Commit | Line | Data |
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1da177e4 | 1 | /* |
1da177e4 LT |
2 | * Copyright (c) 1999 Andreas Gal |
3 | * Copyright (c) 2000-2001 Vojtech Pavlik | |
b55fd23c | 4 | * Copyright (c) 2006-2007 Jiri Kosina |
1da177e4 | 5 | */ |
1da177e4 LT |
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 | */ | |
607ca46e DH |
25 | #ifndef __HID_H |
26 | #define __HID_H | |
1da177e4 | 27 | |
57d292bd JK |
28 | |
29 | #include <linux/types.h> | |
30 | #include <linux/slab.h> | |
31 | #include <linux/list.h> | |
e8c84f9a | 32 | #include <linux/mod_devicetable.h> /* hid_device_id */ |
57d292bd JK |
33 | #include <linux/timer.h> |
34 | #include <linux/workqueue.h> | |
35 | #include <linux/input.h> | |
4ea54542 | 36 | #include <linux/semaphore.h> |
4f5ca836 | 37 | #include <linux/power_supply.h> |
607ca46e | 38 | #include <uapi/linux/hid.h> |
57d292bd | 39 | |
1da177e4 LT |
40 | /* |
41 | * We parse each description item into this structure. Short items data | |
42 | * values are expanded to 32-bit signed int, long items contain a pointer | |
43 | * into the data area. | |
44 | */ | |
45 | ||
46 | struct hid_item { | |
47 | unsigned format; | |
48 | __u8 size; | |
49 | __u8 type; | |
50 | __u8 tag; | |
51 | union { | |
52 | __u8 u8; | |
53 | __s8 s8; | |
54 | __u16 u16; | |
55 | __s16 s16; | |
56 | __u32 u32; | |
57 | __s32 s32; | |
58 | __u8 *longdata; | |
59 | } data; | |
60 | }; | |
61 | ||
62 | /* | |
63 | * HID report item format | |
64 | */ | |
65 | ||
66 | #define HID_ITEM_FORMAT_SHORT 0 | |
67 | #define HID_ITEM_FORMAT_LONG 1 | |
68 | ||
69 | /* | |
70 | * Special tag indicating long items | |
71 | */ | |
72 | ||
73 | #define HID_ITEM_TAG_LONG 15 | |
74 | ||
75 | /* | |
76 | * HID report descriptor item type (prefix bit 2,3) | |
77 | */ | |
78 | ||
79 | #define HID_ITEM_TYPE_MAIN 0 | |
80 | #define HID_ITEM_TYPE_GLOBAL 1 | |
81 | #define HID_ITEM_TYPE_LOCAL 2 | |
82 | #define HID_ITEM_TYPE_RESERVED 3 | |
83 | ||
84 | /* | |
85 | * HID report descriptor main item tags | |
86 | */ | |
87 | ||
88 | #define HID_MAIN_ITEM_TAG_INPUT 8 | |
89 | #define HID_MAIN_ITEM_TAG_OUTPUT 9 | |
90 | #define HID_MAIN_ITEM_TAG_FEATURE 11 | |
91 | #define HID_MAIN_ITEM_TAG_BEGIN_COLLECTION 10 | |
92 | #define HID_MAIN_ITEM_TAG_END_COLLECTION 12 | |
93 | ||
94 | /* | |
95 | * HID report descriptor main item contents | |
96 | */ | |
97 | ||
98 | #define HID_MAIN_ITEM_CONSTANT 0x001 | |
99 | #define HID_MAIN_ITEM_VARIABLE 0x002 | |
100 | #define HID_MAIN_ITEM_RELATIVE 0x004 | |
05f091ab | 101 | #define HID_MAIN_ITEM_WRAP 0x008 |
1da177e4 LT |
102 | #define HID_MAIN_ITEM_NONLINEAR 0x010 |
103 | #define HID_MAIN_ITEM_NO_PREFERRED 0x020 | |
104 | #define HID_MAIN_ITEM_NULL_STATE 0x040 | |
105 | #define HID_MAIN_ITEM_VOLATILE 0x080 | |
106 | #define HID_MAIN_ITEM_BUFFERED_BYTE 0x100 | |
107 | ||
108 | /* | |
109 | * HID report descriptor collection item types | |
110 | */ | |
111 | ||
112 | #define HID_COLLECTION_PHYSICAL 0 | |
113 | #define HID_COLLECTION_APPLICATION 1 | |
114 | #define HID_COLLECTION_LOGICAL 2 | |
115 | ||
116 | /* | |
117 | * HID report descriptor global item tags | |
118 | */ | |
119 | ||
120 | #define HID_GLOBAL_ITEM_TAG_USAGE_PAGE 0 | |
121 | #define HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM 1 | |
122 | #define HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM 2 | |
123 | #define HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM 3 | |
124 | #define HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM 4 | |
125 | #define HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT 5 | |
126 | #define HID_GLOBAL_ITEM_TAG_UNIT 6 | |
127 | #define HID_GLOBAL_ITEM_TAG_REPORT_SIZE 7 | |
128 | #define HID_GLOBAL_ITEM_TAG_REPORT_ID 8 | |
129 | #define HID_GLOBAL_ITEM_TAG_REPORT_COUNT 9 | |
130 | #define HID_GLOBAL_ITEM_TAG_PUSH 10 | |
131 | #define HID_GLOBAL_ITEM_TAG_POP 11 | |
132 | ||
133 | /* | |
134 | * HID report descriptor local item tags | |
135 | */ | |
136 | ||
137 | #define HID_LOCAL_ITEM_TAG_USAGE 0 | |
138 | #define HID_LOCAL_ITEM_TAG_USAGE_MINIMUM 1 | |
139 | #define HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM 2 | |
140 | #define HID_LOCAL_ITEM_TAG_DESIGNATOR_INDEX 3 | |
141 | #define HID_LOCAL_ITEM_TAG_DESIGNATOR_MINIMUM 4 | |
142 | #define HID_LOCAL_ITEM_TAG_DESIGNATOR_MAXIMUM 5 | |
143 | #define HID_LOCAL_ITEM_TAG_STRING_INDEX 7 | |
144 | #define HID_LOCAL_ITEM_TAG_STRING_MINIMUM 8 | |
145 | #define HID_LOCAL_ITEM_TAG_STRING_MAXIMUM 9 | |
146 | #define HID_LOCAL_ITEM_TAG_DELIMITER 10 | |
147 | ||
148 | /* | |
149 | * HID usage tables | |
150 | */ | |
151 | ||
152 | #define HID_USAGE_PAGE 0xffff0000 | |
153 | ||
154 | #define HID_UP_UNDEFINED 0x00000000 | |
05f091ab | 155 | #define HID_UP_GENDESK 0x00010000 |
0aebfdac | 156 | #define HID_UP_SIMULATION 0x00020000 |
4f5ca836 | 157 | #define HID_UP_GENDEVCTRLS 0x00060000 |
05f091ab DT |
158 | #define HID_UP_KEYBOARD 0x00070000 |
159 | #define HID_UP_LED 0x00080000 | |
160 | #define HID_UP_BUTTON 0x00090000 | |
161 | #define HID_UP_ORDINAL 0x000a0000 | |
f3dddf24 | 162 | #define HID_UP_TELEPHONY 0x000b0000 |
1da177e4 | 163 | #define HID_UP_CONSUMER 0x000c0000 |
05f091ab DT |
164 | #define HID_UP_DIGITIZER 0x000d0000 |
165 | #define HID_UP_PID 0x000f0000 | |
1da177e4 | 166 | #define HID_UP_HPVENDOR 0xff7f0000 |
929578ab | 167 | #define HID_UP_HPVENDOR2 0xff010000 |
1da177e4 | 168 | #define HID_UP_MSVENDOR 0xff000000 |
e875ce37 SP |
169 | #define HID_UP_CUSTOM 0x00ff0000 |
170 | #define HID_UP_LOGIVENDOR 0xffbc0000 | |
b466c1dd SW |
171 | #define HID_UP_LOGIVENDOR2 0xff090000 |
172 | #define HID_UP_LOGIVENDOR3 0xff430000 | |
f3d4ff0e | 173 | #define HID_UP_LNVENDOR 0xffa00000 |
83499b52 | 174 | #define HID_UP_SENSOR 0x00200000 |
1da177e4 LT |
175 | |
176 | #define HID_USAGE 0x0000ffff | |
177 | ||
178 | #define HID_GD_POINTER 0x00010001 | |
179 | #define HID_GD_MOUSE 0x00010002 | |
