LT |
856 | { |
857 | struct hid_device *hid = urb->context; | |
858 | struct hid_report_enum *report_enum = hid->report_enum + type; | |
859 | u8 *data = urb->transfer_buffer; | |
860 | int len = urb->actual_length; | |
861 | struct hid_report *report; | |
862 | int n, size; | |
863 | ||
864 | if (!len) { | |
865 | dbg("empty report"); | |
866 | return -1; | |
867 | } | |
868 | ||
869 | #ifdef DEBUG_DATA | |
870 | printk(KERN_DEBUG __FILE__ ": report (size %u) (%snumbered)\n", len, report_enum->numbered ? "" : "un"); | |
871 | #endif | |
872 | ||
873 | n = 0; /* Normally report number is 0 */ | |
874 | if (report_enum->numbered) { /* Device uses numbered reports, data[0] is report number */ | |
875 | n = *data++; | |
876 | len--; | |
877 | } | |
878 | ||
879 | #ifdef DEBUG_DATA | |
880 | { | |
881 | int i; | |
882 | printk(KERN_DEBUG __FILE__ ": report %d (size %u) = ", n, len); | |
883 | for (i = 0; i < len; i++) | |
884 | printk(" %02x", data[i]); | |
885 | printk("\n"); | |
886 | } | |
887 | #endif | |
888 | ||
889 | if (!(report = report_enum->report_id_hash[n])) { | |
890 | dbg("undefined report_id %d received", n); | |
891 | return -1; | |
892 | } | |
893 | ||
894 | size = ((report->size - 1) >> 3) + 1; | |
895 | ||
cd610457 | 896 | if (len < size) { |
1da177e4 | 897 | dbg("report %d is too short, (%d < %d)", report->id, len, size); |
cd610457 AK |
898 | memset(data + len, 0, size - len); |
899 | } | |
1da177e4 LT |
900 | |
901 | if (hid->claimed & HID_CLAIMED_HIDDEV) | |
902 | hiddev_report_event(hid, report); | |
903 | ||
904 | for (n = 0; n < report->maxfield; n++) | |
bc5d0482 | 905 | hid_input_field(hid, report->field[n], data, interrupt, regs); |
1da177e4 LT |
906 | |
907 | if (hid->claimed & HID_CLAIMED_INPUT) | |
908 | hidinput_report_event(hid, report); | |
909 | ||
910 | return 0; | |
911 | } | |
912 | ||
913 | /* | |
914 | * Input interrupt completion handler. | |
915 | */ | |
916 | ||
917 | static void hid_irq_in(struct urb *urb, struct pt_regs *regs) | |
918 | { | |
919 | struct hid_device *hid = urb->context; | |
920 | int status; | |
921 | ||
922 | switch (urb->status) { | |
923 | case 0: /* success */ | |
bc5d0482 | 924 | hid_input_report(HID_INPUT_REPORT, urb, 1, regs); |
1da177e4 LT |
925 | break; |
926 | case -ECONNRESET: /* unlink */ | |
927 | case -ENOENT: | |
928 | case -EPERM: | |
929 | case -ESHUTDOWN: /* unplug */ | |
930 | case -EILSEQ: /* unplug timeout on uhci */ | |
931 | return; | |
932 | case -ETIMEDOUT: /* NAK */ | |
933 | break; | |
934 | default: /* error */ | |
935 | warn("input irq status %d received", urb->status); | |
936 | } | |
937 | ||
938 | status = usb_submit_urb(urb, SLAB_ATOMIC); | |
939 | if (status) | |
940 | err("can't resubmit intr, %s-%s/input%d, status %d", | |
941 | hid->dev->bus->bus_name, hid->dev->devpath, | |
942 | hid->ifnum, status); | |
943 | } | |
944 | ||
945 | /* | |
946 | * Output the field into the report. | |
947 | */ | |
948 | ||
949 | static void hid_output_field(struct hid_field *field, __u8 *data) | |
950 | { | |
951 | unsigned count = field->report_count; | |
952 | unsigned offset = field->report_offset; | |
953 | unsigned size = field->report_size; | |
954 | unsigned n; | |
955 | ||
956 | for (n = 0; n < count; n++) { | |
957 | if (field->logical_minimum < 0) /* signed values */ | |
958 | implement(data, offset + n * size, size, s32ton(field->value[n], size)); | |
959 | else /* unsigned values */ | |
960 | implement(data, offset + n * size, size, field->value[n]); | |
961 | } | |
962 | } | |
963 | ||
964 | /* | |
965 | * Create a report. | |
966 | */ | |
967 | ||
968 | static void hid_output_report(struct hid_report *report, __u8 *data) | |
969 | { | |
970 | unsigned n; | |
971 | ||
972 | if (report->id > 0) | |
973 | *data++ = report->id; | |
974 | ||
975 | for (n = 0; n < report->maxfield; n++) | |
976 | hid_output_field(report->field[n], data); | |
977 | } | |
978 | ||
979 | /* | |
980 | * Set a field value. The report this field belongs to has to be | |
981 | * created and transferred to the device, to set this value in the | |
982 | * device. | |
983 | */ | |
984 | ||
985 | int hid_set_field(struct hid_field *field, unsigned offset, __s32 value) | |
986 | { | |
987 | unsigned size = field->report_size; | |
988 | ||
989 | hid_dump_input(field->usage + offset, value); | |
990 | ||
991 | if (offset >= field->report_count) { | |
992 | dbg("offset (%d) exceeds report_count (%d)", offset, field->report_count); | |
993 | hid_dump_field(field, 8); | |
994 | return -1; | |
995 | } | |
996 | if (field->logical_minimum < 0) { | |
997 | if (value != snto32(s32ton(value, size), size)) { | |
998 | dbg("value %d is out of range", value); | |
999 | return -1; | |
1000 | } | |
1001 | } | |
1002 | field->value[offset] = value; | |
1003 | return 0; | |
1004 | } | |
1005 | ||
1006 | /* | |
1007 | * Find a report field with a specified HID usage. | |
1008 | */ | |
1009 | ||
1010 | struct hid_field *hid_find_field_by_usage(struct hid_device *hid, __u32 wanted_usage, int type) | |
1011 | { | |
1012 | struct hid_report *report; | |
1013 | int i; | |
1014 | ||
1015 | list_for_each_entry(report, &hid->report_enum[type].report_list, list) | |
1016 | for (i = 0; i < report->maxfield; i++) | |
1017 | if (report->field[i]->logical == wanted_usage) | |
1018 | return report->field[i]; | |
1019 | return NULL; | |
1020 | } | |
1021 | ||
1022 | static int hid_submit_out(struct hid_device *hid) | |
1023 | { | |
1024 | struct hid_report *report; | |
1025 | ||
1026 | report = hid->out[hid->outtail]; | |
1027 | ||
1028 | hid_output_report(report, hid->outbuf); | |
1029 | hid->urbout->transfer_buffer_length = ((report->size - 1) >> 3) + 1 + (report->id > 0); | |
1030 | hid->urbout->dev = hid->dev; | |
1031 | ||
1032 | dbg("submitting out urb"); | |
1033 | ||
1034 | if (usb_submit_urb(hid->urbout, GFP_ATOMIC)) { | |
1035 | err("usb_submit_urb(out) failed"); | |
1036 | return -1; | |
1037 | } | |
1038 | ||
1039 | return 0; | |
1040 | } | |
1041 | ||
1042 | static int hid_submit_ctrl(struct hid_device *hid) | |
1043 | { | |
1044 | struct hid_report *report; | |
1045 | unsigned char dir; | |
