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Commit | Line | Data |
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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 | ||
53149801 | 42 | #define DRIVER_DESC "HID core driver" |
dde5845a JK |
43 | #define DRIVER_LICENSE "GPL" |
44 | ||
58037eb9 | 45 | int hid_debug = 0; |
377e10fb | 46 | module_param_named(debug, hid_debug, int, 0600); |
cd667ce2 | 47 | MODULE_PARM_DESC(debug, "toggle HID debugging messages"); |
58037eb9 | 48 | EXPORT_SYMBOL_GPL(hid_debug); |
58037eb9 | 49 | |
dde5845a JK |
50 | /* |
51 | * Register a new report for a device. | |
52 | */ | |
53 | ||
54 | static struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id) | |
55 | { | |
56 | struct hid_report_enum *report_enum = device->report_enum + type; | |
57 | struct hid_report *report; | |
58 | ||
59 | if (report_enum->report_id_hash[id]) | |
60 | return report_enum->report_id_hash[id]; | |
61 | ||
62 | if (!(report = kzalloc(sizeof(struct hid_report), GFP_KERNEL))) | |
63 | return NULL; | |
64 | ||
65 | if (id != 0) | |
66 | report_enum->numbered = 1; | |
67 | ||
68 | report->id = id; | |
69 | report->type = type; | |
70 | report->size = 0; | |
71 | report->device = device; | |
72 | report_enum->report_id_hash[id] = report; | |
73 | ||
74 | list_add_tail(&report->list, &report_enum->report_list); | |
75 | ||
76 | return report; | |
77 | } | |
78 | ||
79 | /* | |
80 | * Register a new field for this report. | |
81 | */ | |
82 | ||
83 | static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values) | |
84 | { | |
85 | struct hid_field *field; | |
86 | ||
87 | if (report->maxfield == HID_MAX_FIELDS) { | |
58037eb9 | 88 | dbg_hid("too many fields in report\n"); |
dde5845a JK |
89 | return NULL; |
90 | } | |
91 | ||
92 | if (!(field = kzalloc(sizeof(struct hid_field) + usages * sizeof(struct hid_usage) | |
93 | + values * sizeof(unsigned), GFP_KERNEL))) return NULL; | |
94 | ||
95 | field->index = report->maxfield++; | |
96 | report->field[field->index] = field; | |
97 | field->usage = (struct hid_usage *)(field + 1); | |
282bfd4c | 98 | field->value = (s32 *)(field->usage + usages); |
dde5845a JK |
99 | field->report = report; |
100 | ||
101 | return field; | |
102 | } | |
103 | ||
104 | /* | |
105 | * Open a collection. The type/usage is pushed on the stack. | |
106 | */ | |
107 | ||
108 | static int open_collection(struct hid_parser *parser, unsigned type) | |
109 | { | |
110 | struct hid_collection *collection; | |
111 | unsigned usage; | |
112 | ||
113 | usage = parser->local.usage[0]; | |
114 | ||
115 | if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) { | |
58037eb9 | 116 | dbg_hid("collection stack overflow\n"); |
dde5845a JK |
117 | return -1; |
118 | } | |
119 | ||
120 | if (parser->device->maxcollection == parser->device->collection_size) { | |
121 | collection = kmalloc(sizeof(struct hid_collection) * | |
122 | parser->device->collection_size * 2, GFP_KERNEL); | |
123 | if (collection == NULL) { | |
58037eb9 | 124 | dbg_hid("failed to reallocate collection array\n"); |
dde5845a JK |
125 | return -1; |
126 | } | |
127 | memcpy(collection, parser->device->collection, | |
128 | sizeof(struct hid_collection) * | |
129 | parser->device->collection_size); | |
130 | memset(collection + parser->device->collection_size, 0, | |
131 | sizeof(struct hid_collection) * | |
132 | parser->device->collection_size); | |
133 | kfree(parser->device->collection); | |
134 | parser->device->collection = collection; | |
135 | parser->device->collection_size *= 2; | |
136 | } | |
137 | ||
138 | parser->collection_stack[parser->collection_stack_ptr++] = | |
139 | parser->device->maxcollection; | |
140 | ||
141 | collection = parser->device->collection + | |
142 | parser->device->maxcollection++; | |
143 | collection->type = type; | |
144 | collection->usage = usage; | |
145 | collection->level = parser->collection_stack_ptr - 1; | |
146 | ||
147 | if (type == HID_COLLECTION_APPLICATION) | |
148 | parser->device->maxapplication++; | |
149 | ||
150 | return 0; | |
151 | } | |
152 | ||
153 | /* | |
154 | * Close a collection. | |
155 | */ | |
156 | ||
157 | static int close_collection(struct hid_parser *parser) | |
158 | { | |
159 | if (!parser->collection_stack_ptr) { | |
58037eb9 | 160 | dbg_hid("collection stack underflow\n"); |
dde5845a JK |
161 | return -1; |
162 | } | |
163 | parser->collection_stack_ptr--; | |
164 | return 0; | |
165 | } | |
166 | ||
167 | /* | |
168 | * Climb up the stack, search for the specified collection type | |
169 | * and return the usage. | |
170 | */ | |
171 | ||
172 | static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type) | |
173 | { | |
174 | int n; | |
175 | for (n = parser->collection_stack_ptr - 1; n >= 0; n--) | |
176 | if (parser->device->collection[parser->collection_stack[n]].type == type) | |
177 | return parser->device->collection[parser->collection_stack[n]].usage; | |
178 | return 0; /* we know nothing about this usage type */ | |
179 | } | |
180 | ||
181 | /* | |
182 | * Add a usage to the temporary parser table. | |
183 | */ | |
184 | ||
185 | static int hid_add_usage(struct hid_parser *parser, unsigned usage) | |
186 | { | |
187 | if (parser->local.usage_index >= HID_MAX_USAGES) { | |
58037eb9 | 188 | dbg_hid("usage index exceeded\n"); |
dde5845a JK |
189 | return -1; |
190 | } | |
191 | parser->local.usage[parser->local.usage_index] = usage; | |
192 | parser->local.collection_index[parser->local.usage_index] = | |
193 | parser->collection_stack_ptr ? | |
194 | parser->collection_stack[parser->collection_stack_ptr - 1] : 0; | |
195 | parser->local.usage_index++; | |
196 | return 0; | |
197 | } | |
198 | ||
199 | /* | |
200 | * Register a new field for this report. | |
201 | */ | |
202 | ||
203 | static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags) | |
204 | { | |
205 | struct hid_report *report; | |
206 | struct hid_field *field; | |
207 | int usages; | |
208 | unsigned offset; | |
209 | int i; | |
210 | ||
211 | if (!(report = hid_register_report(parser->device, report_type, parser->global.report_id))) { | |
58037eb9 | 212 | dbg_hid("hid_register_report failed\n"); |
dde5845a JK |
213 | return -1; |
214 | } | |
215 | ||
216 | if (parser->global.logical_maximum < parser->global.logical_minimum) { | |
58037eb9 | 217 | dbg_hid("logical range invalid %d %d\n", parser->global.logical_minimum, parser->global.logical_maximum); |
dde5845a JK |
218 | return -1; |
219 | } | |
220 | ||
221 | offset = report->size; | |
222 | report->size += parser->global.report_size * parser->global.report_count; | |
223 | ||
224 | if (!parser->local.usage_index) /* Ignore padding fields */ | |
225 | return 0; | |
226 | ||
227 | usages = max_t(int, parser->local.usage_index, parser->global.report_count); | |
228 | ||
229 | if ((field = hid_register_field(report, usages, parser->global.report_count)) == NULL) | |
230 | return 0; | |
231 | ||
232 | field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL); | |
233 | field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL); | |
234 | field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION); | |
235 | ||
236 | for (i = 0; i < usages; i++) { | |
237 | int j = i; | |
238 | /* Duplicate the last usage we parsed if we have excess values */ | |
239 | if (i >= parser->local.usage_index) | |
240 | j = parser->local.usage_index - 1; | |
241 | field->usage[i].hid = parser->local.usage[j]; | |
242 | field->usage[i].collection_index = | |
243 | parser->local.collection_index[j]; | |
244 | } | |
245 | ||
246 | field->maxusage = usages; | |
247 | field->flags = flags; | |
248 | field->report_offset = offset; | |
249 | field->report_type = report_type; | |
250 | field->report_size = parser->global.report_size; | |
251 | field->report_count = parser->global.report_count; | |
252 | field->logical_minimum = parser->global.logical_minimum; | |
253 | field->logical_maximum = parser->global.logical_maximum; | |
254 | field->physical_minimum = parser->global.physical_minimum; | |
255 | field->physical_maximum = parser->global.physical_maximum; | |
256 | field->unit_exponent = parser->global.unit_exponent; | |
257 | field->unit = parser->global.unit; | |
258 | ||
259 | return 0; | |
260 | } | |
261 | ||
262 | /* | |
263 | * Read data value from item. | |
264 | */ | |
265 | ||
266 | static u32 item_udata(struct hid_item *item) | |
267 | { | |
268 | switch (item->size) { | |
880d29f1 JS |
269 | case 1: return item->data.u8; |
270 | case 2: return item->data.u16; | |
271 | case 4: return item->data.u32; | |
dde5845a JK |
272 | } |
273 | return 0; | |
274 | } | |
275 | ||
276 | static s32 item_sdata(struct hid_item *item) | |
277 | { | |
278 | switch (item->size) { | |
880d29f1 JS |
279 | case 1: return item->data.s8; |
280 | case 2: return item->data.s16; | |
281 | case 4: return item->data.s32; | |
dde5845a JK |
282 | } |
283 | return 0; | |
284 | } | |
285 | ||
286 | /* | |
287 | * Process a global item. | |
288 | */ | |
289 | ||
290 | static int hid_parser_global(struct hid_parser *parser, struct hid_item *item) | |
291 | { | |
292 | switch (item->tag) { | |
880d29f1 | 293 | case HID_GLOBAL_ITEM_TAG_PUSH: |
dde5845a | 294 | |
880d29f1 JS |
295 | if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) { |
296 | dbg_hid("global enviroment stack overflow\n"); | |
297 | return -1; | |
298 | } | |
dde5845a | 299 | |
880d29f1 JS |
300 | memcpy(parser->global_stack + parser->global_stack_ptr++, |
301 | &parser->global, sizeof(struct hid_global)); | |
302 | return 0; | |
dde5845a | 303 | |
880d29f1 | 304 | case HID_GLOBAL_ITEM_TAG_POP: |
dde5845a | 305 | |
