Commit | Line | Data |
---|---|---|
dde5845a | 1 | /* |
229695e5 | 2 | * HID support for Linux |
dde5845a JK |
3 | * |
4 | * Copyright (c) 1999 Andreas Gal | |
5 | * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz> | |
6 | * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc | |
f142b3a4 | 7 | * Copyright (c) 2006-2007 Jiri Kosina |
dde5845a JK |
8 | */ |
9 | ||
10 | /* | |
11 | * This program is free software; you can redistribute it and/or modify it | |
12 | * under the terms of the GNU General Public License as published by the Free | |
13 | * Software Foundation; either version 2 of the License, or (at your option) | |
14 | * any later version. | |
15 | */ | |
16 | ||
17 | #include <linux/module.h> | |
18 | #include <linux/slab.h> | |
19 | #include <linux/init.h> | |
20 | #include <linux/kernel.h> | |
dde5845a JK |
21 | #include <linux/list.h> |
22 | #include <linux/mm.h> | |
dde5845a JK |
23 | #include <linux/spinlock.h> |
24 | #include <asm/unaligned.h> | |
25 | #include <asm/byteorder.h> | |
26 | #include <linux/input.h> | |
27 | #include <linux/wait.h> | |
47a80edb | 28 | #include <linux/vmalloc.h> |
c4124c9b | 29 | #include <linux/sched.h> |
dde5845a | 30 | |
dde5845a JK |
31 | #include <linux/hid.h> |
32 | #include <linux/hiddev.h> | |
c080d89a | 33 | #include <linux/hid-debug.h> |
86166b7b | 34 | #include <linux/hidraw.h> |
dde5845a | 35 | |
5f22a799 JS |
36 | #include "hid-ids.h" |
37 | ||
dde5845a JK |
38 | /* |
39 | * Version Information | |
40 | */ | |
41 | ||
42 | #define DRIVER_VERSION "v2.6" | |
f142b3a4 | 43 | #define DRIVER_AUTHOR "Andreas Gal, Vojtech Pavlik, Jiri Kosina" |
53149801 | 44 | #define DRIVER_DESC "HID core driver" |
dde5845a JK |
45 | #define DRIVER_LICENSE "GPL" |
46 | ||
58037eb9 JK |
47 | #ifdef CONFIG_HID_DEBUG |
48 | int hid_debug = 0; | |
377e10fb AH |
49 | module_param_named(debug, hid_debug, int, 0600); |
50 | MODULE_PARM_DESC(debug, "HID debugging (0=off, 1=probing info, 2=continuous data dumping)"); | |
58037eb9 JK |
51 | EXPORT_SYMBOL_GPL(hid_debug); |
52 | #endif | |
53 | ||
dde5845a JK |
54 | /* |
55 | * Register a new report for a device. | |
56 | */ | |
57 | ||
58 | static struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id) | |
59 | { | |
60 | struct hid_report_enum *report_enum = device->report_enum + type; | |
61 | struct hid_report *report; | |
62 | ||
63 | if (report_enum->report_id_hash[id]) | |
64 | return report_enum->report_id_hash[id]; | |
65 | ||
66 | if (!(report = kzalloc(sizeof(struct hid_report), GFP_KERNEL))) | |
67 | return NULL; | |
68 | ||
69 | if (id != 0) | |
70 | report_enum->numbered = 1; | |
71 | ||
72 | report->id = id; | |
73 | report->type = type; | |
74 | report->size = 0; | |
75 | report->device = device; | |
76 | report_enum->report_id_hash[id] = report; | |
77 | ||
78 | list_add_tail(&report->list, &report_enum->report_list); | |
79 | ||
80 | return report; | |
81 | } | |
82 | ||
83 | /* | |
84 | * Register a new field for this report. | |
85 | */ | |
86 | ||
87 | static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values) | |
88 | { | |
89 | struct hid_field *field; | |
90 | ||
91 | if (report->maxfield == HID_MAX_FIELDS) { | |
58037eb9 | 92 | dbg_hid("too many fields in report\n"); |
dde5845a JK |
93 | return NULL; |
94 | } | |
95 | ||
96 | if (!(field = kzalloc(sizeof(struct hid_field) + usages * sizeof(struct hid_usage) | |
97 | + values * sizeof(unsigned), GFP_KERNEL))) return NULL; | |
98 | ||
99 | field->index = report->maxfield++; | |
100 | report->field[field->index] = field; | |
101 | field->usage = (struct hid_usage *)(field + 1); | |
282bfd4c | 102 | field->value = (s32 *)(field->usage + usages); |
dde5845a JK |
103 | field->report = report; |
104 | ||
105 | return field; | |
106 | } | |
107 | ||
108 | /* | |
109 | * Open a collection. The type/usage is pushed on the stack. | |
110 | */ | |
111 | ||
112 | static int open_collection(struct hid_parser *parser, unsigned type) | |
113 | { | |
114 | struct hid_collection *collection; | |
115 | unsigned usage; | |
116 | ||
117 | usage = parser->local.usage[0]; | |
118 | ||
119 | if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) { | |
58037eb9 | 120 | dbg_hid("collection stack overflow\n"); |
dde5845a JK |
121 | return -1; |
122 | } | |
123 | ||
124 | if (parser->device->maxcollection == parser->device->collection_size) { | |
125 | collection = kmalloc(sizeof(struct hid_collection) * | |
126 | parser->device->collection_size * 2, GFP_KERNEL); | |
127 | if (collection == NULL) { | |
58037eb9 | 128 | dbg_hid("failed to reallocate collection array\n"); |
dde5845a JK |
129 | return -1; |
130 | } | |
131 | memcpy(collection, parser->device->collection, | |
132 | sizeof(struct hid_collection) * | |
133 | parser->device->collection_size); | |
134 | memset(collection + parser->device->collection_size, 0, | |
135 | sizeof(struct hid_collection) * | |
136 | parser->device->collection_size); | |
137 | kfree(parser->device->collection); | |
138 | parser->device->collection = collection; | |
139 | parser->device->collection_size *= 2; | |
140 | } | |
141 | ||
142 | parser->collection_stack[parser->collection_stack_ptr++] = | |
143 | parser->device->maxcollection; | |
144 | ||
145 | collection = parser->device->collection + | |
146 | parser->device->maxcollection++; | |
147 | collection->type = type; | |
148 | collection->usage = usage; | |
149 | collection->level = parser->collection_stack_ptr - 1; | |
150 | ||
151 | if (type == HID_COLLECTION_APPLICATION) | |
152 | parser->device->maxapplication++; | |
153 | ||
154 | return 0; | |
155 | } | |
156 | ||
157 | /* | |
158 | * Close a collection. | |
159 | */ | |
160 | ||
161 | static int close_collection(struct hid_parser *parser) | |
162 | { | |
163 | if (!parser->collection_stack_ptr) { | |
58037eb9 | 164 | dbg_hid("collection stack underflow\n"); |
dde5845a JK |
165 | return -1; |
166 | } | |
167 | parser->collection_stack_ptr--; | |
168 | return 0; | |
169 | } | |
170 | ||
171 | /* | |
172 | * Climb up the stack, search for the specified collection type | |
173 | * and return the usage. | |
174 | */ | |
175 | ||
176 | static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type) | |
177 | { | |
178 | int n; | |
179 | for (n = parser->collection_stack_ptr - 1; n >= 0; n--) | |
180 | if (parser->device->collection[parser->collection_stack[n]].type == type) | |
181 | return parser->device->collection[parser->collection_stack[n]].usage; | |
182 | return 0; /* we know nothing about this usage type */ | |
183 | } | |
184 | ||
185 | /* | |
186 | * Add a usage to the temporary parser table. | |
187 | */ | |
188 | ||
189 | static int hid_add_usage(struct hid_parser *parser, unsigned usage) | |
190 | { | |
191 | if (parser->local.usage_index >= HID_MAX_USAGES) { | |
58037eb9 | 192 | dbg_hid("usage index exceeded\n"); |
dde5845a JK |
193 | return -1; |
194 | } | |
195 | parser->local.usage[parser->local.usage_index] = usage; | |
196 | parser->local.collection_index[parser->local.usage_index] = | |
197 | parser->collection_stack_ptr ? | |
198 | parser->collection_stack[parser->collection_stack_ptr - 1] : 0; | |
199 | parser->local.usage_index++; | |
200 | return 0; | |
201 | } | |
202 | ||
203 | /* | |
204 | * Register a new field for this report. | |
205 | */ | |
206 | ||
207 | static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags) | |
208 | { | |
209 | struct hid_report *report; | |
210 | struct hid_field *field; | |
211 | int usages; | |
212 | unsigned offset; | |
213 | int i; | |
214 | ||
215 | if (!(report = hid_register_report(parser->device, report_type, parser->global.report_id))) { | |
58037eb9 | 216 | dbg_hid("hid_register_report failed\n"); |
dde5845a JK |
217 | return -1; |
218 | } | |
219 | ||
220 | if (parser->global.logical_maximum < parser->global.logical_minimum) { | |
58037eb9 | 221 | dbg_hid("logical range invalid %d %d\n", parser->global.logical_minimum, parser->global.logical_maximum); |
dde5845a JK |
222 | return -1; |
223 | } | |
224 | ||
225 | offset = report->size; | |
226 | report->size += parser->global.report_size * parser->global.report_count; | |
227 | ||
228 | if (!parser->local.usage_index) /* Ignore padding fields */ | |
229 | return 0; | |
230 | ||
231 | usages = max_t(int, parser->local.usage_index, parser->global.report_count); | |
232 | ||