1046 | int len; | |
1047 | ||
1048 | report = hid->ctrl[hid->ctrltail].report; | |
1049 | dir = hid->ctrl[hid->ctrltail].dir; | |
1050 | ||
1051 | len = ((report->size - 1) >> 3) + 1 + (report->id > 0); | |
1052 | if (dir == USB_DIR_OUT) { | |
1053 | hid_output_report(report, hid->ctrlbuf); | |
1054 | hid->urbctrl->pipe = usb_sndctrlpipe(hid->dev, 0); | |
1055 | hid->urbctrl->transfer_buffer_length = len; | |
1056 | } else { | |
1057 | int maxpacket, padlen; | |
1058 | ||
1059 | hid->urbctrl->pipe = usb_rcvctrlpipe(hid->dev, 0); | |
1060 | maxpacket = usb_maxpacket(hid->dev, hid->urbctrl->pipe, 0); | |
1061 | if (maxpacket > 0) { | |
1062 | padlen = (len + maxpacket - 1) / maxpacket; | |
1063 | padlen *= maxpacket; | |
bf0964dc MH |
1064 | if (padlen > hid->bufsize) |
1065 | padlen = hid->bufsize; | |
1da177e4 LT |
1066 | } else |
1067 | padlen = 0; | |
1068 | hid->urbctrl->transfer_buffer_length = padlen; | |
1069 | } | |
1070 | hid->urbctrl->dev = hid->dev; | |
1071 | ||
1072 | hid->cr->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE | dir; | |
1073 | hid->cr->bRequest = (dir == USB_DIR_OUT) ? HID_REQ_SET_REPORT : HID_REQ_GET_REPORT; | |
1074 | hid->cr->wValue = cpu_to_le16(((report->type + 1) << 8) | report->id); | |
1075 | hid->cr->wIndex = cpu_to_le16(hid->ifnum); | |
1076 | hid->cr->wLength = cpu_to_le16(len); | |
1077 | ||
1078 | dbg("submitting ctrl urb: %s wValue=0x%04x wIndex=0x%04x wLength=%u", | |
1079 | hid->cr->bRequest == HID_REQ_SET_REPORT ? "Set_Report" : "Get_Report", | |
1080 | hid->cr->wValue, hid->cr->wIndex, hid->cr->wLength); | |
1081 | ||
1082 | if (usb_submit_urb(hid->urbctrl, GFP_ATOMIC)) { | |
1083 | err("usb_submit_urb(ctrl) failed"); | |
1084 | return -1; | |
1085 | } | |
1086 | ||
1087 | return 0; | |
1088 | } | |
1089 | ||
1090 | /* | |
1091 | * Output interrupt completion handler. | |
1092 | */ | |
1093 | ||
1094 | static void hid_irq_out(struct urb *urb, struct pt_regs *regs) | |
1095 | { | |
1096 | struct hid_device *hid = urb->context; | |
1097 | unsigned long flags; | |
1098 | int unplug = 0; | |
1099 | ||
1100 | switch (urb->status) { | |
1101 | case 0: /* success */ | |
c4786ca8 | 1102 | break; |
1da177e4 LT |
1103 | case -ESHUTDOWN: /* unplug */ |
1104 | case -EILSEQ: /* unplug timeout on uhci */ | |
1105 | unplug = 1; | |
1106 | case -ECONNRESET: /* unlink */ | |
1107 | case -ENOENT: | |
1108 | break; | |
1109 | default: /* error */ | |
1110 | warn("output irq status %d received", urb->status); | |
1111 | } | |
1112 | ||
1113 | spin_lock_irqsave(&hid->outlock, flags); | |
1114 | ||
1115 | if (unplug) | |
1116 | hid->outtail = hid->outhead; | |
1117 | else | |
1118 | hid->outtail = (hid->outtail + 1) & (HID_OUTPUT_FIFO_SIZE - 1); | |
1119 | ||
1120 | if (hid->outhead != hid->outtail) { | |
1121 | if (hid_submit_out(hid)) { | |
1122 | clear_bit(HID_OUT_RUNNING, &hid->iofl);; | |
1123 | wake_up(&hid->wait); | |
1124 | } | |
1125 | spin_unlock_irqrestore(&hid->outlock, flags); | |
1126 | return; | |
1127 | } | |
1128 | ||
1129 | clear_bit(HID_OUT_RUNNING, &hid->iofl); | |
1130 | spin_unlock_irqrestore(&hid->outlock, flags); | |
1131 | wake_up(&hid->wait); | |
1132 | } | |
1133 | ||
1134 | /* | |
1135 | * Control pipe completion handler. | |
1136 | */ | |
1137 | ||
1138 | static void hid_ctrl(struct urb *urb, struct pt_regs *regs) | |
1139 | { | |
1140 | struct hid_device *hid = urb->context; | |
1141 | unsigned long flags; | |
1142 | int unplug = 0; | |
1143 | ||
1144 | spin_lock_irqsave(&hid->ctrllock, flags); | |
1145 | ||
1146 | switch (urb->status) { | |
1147 | case 0: /* success */ | |
1148 | if (hid->ctrl[hid->ctrltail].dir == USB_DIR_IN) | |
bc5d0482 | 1149 | hid_input_report(hid->ctrl[hid->ctrltail].report->type, urb, 0, regs); |
c4786ca8 | 1150 | break; |
1da177e4 LT |
1151 | case -ESHUTDOWN: /* unplug */ |
1152 | case -EILSEQ: /* unplug timectrl on uhci */ | |
1153 | unplug = 1; | |
1154 | case -ECONNRESET: /* unlink */ | |
1155 | case -ENOENT: | |
1156 | case -EPIPE: /* report not available */ | |
1157 | break; | |
1158 | default: /* error */ | |
1159 | warn("ctrl urb status %d received", urb->status); | |
1160 | } | |
1161 | ||
1162 | if (unplug) | |
1163 | hid->ctrltail = hid->ctrlhead; | |
1164 | else | |
1165 | hid->ctrltail = (hid->ctrltail + 1) & (HID_CONTROL_FIFO_SIZE - 1); | |
1166 | ||
1167 | if (hid->ctrlhead != hid->ctrltail) { | |
1168 | if (hid_submit_ctrl(hid)) { | |
1169 | clear_bit(HID_CTRL_RUNNING, &hid->iofl); | |
1170 | wake_up(&hid->wait); | |
1171 | } | |
1172 | spin_unlock_irqrestore(&hid->ctrllock, flags); | |
1173 | return; | |
1174 | } | |
1175 | ||
1176 | clear_bit(HID_CTRL_RUNNING, &hid->iofl); | |
1177 | spin_unlock_irqrestore(&hid->ctrllock, flags); | |
1178 | wake_up(&hid->wait); | |
1179 | } | |
1180 | ||
1181 | void hid_submit_report(struct hid_device *hid, struct hid_report *report, unsigned char dir) | |
1182 | { | |
1183 | int head; | |
1184 | unsigned long flags; | |
1185 | ||
1186 | if ((hid->quirks & HID_QUIRK_NOGET) && dir == USB_DIR_IN) | |
1187 | return; | |
1188 | ||
1189 | if (hid->urbout && dir == USB_DIR_OUT && report->type == HID_OUTPUT_REPORT) { | |
1190 | ||
1191 | spin_lock_irqsave(&hid->outlock, flags); | |
1192 | ||
1193 | if ((head = (hid->outhead + 1) & (HID_OUTPUT_FIFO_SIZE - 1)) == hid->outtail) { | |
1194 | spin_unlock_irqrestore(&hid->outlock, flags); | |
1195 | warn("output queue full"); | |
1196 | return; | |
1197 | } | |
1198 | ||
1199 | hid->out[hid->outhead] = report; | |
1200 | hid->outhead = head; | |
1201 | ||
1202 | if (!test_and_set_bit(HID_OUT_RUNNING, &hid->iofl)) | |
1203 | if (hid_submit_out(hid)) | |
1204 | clear_bit(HID_OUT_RUNNING, &hid->iofl); | |
1205 | ||
1206 | spin_unlock_irqrestore(&hid->outlock, flags); | |
1207 | return; | |
1208 | } | |
1209 | ||
1210 | spin_lock_irqsave(&hid->ctrllock, flags); | |
1211 | ||
1212 | if ((head = (hid->ctrlhead + 1) & (HID_CONTROL_FIFO_SIZE - 1)) == hid->ctrltail) { | |
1213 | spin_unlock_irqrestore(&hid->ctrllock, flags); | |
1214 | warn("control queue full"); | |
1215 | return; | |
1216 | } | |
1217 | ||
1218 | hid->ctrl[hid->ctrlhead].report = report; | |
