2 * Copyright (c) 2000-2001 Vojtech Pavlik
3 * Copyright (c) 2006-2007 Jiri Kosina
5 * HID to Linux Input mapping
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 * Should you need to contact me, the author, you can do so either by
24 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
25 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
28 #include <linux/module.h>
29 #include <linux/slab.h>
30 #include <linux/kernel.h>
32 #include <linux/hid.h>
33 #include <linux/hid-debug.h>
35 #define unk KEY_UNKNOWN
37 static const unsigned char hid_keyboard
[256] = {
38 0, 0, 0, 0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
39 50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44, 2, 3,
40 4, 5, 6, 7, 8, 9, 10, 11, 28, 1, 14, 15, 57, 12, 13, 26,
41 27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
42 65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
43 105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
44 72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190,
45 191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113,
46 115,114,unk
,unk
,unk
,121,unk
, 89, 93,124, 92, 94, 95,unk
,unk
,unk
,
47 122,123, 90, 91, 85,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,
48 unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,
49 unk
,unk
,unk
,unk
,unk
,unk
,179,180,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,
50 unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,
51 unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,
52 29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
53 150,158,159,128,136,177,178,176,142,152,173,140,unk
,unk
,unk
,unk
59 } hid_hat_to_axis
[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
61 #define map_abs(c) hid_map_usage(hidinput, usage, &bit, &max, EV_ABS, (c))
62 #define map_rel(c) hid_map_usage(hidinput, usage, &bit, &max, EV_REL, (c))
63 #define map_key(c) hid_map_usage(hidinput, usage, &bit, &max, EV_KEY, (c))
64 #define map_led(c) hid_map_usage(hidinput, usage, &bit, &max, EV_LED, (c))
66 #define map_abs_clear(c) hid_map_usage_clear(hidinput, usage, &bit, \
68 #define map_key_clear(c) hid_map_usage_clear(hidinput, usage, &bit, \
71 static inline int match_scancode(int code
, int scancode
)
75 return ((code
& (HID_USAGE_PAGE
| HID_USAGE
)) == scancode
);
78 static inline int match_keycode(int code
, int keycode
)
82 return (code
== keycode
);
85 static struct hid_usage
*hidinput_find_key(struct hid_device
*hid
,
86 int scancode
, int keycode
)
89 struct hid_report
*report
;
90 struct hid_usage
*usage
;
92 for (k
= HID_INPUT_REPORT
; k
<= HID_OUTPUT_REPORT
; k
++) {
93 list_for_each_entry(report
, &hid
->report_enum
[k
].report_list
, list
) {
94 for (i
= 0; i
< report
->maxfield
; i
++) {
95 for ( j
= 0; j
< report
->field
[i
]->maxusage
; j
++) {
96 usage
= report
->field
[i
]->usage
+ j
;
97 if (usage
->type
== EV_KEY
&&
98 match_scancode(usage
->hid
, scancode
) &&
99 match_keycode(usage
->code
, keycode
))
108 static int hidinput_getkeycode(struct input_dev
*dev
, int scancode
,
111 struct hid_device
*hid
= input_get_drvdata(dev
);
112 struct hid_usage
*usage
;
114 usage
= hidinput_find_key(hid
, scancode
, 0);
116 *keycode
= usage