233 | if ((field = hid_register_field(report, usages, parser->global.report_count)) == NULL) | |
234 | return 0; | |
235 | ||
236 | field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL); | |
237 | field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL); | |
238 | field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION); | |
239 | ||
240 | for (i = 0; i < usages; i++) { | |
241 | int j = i; | |
242 | /* Duplicate the last usage we parsed if we have excess values */ | |
243 | if (i >= parser->local.usage_index) | |
244 | j = parser->local.usage_index - 1; | |
245 | field->usage[i].hid = parser->local.usage[j]; | |
246 | field->usage[i].collection_index = | |
247 | parser->local.collection_index[j]; | |
248 | } | |
249 | ||
250 | field->maxusage = usages; | |
251 | field->flags = flags; | |
252 | field->report_offset = offset; | |
253 | field->report_type = report_type; | |
254 | field->report_size = parser->global.report_size; | |
255 | field->report_count = parser->global.report_count; | |
256 | field->logical_minimum = parser->global.logical_minimum; | |
257 | field->logical_maximum = parser->global.logical_maximum; | |
258 | field->physical_minimum = parser->global.physical_minimum; | |
259 | field->physical_maximum = parser->global.physical_maximum; | |
260 | field->unit_exponent = parser->global.unit_exponent; | |
261 | field->unit = parser->global.unit; | |
262 | ||
263 | return 0; | |
264 | } | |
265 | ||
266 | /* | |
267 | * Read data value from item. | |
268 | */ | |
269 | ||
270 | static u32 item_udata(struct hid_item *item) | |
271 | { | |
272 | switch (item->size) { | |
880d29f1 JS |
273 | case 1: return item->data.u8; |
274 | case 2: return item->data.u16; | |
275 | case 4: return item->data.u32; | |
dde5845a JK |
276 | } |
277 | return 0; | |
278 | } | |
279 | ||
280 | static s32 item_sdata(struct hid_item *item) | |
281 | { | |
282 | switch (item->size) { | |
880d29f1 JS |
283 | case 1: return item->data.s8; |
284 | case 2: return item->data.s16; | |
285 | case 4: return item->data.s32; | |
dde5845a JK |
286 | } |
287 | return 0; | |
288 | } | |
289 | ||
290 | /* | |
291 | * Process a global item. | |
292 | */ | |
293 | ||
294 | static int hid_parser_global(struct hid_parser *parser, struct hid_item *item) | |
295 | { | |
296 | switch (item->tag) { | |
880d29f1 | 297 | case HID_GLOBAL_ITEM_TAG_PUSH: |
dde5845a | 298 | |
880d29f1 JS |
299 | if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) { |
300 | dbg_hid("global enviroment stack overflow\n"); | |
301 | return -1; | |
302 | } | |
dde5845a | 303 | |
880d29f1 JS |
304 | memcpy(parser->global_stack + parser->global_stack_ptr++, |
305 | &parser->global, sizeof(struct hid_global)); | |
306 | return 0; | |
dde5845a | 307 | |
880d29f1 | 308 | case HID_GLOBAL_ITEM_TAG_POP: |
dde5845a | 309 | |
880d29f1 JS |
310 | if (!parser->global_stack_ptr) { |
311 | dbg_hid("global enviroment stack underflow\n"); | |
312 | return -1; | |
313 | } | |
dde5845a | 314 | |
880d29f1 JS |
315 | memcpy(&parser->global, parser->global_stack + |
316 | --parser->global_stack_ptr, sizeof(struct hid_global)); | |
317 | return 0; | |
dde5845a | 318 | |
880d29f1 JS |
319 | case HID_GLOBAL_ITEM_TAG_USAGE_PAGE: |
320 | parser->global.usage_page = item_udata(item); | |
321 | return 0; | |
dde5845a | 322 | |
880d29f1 JS |
323 | case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM: |
324 | parser->global.logical_minimum = item_sdata(item); | |
325 | return 0; | |
dde5845a | 326 | |
880d29f1 JS |
327 | case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM: |
328 | if (parser->global.logical_minimum < 0) | |
329 | parser->global.logical_maximum = item_sdata(item); | |
330 | else | |
331 | parser->global.logical_maximum = item_udata(item); | |
332 | return 0; | |
dde5845a | 333 | |
880d29f1 JS |
334 | case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM: |
335 | parser->global.physical_minimum = item_sdata(item); | |
336 | return 0; | |
dde5845a | 337 | |
880d29f1 JS |
338 | case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM: |
339 | if (parser->global.physical_minimum < 0) | |
340 | parser->global.physical_maximum = item_sdata(item); | |
341 | else | |
342 | parser->global.physical_maximum = item_udata(item); | |
343 | return 0; | |
dde5845a | 344 | |
880d29f1 JS |
345 | case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT: |
346 | parser->global.unit_exponent = item_sdata(item); | |
347 | return 0; | |
dde5845a | 348 | |
880d29f1 JS |
349 | case HID_GLOBAL_ITEM_TAG_UNIT: |
350 | parser->global.unit = item_udata(item); | |
351 | return 0; | |
dde5845a | 352 | |
880d29f1 JS |
353 | case HID_GLOBAL_ITEM_TAG_REPORT_SIZE: |
354 | parser->global.report_size = item_udata(item); | |
355 | if (parser->global.report_size > 32) { | |
356 | dbg_hid("invalid report_size %d\n", | |
357 | parser->global.report_size); | |
358 | return -1; | |
359 | } | |
360 | return 0; | |
dde5845a | 361 | |
880d29f1 JS |
362 | case HID_GLOBAL_ITEM_TAG_REPORT_COUNT: |
363 | parser->global.report_count = item_udata(item); | |
364 | if (parser->global.report_count > HID_MAX_USAGES) { | |
365 | dbg_hid("invalid report_count %d\n", | |
366 | parser->global.report_count); | |
367 | return -1; | |
368 | } | |
369 | return 0; | |
dde5845a | 370 | |
880d29f1 JS |
371 | case HID_GLOBAL_ITEM_TAG_REPORT_ID: |
372 | parser->global.report_id = item_udata(item); | |
373 | if (parser->global.report_id == 0) { | |
374 | dbg_hid("report_id 0 is invalid\n"); | |
dde5845a | 375 | return -1; |
880d29f1 JS |
376 | } |
377 | return 0; | |
378 | ||
379 | default: | |
380 | dbg_hid("unknown global tag 0x%x\n", item->tag); | |
381 | return -1; | |
dde5845a JK |
382 | } |
383 | } | |
384 | ||
385 | /* | |
386 | * Process a local item. | |
387 | */ | |
388 | ||
389 | static int hid_parser_local(struct hid_parser *parser, struct hid_item *item) | |
390 | { | |
391 | __u32 data; | |
392 | unsigned n; | |
393 | ||
394 | if (item->size == 0) { | |
58037eb9 | 395 | dbg_hid("item data expected for local item\n"); |
dde5845a JK |
396 | return -1; |
397 | } | |
398 | ||
399 | data = item_udata(item); | |
400 | ||
401 | switch (item->tag) { | |
880d29f1 JS |
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_hid("nested delimiters\n"); | |
413 | return -1; | |
dde5845a | 414 | } |
880d29f1 JS |
415 | parser->local.delimiter_depth++; |
416 | parser->local.delimiter_branch++; | |
417 | } else { | |
418 | if (parser->local.delimiter_depth < 1) { | |
419 | dbg_hid("bogus close delimiter\n"); | |
420 | return -1; | |
dde5845a | 421 | } |
880d29f1 JS |
422 | parser->local.delimiter_depth--; |
423 | } | |
424 | return 1; | |
dde5845a | 425 | |
880d29f1 | 426 | case HID_LOCAL_ITEM_TAG_USAGE: |
dde5845a | 427 | |
880d29f1 JS |
428 | if (parser->local.delimiter_branch > 1) { |
429 | dbg_hid("alternative usage ignored\n"); | |
430 | return 0; | |
431 | } | |
dde5845a | 432 | |
880d29f1 JS |
433 | if (item->size <= 2) |
434 | data = (parser->global.usage_page << 16) + data; | |
dde5845a | 435 | |
880d29f1 | 436 | return hid_add_usage(parser, data); |
dde5845a | 437 | |
880d29f1 | 438 | case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM: |
dde5845a | 439 | |
880d29f1 JS |
440 | if (parser->local.delimiter_branch > 1) { |
441 | dbg_hid("alternative usage ignored\n"); | |
dde5845a | 442 | return 0; |
880d29f1 | 443 | } |
dde5845a | 444 | |
880d29f1 JS |
445 | if (item->size <= 2) |
446 | data = (parser->global.usage_page << 16) + data; | |
dde5845a | 447 | |
880d29f1 JS |
448 | parser->local.usage_minimum = data; |
449 | return 0; | |
dde5845a | 450 | |
880d29f1 | 451 | case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM: |
dde5845a | 452 | |
880d29f1 JS |
453 | if (parser->local.delimiter_branch > 1) { |
454 | dbg_hid("alternative usage ignored\n"); | |
dde5845a | 455 | return 0; |
880d29f1 | 456 | } |
dde5845a | 457 | |
880d29f1 JS |
458 | if (item->size <= 2) |
459 | data = (parser->global.usage_page << 16) + data; | |
dde5845a | 460 | |
880d29f1 JS |
461 | for (n = parser->local.usage_minimum; n <= data; n++) |
462 | if (hid_add_usage(parser, n)) { | |
463 | dbg_hid("hid_add_usage failed\n"); | |
464 | return -1; | |
465 | } | |
466 | return 0; | |
467 | ||
468 | default: | |
469 | ||
470 | dbg_hid("unknown local item tag 0x%x\n", item->tag); | |
471 | return 0; | |
dde5845a JK |