1219 | hid->ctrl[hid->ctrlhead].dir = dir; | |
1220 | hid->ctrlhead = head; | |
1221 | ||
1222 | if (!test_and_set_bit(HID_CTRL_RUNNING, &hid->iofl)) | |
1223 | if (hid_submit_ctrl(hid)) | |
1224 | clear_bit(HID_CTRL_RUNNING, &hid->iofl); | |
1225 | ||
1226 | spin_unlock_irqrestore(&hid->ctrllock, flags); | |
1227 | } | |
1228 | ||
1229 | int hid_wait_io(struct hid_device *hid) | |
1230 | { | |
1231 | if (!wait_event_timeout(hid->wait, (!test_bit(HID_CTRL_RUNNING, &hid->iofl) && | |
1232 | !test_bit(HID_OUT_RUNNING, &hid->iofl)), | |
1233 | 10*HZ)) { | |
1234 | dbg("timeout waiting for ctrl or out queue to clear"); | |
1235 | return -1; | |
1236 | } | |
1237 | ||
1238 | return 0; | |
1239 | } | |
1240 | ||
854561b0 VP |
1241 | static int hid_set_idle(struct usb_device *dev, int ifnum, int report, int idle) |
1242 | { | |
71387bd7 | 1243 | return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
854561b0 VP |
1244 | HID_REQ_SET_IDLE, USB_TYPE_CLASS | USB_RECIP_INTERFACE, (idle << 8) | report, |
1245 | ifnum, NULL, 0, USB_CTRL_SET_TIMEOUT); | |
1246 | } | |
1247 | ||
1da177e4 LT |
1248 | static int hid_get_class_descriptor(struct usb_device *dev, int ifnum, |
1249 | unsigned char type, void *buf, int size) | |
1250 | { | |
1251 | int result, retries = 4; | |
1252 | ||
1253 | memset(buf,0,size); // Make sure we parse really received data | |
1254 | ||
1255 | do { | |
1256 | result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
1257 | USB_REQ_GET_DESCRIPTOR, USB_RECIP_INTERFACE | USB_DIR_IN, | |
1258 | (type << 8), ifnum, buf, size, USB_CTRL_GET_TIMEOUT); | |
1259 | retries--; | |
1260 | } while (result < size && retries); | |
1261 | return result; | |
1262 | } | |
1263 | ||
1264 | int hid_open(struct hid_device *hid) | |
1265 | { | |
1266 | if (hid->open++) | |
1267 | return 0; | |
1268 | ||
1269 | hid->urbin->dev = hid->dev; | |
1270 | ||
1271 | if (usb_submit_urb(hid->urbin, GFP_KERNEL)) | |
1272 | return -EIO; | |
1273 | ||
1274 | return 0; | |
1275 | } | |
1276 | ||
1277 | void hid_close(struct hid_device *hid) | |
1278 | { | |
1279 | if (!--hid->open) | |
1280 | usb_kill_urb(hid->urbin); | |
1281 | } | |
1282 | ||
1283 | /* | |
1284 | * Initialize all reports | |
1285 | */ | |
1286 | ||
1287 | void hid_init_reports(struct hid_device *hid) | |
1288 | { | |
1289 | struct hid_report *report; | |
1290 | int err, ret; | |
1291 | ||
bf0964dc | 1292 | list_for_each_entry(report, &hid->report_enum[HID_INPUT_REPORT].report_list, list) |
1da177e4 | 1293 | hid_submit_report(hid, report, USB_DIR_IN); |
1da177e4 LT |
1294 | |
1295 | list_for_each_entry(report, &hid->report_enum[HID_FEATURE_REPORT].report_list, list) | |
1296 | hid_submit_report(hid, report, USB_DIR_IN); | |
1297 | ||
1298 | err = 0; | |
1299 | ret = hid_wait_io(hid); | |
1300 | while (ret) { | |
1301 | err |= ret; | |
1302 | if (test_bit(HID_CTRL_RUNNING, &hid->iofl)) | |
1303 | usb_kill_urb(hid->urbctrl); | |
1304 | if (test_bit(HID_OUT_RUNNING, &hid->iofl)) | |
1305 | usb_kill_urb(hid->urbout); | |
1306 | ret = hid_wait_io(hid); | |
1307 | } | |
1308 | ||
1309 | if (err) | |
de289fdf | 1310 | warn("timeout initializing reports"); |
1da177e4 LT |
1311 | } |
1312 | ||
1313 | #define USB_VENDOR_ID_WACOM 0x056a | |
1314 | #define USB_DEVICE_ID_WACOM_PENPARTNER 0x0000 | |
1315 | #define USB_DEVICE_ID_WACOM_GRAPHIRE 0x0010 | |
1316 | #define USB_DEVICE_ID_WACOM_INTUOS 0x0020 | |
1317 | #define USB_DEVICE_ID_WACOM_PL 0x0030 | |
1318 | #define USB_DEVICE_ID_WACOM_INTUOS2 0x0040 | |
1319 | #define USB_DEVICE_ID_WACOM_VOLITO 0x0060 | |
1320 | #define USB_DEVICE_ID_WACOM_PTU 0x0003 | |
5ce0482e PC |
1321 | #define USB_DEVICE_ID_WACOM_INTUOS3 0x00B0 |
1322 | #define USB_DEVICE_ID_WACOM_CINTIQ 0x003F | |
116d75bd | 1323 | #define USB_DEVICE_ID_WACOM_DTF 0x00C0 |
1da177e4 | 1324 | |
53880546 SV |
1325 | #define USB_VENDOR_ID_ACECAD 0x0460 |
1326 | #define USB_DEVICE_ID_ACECAD_FLAIR 0x0004 | |
1327 | #define USB_DEVICE_ID_ACECAD_302 0x0008 | |
1328 | ||
1da177e4 LT |
1329 | #define USB_VENDOR_ID_KBGEAR 0x084e |
1330 | #define USB_DEVICE_ID_KBGEAR_JAMSTUDIO 0x1001 | |
1331 | ||
1332 | #define USB_VENDOR_ID_AIPTEK 0x08ca | |
1333 | #define USB_DEVICE_ID_AIPTEK_01 0x0001 | |
1334 | #define USB_DEVICE_ID_AIPTEK_10 0x0010 | |
1335 | #define USB_DEVICE_ID_AIPTEK_20 0x0020 | |
1336 | #define USB_DEVICE_ID_AIPTEK_21 0x0021 | |
1337 | #define USB_DEVICE_ID_AIPTEK_22 0x0022 | |
1338 | #define USB_DEVICE_ID_AIPTEK_23 0x0023 | |
1339 | #define USB_DEVICE_ID_AIPTEK_24 0x0024 | |
1340 | ||
1341 | #define USB_VENDOR_ID_GRIFFIN 0x077d | |
1342 | #define USB_DEVICE_ID_POWERMATE 0x0410 | |
1343 | #define USB_DEVICE_ID_SOUNDKNOB 0x04AA | |
1344 | ||
1345 | #define USB_VENDOR_ID_ATEN 0x0557 | |
1346 | #define USB_DEVICE_ID_ATEN_UC100KM 0x2004 | |
1347 | #define USB_DEVICE_ID_ATEN_CS124U 0x2202 | |
1348 | #define USB_DEVICE_ID_ATEN_2PORTKVM 0x2204 | |
1349 | #define USB_DEVICE_ID_ATEN_4PORTKVM 0x2205 | |
1350 | #define USB_DEVICE_ID_ATEN_4PORTKVMC 0x2208 | |
1351 | ||
1352 | #define USB_VENDOR_ID_TOPMAX 0x0663 | |
1353 | #define USB_DEVICE_ID_TOPMAX_COBRAPAD 0x0103 | |
1354 | ||
1355 | #define USB_VENDOR_ID_HAPP 0x078b | |
1356 | #define USB_DEVICE_ID_UGCI_DRIVING 0x0010 | |
1357 | #define USB_DEVICE_ID_UGCI_FLYING 0x0020 | |
1358 | #define USB_DEVICE_ID_UGCI_FIGHTING 0x0030 | |
1359 | ||
1360 | #define USB_VENDOR_ID_MGE 0x0463 | |
1361 | #define USB_DEVICE_ID_MGE_UPS 0xffff | |
1362 | #define USB_DEVICE_ID_MGE_UPS1 0x0001 | |
1363 | ||
1364 | #define USB_VENDOR_ID_ONTRAK 0x0a07 | |
1365 | #define USB_DEVICE_ID_ONTRAK_ADU100 0x0064 | |
1366 | ||
1367 | #define USB_VENDOR_ID_TANGTOP 0x0d3d | |
1368 | #define USB_DEVICE_ID_TANGTOP_USBPS2 0x0001 | |
1369 | ||
1370 | #define USB_VENDOR_ID_ESSENTIAL_REALITY 0x0d7f | |
1371 | #define USB_DEVICE_ID_ESSENTIAL_REALITY_P5 0x0100 | |
1372 | ||
1373 | #define USB_VENDOR_ID_A4TECH 0x09da | |
1374 | #define USB_DEVICE_ID_A4TECH_WCP32PU 0x0006 | |
1375 | ||
61cdecd9 | 1376 | #define USB_VENDOR_ID_AASHIMA 0x06d6 |
6345fdfd | 1377 | #define USB_DEVICE_ID_AASHIMA_GAMEPAD 0x0025 |
61cdecd9 | 1378 | #define USB_DEVICE_ID_AASHIMA_PREDATOR 0x0026 |