->code
;
122 static int hidinput_setkeycode(struct input_dev
*dev
, int scancode
,
125 struct hid_device
*hid
= input_get_drvdata(dev
);
126 struct hid_usage
*usage
;
129 if (keycode
< 0 || keycode
> KEY_MAX
)
132 usage
= hidinput_find_key(hid
, scancode
, 0);
134 old_keycode
= usage
->code
;
135 usage
->code
= keycode
;
137 clear_bit(old_keycode
, dev
->keybit
);
138 set_bit(usage
->code
, dev
->keybit
);
139 dbg_hid(KERN_DEBUG
"Assigned keycode %d to HID usage code %x\n", keycode
, scancode
);
140 /* Set the keybit for the old keycode if the old keycode is used
142 if (hidinput_find_key (hid
, 0, old_keycode
))
143 set_bit(old_keycode
, dev
->keybit
);
152 static void hidinput_configure_usage(struct hid_input
*hidinput
, struct hid_field
*field
,
153 struct hid_usage
*usage
)
155 struct input_dev
*input
= hidinput
->input
;
156 struct hid_device
*device
= input_get_drvdata(input
);
157 int max
= 0, code
, ret
;
158 unsigned long *bit
= NULL
;
160 field
->hidinput
= hidinput
;
162 dbg_hid("Mapping: ");
163 hid_resolv_usage(usage
->hid
);
164 dbg_hid_line(" ---> ");
166 if (field
->flags
& HID_MAIN_ITEM_CONSTANT
)
169 /* only LED usages are supported in output fields */
170 if (field
->report_type
== HID_OUTPUT_REPORT
&&
171 (usage
->hid
& HID_USAGE_PAGE
) != HID_UP_LED
) {
172 dbg_hid_line(" [non-LED output field] ");
176 /* handle input mappings for quirky devices */
177 ret
= hidinput_mapping_quirks(usage
, hidinput
, &bit
, &max
);
181 if (device
->driver
->input_mapping
) {
182 int ret
= device
->driver
->input_mapping(device
, hidinput
, field
,
190 switch (usage
->hid
& HID_USAGE_PAGE
) {
191 case HID_UP_UNDEFINED
:
194 case HID_UP_KEYBOARD
:
195 set_bit(EV_REP
, input
->evbit
);
197 if ((usage
->hid
& HID_USAGE
) < 256) {
198 if (!hid_keyboard
[usage
->hid
& HID_USAGE
]) goto ignore
;
199 map_key_clear(hid_keyboard
[usage
->hid
& HID_USAGE
]);
201 map_key(KEY_UNKNOWN
);
206 code
= ((usage
->hid
- 1) & 0xf);
208 switch (field
->application
) {
210 case HID_GD_POINTER
: code
+= 0x110; break;
211 case HID_GD_JOYSTICK
: code
+= 0x120; break;
212 case HID_GD_GAMEPAD
: code
+= 0x130; break;
214 switch (field
->physical
) {
216 case HID_GD_POINTER
: code
+= 0x110; break;
217 case HID_GD_JOYSTICK
: code
+= 0x120; break;
218 case HID_GD_GAMEPAD
: code
+= 0x130; break;
219 default: code
+= 0x100;
226 case HID_UP_SIMULATION
:
227 switch (usage
->hid
& 0xffff) {
228 case 0xba: map_abs(ABS_RUDDER
); break;
229 case 0xbb: map_abs(ABS_THROTTLE
); break;
230 case 0xc4: map_abs(ABS_GAS
); break;
231 case 0xc5: map_abs(ABS_BRAKE
); break;
232 case 0xc8: map_abs(ABS_WHEEL
); break;
233 default: goto ignore
;
238 if ((usage
->hid
& 0xf0) == 0x80) { /* SystemControl */
239 switch (usage
->hid
& 0xf) {
240 case 0x1: map_key_clear(KEY_POWER
); break;
241 case 0x2: map_key_clear(KEY_SLEEP
); break;
242 case 0x3: map_key_clear(KEY_WAKEUP
); break;
243 default: goto unknown
;
248 if ((usage
->hid
& 0xf0) == 0x90) { /* D-pad */
249 switch (usage
->hid
) {
250 case HID_GD_UP
: usage
->hat_dir
= 1; break;
251 case HID_GD_DOWN
: usage
->hat_dir
= 5; break;
252 case HID_GD_RIGHT
: usage
->hat_dir
= 3; break;
253 case HID_GD_LEFT
: usage
->hat_dir
= 7; break;