880d29f1 JS |
306 | if (!parser->global_stack_ptr) { |
307 | dbg_hid("global enviroment stack underflow\n"); | |
308 | return -1; | |
309 | } | |
dde5845a | 310 | |
880d29f1 JS |
311 | memcpy(&parser->global, parser->global_stack + |
312 | --parser->global_stack_ptr, sizeof(struct hid_global)); | |
313 | return 0; | |
dde5845a | 314 | |
880d29f1 JS |
315 | case HID_GLOBAL_ITEM_TAG_USAGE_PAGE: |
316 | parser->global.usage_page = item_udata(item); | |
317 | return 0; | |
dde5845a | 318 | |
880d29f1 JS |
319 | case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM: |
320 | parser->global.logical_minimum = item_sdata(item); | |
321 | return 0; | |
dde5845a | 322 | |
880d29f1 JS |
323 | case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM: |
324 | if (parser->global.logical_minimum < 0) | |
325 | parser->global.logical_maximum = item_sdata(item); | |
326 | else | |
327 | parser->global.logical_maximum = item_udata(item); | |
328 | return 0; | |
dde5845a | 329 | |
880d29f1 JS |
330 | case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM: |
331 | parser->global.physical_minimum = item_sdata(item); | |
332 | return 0; | |
dde5845a | 333 | |
880d29f1 JS |
334 | case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM: |
335 | if (parser->global.physical_minimum < 0) | |
336 | parser->global.physical_maximum = item_sdata(item); | |
337 | else | |
338 | parser->global.physical_maximum = item_udata(item); | |
339 | return 0; | |
dde5845a | 340 | |
880d29f1 JS |
341 | case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT: |
342 | parser->global.unit_exponent = item_sdata(item); | |
343 | return 0; | |
dde5845a | 344 | |
880d29f1 JS |
345 | case HID_GLOBAL_ITEM_TAG_UNIT: |
346 | parser->global.unit = item_udata(item); | |
347 | return 0; | |
dde5845a | 348 | |
880d29f1 JS |
349 | case HID_GLOBAL_ITEM_TAG_REPORT_SIZE: |
350 | parser->global.report_size = item_udata(item); | |
351 | if (parser->global.report_size > 32) { | |
352 | dbg_hid("invalid report_size %d\n", | |
353 | parser->global.report_size); | |
354 | return -1; | |
355 | } | |
356 | return 0; | |
dde5845a | 357 | |
880d29f1 JS |
358 | case HID_GLOBAL_ITEM_TAG_REPORT_COUNT: |
359 | parser->global.report_count = item_udata(item); | |
360 | if (parser->global.report_count > HID_MAX_USAGES) { | |
361 | dbg_hid("invalid report_count %d\n", | |
362 | parser->global.report_count); | |
363 | return -1; | |
364 | } | |
365 | return 0; | |
dde5845a | 366 | |
880d29f1 JS |
367 | case HID_GLOBAL_ITEM_TAG_REPORT_ID: |
368 | parser->global.report_id = item_udata(item); | |
369 | if (parser->global.report_id == 0) { | |
370 | dbg_hid("report_id 0 is invalid\n"); | |
dde5845a | 371 | return -1; |
880d29f1 JS |
372 | } |
373 | return 0; | |
374 | ||
375 | default: | |
376 | dbg_hid("unknown global tag 0x%x\n", item->tag); | |
377 | return -1; | |
dde5845a JK |
378 | } |
379 | } | |
380 | ||
381 | /* | |
382 | * Process a local item. | |
383 | */ | |
384 | ||
385 | static int hid_parser_local(struct hid_parser *parser, struct hid_item *item) | |
386 | { | |
387 | __u32 data; | |
388 | unsigned n; | |
389 | ||
390 | if (item->size == 0) { | |
58037eb9 | 391 | dbg_hid("item data expected for local item\n"); |
dde5845a JK |
392 | return -1; |
393 | } | |
394 | ||
395 | data = item_udata(item); | |
396 | ||
397 | switch (item->tag) { | |
880d29f1 JS |
398 | case HID_LOCAL_ITEM_TAG_DELIMITER: |
399 | ||
400 | if (data) { | |
401 | /* | |
402 | * We treat items before the first delimiter | |
403 | * as global to all usage sets (branch 0). | |
404 | * In the moment we process only these global | |
405 | * items and the first delimiter set. | |
406 | */ | |
407 | if (parser->local.delimiter_depth != 0) { | |
408 | dbg_hid("nested delimiters\n"); | |
409 | return -1; | |
dde5845a | 410 | } |
880d29f1 JS |
411 | parser->local.delimiter_depth++; |
412 | parser->local.delimiter_branch++; | |
413 | } else { | |
414 | if (parser->local.delimiter_depth < 1) { | |
415 | dbg_hid("bogus close delimiter\n"); | |
416 | return -1; | |
dde5845a | 417 | } |
880d29f1 JS |
418 | parser->local.delimiter_depth--; |
419 | } | |
420 | return 1; | |
dde5845a | 421 | |
880d29f1 | 422 | case HID_LOCAL_ITEM_TAG_USAGE: |
dde5845a | 423 | |
880d29f1 JS |
424 | if (parser->local.delimiter_branch > 1) { |
425 | dbg_hid("alternative usage ignored\n"); | |
426 | return 0; | |
427 | } | |
dde5845a | 428 | |
880d29f1 JS |
429 | if (item->size <= 2) |
430 | data = (parser->global.usage_page << 16) + data; | |
dde5845a | 431 | |
880d29f1 | 432 | return hid_add_usage(parser, data); |
dde5845a | 433 | |
880d29f1 | 434 | case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM: |
dde5845a | 435 | |
880d29f1 JS |
436 | if (parser->local.delimiter_branch > 1) { |
437 | dbg_hid("alternative usage ignored\n"); | |
dde5845a | 438 | return 0; |
880d29f1 | 439 | } |
dde5845a | 440 | |
880d29f1 JS |
441 | if (item->size <= 2) |
442 | data = (parser->global.usage_page << 16) + data; | |
dde5845a | 443 | |
880d29f1 JS |
444 | parser->local.usage_minimum = data; |
445 | return 0; | |
dde5845a | 446 | |
880d29f1 | 447 | case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM: |
dde5845a | 448 | |
880d29f1 JS |
449 | if (parser->local.delimiter_branch > 1) { |
450 | dbg_hid("alternative usage ignored\n"); | |
dde5845a | 451 | return 0; |
880d29f1 | 452 | } |
dde5845a | 453 | |
880d29f1 JS |
454 | if (item->size <= 2) |
455 | data = (parser->global.usage_page << 16) + data; | |
dde5845a | 456 | |
880d29f1 JS |
457 | for (n = parser->local.usage_minimum; n <= data; n++) |
458 | if (hid_add_usage(parser, n)) { | |
459 | dbg_hid("hid_add_usage failed\n"); | |
460 | return -1; | |
461 | } | |
462 | return 0; | |
463 | ||
464 | default: | |
465 | ||
466 | dbg_hid("unknown local item tag 0x%x\n", item->tag); | |
467 | return 0; | |
dde5845a JK |
468 | } |
469 | return 0; | |
470 | } | |
471 | ||
472 | /* | |
473 | * Process a main item. | |
474 | */ | |
475 | ||
476 | static int hid_parser_main(struct hid_parser *parser, struct hid_item *item) | |
477 | { | |
478 | __u32 data; | |
479 | int ret; | |
480 | ||
481 | data = item_udata(item); | |
482 | ||
483 | switch (item->tag) { | |
880d29f1 JS |
484 | case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION: |
485 | ret = open_collection(parser, data & 0xff); | |
486 | break; | |
487 | case HID_MAIN_ITEM_TAG_END_COLLECTION: | |
488 | ret = close_collection(parser); | |
489 | break; | |
490 | case HID_MAIN_ITEM_TAG_INPUT: | |
491 | ret = hid_add_field(parser, HID_INPUT_REPORT, data); | |
492 | break; | |
493 | case HID_MAIN_ITEM_TAG_OUTPUT: | |
494 | ret = hid_add_field(parser, HID_OUTPUT_REPORT, data); | |
495 | break; | |
496 | case HID_MAIN_ITEM_TAG_FEATURE: | |
497 | ret = hid_add_field(parser, HID_FEATURE_REPORT, data); | |
498 | break; | |
499 | default: | |
500 | dbg_hid("unknown main item tag 0x%x\n", item->tag); | |
501 | ret = 0; | |
dde5845a JK |
502 | } |
503 | ||
504 | memset(&parser->local, 0, sizeof(parser->local)); /* Reset the local parser environment */ | |
505 | ||
506 | return ret; | |
507 | } | |
508 | ||
509 | /* | |
510 | * Process a reserved item. | |
511 | */ | |
512 | ||
513 | static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item) | |
514 | { | |
58037eb9 | 515 | dbg_hid("reserved item type, tag 0x%x\n", item->tag); |
dde5845a JK |
516 | return 0; |
517 | } | |
518 | ||
519 | /* | |
520 | * Free a report and all registered fields. The field->usage and | |
521 | * field->value table's are allocated behind the field, so we need | |
522 | * only to free(field) itself. | |
523 | */ | |
524 | ||
525 | static void hid_free_report(struct hid_report *report) | |
526 | { | |
527 | unsigned n; | |
528 | ||
529 | for (n = 0; n < report->maxfield; n++) | |
530 | kfree(report->field[n]); | |
531 | kfree(report); | |
532 | } | |
533 | ||
534 | /* | |
535 | * Free a device structure, all reports, and all fields. | |
536 | */ | |
537 | ||
85cdaf52 | 538 | static void hid_device_release(struct device *dev) |
dde5845a | 539 | { |
85cdaf52 JS |
540 | struct hid_device *device = container_of(dev, struct hid_device, dev); |
541 | unsigned i, j; | |
dde5845a JK |
542 | |
543 | for (i = 0; i < HID_REPORT_TYPES; i++) { | |
544 | struct hid_report_enum *report_enum = device->report_enum + i; | |
545 | ||
546 | for (j = 0; j < 256; j++) { | |
547 | struct hid_report *report = report_enum->report_id_hash[j]; | |
548 | if (report) | |
549 | hid_free_report(report); | |
550 | } | |
551 | } | |
552 | ||
553 | kfree(device->rdesc); | |
767fe787 | 554 | kfree(device->collection); |
dde5845a JK |
555 | kfree(device); |
556 | } | |
557 | ||
558 | /* | |
559 | * Fetch a report description item from the data stream. We support long | |
560 | * items, though they are not used yet. | |
561 | */ | |
562 | ||
563 | static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item) | |
564 | { | |
565 | u8 b; | |
566 | ||
567 | if ((end - start) <= 0) | |
568 | return NULL; | |
569 | ||
570 | b = *start++; | |
571 | ||
572 | item->type = (b >> 2) & 3; | |
573 | item->tag = (b >> 4) & 15; | |
574 | ||
575 | if (item->tag == HID_ITEM_TAG_LONG) { | |
576 | ||
577 | item->format = HID_ITEM_FORMAT_LONG; | |
578 | ||
579 | if ((end - start) < 2) | |
580 | return NULL; | |
581 | ||
582 | item->size = *start++; | |
583 | item->tag = *start++; | |
584 | ||
585 | if ((end - start) < item->size) | |
586 | return NULL; | |
587 | ||
588 | item->data.longdata = start; | |
589 | start += item->size; | |
590 | return start; | |
591 | } | |
592 | ||
593 | item->format = HID_ITEM_FORMAT_SHORT; | |
594 | item->size = b & 3; | |
595 | ||
