1 /*
2 * Copyright (c) 1999 Andreas Gal
3 * Copyright (c) 2000-2001 Vojtech Pavlik
4 * Copyright (c) 2006-2007 Jiri Kosina
5 */
6 /*
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 *
21 * Should you need to contact me, the author, you can do so either by
22 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
23 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
24 */
25 #ifndef __HID_H
26 #define __HID_H
27
28
29 #include <linux/bitops.h>
30 #include <linux/types.h>
31 #include <linux/slab.h>
32 #include <linux/list.h>
33 #include <linux/mod_devicetable.h> /* hid_device_id */
34 #include <linux/timer.h>
35 #include <linux/workqueue.h>
36 #include <linux/input.h>
37 #include <linux/semaphore.h>
38 #include <linux/mutex.h>
39 #include <linux/power_supply.h>
40 #include <uapi/linux/hid.h>
41
42 /*
43 * We parse each description item into this structure. Short items data
44 * values are expanded to 32-bit signed int, long items contain a pointer
45 * into the data area.
46 */
47
48 struct hid_item {
49 unsigned format;
50 __u8 size;
51 __u8 type;
52 __u8 tag;
53 union {
54 __u8 u8;
55 __s8 s8;
56 __u16 u16;
57 __s16 s16;
58 __u32 u32;
59 __s32 s32;
60 __u8 *longdata;
61 } data;
62 };
63
64 /*
65 * HID report item format
66 */
67
68 #define HID_ITEM_FORMAT_SHORT 0
69 #define HID_ITEM_FORMAT_LONG 1
70
71 /*
72 * Special tag indicating long items
73 */
74
75 #define HID_ITEM_TAG_LONG 15
76
77 /*
78 * HID report descriptor item type (prefix bit 2,3)
79 */
80
81 #define HID_ITEM_TYPE_MAIN 0
82 #define HID_ITEM_TYPE_GLOBAL 1
83 #define HID_ITEM_TYPE_LOCAL 2
84 #define HID_ITEM_TYPE_RESERVED 3
85
86 /*
87 * HID report descriptor main item tags
88 */
89
90 #define HID_MAIN_ITEM_TAG_INPUT 8
91 #define HID_MAIN_ITEM_TAG_OUTPUT 9
92 #define HID_MAIN_ITEM_TAG_FEATURE 11
93 #define HID_MAIN_ITEM_TAG_BEGIN_COLLECTION 10
94 #define HID_MAIN_ITEM_TAG_END_COLLECTION 12
95
96 /*
97 * HID report descriptor main item contents
98 */
99
100 #define HID_MAIN_ITEM_CONSTANT 0x001
101 #define HID_MAIN_ITEM_VARIABLE 0x002
102 #define HID_MAIN_ITEM_RELATIVE 0x004
103 #define HID_MAIN_ITEM_WRAP 0x008
104 #define HID_MAIN_ITEM_NONLINEAR 0x010
105 #define HID_MAIN_ITEM_NO_PREFERRED 0x020
106 #define HID_MAIN_ITEM_NULL_STATE 0x040
107 #define HID_MAIN_ITEM_VOLATILE 0x080
108 #define HID_MAIN_ITEM_BUFFERED_BYTE 0x100
109
110 /*
111 * HID report descriptor collection item types
112 */
113
114 #define HID_COLLECTION_PHYSICAL 0
115 #define HID_COLLECTION_APPLICATION 1
116 #define HID_COLLECTION_LOGICAL 2
117
118 /*
119 * HID report descriptor global item tags
120 */
121
122 #define HID_GLOBAL_ITEM_TAG_USAGE_PAGE 0
123 #define HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM 1
124 #define HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM 2
125 #define HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM 3
126 #define HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM 4
127 #define HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT 5
128 #define HID_GLOBAL_ITEM_TAG_UNIT 6
129 #define HID_GLOBAL_ITEM_TAG_REPORT_SIZE 7
130 #define HID_GLOBAL_ITEM_TAG_REPORT_ID 8
131 #define HID_GLOBAL_ITEM_TAG_REPORT_COUNT 9
132 #define HID_GLOBAL_ITEM_TAG_PUSH 10
133 #define HID_GLOBAL_ITEM_TAG_POP 11
134
135 /*
136 * HID report descriptor local item tags
137 */
138
139 #define HID_LOCAL_ITEM_TAG_USAGE 0
140 #define HID_LOCAL_ITEM_TAG_USAGE_MINIMUM 1
141 #define HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM 2
142 #define HID_LOCAL_ITEM_TAG_DESIGNATOR_INDEX 3
143 #define HID_LOCAL_ITEM_TAG_DESIGNATOR_MINIMUM 4
144 #define HID_LOCAL_ITEM_TAG_DESIGNATOR_MAXIMUM 5
145 #define HID_LOCAL_ITEM_TAG_STRING_INDEX 7
146 #define HID_LOCAL_ITEM_TAG_STRING_MINIMUM 8
147 #define HID_LOCAL_ITEM_TAG_STRING_MAXIMUM 9
148 #define HID_LOCAL_ITEM_TAG_DELIMITER 10
149
150 /*
151 * HID usage tables
152 */
153
154 #define HID_USAGE_PAGE 0xffff0000
155
156 #define HID_UP_UNDEFINED 0x00000000
157 #define HID_UP_GENDESK 0x00010000
158 #define HID_UP_SIMULATION 0x00020000
159 #define HID_UP_GENDEVCTRLS 0x00060000
160 #define HID_UP_KEYBOARD 0x00070000
161 #define HID_UP_LED 0x00080000
162 #define HID_UP_BUTTON 0x00090000
163 #define HID_UP_ORDINAL 0x000a0000
164 #define HID_UP_TELEPHONY 0x000b0000
165 #define HID_UP_CONSUMER 0x000c0000
166 #define HID_UP_DIGITIZER 0x000d0000
167 #define HID_UP_PID 0x000f0000
168 #define HID_UP_HPVENDOR 0xff7f0000
169 #define HID_UP_HPVENDOR2 0xff010000
170 #define HID_UP_MSVENDOR 0xff000000
171 #define HID_UP_CUSTOM 0x00ff0000
172 #define HID_UP_LOGIVENDOR 0xffbc0000
173 #define HID_UP_LOGIVENDOR2 0xff090000
174 #define HID_UP_LOGIVENDOR3 0xff430000
175 #define HID_UP_LNVENDOR 0xffa00000
176 #define HID_UP_SENSOR 0x00200000
177 #define HID_UP_ASUSVENDOR 0xff310000
178
179 #define HID_USAGE 0x0000ffff
180
181 #define HID_GD_POINTER 0x00010001
182 #define HID_GD_MOUSE 0x00010002
183 #define HID_GD_JOYSTICK 0x00010004
184 #define HID_GD_GAMEPAD 0x00010005