180 | #define HID_GD_JOYSTICK 0x00010004 | |
181 | #define HID_GD_GAMEPAD 0x00010005 | |
182 | #define HID_GD_KEYBOARD 0x00010006 | |
183 | #define HID_GD_KEYPAD 0x00010007 | |
184 | #define HID_GD_MULTIAXIS 0x00010008 | |
185 | #define HID_GD_X 0x00010030 | |
186 | #define HID_GD_Y 0x00010031 | |
187 | #define HID_GD_Z 0x00010032 | |
188 | #define HID_GD_RX 0x00010033 | |
189 | #define HID_GD_RY 0x00010034 | |
190 | #define HID_GD_RZ 0x00010035 | |
191 | #define HID_GD_SLIDER 0x00010036 | |
192 | #define HID_GD_DIAL 0x00010037 | |
193 | #define HID_GD_WHEEL 0x00010038 | |
194 | #define HID_GD_HATSWITCH 0x00010039 | |
195 | #define HID_GD_BUFFER 0x0001003a | |
196 | #define HID_GD_BYTECOUNT 0x0001003b | |
197 | #define HID_GD_MOTION 0x0001003c | |
198 | #define HID_GD_START 0x0001003d | |
199 | #define HID_GD_SELECT 0x0001003e | |
200 | #define HID_GD_VX 0x00010040 | |
201 | #define HID_GD_VY 0x00010041 | |
202 | #define HID_GD_VZ 0x00010042 | |
203 | #define HID_GD_VBRX 0x00010043 | |
204 | #define HID_GD_VBRY 0x00010044 | |
205 | #define HID_GD_VBRZ 0x00010045 | |
206 | #define HID_GD_VNO 0x00010046 | |
207 | #define HID_GD_FEATURE 0x00010047 | |
6aef704e | 208 | #define HID_GD_SYSTEM_CONTROL 0x00010080 |
1da177e4 LT |
209 | #define HID_GD_UP 0x00010090 |
210 | #define HID_GD_DOWN 0x00010091 | |
211 | #define HID_GD_RIGHT 0x00010092 | |
212 | #define HID_GD_LEFT 0x00010093 | |
213 | ||
4f5ca836 JF |
214 | #define HID_DC_BATTERYSTRENGTH 0x00060020 |
215 | ||
6aef704e BT |
216 | #define HID_CP_CONSUMER_CONTROL 0x000c0001 |
217 | ||
89f536cc SC |
218 | #define HID_DG_DIGITIZER 0x000d0001 |
219 | #define HID_DG_PEN 0x000d0002 | |
220 | #define HID_DG_LIGHTPEN 0x000d0003 | |
221 | #define HID_DG_TOUCHSCREEN 0x000d0004 | |
222 | #define HID_DG_TOUCHPAD 0x000d0005 | |
223 | #define HID_DG_STYLUS 0x000d0020 | |
224 | #define HID_DG_PUCK 0x000d0021 | |
225 | #define HID_DG_FINGER 0x000d0022 | |
226 | #define HID_DG_TIPPRESSURE 0x000d0030 | |
227 | #define HID_DG_BARRELPRESSURE 0x000d0031 | |
228 | #define HID_DG_INRANGE 0x000d0032 | |
229 | #define HID_DG_TOUCH 0x000d0033 | |
230 | #define HID_DG_UNTOUCH 0x000d0034 | |
231 | #define HID_DG_TAP 0x000d0035 | |
232 | #define HID_DG_TABLETFUNCTIONKEY 0x000d0039 | |
233 | #define HID_DG_PROGRAMCHANGEKEY 0x000d003a | |
234 | #define HID_DG_INVERT 0x000d003c | |
235 | #define HID_DG_TIPSWITCH 0x000d0042 | |
236 | #define HID_DG_TIPSWITCH2 0x000d0043 | |
237 | #define HID_DG_BARRELSWITCH 0x000d0044 | |
238 | #define HID_DG_ERASER 0x000d0045 | |
239 | #define HID_DG_TABLETPICK 0x000d0046 | |
1a3f83f6 JC |
240 | |
241 | #define HID_CP_CONSUMERCONTROL 0x000c0001 | |
a45c30ec JC |
242 | #define HID_CP_NUMERICKEYPAD 0x000c0002 |
243 | #define HID_CP_PROGRAMMABLEBUTTONS 0x000c0003 | |
244 | #define HID_CP_MICROPHONE 0x000c0004 | |
245 | #define HID_CP_HEADPHONE 0x000c0005 | |
246 | #define HID_CP_GRAPHICEQUALIZER 0x000c0006 | |
247 | #define HID_CP_FUNCTIONBUTTONS 0x000c0036 | |
248 | #define HID_CP_SELECTION 0x000c0080 | |
249 | #define HID_CP_MEDIASELECTION 0x000c0087 | |
250 | #define HID_CP_SELECTDISC 0x000c00ba | |
251 | #define HID_CP_PLAYBACKSPEED 0x000c00f1 | |
252 | #define HID_CP_PROXIMITY 0x000c0109 | |
253 | #define HID_CP_SPEAKERSYSTEM 0x000c0160 | |
254 | #define HID_CP_CHANNELLEFT 0x000c0161 | |
255 | #define HID_CP_CHANNELRIGHT 0x000c0162 | |
256 | #define HID_CP_CHANNELCENTER 0x000c0163 | |
257 | #define HID_CP_CHANNELFRONT 0x000c0164 | |
258 | #define HID_CP_CHANNELCENTERFRONT 0x000c0165 | |
259 | #define HID_CP_CHANNELSIDE 0x000c0166 | |
260 | #define HID_CP_CHANNELSURROUND 0x000c0167 | |
261 | #define HID_CP_CHANNELLOWFREQUENCYENHANCEMENT 0x000c0168 | |
262 | #define HID_CP_CHANNELTOP 0x000c0169 | |
263 | #define HID_CP_CHANNELUNKNOWN 0x000c016a | |
264 | #define HID_CP_APPLICATIONLAUNCHBUTTONS 0x000c0180 | |
265 | #define HID_CP_GENERICGUIAPPLICATIONCONTROLS 0x000c0200 | |
1a3f83f6 | 266 | |
89f536cc SC |
267 | #define HID_DG_CONFIDENCE 0x000d0047 |
268 | #define HID_DG_WIDTH 0x000d0048 | |
269 | #define HID_DG_HEIGHT 0x000d0049 | |
270 | #define HID_DG_CONTACTID 0x000d0051 | |
271 | #define HID_DG_INPUTMODE 0x000d0052 | |
272 | #define HID_DG_DEVICEINDEX 0x000d0053 | |
273 | #define HID_DG_CONTACTCOUNT 0x000d0054 | |
274 | #define HID_DG_CONTACTMAX 0x000d0055 | |
2c6e0277 | 275 | #define HID_DG_BUTTONTYPE 0x000d0059 |
368c9664 PC |
276 | #define HID_DG_BARRELSWITCH2 0x000d005a |
277 | #define HID_DG_TOOLSERIALNUMBER 0x000d005b | |
89f536cc | 278 | |
1da177e4 LT |
279 | /* |
280 | * HID report types --- Ouch! HID spec says 1 2 3! | |
281 | */ | |
282 | ||
283 | #define HID_INPUT_REPORT 0 | |
284 | #define HID_OUTPUT_REPORT 1 | |
285 | #define HID_FEATURE_REPORT 2 | |
286 | ||
39054a5a DH |
287 | #define HID_REPORT_TYPES 3 |
288 | ||
93c10132 JS |
289 | /* |
290 | * HID connect requests | |
291 | */ | |
292 | ||
293 | #define HID_CONNECT_HIDINPUT 0x01 | |
294 | #define HID_CONNECT_HIDINPUT_FORCE 0x02 | |
295 | #define HID_CONNECT_HIDRAW 0x04 | |
296 | #define HID_CONNECT_HIDDEV 0x08 | |
297 | #define HID_CONNECT_HIDDEV_FORCE 0x10 | |
298 | #define HID_CONNECT_FF 0x20 | |
7704ac93 | 299 | #define HID_CONNECT_DRIVER 0x40 |
93c10132 JS |
300 | #define HID_CONNECT_DEFAULT (HID_CONNECT_HIDINPUT|HID_CONNECT_HIDRAW| \ |
301 | HID_CONNECT_HIDDEV|HID_CONNECT_FF) | |
302 | ||
1da177e4 LT |
303 | /* |
304 | * HID device quirks. | |
305 | */ | |
306 | ||
876b9276 PW |
307 | /* |
308 | * Increase this if you need to configure more HID quirks at module load time | |
309 | */ | |
310 | #define MAX_USBHID_BOOT_QUIRKS 4 | |
311 | ||
eab9edd2 MH |
312 | #define HID_QUIRK_INVERT 0x00000001 |
313 | #define HID_QUIRK_NOTOUCH 0x00000002 | |
6f4303fb | 314 | #define HID_QUIRK_IGNORE 0x00000004 |
eab9edd2 | 315 | #define HID_QUIRK_NOGET 0x00000008 |
b5e5a37e | 316 | #define HID_QUIRK_HIDDEV_FORCE 0x00000010 |
eab9edd2 MH |
317 | #define HID_QUIRK_BADPAD 0x00000020 |
318 | #define HID_QUIRK_MULTI_INPUT 0x00000040 | |