596 | switch (item->size) { | |
880d29f1 JS |
597 | case 0: |
598 | return start; | |
dde5845a | 599 | |
880d29f1 JS |
600 | case 1: |
601 | if ((end - start) < 1) | |
602 | return NULL; | |
603 | item->data.u8 = *start++; | |
604 | return start; | |
605 | ||
606 | case 2: | |
607 | if ((end - start) < 2) | |
608 | return NULL; | |
609 | item->data.u16 = get_unaligned_le16(start); | |
610 | start = (__u8 *)((__le16 *)start + 1); | |
611 | return start; | |
612 | ||
613 | case 3: | |
614 | item->size++; | |
615 | if ((end - start) < 4) | |
616 | return NULL; | |
617 | item->data.u32 = get_unaligned_le32(start); | |
618 | start = (__u8 *)((__le32 *)start + 1); | |
619 | return start; | |
dde5845a JK |
620 | } |
621 | ||
622 | return NULL; | |
623 | } | |
624 | ||
85cdaf52 JS |
625 | /** |
626 | * hid_parse_report - parse device report | |
627 | * | |
628 | * @device: hid device | |
629 | * @start: report start | |
630 | * @size: report size | |
631 | * | |
dde5845a JK |
632 | * Parse a report description into a hid_device structure. Reports are |
633 | * enumerated, fields are attached to these reports. | |
85cdaf52 | 634 | * 0 returned on success, otherwise nonzero error value. |
dde5845a | 635 | */ |
85cdaf52 JS |
636 | int hid_parse_report(struct hid_device *device, __u8 *start, |
637 | unsigned size) | |
dde5845a | 638 | { |
dde5845a JK |
639 | struct hid_parser *parser; |
640 | struct hid_item item; | |
641 | __u8 *end; | |
85cdaf52 | 642 | int ret; |
dde5845a JK |
643 | static int (*dispatch_type[])(struct hid_parser *parser, |
644 | struct hid_item *item) = { | |
645 | hid_parser_main, | |
646 | hid_parser_global, | |
647 | hid_parser_local, | |
648 | hid_parser_reserved | |
649 | }; | |
650 | ||
c500c971 JS |
651 | if (device->driver->report_fixup) |
652 | device->driver->report_fixup(device, start, size); | |
653 | ||
85cdaf52 JS |
654 | device->rdesc = kmalloc(size, GFP_KERNEL); |
655 | if (device->rdesc == NULL) | |
656 | return -ENOMEM; | |
dde5845a JK |
657 | memcpy(device->rdesc, start, size); |
658 | device->rsize = size; | |
659 | ||
85cdaf52 JS |
660 | parser = vmalloc(sizeof(struct hid_parser)); |
661 | if (!parser) { | |
662 | ret = -ENOMEM; | |
663 | goto err; | |
dde5845a | 664 | } |
85cdaf52 | 665 | |
47a80edb | 666 | memset(parser, 0, sizeof(struct hid_parser)); |
dde5845a JK |
667 | parser->device = device; |
668 | ||
669 | end = start + size; | |
85cdaf52 | 670 | ret = -EINVAL; |
dde5845a JK |
671 | while ((start = fetch_item(start, end, &item)) != NULL) { |
672 | ||
673 | if (item.format != HID_ITEM_FORMAT_SHORT) { | |
58037eb9 | 674 | dbg_hid("unexpected long global item\n"); |
85cdaf52 | 675 | goto err; |
dde5845a JK |
676 | } |
677 | ||
678 | if (dispatch_type[item.type](parser, &item)) { | |
58037eb9 | 679 | dbg_hid("item %u %u %u %u parsing failed\n", |
dde5845a | 680 | item.format, (unsigned)item.size, (unsigned)item.type, (unsigned)item.tag); |
85cdaf52 | 681 | goto err; |
dde5845a JK |
682 | } |
683 | ||
684 | if (start == end) { | |
685 | if (parser->collection_stack_ptr) { | |
58037eb9 | 686 | dbg_hid("unbalanced collection at end of report description\n"); |
85cdaf52 | 687 | goto err; |
dde5845a JK |
688 | } |
689 | if (parser->local.delimiter_depth) { | |
58037eb9 | 690 | dbg_hid("unbalanced delimiter at end of report description\n"); |
85cdaf52 | 691 | goto err; |
dde5845a | 692 | } |
47a80edb | 693 | vfree(parser); |
85cdaf52 | 694 | return 0; |
dde5845a JK |
695 | } |
696 | } | |
697 | ||
58037eb9 | 698 | dbg_hid("item fetching failed at offset %d\n", (int)(end - start)); |
85cdaf52 | 699 | err: |
47a80edb | 700 | vfree(parser); |
85cdaf52 | 701 | return ret; |
dde5845a | 702 | } |
229695e5 | 703 | EXPORT_SYMBOL_GPL(hid_parse_report); |
dde5845a JK |
704 | |
705 | /* | |
706 | * Convert a signed n-bit integer to signed 32-bit integer. Common | |
707 | * cases are done through the compiler, the screwed things has to be | |
708 | * done by hand. | |
709 | */ | |
710 | ||
711 | static s32 snto32(__u32 value, unsigned n) | |
712 | { | |
713 | switch (n) { | |
880d29f1 JS |
714 | case 8: return ((__s8)value); |
715 | case 16: return ((__s16)value); | |
716 | case 32: return ((__s32)value); | |
dde5845a JK |
717 | } |
718 | return value & (1 << (n - 1)) ? value | (-1 << n) : value; | |
719 | } | |
720 | ||
721 | /* | |
722 | * Convert a signed 32-bit integer to a signed n-bit integer. | |
723 | */ | |
724 | ||
725 | static u32 s32ton(__s32 value, unsigned n) | |
726 | { | |
727 | s32 a = value >> (n - 1); | |
728 | if (a && a != -1) | |
729 | return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1; | |
730 | return value & ((1 << n) - 1); | |
731 | } | |
732 | ||
733 | /* | |
734 | * Extract/implement a data field from/to a little endian report (bit array). | |
735 | * | |
736 | * Code sort-of follows HID spec: | |
737 | * http://www.usb.org/developers/devclass_docs/HID1_11.pdf | |
738 | * | |
739 | * While the USB HID spec allows unlimited length bit fields in "report | |
740 | * descriptors", most devices never use more than 16 bits. | |
741 | * One model of UPS is claimed to report "LINEV" as a 32-bit field. | |
742 | * Search linux-kernel and linux-usb-devel archives for "hid-core extract". | |
743 | */ | |
744 | ||
745 | static __inline__ __u32 extract(__u8 *report, unsigned offset, unsigned n) | |
746 | { | |
747 | u64 x; | |
748 | ||
c4124c9b JK |
749 | if (n > 32) |
750 | printk(KERN_WARNING "HID: extract() called with n (%d) > 32! (%s)\n", | |
751 | n, current->comm); | |
dde5845a JK |
752 | |
753 | report += offset >> 3; /* adjust byte index */ | |
229695e5 | 754 | offset &= 7; /* now only need bit offset into one byte */ |
c105068f | 755 | x = get_unaligned_le64(report); |
229695e5 | 756 | x = (x >> offset) & ((1ULL << n) - 1); /* extract bit field */ |
dde5845a JK |
757 | return (u32) x; |
758 | } | |
759 | ||
760 | /* | |
761 | * "implement" : set bits in a little endian bit stream. | |
762 | * Same concepts as "extract" (see comments above). | |
763 | * The data mangled in the bit stream remains in little endian | |
764 | * order the whole time. It make more sense to talk about | |
765 | * endianness of register values by considering a register | |
766 | * a "cached" copy of the little endiad bit stream. | |
767 | */ | |
768 | static __inline__ void implement(__u8 *report, unsigned offset, unsigned n, __u32 value) | |
769 | { | |
6f0168d2 | 770 | u64 x; |
dde5845a JK |
771 | u64 m = (1ULL << n) - 1; |
772 | ||
c4124c9b JK |
773 | if (n > 32) |
774 | printk(KERN_WARNING "HID: implement() called with n (%d) > 32! (%s)\n", | |
775 | n, current->comm); | |
dde5845a | 776 | |
c4124c9b JK |
777 | if (value > m) |
778 | printk(KERN_WARNING "HID: implement() called with too large value %d! (%s)\n", | |
779 | value, current->comm); | |
dde5845a JK |
780 | WARN_ON(value > m); |
781 | value &= m; | |
782 | ||
783 | report += offset >> 3; | |
784 | offset &= 7; | |
785 | ||
6f0168d2 HH |
786 | x = get_unaligned_le64(report); |
787 | x &= ~(m << offset); | |
788 | x |= ((u64)value) << offset; | |
789 | put_unaligned_le64(x, report); | |
dde5845a JK |
790 | } |
791 | ||
792 | /* | |
793 | * Search an array for a value. | |
794 | */ | |
795 | ||
796 | static __inline__ int search(__s32 *array, __s32 value, unsigned n) | |
797 | { | |
798 | while (n--) { | |
799 | if (*array++ == value) | |
800 | return 0; | |
801 | } | |
802 | return -1; | |
803 | } | |
804 | ||
85cdaf52 JS |
805 | /** |
806 | * hid_match_report - check if driver's raw_event should be called | |
807 | * | |
808 | * @hid: hid device | |
809 | * @report_type: type to match against | |
810 | * | |
811 | * compare hid->driver->report_table->report_type to report->type | |
812 | */ | |
813 | static int hid_match_report(struct hid_device *hid, struct hid_report *report) | |
dde5845a | 814 | { |
85cdaf52 JS |
815 | const struct hid_report_id *id = hid->driver->report_table; |
816 | ||
817 | if (!id) /* NULL means all */ | |
818 | return 1; | |
819 | ||
820 | for (; id->report_type != HID_TERMINATOR; id++) | |
821 | if (id->report_type == HID_ANY_ID || | |
822 | id->report_type == report->type) | |
823 | return 1; | |
824 | return 0; | |
825 | } | |
826 | ||
827 | /** | |
828 | * hid_match_usage - check if driver's event should be called | |
829 | * | |
830 | * @hid: hid device | |
831 | * @usage: usage to match against | |
832 | * | |
833 | * compare hid->driver->usage_table->usage_{type,code} to | |
834 | * usage->usage_{type,code} | |
835 | */ | |
836 | static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage) | |
837 | { | |
838 | const struct hid_usage_id *id = hid->driver->usage_table; | |
839 | ||
840 | if (!id) /* NULL means all */ | |
841 | return 1; | |
842 | ||
843 | for (; id->usage_type != HID_ANY_ID - 1; id++) | |
844 | if ((id->usage_hid == HID_ANY_ID || | |
845 | id->usage_hid == usage->hid) && | |
846 | (id->usage_type == HID_ANY_ID || | |
847 | id->usage_type == usage->type) && | |
848 | (id->usage_code == HID_ANY_ID || | |
849 | id->usage_code == usage->code)) | |
850 | return 1; | |
851 | return 0; | |
852 | } | |
853 | ||
854 | static void hid_process_event(struct hid_device *hid, struct hid_field *field, | |
855 | struct hid_usage *usage, __s32 value, int interrupt) | |
856 | { | |
857 | struct hid_driver *hdrv = hid->driver; | |
858 | int ret; | |
859 | ||
cd667ce2 | 860 | hid_dump_input(hid, usage, value); |
85cdaf52 JS |
861 | |
862 | if (hdrv && hdrv->event && hid_match_usage(hid, usage)) { | |
863 | ret = hdrv->event(hid, field, usage, value); | |
864 | if (ret != 0) { | |
865 | if (ret < 0) | |
866 | dbg_hid("%s's event failed with %d\n", | |