472 | } |
473 | return 0; | |
474 | } | |
475 | ||
476 | /* | |
477 | * Process a main item. | |
478 | */ | |
479 | ||
480 | static 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) { | |
880d29f1 JS |
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_hid("unknown main item tag 0x%x\n", item->tag); | |
505 | ret = 0; | |
dde5845a JK |
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 | ||
517 | static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item) | |
518 | { | |
58037eb9 | 519 | dbg_hid("reserved item type, tag 0x%x\n", item->tag); |
dde5845a JK |
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 | ||
529 | static 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 | ||
85cdaf52 | 542 | static void hid_device_release(struct device *dev) |
dde5845a | 543 | { |
85cdaf52 JS |
544 | struct hid_device *device = container_of(dev, struct hid_device, dev); |
545 | unsigned i, j; | |
dde5845a JK |
546 | |
547 | for (i = 0; i < HID_REPORT_TYPES; i++) { | |
548 | struct hid_report_enum *report_enum = device->report_enum + i; | |
549 | ||
550 | for (j = 0; j < 256; j++) { | |
551 | struct hid_report *report = report_enum->report_id_hash[j]; | |
552 | if (report) | |
553 | hid_free_report(report); | |
554 | } | |
555 | } | |
556 | ||
557 | kfree(device->rdesc); | |
767fe787 | 558 | kfree(device->collection); |
dde5845a JK |
559 | kfree(device); |
560 | } | |
561 | ||
562 | /* | |
563 | * Fetch a report description item from the data stream. We support long | |
564 | * items, though they are not used yet. | |
565 | */ | |
566 | ||
567 | static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item) | |
568 | { | |
569 | u8 b; | |
570 | ||
571 | if ((end - start) <= 0) | |
572 | return NULL; | |
573 | ||
574 | b = *start++; | |
575 | ||
576 | item->type = (b >> 2) & 3; | |
577 | item->tag = (b >> 4) & 15; | |
578 | ||
579 | if (item->tag == HID_ITEM_TAG_LONG) { | |
580 | ||
581 | item->format = HID_ITEM_FORMAT_LONG; | |
582 | ||
583 | if ((end - start) < 2) | |
584 | return NULL; | |
585 | ||
586 | item->size = *start++; | |
587 | item->tag = *start++; | |
588 | ||
589 | if ((end - start) < item->size) | |
590 | return NULL; | |
591 | ||
592 | item->data.longdata = start; | |
593 | start += item->size; | |
594 | return start; | |
595 | } | |
596 | ||
597 | item->format = HID_ITEM_FORMAT_SHORT; | |
598 | item->size = b & 3; | |
599 | ||
600 | switch (item->size) { | |
880d29f1 JS |
601 | case 0: |
602 | return start; | |
dde5845a | 603 | |
880d29f1 JS |
604 | case 1: |
605 | if ((end - start) < 1) | |
606 | return NULL; | |
607 | item->data.u8 = *start++; | |
608 | return start; | |
609 | ||
610 | case 2: | |
611 | if ((end - start) < 2) | |
612 | return NULL; | |
613 | item->data.u16 = get_unaligned_le16(start); | |
614 | start = (__u8 *)((__le16 *)start + 1); | |
615 | return start; | |
616 | ||
617 | case 3: | |
618 | item->size++; | |
619 | if ((end - start) < 4) | |
620 | return NULL; | |
621 | item->data.u32 = get_unaligned_le32(start); | |
622 | start = (__u8 *)((__le32 *)start + 1); | |
623 | return start; | |
dde5845a JK |
624 | } |
625 | ||
626 | return NULL; | |
627 | } | |
628 | ||
85cdaf52 JS |
629 | /** |
630 | * hid_parse_report - parse device report | |
631 | * | |
632 | * @device: hid device | |
633 | * @start: report start | |
634 | * @size: report size | |
635 | * | |
dde5845a JK |
636 | * Parse a report description into a hid_device structure. Reports are |
637 | * enumerated, fields are attached to these reports. | |
85cdaf52 | 638 | * 0 returned on success, otherwise nonzero error value. |
dde5845a | 639 | */ |
85cdaf52 JS |
640 | int hid_parse_report(struct hid_device *device, __u8 *start, |
641 | unsigned size) | |
dde5845a | 642 | { |
dde5845a JK |
643 | struct hid_parser *parser; |
644 | struct hid_item item; | |
645 | __u8 *end; | |
85cdaf52 | 646 | int ret; |
dde5845a JK |
647 | static int (*dispatch_type[])(struct hid_parser *parser, |
648 | struct hid_item *item) = { | |
649 | hid_parser_main, | |
650 | hid_parser_global, | |
651 | hid_parser_local, | |
652 | hid_parser_reserved | |
653 | }; | |
654 | ||
c500c971 JS |
655 | if (device->driver->report_fixup) |
656 | device->driver->report_fixup(device, start, size); | |
657 | ||
85cdaf52 JS |
658 | device->rdesc = kmalloc(size, GFP_KERNEL); |
659 | if (device->rdesc == NULL) | |
660 | return -ENOMEM; | |
dde5845a JK |
661 | memcpy(device->rdesc, start, size); |
662 | device->rsize = size; | |
663 | ||
85cdaf52 JS |
664 | parser = vmalloc(sizeof(struct hid_parser)); |
665 | if (!parser) { | |
666 | ret = -ENOMEM; | |
667 | goto err; | |
dde5845a | 668 | } |
85cdaf52 | 669 | |
47a80edb | 670 | memset(parser, 0, sizeof(struct hid_parser)); |
dde5845a JK |
671 | parser->device = device; |
672 | ||
673 | end = start + size; | |
85cdaf52 | 674 | ret = -EINVAL; |
dde5845a JK |
675 | while ((start = fetch_item(start, end, &item)) != NULL) { |
676 | ||
677 | if (item.format != HID_ITEM_FORMAT_SHORT) { | |
58037eb9 | 678 | dbg_hid("unexpected long global item\n"); |
85cdaf52 | 679 | goto err; |
dde5845a JK |
680 | } |
681 | ||
682 | if (dispatch_type[item.type](parser, &item)) { | |
58037eb9 | 683 | dbg_hid("item %u %u %u %u parsing failed\n", |
dde5845a | 684 | item.format, (unsigned)item.size, (unsigned)item.type, (unsigned)item.tag); |
85cdaf52 | 685 | goto err; |
dde5845a JK |
686 | } |
687 | ||
688 | if (start == end) { | |
689 | if (parser->collection_stack_ptr) { | |
58037eb9 | 690 | dbg_hid("unbalanced collection at end of report description\n"); |
85cdaf52 | 691 | goto err; |
dde5845a JK |
692 | } |
693 | if (parser->local.delimiter_depth) { | |
58037eb9 | 694 | dbg_hid("unbalanced delimiter at end of report description\n"); |
85cdaf52 | 695 | goto err; |
dde5845a | 696 | } |
47a80edb | 697 | vfree(parser); |
85cdaf52 | 698 | return 0; |
dde5845a JK |
699 | } |
700 | } | |
701 | ||
58037eb9 | 702 | dbg_hid("item fetching failed at offset %d\n", (int)(end - start)); |
85cdaf52 | 703 | err: |
47a80edb | 704 | vfree(parser); |
85cdaf52 | 705 | return ret; |
dde5845a | 706 | } |
229695e5 | 707 | EXPORT_SYMBOL_GPL(hid_parse_report); |
dde5845a JK |
708 | |
709 | /* | |
710 | * Convert a signed n-bit integer to signed 32-bit integer. Common | |
711 | * cases are done through the compiler, the screwed things has to be | |
712 | * done by hand. | |
713 | */ | |
714 | ||
715 | static s32 snto32(__u32 value, unsigned n) | |
716 | { | |
717 | switch (n) { | |
880d29f1 JS |
718 | case 8: return ((__s8)value); |
719 | case 16: return ((__s16)value); | |
720 | case 32: return ((__s32)value); | |
dde5845a JK |
721 | } |
722 | return value & (1 << (n - 1)) ? value | (-1 << n) : value; | |
723 | } | |
724 | ||
725 | /* | |
726 | * Convert a signed 32-bit integer to a signed n-bit integer. | |
727 | */ | |
728 | ||
729 | static u32 s32ton(__s32 value, unsigned n) | |
730 | { | |
731 | s32 a = value >> (n - 1); | |
732 | if (a && a != -1) | |
733 | return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1; | |
734 | return value & ((1 << n) - 1); | |
735 | } | |
736 | ||
737 | /* | |
738 | * Extract/implement a data field from/to a little endian report (bit array). | |
739 | * | |
740 | * Code sort-of follows HID spec: | |
741 | * http://www.usb.org/developers/devclass_docs/HID1_11.pdf | |
742 | * | |
743 | * While the USB HID spec allows unlimited length bit fields in "report | |
744 | * descriptors", most devices never use more than 16 bits. | |
745 | * One model of UPS is claimed to report "LINEV" as a 32-bit field. | |
746 | * Search linux-kernel and linux-usb-devel archives for "hid-core extract". | |
747 | */ | |
748 | ||
749 | static __inline__ __u32 extract(__u8 *report, unsigned offset, unsigned n) | |
750 | { | |
751 | u64 x; | |
752 | ||
c4124c9b JK |
753 | if (n > 32) |
754 | printk(KERN_WARNING "HID: extract() called with n (%d) > 32! (%s)\n", | |
755 | n, current->comm); | |
dde5845a JK |
756 | |
757 | report += offset >> 3; /* adjust byte index */ | |
229695e5 | 758 | offset &= 7; /* now only need bit offset into one byte */ |
c105068f | 759 | x = get_unaligned_le64(report); |
229695e5 | 760 | x = (x >> offset) & ((1ULL << n) - 1); /* extract bit field */ |
dde5845a JK |
761 | return (u32) x; |
762 | } | |
763 | ||
764 | /* | |
765 | * "implement" : set bits in a little endian bit stream. | |