3a343ee4 | 319 | #define HID_QUIRK_HIDINPUT_FORCE 0x00000080 |
4f22decf | 320 | #define HID_QUIRK_NO_EMPTY_INPUT 0x00000100 |
595e9276 | 321 | #define HID_QUIRK_NO_INIT_INPUT_REPORTS 0x00000200 |
0b750b3b | 322 | #define HID_QUIRK_ALWAYS_POLL 0x00000400 |
ea9a4a8b | 323 | #define HID_QUIRK_SKIP_OUTPUT_REPORTS 0x00010000 |
e534a935 BT |
324 | #define HID_QUIRK_SKIP_OUTPUT_REPORT_ID 0x00020000 |
325 | #define HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP 0x00040000 | |
f345c37c | 326 | #define HID_QUIRK_FULLSPEED_INTERVAL 0x10000000 |
5b915d9e | 327 | #define HID_QUIRK_NO_INIT_REPORTS 0x20000000 |
b5e5a37e | 328 | #define HID_QUIRK_NO_IGNORE 0x40000000 |
24750f3e | 329 | #define HID_QUIRK_NO_INPUT_SYNC 0x80000000 |
ea9a4a8b | 330 | |
734c6609 HR |
331 | /* |
332 | * HID device groups | |
ba391e5a BT |
333 | * |
334 | * Note: HID_GROUP_ANY is declared in linux/mod_devicetable.h | |
335 | * and has a value of 0x0000 | |
734c6609 HR |
336 | */ |
337 | #define HID_GROUP_GENERIC 0x0001 | |
4fa3a583 | 338 | #define HID_GROUP_MULTITOUCH 0x0002 |
83499b52 | 339 | #define HID_GROUP_SENSOR_HUB 0x0003 |
f961bd35 | 340 | #define HID_GROUP_MULTITOUCH_WIN_8 0x0004 |
734c6609 | 341 | |
ba391e5a BT |
342 | /* |
343 | * Vendor specific HID device groups | |
344 | */ | |
345 | #define HID_GROUP_RMI 0x0100 | |
29b47391 | 346 | #define HID_GROUP_WACOM 0x0101 |
d610274b | 347 | #define HID_GROUP_LOGITECH_DJ_DEVICE 0x0102 |
29b47391 | 348 | |
1da177e4 LT |
349 | /* |
350 | * This is the global environment of the parser. This information is | |
351 | * persistent for main-items. The global environment can be saved and | |
352 | * restored with PUSH/POP statements. | |
353 | */ | |
354 | ||
355 | struct hid_global { | |
356 | unsigned usage_page; | |
357 | __s32 logical_minimum; | |
358 | __s32 logical_maximum; | |
359 | __s32 physical_minimum; | |
360 | __s32 physical_maximum; | |
361 | __s32 unit_exponent; | |
362 | unsigned unit; | |
363 | unsigned report_id; | |
364 | unsigned report_size; | |
365 | unsigned report_count; | |
366 | }; | |
367 | ||
368 | /* | |
369 | * This is the local environment. It is persistent up the next main-item. | |
370 | */ | |
371 | ||
5f1ab74f | 372 | #define HID_MAX_USAGES 12288 |
1da177e4 LT |
373 | #define HID_DEFAULT_NUM_COLLECTIONS 16 |
374 | ||
375 | struct hid_local { | |
376 | unsigned usage[HID_MAX_USAGES]; /* usage array */ | |
377 | unsigned collection_index[HID_MAX_USAGES]; /* collection index array */ | |
378 | unsigned usage_index; | |
379 | unsigned usage_minimum; | |
380 | unsigned delimiter_depth; | |
381 | unsigned delimiter_branch; | |
382 | }; | |
383 | ||
384 | /* | |
385 | * This is the collection stack. We climb up the stack to determine | |
386 | * application and function of each field. | |
387 | */ | |
388 | ||
389 | struct hid_collection { | |
390 | unsigned type; | |
391 | unsigned usage; | |
392 | unsigned level; | |
393 | }; | |
394 | ||
395 | struct hid_usage { | |
396 | unsigned hid; /* hid usage code */ | |
397 | unsigned collection_index; /* index into collection array */ | |
f262d1fa | 398 | unsigned usage_index; /* index into usage array */ |
1da177e4 LT |
399 | /* hidinput data */ |
400 | __u16 code; /* input driver code */ | |
401 | __u8 type; /* input driver type */ | |
402 | __s8 hat_min; /* hat switch fun */ | |
403 | __s8 hat_max; /* ditto */ | |
404 | __s8 hat_dir; /* ditto */ | |
405 | }; | |
406 | ||
407 | struct hid_input; | |
408 | ||
409 | struct hid_field { | |
410 | unsigned physical; /* physical usage for this field */ | |
411 | unsigned logical; /* logical usage for this field */ | |
412 | unsigned application; /* application usage for this field */ | |
413 | struct hid_usage *usage; /* usage table for this function */ | |
414 | unsigned maxusage; /* maximum usage index */ | |
415 | unsigned flags; /* main-item flags (i.e. volatile,array,constant) */ | |
416 | unsigned report_offset; /* bit offset in the report */ | |
417 | unsigned report_size; /* size of this field in the report */ | |
418 | unsigned report_count; /* number of this field in the report */ | |
419 | unsigned report_type; /* (input,output,feature) */ | |
420 | __s32 *value; /* last known value(s) */ | |
421 | __s32 logical_minimum; | |
422 | __s32 logical_maximum; | |
423 | __s32 physical_minimum; | |
424 | __s32 physical_maximum; | |
425 | __s32 unit_exponent; | |
426 | unsigned unit; | |
427 | struct hid_report *report; /* associated report */ | |
428 | unsigned index; /* index into report->field[] */ | |
429 | /* hidinput data */ | |
430 | struct hid_input *hidinput; /* associated input structure */ | |
431 | __u16 dpad; /* dpad input code */ | |
432 | }; | |
433 | ||
7e55bded | 434 | #define HID_MAX_FIELDS 256 |
1da177e4 LT |
435 | |
436 | struct hid_report { | |
437 | struct list_head list; | |
438 | unsigned id; /* id of this report */ | |
439 | unsigned type; /* report type */ | |
440 | struct hid_field *field[HID_MAX_FIELDS]; /* fields of the report */ | |
441 | unsigned maxfield; /* maximum valid field index */ | |
442 | unsigned size; /* size of the report (bits) */ | |
443 | struct hid_device *device; /* associated device */ | |
444 | }; | |
445 | ||
43622021 KC |
446 | #define HID_MAX_IDS 256 |
447 | ||
1da177e4 LT |
448 | struct hid_report_enum { |
449 | unsigned numbered; | |
450 | struct list_head report_list; | |
43622021 | 451 | struct hid_report *report_id_hash[HID_MAX_IDS]; |
1da177e4 LT |
452 | }; |
453 | ||
bf0964dc MH |
454 | #define HID_MIN_BUFFER_SIZE 64 /* make sure there is at least a packet size of space */ |
455 | #define HID_MAX_BUFFER_SIZE 4096 /* 4kb */ | |
1da177e4 LT |
456 | #define HID_CONTROL_FIFO_SIZE 256 /* to init devices with >100 reports */ |
457 | #define HID_OUTPUT_FIFO_SIZE 64 | |
458 | ||
459 | struct hid_control_fifo { | |
460 | unsigned char dir; | |
461 | struct hid_report *report; | |
f129ea6d AH |
462 | char *raw_report; |