6345fdfd | 1379 | |
1da177e4 LT |
1380 | #define USB_VENDOR_ID_CYPRESS 0x04b4 |
1381 | #define USB_DEVICE_ID_CYPRESS_MOUSE 0x0001 | |
1382 | #define USB_DEVICE_ID_CYPRESS_HIDCOM 0x5500 | |
7d25258f | 1383 | #define USB_DEVICE_ID_CYPRESS_ULTRAMOUSE 0x7417 |
1da177e4 LT |
1384 | |
1385 | #define USB_VENDOR_ID_BERKSHIRE 0x0c98 | |
1386 | #define USB_DEVICE_ID_BERKSHIRE_PCWD 0x1140 | |
1387 | ||
1388 | #define USB_VENDOR_ID_ALPS 0x0433 | |
1389 | #define USB_DEVICE_ID_IBM_GAMEPAD 0x1101 | |
1390 | ||
1391 | #define USB_VENDOR_ID_SAITEK 0x06a3 | |
1392 | #define USB_DEVICE_ID_SAITEK_RUMBLEPAD 0xff17 | |
1393 | ||
1394 | #define USB_VENDOR_ID_NEC 0x073e | |
1395 | #define USB_DEVICE_ID_NEC_USB_GAME_PAD 0x0301 | |
1396 | ||
1397 | #define USB_VENDOR_ID_CHIC 0x05fe | |
1398 | #define USB_DEVICE_ID_CHIC_GAMEPAD 0x0014 | |
1399 | ||
1400 | #define USB_VENDOR_ID_GLAB 0x06c2 | |
1401 | #define USB_DEVICE_ID_4_PHIDGETSERVO_30 0x0038 | |
1402 | #define USB_DEVICE_ID_1_PHIDGETSERVO_30 0x0039 | |
1403 | #define USB_DEVICE_ID_8_8_8_IF_KIT 0x0045 | |
1404 | #define USB_DEVICE_ID_0_0_4_IF_KIT 0x0040 | |
1405 | #define USB_DEVICE_ID_0_8_8_IF_KIT 0x0053 | |
1406 | ||
1407 | #define USB_VENDOR_ID_WISEGROUP 0x0925 | |
1408 | #define USB_DEVICE_ID_1_PHIDGETSERVO_20 0x8101 | |
1409 | #define USB_DEVICE_ID_4_PHIDGETSERVO_20 0x8104 | |
1410 | ||
1411 | #define USB_VENDOR_ID_CODEMERCS 0x07c0 | |
1412 | #define USB_DEVICE_ID_CODEMERCS_IOW40 0x1500 | |
1413 | #define USB_DEVICE_ID_CODEMERCS_IOW24 0x1501 | |
1414 | #define USB_DEVICE_ID_CODEMERCS_IOW48 0x1502 | |
1415 | #define USB_DEVICE_ID_CODEMERCS_IOW28 0x1503 | |
1416 | ||
1417 | #define USB_VENDOR_ID_DELORME 0x1163 | |
1418 | #define USB_DEVICE_ID_DELORME_EARTHMATE 0x0100 | |
dc1d1003 | 1419 | #define USB_DEVICE_ID_DELORME_EM_LT20 0x0200 |
1da177e4 LT |
1420 | |
1421 | #define USB_VENDOR_ID_MCC 0x09db | |
1422 | #define USB_DEVICE_ID_MCC_PMD1024LS 0x0076 | |
1423 | #define USB_DEVICE_ID_MCC_PMD1208LS 0x007a | |
1424 | ||
1425 | #define USB_VENDOR_ID_CHICONY 0x04f2 | |
1426 | #define USB_DEVICE_ID_CHICONY_USBHUB_KB 0x0100 | |
1427 | ||
1428 | #define USB_VENDOR_ID_BTC 0x046e | |
1429 | #define USB_DEVICE_ID_BTC_KEYBOARD 0x5303 | |
1430 | ||
4871d3be GKH |
1431 | #define USB_VENDOR_ID_VERNIER 0x08f7 |
1432 | #define USB_DEVICE_ID_VERNIER_LABPRO 0x0001 | |
1433 | #define USB_DEVICE_ID_VERNIER_GOTEMP 0x0002 | |
1434 | #define USB_DEVICE_ID_VERNIER_SKIP 0x0003 | |
1435 | #define USB_DEVICE_ID_VERNIER_CYCLOPS 0x0004 | |
1436 | ||
8fd6db47 | 1437 | #define USB_VENDOR_ID_LD 0x0f11 |
ba3e66e9 MH |
1438 | #define USB_DEVICE_ID_LD_CASSY 0x1000 |
1439 | #define USB_DEVICE_ID_LD_POCKETCASSY 0x1010 | |
1440 | #define USB_DEVICE_ID_LD_MOBILECASSY 0x1020 | |
1441 | #define USB_DEVICE_ID_LD_JWM 0x1080 | |
1442 | #define USB_DEVICE_ID_LD_DMMP 0x1081 | |
1443 | #define USB_DEVICE_ID_LD_UMIP 0x1090 | |
1444 | #define USB_DEVICE_ID_LD_XRAY1 0x1100 | |
1445 | #define USB_DEVICE_ID_LD_XRAY2 0x1101 | |
1446 | #define USB_DEVICE_ID_LD_VIDEOCOM 0x1200 | |
1447 | #define USB_DEVICE_ID_LD_COM3LAB 0x2000 | |
1448 | #define USB_DEVICE_ID_LD_TELEPORT 0x2010 | |
1449 | #define USB_DEVICE_ID_LD_NETWORKANALYSER 0x2020 | |
1450 | #define USB_DEVICE_ID_LD_POWERCONTROL 0x2030 | |
1451 | #define USB_DEVICE_ID_LD_MACHINETEST 0x2040 | |
8fd6db47 | 1452 | |
c58de6d9 VP |
1453 | #define USB_VENDOR_ID_APPLE 0x05ac |
1454 | #define USB_DEVICE_ID_APPLE_POWERMOUSE 0x0304 | |
1da177e4 | 1455 | |
940824b0 VP |
1456 | #define USB_VENDOR_ID_CHERRY 0x046a |
1457 | #define USB_DEVICE_ID_CHERRY_CYMOTION 0x0023 | |
1458 | ||
dc41baf8 VP |
1459 | #define USB_VENDOR_ID_HP 0x03f0 |
1460 | #define USB_DEVICE_ID_HP_USBHUB_KB 0x020c | |
1461 | ||
1da177e4 LT |
1462 | /* |
1463 | * Alphabetically sorted blacklist by quirk type. | |
1464 | */ | |
1465 | ||
4c4c9432 | 1466 | static const struct hid_blacklist { |
1da177e4 LT |
1467 | __u16 idVendor; |
1468 | __u16 idProduct; | |
1469 | unsigned quirks; | |
1470 | } hid_blacklist[] = { | |
1471 | ||
1472 | { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01, HID_QUIRK_IGNORE }, | |
1473 | { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10, HID_QUIRK_IGNORE }, | |
1474 | { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20, HID_QUIRK_IGNORE }, | |
1475 | { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21, HID_QUIRK_IGNORE }, | |
1476 | { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22, HID_QUIRK_IGNORE }, | |
1477 | { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23, HID_QUIRK_IGNORE }, | |
1478 | { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24, HID_QUIRK_IGNORE }, | |
1479 | { USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD, HID_QUIRK_IGNORE }, | |
1480 | { USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW40, HID_QUIRK_IGNORE }, | |
1481 | { USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW24, HID_QUIRK_IGNORE }, | |
1482 | { USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW48, HID_QUIRK_IGNORE }, | |
1483 | { USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW28, HID_QUIRK_IGNORE }, | |
1484 | { USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM, HID_QUIRK_IGNORE }, | |
7d25258f | 1485 | { USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE, HID_QUIRK_IGNORE }, |
1da177e4 | 1486 | { USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE, HID_QUIRK_IGNORE }, |
dc1d1003 | 1487 | { USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20, HID_QUIRK_IGNORE }, |
1da177e4 LT |
1488 | { USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5, HID_QUIRK_IGNORE }, |
1489 | { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30, HID_QUIRK_IGNORE }, | |
1490 | { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30, HID_QUIRK_IGNORE }, | |
1491 | { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT, HID_QUIRK_IGNORE }, | |
1492 | { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT, HID_QUIRK_IGNORE }, | |
1493 | { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT, HID_QUIRK_IGNORE }, | |
1494 | { USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE, HID_QUIRK_IGNORE }, | |