766 | * Same concepts as "extract" (see comments above). | |
767 | * The data mangled in the bit stream remains in little endian | |
768 | * order the whole time. It make more sense to talk about | |
769 | * endianness of register values by considering a register | |
770 | * a "cached" copy of the little endiad bit stream. | |
771 | */ | |
772 | static __inline__ void implement(__u8 *report, unsigned offset, unsigned n, __u32 value) | |
773 | { | |
6f0168d2 | 774 | u64 x; |
dde5845a JK |
775 | u64 m = (1ULL << n) - 1; |
776 | ||
c4124c9b JK |
777 | if (n > 32) |
778 | printk(KERN_WARNING "HID: implement() called with n (%d) > 32! (%s)\n", | |
779 | n, current->comm); | |
dde5845a | 780 | |
c4124c9b JK |
781 | if (value > m) |
782 | printk(KERN_WARNING "HID: implement() called with too large value %d! (%s)\n", | |
783 | value, current->comm); | |
dde5845a JK |
784 | WARN_ON(value > m); |
785 | value &= m; | |
786 | ||
787 | report += offset >> 3; | |
788 | offset &= 7; | |
789 | ||
6f0168d2 HH |
790 | x = get_unaligned_le64(report); |
791 | x &= ~(m << offset); | |
792 | x |= ((u64)value) << offset; | |
793 | put_unaligned_le64(x, report); | |
dde5845a JK |
794 | } |
795 | ||
796 | /* | |
797 | * Search an array for a value. | |
798 | */ | |
799 | ||
800 | static __inline__ int search(__s32 *array, __s32 value, unsigned n) | |
801 | { | |
802 | while (n--) { | |
803 | if (*array++ == value) | |
804 | return 0; | |
805 | } | |
806 | return -1; | |
807 | } | |
808 | ||
85cdaf52 JS |
809 | /** |
810 | * hid_match_report - check if driver's raw_event should be called | |
811 | * | |
812 | * @hid: hid device | |
813 | * @report_type: type to match against | |
814 | * | |
815 | * compare hid->driver->report_table->report_type to report->type | |
816 | */ | |
817 | static int hid_match_report(struct hid_device *hid, struct hid_report *report) | |
dde5845a | 818 | { |
85cdaf52 JS |
819 | const struct hid_report_id *id = hid->driver->report_table; |
820 | ||
821 | if (!id) /* NULL means all */ | |
822 | return 1; | |
823 | ||
824 | for (; id->report_type != HID_TERMINATOR; id++) | |
825 | if (id->report_type == HID_ANY_ID || | |
826 | id->report_type == report->type) | |
827 | return 1; | |
828 | return 0; | |
829 | } | |
830 | ||
831 | /** | |
832 | * hid_match_usage - check if driver's event should be called | |
833 | * | |
834 | * @hid: hid device | |
835 | * @usage: usage to match against | |
836 | * | |
837 | * compare hid->driver->usage_table->usage_{type,code} to | |
838 | * usage->usage_{type,code} | |
839 | */ | |
840 | static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage) | |
841 | { | |
842 | const struct hid_usage_id *id = hid->driver->usage_table; | |
843 | ||
844 | if (!id) /* NULL means all */ | |
845 | return 1; | |
846 | ||
847 | for (; id->usage_type != HID_ANY_ID - 1; id++) | |
848 | if ((id->usage_hid == HID_ANY_ID || | |
849 | id->usage_hid == usage->hid) && | |
850 | (id->usage_type == HID_ANY_ID || | |
851 | id->usage_type == usage->type) && | |
852 | (id->usage_code == HID_ANY_ID || | |
853 | id->usage_code == usage->code)) | |
854 | return 1; | |
855 | return 0; | |
856 | } | |
857 | ||
858 | static void hid_process_event(struct hid_device *hid, struct hid_field *field, | |
859 | struct hid_usage *usage, __s32 value, int interrupt) | |
860 | { | |
861 | struct hid_driver *hdrv = hid->driver; | |
862 | int ret; | |
863 | ||
dde5845a | 864 | hid_dump_input(usage, value); |
85cdaf52 JS |
865 | |
866 | if (hdrv && hdrv->event && hid_match_usage(hid, usage)) { | |
867 | ret = hdrv->event(hid, field, usage, value); | |
868 | if (ret != 0) { | |
869 | if (ret < 0) | |
870 | dbg_hid("%s's event failed with %d\n", | |
871 | hdrv->name, ret); | |
872 | return; | |
873 | } | |
874 | } | |
875 | ||
dde5845a JK |
876 | if (hid->claimed & HID_CLAIMED_INPUT) |
877 | hidinput_hid_event(hid, field, usage, value); | |
aa938f79 JK |
878 | if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event) |
879 | hid->hiddev_hid_event(hid, field, usage, value); | |
dde5845a JK |
880 | } |
881 | ||
882 | /* | |
883 | * Analyse a received field, and fetch the data from it. The field | |
884 | * content is stored for next report processing (we do differential | |
885 | * reporting to the layer). | |
886 | */ | |
887 | ||
abdff0f7 AB |
888 | static void hid_input_field(struct hid_device *hid, struct hid_field *field, |
889 | __u8 *data, int interrupt) | |
dde5845a JK |
890 | { |
891 | unsigned n; | |
892 | unsigned count = field->report_count; | |
893 | unsigned offset = field->report_offset; | |
894 | unsigned size = field->report_size; | |
895 | __s32 min = field->logical_minimum; | |
896 | __s32 max = field->logical_maximum; | |
897 | __s32 *value; | |
898 | ||
899 | if (!(value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC))) | |
900 | return; | |
901 | ||
902 | for (n = 0; n < count; n++) { | |
903 | ||
904 | value[n] = min < 0 ? snto32(extract(data, offset + n * size, size), size) : | |
905 | extract(data, offset + n * size, size); | |
906 | ||
907 | if (!(field->flags & HID_MAIN_ITEM_VARIABLE) /* Ignore report if ErrorRollOver */ | |
908 | && value[n] >= min && value[n] <= max | |
909 | && field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1) | |
910 | goto exit; | |
911 | } | |
912 | ||
913 | for (n = 0; n < count; n++) { | |
914 | ||
915 | if (HID_MAIN_ITEM_VARIABLE & field->flags) { | |
916 | hid_process_event(hid, field, &field->usage[n], value[n], interrupt); | |
917 | continue; | |
918 | } | |
919 | ||
920 | if (field->value[n] >= min && field->value[n] <= max | |
921 | && field->usage[field->value[n] - min].hid | |
922 | && search(value, field->value[n], count)) | |
923 | hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt); | |
924 | ||
925 | if (value[n] >= min && value[n] <= max | |
926 | && field->usage[value[n] - min].hid | |
927 | && search(field->value, value[n], count)) | |
928 | hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt); | |
929 | } | |
930 | ||
931 | memcpy(field->value, value, count * sizeof(__s32)); | |
932 | exit: | |
933 | kfree(value); | |
934 | } | |
dde5845a JK |
935 | |
936 | /* | |
937 | * Output the field into the report. | |
938 | */ | |
939 | ||
940 | static void hid_output_field(struct hid_field *field, __u8 *data) | |
941 | { | |
942 | unsigned count = field->report_count; | |
943 | unsigned offset = field->report_offset; | |
944 | unsigned size = field->report_size; | |
46386b58 | 945 | unsigned bitsused = offset + count * size; |
dde5845a JK |
946 | unsigned n; |
947 | ||
46386b58 SB |
948 | /* make sure the unused bits in the last byte are zeros */ |
949 | if (count > 0 && size > 0 && (bitsused % 8) != 0) | |
950 | data[(bitsused-1)/8] &= (1 << (bitsused % 8)) - 1; | |
951 | ||
dde5845a JK |
952 | for (n = 0; n < count; n++) { |
953 | if (field->logical_minimum < 0) /* signed values */ | |
954 | implement(data, offset + n * size, size, s32ton(field->value[n], size)); | |
955 | else /* unsigned values */ | |
956 | implement(data, offset + n * size, size, field->value[n]); | |
957 | } | |
958 | } | |
959 | ||
960 | /* | |
961 | * Create a report. | |
962 | */ | |
963 | ||
229695e5 | 964 | void hid_output_report(struct hid_report *report, __u8 *data) |
dde5845a JK |
965 | { |
966 | unsigned n; | |
967 | ||
968 | if (report->id > 0) | |
969 | *data++ = report->id; | |
970 | ||
971 | for (n = 0; n < report->maxfield; n++) | |
972 | hid_output_field(report->field[n], data); | |
973 | } | |
229695e5 | 974 | EXPORT_SYMBOL_GPL(hid_output_report); |
dde5845a JK |
975 | |
976 | /* | |
977 | * Set a field value. The report this field belongs to has to be | |
978 | * created and transferred to the device, to set this value in the | |
979 | * device. | |
980 | */ | |
981 | ||
982 | int hid_set_field(struct hid_field *field, unsigned offset, __s32 value) | |
983 | { | |
984 | unsigned size = field->report_size; | |
985 | ||
986 | hid_dump_input(field->usage + offset, value); | |
987 | ||
988 | if (offset >= field->report_count) { | |
58037eb9 | 989 | dbg_hid("offset (%d) exceeds report_count (%d)\n", offset, field->report_count); |
dde5845a JK |
990 | hid_dump_field(field, 8); |
991 | return -1; | |
992 | } | |
993 | if (field->logical_minimum < 0) { | |
994 | if (value != snto32(s32ton(value, size), size)) { | |