463 | }; | |
464 | ||
465 | struct hid_output_fifo { | |
466 | struct hid_report *report; | |
467 | char *raw_report; | |
1da177e4 LT |
468 | }; |
469 | ||
470 | #define HID_CLAIMED_INPUT 1 | |
471 | #define HID_CLAIMED_HIDDEV 2 | |
86166b7b | 472 | #define HID_CLAIMED_HIDRAW 4 |
7704ac93 | 473 | #define HID_CLAIMED_DRIVER 8 |
1da177e4 | 474 | |
85cdaf52 | 475 | #define HID_STAT_ADDED 1 |
c500c971 | 476 | #define HID_STAT_PARSED 2 |
85cdaf52 | 477 | |
1da177e4 LT |
478 | struct hid_input { |
479 | struct list_head list; | |
480 | struct hid_report *report; | |
c5b7c7c3 | 481 | struct input_dev *input; |
1da177e4 LT |
482 | }; |
483 | ||
a73a6370 JS |
484 | enum hid_type { |
485 | HID_TYPE_OTHER = 0, | |
6dc1418e TS |
486 | HID_TYPE_USBMOUSE, |
487 | HID_TYPE_USBNONE | |
a73a6370 JS |
488 | }; |
489 | ||
85cdaf52 | 490 | struct hid_driver; |
c500c971 | 491 | struct hid_ll_driver; |
85cdaf52 | 492 | |
1da177e4 | 493 | struct hid_device { /* device report descriptor */ |
a7197c2e HR |
494 | __u8 *dev_rdesc; |
495 | unsigned dev_rsize; | |
85cdaf52 | 496 | __u8 *rdesc; |
1da177e4 LT |
497 | unsigned rsize; |
498 | struct hid_collection *collection; /* List of HID collections */ | |
499 | unsigned collection_size; /* Number of allocated hid_collections */ | |
500 | unsigned maxcollection; /* Number of parsed collections */ | |
501 | unsigned maxapplication; /* Number of applications */ | |
85cdaf52 | 502 | __u16 bus; /* BUS ID */ |
4d53b801 | 503 | __u16 group; /* Report group */ |
85cdaf52 JS |
504 | __u32 vendor; /* Vendor ID */ |
505 | __u32 product; /* Product ID */ | |
506 | __u32 version; /* HID version */ | |
a73a6370 | 507 | enum hid_type type; /* device type (mouse, kbd, ...) */ |
1da177e4 LT |
508 | unsigned country; /* HID country */ |
509 | struct hid_report_enum report_enum[HID_REPORT_TYPES]; | |
50c9d75b | 510 | struct work_struct led_work; /* delayed LED worker */ |
1da177e4 | 511 | |
c849a614 AR |
512 | struct semaphore driver_lock; /* protects the current driver, except during input */ |
513 | struct semaphore driver_input_lock; /* protects the current driver */ | |
85cdaf52 JS |
514 | struct device dev; /* device */ |
515 | struct hid_driver *driver; | |
c500c971 | 516 | struct hid_ll_driver *ll_driver; |
1da177e4 | 517 | |
4f5ca836 JF |
518 | #ifdef CONFIG_HID_BATTERY_STRENGTH |
519 | /* | |
520 | * Power supply information for HID devices which report | |
297d716f KK |
521 | * battery strength. power_supply was successfully registered if |
522 | * battery is non-NULL. | |
4f5ca836 | 523 | */ |
297d716f | 524 | struct power_supply *battery; |
4f5ca836 JF |
525 | __s32 battery_min; |
526 | __s32 battery_max; | |
fb8ac91b | 527 | __s32 battery_report_type; |
c5a92aa3 | 528 | __s32 battery_report_id; |
4f5ca836 JF |
529 | #endif |
530 | ||
85cdaf52 | 531 | unsigned int status; /* see STAT flags above */ |
05f091ab | 532 | unsigned claimed; /* Claimed by hidinput, hiddev? */ |
1da177e4 | 533 | unsigned quirks; /* Various quirks the device can pull on us */ |
c849a614 | 534 | bool io_started; /* Protected by driver_lock. If IO has started */ |
1da177e4 LT |
535 | |
536 | struct list_head inputs; /* The list of inputs */ | |
537 | void *hiddev; /* The hiddev structure */ | |
86166b7b | 538 | void *hidraw; |
1da177e4 LT |
539 | int minor; /* Hiddev minor number */ |
540 | ||
1da177e4 LT |
541 | int open; /* is the device open by anyone? */ |
542 | char name[128]; /* Device name */ | |
543 | char phys[64]; /* Device physical location */ | |
544 | char uniq[64]; /* Device unique identifier (serial #) */ | |
545 | ||
229695e5 JK |
546 | void *driver_data; |
547 | ||
93c10132 JS |
548 | /* temporary hid_ff handling (until moved to the drivers) */ |
549 | int (*ff_init)(struct hid_device *); | |
550 | ||
aa938f79 | 551 | /* hiddev event handler */ |
93c10132 | 552 | int (*hiddev_connect)(struct hid_device *, unsigned int); |
c4c259bc | 553 | void (*hiddev_disconnect)(struct hid_device *); |
aa938f79 JK |
554 | void (*hiddev_hid_event) (struct hid_device *, struct hid_field *field, |
555 | struct hid_usage *, __s32); | |
aa8de2f0 | 556 | void (*hiddev_report_event) (struct hid_device *, struct hid_report *); |
86166b7b | 557 | |
cd667ce2 JK |
558 | /* debugging support via debugfs */ |
559 | unsigned short debug; | |
560 | struct dentry *debug_dir; | |
561 | struct dentry *debug_rdesc; | |
562 | struct dentry *debug_events; | |
563 | struct list_head debug_list; | |
1deb9d34 | 564 | spinlock_t debug_list_lock; |
cd667ce2 | 565 | wait_queue_head_t debug_wait; |
1da177e4 LT |
566 | }; |
567 | ||
d8ce9bf5 GT |
568 | #define to_hid_device(pdev) \ |
569 | container_of(pdev, struct hid_device, dev) | |
570 | ||
85cdaf52 JS |
571 | static inline void *hid_get_drvdata(struct hid_device *hdev) |
572 | { | |
573 | return dev_get_drvdata(&hdev->dev); | |
574 | } | |
575 | ||
576 | static inline void hid_set_drvdata(struct hid_device *hdev, void *data) | |
577 | { | |
578 | dev_set_drvdata(&hdev->dev, data); | |
579 | } | |
580 | ||
1da177e4 LT |
581 | #define HID_GLOBAL_STACK_SIZE 4 |
582 | #define HID_COLLECTION_STACK_SIZE 4 | |
583 | ||
e39f2d59 AD |
584 | #define HID_SCAN_FLAG_MT_WIN_8 BIT(0) |
585 | #define HID_SCAN_FLAG_VENDOR_SPECIFIC BIT(1) | |
586 | #define HID_SCAN_FLAG_GD_POINTER BIT(2) | |
f961bd35 | 587 | |
1da177e4 LT |
588 | struct hid_parser { |
589 | struct hid_global global; | |
590 | struct hid_global global_stack[HID_GLOBAL_STACK_SIZE]; | |
591 | unsigned global_stack_ptr; | |
592 | struct hid_local local; | |
593 | unsigned collection_stack[HID_COLLECTION_STACK_SIZE]; | |
594 | unsigned collection_stack_ptr; | |
595 | struct hid_device *device; | |
f961bd35 | 596 | unsigned scan_flags; |
1da177e4 LT |
597 | }; |
598 | ||
599 | struct hid_class_descriptor { | |
600 | __u8 bDescriptorType; | |
01d7b369 | 601 | __le16 wDescriptorLength; |
1da177e4 LT |
602 | } __attribute__ ((packed)); |
603 | ||
