1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3 * Copyright (c) 1999 Andreas Gal
4 * Copyright (c) 2000-2001 Vojtech Pavlik
5 * Copyright (c) 2006-2007 Jiri Kosina
6 */
7 /*
8 *
9 * Should you need to contact me, the author, you can do so either by
10 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
11 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
12 */
13 #ifndef __HID_H
14 #define __HID_H
15
16
17 #include <linux/bitops.h>
18 #include <linux/types.h>
19 #include <linux/slab.h>
20 #include <linux/list.h>
21 #include <linux/mod_devicetable.h> /* hid_device_id */
22 #include <linux/timer.h>
23 #include <linux/workqueue.h>
24 #include <linux/input.h>
25 #include <linux/semaphore.h>
26 #include <linux/mutex.h>
27 #include <linux/power_supply.h>
28 #include <uapi/linux/hid.h>
29
30 /*
31 * We parse each description item into this structure. Short items data
32 * values are expanded to 32-bit signed int, long items contain a pointer
33 * into the data area.
34 */
35
36 struct hid_item {
37 unsigned format;
38 __u8 size;
39 __u8 type;
40 __u8 tag;
41 union {
42 __u8 u8;
43 __s8 s8;
44 __u16 u16;
45 __s16 s16;
46 __u32 u32;
47 __s32 s32;
48 __u8 *longdata;
49 } data;
50 };
51
52 /*
53 * HID report item format
54 */
55
56 #define HID_ITEM_FORMAT_SHORT 0
57 #define HID_ITEM_FORMAT_LONG 1
58
59 /*
60 * Special tag indicating long items
61 */
62
63 #define HID_ITEM_TAG_LONG 15
64
65 /*
66 * HID report descriptor item type (prefix bit 2,3)
67 */
68
69 #define HID_ITEM_TYPE_MAIN 0
70 #define HID_ITEM_TYPE_GLOBAL 1
71 #define HID_ITEM_TYPE_LOCAL 2
72 #define HID_ITEM_TYPE_RESERVED 3
73
74 /*
75 * HID report descriptor main item tags
76 */
77
78 #define HID_MAIN_ITEM_TAG_INPUT 8
79 #define HID_MAIN_ITEM_TAG_OUTPUT 9
80 #define HID_MAIN_ITEM_TAG_FEATURE 11
81 #define HID_MAIN_ITEM_TAG_BEGIN_COLLECTION 10
82 #define HID_MAIN_ITEM_TAG_END_COLLECTION 12
83
84 /*
85 * HID report descriptor main item contents
86 */
87
88 #define HID_MAIN_ITEM_CONSTANT 0x001
89 #define HID_MAIN_ITEM_VARIABLE 0x002
90 #define HID_MAIN_ITEM_RELATIVE 0x004
91 #define HID_MAIN_ITEM_WRAP 0x008
92 #define HID_MAIN_ITEM_NONLINEAR 0x010
93 #define HID_MAIN_ITEM_NO_PREFERRED 0x020
94 #define HID_MAIN_ITEM_NULL_STATE 0x040
95 #define HID_MAIN_ITEM_VOLATILE 0x080
96 #define HID_MAIN_ITEM_BUFFERED_BYTE 0x100
97
98 /*
99 * HID report descriptor collection item types
100 */
101
102 #define HID_COLLECTION_PHYSICAL 0
103 #define HID_COLLECTION_APPLICATION 1
104 #define HID_COLLECTION_LOGICAL 2
105
106 /*
107 * HID report descriptor global item tags
108 */
109
110 #define HID_GLOBAL_ITEM_TAG_USAGE_PAGE 0
111 #define HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM 1
112 #define HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM 2
113 #define HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM 3
114 #define HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM 4
115 #define HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT 5
116 #define HID_GLOBAL_ITEM_TAG_UNIT 6
117 #define HID_GLOBAL_ITEM_TAG_REPORT_SIZE 7
118 #define HID_GLOBAL_ITEM_TAG_REPORT_ID 8
119 #define HID_GLOBAL_ITEM_TAG_REPORT_COUNT 9
120 #define HID_GLOBAL_ITEM_TAG_PUSH 10
121 #define HID_GLOBAL_ITEM_TAG_POP 11
122
123 /*
124 * HID report descriptor local item tags
125 */
126
127 #define HID_LOCAL_ITEM_TAG_USAGE 0
128 #define HID_LOCAL_ITEM_TAG_USAGE_MINIMUM 1
129 #define HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM 2
130 #define HID_LOCAL_ITEM_TAG_DESIGNATOR_INDEX 3
131 #define HID_LOCAL_ITEM_TAG_DESIGNATOR_MINIMUM 4
132 #define HID_LOCAL_ITEM_TAG_DESIGNATOR_MAXIMUM 5
133 #define HID_LOCAL_ITEM_TAG_STRING_INDEX 7
134 #define HID_LOCAL_ITEM_TAG_STRING_MINIMUM 8
135 #define HID_LOCAL_ITEM_TAG_STRING_MAXIMUM 9
136 #define HID_LOCAL_ITEM_TAG_DELIMITER 10
137
138 /*
139 * HID usage tables
140 */
141
142 #define HID_USAGE_PAGE 0xffff0000
143
144 #define HID_UP_UNDEFINED 0x00000000
145 #define HID_UP_GENDESK 0x00010000
146 #define HID_UP_SIMULATION 0x00020000
147 #define HID_UP_GENDEVCTRLS 0x00060000
148 #define HID_UP_KEYBOARD 0x00070000
149 #define HID_UP_LED 0x00080000
150 #define HID_UP_BUTTON 0x00090000
151 #define HID_UP_ORDINAL 0x000a0000
152 #define HID_UP_TELEPHONY 0x000b0000
153 #define HID_UP_CONSUMER 0x000c0000