1495 | { USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB, HID_QUIRK_IGNORE }, | |
1496 | { USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO, HID_QUIRK_IGNORE }, | |
ba3e66e9 MH |
1497 | { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY, HID_QUIRK_IGNORE }, |
1498 | { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY, HID_QUIRK_IGNORE }, | |
1499 | { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY, HID_QUIRK_IGNORE }, | |
1500 | { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM, HID_QUIRK_IGNORE }, | |
1501 | { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP, HID_QUIRK_IGNORE }, | |
1502 | { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP, HID_QUIRK_IGNORE }, | |
1503 | { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY1, HID_QUIRK_IGNORE }, | |
1504 | { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2, HID_QUIRK_IGNORE }, | |
1505 | { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM, HID_QUIRK_IGNORE }, | |
1506 | { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB, HID_QUIRK_IGNORE }, | |
1507 | { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT, HID_QUIRK_IGNORE }, | |
1508 | { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER, HID_QUIRK_IGNORE }, | |
1509 | { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL, HID_QUIRK_IGNORE }, | |
1510 | { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST, HID_QUIRK_IGNORE }, | |
1da177e4 LT |
1511 | { USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS, HID_QUIRK_IGNORE }, |
1512 | { USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS, HID_QUIRK_IGNORE }, | |
1513 | { USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS, HID_QUIRK_IGNORE }, | |
1514 | { USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1, HID_QUIRK_IGNORE }, | |
1515 | { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100, HID_QUIRK_IGNORE }, | |
1516 | { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100, HID_QUIRK_IGNORE }, | |
1517 | { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200, HID_QUIRK_IGNORE }, | |
1518 | { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300, HID_QUIRK_IGNORE }, | |
1519 | { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400, HID_QUIRK_IGNORE }, | |
1520 | { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500, HID_QUIRK_IGNORE }, | |
4871d3be GKH |
1521 | { USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO, HID_QUIRK_IGNORE }, |
1522 | { USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP, HID_QUIRK_IGNORE }, | |
1523 | { USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP, HID_QUIRK_IGNORE }, | |
1524 | { USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS, HID_QUIRK_IGNORE }, | |
1da177e4 LT |
1525 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PENPARTNER, HID_QUIRK_IGNORE }, |
1526 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE, HID_QUIRK_IGNORE }, | |
1527 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 1, HID_QUIRK_IGNORE }, | |
1528 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 2, HID_QUIRK_IGNORE }, | |
1529 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 3, HID_QUIRK_IGNORE }, | |
1530 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 4, HID_QUIRK_IGNORE }, | |
1531 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS, HID_QUIRK_IGNORE }, | |
1532 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS + 1, HID_QUIRK_IGNORE }, | |
1533 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS + 2, HID_QUIRK_IGNORE }, | |
1534 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS + 3, HID_QUIRK_IGNORE }, | |
1535 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS + 4, HID_QUIRK_IGNORE }, | |
1536 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL, HID_QUIRK_IGNORE }, | |
1537 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 1, HID_QUIRK_IGNORE }, | |
1538 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 2, HID_QUIRK_IGNORE }, | |
1539 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 3, HID_QUIRK_IGNORE }, | |
1540 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 4, HID_QUIRK_IGNORE }, | |
1541 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 5, HID_QUIRK_IGNORE }, | |
116d75bd PC |
1542 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 7, HID_QUIRK_IGNORE }, |
1543 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 8, HID_QUIRK_IGNORE }, | |
1544 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 9, HID_QUIRK_IGNORE }, | |
1da177e4 LT |
1545 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 1, HID_QUIRK_IGNORE }, |
1546 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 2, HID_QUIRK_IGNORE }, | |
1547 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 3, HID_QUIRK_IGNORE }, | |
1548 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 4, HID_QUIRK_IGNORE }, | |
1549 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 5, HID_QUIRK_IGNORE }, | |
1550 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 7, HID_QUIRK_IGNORE }, | |
1551 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_VOLITO, HID_QUIRK_IGNORE }, | |
116d75bd PC |
1552 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_VOLITO + 1, HID_QUIRK_IGNORE }, |
1553 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_VOLITO + 2, HID_QUIRK_IGNORE }, | |
1554 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_VOLITO + 3, HID_QUIRK_IGNORE }, | |
1555 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_VOLITO + 4, HID_QUIRK_IGNORE }, | |
1556 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 5, HID_QUIRK_IGNORE }, | |
1557 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 6, HID_QUIRK_IGNORE }, | |
1da177e4 | 1558 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PTU, HID_QUIRK_IGNORE }, |
5ce0482e PC |
1559 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS3, HID_QUIRK_IGNORE }, |
1560 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS3 + 1, HID_QUIRK_IGNORE }, | |
1561 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS3 + 2, HID_QUIRK_IGNORE }, | |
116d75bd | 1562 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS3 + 5, HID_QUIRK_IGNORE }, |