867 | hdrv->name, ret); | |
868 | return; | |
869 | } | |
870 | } | |
871 | ||
dde5845a JK |
872 | if (hid->claimed & HID_CLAIMED_INPUT) |
873 | hidinput_hid_event(hid, field, usage, value); | |
aa938f79 JK |
874 | if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event) |
875 | hid->hiddev_hid_event(hid, field, usage, value); | |
dde5845a JK |
876 | } |
877 | ||
878 | /* | |
879 | * Analyse a received field, and fetch the data from it. The field | |
880 | * content is stored for next report processing (we do differential | |
881 | * reporting to the layer). | |
882 | */ | |
883 | ||
abdff0f7 AB |
884 | static void hid_input_field(struct hid_device *hid, struct hid_field *field, |
885 | __u8 *data, int interrupt) | |
dde5845a JK |
886 | { |
887 | unsigned n; | |
888 | unsigned count = field->report_count; | |
889 | unsigned offset = field->report_offset; | |
890 | unsigned size = field->report_size; | |
891 | __s32 min = field->logical_minimum; | |
892 | __s32 max = field->logical_maximum; | |
893 | __s32 *value; | |
894 | ||
895 | if (!(value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC))) | |
896 | return; | |
897 | ||
898 | for (n = 0; n < count; n++) { | |
899 | ||
900 | value[n] = min < 0 ? snto32(extract(data, offset + n * size, size), size) : | |
901 | extract(data, offset + n * size, size); | |
902 | ||
903 | if (!(field->flags & HID_MAIN_ITEM_VARIABLE) /* Ignore report if ErrorRollOver */ | |
904 | && value[n] >= min && value[n] <= max | |
905 | && field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1) | |
906 | goto exit; | |
907 | } | |
908 | ||
909 | for (n = 0; n < count; n++) { | |
910 | ||
911 | if (HID_MAIN_ITEM_VARIABLE & field->flags) { | |
912 | hid_process_event(hid, field, &field->usage[n], value[n], interrupt); | |
913 | continue; | |
914 | } | |
915 | ||
916 | if (field->value[n] >= min && field->value[n] <= max | |
917 | && field->usage[field->value[n] - min].hid | |
918 | && search(value, field->value[n], count)) | |
919 | hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt); | |
920 | ||
921 | if (value[n] >= min && value[n] <= max | |
922 | && field->usage[value[n] - min].hid | |
923 | && search(field->value, value[n], count)) | |
924 | hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt); | |
925 | } | |
926 | ||
927 | memcpy(field->value, value, count * sizeof(__s32)); | |
928 | exit: | |
929 | kfree(value); | |
930 | } | |
dde5845a JK |
931 | |
932 | /* | |
933 | * Output the field into the report. | |
934 | */ | |
935 | ||
936 | static void hid_output_field(struct hid_field *field, __u8 *data) | |
937 | { | |
938 | unsigned count = field->report_count; | |
939 | unsigned offset = field->report_offset; | |
940 | unsigned size = field->report_size; | |
46386b58 | 941 | unsigned bitsused = offset + count * size; |
dde5845a JK |
942 | unsigned n; |
943 | ||
46386b58 SB |
944 | /* make sure the unused bits in the last byte are zeros */ |
945 | if (count > 0 && size > 0 && (bitsused % 8) != 0) | |
946 | data[(bitsused-1)/8] &= (1 << (bitsused % 8)) - 1; | |
947 | ||
dde5845a JK |
948 | for (n = 0; n < count; n++) { |
949 | if (field->logical_minimum < 0) /* signed values */ | |
950 | implement(data, offset + n * size, size, s32ton(field->value[n], size)); | |
951 | else /* unsigned values */ | |
952 | implement(data, offset + n * size, size, field->value[n]); | |
953 | } | |
954 | } | |
955 | ||
956 | /* | |
957 | * Create a report. | |
958 | */ | |
959 | ||
229695e5 | 960 | void hid_output_report(struct hid_report *report, __u8 *data) |
dde5845a JK |
961 | { |
962 | unsigned n; | |
963 | ||
964 | if (report->id > 0) | |
965 | *data++ = report->id; | |
966 | ||
967 | for (n = 0; n < report->maxfield; n++) | |
968 | hid_output_field(report->field[n], data); | |
969 | } | |
229695e5 | 970 | EXPORT_SYMBOL_GPL(hid_output_report); |
dde5845a JK |
971 | |
972 | /* | |
973 | * Set a field value. The report this field belongs to has to be | |
974 | * created and transferred to the device, to set this value in the | |
975 | * device. | |
976 | */ | |
977 | ||
978 | int hid_set_field(struct hid_field *field, unsigned offset, __s32 value) | |
979 | { | |
980 | unsigned size = field->report_size; | |
981 | ||
cd667ce2 | 982 | hid_dump_input(field->report->device, field->usage + offset, value); |
dde5845a JK |
983 | |
984 | if (offset >= field->report_count) { | |
58037eb9 | 985 | dbg_hid("offset (%d) exceeds report_count (%d)\n", offset, field->report_count); |
dde5845a JK |
986 | return -1; |
987 | } | |
988 | if (field->logical_minimum < 0) { | |
989 | if (value != snto32(s32ton(value, size), size)) { | |
58037eb9 | 990 | dbg_hid("value %d is out of range\n", value); |
dde5845a JK |
991 | return -1; |
992 | } | |
993 | } | |
994 | field->value[offset] = value; | |
995 | return 0; | |
996 | } | |
229695e5 | 997 | EXPORT_SYMBOL_GPL(hid_set_field); |
dde5845a | 998 | |
85cdaf52 JS |
999 | static struct hid_report *hid_get_report(struct hid_report_enum *report_enum, |
1000 | const u8 *data) | |
aa8de2f0 | 1001 | { |
aa8de2f0 | 1002 | struct hid_report *report; |
85cdaf52 | 1003 | unsigned int n = 0; /* Normally report number is 0 */ |
aa8de2f0 | 1004 | |
85cdaf52 JS |
1005 | /* Device uses numbered reports, data[0] is report number */ |
1006 | if (report_enum->numbered) | |
1007 | n = *data; | |
aa8de2f0 | 1008 | |
85cdaf52 JS |
1009 | report = report_enum->report_id_hash[n]; |
1010 | if (report == NULL) | |
1011 | dbg_hid("undefined report_id %u received\n", n); | |
aa8de2f0 | 1012 | |
85cdaf52 JS |
1013 | return report; |
1014 | } | |
aa8de2f0 | 1015 | |
85cdaf52 JS |
1016 | void hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size, |
1017 | int interrupt) | |
1018 | { | |
1019 | struct hid_report_enum *report_enum = hid->report_enum + type; | |
1020 | struct hid_report *report; | |
1021 | unsigned int a; | |
1022 | int rsize, csize = size; | |
1023 | u8 *cdata = data; | |
aa8de2f0 | 1024 | |
85cdaf52 JS |
1025 | report = hid_get_report(report_enum, data); |
1026 | if (!report) | |
1027 | return; | |
aa8de2f0 | 1028 | |
85cdaf52 JS |
1029 | if (report_enum->numbered) { |
1030 | cdata++; | |
1031 | csize--; | |
aa8de2f0 JK |
1032 | } |
1033 | ||
1034 | rsize = ((report->size - 1) >> 3) + 1; | |
1035 | ||
85cdaf52 JS |
1036 | if (csize < rsize) { |
1037 | dbg_hid("report %d is too short, (%d < %d)\n", report->id, | |
1038 | csize, rsize); | |
1039 | memset(cdata + csize, 0, rsize - csize); | |
aa8de2f0 JK |
1040 | } |
1041 | ||
1042 | if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event) | |
1043 | hid->hiddev_report_event(hid, report); | |
b54ec3c1 JK |
1044 | if (hid->claimed & HID_CLAIMED_HIDRAW) { |
1045 | /* numbered reports need to be passed with the report num */ | |
1046 | if (report_enum->numbered) | |
1047 | hidraw_report_event(hid, data - 1, size + 1); | |
1048 | else | |
1049 | hidraw_report_event(hid, data, size); | |
1050 | } | |
aa8de2f0 | 1051 | |
85cdaf52 JS |
1052 | for (a = 0; a < report->maxfield; a++) |
1053 | hid_input_field(hid, report->field[a], cdata, interrupt); | |
aa8de2f0 JK |
1054 | |
1055 | if (hid->claimed & HID_CLAIMED_INPUT) | |
1056 | hidinput_report_event(hid, report); | |
85cdaf52 JS |
1057 | } |
1058 | EXPORT_SYMBOL_GPL(hid_report_raw_event); | |
1059 | ||
1060 | /** | |
1061 | * hid_input_report - report data from lower layer (usb, bt...) | |
1062 | * | |
1063 | * @hid: hid device | |
1064 | * @type: HID report type (HID_*_REPORT) | |
1065 | * @data: report contents | |
1066 | * @size: size of data parameter | |
ff9b00a2 | 1067 | * @interrupt: distinguish between interrupt and control transfers |
85cdaf52 JS |
1068 | * |
1069 | * This is data entry for lower layers. | |
1070 | */ | |
1071 | int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt) | |
1072 | { | |
76c317d6 JL |
1073 | struct hid_report_enum *report_enum; |
1074 | struct hid_driver *hdrv; | |
85cdaf52 | 1075 | struct hid_report *report; |
cd667ce2 | 1076 | char *buf; |
85cdaf52 JS |
1077 | unsigned int i; |
1078 | int ret; | |
1079 | ||
1080 | if (!hid || !hid->driver) | |
1081 | return -ENODEV; | |
76c317d6 JL |
1082 | report_enum = hid->report_enum + type; |
1083 | hdrv = hid->driver; | |
85cdaf52 JS |
1084 | |
1085 | if (!size) { | |
1086 | dbg_hid("empty report\n"); | |
1087 | return -1; | |
1088 | } | |
1089 | ||
d1ff6522 | 1090 | buf = kmalloc(sizeof(char) * HID_DEBUG_BUFSIZE, GFP_ATOMIC); |
cd667ce2 JK |
1091 | |
1092 | if (!buf) { | |
1093 | report = hid_get_report(report_enum, data); | |
1094 | goto nomem; | |
1095 | } | |
1096 | ||
1097 | snprintf(buf, HID_DEBUG_BUFSIZE - 1, | |
1098 | "\nreport (size %u) (%snumbered)\n", size, report_enum->numbered ? "" : "un"); | |
1099 | hid_debug_event(hid, buf); | |
85cdaf52 JS |
1100 | |
1101 | report = hid_get_report(report_enum, data); | |
55dba524 JK |
1102 | if (!report) { |
1103 | kfree(buf); | |
85cdaf52 | 1104 | return -1; |
55dba524 | 1105 | } |
85cdaf52 JS |
1106 | |
1107 | /* dump the report */ | |
cd667ce2 JK |
1108 | snprintf(buf, HID_DEBUG_BUFSIZE - 1, |
1109 | "report %d (size %u) = ", report->id, size); | |
1110 | hid_debug_event(hid, buf); | |
1111 | for (i = 0; i < size; i++) { | |
1112 | snprintf(buf, HID_DEBUG_BUFSIZE - 1, | |
1113 | " %02x", data[i]); | |
1114 | hid_debug_event(hid, buf); | |
1115 | } | |
1116 | hid_debug_event(hid, "\n"); | |
85cdaf52 | 1117 | |
cd667ce2 | 1118 | kfree(buf); |
85cdaf52 | 1119 | |
cd667ce2 | 1120 | nomem: |
85cdaf52 JS |
1121 | if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) { |
1122 | ret = hdrv->raw_event(hid, report, data, size); | |
1123 | if (ret != 0) | |