604 | struct hid_descriptor { | |
605 | __u8 bLength; | |
606 | __u8 bDescriptorType; | |
01d7b369 | 607 | __le16 bcdHID; |
1da177e4 LT |
608 | __u8 bCountryCode; |
609 | __u8 bNumDescriptors; | |
610 | ||
611 | struct hid_class_descriptor desc[1]; | |
612 | } __attribute__ ((packed)); | |
613 | ||
070748ed HR |
614 | #define HID_DEVICE(b, g, ven, prod) \ |
615 | .bus = (b), .group = (g), .vendor = (ven), .product = (prod) | |
616 | #define HID_USB_DEVICE(ven, prod) \ | |
617 | .bus = BUS_USB, .vendor = (ven), .product = (prod) | |
618 | #define HID_BLUETOOTH_DEVICE(ven, prod) \ | |
619 | .bus = BUS_BLUETOOTH, .vendor = (ven), .product = (prod) | |
9fb6bf02 BT |
620 | #define HID_I2C_DEVICE(ven, prod) \ |
621 | .bus = BUS_I2C, .vendor = (ven), .product = (prod) | |
85cdaf52 JS |
622 | |
623 | #define HID_REPORT_ID(rep) \ | |
624 | .report_type = (rep) | |
625 | #define HID_USAGE_ID(uhid, utype, ucode) \ | |
626 | .usage_hid = (uhid), .usage_type = (utype), .usage_code = (ucode) | |
627 | /* we don't want to catch types and codes equal to 0 */ | |
628 | #define HID_TERMINATOR (HID_ANY_ID - 1) | |
629 | ||
630 | struct hid_report_id { | |
631 | __u32 report_type; | |
632 | }; | |
633 | struct hid_usage_id { | |
634 | __u32 usage_hid; | |
635 | __u32 usage_type; | |
636 | __u32 usage_code; | |
637 | }; | |
638 | ||
639 | /** | |
640 | * struct hid_driver | |
641 | * @name: driver name (e.g. "Footech_bar-wheel") | |
642 | * @id_table: which devices is this driver for (must be non-NULL for probe | |
643 | * to be called) | |
3a6f82f7 JS |
644 | * @dyn_list: list of dynamically added device ids |
645 | * @dyn_lock: lock protecting @dyn_list | |
85cdaf52 JS |
646 | * @probe: new device inserted |
647 | * @remove: device removed (NULL if not a hot-plug capable driver) | |
648 | * @report_table: on which reports to call raw_event (NULL means all) | |
649 | * @raw_event: if report in report_table, this hook is called (NULL means nop) | |
650 | * @usage_table: on which events to call event (NULL means all) | |
651 | * @event: if usage in usage_table, this hook is called (NULL means nop) | |
6d85d037 | 652 | * @report: this hook is called after parsing a report (NULL means nop) |
c500c971 JS |
653 | * @report_fixup: called before report descriptor parsing (NULL means nop) |
654 | * @input_mapping: invoked on input registering before mapping an usage | |
655 | * @input_mapped: invoked on input registering after mapping an usage | |
9ebf3d76 | 656 | * @input_configured: invoked just before the device is registered |
0d2689c0 | 657 | * @feature_mapping: invoked on feature registering |
6a740aa4 BP |
658 | * @suspend: invoked on suspend (NULL means nop) |
659 | * @resume: invoked on resume if device was not reset (NULL means nop) | |
660 | * @reset_resume: invoked on resume if device was reset (NULL means nop) | |
85cdaf52 | 661 | * |
c849a614 AR |
662 | * probe should return -errno on error, or 0 on success. During probe, |
663 | * input will not be passed to raw_event unless hid_device_io_start is | |
664 | * called. | |
665 | * | |
85cdaf52 JS |
666 | * raw_event and event should return 0 on no action performed, 1 when no |
667 | * further processing should be done and negative on error | |
c500c971 JS |
668 | * |
669 | * input_mapping shall return a negative value to completely ignore this usage | |
670 | * (e.g. doubled or invalid usage), zero to continue with parsing of this | |
671 | * usage by generic code (no special handling needed) or positive to skip | |
672 | * generic parsing (needed special handling which was done in the hook already) | |
673 | * input_mapped shall return negative to inform the layer that this usage | |
674 | * should not be considered for further processing or zero to notify that | |
675 | * no processing was performed and should be done in a generic manner | |
676 | * Both these functions may be NULL which means the same behavior as returning | |
677 | * zero from them. | |
85cdaf52 JS |
678 | */ |
679 | struct hid_driver { | |
680 | char *name; | |
681 | const struct hid_device_id *id_table; | |
682 | ||
3a6f82f7 JS |
683 | struct list_head dyn_list; |
684 | spinlock_t dyn_lock; | |
685 | ||
85cdaf52 JS |
686 | int (*probe)(struct hid_device *dev, const struct hid_device_id *id); |
687 | void (*remove)(struct hid_device *dev); | |
688 | ||
689 | const struct hid_report_id *report_table; | |
690 | int (*raw_event)(struct hid_device *hdev, struct hid_report *report, | |
691 | u8 *data, int size); | |
692 | const struct hid_usage_id *usage_table; | |
693 | int (*event)(struct hid_device *hdev, struct hid_field *field, | |
694 | struct hid_usage *usage, __s32 value); | |
6d85d037 | 695 | void (*report)(struct hid_device *hdev, struct hid_report *report); |
c500c971 | 696 | |
73e4008d NK |
697 | __u8 *(*report_fixup)(struct hid_device *hdev, __u8 *buf, |
698 | unsigned int *size); | |
c500c971 JS |
699 | |
700 | int (*input_mapping)(struct hid_device *hdev, | |
701 | struct hid_input *hidinput, struct hid_field *field, | |
702 | struct hid_usage *usage, unsigned long **bit, int *max); | |
703 | int (*input_mapped)(struct hid_device *hdev, | |
704 | struct hid_input *hidinput, struct hid_field *field, | |
705 | struct hid_usage *usage, unsigned long **bit, int *max); | |
9154301a DT |
706 | int (*input_configured)(struct hid_device *hdev, |
707 | struct hid_input *hidinput); | |
0d2689c0 | 708 | void (*feature_mapping)(struct hid_device *hdev, |
f635bd11 | 709 | struct hid_field *field, |
0d2689c0 | 710 | struct hid_usage *usage); |
6a740aa4 BP |
711 | #ifdef CONFIG_PM |
712 | int (*suspend)(struct hid_device *hdev, pm_message_t message); | |
713 | int (*resume)(struct hid_device *hdev); | |
714 | int (*reset_resume)(struct hid_device *hdev); | |
715 | #endif | |
85cdaf52 JS |
716 | /* private: */ |
717 | struct device_driver driver; | |
718 | }; | |
719 | ||
ba91a967 GT |
720 | #define to_hid_driver(pdrv) \ |