154 #define HID_UP_DIGITIZER 0x000d0000
155 #define HID_UP_PID 0x000f0000
156 #define HID_UP_HPVENDOR 0xff7f0000
157 #define HID_UP_HPVENDOR2 0xff010000
158 #define HID_UP_MSVENDOR 0xff000000
159 #define HID_UP_CUSTOM 0x00ff0000
160 #define HID_UP_LOGIVENDOR 0xffbc0000
161 #define HID_UP_LOGIVENDOR2 0xff090000
162 #define HID_UP_LOGIVENDOR3 0xff430000
163 #define HID_UP_LNVENDOR 0xffa00000
164 #define HID_UP_SENSOR 0x00200000
165 #define HID_UP_ASUSVENDOR 0xff310000
166 #define HID_UP_GOOGLEVENDOR 0xffd10000
167
168 #define HID_USAGE 0x0000ffff
169
170 #define HID_GD_POINTER 0x00010001
171 #define HID_GD_MOUSE 0x00010002
172 #define HID_GD_JOYSTICK 0x00010004
173 #define HID_GD_GAMEPAD 0x00010005
174 #define HID_GD_KEYBOARD 0x00010006
175 #define HID_GD_KEYPAD 0x00010007
176 #define HID_GD_MULTIAXIS 0x00010008
177 /*
178 * Microsoft Win8 Wireless Radio Controls extensions CA, see:
179 * http://www.usb.org/developers/hidpage/HUTRR40RadioHIDUsagesFinal.pdf
180 */
181 #define HID_GD_WIRELESS_RADIO_CTLS 0x0001000c
182 /*
183 * System Multi-Axis, see:
184 * http://www.usb.org/developers/hidpage/HUTRR62_-_Generic_Desktop_CA_for_System_Multi-Axis_Controllers.txt
185 */
186 #define HID_GD_SYSTEM_MULTIAXIS 0x0001000e
187
188 #define HID_GD_X 0x00010030
189 #define HID_GD_Y 0x00010031
190 #define HID_GD_Z 0x00010032
191 #define HID_GD_RX 0x00010033
192 #define HID_GD_RY 0x00010034
193 #define HID_GD_RZ 0x00010035
194 #define HID_GD_SLIDER 0x00010036
195 #define HID_GD_DIAL 0x00010037
196 #define HID_GD_WHEEL 0x00010038
197 #define HID_GD_HATSWITCH 0x00010039
198 #define HID_GD_BUFFER 0x0001003a
199 #define HID_GD_BYTECOUNT 0x0001003b
200 #define HID_GD_MOTION 0x0001003c
201 #define HID_GD_START 0x0001003d
202 #define HID_GD_SELECT 0x0001003e
203 #define HID_GD_VX 0x00010040
204 #define HID_GD_VY 0x00010041
205 #define HID_GD_VZ 0x00010042
206 #define HID_GD_VBRX 0x00010043
207 #define HID_GD_VBRY 0x00010044
208 #define HID_GD_VBRZ 0x00010045
209 #define HID_GD_VNO 0x00010046
210 #define HID_GD_FEATURE 0x00010047
211 #define HID_GD_RESOLUTION_MULTIPLIER 0x00010048
212 #define HID_GD_SYSTEM_CONTROL 0x00010080
213 #define HID_GD_UP 0x00010090
214 #define HID_GD_DOWN 0x00010091
215 #define HID_GD_RIGHT 0x00010092
216 #define HID_GD_LEFT 0x00010093
217 /* Microsoft Win8 Wireless Radio Controls CA usage codes */
218 #define HID_GD_RFKILL_BTN 0x000100c6
219 #define HID_GD_RFKILL_LED 0x000100c7
220 #define HID_GD_RFKILL_SWITCH 0x000100c8
221
222 #define HID_DC_BATTERYSTRENGTH 0x00060020
223
224 #define HID_CP_CONSUMER_CONTROL 0x000c0001
225 #define HID_CP_AC_PAN 0x000c0238
226
227 #define HID_DG_DIGITIZER 0x000d0001
228 #define HID_DG_PEN 0x000d0002
229 #define HID_DG_LIGHTPEN 0x000d0003
230 #define HID_DG_TOUCHSCREEN 0x000d0004
231 #define HID_DG_TOUCHPAD 0x000d0005
232 #define HID_DG_WHITEBOARD 0x000d0006
233 #define HID_DG_STYLUS 0x000d0020
234 #define HID_DG_PUCK 0x000d0021
235 #define HID_DG_FINGER 0x000d0022
236 #define HID_DG_TIPPRESSURE 0x000d0030
237 #define HID_DG_BARRELPRESSURE 0x000d0031
238 #define HID_DG_INRANGE 0x000d0032
239 #define HID_DG_TOUCH 0x000d0033
240 #define HID_DG_UNTOUCH 0x000d0034
241 #define HID_DG_TAP 0x000d0035
242 #define HID_DG_TABLETFUNCTIONKEY 0x000d0039
243 #define HID_DG_PROGRAMCHANGEKEY 0x000d003a
244 #define HID_DG_BATTERYSTRENGTH 0x000d003b
245 #define HID_DG_INVERT 0x000d003c
246 #define HID_DG_TILT_X 0x000d003d
247 #define HID_DG_TILT_Y 0x000d003e
248 #define HID_DG_TWIST 0x000d0041
249 #define HID_DG_TIPSWITCH 0x000d0042
250 #define HID_DG_TIPSWITCH2 0x000d0043
251 #define HID_DG_BARRELSWITCH 0x000d0044
252 #define HID_DG_ERASER 0x000d0045
253 #define HID_DG_TABLETPICK 0x000d0046
254
255 #define HID_CP_CONSUMERCONTROL 0x000c0001
256 #define HID_CP_NUMERICKEYPAD 0x000c0002
257 #define HID_CP_PROGRAMMABLEBUTTONS 0x000c0003
258 #define HID_CP_MICROPHONE 0x000c0004
259 #define HID_CP_HEADPHONE 0x000c0005
260 #define HID_CP_GRAPHICEQUALIZER 0x000c0006
261 #define HID_CP_FUNCTIONBUTTONS 0x000c0036
262 #define HID_CP_SELECTION 0x000c0080
263 #define HID_CP_MEDIASELECTION 0x000c0087
264 #define HID_CP_SELECTDISC 0x000c00ba
265 #define HID_CP_VOLUMEUP 0x000c00e9
266 #define HID_CP_VOLUMEDOWN 0x000c00ea
267 #define HID_CP_PLAYBACKSPEED 0x000c00f1
268 #define HID_CP_PROXIMITY 0x000c0109