1124 | return ret < 0 ? ret : 0; | |
1125 | } | |
1126 | ||
1127 | hid_report_raw_event(hid, type, data, size, interrupt); | |
aa8de2f0 JK |
1128 | |
1129 | return 0; | |
1130 | } | |
1131 | EXPORT_SYMBOL_GPL(hid_input_report); | |
1132 | ||
0f37cd03 JK |
1133 | static bool hid_match_one_id(struct hid_device *hdev, |
1134 | const struct hid_device_id *id) | |
1135 | { | |
1136 | return id->bus == hdev->bus && | |
1137 | (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) && | |
1138 | (id->product == HID_ANY_ID || id->product == hdev->product); | |
1139 | } | |
1140 | ||
1141 | static const struct hid_device_id *hid_match_id(struct hid_device *hdev, | |
1142 | const struct hid_device_id *id) | |
1143 | { | |
1144 | for (; id->bus; id++) | |
1145 | if (hid_match_one_id(hdev, id)) | |
1146 | return id; | |
1147 | ||
1148 | return NULL; | |
1149 | } | |
1150 | ||
1151 | static const struct hid_device_id hid_hiddev_list[] = { | |
c0bd6a42 RH |
1152 | { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) }, |
1153 | { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) }, | |
0f37cd03 JK |
1154 | { } |
1155 | }; | |
1156 | ||
1157 | static bool hid_hiddev(struct hid_device *hdev) | |
1158 | { | |
1159 | return !!hid_match_id(hdev, hid_hiddev_list); | |
1160 | } | |
1161 | ||
93c10132 JS |
1162 | int hid_connect(struct hid_device *hdev, unsigned int connect_mask) |
1163 | { | |
1164 | static const char *types[] = { "Device", "Pointer", "Mouse", "Device", | |
1165 | "Joystick", "Gamepad", "Keyboard", "Keypad", | |
1166 | "Multi-Axis Controller" | |
1167 | }; | |
1168 | const char *type, *bus; | |
1169 | char buf[64]; | |
1170 | unsigned int i; | |
1171 | int len; | |
1172 | ||
1173 | if (hdev->bus != BUS_USB) | |
1174 | connect_mask &= ~HID_CONNECT_HIDDEV; | |
0f37cd03 JK |
1175 | if (hid_hiddev(hdev)) |
1176 | connect_mask |= HID_CONNECT_HIDDEV_FORCE; | |
93c10132 JS |
1177 | |
1178 | if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev, | |
1179 | connect_mask & HID_CONNECT_HIDINPUT_FORCE)) | |
1180 | hdev->claimed |= HID_CLAIMED_INPUT; | |
1181 | if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect && | |
1182 | !hdev->hiddev_connect(hdev, | |
1183 | connect_mask & HID_CONNECT_HIDDEV_FORCE)) | |
1184 | hdev->claimed |= HID_CLAIMED_HIDDEV; | |
1185 | if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev)) | |
1186 | hdev->claimed |= HID_CLAIMED_HIDRAW; | |
1187 | ||
1188 | if (!hdev->claimed) { | |
1189 | dev_err(&hdev->dev, "claimed by neither input, hiddev nor " | |
1190 | "hidraw\n"); | |
1191 | return -ENODEV; | |
1192 | } | |
1193 | ||
1194 | if ((hdev->claimed & HID_CLAIMED_INPUT) && | |
1195 | (connect_mask & HID_CONNECT_FF) && hdev->ff_init) | |
1196 | hdev->ff_init(hdev); | |
1197 | ||
1198 | len = 0; | |
1199 | if (hdev->claimed & HID_CLAIMED_INPUT) | |
1200 | len += sprintf(buf + len, "input"); | |
1201 | if (hdev->claimed & HID_CLAIMED_HIDDEV) | |
1202 | len += sprintf(buf + len, "%shiddev%d", len ? "," : "", | |
1203 | hdev->minor); | |
1204 | if (hdev->claimed & HID_CLAIMED_HIDRAW) | |
1205 | len += sprintf(buf + len, "%shidraw%d", len ? "," : "", | |
1206 | ((struct hidraw *)hdev->hidraw)->minor); | |
1207 | ||
1208 | type = "Device"; | |
1209 | for (i = 0; i < hdev->maxcollection; i++) { | |
1210 | struct hid_collection *col = &hdev->collection[i]; | |
1211 | if (col->type == HID_COLLECTION_APPLICATION && | |
1212 | (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK && | |
1213 | (col->usage & 0xffff) < ARRAY_SIZE(types)) { | |
1214 | type = types[col->usage & 0xffff]; | |
1215 | break; | |
1216 | } | |
1217 | } | |
1218 | ||
1219 | switch (hdev->bus) { | |
1220 | case BUS_USB: | |
1221 | bus = "USB"; | |
1222 | break; | |
1223 | case BUS_BLUETOOTH: | |
1224 | bus = "BLUETOOTH"; | |
1225 | break; | |
1226 | default: | |
1227 | bus = "<UNKNOWN>"; | |
1228 | } | |
1229 | ||
1230 | dev_info(&hdev->dev, "%s: %s HID v%x.%02x %s [%s] on %s\n", | |
1231 | buf, bus, hdev->version >> 8, hdev->version & 0xff, | |
1232 | type, hdev->name, hdev->phys); | |
1233 | ||
1234 | return 0; | |
1235 | } | |
1236 | EXPORT_SYMBOL_GPL(hid_connect); | |
1237 | ||
c4c259bc JK |
1238 | void hid_disconnect(struct hid_device *hdev) |
1239 | { | |
1240 | if (hdev->claimed & HID_CLAIMED_INPUT) | |
1241 | hidinput_disconnect(hdev); | |
1242 | if (hdev->claimed & HID_CLAIMED_HIDDEV) | |
1243 | hdev->hiddev_disconnect(hdev); | |
1244 | if (hdev->claimed & HID_CLAIMED_HIDRAW) | |
1245 | hidraw_disconnect(hdev); | |
1246 | } | |
1247 | EXPORT_SYMBOL_GPL(hid_disconnect); | |
1248 | ||
bae7eb33 | 1249 | /* a list of devices for which there is a specialized driver on HID bus */ |
85cdaf52 | 1250 | static const struct hid_device_id hid_blacklist[] = { |
14a21cd4 JS |
1251 | { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) }, |
1252 | { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) }, | |
df9bcace | 1253 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ATV_IRCONTROL) }, |
8c19a515 JS |
1254 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) }, |
1255 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) }, | |
1256 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) }, | |
1257 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) }, | |
1258 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) }, | |
1259 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) }, | |
1260 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) }, | |
1261 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) }, | |
1262 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) }, | |
1263 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) }, | |
1264 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) }, | |
1265 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) }, | |
1266 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) }, | |
fef3f571 RF |
1267 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) }, |
1268 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) }, | |
1269 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) }, | |
8c19a515 JS |
1270 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) }, |
1271 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) }, | |
1272 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) }, | |
1273 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) }, | |
1274 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) }, | |
1275 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) }, | |
ee8a1a0a JS |
1276 | { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) }, |
1277 | { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) }, | |
1278 | { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) }, | |
8c19a515 JS |
1279 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) }, |
1280 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) }, | |
1281 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) }, | |
1282 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) }, | |
1283 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) }, | |
1284 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) }, | |
a96d6ef3 HR |
1285 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) }, |
1286 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) }, | |
1287 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) }, | |
23aeb61e CSW |
1288 | { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) }, |
1289 | { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) }, | |
1290 | { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) }, | |
8c19a515 JS |
1291 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) }, |
1292 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) }, | |
b5635b12 | 1293 | { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) }, |
3b239cd7 | 1294 | { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) }, |
fcfacfd3 | 1295 | { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) }, |
0f221320 JS |
1296 | { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) }, |
1297 | { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) }, | |
e8d0eab4 | 1298 | { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) }, |
0f221320 | 1299 | { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) }, |
3f866fbd | 1300 | { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) }, |
1f243e30 | 1301 | { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) }, |
5181e594 | 1302 | { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) }, |
578f3a35 | 1303 | { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) }, |
5181e594 | 1304 | { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) }, |
42859e0b | 1305 | { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) }, |
949f8fef | 1306 | { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) }, |
1e093206 | 1307 | { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) }, |
fdf93aa3 | 1308 | { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) }, |
79422741 | 1309 | { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) }, |
b5635b12 | 1310 | { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) }, |
5f22a799 JS |
1311 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) }, |
1312 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) }, | |
1313 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) }, | |
1314 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) }, | |
1315 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) }, | |
1316 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) }, | |
1317 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) }, | |
5f22a799 JS |