5ce0482e | 1563 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_CINTIQ, HID_QUIRK_IGNORE }, |
116d75bd | 1564 | { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_DTF, HID_QUIRK_IGNORE }, |
1da177e4 LT |
1565 | { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20, HID_QUIRK_IGNORE }, |
1566 | { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20, HID_QUIRK_IGNORE }, | |
1567 | ||
53880546 SV |
1568 | { USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR, HID_QUIRK_IGNORE }, |
1569 | { USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302, HID_QUIRK_IGNORE }, | |
1570 | ||
1da177e4 LT |
1571 | { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_UC100KM, HID_QUIRK_NOGET }, |
1572 | { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS124U, HID_QUIRK_NOGET }, | |
1573 | { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_2PORTKVM, HID_QUIRK_NOGET }, | |
1574 | { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVM, HID_QUIRK_NOGET }, | |
1575 | { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVMC, HID_QUIRK_NOGET }, | |
1576 | { USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_KEYBOARD, HID_QUIRK_NOGET}, | |
1577 | { USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_USBHUB_KB, HID_QUIRK_NOGET}, | |
dc41baf8 | 1578 | { USB_VENDOR_ID_HP, USB_DEVICE_ID_HP_USBHUB_KB, HID_QUIRK_NOGET }, |
1da177e4 LT |
1579 | { USB_VENDOR_ID_TANGTOP, USB_DEVICE_ID_TANGTOP_USBPS2, HID_QUIRK_NOGET }, |
1580 | ||
c58de6d9 | 1581 | { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_POWERMOUSE, HID_QUIRK_2WHEEL_POWERMOUSE }, |
1da177e4 LT |
1582 | { USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU, HID_QUIRK_2WHEEL_MOUSE_HACK_7 }, |
1583 | { USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE, HID_QUIRK_2WHEEL_MOUSE_HACK_5 }, | |
1584 | ||
6345fdfd | 1585 | { USB_VENDOR_ID_AASHIMA, USB_DEVICE_ID_AASHIMA_GAMEPAD, HID_QUIRK_BADPAD }, |
61cdecd9 | 1586 | { USB_VENDOR_ID_AASHIMA, USB_DEVICE_ID_AASHIMA_PREDATOR, HID_QUIRK_BADPAD }, |
1da177e4 LT |
1587 | { USB_VENDOR_ID_ALPS, USB_DEVICE_ID_IBM_GAMEPAD, HID_QUIRK_BADPAD }, |
1588 | { USB_VENDOR_ID_CHIC, USB_DEVICE_ID_CHIC_GAMEPAD, HID_QUIRK_BADPAD }, | |
1589 | { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_DRIVING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT }, | |
1590 | { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FLYING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT }, | |
1591 | { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FIGHTING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT }, | |
1592 | { USB_VENDOR_ID_NEC, USB_DEVICE_ID_NEC_USB_GAME_PAD, HID_QUIRK_BADPAD }, | |
1593 | { USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RUMBLEPAD, HID_QUIRK_BADPAD }, | |
1594 | { USB_VENDOR_ID_TOPMAX, USB_DEVICE_ID_TOPMAX_COBRAPAD, HID_QUIRK_BADPAD }, | |
1595 | ||
940824b0 VP |
1596 | { USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION, HID_QUIRK_CYMOTION }, |
1597 | ||
eab9edd2 MH |
1598 | { USB_VENDOR_ID_APPLE, 0x020E, HID_QUIRK_POWERBOOK_HAS_FN }, |
1599 | { USB_VENDOR_ID_APPLE, 0x020F, HID_QUIRK_POWERBOOK_HAS_FN }, | |
1600 | { USB_VENDOR_ID_APPLE, 0x0214, HID_QUIRK_POWERBOOK_HAS_FN }, | |
1601 | { USB_VENDOR_ID_APPLE, 0x0215, HID_QUIRK_POWERBOOK_HAS_FN }, | |
1602 | { USB_VENDOR_ID_APPLE, 0x0216, HID_QUIRK_POWERBOOK_HAS_FN }, | |
1603 | { USB_VENDOR_ID_APPLE, 0x030A, HID_QUIRK_POWERBOOK_HAS_FN }, | |
1604 | { USB_VENDOR_ID_APPLE, 0x030B, HID_QUIRK_POWERBOOK_HAS_FN }, | |
1605 | ||
1da177e4 LT |
1606 | { 0, 0 } |
1607 | }; | |
1608 | ||
bf0964dc MH |
1609 | /* |
1610 | * Traverse the supplied list of reports and find the longest | |
1611 | */ | |
1612 | static void hid_find_max_report(struct hid_device *hid, unsigned int type, int *max) | |
1613 | { | |
1614 | struct hid_report *report; | |
1615 | int size; | |
1616 | ||
1617 | list_for_each_entry(report, &hid->report_enum[type].report_list, list) { | |
1618 | size = ((report->size - 1) >> 3) + 1; | |
1619 | if (type == HID_INPUT_REPORT && hid->report_enum[type].numbered) | |
1620 | size++; | |
1621 | if (*max < size) | |
1622 | *max = size; | |
1623 | } | |
1624 | } | |
1625 | ||
1da177e4 LT |
1626 | static int hid_alloc_buffers(struct usb_device *dev, struct hid_device *hid) |
1627 | { | |
bf0964dc | 1628 | if (!(hid->inbuf = usb_buffer_alloc(dev, hid->bufsize, SLAB_ATOMIC, &hid->inbuf_dma))) |
1da177e4 | 1629 | return -1; |
bf0964dc | 1630 | if (!(hid->outbuf = usb_buffer_alloc(dev, hid->bufsize, SLAB_ATOMIC, &hid->outbuf_dma))) |
1da177e4 LT |
1631 | return -1; |
1632 | if (!(hid->cr = usb_buffer_alloc(dev, sizeof(*(hid->cr)), SLAB_ATOMIC, &hid->cr_dma))) | |
1633 | return -1; | |
bf0964dc | 1634 | if (!(hid->ctrlbuf = usb_buffer_alloc(dev, hid->bufsize, SLAB_ATOMIC, &hid->ctrlbuf_dma))) |
1da177e4 LT |
1635 | return -1; |
1636 | ||
1637 | return 0; | |
1638 | } | |
1639 | ||
1640 | static void hid_free_buffers(struct usb_device *dev, struct hid_device *hid) | |
1641 | { | |
1642 | if (hid->inbuf) | |
bf0964dc | 1643 | usb_buffer_free(dev, hid->bufsize, hid->inbuf, hid->inbuf_dma); |
1da177e4 | 1644 | if (hid->outbuf) |
bf0964dc | 1645 | usb_buffer_free(dev, hid->bufsize, hid->outbuf, hid->outbuf_dma); |
1da177e4 LT |
1646 | if (hid->cr) |
1647 | usb_buffer_free(dev, sizeof(*(hid->cr)), hid->cr, hid->cr_dma); | |
1648 | if (hid->ctrlbuf) | |
bf0964dc | 1649 | usb_buffer_free(dev, hid->bufsize, hid->ctrlbuf, hid->ctrlbuf_dma); |
1da177e4 LT |
1650 | } |
1651 | ||
940824b0 VP |
1652 | /* |
1653 | * Cherry Cymotion keyboard have an invalid HID report descriptor, | |
1654 | * that needs fixing before we can parse it. | |
1655 | */ | |
1656 | ||
1657 | static void hid_fixup_cymotion_descriptor(char *rdesc, int rsize) | |
1658 | { | |
1659 | if (rsize >= 17 && rdesc[11] == 0x3c && rdesc[12] == 0x02) { | |
1660 | info("Fixing up Cherry Cymotion report descriptor"); | |
1661 | rdesc[11] = rdesc[16] = 0xff; | |
1662 | rdesc[12] = rdesc[17] = 0x03; | |
1663 | } | |
1664 | } | |
1665 | ||
1da177e4 LT |
1666 | static struct hid_device *usb_hid_configure(struct usb_interface *intf) |
1667 | { | |
1668 | struct usb_host_interface *interface = intf->cur_altsetting; | |