269 #define HID_CP_SPEAKERSYSTEM 0x000c0160
270 #define HID_CP_CHANNELLEFT 0x000c0161
271 #define HID_CP_CHANNELRIGHT 0x000c0162
272 #define HID_CP_CHANNELCENTER 0x000c0163
273 #define HID_CP_CHANNELFRONT 0x000c0164
274 #define HID_CP_CHANNELCENTERFRONT 0x000c0165
275 #define HID_CP_CHANNELSIDE 0x000c0166
276 #define HID_CP_CHANNELSURROUND 0x000c0167
277 #define HID_CP_CHANNELLOWFREQUENCYENHANCEMENT 0x000c0168
278 #define HID_CP_CHANNELTOP 0x000c0169
279 #define HID_CP_CHANNELUNKNOWN 0x000c016a
280 #define HID_CP_APPLICATIONLAUNCHBUTTONS 0x000c0180
281 #define HID_CP_GENERICGUIAPPLICATIONCONTROLS 0x000c0200
282
283 #define HID_DG_DEVICECONFIG 0x000d000e
284 #define HID_DG_DEVICESETTINGS 0x000d0023
285 #define HID_DG_AZIMUTH 0x000d003f
286 #define HID_DG_CONFIDENCE 0x000d0047
287 #define HID_DG_WIDTH 0x000d0048
288 #define HID_DG_HEIGHT 0x000d0049
289 #define HID_DG_CONTACTID 0x000d0051
290 #define HID_DG_INPUTMODE 0x000d0052
291 #define HID_DG_DEVICEINDEX 0x000d0053
292 #define HID_DG_CONTACTCOUNT 0x000d0054
293 #define HID_DG_CONTACTMAX 0x000d0055
294 #define HID_DG_SCANTIME 0x000d0056
295 #define HID_DG_SURFACESWITCH 0x000d0057
296 #define HID_DG_BUTTONSWITCH 0x000d0058
297 #define HID_DG_BUTTONTYPE 0x000d0059
298 #define HID_DG_BARRELSWITCH2 0x000d005a
299 #define HID_DG_TOOLSERIALNUMBER 0x000d005b
300 #define HID_DG_LATENCYMODE 0x000d0060
301
302 #define HID_VD_ASUS_CUSTOM_MEDIA_KEYS 0xff310076
303 /*
304 * HID report types --- Ouch! HID spec says 1 2 3!
305 */
306
307 #define HID_INPUT_REPORT 0
308 #define HID_OUTPUT_REPORT 1
309 #define HID_FEATURE_REPORT 2
310
311 #define HID_REPORT_TYPES 3
312
313 /*
314 * HID connect requests
315 */
316
317 #define HID_CONNECT_HIDINPUT BIT(0)
318 #define HID_CONNECT_HIDINPUT_FORCE BIT(1)
319 #define HID_CONNECT_HIDRAW BIT(2)
320 #define HID_CONNECT_HIDDEV BIT(3)
321 #define HID_CONNECT_HIDDEV_FORCE BIT(4)
322 #define HID_CONNECT_FF BIT(5)
323 #define HID_CONNECT_DRIVER BIT(6)
324 #define HID_CONNECT_DEFAULT (HID_CONNECT_HIDINPUT|HID_CONNECT_HIDRAW| \
325 HID_CONNECT_HIDDEV|HID_CONNECT_FF)
326
327 /*
328 * HID device quirks.
329 */
330
331 /*
332 * Increase this if you need to configure more HID quirks at module load time
333 */
334 #define MAX_USBHID_BOOT_QUIRKS 4
335
336 #define HID_QUIRK_INVERT BIT(0)
337 #define HID_QUIRK_NOTOUCH BIT(1)
338 #define HID_QUIRK_IGNORE BIT(2)
339 #define HID_QUIRK_NOGET BIT(3)
340 #define HID_QUIRK_HIDDEV_FORCE BIT(4)
341 #define HID_QUIRK_BADPAD BIT(5)
342 #define HID_QUIRK_MULTI_INPUT BIT(6)
343 #define HID_QUIRK_HIDINPUT_FORCE BIT(7)
344 /* BIT(8) reserved for backward compatibility, was HID_QUIRK_NO_EMPTY_INPUT */
345 /* BIT(9) reserved for backward compatibility, was NO_INIT_INPUT_REPORTS */
346 #define HID_QUIRK_ALWAYS_POLL BIT(10)
347 #define HID_QUIRK_INPUT_PER_APP BIT(11)
348 #define HID_QUIRK_X_INVERT BIT(12)
349 #define HID_QUIRK_Y_INVERT BIT(13)
350 #define HID_QUIRK_SKIP_OUTPUT_REPORTS BIT(16)
351 #define HID_QUIRK_SKIP_OUTPUT_REPORT_ID BIT(17)
352 #define HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP BIT(18)
353 #define HID_QUIRK_HAVE_SPECIAL_DRIVER BIT(19)
354 #define HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE BIT(20)
355 #define HID_QUIRK_FULLSPEED_INTERVAL BIT(28)
356 #define HID_QUIRK_NO_INIT_REPORTS BIT(29)
357 #define HID_QUIRK_NO_IGNORE BIT(30)
358 #define HID_QUIRK_NO_INPUT_SYNC BIT(31)
359
360 /*
361 * HID device groups
362 *
363 * Note: HID_GROUP_ANY is declared in linux/mod_devicetable.h
364 * and has a value of 0x0000
365 */
366 #define HID_GROUP_GENERIC 0x0001
367 #define HID_GROUP_MULTITOUCH 0x0002
368 #define HID_GROUP_SENSOR_HUB 0x0003
369 #define HID_GROUP_MULTITOUCH_WIN_8 0x0004
370
371 /*
372 * Vendor specific HID device groups
373 */
374 #define HID_GROUP_RMI 0x0100
375 #define HID_GROUP_WACOM 0x0101
376 #define HID_GROUP_LOGITECH_DJ_DEVICE 0x0102
377 #define HID_GROUP_STEAM 0x0103
378 #define HID_GROUP_LOGITECH_27MHZ_DEVICE 0x0104
379 #define HID_GROUP_VIVALDI 0x0105
380
381 /*
382 * HID protocol status
383 */
384 #define HID_REPORT_PROTOCOL 1
385 #define HID_BOOT_PROTOCOL 0
386
387 /*
388 * This is the global environment of the parser. This information is
389 * persistent for main-items. The global environment can be saved and
390 * restored with PUSH/POP statements.