1318 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) }, |
1319 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) }, | |
5f22a799 JS |
1320 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) }, |
1321 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) }, | |
606bd0a8 JS |
1322 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) }, |
1323 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) }, | |
1324 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) }, | |
fd30ea8c | 1325 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) }, |
606bd0a8 JS |
1326 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) }, |
1327 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) }, | |
1328 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) }, | |
243b706d | 1329 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) }, |
606bd0a8 | 1330 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) }, |
24985cf6 JK |
1331 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) }, |
1332 | { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) }, | |
78a849a6 JS |
1333 | { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) }, |
1334 | { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) }, | |
1335 | { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) }, | |
1336 | { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) }, | |
1337 | { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) }, | |
3b8006e5 | 1338 | { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) }, |
94011f93 | 1339 | { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) }, |
1e762532 | 1340 | { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) }, |
980a3da6 | 1341 | { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) }, |
bd28ce00 | 1342 | { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) }, |
cc6e0bbb | 1343 | { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) }, |
90231e7e | 1344 | { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) }, |
daedb3d6 AH |
1345 | { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) }, |
1346 | { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) }, | |
7a84b133 RAG |
1347 | { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) }, |
1348 | { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) }, | |
daedb3d6 AH |
1349 | { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) }, |
1350 | { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) }, | |
f14f526d | 1351 | { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) }, |
711a680e | 1352 | { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) }, |
fac733f0 | 1353 | { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) }, |
ca2dcd40 | 1354 | { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) }, |
daedb3d6 AH |
1355 | { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) }, |
1356 | { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) }, | |
8c19a515 | 1357 | |
78a849a6 | 1358 | { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) }, |
85cdaf52 JS |
1359 | { } |
1360 | }; | |
1361 | ||
3a6f82f7 JS |
1362 | struct hid_dynid { |
1363 | struct list_head list; | |
1364 | struct hid_device_id id; | |
1365 | }; | |
1366 | ||
1367 | /** | |
1368 | * store_new_id - add a new HID device ID to this driver and re-probe devices | |
1369 | * @driver: target device driver | |
1370 | * @buf: buffer for scanning device ID data | |
1371 | * @count: input size | |
1372 | * | |
1373 | * Adds a new dynamic hid device ID to this driver, | |
1374 | * and causes the driver to probe for all devices again. | |
1375 | */ | |
1376 | static ssize_t store_new_id(struct device_driver *drv, const char *buf, | |
1377 | size_t count) | |
1378 | { | |
1379 | struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver); | |
1380 | struct hid_dynid *dynid; | |
1381 | __u32 bus, vendor, product; | |
1382 | unsigned long driver_data = 0; | |
1383 | int ret; | |
1384 | ||
1385 | ret = sscanf(buf, "%x %x %x %lx", | |
1386 | &bus, &vendor, &product, &driver_data); | |
1387 | if (ret < 3) | |
1388 | return -EINVAL; | |
1389 | ||
1390 | dynid = kzalloc(sizeof(*dynid), GFP_KERNEL); | |
1391 | if (!dynid) | |
1392 | return -ENOMEM; | |
1393 | ||
1394 | dynid->id.bus = bus; | |
1395 | dynid->id.vendor = vendor; | |
1396 | dynid->id.product = product; | |
1397 | dynid->id.driver_data = driver_data; | |
1398 | ||
1399 | spin_lock(&hdrv->dyn_lock); | |
1400 | list_add_tail(&dynid->list, &hdrv->dyn_list); | |
1401 | spin_unlock(&hdrv->dyn_lock); | |
1402 | ||
1403 | ret = 0; | |
1404 | if (get_driver(&hdrv->driver)) { | |
1405 | ret = driver_attach(&hdrv->driver); | |
1406 | put_driver(&hdrv->driver); | |
1407 | } | |
1408 | ||
1409 | return ret ? : count; | |
1410 | } | |
1411 | static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id); | |
1412 | ||
1413 | static void hid_free_dynids(struct hid_driver *hdrv) | |
1414 | { | |
1415 | struct hid_dynid *dynid, *n; | |
1416 | ||
1417 | spin_lock(&hdrv->dyn_lock); | |
1418 | list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) { | |
1419 | list_del(&dynid->list); | |
1420 | kfree(dynid); | |
1421 | } | |
1422 | spin_unlock(&hdrv->dyn_lock); | |
1423 | } | |
1424 | ||
1425 | static const struct hid_device_id *hid_match_device(struct hid_device *hdev, | |
1426 | struct hid_driver *hdrv) | |
1427 | { | |
1428 | struct hid_dynid *dynid; | |
1429 | ||
1430 | spin_lock(&hdrv->dyn_lock); | |
1431 | list_for_each_entry(dynid, &hdrv->dyn_list, list) { | |
1432 | if (hid_match_one_id(hdev, &dynid->id)) { | |
1433 | spin_unlock(&hdrv->dyn_lock); | |
1434 | return &dynid->id; | |
1435 | } | |
1436 | } | |
1437 | spin_unlock(&hdrv->dyn_lock); | |
1438 | ||
1439 | return hid_match_id(hdev, hdrv->id_table); | |
1440 | } | |
1441 | ||
85cdaf52 JS |
1442 | static int hid_bus_match(struct device *dev, struct device_driver *drv) |
1443 | { | |
1444 | struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver); | |
1445 | struct hid_device *hdev = container_of(dev, struct hid_device, dev); | |
1446 | ||
3a6f82f7 | 1447 | if (!hid_match_device(hdev, hdrv)) |
85cdaf52 JS |
1448 | return 0; |
1449 | ||
1450 | /* generic wants all non-blacklisted */ | |
1451 | if (!strncmp(hdrv->name, "generic-", 8)) | |
1452 | return !hid_match_id(hdev, hid_blacklist); | |
1453 | ||
1454 | return 1; | |
1455 | } | |
1456 | ||
1457 | static int hid_device_probe(struct device *dev) | |
1458 | { | |
1459 | struct hid_driver *hdrv = container_of(dev->driver, | |
1460 | struct hid_driver, driver); | |
1461 | struct hid_device *hdev = container_of(dev, struct hid_device, dev); | |
1462 | const struct hid_device_id *id; | |
1463 | int ret = 0; | |
1464 | ||
1465 | if (!hdev->driver) { | |
3a6f82f7 | 1466 | id = hid_match_device(hdev, hdrv); |
c500c971 JS |
1467 | if (id == NULL) |
1468 | return -ENODEV; | |
85cdaf52 | 1469 | |
c500c971 JS |
1470 | hdev->driver = hdrv; |
1471 | if (hdrv->probe) { | |
1472 | ret = hdrv->probe(hdev, id); | |
1473 | } else { /* default probe */ | |
1474 | ret = hid_parse(hdev); | |
1475 | if (!ret) | |
93c10132 | 1476 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); |
85cdaf52 | 1477 | } |
c500c971 JS |
1478 | if (ret) |
1479 | hdev->driver = NULL; | |
85cdaf52 JS |
1480 | } |
1481 | return ret; | |
1482 | } | |
1483 | ||
1484 | static int hid_device_remove(struct device *dev) | |
1485 | { | |
1486 | struct hid_device *hdev = container_of(dev, struct hid_device, dev); | |
1487 | struct hid_driver *hdrv = hdev->driver; | |
1488 | ||
1489 | if (hdrv) { | |
1490 | if (hdrv->remove) | |
1491 | hdrv->remove(hdev); | |
c500c971 JS |
1492 | else /* default remove */ |
1493 | hid_hw_stop(hdev); | |
85cdaf52 JS |
1494 | hdev->driver = NULL; |
1495 | } | |
1496 | ||
1497 | return 0; | |
1498 | } | |
1499 | ||
1500 | static int hid_uevent(struct device *dev, struct kobj_uevent_env *env) | |
1501 | { | |
1502 | struct hid_device *hdev = container_of(dev, struct hid_device, dev); | |
1503 | ||
1504 | if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X", | |
1505 | hdev->bus, hdev->vendor, hdev->product)) | |
1506 | return -ENOMEM; | |
1507 | ||
1508 | if (add_uevent_var(env, "HID_NAME=%s", hdev->name)) | |
1509 | return -ENOMEM; | |
1510 | ||
1511 | if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys)) | |
1512 | return -ENOMEM; | |
1513 | ||
1514 | if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq)) | |
1515 | return -ENOMEM; | |
1516 | ||
1517 | if (add_uevent_var(env, "MODALIAS=hid:b%04Xv%08Xp%08X", | |
1518 | hdev->bus, hdev->vendor, hdev->product)) | |
1519 | return -ENOMEM; | |
1520 | ||
1521 | return 0; | |
1522 | } | |
1523 | ||
1524 | static struct bus_type hid_bus_type = { | |
1525 | .name = "hid", | |
1526 | .match = hid_bus_match, | |
1527 | .probe = hid_device_probe, | |
1528 | .remove = hid_device_remove, | |
1529 | .uevent = hid_uevent, | |
1530 | }; | |
1531 | ||
bae7eb33 | 1532 | /* a list of devices that shouldn't be handled by HID core at all */ |
d458a9df JS |
1533 | static const struct hid_device_id hid_ignore_list[] = { |
1534 | { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) }, | |
1535 | { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) }, | |
1536 | { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) }, | |
1537 | { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) }, | |
1538 | { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) }, | |
1539 | { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) }, | |
1540 | { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) }, | |
1541 | { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) }, | |
1542 | { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) }, | |