185 #define HID_GD_KEYBOARD 0x00010006
186 #define HID_GD_KEYPAD 0x00010007
187 #define HID_GD_MULTIAXIS 0x00010008
188 /*
189 * Microsoft Win8 Wireless Radio Controls extensions CA, see:
190 * http://www.usb.org/developers/hidpage/HUTRR40RadioHIDUsagesFinal.pdf
191 */
192 #define HID_GD_WIRELESS_RADIO_CTLS 0x0001000c
193 /*
194 * System Multi-Axis, see:
195 * http://www.usb.org/developers/hidpage/HUTRR62_-_Generic_Desktop_CA_for_System_Multi-Axis_Controllers.txt
196 */
197 #define HID_GD_SYSTEM_MULTIAXIS 0x0001000e
198
199 #define HID_GD_X 0x00010030
200 #define HID_GD_Y 0x00010031
201 #define HID_GD_Z 0x00010032
202 #define HID_GD_RX 0x00010033
203 #define HID_GD_RY 0x00010034
204 #define HID_GD_RZ 0x00010035
205 #define HID_GD_SLIDER 0x00010036
206 #define HID_GD_DIAL 0x00010037
207 #define HID_GD_WHEEL 0x00010038
208 #define HID_GD_HATSWITCH 0x00010039
209 #define HID_GD_BUFFER 0x0001003a
210 #define HID_GD_BYTECOUNT 0x0001003b
211 #define HID_GD_MOTION 0x0001003c
212 #define HID_GD_START 0x0001003d
213 #define HID_GD_SELECT 0x0001003e
214 #define HID_GD_VX 0x00010040
215 #define HID_GD_VY 0x00010041
216 #define HID_GD_VZ 0x00010042
217 #define HID_GD_VBRX 0x00010043
218 #define HID_GD_VBRY 0x00010044
219 #define HID_GD_VBRZ 0x00010045
220 #define HID_GD_VNO 0x00010046
221 #define HID_GD_FEATURE 0x00010047
222 #define HID_GD_SYSTEM_CONTROL 0x00010080
223 #define HID_GD_UP 0x00010090
224 #define HID_GD_DOWN 0x00010091
225 #define HID_GD_RIGHT 0x00010092
226 #define HID_GD_LEFT 0x00010093
227 /* Microsoft Win8 Wireless Radio Controls CA usage codes */
228 #define HID_GD_RFKILL_BTN 0x000100c6
229 #define HID_GD_RFKILL_LED 0x000100c7
230 #define HID_GD_RFKILL_SWITCH 0x000100c8
231
232 #define HID_DC_BATTERYSTRENGTH 0x00060020
233
234 #define HID_CP_CONSUMER_CONTROL 0x000c0001
235
236 #define HID_DG_DIGITIZER 0x000d0001
237 #define HID_DG_PEN 0x000d0002
238 #define HID_DG_LIGHTPEN 0x000d0003
239 #define HID_DG_TOUCHSCREEN 0x000d0004
240 #define HID_DG_TOUCHPAD 0x000d0005
241 #define HID_DG_STYLUS 0x000d0020
242 #define HID_DG_PUCK 0x000d0021
243 #define HID_DG_FINGER 0x000d0022
244 #define HID_DG_TIPPRESSURE 0x000d0030
245 #define HID_DG_BARRELPRESSURE 0x000d0031
246 #define HID_DG_INRANGE 0x000d0032
247 #define HID_DG_TOUCH 0x000d0033
248 #define HID_DG_UNTOUCH 0x000d0034
249 #define HID_DG_TAP 0x000d0035
250 #define HID_DG_TABLETFUNCTIONKEY 0x000d0039
251 #define HID_DG_PROGRAMCHANGEKEY 0x000d003a
252 #define HID_DG_BATTERYSTRENGTH 0x000d003b
253 #define HID_DG_INVERT 0x000d003c
254 #define HID_DG_TILT_X 0x000d003d
255 #define HID_DG_TILT_Y 0x000d003e
256 #define HID_DG_TWIST 0x000d0041
257 #define HID_DG_TIPSWITCH 0x000d0042
258 #define HID_DG_TIPSWITCH2 0x000d0043
259 #define HID_DG_BARRELSWITCH 0x000d0044
260 #define HID_DG_ERASER 0x000d0045
261 #define HID_DG_TABLETPICK 0x000d0046
262
263 #define HID_CP_CONSUMERCONTROL 0x000c0001
264 #define HID_CP_NUMERICKEYPAD 0x000c0002
265 #define HID_CP_PROGRAMMABLEBUTTONS 0x000c0003
266 #define HID_CP_MICROPHONE 0x000c0004
267 #define HID_CP_HEADPHONE 0x000c0005
268 #define HID_CP_GRAPHICEQUALIZER 0x000c0006
269 #define HID_CP_FUNCTIONBUTTONS 0x000c0036
270 #define HID_CP_SELECTION 0x000c0080
271 #define HID_CP_MEDIASELECTION 0x000c0087
272 #define HID_CP_SELECTDISC 0x000c00ba
273 #define HID_CP_VOLUMEUP 0x000c00e9
274 #define HID_CP_VOLUMEDOWN 0x000c00ea
275 #define HID_CP_PLAYBACKSPEED 0x000c00f1
276 #define HID_CP_PROXIMITY 0x000c0109
277 #define HID_CP_SPEAKERSYSTEM 0x000c0160
278 #define HID_CP_CHANNELLEFT 0x000c0161
279 #define HID_CP_CHANNELRIGHT 0x000c0162
280 #define HID_CP_CHANNELCENTER 0x000c0163
281 #define HID_CP_CHANNELFRONT 0x000c0164
282 #define HID_CP_CHANNELCENTERFRONT 0x000c0165
283 #define HID_CP_CHANNELSIDE 0x000c0166
284 #define HID_CP_CHANNELSURROUND 0x000c0167
285 #define HID_CP_CHANNELLOWFREQUENCYENHANCEMENT 0x000c0168
286 #define HID_CP_CHANNELTOP 0x000c0169
287 #define HID_CP_CHANNELUNKNOWN 0x000c016a
288 #define HID_CP_APPLICATIONLAUNCHBUTTONS 0x000c0180
289 #define HID_CP_GENERICGUIAPPLICATIONCONTROLS 0x000c0200
290
291 #define HID_DG_DEVICECONFIG 0x000d000e
292 #define HID_DG_DEVICESETTINGS 0x000d0023
293 #define HID_DG_AZIMUTH 0x000d003f
294 #define HID_DG_CONFIDENCE 0x000d0047
295 #define HID_DG_WIDTH 0x000d0048
296 #define HID_DG_HEIGHT 0x000d0049
297 #define HID_DG_CONTACTID 0x000d0051
298 #define HID_DG_INPUTMODE 0x000d0052
299 #define HID_DG_DEVICEINDEX 0x000d0053
300 #define HID_DG_CONTACTCOUNT 0x000d0054
301 #define HID_DG_CONTACTMAX 0x000d0055
302 #define HID_DG_SCANTIME 0x000d0056
303 #define HID_DG_SURFACESWITCH 0x000d0057
304 #define HID_DG_BUTTONSWITCH 0x000d0058
305 #define HID_DG_BUTTONTYPE 0x000d0059
306 #define HID_DG_BARRELSWITCH2 0x000d005a
307 #define HID_DG_TOOLSERIALNUMBER 0x000d005b
308 #define HID_DG_LATENCYMODE 0x000d0060
309
310 #define HID_VD_ASUS_CUSTOM_MEDIA_KEYS 0xff310076
311 /*
312 * HID report types --- Ouch! HID spec says 1 2 3!