1669 | struct usb_device *dev = interface_to_usbdev (intf); | |
1670 | struct hid_descriptor *hdesc; | |
1671 | struct hid_device *hid; | |
1672 | unsigned quirks = 0, rsize = 0; | |
c5b7c7c3 DT |
1673 | char *rdesc; |
1674 | int n, len, insize = 0; | |
1da177e4 LT |
1675 | |
1676 | for (n = 0; hid_blacklist[n].idVendor; n++) | |
1677 | if ((hid_blacklist[n].idVendor == le16_to_cpu(dev->descriptor.idVendor)) && | |
1678 | (hid_blacklist[n].idProduct == le16_to_cpu(dev->descriptor.idProduct))) | |
1679 | quirks = hid_blacklist[n].quirks; | |
1680 | ||
1681 | if (quirks & HID_QUIRK_IGNORE) | |
1682 | return NULL; | |
1683 | ||
c5b7c7c3 DT |
1684 | if (usb_get_extra_descriptor(interface, HID_DT_HID, &hdesc) && |
1685 | (!interface->desc.bNumEndpoints || | |
1686 | usb_get_extra_descriptor(&interface->endpoint[0], HID_DT_HID, &hdesc))) { | |
1687 | dbg("class descriptor not present\n"); | |
1688 | return NULL; | |
1da177e4 LT |
1689 | } |
1690 | ||
1691 | for (n = 0; n < hdesc->bNumDescriptors; n++) | |
1692 | if (hdesc->desc[n].bDescriptorType == HID_DT_REPORT) | |
1693 | rsize = le16_to_cpu(hdesc->desc[n].wDescriptorLength); | |
1694 | ||
1695 | if (!rsize || rsize > HID_MAX_DESCRIPTOR_SIZE) { | |
1696 | dbg("weird size of report descriptor (%u)", rsize); | |
1697 | return NULL; | |
1698 | } | |
1699 | ||
1700 | if (!(rdesc = kmalloc(rsize, GFP_KERNEL))) { | |
1701 | dbg("couldn't allocate rdesc memory"); | |
1702 | return NULL; | |
1703 | } | |
1704 | ||
854561b0 VP |
1705 | hid_set_idle(dev, interface->desc.bInterfaceNumber, 0, 0); |
1706 | ||
1da177e4 LT |
1707 | if ((n = hid_get_class_descriptor(dev, interface->desc.bInterfaceNumber, HID_DT_REPORT, rdesc, rsize)) < 0) { |
1708 | dbg("reading report descriptor failed"); | |
1709 | kfree(rdesc); | |
1710 | return NULL; | |
1711 | } | |
1712 | ||
940824b0 VP |
1713 | if ((quirks & HID_QUIRK_CYMOTION)) |
1714 | hid_fixup_cymotion_descriptor(rdesc, rsize); | |
1715 | ||
1da177e4 LT |
1716 | #ifdef DEBUG_DATA |
1717 | printk(KERN_DEBUG __FILE__ ": report descriptor (size %u, read %d) = ", rsize, n); | |
1718 | for (n = 0; n < rsize; n++) | |
1719 | printk(" %02x", (unsigned char) rdesc[n]); | |
1720 | printk("\n"); | |
1721 | #endif | |
1722 | ||
1723 | if (!(hid = hid_parse_report(rdesc, n))) { | |
1724 | dbg("parsing report descriptor failed"); | |
1725 | kfree(rdesc); | |
1726 | return NULL; | |
1727 | } | |
1728 | ||
1729 | kfree(rdesc); | |
1730 | hid->quirks = quirks; | |
1731 | ||
bf0964dc MH |
1732 | hid->bufsize = HID_MIN_BUFFER_SIZE; |
1733 | hid_find_max_report(hid, HID_INPUT_REPORT, &hid->bufsize); | |
1734 | hid_find_max_report(hid, HID_OUTPUT_REPORT, &hid->bufsize); | |
1735 | hid_find_max_report(hid, HID_FEATURE_REPORT, &hid->bufsize); | |
1736 | ||
1737 | if (hid->bufsize > HID_MAX_BUFFER_SIZE) | |
1738 | hid->bufsize = HID_MAX_BUFFER_SIZE; | |
1739 | ||
1740 | hid_find_max_report(hid, HID_INPUT_REPORT, &insize); | |
1741 | ||
1742 | if (insize > HID_MAX_BUFFER_SIZE) | |
1743 | insize = HID_MAX_BUFFER_SIZE; | |
1744 | ||
1da177e4 LT |
1745 | if (hid_alloc_buffers(dev, hid)) { |
1746 | hid_free_buffers(dev, hid); | |
1747 | goto fail; | |
1748 | } | |
1749 | ||
1750 | for (n = 0; n < interface->desc.bNumEndpoints; n++) { | |
1751 | ||
1752 | struct usb_endpoint_descriptor *endpoint; | |
1753 | int pipe; | |
1754 | int interval; | |
1755 | ||
1756 | endpoint = &interface->endpoint[n].desc; | |
1757 | if ((endpoint->bmAttributes & 3) != 3) /* Not an interrupt endpoint */ | |
1758 | continue; | |
1759 | ||
1da177e4 | 1760 | interval = endpoint->bInterval; |
1da177e4 LT |
1761 | |
1762 | /* Change the polling interval of mice. */ | |
1763 | if (hid->collection->usage == HID_GD_MOUSE && hid_mousepoll_interval > 0) | |
1764 | interval = hid_mousepoll_interval; | |
05f091ab | 1765 | |
1da177e4 LT |
1766 | if (endpoint->bEndpointAddress & USB_DIR_IN) { |
1767 | if (hid->urbin) | |
1768 | continue; | |
1769 | if (!(hid->urbin = usb_alloc_urb(0, GFP_KERNEL))) | |
1770 | goto fail; | |
1771 | pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress); | |
bf0964dc | 1772 | usb_fill_int_urb(hid->urbin, dev, pipe, hid->inbuf, insize, |
1da177e4 LT |
1773 | hid_irq_in, hid, interval); |
1774 | hid->urbin->transfer_dma = hid->inbuf_dma; | |
b375a049 | 1775 | hid->urbin->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; |
1da177e4 LT |
1776 | } else { |
1777 | if (hid->urbout) | |
1778 | continue; | |
1779 | if (!(hid->urbout = usb_alloc_urb(0, GFP_KERNEL))) | |
1780 | goto fail; | |
1781 | pipe = usb_sndintpipe(dev, endpoint->bEndpointAddress); | |
1782 | usb_fill_int_urb(hid->urbout, dev, pipe, hid->outbuf, 0, | |
1783 | hid_irq_out, hid, interval); | |
1784 | hid->urbout->transfer_dma = hid->outbuf_dma; | |
b375a049 | 1785 | hid->urbout->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; |
1da177e4 LT |
1786 | } |
1787 | } | |
1788 | ||
1789 | if (!hid->urbin) { | |
1790 | err("couldn't find an input interrupt endpoint"); | |
1791 | goto fail; | |
1792 | } | |
1793 | ||
1794 | init_waitqueue_head(&hid->wait); | |
1795 | ||
1796 | spin_lock_init(&hid->outlock); | |
1797 | spin_lock_init(&hid->ctrllock); | |
1798 | ||
1799 | hid->version = le16_to_cpu(hdesc->bcdHID); | |
1800 | hid->country = hdesc->bCountryCode; | |
1801 | hid->dev = dev; | |
1802 | hid->intf = intf; | |
1803 | hid->ifnum = interface->desc.bInterfaceNumber; | |
1804 | ||
1805 | hid->name[0] = 0; | |
1806 | ||
c5b7c7c3 DT |
1807 | if (dev->manufacturer) |
1808 | strlcpy(hid->name, dev->manufacturer, sizeof(hid->name)); | |
1809 | ||
1810 | if (dev->product) { | |
1811 | if (dev->manufacturer) | |
1812 | strlcat(hid->name, " ", sizeof(hid->name)); | |
1813 | strlcat(hid->name, dev->product, sizeof(hid->name)); | |
1814 | } | |
1815 | ||
1816 | if (!strlen(hid->name)) | |
1817 | snprintf(hid->name, sizeof(hid->name), "HID %04x:%04x", | |
1818 | le16_to_cpu(dev->descriptor.idVendor), | |
1819 | le16_to_cpu(dev->descriptor.idProduct)); | |
1da177e4 | 1820 | |
c5b7c7c3 DT |
1821 | usb_make_path(dev, hid->phys, sizeof(hid->phys)); |
1822 | strlcat(hid->phys, "/input", sizeof(hid->phys)); | |
1823 | len = strlen(hid->phys); | |