721 | container_of(pdrv, struct hid_driver, driver) | |
722 | ||
c500c971 JS |
723 | /** |
724 | * hid_ll_driver - low level driver callbacks | |
725 | * @start: called on probe to start the device | |
726 | * @stop: called on remove | |
727 | * @open: called by input layer on open | |
728 | * @close: called by input layer on close | |
c500c971 JS |
729 | * @parse: this method is called only once to parse the device data, |
730 | * shouldn't allocate anything to not leak memory | |
e90a6df8 | 731 | * @request: send report request to device (e.g. feature report) |
3373443b | 732 | * @wait: wait for buffered io to complete (send/recv reports) |
b69d6536 BT |
733 | * @raw_request: send raw report request to device (e.g. feature report) |
734 | * @output_report: send output report to device | |
9684819b | 735 | * @idle: send idle request to device |
c500c971 JS |
736 | */ |
737 | struct hid_ll_driver { | |
738 | int (*start)(struct hid_device *hdev); | |
739 | void (*stop)(struct hid_device *hdev); | |
740 | ||
741 | int (*open)(struct hid_device *hdev); | |
742 | void (*close)(struct hid_device *hdev); | |
743 | ||
0361a28d ON |
744 | int (*power)(struct hid_device *hdev, int level); |
745 | ||
c500c971 | 746 | int (*parse)(struct hid_device *hdev); |
e90a6df8 HR |
747 | |
748 | void (*request)(struct hid_device *hdev, | |
749 | struct hid_report *report, int reqtype); | |
750 | ||
3373443b HR |
751 | int (*wait)(struct hid_device *hdev); |
752 | ||
cd4dc082 FP |
753 | int (*raw_request) (struct hid_device *hdev, unsigned char reportnum, |
754 | __u8 *buf, size_t len, unsigned char rtype, | |
755 | int reqtype); | |
756 | ||
757 | int (*output_report) (struct hid_device *hdev, __u8 *buf, size_t len); | |
758 | ||
759 | int (*idle)(struct hid_device *hdev, int report, int idle, int reqtype); | |
c500c971 JS |
760 | }; |
761 | ||
0361a28d ON |
762 | #define PM_HINT_FULLON 1<<5 |
763 | #define PM_HINT_NORMAL 1<<1 | |
764 | ||
1da177e4 LT |
765 | /* Applications from HID Usage Tables 4/8/99 Version 1.1 */ |
766 | /* We ignore a few input applications that are not widely used */ | |
8b0e58a7 | 767 | #define IS_INPUT_APPLICATION(a) (((a >= 0x00010000) && (a <= 0x00010008)) || (a == 0x00010080) || (a == 0x000c0001) || ((a >= 0x000d0002) && (a <= 0x000d0006))) |
229695e5 JK |
768 | |
769 | /* HID core API */ | |
58037eb9 | 770 | |
58037eb9 | 771 | extern int hid_debug; |
58037eb9 | 772 | |
4529eefa | 773 | extern bool hid_ignore(struct hid_device *); |
85cdaf52 JS |
774 | extern int hid_add_device(struct hid_device *); |
775 | extern void hid_destroy_device(struct hid_device *); | |
776 | ||
777 | extern int __must_check __hid_register_driver(struct hid_driver *, | |
778 | struct module *, const char *mod_name); | |
eb5589a8 PG |
779 | |
780 | /* use a define to avoid include chaining to get THIS_MODULE & friends */ | |
781 | #define hid_register_driver(driver) \ | |
782 | __hid_register_driver(driver, THIS_MODULE, KBUILD_MODNAME) | |
783 | ||
85cdaf52 JS |
784 | extern void hid_unregister_driver(struct hid_driver *); |
785 | ||
4d02c58e HS |
786 | /** |
787 | * module_hid_driver() - Helper macro for registering a HID driver | |
788 | * @__hid_driver: hid_driver struct | |
789 | * | |
790 | * Helper macro for HID drivers which do not do anything special in module | |
791 | * init/exit. This eliminates a lot of boilerplate. Each module may only | |
792 | * use this macro once, and calling it replaces module_init() and module_exit() | |
793 | */ | |
794 | #define module_hid_driver(__hid_driver) \ | |
795 | module_driver(__hid_driver, hid_register_driver, \ | |
796 | hid_unregister_driver) | |
797 | ||
7d12e780 | 798 | extern void hidinput_hid_event(struct hid_device *, struct hid_field *, struct hid_usage *, __s32); |
1da177e4 | 799 | extern void hidinput_report_event(struct hid_device *hid, struct hid_report *report); |
93c10132 | 800 | extern int hidinput_connect(struct hid_device *hid, unsigned int force); |
1da177e4 | 801 | extern void hidinput_disconnect(struct hid_device *); |
1da177e4 | 802 | |
1da177e4 | 803 | int hid_set_field(struct hid_field *, unsigned, __s32); |
aa8de2f0 | 804 | int hid_input_report(struct hid_device *, int type, u8 *, int, int); |
dde5845a | 805 | int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field); |
4371ea82 DK |
806 | struct hid_field *hidinput_get_led_field(struct hid_device *hid); |
807 | unsigned int hidinput_count_leds(struct hid_device *hid); | |
37cf6e6f | 808 | __s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code); |
dde5845a | 809 | void hid_output_report(struct hid_report *report, __u8 *data); |
4fa5a7f7 | 810 | void __hid_request(struct hid_device *hid, struct hid_report *rep, int reqtype); |
27ce4050 | 811 | u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags); |
85cdaf52 | 812 | struct hid_device *hid_allocate_device(void); |
90a006ab | 813 | struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id); |
85cdaf52 | 814 | int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size); |
331415ff KC |
815 | struct hid_report *hid_validate_values(struct hid_device *hid, |
816 | unsigned int type, unsigned int id, | |
817 | unsigned int field_index, | |
818 | unsigned int report_counts); | |
a7197c2e | 819 | int hid_open_report(struct hid_device *device); |
0361a28d | 820 | int hid_check_keys_pressed(struct hid_device *hid); |
93c10132 | 821 | int hid_connect(struct hid_device *hid, unsigned int connect_mask); |
c4c259bc | 822 | void hid_disconnect(struct hid_device *hid); |
bbc21cfd JF |
823 | const struct hid_device_id *hid_match_id(struct hid_device *hdev, |
824 | const struct hid_device_id *id); | |
77463838 | 825 | s32 hid_snto32(__u32 value, unsigned n); |
04fba786 GB |
826 | __u32 hid_field_extract(const struct hid_device *hid, __u8 *report, |
827 | unsigned offset, unsigned n); | |
85cdaf52 | 828 | |
c849a614 AR |
829 | /** |