1543 | { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) }, | |
1544 | { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) }, | |
1545 | { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) }, | |
1546 | { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_LCM)}, | |
ac2d9899 | 1547 | { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_LCM2)}, |
62a56582 | 1548 | { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) }, |
d458a9df JS |
1549 | { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) }, |
1550 | { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) }, | |
1551 | { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) }, | |
1552 | { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) }, | |
1553 | { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) }, | |
1554 | { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) }, | |
5f6108cf | 1555 | { HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) }, |
d458a9df JS |
1556 | { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) }, |
1557 | { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) }, | |
1558 | { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) }, | |
70c66567 | 1559 | { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) }, |
d458a9df JS |
1560 | { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) }, |
1561 | { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) }, | |
1562 | { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0003) }, | |
1563 | { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) }, | |
1564 | { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) }, | |
1565 | { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) }, | |
1566 | { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) }, | |
1567 | { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) }, | |
1568 | { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) }, | |
1569 | { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) }, | |
1570 | { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) }, | |
1571 | { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) }, | |
1572 | { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) }, | |
1573 | { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) }, | |
1574 | { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) }, | |
1575 | { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) }, | |
1576 | { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) }, | |
1577 | { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) }, | |
1578 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) }, | |
1579 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) }, | |
1580 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) }, | |
1581 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) }, | |
1582 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) }, | |
1583 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) }, | |
1584 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) }, | |
1585 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) }, | |
1586 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) }, | |
1587 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) }, | |
1588 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) }, | |
1589 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) }, | |
1590 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) }, | |
1591 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) }, | |
1592 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) }, | |
1593 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) }, | |
1594 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) }, | |
1595 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) }, | |
1596 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) }, | |
1597 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) }, | |
1598 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) }, | |
1599 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) }, | |
1600 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) }, | |
1601 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) }, | |
1602 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) }, | |
1603 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) }, | |
1604 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) }, | |
1605 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) }, | |
1606 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) }, | |
1607 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) }, | |
1608 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) }, | |
1609 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) }, | |
1610 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) }, | |
1611 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) }, | |
1612 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) }, | |
1613 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) }, | |
1614 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) }, | |
1615 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) }, | |
1616 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) }, | |
1617 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) }, | |
1618 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) }, | |
1619 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) }, | |
1620 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) }, | |
1621 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) }, | |
1622 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) }, | |
1623 | { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) }, | |
1624 | { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) }, | |
1625 | { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) }, | |
c91c21c5 | 1626 | { HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) }, |
d458a9df | 1627 | { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) }, |
eb8141cc | 1628 | { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) }, |
d458a9df JS |
1629 | { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) }, |
1630 | { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) }, | |
1631 | { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) }, | |
1632 | { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) }, | |
1633 | { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) }, | |
1634 | { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) }, | |
1635 | { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY1) }, | |
1636 | { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) }, | |
1637 | { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) }, | |
1638 | { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) }, | |
1639 | { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) }, | |
1640 | { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) }, | |
1641 | { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) }, | |
1642 | { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) }, | |
1643 | { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) }, | |
1644 | { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) }, | |
d458a9df JS |
1645 | { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) }, |
1646 | { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) }, | |
1647 | { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) }, | |
1648 | { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) }, | |
1649 | { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) }, | |
1650 | { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) }, | |
1651 | { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) }, | |
1652 | { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) }, | |
1653 | { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) }, | |
1654 | { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) }, | |
1655 | { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) }, | |
1656 | { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) }, | |
1657 | { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) }, | |
1658 | { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) }, | |
1659 | { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) }, | |
1660 | { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) }, | |
1661 | { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) }, | |
4cfae3e8 | 1662 | { HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) }, |
35cfd1d9 | 1663 | { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) }, |
d1d3a5f6 RC |
1664 | { HID_USB_DEVICE(USB_VENDOR_ID_TENX, USB_DEVICE_ID_TENX_IBUDDY1) }, |
1665 | { HID_USB_DEVICE(USB_VENDOR_ID_TENX, USB_DEVICE_ID_TENX_IBUDDY2) }, | |
d458a9df JS |
1666 | { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) }, |
1667 | { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) }, | |
1668 | { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) }, | |
1669 | { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) }, | |
1670 | { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) }, | |
1671 | { HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) }, | |
1672 | { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) }, | |
1673 | { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) }, | |
1674 | { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) }, | |
1675 | { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) }, | |
1676 | { } | |
1677 | }; | |
1678 | ||
b4d8e473 JS |
1679 | /** |
1680 | * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer | |
1681 | * | |
1682 | * There are composite devices for which we want to ignore only a certain | |