391 */
392
393 struct hid_global {
394 unsigned usage_page;
395 __s32 logical_minimum;
396 __s32 logical_maximum;
397 __s32 physical_minimum;
398 __s32 physical_maximum;
399 __s32 unit_exponent;
400 unsigned unit;
401 unsigned report_id;
402 unsigned report_size;
403 unsigned report_count;
404 };
405
406 /*
407 * This is the local environment. It is persistent up the next main-item.
408 */
409
410 #define HID_MAX_USAGES 12288
411 #define HID_DEFAULT_NUM_COLLECTIONS 16
412
413 struct hid_local {
414 unsigned usage[HID_MAX_USAGES]; /* usage array */
415 u8 usage_size[HID_MAX_USAGES]; /* usage size array */
416 unsigned collection_index[HID_MAX_USAGES]; /* collection index array */
417 unsigned usage_index;
418 unsigned usage_minimum;
419 unsigned delimiter_depth;
420 unsigned delimiter_branch;
421 };
422
423 /*
424 * This is the collection stack. We climb up the stack to determine
425 * application and function of each field.
426 */
427
428 struct hid_collection {
429 int parent_idx; /* device->collection */
430 unsigned type;
431 unsigned usage;
432 unsigned level;
433 };
434
435 struct hid_usage {
436 unsigned hid; /* hid usage code */
437 unsigned collection_index; /* index into collection array */
438 unsigned usage_index; /* index into usage array */
439 __s8 resolution_multiplier;/* Effective Resolution Multiplier
440 (HUT v1.12, 4.3.1), default: 1 */
441 /* hidinput data */
442 __s8 wheel_factor; /* 120/resolution_multiplier */
443 __u16 code; /* input driver code */
444 __u8 type; /* input driver type */
445 __s8 hat_min; /* hat switch fun */
446 __s8 hat_max; /* ditto */
447 __s8 hat_dir; /* ditto */
448 __s16 wheel_accumulated; /* hi-res wheel */
449 };
450
451 struct hid_input;
452
453 struct hid_field {
454 unsigned physical; /* physical usage for this field */
455 unsigned logical; /* logical usage for this field */
456 unsigned application; /* application usage for this field */
457 struct hid_usage *usage; /* usage table for this function */
458 unsigned maxusage; /* maximum usage index */
459 unsigned flags; /* main-item flags (i.e. volatile,array,constant) */
460 unsigned report_offset; /* bit offset in the report */
461 unsigned report_size; /* size of this field in the report */
462 unsigned report_count; /* number of this field in the report */
463 unsigned report_type; /* (input,output,feature) */
464 __s32 *value; /* last known value(s) */
465 __s32 logical_minimum;
466 __s32 logical_maximum;
467 __s32 physical_minimum;
468 __s32 physical_maximum;
469 __s32 unit_exponent;
470 unsigned unit;
471 struct hid_report *report; /* associated report */
472 unsigned index; /* index into report->field[] */
473 /* hidinput data */
474 struct hid_input *hidinput; /* associated input structure */
475 __u16 dpad; /* dpad input code */
476 };
477
478 #define HID_MAX_FIELDS 256
479
480 struct hid_report {
481 struct list_head list;
482 struct list_head hidinput_list;
483 unsigned int id; /* id of this report */
484 unsigned int type; /* report type */
485 unsigned int application; /* application usage for this report */
486 struct hid_field *field[HID_MAX_FIELDS]; /* fields of the report */
487 unsigned maxfield; /* maximum valid field index */
488 unsigned size; /* size of the report (bits) */
489 struct hid_device *device; /* associated device */
490 };
491
492 #define HID_MAX_IDS 256
493
494 struct hid_report_enum {
495 unsigned numbered;
496 struct list_head report_list;
497 struct hid_report *report_id_hash[HID_MAX_IDS];
498 };
499
500 #define HID_MIN_BUFFER_SIZE 64 /* make sure there is at least a packet size of space */
501 #define HID_MAX_BUFFER_SIZE 8192 /* 8kb */
502 #define HID_CONTROL_FIFO_SIZE 256 /* to init devices with >100 reports */
503 #define HID_OUTPUT_FIFO_SIZE 64
504
505 struct hid_control_fifo {
506 unsigned char dir;
507 struct hid_report *report;
508 char *raw_report;
509 };
510
511 struct hid_output_fifo {
512 struct hid_report *report;
513 char *raw_report;
514 };
515
516 #define HID_CLAIMED_INPUT BIT(0)
517 #define HID_CLAIMED_HIDDEV BIT(1)
518 #define HID_CLAIMED_HIDRAW BIT(2)
519 #define HID_CLAIMED_DRIVER BIT(3)
520
521 #define HID_STAT_ADDED BIT(0)
522 #define HID_STAT_PARSED BIT(1)
523 #define HID_STAT_DUP_DETECTED BIT(2)
524 #define HID_STAT_REPROBED BIT(3)
525
526 struct hid_input {
527 struct list_head list;
528 struct hid_report *report;
529 struct input_dev *input;
530 const char *name;
531 bool registered;
532 struct list_head reports; /* the list of reports */
533 unsigned int application; /* application usage for this input */
534 };
535
536 enum hid_type {
537 HID_TYPE_OTHER = 0,
538 HID_TYPE_USBMOUSE,
539 HID_TYPE_USBNONE
540 };
541
542 enum hid_battery_status {
543 HID_BATTERY_UNKNOWN = 0,
544 HID_BATTERY_QUERIED, /* Kernel explicitly queried battery strength */
545 HID_BATTERY_REPORTED, /* Device sent unsolicited battery strength report */
546 };
547
548 struct hid_driver;
549 struct hid_ll_driver;
550
551 struct hid_device { /* device report descriptor */
552 __u8 *dev_rdesc;
553 unsigned dev_rsize;
554 __u8 *rdesc;
555 unsigned rsize;
556 struct hid_collection *collection; /* List of HID collections */
557 unsigned collection_size; /* Number of allocated hid_collections */
558 unsigned maxcollection; /* Number of parsed collections */
559 unsigned maxapplication; /* Number of applications */
560 __u16 bus; /* BUS ID */
561 __u16 group; /* Report group */
562 __u32 vendor; /* Vendor ID */
563 __u32 product; /* Product ID */
564 __u32 version; /* HID version */
565 enum hid_type type; /* device type (mouse, kbd, ...) */
566 unsigned country; /* HID country */
567 struct hid_report_enum report_enum[HID_REPORT_TYPES];
568 struct work_struct led_work; /* delayed LED worker */
569
570 struct semaphore driver_input_lock; /* protects the current driver */
571 struct device dev; /* device */
572 struct hid_driver *driver;
573
574 struct hid_ll_driver *ll_driver;
575 struct mutex ll_open_lock;
576 unsigned int ll_open_count;
577
578 #ifdef CONFIG_HID_BATTERY_STRENGTH
579 /*
580 * Power supply information for HID devices which report
581 * battery strength. power_supply was successfully registered if
582 * battery is non-NULL.