830 | * hid_device_io_start - enable HID input during probe, remove | |
831 | * | |
832 | * @hid - the device | |
833 | * | |
834 | * This should only be called during probe or remove and only be | |
835 | * called by the thread calling probe or remove. It will allow | |
836 | * incoming packets to be delivered to the driver. | |
837 | */ | |
838 | static inline void hid_device_io_start(struct hid_device *hid) { | |
839 | if (hid->io_started) { | |
840 | dev_warn(&hid->dev, "io already started"); | |
841 | return; | |
842 | } | |
843 | hid->io_started = true; | |
844 | up(&hid->driver_input_lock); | |
845 | } | |
846 | ||
847 | /** | |
848 | * hid_device_io_stop - disable HID input during probe, remove | |
849 | * | |
850 | * @hid - the device | |
851 | * | |
852 | * Should only be called after hid_device_io_start. It will prevent | |
853 | * incoming packets from going to the driver for the duration of | |
854 | * probe, remove. If called during probe, packets will still go to the | |
855 | * driver after probe is complete. This function should only be called | |
856 | * by the thread calling probe or remove. | |
857 | */ | |
858 | static inline void hid_device_io_stop(struct hid_device *hid) { | |
859 | if (!hid->io_started) { | |
860 | dev_warn(&hid->dev, "io already stopped"); | |
861 | return; | |
862 | } | |
863 | hid->io_started = false; | |
864 | down(&hid->driver_input_lock); | |
865 | } | |
866 | ||
022e8c4d JS |
867 | /** |
868 | * hid_map_usage - map usage input bits | |
869 | * | |
870 | * @hidinput: hidinput which we are interested in | |
871 | * @usage: usage to fill in | |
872 | * @bit: pointer to input->{}bit (out parameter) | |
873 | * @max: maximal valid usage->code to consider later (out parameter) | |
874 | * @type: input event type (EV_KEY, EV_REL, ...) | |
875 | * @c: code which corresponds to this usage and type | |
876 | */ | |
877 | static inline void hid_map_usage(struct hid_input *hidinput, | |
878 | struct hid_usage *usage, unsigned long **bit, int *max, | |
879 | __u8 type, __u16 c) | |
880 | { | |
881 | struct input_dev *input = hidinput->input; | |
882 | ||
883 | usage->type = type; | |
884 | usage->code = c; | |
885 | ||
886 | switch (type) { | |
887 | case EV_ABS: | |
888 | *bit = input->absbit; | |
889 | *max = ABS_MAX; | |
890 | break; | |
891 | case EV_REL: | |
892 | *bit = input->relbit; | |
893 | *max = REL_MAX; | |
894 | break; | |
895 | case EV_KEY: | |
896 | *bit = input->keybit; | |
897 | *max = KEY_MAX; | |
898 | break; | |
899 | case EV_LED: | |
900 | *bit = input->ledbit; | |
901 | *max = LED_MAX; | |
902 | break; | |
903 | } | |
904 | } | |
905 | ||
906 | /** | |
907 | * hid_map_usage_clear - map usage input bits and clear the input bit | |
908 | * | |
909 | * The same as hid_map_usage, except the @c bit is also cleared in supported | |
910 | * bits (@bit). | |
911 | */ | |
912 | static inline void hid_map_usage_clear(struct hid_input *hidinput, | |
913 | struct hid_usage *usage, unsigned long **bit, int *max, | |
914 | __u8 type, __u16 c) | |
915 | { | |
916 | hid_map_usage(hidinput, usage, bit, max, type, c); | |
917 | clear_bit(c, *bit); | |
918 | } | |
919 | ||
c500c971 JS |
920 | /** |
921 | * hid_parse - parse HW reports | |
922 | * | |
923 | * @hdev: hid device | |
924 | * | |
925 | * Call this from probe after you set up the device (if needed). Your | |
926 | * report_fixup will be called (if non-NULL) after reading raw report from | |
927 | * device before passing it to hid layer for real parsing. | |
928 | */ | |
929 | static inline int __must_check hid_parse(struct hid_device *hdev) | |
930 | { | |
a7197c2e | 931 | return hid_open_report(hdev); |
c500c971 JS |
932 | } |
933 | ||
934 | /** | |
935 | * hid_hw_start - start underlaying HW | |
936 | * | |
937 | * @hdev: hid device | |
93c10132 | 938 | * @connect_mask: which outputs to connect, see HID_CONNECT_* |
c500c971 JS |
939 | * |
940 | * Call this in probe function *after* hid_parse. This will setup HW buffers | |
941 | * and start the device (if not deffered to device open). hid_hw_stop must be | |
25985edc | 942 | * called if this was successful. |
c500c971 | 943 | */ |
93c10132 JS |
944 | static inline int __must_check hid_hw_start(struct hid_device *hdev, |
945 | unsigned int connect_mask) | |
c500c971 | 946 | { |
93c10132 JS |
947 | int ret = hdev->ll_driver->start(hdev); |
948 | if (ret || !connect_mask) | |
949 | return ret; | |
950 | ret = hid_connect(hdev, connect_mask); | |
951 | if (ret) | |
952 | hdev->ll_driver->stop(hdev); | |
953 | return ret; | |
c500c971 JS |
954 | } |
955 | ||
956 | /** | |
957 | * hid_hw_stop - stop underlaying HW | |
958 | * | |
959 | * @hdev: hid device | |
960 | * | |
961 | * This is usually called from remove function or from probe when something | |
962 | * failed and hid_hw_start was called already. | |
963 | */ | |
964 | static inline void hid_hw_stop(struct hid_device *hdev) | |
965 | { | |
c4c259bc | 966 | hid_disconnect(hdev); |
c500c971 JS |
967 | hdev->ll_driver->stop(hdev); |
968 | } | |
969 | ||
5bea7660 DT |
970 | /** |
971 | * hid_hw_open - signal underlaying HW to start delivering events | |
972 | * | |
973 | * @hdev: hid device | |
974 | * | |
975 | * Tell underlying HW to start delivering events from the device. | |
976 | * This function should be called sometime after successful call | |
977 | * to hid_hiw_start(). | |
978 | */ | |
979 | static inline int __must_check hid_hw_open(struct hid_device *hdev) | |
980 | { | |
981 | return hdev->ll_driver->open(hdev); | |
982 | } | |
983 | ||
984 | /** | |
985 | * hid_hw_close - signal underlaying HW to stop delivering events | |
986 | * | |
987 | * @hdev: hid device | |
988 | * | |
989 | * This function indicates that we are not interested in the events | |
990 | * from this device anymore. Delivery of events may or may not stop, | |
991 | * depending on the number of users still outstanding. | |
992 | */ | |