313 */
314
315 #define HID_INPUT_REPORT 0
316 #define HID_OUTPUT_REPORT 1
317 #define HID_FEATURE_REPORT 2
318
319 #define HID_REPORT_TYPES 3
320
321 /*
322 * HID connect requests
323 */
324
325 #define HID_CONNECT_HIDINPUT BIT(0)
326 #define HID_CONNECT_HIDINPUT_FORCE BIT(1)
327 #define HID_CONNECT_HIDRAW BIT(2)
328 #define HID_CONNECT_HIDDEV BIT(3)
329 #define HID_CONNECT_HIDDEV_FORCE BIT(4)
330 #define HID_CONNECT_FF BIT(5)
331 #define HID_CONNECT_DRIVER BIT(6)
332 #define HID_CONNECT_DEFAULT (HID_CONNECT_HIDINPUT|HID_CONNECT_HIDRAW| \
333 HID_CONNECT_HIDDEV|HID_CONNECT_FF)
334
335 /*
336 * HID device quirks.
337 */
338
339 /*
340 * Increase this if you need to configure more HID quirks at module load time
341 */
342 #define MAX_USBHID_BOOT_QUIRKS 4
343
344 #define HID_QUIRK_INVERT BIT(0)
345 #define HID_QUIRK_NOTOUCH BIT(1)
346 #define HID_QUIRK_IGNORE BIT(2)
347 #define HID_QUIRK_NOGET BIT(3)
348 #define HID_QUIRK_HIDDEV_FORCE BIT(4)
349 #define HID_QUIRK_BADPAD BIT(5)
350 #define HID_QUIRK_MULTI_INPUT BIT(6)
351 #define HID_QUIRK_HIDINPUT_FORCE BIT(7)
352 /* BIT(8) reserved for backward compatibility, was HID_QUIRK_NO_EMPTY_INPUT */
353 /* BIT(9) reserved for backward compatibility, was NO_INIT_INPUT_REPORTS */
354 #define HID_QUIRK_ALWAYS_POLL BIT(10)
355 #define HID_QUIRK_INPUT_PER_APP BIT(11)
356 #define HID_QUIRK_X_INVERT BIT(12)
357 #define HID_QUIRK_Y_INVERT BIT(13)
358 #define HID_QUIRK_SKIP_OUTPUT_REPORTS BIT(16)
359 #define HID_QUIRK_SKIP_OUTPUT_REPORT_ID BIT(17)
360 #define HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP BIT(18)
361 #define HID_QUIRK_HAVE_SPECIAL_DRIVER BIT(19)
362 #define HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE BIT(20)
363 #define HID_QUIRK_FULLSPEED_INTERVAL BIT(28)
364 #define HID_QUIRK_NO_INIT_REPORTS BIT(29)
365 #define HID_QUIRK_NO_IGNORE BIT(30)
366 #define HID_QUIRK_NO_INPUT_SYNC BIT(31)
367
368 /*
369 * HID device groups
370 *
371 * Note: HID_GROUP_ANY is declared in linux/mod_devicetable.h
372 * and has a value of 0x0000
373 */
374 #define HID_GROUP_GENERIC 0x0001
375 #define HID_GROUP_MULTITOUCH 0x0002
376 #define HID_GROUP_SENSOR_HUB 0x0003
377 #define HID_GROUP_MULTITOUCH_WIN_8 0x0004
378
379 /*
380 * Vendor specific HID device groups
381 */
382 #define HID_GROUP_RMI 0x0100
383 #define HID_GROUP_WACOM 0x0101
384 #define HID_GROUP_LOGITECH_DJ_DEVICE 0x0102
385 #define HID_GROUP_STEAM 0x0103
386
387 /*
388 * HID protocol status
389 */
390 #define HID_REPORT_PROTOCOL 1
391 #define HID_BOOT_PROTOCOL 0
392
393 /*
394 * This is the global environment of the parser. This information is
395 * persistent for main-items. The global environment can be saved and
396 * restored with PUSH/POP statements.
397 */
398
399 struct hid_global {
400 unsigned usage_page;
401 __s32 logical_minimum;
402 __s32 logical_maximum;
403 __s32 physical_minimum;
404 __s32 physical_maximum;
405 __s32 unit_exponent;
406 unsigned unit;
407 unsigned report_id;
408 unsigned report_size;
409 unsigned report_count;
410 };
411
412 /*
413 * This is the local environment. It is persistent up the next main-item.