254 default: goto unknown
;
257 map_abs(field
->dpad
);
264 switch (usage
->hid
) {
265 /* These usage IDs map directly to the usage codes. */
266 case HID_GD_X
: case HID_GD_Y
: case HID_GD_Z
:
267 case HID_GD_RX
: case HID_GD_RY
: case HID_GD_RZ
:
268 case HID_GD_SLIDER
: case HID_GD_DIAL
: case HID_GD_WHEEL
:
269 if (field
->flags
& HID_MAIN_ITEM_RELATIVE
)
270 map_rel(usage
->hid
& 0xf);
272 map_abs(usage
->hid
& 0xf);
275 case HID_GD_HATSWITCH
:
276 usage
->hat_min
= field
->logical_minimum
;
277 usage
->hat_max
= field
->logical_maximum
;
281 case HID_GD_START
: map_key_clear(BTN_START
); break;
282 case HID_GD_SELECT
: map_key_clear(BTN_SELECT
); break;
284 default: goto unknown
;
290 switch (usage
->hid
& 0xffff) { /* HID-Value: */
291 case 0x01: map_led (LED_NUML
); break; /* "Num Lock" */
292 case 0x02: map_led (LED_CAPSL
); break; /* "Caps Lock" */
293 case 0x03: map_led (LED_SCROLLL
); break; /* "Scroll Lock" */
294 case 0x04: map_led (LED_COMPOSE
); break; /* "Compose" */
295 case 0x05: map_led (LED_KANA
); break; /* "Kana" */
296 case 0x27: map_led (LED_SLEEP
); break; /* "Stand-By" */
297 case 0x4c: map_led (LED_SUSPEND
); break; /* "System Suspend" */
298 case 0x09: map_led (LED_MUTE
); break; /* "Mute" */
299 case 0x4b: map_led (LED_MISC
); break; /* "Generic Indicator" */
300 case 0x19: map_led (LED_MAIL
); break; /* "Message Waiting" */
301 case 0x4d: map_led (LED_CHARGING
); break; /* "External Power Connected" */
303 default: goto ignore
;
307 case HID_UP_DIGITIZER
:
308 switch (usage
->hid
& 0xff) {
309 case 0x30: /* TipPressure */
310 if (!test_bit(BTN_TOUCH
, input
->keybit
)) {
311 device
->quirks
|= HID_QUIRK_NOTOUCH
;
312 set_bit(EV_KEY
, input
->evbit
);
313 set_bit(BTN_TOUCH
, input
->keybit
);
315 map_abs_clear(ABS_PRESSURE
);
318 case 0x32: /* InRange */
319 switch (field
->physical
& 0xff) {
320 case 0x21: map_key(BTN_TOOL_MOUSE
); break;
321 case 0x22: map_key(BTN_TOOL_FINGER
); break;
322 default: map_key(BTN_TOOL_PEN
); break;
326 case 0x3c: /* Invert */
327 map_key_clear(BTN_TOOL_RUBBER
);
330 case 0x33: /* Touch */
331 case 0x42: /* TipSwitch */
332 case 0x43: /* TipSwitch2 */
333 device
->quirks
&= ~HID_QUIRK_NOTOUCH
;
334 map_key_clear(BTN_TOUCH
);
337 case 0x44: /* BarrelSwitch */
338 map_key_clear(BTN_STYLUS
);
341 default: goto unknown
;
345 case HID_UP_CONSUMER
: /* USB HUT v1.1, pages 56-62 */
346 switch (usage
->hid
& HID_USAGE
) {
347 case 0x000: goto ignore
;
348 case 0x034: map_key_clear(KEY_SLEEP
); break;
349 case 0x036: map_key_clear(BTN_MISC
); break;
351 case 0x040: map_key_clear(KEY_MENU
); break;
352 case 0x045: map_key_clear(KEY_RADIO
); break;
354 case 0x083: map_key_clear(KEY_LAST
); break;
355 case 0x088: map_key_clear(KEY_PC
); break;
356 case 0x089: map_key_clear(KEY_TV
); break;
357 case 0x08a: map_key_clear(KEY_WWW
); break;
358 case 0x08b: map_key_clear(KEY_DVD
); break;
359 case 0x08c: map_key_clear(KEY_PHONE
); break;
360 case 0x08d: map_key_clear(KEY_PROGRAM
); break;
361 case 0x08e: map_key_clear(KEY_VIDEOPHONE
); break;
362 case 0x08f: map_key_clear(KEY_GAMES
); break;
363 case 0x090: map_key_clear(KEY_MEMO
); break;
364 case 0x091: map_key_clear(KEY_CD
); break;