993 | static inline void hid_hw_close(struct hid_device *hdev) | |
994 | { | |
995 | hdev->ll_driver->close(hdev); | |
996 | } | |
997 | ||
998 | /** | |
999 | * hid_hw_power - requests underlying HW to go into given power mode | |
1000 | * | |
1001 | * @hdev: hid device | |
1002 | * @level: requested power level (one of %PM_HINT_* defines) | |
1003 | * | |
1004 | * This function requests underlying hardware to enter requested power | |
1005 | * mode. | |
1006 | */ | |
1007 | ||
1008 | static inline int hid_hw_power(struct hid_device *hdev, int level) | |
1009 | { | |
1010 | return hdev->ll_driver->power ? hdev->ll_driver->power(hdev, level) : 0; | |
1011 | } | |
1012 | ||
e90a6df8 HR |
1013 | |
1014 | /** | |
1015 | * hid_hw_request - send report request to device | |
1016 | * | |
1017 | * @hdev: hid device | |
1018 | * @report: report to send | |
1019 | * @reqtype: hid request type | |
1020 | */ | |
1021 | static inline void hid_hw_request(struct hid_device *hdev, | |
1022 | struct hid_report *report, int reqtype) | |
1023 | { | |
1024 | if (hdev->ll_driver->request) | |
4fa5a7f7 BT |
1025 | return hdev->ll_driver->request(hdev, report, reqtype); |
1026 | ||
1027 | __hid_request(hdev, report, reqtype); | |
e90a6df8 HR |
1028 | } |
1029 | ||
b69d6536 BT |
1030 | /** |
1031 | * hid_hw_raw_request - send report request to device | |
1032 | * | |
1033 | * @hdev: hid device | |
1034 | * @reportnum: report ID | |
1035 | * @buf: in/out data to transfer | |
1036 | * @len: length of buf | |
1037 | * @rtype: HID report type | |
1038 | * @reqtype: HID_REQ_GET_REPORT or HID_REQ_SET_REPORT | |
1039 | * | |
1040 | * @return: count of data transfered, negative if error | |
1041 | * | |
1042 | * Same behavior as hid_hw_request, but with raw buffers instead. | |
1043 | */ | |
1044 | static inline int hid_hw_raw_request(struct hid_device *hdev, | |
1045 | unsigned char reportnum, __u8 *buf, | |
1046 | size_t len, unsigned char rtype, int reqtype) | |
1047 | { | |
53182517 BT |
1048 | if (len < 1 || len > HID_MAX_BUFFER_SIZE || !buf) |
1049 | return -EINVAL; | |
1050 | ||
3c86726c | 1051 | return hdev->ll_driver->raw_request(hdev, reportnum, buf, len, |
b69d6536 | 1052 | rtype, reqtype); |
b69d6536 BT |
1053 | } |
1054 | ||
1055 | /** | |
1056 | * hid_hw_output_report - send output report to device | |
1057 | * | |
1058 | * @hdev: hid device | |
1059 | * @buf: raw data to transfer | |
1060 | * @len: length of buf | |
1061 | * | |
1062 | * @return: count of data transfered, negative if error | |
1063 | */ | |
1064 | static inline int hid_hw_output_report(struct hid_device *hdev, __u8 *buf, | |
1065 | size_t len) | |
1066 | { | |
53182517 BT |
1067 | if (len < 1 || len > HID_MAX_BUFFER_SIZE || !buf) |
1068 | return -EINVAL; | |
1069 | ||
b69d6536 BT |
1070 | if (hdev->ll_driver->output_report) |
1071 | return hdev->ll_driver->output_report(hdev, buf, len); | |
1072 | ||
1073 | return -ENOSYS; | |
1074 | } | |
1075 | ||
9684819b BT |
1076 | /** |
1077 | * hid_hw_idle - send idle request to device | |
1078 | * | |
1079 | * @hdev: hid device | |
1080 | * @report: report to control | |
1081 | * @idle: idle state | |
1082 | * @reqtype: hid request type | |
1083 | */ | |
1084 | static inline int hid_hw_idle(struct hid_device *hdev, int report, int idle, | |
1085 | int reqtype) | |
1086 | { | |
1087 | if (hdev->ll_driver->idle) | |
1088 | return hdev->ll_driver->idle(hdev, report, idle, reqtype); | |
1089 | ||
1090 | return 0; | |
1091 | } | |
1092 | ||
3373443b HR |
1093 | /** |
1094 | * hid_hw_wait - wait for buffered io to complete | |
1095 | * | |
1096 | * @hdev: hid device | |
1097 | */ | |
1098 | static inline void hid_hw_wait(struct hid_device *hdev) | |
1099 | { | |
1100 | if (hdev->ll_driver->wait) | |
1101 | hdev->ll_driver->wait(hdev); | |
1102 | } | |
1103 | ||
dabb05c6 MM |
1104 | /** |
1105 | * hid_report_len - calculate the report length | |
1106 | * | |
1107 | * @report: the report we want to know the length | |
1108 | */ | |
1109 | static inline int hid_report_len(struct hid_report *report) | |
1110 | { | |
1111 | /* equivalent to DIV_ROUND_UP(report->size, 8) + !!(report->id > 0) */ | |
1112 | return ((report->size - 1) >> 3) + 1 + (report->id > 0); | |
1113 | } | |
1114 | ||
b6787242 | 1115 | int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size, |
85cdaf52 JS |
1116 | int interrupt); |
1117 | ||
876b9276 | 1118 | /* HID quirks API */ |
2eb5dc30 | 1119 | u32 usbhid_lookup_quirk(const u16 idVendor, const u16 idProduct); |
876b9276 PW |
1120 | int usbhid_quirks_init(char **quirks_param); |
1121 | void usbhid_quirks_exit(void); | |
2eb5dc30 | 1122 | |
224ee88f AH |
1123 | #ifdef CONFIG_HID_PID |
1124 | int hid_pidff_init(struct hid_device *hid); | |
1125 | #else | |
76483cf4 | 1126 | #define hid_pidff_init NULL |
1da177e4 | 1127 | #endif |
58037eb9 | 1128 | |
4291ee30 JP |
1129 | #define dbg_hid(format, arg...) \ |
1130 | do { \ | |
1131 | if (hid_debug) \ | |
1132 | printk(KERN_DEBUG "%s: " format, __FILE__, ##arg); \ | |
1133 | } while (0) | |
1134 | ||
1135 | #define hid_printk(level, hid, fmt, arg...) \ | |
1136 | dev_printk(level, &(hid)->dev, fmt, ##arg) | |
1137 | #define hid_emerg(hid, fmt, arg...) \ | |
1138 | dev_emerg(&(hid)->dev, fmt, ##arg) | |
1139 | #define hid_crit(hid, fmt, arg...) \ | |
1140 | dev_crit(&(hid)->dev, fmt, ##arg) | |
1141 | #define hid_alert(hid, fmt, arg...) \ | |
1142 | dev_alert(&(hid)->dev, fmt, ##arg) | |
1143 | #define hid_err(hid, fmt, arg...) \ | |
1144 | dev_err(&(hid)->dev, fmt, ##arg) | |
1145 | #define hid_notice(hid, fmt, arg...) \ | |
1146 | dev_notice(&(hid)->dev, fmt, ##arg) | |
1147 | #define hid_warn(hid, fmt, arg...) \ | |
1148 | dev_warn(&(hid)->dev, fmt, ##arg) | |
1149 | #define hid_info(hid, fmt, arg...) \ | |
1150 | dev_info(&(hid)->dev, fmt, ##arg) | |
1151 | #define hid_dbg(hid, fmt, arg...) \ | |
1152 | dev_dbg(&(hid)->dev, fmt, ##arg) | |
1153 | ||
57d292bd | 1154 | #endif |