414 */
415
416 #define HID_MAX_USAGES 12288
417 #define HID_DEFAULT_NUM_COLLECTIONS 16
418
419 struct hid_local {
420 unsigned usage[HID_MAX_USAGES]; /* usage array */
421 u8 usage_size[HID_MAX_USAGES]; /* usage size array */
422 unsigned collection_index[HID_MAX_USAGES]; /* collection index array */
423 unsigned usage_index;
424 unsigned usage_minimum;
425 unsigned delimiter_depth;
426 unsigned delimiter_branch;
427 };
428
429 /*
430 * This is the collection stack. We climb up the stack to determine
431 * application and function of each field.
432 */
433
434 struct hid_collection {
435 unsigned type;
436 unsigned usage;
437 unsigned level;
438 };
439
440 struct hid_usage {
441 unsigned hid; /* hid usage code */
442 unsigned collection_index; /* index into collection array */
443 unsigned usage_index; /* index into usage array */
444 /* hidinput data */
445 __u16 code; /* input driver code */
446 __u8 type; /* input driver type */
447 __s8 hat_min; /* hat switch fun */
448 __s8 hat_max; /* ditto */
449 __s8 hat_dir; /* ditto */
450 };
451
452 struct hid_input;
453
454 struct hid_field {
455 unsigned physical; /* physical usage for this field */
456 unsigned logical; /* logical usage for this field */
457 unsigned application; /* application usage for this field */
458 struct hid_usage *usage; /* usage table for this function */
459 unsigned maxusage; /* maximum usage index */
460 unsigned flags; /* main-item flags (i.e. volatile,array,constant) */
461 unsigned report_offset; /* bit offset in the report */
462 unsigned report_size; /* size of this field in the report */
463 unsigned report_count; /* number of this field in the report */
464 unsigned report_type; /* (input,output,feature) */
465 __s32 *value; /* last known value(s) */
466 __s32 logical_minimum;
467 __s32 logical_maximum;
468 __s32 physical_minimum;
469 __s32 physical_maximum;
470 __s32 unit_exponent;
471 unsigned unit;
472 struct hid_report *report; /* associated report */
473 unsigned index; /* index into report->field[] */
474 /* hidinput data */
475 struct hid_input *hidinput; /* associated input structure */
476 __u16 dpad; /* dpad input code */
477 };
478
479 #define HID_MAX_FIELDS 256
480
481 struct hid_report {
482 struct list_head list;
483 struct list_head hidinput_list;
484 unsigned int id; /* id of this report */
485 unsigned int type; /* report type */
486 unsigned int application; /* application usage for this report */
487 struct hid_field *field[HID_MAX_FIELDS]; /* fields of the report */
488 unsigned maxfield; /* maximum valid field index */
489 unsigned size; /* size of the report (bits) */
490 struct hid_device *device; /* associated device */
491 };
492
493 #define HID_MAX_IDS 256
494
495 struct hid_report_enum {
496 unsigned numbered;
497 struct list_head report_list;
498 struct hid_report *report_id_hash[HID_MAX_IDS];
499 };
500
501 #define HID_MIN_BUFFER_SIZE 64 /* make sure there is at least a packet size of space */
502 #define HID_MAX_BUFFER_SIZE 8192 /* 8kb */
503 #define HID_CONTROL_FIFO_SIZE 256 /* to init devices with >100 reports */
504 #define HID_OUTPUT_FIFO_SIZE 64
505
506 struct hid_control_fifo {
507 unsigned char dir;
508 struct hid_report *report;
509 char *raw_report;
510 };
511
512 struct hid_output_fifo {
513 struct hid_report *report;
514 char *raw_report;
515 };
516
517 #define HID_CLAIMED_INPUT BIT(0)
518 #define HID_CLAIMED_HIDDEV BIT(1)
519 #define HID_CLAIMED_HIDRAW BIT(2)
520 #define HID_CLAIMED_DRIVER BIT(3)
521
522 #define HID_STAT_ADDED BIT(0)
523 #define HID_STAT_PARSED BIT(1)
524 #define HID_STAT_DUP_DETECTED BIT(2)
525 #define HID_STAT_REPROBED BIT(3)
526
527 struct hid_input {
528 struct list_head list;
529 struct hid_report *report;
530 struct input_dev *input;
531 const char *name;
532 bool registered;
533 struct list_head reports; /* the list of reports */
534 unsigned int application; /* application usage for this input */
535 };
536
537 enum hid_type {
538 HID_TYPE_OTHER = 0,
539 HID_TYPE_USBMOUSE,
540 HID_TYPE_USBNONE
541 };
542
543 enum hid_battery_status {
544 HID_BATTERY_UNKNOWN = 0,
545 HID_BATTERY_QUERIED, /* Kernel explicitly queried battery strength */
546 HID_BATTERY_REPORTED, /* Device sent unsolicited battery strength report */
547 };
548
549 struct hid_driver;
550 struct hid_ll_driver;
551
552 struct hid_device { /* device report descriptor */
553 __u8 *dev_rdesc;
554 unsigned dev_rsize;
555 __u8 *rdesc;
556 unsigned rsize;
557 struct hid_collection *collection; /* List of HID collections */
558 unsigned collection_size; /* Number of allocated hid_collections */
559 unsigned maxcollection; /* Number of parsed collections */
560 unsigned maxapplication; /* Number of applications */
561 __u16 bus; /* BUS ID */
562 __u16 group; /* Report group */
563 __u32 vendor; /* Vendor ID */
564 __u32 product; /* Product ID */
565 __u32 version; /* HID version */
566 enum hid_type type; /* device type (mouse, kbd, ...) */
567 unsigned country; /* HID country */
568 struct hid_report_enum report_enum[HID_REPORT_TYPES];
569 struct work_struct led_work; /* delayed LED worker */
570
571 struct semaphore driver_input_lock; /* protects the current driver */
572 struct device dev; /* device */
573 struct hid_driver *driver;
574
575 struct hid_ll_driver *ll_driver;
576 struct mutex ll_open_lock;
577 unsigned int ll_open_count;
578
579 #ifdef CONFIG_HID_BATTERY_STRENGTH
580 /*
581 * Power supply information for HID devices which report
582 * battery strength. power_supply was successfully registered if
583 * battery is non-NULL.