1683 | * interface. This is a list of devices for which only the mouse interface will | |
1684 | * be ignored. This allows a dedicated driver to take care of the interface. | |
1685 | */ | |
1686 | static const struct hid_device_id hid_mouse_ignore_list[] = { | |
1687 | /* appletouch driver */ | |
1688 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) }, | |
1689 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) }, | |
1690 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) }, | |
1691 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) }, | |
1692 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) }, | |
1693 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) }, | |
1694 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) }, | |
1695 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) }, | |
1696 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) }, | |
1697 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) }, | |
1698 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) }, | |
1699 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) }, | |
1700 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) }, | |
1701 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) }, | |
1702 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) }, | |
1703 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) }, | |
1704 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) }, | |
1705 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) }, | |
1706 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) }, | |
1707 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) }, | |
ac26fca3 JK |
1708 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) }, |
1709 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) }, | |
1710 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) }, | |
b4d8e473 JS |
1711 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) }, |
1712 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) }, | |
1713 | { } | |
1714 | }; | |
1715 | ||
d458a9df JS |
1716 | static bool hid_ignore(struct hid_device *hdev) |
1717 | { | |
1718 | switch (hdev->vendor) { | |
1719 | case USB_VENDOR_ID_CODEMERCS: | |
1720 | /* ignore all Code Mercenaries IOWarrior devices */ | |
1721 | if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST && | |
1722 | hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST) | |
1723 | return true; | |
1724 | break; | |
1725 | case USB_VENDOR_ID_LOGITECH: | |
1726 | if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST && | |
1727 | hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST) | |
1728 | return true; | |
1729 | break; | |
31f7fd79 JW |
1730 | case USB_VENDOR_ID_SOUNDGRAPH: |
1731 | if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST && | |
1732 | hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST) | |
1733 | return true; | |
1734 | break; | |
d458a9df JS |
1735 | } |
1736 | ||
b4d8e473 JS |
1737 | if (hdev->type == HID_TYPE_USBMOUSE && |
1738 | hid_match_id(hdev, hid_mouse_ignore_list)) | |
1739 | return true; | |
1740 | ||
d458a9df JS |
1741 | return !!hid_match_id(hdev, hid_ignore_list); |
1742 | } | |
1743 | ||
85cdaf52 JS |
1744 | int hid_add_device(struct hid_device *hdev) |
1745 | { | |
1746 | static atomic_t id = ATOMIC_INIT(0); | |
1747 | int ret; | |
1748 | ||
1749 | if (WARN_ON(hdev->status & HID_STAT_ADDED)) | |
1750 | return -EBUSY; | |
1751 | ||
d458a9df JS |
1752 | /* we need to kill them here, otherwise they will stay allocated to |
1753 | * wait for coming driver */ | |
1754 | if (hid_ignore(hdev)) | |
1755 | return -ENODEV; | |
1756 | ||
6bbe586f KS |
1757 | /* XXX hack, any other cleaner solution after the driver core |
1758 | * is converted to allow more than 20 bytes as the device name? */ | |
1759 | dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus, | |
1760 | hdev->vendor, hdev->product, atomic_inc_return(&id)); | |
85cdaf52 JS |
1761 | |
1762 | ret = device_add(&hdev->dev); | |
1763 | if (!ret) | |
1764 | hdev->status |= HID_STAT_ADDED; | |
1765 | ||
a635f9dd JK |
1766 | hid_debug_register(hdev, dev_name(&hdev->dev)); |
1767 | ||
85cdaf52 JS |
1768 | return ret; |
1769 | } | |
1770 | EXPORT_SYMBOL_GPL(hid_add_device); | |
1771 | ||
1772 | /** | |
1773 | * hid_allocate_device - allocate new hid device descriptor | |
1774 | * | |
1775 | * Allocate and initialize hid device, so that hid_destroy_device might be | |
1776 | * used to free it. | |
1777 | * | |
1778 | * New hid_device pointer is returned on success, otherwise ERR_PTR encoded | |
1779 | * error value. | |
1780 | */ | |
1781 | struct hid_device *hid_allocate_device(void) | |
1782 | { | |
1783 | struct hid_device *hdev; | |
1784 | unsigned int i; | |
1785 | int ret = -ENOMEM; | |
1786 | ||
1787 | hdev = kzalloc(sizeof(*hdev), GFP_KERNEL); | |
1788 | if (hdev == NULL) | |
1789 | return ERR_PTR(ret); | |
1790 | ||
1791 | device_initialize(&hdev->dev); | |
1792 | hdev->dev.release = hid_device_release; | |
1793 | hdev->dev.bus = &hid_bus_type; | |
1794 | ||
1795 | hdev->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS, | |
1796 | sizeof(struct hid_collection), GFP_KERNEL); | |
1797 | if (hdev->collection == NULL) | |
1798 | goto err; | |
1799 | hdev->collection_size = HID_DEFAULT_NUM_COLLECTIONS; | |
1800 | ||
1801 | for (i = 0; i < HID_REPORT_TYPES; i++) | |
1802 | INIT_LIST_HEAD(&hdev->report_enum[i].report_list); | |
1803 | ||
cd667ce2 JK |
1804 | init_waitqueue_head(&hdev->debug_wait); |
1805 | INIT_LIST_HEAD(&hdev->debug_list); | |
1806 | ||
85cdaf52 JS |
1807 | return hdev; |
1808 | err: | |
1809 | put_device(&hdev->dev); | |
1810 | return ERR_PTR(ret); | |
1811 | } | |
1812 | EXPORT_SYMBOL_GPL(hid_allocate_device); | |
1813 | ||
1814 | static void hid_remove_device(struct hid_device *hdev) | |
1815 | { | |
1816 | if (hdev->status & HID_STAT_ADDED) { | |
1817 | device_del(&hdev->dev); | |
a635f9dd | 1818 | hid_debug_unregister(hdev); |
85cdaf52 JS |
1819 | hdev->status &= ~HID_STAT_ADDED; |
1820 | } | |
1821 | } | |
1822 | ||
1823 | /** | |
1824 | * hid_destroy_device - free previously allocated device | |
1825 | * | |
1826 | * @hdev: hid device | |
1827 | * | |
1828 | * If you allocate hid_device through hid_allocate_device, you should ever | |
1829 | * free by this function. | |
1830 | */ | |
1831 | void hid_destroy_device(struct hid_device *hdev) | |
1832 | { | |
1833 | hid_remove_device(hdev); | |
1834 | put_device(&hdev->dev); | |
1835 | } | |
1836 | EXPORT_SYMBOL_GPL(hid_destroy_device); | |
1837 | ||
1838 | int __hid_register_driver(struct hid_driver *hdrv, struct module *owner, | |
1839 | const char *mod_name) | |
1840 | { | |
3a6f82f7 JS |
1841 | int ret; |
1842 | ||
85cdaf52 JS |
1843 | hdrv->driver.name = hdrv->name; |
1844 | hdrv->driver.bus = &hid_bus_type; | |
1845 | hdrv->driver.owner = owner; | |
1846 | hdrv->driver.mod_name = mod_name; | |
1847 | ||
3a6f82f7 JS |
1848 | INIT_LIST_HEAD(&hdrv->dyn_list); |
1849 | spin_lock_init(&hdrv->dyn_lock); | |
1850 | ||
1851 | ret = driver_register(&hdrv->driver); | |
1852 | if (ret) | |
1853 | return ret; | |
1854 | ||
1855 | ret = driver_create_file(&hdrv->driver, &driver_attr_new_id); | |
1856 | if (ret) | |
1857 | driver_unregister(&hdrv->driver); | |
1858 | ||
1859 | return ret; | |
85cdaf52 JS |
1860 | } |
1861 | EXPORT_SYMBOL_GPL(__hid_register_driver); | |
1862 | ||
1863 | void hid_unregister_driver(struct hid_driver *hdrv) | |
1864 | { | |
3a6f82f7 | 1865 | driver_remove_file(&hdrv->driver, &driver_attr_new_id); |
85cdaf52 | 1866 | driver_unregister(&hdrv->driver); |
3a6f82f7 | 1867 | hid_free_dynids(hdrv); |
85cdaf52 JS |
1868 | } |
1869 | EXPORT_SYMBOL_GPL(hid_unregister_driver); | |
1870 | ||
0361a28d ON |
1871 | int hid_check_keys_pressed(struct hid_device *hid) |
1872 | { | |
1873 | struct hid_input *hidinput; | |
1874 | int i; | |
1875 | ||
e5288eb5 JK |
1876 | if (!(hid->claimed & HID_CLAIMED_INPUT)) |
1877 | return 0; | |
1878 | ||
0361a28d ON |
1879 | list_for_each_entry(hidinput, &hid->inputs, list) { |
1880 | for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++) | |
1881 | if (hidinput->input->key[i]) | |
1882 | return 1; | |
1883 | } | |
1884 | ||
1885 | return 0; | |
1886 | } | |
1887 | ||
1888 | EXPORT_SYMBOL_GPL(hid_check_keys_pressed); | |
1889 | ||
86166b7b JK |
1890 | static int __init hid_init(void) |
1891 | { | |
85cdaf52 JS |
1892 | int ret; |
1893 | ||
a635f9dd | 1894 | if (hid_debug) |
cd667ce2 JK |
1895 | printk(KERN_WARNING "HID: hid_debug is now used solely for parser and driver debugging.\n" |
1896 | "HID: debugfs is now used for inspecting the device (report descriptor, reports)\n"); | |
a635f9dd | 1897 | |
85cdaf52 JS |
1898 | ret = bus_register(&hid_bus_type); |
1899 | if (ret) { | |
1900 | printk(KERN_ERR "HID: can't register hid bus\n"); | |
1901 | goto err; | |
1902 | } | |
1903 | ||
1904 | ret = hidraw_init(); | |
1905 | if (ret) | |
1906 | goto err_bus; | |
1907 | ||
a635f9dd JK |
1908 | hid_debug_init(); |
1909 | ||
85cdaf52 JS |
1910 | return 0; |
1911 | err_bus: | |
1912 | bus_unregister(&hid_bus_type); | |
1913 | err: | |
1914 | return ret; | |
86166b7b JK |
1915 | } |
1916 | ||
1917 | static void __exit hid_exit(void) | |
1918 | { | |
a635f9dd | 1919 | hid_debug_exit(); |
86166b7b | 1920 | hidraw_exit(); |
85cdaf52 | 1921 | bus_unregister(&hid_bus_type); |
86166b7b JK |
1922 | } |
1923 | ||
1924 | module_init(hid_init); | |
1925 | module_exit(hid_exit); | |
1926 | ||
88adb72b JK |
1927 | MODULE_AUTHOR("Andreas Gal"); |
1928 | MODULE_AUTHOR("Vojtech Pavlik"); | |
1929 | MODULE_AUTHOR("Jiri Kosina"); | |
aa938f79 JK |
1930 | MODULE_LICENSE(DRIVER_LICENSE); |
1931 |