365 case 0x092: map_key_clear(KEY_VCR
); break;
366 case 0x093: map_key_clear(KEY_TUNER
); break;
367 case 0x094: map_key_clear(KEY_EXIT
); break;
368 case 0x095: map_key_clear(KEY_HELP
); break;
369 case 0x096: map_key_clear(KEY_TAPE
); break;
370 case 0x097: map_key_clear(KEY_TV2
); break;
371 case 0x098: map_key_clear(KEY_SAT
); break;
372 case 0x09a: map_key_clear(KEY_PVR
); break;
374 case 0x09c: map_key_clear(KEY_CHANNELUP
); break;
375 case 0x09d: map_key_clear(KEY_CHANNELDOWN
); break;
376 case 0x0a0: map_key_clear(KEY_VCR2
); break;
378 case 0x0b0: map_key_clear(KEY_PLAY
); break;
379 case 0x0b1: map_key_clear(KEY_PAUSE
); break;
380 case 0x0b2: map_key_clear(KEY_RECORD
); break;
381 case 0x0b3: map_key_clear(KEY_FASTFORWARD
); break;
382 case 0x0b4: map_key_clear(KEY_REWIND
); break;
383 case 0x0b5: map_key_clear(KEY_NEXTSONG
); break;
384 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG
); break;
385 case 0x0b7: map_key_clear(KEY_STOPCD
); break;
386 case 0x0b8: map_key_clear(KEY_EJECTCD
); break;
387 case 0x0bc: map_key_clear(KEY_MEDIA_REPEAT
); break;
389 case 0x0cd: map_key_clear(KEY_PLAYPAUSE
); break;
390 case 0x0e0: map_abs_clear(ABS_VOLUME
); break;
391 case 0x0e2: map_key_clear(KEY_MUTE
); break;
392 case 0x0e5: map_key_clear(KEY_BASSBOOST
); break;
393 case 0x0e9: map_key_clear(KEY_VOLUMEUP
); break;
394 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN
); break;
396 case 0x182: map_key_clear(KEY_BOOKMARKS
); break;
397 case 0x183: map_key_clear(KEY_CONFIG
); break;
398 case 0x184: map_key_clear(KEY_WORDPROCESSOR
); break;
399 case 0x185: map_key_clear(KEY_EDITOR
); break;
400 case 0x186: map_key_clear(KEY_SPREADSHEET
); break;
401 case 0x187: map_key_clear(KEY_GRAPHICSEDITOR
); break;
402 case 0x188: map_key_clear(KEY_PRESENTATION
); break;
403 case 0x189: map_key_clear(KEY_DATABASE
); break;
404 case 0x18a: map_key_clear(KEY_MAIL
); break;
405 case 0x18b: map_key_clear(KEY_NEWS
); break;
406 case 0x18c: map_key_clear(KEY_VOICEMAIL
); break;
407 case 0x18d: map_key_clear(KEY_ADDRESSBOOK
); break;
408 case 0x18e: map_key_clear(KEY_CALENDAR
); break;
409 case 0x191: map_key_clear(KEY_FINANCE
); break;
410 case 0x192: map_key_clear(KEY_CALC
); break;
411 case 0x194: map_key_clear(KEY_FILE
); break;
412 case 0x196: map_key_clear(KEY_WWW
); break;
413 case 0x19c: map_key_clear(KEY_LOGOFF
); break;
414 case 0x19e: map_key_clear(KEY_COFFEE
); break;
415 case 0x1a6: map_key_clear(KEY_HELP
); break;
416 case 0x1a7: map_key_clear(KEY_DOCUMENTS
); break;
417 case 0x1ab: map_key_clear(KEY_SPELLCHECK
); break;
418 case 0x1b6: map_key_clear(KEY_MEDIA
); break;
419 case 0x1b7: map_key_clear(KEY_SOUND
); break;
420 case 0x1bc: map_key_clear(KEY_MESSENGER
); break;
421 case 0x1bd: map_key_clear(KEY_INFO
); break;
422 case 0x201: map_key_clear(KEY_NEW
); break;
423 case 0x202: map_key_clear(KEY_OPEN
); break;
424 case 0x203: map_key_clear(KEY_CLOSE
); break;
425 case 0x204: map_key_clear(KEY_EXIT
); break;
426 case 0x207: map_key_clear(KEY_SAVE
); break;
427 case 0x208: map_key_clear(KEY_PRINT
); break;
428 case 0x209: map_key_clear(KEY_PROPS
); break;
429 case 0x21a: map_key_clear(KEY_UNDO
); break;
430 case 0x21b: map_key_clear(KEY_COPY