584 */
585 struct power_supply *battery;
586 __s32 battery_capacity;
587 __s32 battery_min;
588 __s32 battery_max;
589 __s32 battery_report_type;
590 __s32 battery_report_id;
591 enum hid_battery_status battery_status;
592 bool battery_avoid_query;
593 #endif
594
595 unsigned long status; /* see STAT flags above */
596 unsigned claimed; /* Claimed by hidinput, hiddev? */
597 unsigned quirks; /* Various quirks the device can pull on us */
598 bool io_started; /* If IO has started */
599
600 struct list_head inputs; /* The list of inputs */
601 void *hiddev; /* The hiddev structure */
602 void *hidraw;
603
604 char name[128]; /* Device name */
605 char phys[64]; /* Device physical location */
606 char uniq[64]; /* Device unique identifier (serial #) */
607
608 void *driver_data;
609
610 /* temporary hid_ff handling (until moved to the drivers) */
611 int (*ff_init)(struct hid_device *);
612
613 /* hiddev event handler */
614 int (*hiddev_connect)(struct hid_device *, unsigned int);
615 void (*hiddev_disconnect)(struct hid_device *);
616 void (*hiddev_hid_event) (struct hid_device *, struct hid_field *field,
617 struct hid_usage *, __s32);
618 void (*hiddev_report_event) (struct hid_device *, struct hid_report *);
619
620 /* debugging support via debugfs */
621 unsigned short debug;
622 struct dentry *debug_dir;
623 struct dentry *debug_rdesc;
624 struct dentry *debug_events;
625 struct list_head debug_list;
626 spinlock_t debug_list_lock;
627 wait_queue_head_t debug_wait;
628 };
629
630 #define to_hid_device(pdev) \
631 container_of(pdev, struct hid_device, dev)
632
hid_get_drvdata(struct hid_device * hdev)633 static inline void *hid_get_drvdata(struct hid_device *hdev)
634 {
635 return dev_get_drvdata(&hdev->dev);
636 }
637
hid_set_drvdata(struct hid_device * hdev,void * data)638 static inline void hid_set_drvdata(struct hid_device *hdev, void *data)
639 {
640 dev_set_drvdata(&hdev->dev, data);
641 }
642
643 #define HID_GLOBAL_STACK_SIZE 4
644 #define HID_COLLECTION_STACK_SIZE 4
645
646 #define HID_SCAN_FLAG_MT_WIN_8 BIT(0)
647 #define HID_SCAN_FLAG_VENDOR_SPECIFIC BIT(1)
648 #define HID_SCAN_FLAG_GD_POINTER BIT(2)
649
650 struct hid_parser {
651 struct hid_global global;
652 struct hid_global global_stack[HID_GLOBAL_STACK_SIZE];
653 unsigned int global_stack_ptr;
654 struct hid_local local;
655 unsigned int *collection_stack;
656 unsigned int collection_stack_ptr;
657 unsigned int collection_stack_size;
658 struct hid_device *device;
659 unsigned int scan_flags;
660 };
661
662 struct hid_class_descriptor {
663 __u8 bDescriptorType;
664 __le16 wDescriptorLength;
665 } __attribute__ ((packed));
666
667 struct hid_descriptor {
668 __u8 bLength;
669 __u8 bDescriptorType;
670 __le16 bcdHID;
671 __u8 bCountryCode;
672 __u8 bNumDescriptors;
673
674 struct hid_class_descriptor desc[1];
675 } __attribute__ ((packed));
676
677 #define HID_DEVICE(b, g, ven, prod) \
678 .bus = (b), .group = (g), .vendor = (ven), .product = (prod)
679 #define HID_USB_DEVICE(ven, prod) \
680 .bus = BUS_USB, .vendor = (ven), .product = (prod)
681 #define HID_BLUETOOTH_DEVICE(ven, prod) \
682 .bus = BUS_BLUETOOTH, .vendor = (ven), .product = (prod)
683 #define HID_I2C_DEVICE(ven, prod) \
684 .bus = BUS_I2C, .vendor = (ven), .product = (prod)
685
686 #define HID_REPORT_ID(rep) \
687 .report_type = (rep)
688 #define HID_USAGE_ID(uhid, utype, ucode) \
689 .usage_hid = (uhid), .usage_type = (utype), .usage_code = (ucode)
690 /* we don't want to catch types and codes equal to 0 */
691 #define HID_TERMINATOR (HID_ANY_ID - 1)
692
693 struct hid_report_id {
694 __u32 report_type;
695 };
696 struct hid_usage_id {
697 __u32 usage_hid;
698 __u32 usage_type;
699 __u32 usage_code;
700 };
701
702 /**
703 * struct hid_driver
704 * @name: driver name (e.g. "Footech_bar-wheel")
705 * @id_table: which devices is this driver for (must be non-NULL for probe
706 * to be called)
707 * @dyn_list: list of dynamically added device ids
708 * @dyn_lock: lock protecting @dyn_list
709 * @match: check if the given device is handled by this driver
710 * @probe: new device inserted
711 * @remove: device removed (NULL if not a hot-plug capable driver)
712 * @report_table: on which reports to call raw_event (NULL means all)
713 * @raw_event: if report in report_table, this hook is called (NULL means nop)
714 * @usage_table: on which events to call event (NULL means all)
715 * @event: if usage in usage_table, this hook is called (NULL means nop)
716 * @report: this hook is called after parsing a report (NULL means nop)
717 * @report_fixup: called before report descriptor parsing (NULL means nop)
718 * @input_mapping: invoked on input registering before mapping an usage
719 * @input_mapped: invoked on input registering after mapping an usage
720 * @input_configured: invoked just before the device is registered
721 * @feature_mapping: invoked on feature registering
722 * @suspend: invoked on suspend (NULL means nop)
723 * @resume: invoked on resume if device was not reset (NULL means nop)
724 * @reset_resume: invoked on resume if device was reset (NULL means nop)
725 *
726 * probe should return -errno on error, or 0 on success. During probe,
727 * input will not be passed to raw_event unless hid_device_io_start is
728 * called.
729 *
730 * raw_event and event should return 0 on no action performed, 1 when no
731 * further processing should be done and negative on error
732 *
733 * input_mapping shall return a negative value to completely ignore this usage
734 * (e.g. doubled or invalid usage), zero to continue with parsing of this
735 * usage by generic code (no special handling needed) or positive to skip
736 * generic parsing (needed special handling which was done in the hook already)
737 * input_mapped shall return negative to inform the layer that this usage
738 * should not be considered for further processing or zero to notify that
739 * no processing was performed and should be done in a generic manner
740 * Both these functions may be NULL which means the same behavior as returning
741 * zero from them.