58037eb9 | 995 | dbg_hid("value %d is out of range\n", value); |
dde5845a JK |
996 | return -1; |
997 | } | |
998 | } | |
999 | field->value[offset] = value; | |
1000 | return 0; | |
1001 | } | |
229695e5 | 1002 | EXPORT_SYMBOL_GPL(hid_set_field); |
dde5845a | 1003 | |
85cdaf52 JS |
1004 | static struct hid_report *hid_get_report(struct hid_report_enum *report_enum, |
1005 | const u8 *data) | |
aa8de2f0 | 1006 | { |
aa8de2f0 | 1007 | struct hid_report *report; |
85cdaf52 | 1008 | unsigned int n = 0; /* Normally report number is 0 */ |
aa8de2f0 | 1009 | |
85cdaf52 JS |
1010 | /* Device uses numbered reports, data[0] is report number */ |
1011 | if (report_enum->numbered) | |
1012 | n = *data; | |
aa8de2f0 | 1013 | |
85cdaf52 JS |
1014 | report = report_enum->report_id_hash[n]; |
1015 | if (report == NULL) | |
1016 | dbg_hid("undefined report_id %u received\n", n); | |
aa8de2f0 | 1017 | |
85cdaf52 JS |
1018 | return report; |
1019 | } | |
aa8de2f0 | 1020 | |
85cdaf52 JS |
1021 | void hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size, |
1022 | int interrupt) | |
1023 | { | |
1024 | struct hid_report_enum *report_enum = hid->report_enum + type; | |
1025 | struct hid_report *report; | |
1026 | unsigned int a; | |
1027 | int rsize, csize = size; | |
1028 | u8 *cdata = data; | |
aa8de2f0 | 1029 | |
85cdaf52 JS |
1030 | report = hid_get_report(report_enum, data); |
1031 | if (!report) | |
1032 | return; | |
aa8de2f0 | 1033 | |
85cdaf52 JS |
1034 | if (report_enum->numbered) { |
1035 | cdata++; | |
1036 | csize--; | |
aa8de2f0 JK |
1037 | } |
1038 | ||
1039 | rsize = ((report->size - 1) >> 3) + 1; | |
1040 | ||
85cdaf52 JS |
1041 | if (csize < rsize) { |
1042 | dbg_hid("report %d is too short, (%d < %d)\n", report->id, | |
1043 | csize, rsize); | |
1044 | memset(cdata + csize, 0, rsize - csize); | |
aa8de2f0 JK |
1045 | } |
1046 | ||
1047 | if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event) | |
1048 | hid->hiddev_report_event(hid, report); | |
b54ec3c1 JK |
1049 | if (hid->claimed & HID_CLAIMED_HIDRAW) { |
1050 | /* numbered reports need to be passed with the report num */ | |
1051 | if (report_enum->numbered) | |
1052 | hidraw_report_event(hid, data - 1, size + 1); | |
1053 | else | |
1054 | hidraw_report_event(hid, data, size); | |
1055 | } | |
aa8de2f0 | 1056 | |
85cdaf52 JS |
1057 | for (a = 0; a < report->maxfield; a++) |
1058 | hid_input_field(hid, report->field[a], cdata, interrupt); | |
aa8de2f0 JK |
1059 | |
1060 | if (hid->claimed & HID_CLAIMED_INPUT) | |
1061 | hidinput_report_event(hid, report); | |
85cdaf52 JS |
1062 | } |
1063 | EXPORT_SYMBOL_GPL(hid_report_raw_event); | |
1064 | ||
1065 | /** | |
1066 | * hid_input_report - report data from lower layer (usb, bt...) | |
1067 | * | |
1068 | * @hid: hid device | |
1069 | * @type: HID report type (HID_*_REPORT) | |
1070 | * @data: report contents | |
1071 | * @size: size of data parameter | |
1072 | * @interrupt: called from atomic? | |
1073 | * | |
1074 | * This is data entry for lower layers. | |
1075 | */ | |
1076 | int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt) | |
1077 | { | |
1078 | struct hid_report_enum *report_enum = hid->report_enum + type; | |
1079 | struct hid_driver *hdrv = hid->driver; | |
1080 | struct hid_report *report; | |
1081 | unsigned int i; | |
1082 | int ret; | |
1083 | ||
1084 | if (!hid || !hid->driver) | |
1085 | return -ENODEV; | |
1086 | ||
1087 | if (!size) { | |
1088 | dbg_hid("empty report\n"); | |
1089 | return -1; | |
1090 | } | |
1091 | ||
1092 | dbg_hid("report (size %u) (%snumbered)\n", size, report_enum->numbered ? "" : "un"); | |
1093 | ||
1094 | report = hid_get_report(report_enum, data); | |
1095 | if (!report) | |
1096 | return -1; | |
1097 | ||
1098 | /* dump the report */ | |
1099 | dbg_hid("report %d (size %u) = ", report->id, size); | |
1100 | for (i = 0; i < size; i++) | |
1101 | dbg_hid_line(" %02x", data[i]); | |
1102 | dbg_hid_line("\n"); | |
1103 | ||
1104 | if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) { | |
1105 | ret = hdrv->raw_event(hid, report, data, size); | |
1106 | if (ret != 0) | |
1107 | return ret < 0 ? ret : 0; | |
1108 | } | |
1109 | ||
1110 | hid_report_raw_event(hid, type, data, size, interrupt); | |
aa8de2f0 JK |
1111 | |
1112 | return 0; | |
1113 | } | |
1114 | EXPORT_SYMBOL_GPL(hid_input_report); | |
1115 | ||
0f37cd03 JK |
1116 | static bool hid_match_one_id(struct hid_device *hdev, |
1117 | const struct hid_device_id *id) | |
1118 | { | |
1119 | return id->bus == hdev->bus && | |
1120 | (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) && | |
1121 | (id->product == HID_ANY_ID || id->product == hdev->product); | |
1122 | } | |
1123 | ||
1124 | static const struct hid_device_id *hid_match_id(struct hid_device *hdev, | |
1125 | const struct hid_device_id *id) | |
1126 | { | |
1127 | for (; id->bus; id++) | |
1128 | if (hid_match_one_id(hdev, id)) | |
1129 | return id; | |
1130 | ||
1131 | return NULL; | |
1132 | } | |
1133 | ||
1134 | static const struct hid_device_id hid_hiddev_list[] = { | |
c0bd6a42 RH |
1135 | { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) }, |
1136 | { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) }, | |
0f37cd03 JK |
1137 | { } |
1138 | }; | |
1139 | ||
1140 | static bool hid_hiddev(struct hid_device *hdev) | |
1141 | { | |
1142 | return !!hid_match_id(hdev, hid_hiddev_list); | |
1143 | } | |
1144 | ||
93c10132 JS |
1145 | int hid_connect(struct hid_device *hdev, unsigned int connect_mask) |
1146 | { | |
1147 | static const char *types[] = { "Device", "Pointer", "Mouse", "Device", | |
1148 | "Joystick", "Gamepad", "Keyboard", "Keypad", | |
1149 | "Multi-Axis Controller" | |
1150 | }; | |
1151 | const char *type, *bus; | |
1152 | char buf[64]; | |
1153 | unsigned int i; | |
1154 | int len; | |
1155 | ||
1156 | if (hdev->bus != BUS_USB) | |
1157 | connect_mask &= ~HID_CONNECT_HIDDEV; | |
0f37cd03 JK |
1158 | if (hid_hiddev(hdev)) |
1159 | connect_mask |= HID_CONNECT_HIDDEV_FORCE; | |
93c10132 JS |
1160 | |
1161 | if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev, | |
1162 | connect_mask & HID_CONNECT_HIDINPUT_FORCE)) | |
1163 | hdev->claimed |= HID_CLAIMED_INPUT; | |
1164 | if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect && | |
1165 | !hdev->hiddev_connect(hdev, | |
1166 | connect_mask & HID_CONNECT_HIDDEV_FORCE)) | |
1167 | hdev->claimed |= HID_CLAIMED_HIDDEV; | |
1168 | if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev)) | |
1169 | hdev->claimed |= HID_CLAIMED_HIDRAW; | |
1170 | ||
1171 | if (!hdev->claimed) { | |
1172 | dev_err(&hdev->dev, "claimed by neither input, hiddev nor " | |
1173 | "hidraw\n"); | |
1174 | return -ENODEV; | |
1175 | } | |
1176 | ||
1177 | if ((hdev->claimed & HID_CLAIMED_INPUT) && | |
1178 | (connect_mask & HID_CONNECT_FF) && hdev->ff_init) | |
1179 | hdev->ff_init(hdev); | |
1180 | ||
1181 | len = 0; | |
1182 | if (hdev->claimed & HID_CLAIMED_INPUT) | |
1183 | len += sprintf(buf + len, "input"); | |
1184 | if (hdev->claimed & HID_CLAIMED_HIDDEV) | |
1185 | len += sprintf(buf + len, "%shiddev%d", len ? "," : "", | |
1186 | hdev->minor); | |
1187 | if (hdev->claimed & HID_CLAIMED_HIDRAW) | |
1188 | len += sprintf(buf + len, "%shidraw%d", len ? "," : "", | |
1189 | ((struct hidraw *)hdev->hidraw)->minor); | |
1190 | ||
1191 | type = "Device"; | |
1192 | for (i = 0; i < hdev->maxcollection; i++) { | |
1193 | struct hid_collection *col = &hdev->collection[i]; | |
1194 | if (col->type == HID_COLLECTION_APPLICATION && | |
1195 | (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK && | |
1196 | (col->usage & 0xffff) < ARRAY_SIZE(types)) { | |
1197 | type = types[col->usage & 0xffff]; | |
1198 | break; | |
1199 | } | |
1200 | } | |
1201 | ||
1202 | switch (hdev->bus) { | |
1203 | case BUS_USB: | |
1204 | bus = "USB"; | |
1205 | break; | |
1206 | case BUS_BLUETOOTH: | |
1207 | bus = "BLUETOOTH"; | |
1208 | break; | |
1209 | default: | |
1210 | bus = "<UNKNOWN>"; | |
1211 | } | |
1212 | ||
1213 | dev_info(&hdev->dev, "%s: %s HID v%x.%02x %s [%s] on %s\n", | |
1214 | buf, bus, hdev->version >> 8, hdev->version & 0xff, | |
1215 | type, hdev->name, hdev->phys); | |
1216 | ||
1217 | return 0; | |
1218 | } | |
1219 | EXPORT_SYMBOL_GPL(hid_connect); | |
1220 | ||
85cdaf52 | 1221 | static const struct hid_device_id hid_blacklist[] = { |
14a21cd4 JS |