583 */
584 struct power_supply *battery;
585 __s32 battery_capacity;
586 __s32 battery_min;
587 __s32 battery_max;
588 __s32 battery_report_type;
589 __s32 battery_report_id;
590 enum hid_battery_status battery_status;
591 bool battery_avoid_query;
592 #endif
593
594 unsigned long status; /* see STAT flags above */
595 unsigned claimed; /* Claimed by hidinput, hiddev? */
596 unsigned quirks; /* Various quirks the device can pull on us */
597 bool io_started; /* If IO has started */
598
599 struct list_head inputs; /* The list of inputs */
600 void *hiddev; /* The hiddev structure */
601 void *hidraw;
602
603 char name[128]; /* Device name */
604 char phys[64]; /* Device physical location */
605 char uniq[64]; /* Device unique identifier (serial #) */
606
607 void *driver_data;
608
609 /* temporary hid_ff handling (until moved to the drivers) */
610 int (*ff_init)(struct hid_device *);
611
612 /* hiddev event handler */
613 int (*hiddev_connect)(struct hid_device *, unsigned int);
614 void (*hiddev_disconnect)(struct hid_device *);
615 void (*hiddev_hid_event) (struct hid_device *, struct hid_field *field,
616 struct hid_usage *, __s32);
617 void (*hiddev_report_event) (struct hid_device *, struct hid_report *);
618
619 /* debugging support via debugfs */
620 unsigned short debug;
621 struct dentry *debug_dir;
622 struct dentry *debug_rdesc;
623 struct dentry *debug_events;
624 struct list_head debug_list;
625 spinlock_t debug_list_lock;
626 wait_queue_head_t debug_wait;
627 };
628
629 #define to_hid_device(pdev) \
630 container_of(pdev, struct hid_device, dev)
631
hid_get_drvdata(struct hid_device * hdev)632 static inline void *hid_get_drvdata(struct hid_device *hdev)
633 {
634 return dev_get_drvdata(&hdev->dev);
635 }
636
hid_set_drvdata(struct hid_device * hdev,void * data)637 static inline void hid_set_drvdata(struct hid_device *hdev, void *data)
638 {
639 dev_set_drvdata(&hdev->dev, data);
640 }
641
642 #define HID_GLOBAL_STACK_SIZE 4
643 #define HID_COLLECTION_STACK_SIZE 4
644
645 #define HID_SCAN_FLAG_MT_WIN_8 BIT(0)
646 #define HID_SCAN_FLAG_VENDOR_SPECIFIC BIT(1)
647 #define HID_SCAN_FLAG_GD_POINTER BIT(2)
648
649 struct hid_parser {
650 struct hid_global global;
651 struct hid_global global_stack[HID_GLOBAL_STACK_SIZE];
652 unsigned int global_stack_ptr;
653 struct hid_local local;
654 unsigned int *collection_stack;
655 unsigned int collection_stack_ptr;
656 unsigned int collection_stack_size;
657 struct hid_device *device;
658 unsigned int scan_flags;
659 };
660
661 struct hid_class_descriptor {
662 __u8 bDescriptorType;
663 __le16 wDescriptorLength;
664 } __attribute__ ((packed));
665
666 struct hid_descriptor {
667 __u8 bLength;
668 __u8 bDescriptorType;
669 __le16 bcdHID;
670 __u8 bCountryCode;
671 __u8 bNumDescriptors;
672
673 struct hid_class_descriptor desc[1];
674 } __attribute__ ((packed));
675
676 #define HID_DEVICE(b, g, ven, prod) \
677 .bus = (b), .group = (g), .vendor = (ven), .product = (prod)
678 #define HID_USB_DEVICE(ven, prod) \
679 .bus = BUS_USB, .vendor = (ven), .product = (prod)
680 #define HID_BLUETOOTH_DEVICE(ven, prod) \
681 .bus = BUS_BLUETOOTH, .vendor = (ven), .product = (prod)
682 #define HID_I2C_DEVICE(ven, prod) \
683 .bus = BUS_I2C, .vendor = (ven), .product = (prod)
684
685 #define HID_REPORT_ID(rep) \
686 .report_type = (rep)
687 #define HID_USAGE_ID(uhid, utype, ucode) \
688 .usage_hid = (uhid), .usage_type = (utype), .usage_code = (ucode)
689 /* we don't want to catch types and codes equal to 0 */
690 #define HID_TERMINATOR (HID_ANY_ID - 1)
691
692 struct hid_report_id {
693 __u32 report_type;
694 };
695 struct hid_usage_id {
696 __u32 usage_hid;
697 __u32 usage_type;
698 __u32 usage_code;
699 };
700
701 /**
702 * struct hid_driver
703 * @name: driver name (e.g. "Footech_bar-wheel")
704 * @id_table: which devices is this driver for (must be non-NULL for probe
705 * to be called)
706 * @dyn_list: list of dynamically added device ids
707 * @dyn_lock: lock protecting @dyn_list
708 * @match: check if the given device is handled by this driver
709 * @probe: new device inserted
710 * @remove: device removed (NULL if not a hot-plug capable driver)
711 * @report_table: on which reports to call raw_event (NULL means all)
712 * @raw_event: if report in report_table, this hook is called (NULL means nop)
713 * @usage_table: on which events to call event (NULL means all)
714 * @event: if usage in usage_table, this hook is called (NULL means nop)
715 * @report: this hook is called after parsing a report (NULL means nop)
716 * @report_fixup: called before report descriptor parsing (NULL means nop)
717 * @input_mapping: invoked on input registering before mapping an usage
718 * @input_mapped: invoked on input registering after mapping an usage
719 * @input_configured: invoked just before the device is registered
720 * @feature_mapping: invoked on feature registering
721 * @suspend: invoked on suspend (NULL means nop)
722 * @resume: invoked on resume if device was not reset (NULL means nop)
723 * @reset_resume: invoked on resume if device was reset (NULL means nop)
724 *
725 * probe should return -errno on error, or 0 on success. During probe,
726 * input will not be passed to raw_event unless hid_device_io_start is
727 * called.