); break;
431 case 0x21c: map_key_clear(KEY_CUT
); break;
432 case 0x21d: map_key_clear(KEY_PASTE
); break;
433 case 0x21f: map_key_clear(KEY_FIND
); break;
434 case 0x221: map_key_clear(KEY_SEARCH
); break;
435 case 0x222: map_key_clear(KEY_GOTO
); break;
436 case 0x223: map_key_clear(KEY_HOMEPAGE
); break;
437 case 0x224: map_key_clear(KEY_BACK
); break;
438 case 0x225: map_key_clear(KEY_FORWARD
); break;
439 case 0x226: map_key_clear(KEY_STOP
); break;
440 case 0x227: map_key_clear(KEY_REFRESH
); break;
441 case 0x22a: map_key_clear(KEY_BOOKMARKS
); break;
442 case 0x22d: map_key_clear(KEY_ZOOMIN
); break;
443 case 0x22e: map_key_clear(KEY_ZOOMOUT
); break;
444 case 0x22f: map_key_clear(KEY_ZOOMRESET
); break;
445 case 0x233: map_key_clear(KEY_SCROLLUP
); break;
446 case 0x234: map_key_clear(KEY_SCROLLDOWN
); break;
447 case 0x238: map_rel(REL_HWHEEL
); break;
448 case 0x25f: map_key_clear(KEY_CANCEL
); break;
449 case 0x279: map_key_clear(KEY_REDO
); break;
451 case 0x289: map_key_clear(KEY_REPLY
); break;
452 case 0x28b: map_key_clear(KEY_FORWARDMAIL
); break;
453 case 0x28c: map_key_clear(KEY_SEND
); break;
455 default: goto ignore
;
459 case HID_UP_HPVENDOR
: /* Reported on a Dutch layout HP5308 */
460 set_bit(EV_REP
, input
->evbit
);
461 switch (usage
->hid
& HID_USAGE
) {
462 case 0x021: map_key_clear(KEY_PRINT
); break;
463 case 0x070: map_key_clear(KEY_HP
); break;
464 case 0x071: map_key_clear(KEY_CAMERA
); break;
465 case 0x072: map_key_clear(KEY_SOUND
); break;
466 case 0x073: map_key_clear(KEY_QUESTION
); break;
467 case 0x080: map_key_clear(KEY_EMAIL
); break;
468 case 0x081: map_key_clear(KEY_CHAT
); break;
469 case 0x082: map_key_clear(KEY_SEARCH
); break;
470 case 0x083: map_key_clear(KEY_CONNECT
); break;
471 case 0x084: map_key_clear(KEY_FINANCE
); break;
472 case 0x085: map_key_clear(KEY_SPORT
); break;
473 case 0x086: map_key_clear(KEY_SHOP
); break;
474 default: goto ignore
;
478 case HID_UP_MSVENDOR
:
481 case HID_UP_CUSTOM
: /* Reported on Logitech and Apple USB keyboards */
482 set_bit(EV_REP
, input
->evbit
);
485 case HID_UP_LOGIVENDOR
:
489 switch (usage
->hid
& HID_USAGE
) {
490 case 0xa4: map_key_clear(BTN_DEAD
); break;
491 default: goto ignore
;
497 if (field
->report_size
== 1) {
498 if (field
->report
->type
== HID_OUTPUT_REPORT
) {
505 if (field
->flags
& HID_MAIN_ITEM_RELATIVE
) {
514 if (device
->driver
->input_mapped
&& device
->driver
->input_mapped(device
,
515 hidinput
, field
, usage
, &bit
, &max
) < 0)
518 set_bit(usage
->type
, input
->evbit
);
520 while (usage
->code
<= max
&& test_and_set_bit(usage
->code
, bit
))
521 usage
->code
= find_next_zero_bit(bit
, max
+ 1, usage
->code
);
523 if (usage
->code
> max
)
527 if (usage
->type
== EV_ABS
) {
529 int a
= field
->logical_minimum
;
530 int b
= field
->logical_maximum
;
532 if ((device
->quirks
& HID_QUIRK_BADPAD
) && (usage
->code
== ABS_X
|| usage
->code
== ABS_Y
)) {
533 a
= field
->logical_minimum
= 0;
534 b
= field
->logical_maximum
= 255;
537 if (field
->application
== HID_GD_GAMEPAD
|| field
->application
== HID_GD_JOYSTICK
)
538 input_set_abs_params(input
, usage
->code
, a
, b
, (b
- a
) >> 8, (b
- a
) >> 4);