1222 | { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) }, |
1223 | { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) }, | |
df9bcace | 1224 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ATV_IRCONTROL) }, |
8c19a515 JS |
1225 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) }, |
1226 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) }, | |
1227 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) }, | |
1228 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) }, | |
1229 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) }, | |
1230 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) }, | |
1231 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) }, | |
1232 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) }, | |
1233 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) }, | |
1234 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) }, | |
1235 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) }, | |
1236 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) }, | |
1237 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) }, | |
1238 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) }, | |
1239 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) }, | |
1240 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) }, | |
1241 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) }, | |
1242 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) }, | |
1243 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) }, | |
1244 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) }, | |
1245 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) }, | |
1246 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) }, | |
1247 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) }, | |
1248 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) }, | |
1249 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) }, | |
1250 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) }, | |
1251 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) }, | |
1252 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) }, | |
1253 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) }, | |
1254 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) }, | |
ffcf70fb | 1255 | { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) }, |
b5635b12 | 1256 | { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) }, |
a48c65b3 | 1257 | { HID_USB_DEVICE(USB_VENDOR_ID_BRIGHT, USB_DEVICE_ID_BRIGHT_ABNT2) }, |
3b239cd7 | 1258 | { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) }, |
fcfacfd3 | 1259 | { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) }, |
0f221320 JS |
1260 | { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) }, |
1261 | { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) }, | |
1262 | { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) }, | |
fea6f183 | 1263 | { HID_USB_DEVICE(USB_VENDOR_ID_DELL, USB_DEVICE_ID_DELL_W7658) }, |
0dc49168 | 1264 | { HID_USB_DEVICE(USB_VENDOR_ID_DELL, USB_DEVICE_ID_DELL_SK8115) }, |
1f243e30 | 1265 | { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) }, |
949f8fef | 1266 | { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) }, |
1e093206 | 1267 | { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) }, |
b5635b12 | 1268 | { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) }, |
5f22a799 JS |
1269 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) }, |
1270 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) }, | |
1271 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) }, | |
1272 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) }, | |
1273 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) }, | |
1274 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) }, | |
1275 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) }, | |
1276 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_KBD) }, | |
1277 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) }, | |
1278 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) }, | |
5f22a799 JS |
1279 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) }, |
1280 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) }, | |
606bd0a8 JS |
1281 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) }, |
1282 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) }, | |
1283 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) }, | |
1284 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) }, | |
1285 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) }, | |
1286 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) }, | |
1287 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) }, | |
78a849a6 JS |
1288 | { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) }, |
1289 | { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) }, | |
1290 | { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) }, | |
1291 | { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) }, | |
1292 | { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) }, | |
3b8006e5 | 1293 | { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) }, |
1e762532 | 1294 | { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) }, |
980a3da6 | 1295 | { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) }, |
bd28ce00 | 1296 | { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) }, |
90231e7e | 1297 | { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) }, |
8c19a515 JS |
1298 | |
1299 | { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, 0x030c) }, | |
78a849a6 | 1300 | { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) }, |
85cdaf52 JS |
1301 | { } |
1302 | }; | |
1303 | ||
1304 | static int hid_bus_match(struct device *dev, struct device_driver *drv) | |
1305 | { | |
1306 | struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver); | |
1307 | struct hid_device *hdev = container_of(dev, struct hid_device, dev); | |
1308 | ||
1309 | if (!hid_match_id(hdev, hdrv->id_table)) | |
1310 | return 0; | |
1311 | ||
1312 | /* generic wants all non-blacklisted */ | |
1313 | if (!strncmp(hdrv->name, "generic-", 8)) | |
1314 | return !hid_match_id(hdev, hid_blacklist); | |
1315 | ||
1316 | return 1; | |
1317 | } | |
1318 | ||
1319 | static int hid_device_probe(struct device *dev) | |
1320 | { | |
1321 | struct hid_driver *hdrv = container_of(dev->driver, | |
1322 | struct hid_driver, driver); | |
1323 | struct hid_device *hdev = container_of(dev, struct hid_device, dev); | |
1324 | const struct hid_device_id *id; | |
1325 | int ret = 0; | |
1326 | ||
1327 | if (!hdev->driver) { | |
c500c971 JS |
1328 | id = hid_match_id(hdev, hdrv->id_table); |
1329 | if (id == NULL) | |
1330 | return -ENODEV; | |
85cdaf52 | 1331 | |
c500c971 JS |
1332 | hdev->driver = hdrv; |
1333 | if (hdrv->probe) { | |
1334 | ret = hdrv->probe(hdev, id); | |
1335 | } else { /* default probe */ | |
1336 | ret = hid_parse(hdev); | |
1337 | if (!ret) | |
93c10132 | 1338 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); |
85cdaf52 | 1339 | } |
c500c971 JS |
1340 | if (ret) |
1341 | hdev->driver = NULL; | |
85cdaf52 JS |
1342 | } |
1343 | return ret; | |
1344 | } | |
1345 | ||
1346 | static int hid_device_remove(struct device *dev) | |
1347 | { | |
1348 | struct hid_device *hdev = container_of(dev, struct hid_device, dev); | |
1349 | struct hid_driver *hdrv = hdev->driver; | |
1350 | ||
1351 | if (hdrv) { | |
1352 | if (hdrv->remove) | |
1353 | hdrv->remove(hdev); | |
c500c971 JS |
1354 | else /* default remove */ |
1355 | hid_hw_stop(hdev); | |
85cdaf52 JS |
1356 | hdev->driver = NULL; |
1357 | } | |
1358 | ||
1359 | return 0; | |
1360 | } | |
1361 | ||
1362 | static int hid_uevent(struct device *dev, struct kobj_uevent_env *env) | |
1363 | { | |
1364 | struct hid_device *hdev = container_of(dev, struct hid_device, dev); | |
1365 | ||
1366 | if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X", | |
1367 | hdev->bus, hdev->vendor, hdev->product)) | |
1368 | return -ENOMEM; | |
1369 | ||
1370 | if (add_uevent_var(env, "HID_NAME=%s", hdev->name)) | |
1371 | return -ENOMEM; | |
1372 | ||
1373 | if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys)) | |
1374 | return -ENOMEM; | |
1375 | ||
1376 | if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq)) | |
1377 | return -ENOMEM; | |
1378 | ||
1379 | if (add_uevent_var(env, "MODALIAS=hid:b%04Xv%08Xp%08X", | |