728 *
729 * raw_event and event should return negative on error, any other value will
730 * pass the event on to .event() typically return 0 for success.
731 *
732 * input_mapping shall return a negative value to completely ignore this usage
733 * (e.g. doubled or invalid usage), zero to continue with parsing of this
734 * usage by generic code (no special handling needed) or positive to skip
735 * generic parsing (needed special handling which was done in the hook already)
736 * input_mapped shall return negative to inform the layer that this usage
737 * should not be considered for further processing or zero to notify that
738 * no processing was performed and should be done in a generic manner
739 * Both these functions may be NULL which means the same behavior as returning
740 * zero from them.
741 */
742 struct hid_driver {
743 char *name;
744 const struct hid_device_id *id_table;
745
746 struct list_head dyn_list;
747 spinlock_t dyn_lock;
748
749 bool (*match)(struct hid_device *dev, bool ignore_special_driver);
750 int (*probe)(struct hid_device *dev, const struct hid_device_id *id);
751 void (*remove)(struct hid_device *dev);
752
753 const struct hid_report_id *report_table;
754 int (*raw_event)(struct hid_device *hdev, struct hid_report *report,
755 u8 *data, int size);
756 const struct hid_usage_id *usage_table;
757 int (*event)(struct hid_device *hdev, struct hid_field *field,
758 struct hid_usage *usage, __s32 value);
759 void (*report)(struct hid_device *hdev, struct hid_report *report);
760
761 __u8 *(*report_fixup)(struct hid_device *hdev, __u8 *buf,
762 unsigned int *size);
763
764 int (*input_mapping)(struct hid_device *hdev,
765 struct hid_input *hidinput, struct hid_field *field,
766 struct hid_usage *usage, unsigned long **bit, int *max);
767 int (*input_mapped)(struct hid_device *hdev,
768 struct hid_input *hidinput, struct hid_field *field,
769 struct hid_usage *usage, unsigned long **bit, int *max);
770 int (*input_configured)(struct hid_device *hdev,
771 struct hid_input *hidinput);
772 void (*feature_mapping)(struct hid_device *hdev,
773 struct hid_field *field,
774 struct hid_usage *usage);
775 #ifdef CONFIG_PM
776 int (*suspend)(struct hid_device *hdev, pm_message_t message);
777 int (*resume)(struct hid_device *hdev);
778 int (*reset_resume)(struct hid_device *hdev);
779 #endif
780 /* private: */
781 struct device_driver driver;
782 };
783
784 #define to_hid_driver(pdrv) \
785 container_of(pdrv, struct hid_driver, driver)
786
787 /**
788 * hid_ll_driver - low level driver callbacks
789 * @start: called on probe to start the device
790 * @stop: called on remove
791 * @open: called by input layer on open
792 * @close: called by input layer on close
793 * @power: request underlying hardware to enter requested power mode
794 * @parse: this method is called only once to parse the device data,
795 * shouldn't allocate anything to not leak memory
796 * @request: send report request to device (e.g. feature report)
797 * @wait: wait for buffered io to complete (send/recv reports)
798 * @raw_request: send raw report request to device (e.g. feature report)
799 * @output_report: send output report to device
800 * @idle: send idle request to device
801 */
802 struct hid_ll_driver {
803 int (*start)(struct hid_device *hdev);
804 void (*stop)(struct hid_device *hdev);
805
806 int (*open)(struct hid_device *hdev);
807 void (*close)(struct hid_device *hdev);
808
809 int (*power)(struct hid_device *hdev, int level);
810
811 int (*parse)(struct hid_device *hdev);
812
813 void (*request)(struct hid_device *hdev,
814 struct hid_report *report, int reqtype);
815
816 int (*wait)(struct hid_device *hdev);
817
818 int (*raw_request) (struct hid_device *hdev, unsigned char reportnum,
819 __u8 *buf, size_t len, unsigned char rtype,
820 int reqtype);
821
822 int (*output_report) (struct hid_device *hdev, __u8 *buf, size_t len);
823
824 int (*idle)(struct hid_device *hdev, int report, int idle, int reqtype);
825 };
826
827 extern struct hid_ll_driver i2c_hid_ll_driver;
828 extern struct hid_ll_driver hidp_hid_driver;
829 extern struct hid_ll_driver uhid_hid_driver;
830 extern struct hid_ll_driver usb_hid_driver;
831
hid_is_using_ll_driver(struct hid_device * hdev,struct hid_ll_driver * driver)832 static inline bool hid_is_using_ll_driver(struct hid_device *hdev,
833 struct hid_ll_driver *driver)
834 {
835 return hdev->ll_driver == driver;
836 }
837
hid_is_usb(struct hid_device * hdev)838 static inline bool hid_is_usb(struct hid_device *hdev)
839 {
840 return hid_is_using_ll_driver(hdev, &usb_hid_driver);
841 }
842
843 #define PM_HINT_FULLON 1<<5
844 #define PM_HINT_NORMAL 1<<1
845
846 /* Applications from HID Usage Tables 4/8/99 Version 1.1 */
847 /* We ignore a few input applications that are not widely used */
848 #define IS_INPUT_APPLICATION(a) \
849 (((a >= HID_UP_GENDESK) && (a <= HID_GD_MULTIAXIS)) \
850 || ((a >= HID_DG_PEN) && (a <= HID_DG_WHITEBOARD)) \
851 || (a == HID_GD_SYSTEM_CONTROL) || (a == HID_CP_CONSUMER_CONTROL) \
852 || (a == HID_GD_WIRELESS_RADIO_CTLS))
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 int __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
909 void hid_setup_resolution_multiplier(struct hid_device *hid);
910 int hid_open_report(struct hid_device *device);
911 int hid_check_keys_pressed(struct hid_device *hid);
912 int hid_connect(struct hid_device *hid, unsigned int connect_mask);
913 void hid_disconnect(struct hid_device *hid);
914 bool hid_match_one_id(const struct hid_device *hdev,
915 const struct hid_device_id *id);
916 const struct hid_device_id *hid_match_id(const struct hid_device *hdev,
917 const struct hid_device_id *id);
918 const struct hid_device_id *hid_match_device(struct hid_device *hdev,
919 struct hid_driver *hdrv);
920 bool hid_compare_device_paths(struct hid_device *hdev_a,
921 struct hid_device *hdev_b, char separator);
922 s32 hid_snto32(__u32 value, unsigned n);
923 __u32 hid_field_extract(const struct hid_device *hid, __u8 *report,
924 unsigned offset, unsigned n);
925
926 /**
927 * hid_device_io_start - enable HID input during probe, remove
928 *
929 * @hid - the device
930 *
931 * This should only be called during probe or remove and only be
932 * called by the thread calling probe or remove. It will allow
933 * incoming packets to be delivered to the driver.