742 */
743 struct hid_driver {
744 char *name;
745 const struct hid_device_id *id_table;
746
747 struct list_head dyn_list;
748 spinlock_t dyn_lock;
749
750 bool (*match)(struct hid_device *dev, bool ignore_special_driver);
751 int (*probe)(struct hid_device *dev, const struct hid_device_id *id);
752 void (*remove)(struct hid_device *dev);
753
754 const struct hid_report_id *report_table;
755 int (*raw_event)(struct hid_device *hdev, struct hid_report *report,
756 u8 *data, int size);
757 const struct hid_usage_id *usage_table;
758 int (*event)(struct hid_device *hdev, struct hid_field *field,
759 struct hid_usage *usage, __s32 value);
760 void (*report)(struct hid_device *hdev, struct hid_report *report);
761
762 __u8 *(*report_fixup)(struct hid_device *hdev, __u8 *buf,
763 unsigned int *size);
764
765 int (*input_mapping)(struct hid_device *hdev,
766 struct hid_input *hidinput, struct hid_field *field,
767 struct hid_usage *usage, unsigned long **bit, int *max);
768 int (*input_mapped)(struct hid_device *hdev,
769 struct hid_input *hidinput, struct hid_field *field,
770 struct hid_usage *usage, unsigned long **bit, int *max);
771 int (*input_configured)(struct hid_device *hdev,
772 struct hid_input *hidinput);
773 void (*feature_mapping)(struct hid_device *hdev,
774 struct hid_field *field,
775 struct hid_usage *usage);
776 #ifdef CONFIG_PM
777 int (*suspend)(struct hid_device *hdev, pm_message_t message);
778 int (*resume)(struct hid_device *hdev);
779 int (*reset_resume)(struct hid_device *hdev);
780 #endif
781 /* private: */
782 struct device_driver driver;
783 };
784
785 #define to_hid_driver(pdrv) \
786 container_of(pdrv, struct hid_driver, driver)
787
788 /**
789 * hid_ll_driver - low level driver callbacks
790 * @start: called on probe to start the device
791 * @stop: called on remove
792 * @open: called by input layer on open
793 * @close: called by input layer on close
794 * @power: request underlying hardware to enter requested power mode
795 * @parse: this method is called only once to parse the device data,
796 * shouldn't allocate anything to not leak memory
797 * @request: send report request to device (e.g. feature report)
798 * @wait: wait for buffered io to complete (send/recv reports)
799 * @raw_request: send raw report request to device (e.g. feature report)
800 * @output_report: send output report to device
801 * @idle: send idle request to device
802 * @max_buffer_size: over-ride maximum data buffer size (default: HID_MAX_BUFFER_SIZE)
803 */
804 struct hid_ll_driver {
805 int (*start)(struct hid_device *hdev);
806 void (*stop)(struct hid_device *hdev);
807
808 int (*open)(struct hid_device *hdev);
809 void (*close)(struct hid_device *hdev);
810
811 int (*power)(struct hid_device *hdev, int level);
812
813 int (*parse)(struct hid_device *hdev);
814
815 void (*request)(struct hid_device *hdev,
816 struct hid_report *report, int reqtype);
817
818 int (*wait)(struct hid_device *hdev);
819
820 int (*raw_request) (struct hid_device *hdev, unsigned char reportnum,
821 __u8 *buf, size_t len, unsigned char rtype,
822 int reqtype);
823
824 int (*output_report) (struct hid_device *hdev, __u8 *buf, size_t len);
825
826 int (*idle)(struct hid_device *hdev, int report, int idle, int reqtype);
827
828 unsigned int max_buffer_size;
829 };
830
831 extern struct hid_ll_driver i2c_hid_ll_driver;
832 extern struct hid_ll_driver hidp_hid_driver;
833 extern struct hid_ll_driver uhid_hid_driver;
834 extern struct hid_ll_driver usb_hid_driver;
835
hid_is_using_ll_driver(struct hid_device * hdev,struct hid_ll_driver * driver)836 static inline bool hid_is_using_ll_driver(struct hid_device *hdev,
837 struct hid_ll_driver *driver)
838 {
839 return hdev->ll_driver == driver;
840 }
841
hid_is_usb(struct hid_device * hdev)842 static inline bool hid_is_usb(struct hid_device *hdev)
843 {
844 return hid_is_using_ll_driver(hdev, &usb_hid_driver);
845 }
846
847 #define PM_HINT_FULLON 1<<5
848 #define PM_HINT_NORMAL 1<<1
849
850 /* Applications from HID Usage Tables 4/8/99 Version 1.1 */
851 /* We ignore a few input applications that are not widely used */
852 #define IS_INPUT_APPLICATION(a) (((a >= 0x00010000) && (a <= 0x00010008)) || (a == 0x00010080) || (a == 0x000c0001) || ((a >= 0x000d0002) && (a <= 0x000d0006)))
853
854 /* HID core API */
855
856 extern int hid_debug;
857
858 extern bool hid_ignore(struct hid_device *);
859 extern int hid_add_device(struct hid_device *);
860 extern void hid_destroy_device(struct hid_device *);
861
862 extern struct bus_type hid_bus_type;
863
864 extern int __must_check __hid_register_driver(struct hid_driver *,
865 struct module *, const char *mod_name);
866
867 /* use a define to avoid include chaining to get THIS_MODULE & friends */
868 #define hid_register_driver(driver) \
869 __hid_register_driver(driver, THIS_MODULE, KBUILD_MODNAME)
870
871 extern void hid_unregister_driver(struct hid_driver *);
872
873 /**
874 * module_hid_driver() - Helper macro for registering a HID driver
875 * @__hid_driver: hid_driver struct
876 *
877 * Helper macro for HID drivers which do not do anything special in module
878 * init/exit. This eliminates a lot of boilerplate. Each module may only
879 * use this macro once, and calling it replaces module_init() and module_exit()
880 */
881 #define module_hid_driver(__hid_driver) \
882 module_driver(__hid_driver, hid_register_driver, \
883 hid_unregister_driver)
884
885 extern void hidinput_hid_event(struct hid_device *, struct hid_field *, struct hid_usage *, __s32);
886 extern void hidinput_report_event(struct hid_device *hid, struct hid_report *report);
887 extern int hidinput_connect(struct hid_device *hid, unsigned int force);
888 extern void hidinput_disconnect(struct hid_device *);
889
890 int hid_set_field(struct hid_field *, unsigned, __s32);
891 int hid_input_report(struct hid_device *, int type, u8 *, u32, int);
892 int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field);
893 struct hid_field *hidinput_get_led_field(struct hid_device *hid);