1380 | hdev->bus, hdev->vendor, hdev->product)) | |
1381 | return -ENOMEM; | |
1382 | ||
1383 | return 0; | |
1384 | } | |
1385 | ||
1386 | static struct bus_type hid_bus_type = { | |
1387 | .name = "hid", | |
1388 | .match = hid_bus_match, | |
1389 | .probe = hid_device_probe, | |
1390 | .remove = hid_device_remove, | |
1391 | .uevent = hid_uevent, | |
1392 | }; | |
1393 | ||
d458a9df JS |
1394 | static const struct hid_device_id hid_ignore_list[] = { |
1395 | { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) }, | |
1396 | { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) }, | |
1397 | { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) }, | |
1398 | { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) }, | |
1399 | { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) }, | |
1400 | { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) }, | |
1401 | { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) }, | |
1402 | { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) }, | |
1403 | { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) }, | |
1404 | { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) }, | |
1405 | { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) }, | |
1406 | { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) }, | |
1407 | { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_LCM)}, | |
1408 | { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) }, | |
1409 | { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) }, | |
1410 | { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) }, | |
1411 | { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) }, | |
1412 | { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) }, | |
1413 | { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) }, | |
1414 | { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) }, | |
1415 | { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) }, | |
1416 | { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) }, | |
5f022298 | 1417 | { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) }, |
d458a9df JS |
1418 | { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) }, |
1419 | { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) }, | |
1420 | { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0003) }, | |
1421 | { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) }, | |
1422 | { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) }, | |
1423 | { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) }, | |
1424 | { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) }, | |
1425 | { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) }, | |
1426 | { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) }, | |
1427 | { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) }, | |
1428 | { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) }, | |
1429 | { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) }, | |
1430 | { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) }, | |
1431 | { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) }, | |
1432 | { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) }, | |
5f022298 | 1433 | { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) }, |
d458a9df JS |
1434 | { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) }, |
1435 | { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) }, | |
1436 | { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) }, | |
1437 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) }, | |
1438 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) }, | |
1439 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) }, | |
1440 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) }, | |
1441 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) }, | |
1442 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) }, | |
1443 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) }, | |
1444 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) }, | |
1445 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) }, | |
1446 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) }, | |
1447 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) }, | |
1448 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) }, | |
1449 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) }, | |
1450 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) }, | |
1451 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) }, | |
1452 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) }, | |
1453 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) }, | |
1454 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) }, | |
1455 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) }, | |
1456 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) }, | |
1457 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) }, | |
1458 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) }, | |
1459 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) }, | |
1460 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) }, | |
1461 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) }, | |
1462 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) }, | |
1463 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) }, | |
1464 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) }, | |
1465 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) }, | |
1466 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) }, | |
1467 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) }, | |
1468 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) }, | |
1469 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) }, | |
1470 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) }, | |
1471 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) }, | |
1472 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) }, | |
1473 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) }, | |
1474 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) }, | |
1475 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) }, | |
1476 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) }, | |
1477 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) }, | |
1478 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) }, | |
1479 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) }, | |
1480 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) }, | |
1481 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) }, | |
1482 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) }, | |
1483 | { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) }, | |
1484 | { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) }, | |
1485 | { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) }, | |
1486 | { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) }, | |
1487 | { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) }, | |
1488 | { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) }, | |
1489 | { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) }, | |
1490 | { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) }, | |
1491 | { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) }, | |
1492 | { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY1) }, | |
1493 | { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) }, | |
1494 | { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) }, | |
1495 | { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) }, | |
1496 | { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) }, | |
1497 | { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) }, | |
1498 | { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) }, | |
1499 | { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) }, | |
1500 | { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) }, | |
1501 | { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) }, | |
d458a9df JS |
1502 | { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) }, |
1503 | { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) }, | |
1504 | { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) }, | |
1505 | { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) }, | |
1506 | { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) }, | |
1507 | { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) }, | |
1508 | { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) }, | |