934 */
hid_device_io_start(struct hid_device * hid)935 static inline void hid_device_io_start(struct hid_device *hid) {
936 if (hid->io_started) {
937 dev_warn(&hid->dev, "io already started\n");
938 return;
939 }
940 hid->io_started = true;
941 up(&hid->driver_input_lock);
942 }
943
944 /**
945 * hid_device_io_stop - disable HID input during probe, remove
946 *
947 * @hid - the device
948 *
949 * Should only be called after hid_device_io_start. It will prevent
950 * incoming packets from going to the driver for the duration of
951 * probe, remove. If called during probe, packets will still go to the
952 * driver after probe is complete. This function should only be called
953 * by the thread calling probe or remove.
954 */
hid_device_io_stop(struct hid_device * hid)955 static inline void hid_device_io_stop(struct hid_device *hid) {
956 if (!hid->io_started) {
957 dev_warn(&hid->dev, "io already stopped\n");
958 return;
959 }
960 hid->io_started = false;
961 down(&hid->driver_input_lock);
962 }
963
964 /**
965 * hid_map_usage - map usage input bits
966 *
967 * @hidinput: hidinput which we are interested in
968 * @usage: usage to fill in
969 * @bit: pointer to input->{}bit (out parameter)
970 * @max: maximal valid usage->code to consider later (out parameter)
971 * @type: input event type (EV_KEY, EV_REL, ...)
972 * @c: code which corresponds to this usage and type
973 *
974 * The value pointed to by @bit will be set to NULL if either @type is
975 * an unhandled event type, or if @c is out of range for @type. This
976 * can be used as an error condition.
977 */
hid_map_usage(struct hid_input * hidinput,struct hid_usage * usage,unsigned long ** bit,int * max,__u8 type,unsigned int c)978 static inline void hid_map_usage(struct hid_input *hidinput,
979 struct hid_usage *usage, unsigned long **bit, int *max,
980 __u8 type, unsigned int c)
981 {
982 struct input_dev *input = hidinput->input;
983 unsigned long *bmap = NULL;
984 unsigned int limit = 0;
985
986 switch (type) {
987 case EV_ABS:
988 bmap = input->absbit;
989 limit = ABS_MAX;
990 break;
991 case EV_REL:
992 bmap = input->relbit;
993 limit = REL_MAX;
994 break;
995 case EV_KEY:
996 bmap = input->keybit;
997 limit = KEY_MAX;
998 break;
999 case EV_LED:
1000 bmap = input->ledbit;
1001 limit = LED_MAX;
1002 break;
1003 }
1004
1005 if (unlikely(c > limit || !bmap)) {
1006 pr_warn_ratelimited("%s: Invalid code %d type %d\n",
1007 input->name, c, type);
1008 *bit = NULL;
1009 return;
1010 }
1011
1012 usage->type = type;
1013 usage->code = c;
1014 *max = limit;
1015 *bit = bmap;
1016 }
1017
1018 /**
1019 * hid_map_usage_clear - map usage input bits and clear the input bit
1020 *
1021 * The same as hid_map_usage, except the @c bit is also cleared in supported
1022 * bits (@bit).
1023 */
hid_map_usage_clear(struct hid_input * hidinput,struct hid_usage * usage,unsigned long ** bit,int * max,__u8 type,__u16 c)1024 static inline void hid_map_usage_clear(struct hid_input *hidinput,
1025 struct hid_usage *usage, unsigned long **bit, int *max,
1026 __u8 type, __u16 c)
1027 {
1028 hid_map_usage(hidinput, usage, bit, max, type, c);
1029 if (*bit)
1030 clear_bit(usage->code, *bit);
1031 }
1032
1033 /**
1034 * hid_parse - parse HW reports
1035 *
1036 * @hdev: hid device
1037 *
1038 * Call this from probe after you set up the device (if needed). Your
1039 * report_fixup will be called (if non-NULL) after reading raw report from
1040 * device before passing it to hid layer for real parsing.
1041 */
hid_parse(struct hid_device * hdev)1042 static inline int __must_check hid_parse(struct hid_device *hdev)
1043 {
1044 return hid_open_report(hdev);
1045 }
1046
1047 int __must_check hid_hw_start(struct hid_device *hdev,
1048 unsigned int connect_mask);
1049 void hid_hw_stop(struct hid_device *hdev);
1050 int __must_check hid_hw_open(struct hid_device *hdev);
1051 void hid_hw_close(struct hid_device *hdev);
1052
1053 /**
1054 * hid_hw_power - requests underlying HW to go into given power mode
1055 *
1056 * @hdev: hid device
1057 * @level: requested power level (one of %PM_HINT_* defines)
1058 *
1059 * This function requests underlying hardware to enter requested power
1060 * mode.