894 unsigned int hidinput_count_leds(struct hid_device *hid);
895 __s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code);
896 void hid_output_report(struct hid_report *report, __u8 *data);
897 void __hid_request(struct hid_device *hid, struct hid_report *rep, int reqtype);
898 u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags);
899 struct hid_device *hid_allocate_device(void);
900 struct hid_report *hid_register_report(struct hid_device *device,
901 unsigned int type, unsigned int id,
902 unsigned int application);
903 int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size);
904 struct hid_report *hid_validate_values(struct hid_device *hid,
905 unsigned int type, unsigned int id,
906 unsigned int field_index,
907 unsigned int report_counts);
908 int hid_open_report(struct hid_device *device);
909 int hid_check_keys_pressed(struct hid_device *hid);
910 int hid_connect(struct hid_device *hid, unsigned int connect_mask);
911 void hid_disconnect(struct hid_device *hid);
912 bool hid_match_one_id(const struct hid_device *hdev,
913 const struct hid_device_id *id);
914 const struct hid_device_id *hid_match_id(const struct hid_device *hdev,
915 const struct hid_device_id *id);
916 const struct hid_device_id *hid_match_device(struct hid_device *hdev,
917 struct hid_driver *hdrv);
918 bool hid_compare_device_paths(struct hid_device *hdev_a,
919 struct hid_device *hdev_b, char separator);
920 s32 hid_snto32(__u32 value, unsigned n);
921 __u32 hid_field_extract(const struct hid_device *hid, __u8 *report,
922 unsigned offset, unsigned n);
923
924 /**
925 * hid_device_io_start - enable HID input during probe, remove
926 *
927 * @hid - the device
928 *
929 * This should only be called during probe or remove and only be
930 * called by the thread calling probe or remove. It will allow
931 * incoming packets to be delivered to the driver.
932 */
hid_device_io_start(struct hid_device * hid)933 static inline void hid_device_io_start(struct hid_device *hid) {
934 if (hid->io_started) {
935 dev_warn(&hid->dev, "io already started\n");
936 return;
937 }
938 hid->io_started = true;
939 up(&hid->driver_input_lock);
940 }
941
942 /**
943 * hid_device_io_stop - disable HID input during probe, remove
944 *
945 * @hid - the device
946 *
947 * Should only be called after hid_device_io_start. It will prevent
948 * incoming packets from going to the driver for the duration of
949 * probe, remove. If called during probe, packets will still go to the
950 * driver after probe is complete. This function should only be called
951 * by the thread calling probe or remove.
952 */
hid_device_io_stop(struct hid_device * hid)953 static inline void hid_device_io_stop(struct hid_device *hid) {
954 if (!hid->io_started) {
955 dev_warn(&hid->dev, "io already stopped\n");
956 return;
957 }
958 hid->io_started = false;
959 down(&hid->driver_input_lock);
960 }
961
962 /**
963 * hid_map_usage - map usage input bits
964 *
965 * @hidinput: hidinput which we are interested in
966 * @usage: usage to fill in
967 * @bit: pointer to input->{}bit (out parameter)
968 * @max: maximal valid usage->code to consider later (out parameter)
969 * @type: input event type (EV_KEY, EV_REL, ...)
970 * @c: code which corresponds to this usage and type
971 *
972 * The value pointed to by @bit will be set to NULL if either @type is
973 * an unhandled event type, or if @c is out of range for @type. This
974 * can be used as an error condition.
975 */
hid_map_usage(struct hid_input * hidinput,struct hid_usage * usage,unsigned long ** bit,int * max,__u8 type,unsigned int c)976 static inline void hid_map_usage(struct hid_input *hidinput,
977 struct hid_usage *usage, unsigned long **bit, int *max,
978 __u8 type, unsigned int c)
979 {
980 struct input_dev *input = hidinput->input;
981 unsigned long *bmap = NULL;
982 unsigned int limit = 0;
983
984 switch (type) {
985 case EV_ABS:
986 bmap = input->absbit;
987 limit = ABS_MAX;
988 break;
989 case EV_REL:
990 bmap = input->relbit;
991 limit = REL_MAX;
992 break;
993 case EV_KEY:
994 bmap = input->keybit;
995 limit = KEY_MAX;
996 break;
997 case EV_LED:
998 bmap = input->ledbit;
999 limit = LED_MAX;
1000 break;
1001 }
1002
1003 if (unlikely(c > limit || !bmap)) {
1004 pr_warn_ratelimited("%s: Invalid code %d type %d\n",
1005 input->name, c, type);
1006 *bit = NULL;
1007 return;
1008 }
1009
1010 usage->type = type;
1011 usage->code = c;
1012 *max = limit;
1013 *bit = bmap;
1014 }
1015
1016 /**
1017 * hid_map_usage_clear - map usage input bits and clear the input bit
1018 *
1019 * The same as hid_map_usage, except the @c bit is also cleared in supported
1020 * bits (@bit).
1021 */
hid_map_usage_clear(struct hid_input * hidinput,struct hid_usage * usage,unsigned long ** bit,int * max,__u8 type,__u16 c)1022 static inline void hid_map_usage_clear(struct hid_input *hidinput,
1023 struct hid_usage *usage, unsigned long **bit, int *max,
1024 __u8 type, __u16 c)
1025 {
1026 hid_map_usage(hidinput, usage, bit, max, type, c);
1027 if (*bit)
1028 clear_bit(usage->code, *bit);
1029 }
1030
1031 /**
1032 * hid_parse - parse HW reports
1033 *
1034 * @hdev: hid device
1035 *
1036 * Call this from probe after you set up the device (if needed). Your
1037 * report_fixup will be called (if non-NULL) after reading raw report from
1038 * device before passing it to hid layer for real parsing.
1039 */
hid_parse(struct hid_device * hdev)1040 static inline int __must_check hid_parse(struct hid_device *hdev)
1041 {
1042 return hid_open_report(hdev);
1043 }
1044
1045 int __must_check hid_hw_start(struct hid_device *hdev,
1046 unsigned int connect_mask);
1047 void hid_hw_stop(struct hid_device *hdev);
1048 int __must_check hid_hw_open(struct hid_device *hdev);
1049 void hid_hw_close(struct hid_device *hdev);
1050
1051 /**
1052 * hid_hw_power - requests underlying HW to go into given power mode
1053 *
1054 * @hdev: hid device
1055 * @level: requested power level (one of %PM_HINT_* defines)
1056 *
1057 * This function requests underlying hardware to enter requested power
1058 * mode.