1509 | { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) }, | |
1510 | { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) }, | |
1511 | { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) }, | |
1512 | { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) }, | |
1513 | { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) }, | |
1514 | { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) }, | |
1515 | { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) }, | |
1516 | { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) }, | |
1517 | { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) }, | |
1518 | { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) }, | |
1519 | { HID_USB_DEVICE(USB_VENDOR_ID_SOUNDGRAPH, USB_DEVICE_ID_SOUNDGRAPH_IMON_LCD) }, | |
24c88eb6 JW |
1520 | { HID_USB_DEVICE(USB_VENDOR_ID_SOUNDGRAPH, USB_DEVICE_ID_SOUNDGRAPH_IMON_LCD2) }, |
1521 | { HID_USB_DEVICE(USB_VENDOR_ID_SOUNDGRAPH, USB_DEVICE_ID_SOUNDGRAPH_IMON_LCD3) }, | |
d1d3a5f6 RC |
1522 | { HID_USB_DEVICE(USB_VENDOR_ID_TENX, USB_DEVICE_ID_TENX_IBUDDY1) }, |
1523 | { HID_USB_DEVICE(USB_VENDOR_ID_TENX, USB_DEVICE_ID_TENX_IBUDDY2) }, | |
10e41a71 JS |
1524 | { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) }, |
1525 | { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) }, | |
1526 | { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) }, | |
1527 | { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) }, | |
d458a9df JS |
1528 | { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) }, |
1529 | { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) }, | |
1530 | { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) }, | |
1531 | { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) }, | |
1532 | { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) }, | |
1533 | { HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) }, | |
1534 | { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) }, | |
1535 | { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) }, | |
1536 | { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) }, | |
1537 | { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) }, | |
987fbc1f JS |
1538 | { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) }, |
1539 | { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) }, | |
d458a9df JS |
1540 | { } |
1541 | }; | |
1542 | ||
1543 | static bool hid_ignore(struct hid_device *hdev) | |
1544 | { | |
1545 | switch (hdev->vendor) { | |
1546 | case USB_VENDOR_ID_CODEMERCS: | |
1547 | /* ignore all Code Mercenaries IOWarrior devices */ | |
1548 | if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST && | |
1549 | hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST) | |
1550 | return true; | |
1551 | break; | |
1552 | case USB_VENDOR_ID_LOGITECH: | |
1553 | if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST && | |
1554 | hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST) | |
1555 | return true; | |
1556 | break; | |
1557 | } | |
1558 | ||
1559 | return !!hid_match_id(hdev, hid_ignore_list); | |
1560 | } | |
1561 | ||
85cdaf52 JS |
1562 | int hid_add_device(struct hid_device *hdev) |
1563 | { | |
1564 | static atomic_t id = ATOMIC_INIT(0); | |
1565 | int ret; | |
1566 | ||
1567 | if (WARN_ON(hdev->status & HID_STAT_ADDED)) | |
1568 | return -EBUSY; | |
1569 | ||
d458a9df JS |
1570 | /* we need to kill them here, otherwise they will stay allocated to |
1571 | * wait for coming driver */ | |
1572 | if (hid_ignore(hdev)) | |
1573 | return -ENODEV; | |
1574 | ||
85cdaf52 JS |
1575 | /* XXX hack, any other cleaner solution < 20 bus_id bytes? */ |
1576 | sprintf(hdev->dev.bus_id, "%04X:%04X:%04X.%04X", hdev->bus, | |
1577 | hdev->vendor, hdev->product, atomic_inc_return(&id)); | |
1578 | ||
1579 | ret = device_add(&hdev->dev); | |
1580 | if (!ret) | |
1581 | hdev->status |= HID_STAT_ADDED; | |
1582 | ||
1583 | return ret; | |
1584 | } | |
1585 | EXPORT_SYMBOL_GPL(hid_add_device); | |
1586 | ||
1587 | /** | |
1588 | * hid_allocate_device - allocate new hid device descriptor | |
1589 | * | |
1590 | * Allocate and initialize hid device, so that hid_destroy_device might be | |
1591 | * used to free it. | |
1592 | * | |
1593 | * New hid_device pointer is returned on success, otherwise ERR_PTR encoded | |
1594 | * error value. | |
1595 | */ | |
1596 | struct hid_device *hid_allocate_device(void) | |
1597 | { | |
1598 | struct hid_device *hdev; | |
1599 | unsigned int i; | |
1600 | int ret = -ENOMEM; | |
1601 | ||
1602 | hdev = kzalloc(sizeof(*hdev), GFP_KERNEL); | |
1603 | if (hdev == NULL) | |
1604 | return ERR_PTR(ret); | |
1605 | ||
1606 | device_initialize(&hdev->dev); | |
1607 | hdev->dev.release = hid_device_release; | |
1608 | hdev->dev.bus = &hid_bus_type; | |
1609 | ||
1610 | hdev->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS, | |
1611 | sizeof(struct hid_collection), GFP_KERNEL); | |
1612 | if (hdev->collection == NULL) | |
1613 | goto err; | |
1614 | hdev->collection_size = HID_DEFAULT_NUM_COLLECTIONS; | |
1615 | ||
1616 | for (i = 0; i < HID_REPORT_TYPES; i++) | |
1617 | INIT_LIST_HEAD(&hdev->report_enum[i].report_list); | |
1618 | ||
1619 | return hdev; | |
1620 | err: | |
1621 | put_device(&hdev->dev); | |
1622 | return ERR_PTR(ret); | |
1623 | } | |
1624 | EXPORT_SYMBOL_GPL(hid_allocate_device); | |
1625 | ||
1626 | static void hid_remove_device(struct hid_device *hdev) | |
1627 | { | |
1628 | if (hdev->status & HID_STAT_ADDED) { | |
1629 | device_del(&hdev->dev); | |
1630 | hdev->status &= ~HID_STAT_ADDED; | |
1631 | } | |
1632 | } | |
1633 | ||
1634 | /** | |
1635 | * hid_destroy_device - free previously allocated device | |
1636 | * | |
1637 | * @hdev: hid device | |
1638 | * | |
1639 | * If you allocate hid_device through hid_allocate_device, you should ever | |
1640 | * free by this function. | |
1641 | */ | |
1642 | void hid_destroy_device(struct hid_device *hdev) | |
1643 | { | |
1644 | hid_remove_device(hdev); | |
1645 | put_device(&hdev->dev); | |
1646 | } | |
1647 | EXPORT_SYMBOL_GPL(hid_destroy_device); | |
1648 | ||
1649 | int __hid_register_driver(struct hid_driver *hdrv, struct module *owner, | |
1650 | const char *mod_name) | |
1651 | { | |
1652 | hdrv->driver.name = hdrv->name; | |
1653 | hdrv->driver.bus = &hid_bus_type; | |
1654 | hdrv->driver.owner = owner; | |
1655 | hdrv->driver.mod_name = mod_name; | |
1656 | ||
1657 | return driver_register(&hdrv->driver); | |
1658 | } | |
1659 | EXPORT_SYMBOL_GPL(__hid_register_driver); | |
1660 | ||
1661 | void hid_unregister_driver(struct hid_driver *hdrv) | |
1662 | { | |
1663 | driver_unregister(&hdrv->driver); | |
1664 | } | |
1665 | EXPORT_SYMBOL_GPL(hid_unregister_driver); | |
1666 | ||
02ae9a1a JS |
1667 | #ifdef CONFIG_HID_COMPAT |
1668 | static void hid_compat_load(struct work_struct *ws) | |
1669 | { | |
1670 | request_module("hid-dummy"); | |
1671 | } | |
1672 | static DECLARE_WORK(hid_compat_work, hid_compat_load); | |
d92870dd | 1673 | static struct workqueue_struct *hid_compat_wq; |
02ae9a1a JS |
1674 | #endif |
1675 | ||
86166b7b JK |
1676 | static int __init hid_init(void) |
1677 | { | |
85cdaf52 JS |
1678 | int ret; |
1679 | ||
1680 | ret = bus_register(&hid_bus_type); | |
1681 | if (ret) { | |
1682 | printk(KERN_ERR "HID: can't register hid bus\n"); | |
1683 | goto err; | |
1684 | } | |
1685 | ||
1686 | ret = hidraw_init(); | |
1687 | if (ret) | |
1688 | goto err_bus; | |
1689 | ||
02ae9a1a | 1690 | #ifdef CONFIG_HID_COMPAT |
d92870dd JS |
1691 | hid_compat_wq = create_workqueue("hid_compat"); |
1692 | if (!hid_compat_wq) { | |
1693 | hidraw_exit(); | |
1694 | goto err; | |
1695 | } | |
1696 | queue_work(hid_compat_wq, &hid_compat_work); | |
02ae9a1a JS |
1697 | #endif |
1698 | ||
85cdaf52 JS |
1699 | return 0; |
1700 | err_bus: | |
1701 | bus_unregister(&hid_bus_type); | |
1702 | err: | |
1703 | return ret; | |
86166b7b JK |
1704 | } |
1705 | ||
1706 | static void __exit hid_exit(void) | |
1707 | { | |
d92870dd JS |
1708 | #ifdef CONFIG_HID_COMPAT |
1709 | destroy_workqueue(hid_compat_wq); | |
1710 | #endif | |
86166b7b | 1711 | hidraw_exit(); |
85cdaf52 | 1712 | bus_unregister(&hid_bus_type); |
86166b7b JK |
1713 | } |
1714 | ||
1715 | module_init(hid_init); | |
1716 | module_exit(hid_exit); | |
1717 | ||
aa938f79 JK |
1718 | MODULE_LICENSE(DRIVER_LICENSE); |
1719 |