1061 */
1062
hid_hw_power(struct hid_device * hdev,int level)1063 static inline int hid_hw_power(struct hid_device *hdev, int level)
1064 {
1065 return hdev->ll_driver->power ? hdev->ll_driver->power(hdev, level) : 0;
1066 }
1067
1068
1069 /**
1070 * hid_hw_request - send report request to device
1071 *
1072 * @hdev: hid device
1073 * @report: report to send
1074 * @reqtype: hid request type
1075 */
hid_hw_request(struct hid_device * hdev,struct hid_report * report,int reqtype)1076 static inline void hid_hw_request(struct hid_device *hdev,
1077 struct hid_report *report, int reqtype)
1078 {
1079 if (hdev->ll_driver->request)
1080 return hdev->ll_driver->request(hdev, report, reqtype);
1081
1082 __hid_request(hdev, report, reqtype);
1083 }
1084
1085 /**
1086 * hid_hw_raw_request - send report request to device
1087 *
1088 * @hdev: hid device
1089 * @reportnum: report ID
1090 * @buf: in/out data to transfer
1091 * @len: length of buf
1092 * @rtype: HID report type
1093 * @reqtype: HID_REQ_GET_REPORT or HID_REQ_SET_REPORT
1094 *
1095 * @return: count of data transfered, negative if error
1096 *
1097 * Same behavior as hid_hw_request, but with raw buffers instead.
1098 */
hid_hw_raw_request(struct hid_device * hdev,unsigned char reportnum,__u8 * buf,size_t len,unsigned char rtype,int reqtype)1099 static inline int hid_hw_raw_request(struct hid_device *hdev,
1100 unsigned char reportnum, __u8 *buf,
1101 size_t len, unsigned char rtype, int reqtype)
1102 {
1103 if (len < 1 || len > HID_MAX_BUFFER_SIZE || !buf)
1104 return -EINVAL;
1105
1106 return hdev->ll_driver->raw_request(hdev, reportnum, buf, len,
1107 rtype, reqtype);
1108 }
1109
1110 /**
1111 * hid_hw_output_report - send output report to device
1112 *
1113 * @hdev: hid device
1114 * @buf: raw data to transfer
1115 * @len: length of buf
1116 *
1117 * @return: count of data transfered, negative if error
1118 */
hid_hw_output_report(struct hid_device * hdev,__u8 * buf,size_t len)1119 static inline int hid_hw_output_report(struct hid_device *hdev, __u8 *buf,
1120 size_t len)
1121 {
1122 if (len < 1 || len > HID_MAX_BUFFER_SIZE || !buf)
1123 return -EINVAL;
1124
1125 if (hdev->ll_driver->output_report)
1126 return hdev->ll_driver->output_report(hdev, buf, len);
1127
1128 return -ENOSYS;
1129 }
1130
1131 /**
1132 * hid_hw_idle - send idle request to device
1133 *
1134 * @hdev: hid device
1135 * @report: report to control
1136 * @idle: idle state
1137 * @reqtype: hid request type
1138 */
hid_hw_idle(struct hid_device * hdev,int report,int idle,int reqtype)1139 static inline int hid_hw_idle(struct hid_device *hdev, int report, int idle,
1140 int reqtype)
1141 {
1142 if (hdev->ll_driver->idle)
1143 return hdev->ll_driver->idle(hdev, report, idle, reqtype);
1144
1145 return 0;
1146 }
1147
1148 /**
1149 * hid_hw_wait - wait for buffered io to complete
1150 *
1151 * @hdev: hid device
1152 */
hid_hw_wait(struct hid_device * hdev)1153 static inline void hid_hw_wait(struct hid_device *hdev)
1154 {
1155 if (hdev->ll_driver->wait)
1156 hdev->ll_driver->wait(hdev);
1157 }
1158
1159 /**
1160 * hid_report_len - calculate the report length
1161 *
1162 * @report: the report we want to know the length
1163 */
hid_report_len(struct hid_report * report)1164 static inline u32 hid_report_len(struct hid_report *report)
1165 {
1166 return DIV_ROUND_UP(report->size, 8) + (report->id > 0);
1167 }
1168
1169 int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, u32 size,
1170 int interrupt);
1171
1172 /* HID quirks API */
1173 unsigned long hid_lookup_quirk(const struct hid_device *hdev);
1174 int hid_quirks_init(char **quirks_param, __u16 bus, int count);
1175 void hid_quirks_exit(__u16 bus);
1176
1177 #ifdef CONFIG_HID_PID
1178 int hid_pidff_init(struct hid_device *hid);
1179 #else
1180 #define hid_pidff_init NULL
1181 #endif
1182
1183 #define dbg_hid(fmt, ...) \
1184 do { \
1185 if (hid_debug) \
1186 printk(KERN_DEBUG "%s: " fmt, __FILE__, ##__VA_ARGS__); \
1187 } while (0)
1188
1189 #define hid_err(hid, fmt, ...) \
1190 dev_err(&(hid)->dev, fmt, ##__VA_ARGS__)
1191 #define hid_notice(hid, fmt, ...) \
1192 dev_notice(&(hid)->dev, fmt, ##__VA_ARGS__)
1193 #define hid_warn(hid, fmt, ...) \
1194 dev_warn(&(hid)->dev, fmt, ##__VA_ARGS__)
1195 #define hid_info(hid, fmt, ...) \
1196 dev_info(&(hid)->dev, fmt, ##__VA_ARGS__)
1197 #define hid_dbg(hid, fmt, ...) \
1198 dev_dbg(&(hid)->dev, fmt, ##__VA_ARGS__)
1199
1200 #define hid_err_once(hid, fmt, ...) \
1201 dev_err_once(&(hid)->dev, fmt, ##__VA_ARGS__)
1202 #define hid_notice_once(hid, fmt, ...) \
1203 dev_notice_once(&(hid)->dev, fmt, ##__VA_ARGS__)
1204 #define hid_warn_once(hid, fmt, ...) \
1205 dev_warn_once(&(hid)->dev, fmt, ##__VA_ARGS__)
1206 #define hid_info_once(hid, fmt, ...) \
1207 dev_info_once(&(hid)->dev, fmt, ##__VA_ARGS__)
1208 #define hid_dbg_once(hid, fmt, ...) \
1209 dev_dbg_once(&(hid)->dev, fmt, ##__VA_ARGS__)
1210
1211 #endif
1212