1059 */
1060
hid_hw_power(struct hid_device * hdev,int level)1061 static inline int hid_hw_power(struct hid_device *hdev, int level)
1062 {
1063 return hdev->ll_driver->power ? hdev->ll_driver->power(hdev, level) : 0;
1064 }
1065
1066
1067 /**
1068 * hid_hw_request - send report request to device
1069 *
1070 * @hdev: hid device
1071 * @report: report to send
1072 * @reqtype: hid request type
1073 */
hid_hw_request(struct hid_device * hdev,struct hid_report * report,int reqtype)1074 static inline void hid_hw_request(struct hid_device *hdev,
1075 struct hid_report *report, int reqtype)
1076 {
1077 if (hdev->ll_driver->request)
1078 return hdev->ll_driver->request(hdev, report, reqtype);
1079
1080 __hid_request(hdev, report, reqtype);
1081 }
1082
1083 /**
1084 * hid_hw_raw_request - send report request to device
1085 *
1086 * @hdev: hid device
1087 * @reportnum: report ID
1088 * @buf: in/out data to transfer
1089 * @len: length of buf
1090 * @rtype: HID report type
1091 * @reqtype: HID_REQ_GET_REPORT or HID_REQ_SET_REPORT
1092 *
1093 * @return: count of data transfered, negative if error
1094 *
1095 * Same behavior as hid_hw_request, but with raw buffers instead.
1096 */
hid_hw_raw_request(struct hid_device * hdev,unsigned char reportnum,__u8 * buf,size_t len,unsigned char rtype,int reqtype)1097 static inline int hid_hw_raw_request(struct hid_device *hdev,
1098 unsigned char reportnum, __u8 *buf,
1099 size_t len, unsigned char rtype, int reqtype)
1100 {
1101 if (len < 1 || len > HID_MAX_BUFFER_SIZE || !buf)
1102 return -EINVAL;
1103
1104 return hdev->ll_driver->raw_request(hdev, reportnum, buf, len,
1105 rtype, reqtype);
1106 }
1107
1108 /**
1109 * hid_hw_output_report - send output report to device
1110 *
1111 * @hdev: hid device
1112 * @buf: raw data to transfer
1113 * @len: length of buf
1114 *
1115 * @return: count of data transfered, negative if error
1116 */
hid_hw_output_report(struct hid_device * hdev,__u8 * buf,size_t len)1117 static inline int hid_hw_output_report(struct hid_device *hdev, __u8 *buf,
1118 size_t len)
1119 {
1120 if (len < 1 || len > HID_MAX_BUFFER_SIZE || !buf)
1121 return -EINVAL;
1122
1123 if (hdev->ll_driver->output_report)
1124 return hdev->ll_driver->output_report(hdev, buf, len);
1125
1126 return -ENOSYS;
1127 }
1128
1129 /**
1130 * hid_hw_idle - send idle request to device
1131 *
1132 * @hdev: hid device
1133 * @report: report to control
1134 * @idle: idle state
1135 * @reqtype: hid request type
1136 */
hid_hw_idle(struct hid_device * hdev,int report,int idle,int reqtype)1137 static inline int hid_hw_idle(struct hid_device *hdev, int report, int idle,
1138 int reqtype)
1139 {
1140 if (hdev->ll_driver->idle)
1141 return hdev->ll_driver->idle(hdev, report, idle, reqtype);
1142
1143 return 0;
1144 }
1145
1146 /**
1147 * hid_hw_wait - wait for buffered io to complete
1148 *
1149 * @hdev: hid device
1150 */
hid_hw_wait(struct hid_device * hdev)1151 static inline void hid_hw_wait(struct hid_device *hdev)
1152 {
1153 if (hdev->ll_driver->wait)
1154 hdev->ll_driver->wait(hdev);
1155 }
1156
1157 /**
1158 * hid_report_len - calculate the report length
1159 *
1160 * @report: the report we want to know the length
1161 */
hid_report_len(struct hid_report * report)1162 static inline u32 hid_report_len(struct hid_report *report)
1163 {
1164 return DIV_ROUND_UP(report->size, 8) + (report->id > 0);
1165 }
1166
1167 int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, u32 size,
1168 int interrupt);
1169
1170 /* HID quirks API */
1171 unsigned long hid_lookup_quirk(const struct hid_device *hdev);
1172 int hid_quirks_init(char **quirks_param, __u16 bus, int count);
1173 void hid_quirks_exit(__u16 bus);
1174
1175 #ifdef CONFIG_HID_PID
1176 int hid_pidff_init(struct hid_device *hid);
1177 #else
1178 #define hid_pidff_init NULL
1179 #endif
1180
1181 #define dbg_hid(format, arg...) \
1182 do { \
1183 if (hid_debug) \
1184 printk(KERN_DEBUG "%s: " format, __FILE__, ##arg); \
1185 } while (0)
1186
1187 #define hid_printk(level, hid, fmt, arg...) \
1188 dev_printk(level, &(hid)->dev, fmt, ##arg)
1189 #define hid_emerg(hid, fmt, arg...) \
1190 dev_emerg(&(hid)->dev, fmt, ##arg)
1191 #define hid_crit(hid, fmt, arg...) \
1192 dev_crit(&(hid)->dev, fmt, ##arg)
1193 #define hid_alert(hid, fmt, arg...) \
1194 dev_alert(&(hid)->dev, fmt, ##arg)
1195 #define hid_err(hid, fmt, arg...) \
1196 dev_err(&(hid)->dev, fmt, ##arg)
1197 #define hid_notice(hid, fmt, arg...) \
1198 dev_notice(&(hid)->dev, fmt, ##arg)
1199 #define hid_warn(hid, fmt, arg...) \
1200 dev_warn(&(hid)->dev, fmt, ##arg)
1201 #define hid_info(hid, fmt, arg...) \
1202 dev_info(&(hid)->dev, fmt, ##arg)
1203 #define hid_dbg(hid, fmt, arg...) \
1204 dev_dbg(&(hid)->dev, fmt, ##arg)
1205
1206 #endif
1207