1824 | if (len < sizeof(hid->phys) - 1) | |
1825 | snprintf(hid->phys + len, sizeof(hid->phys) - len, | |
1826 | "%d", intf->altsetting[0].desc.bInterfaceNumber); | |
1da177e4 LT |
1827 | |
1828 | if (usb_string(dev, dev->descriptor.iSerialNumber, hid->uniq, 64) <= 0) | |
1829 | hid->uniq[0] = 0; | |
1830 | ||
1da177e4 LT |
1831 | hid->urbctrl = usb_alloc_urb(0, GFP_KERNEL); |
1832 | if (!hid->urbctrl) | |
1833 | goto fail; | |
c5b7c7c3 | 1834 | |
1da177e4 LT |
1835 | usb_fill_control_urb(hid->urbctrl, dev, 0, (void *) hid->cr, |
1836 | hid->ctrlbuf, 1, hid_ctrl, hid); | |
1837 | hid->urbctrl->setup_dma = hid->cr_dma; | |
1838 | hid->urbctrl->transfer_dma = hid->ctrlbuf_dma; | |
b375a049 | 1839 | hid->urbctrl->transfer_flags |= (URB_NO_TRANSFER_DMA_MAP | URB_NO_SETUP_DMA_MAP); |
1da177e4 LT |
1840 | |
1841 | return hid; | |
1842 | ||
1843 | fail: | |
1844 | ||
1845 | if (hid->urbin) | |
1846 | usb_free_urb(hid->urbin); | |
1847 | if (hid->urbout) | |
1848 | usb_free_urb(hid->urbout); | |
1849 | if (hid->urbctrl) | |
1850 | usb_free_urb(hid->urbctrl); | |
1851 | hid_free_buffers(dev, hid); | |
1852 | hid_free_device(hid); | |
1853 | ||
1854 | return NULL; | |
1855 | } | |
1856 | ||
1857 | static void hid_disconnect(struct usb_interface *intf) | |
1858 | { | |
1859 | struct hid_device *hid = usb_get_intfdata (intf); | |
1860 | ||
1861 | if (!hid) | |
1862 | return; | |
1863 | ||
1864 | usb_set_intfdata(intf, NULL); | |
1865 | usb_kill_urb(hid->urbin); | |
1866 | usb_kill_urb(hid->urbout); | |
1867 | usb_kill_urb(hid->urbctrl); | |
1868 | ||
1869 | if (hid->claimed & HID_CLAIMED_INPUT) | |
1870 | hidinput_disconnect(hid); | |
1871 | if (hid->claimed & HID_CLAIMED_HIDDEV) | |
1872 | hiddev_disconnect(hid); | |
1873 | ||
1874 | usb_free_urb(hid->urbin); | |
1875 | usb_free_urb(hid->urbctrl); | |
1876 | if (hid->urbout) | |
1877 | usb_free_urb(hid->urbout); | |
1878 | ||
1879 | hid_free_buffers(hid->dev, hid); | |
1880 | hid_free_device(hid); | |
1881 | } | |
1882 | ||
1883 | static int hid_probe(struct usb_interface *intf, const struct usb_device_id *id) | |
1884 | { | |
1885 | struct hid_device *hid; | |
1886 | char path[64]; | |
1887 | int i; | |
1888 | char *c; | |
1889 | ||
1890 | dbg("HID probe called for ifnum %d", | |
1891 | intf->altsetting->desc.bInterfaceNumber); | |
1892 | ||
1893 | if (!(hid = usb_hid_configure(intf))) | |
479f6ea8 | 1894 | return -ENODEV; |
1da177e4 LT |
1895 | |
1896 | hid_init_reports(hid); | |
1897 | hid_dump_device(hid); | |
1898 | ||
1899 | if (!hidinput_connect(hid)) | |
1900 | hid->claimed |= HID_CLAIMED_INPUT; | |
1901 | if (!hiddev_connect(hid)) | |
1902 | hid->claimed |= HID_CLAIMED_HIDDEV; | |
1903 | ||
1904 | usb_set_intfdata(intf, hid); | |
1905 | ||
1906 | if (!hid->claimed) { | |
1907 | printk ("HID device not claimed by input or hiddev\n"); | |
1908 | hid_disconnect(intf); | |
479f6ea8 | 1909 | return -ENODEV; |
1da177e4 LT |
1910 | } |
1911 | ||
1912 | printk(KERN_INFO); | |
1913 | ||
1914 | if (hid->claimed & HID_CLAIMED_INPUT) | |
1915 | printk("input"); | |
1916 | if (hid->claimed == (HID_CLAIMED_INPUT | HID_CLAIMED_HIDDEV)) | |
1917 | printk(","); | |
1918 | if (hid->claimed & HID_CLAIMED_HIDDEV) | |
1919 | printk("hiddev%d", hid->minor); | |
1920 | ||
1921 | c = "Device"; | |
1922 | for (i = 0; i < hid->maxcollection; i++) { | |
1923 | if (hid->collection[i].type == HID_COLLECTION_APPLICATION && | |
1924 | (hid->collection[i].usage & HID_USAGE_PAGE) == HID_UP_GENDESK && | |
1925 | (hid->collection[i].usage & 0xffff) < ARRAY_SIZE(hid_types)) { | |
1926 | c = hid_types[hid->collection[i].usage & 0xffff]; | |
1927 | break; | |
1928 | } | |
1929 | } | |
1930 | ||
1931 | usb_make_path(interface_to_usbdev(intf), path, 63); | |
1932 | ||
1933 | printk(": USB HID v%x.%02x %s [%s] on %s\n", | |
1934 | hid->version >> 8, hid->version & 0xff, c, hid->name, path); | |
1935 | ||
1936 | return 0; | |
1937 | } | |
1938 | ||
27d72e85 | 1939 | static int hid_suspend(struct usb_interface *intf, pm_message_t message) |
1da177e4 LT |
1940 | { |
1941 | struct hid_device *hid = usb_get_intfdata (intf); | |
1942 | ||
1943 | usb_kill_urb(hid->urbin); | |
1da177e4 LT |
1944 | dev_dbg(&intf->dev, "suspend\n"); |
1945 | return 0; | |
1946 | } | |
1947 | ||
1948 | static int hid_resume(struct usb_interface *intf) | |
1949 | { | |
1950 | struct hid_device *hid = usb_get_intfdata (intf); | |
1951 | int status; | |
1952 | ||
1da177e4 LT |
1953 | if (hid->open) |
1954 | status = usb_submit_urb(hid->urbin, GFP_NOIO); | |
1955 | else | |
1956 | status = 0; | |
1957 | dev_dbg(&intf->dev, "resume status %d\n", status); | |
1958 | return status; | |
1959 | } | |
1960 | ||
1961 | static struct usb_device_id hid_usb_ids [] = { | |
1962 | { .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS, | |
1963 | .bInterfaceClass = USB_INTERFACE_CLASS_HID }, | |
1964 | { } /* Terminating entry */ | |
1965 | }; | |
1966 | ||
1967 | MODULE_DEVICE_TABLE (usb, hid_usb_ids); | |
1968 | ||
1969 | static struct usb_driver hid_driver = { | |
1da177e4 LT |
1970 | .name = "usbhid", |
1971 | .probe = hid_probe, | |
1972 | .disconnect = hid_disconnect, | |
1973 | .suspend = hid_suspend, | |
1974 | .resume = hid_resume, | |
1975 | .id_table = hid_usb_ids, | |
1976 | }; | |
1977 | ||
1978 | static int __init hid_init(void) | |
1979 | { | |
1980 | int retval; | |
1981 | retval = hiddev_init(); | |
1982 | if (retval) | |
1983 | goto hiddev_init_fail; | |
1984 | retval = usb_register(&hid_driver); | |
1985 | if (retval) | |
1986 | goto usb_register_fail; | |
1987 | info(DRIVER_VERSION ":" DRIVER_DESC); | |
1988 | ||
1989 | return 0; | |
1990 | usb_register_fail: | |
1991 | hiddev_exit(); | |
1992 | hiddev_init_fail: | |
1993 | return retval; | |
1994 | } | |
1995 | ||
1996 | static void __exit hid_exit(void) | |
1997 | { | |
1998 | usb_deregister(&hid_driver); | |
1999 | hiddev_exit(); | |
2000 | } | |
2001 | ||
2002 | module_init(hid_init); | |
2003 | module_exit(hid_exit); | |
2004 | ||
2005 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
2006 | MODULE_DESCRIPTION(DRIVER_DESC); | |
2007 | MODULE_LICENSE(DRIVER_LICENSE); |