539 else input_set_abs_params(input
, usage
->code
, a
, b
, 0, 0);
543 if (usage
->type
== EV_ABS
&&
544 (usage
->hat_min
< usage
->hat_max
|| usage
->hat_dir
)) {
546 for (i
= usage
->code
; i
< usage
->code
+ 2 && i
<= max
; i
++) {
547 input_set_abs_params(input
, i
, -1, 1, 0, 0);
548 set_bit(i
, input
->absbit
);
550 if (usage
->hat_dir
&& !field
->dpad
)
551 field
->dpad
= usage
->code
;
554 /* for those devices which produce Consumer volume usage as relative,
555 * we emulate pressing volumeup/volumedown appropriate number of times
556 * in hidinput_hid_event()
558 if ((usage
->type
== EV_ABS
) && (field
->flags
& HID_MAIN_ITEM_RELATIVE
) &&
559 (usage
->code
== ABS_VOLUME
)) {
560 set_bit(KEY_VOLUMEUP
, input
->keybit
);
561 set_bit(KEY_VOLUMEDOWN
, input
->keybit
);
564 if (usage
->type
== EV_KEY
) {
565 set_bit(EV_MSC
, input
->evbit
);
566 set_bit(MSC_SCAN
, input
->mscbit
);
569 hid_resolv_event(usage
->type
, usage
->code
);
576 dbg_hid_line("IGNORED\n");
580 void hidinput_hid_event(struct hid_device
*hid
, struct hid_field
*field
, struct hid_usage
*usage
, __s32 value
)
582 struct input_dev
*input
;
583 unsigned *quirks
= &hid
->quirks
;
585 if (!field
->hidinput
)
588 input
= field
->hidinput
->input
;
593 /* handle input events for quirky devices */
594 if (hidinput_event_quirks(hid
, field
, usage
, value
))
597 if (usage
->hat_min
< usage
->hat_max
|| usage
->hat_dir
) {
598 int hat_dir
= usage
->hat_dir
;
600 hat_dir
= (value
- usage
->hat_min
) * 8 / (usage
->hat_max
- usage
->hat_min
+ 1) + 1;
601 if (hat_dir
< 0 || hat_dir
> 8) hat_dir
= 0;
602 input_event(input
, usage
->type
, usage
->code
, hid_hat_to_axis
[hat_dir
].x
);
603 input_event(input
, usage
->type
, usage
->code
+ 1, hid_hat_to_axis
[hat_dir
].y
);
607 if (usage
->hid
== (HID_UP_DIGITIZER
| 0x003c)) { /* Invert */
608 *quirks
= value
? (*quirks
| HID_QUIRK_INVERT
) : (*quirks
& ~HID_QUIRK_INVERT
);
612 if (usage
->hid
== (HID_UP_DIGITIZER
| 0x0032)) { /* InRange */
614 input_event(input
, usage
->type
, (*quirks
& HID_QUIRK_INVERT
) ? BTN_TOOL_RUBBER
: usage
->code
, 1);
617 input_event(input
, usage
->type
, usage
->code
, 0);
618 input_event(input
, usage
->type
, BTN_TOOL_RUBBER
, 0);
622 if (usage
->hid
== (HID_UP_DIGITIZER
| 0x0030) && (*quirks
& HID_QUIRK_NOTOUCH
)) { /* Pressure */
623 int a
= field
->logical_minimum
;
624 int b
= field
->logical_maximum
;
625 input_event(input
, EV_KEY
, BTN_TOUCH
, value
> a
+ ((b
- a
) >> 3));
628 if (usage
->hid
== (HID_UP_PID
| 0x83UL
)) { /* Simultaneous Effects Max */
629 dbg_hid("Maximum Effects - %d\n",value
);
633 if (usage
->hid
== (HID_UP_PID
| 0x7fUL
)) {
634 dbg_hid("PID Pool Report\n");
638 if ((usage
->type
== EV_KEY
) && (usage
->code
== 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
641 if ((usage
->type
== EV_ABS
) && (field
->flags
& HID_MAIN_ITEM_RELATIVE
) &&
642 (usage
->code
== ABS_VOLUME
)) {
643 int count
= abs(value
);
644 int direction
= value
> 0 ? KEY_VOLUMEUP
: KEY_VOLUMEDOWN
;
647 for (i
= 0; i
< count
; i
++) {
648 input_event(input
, EV_KEY
, direction
, 1);
650 input_event(input
, EV_KEY
, direction
, 0);
656 /* report the usage code as scancode if the key status has changed */
657 if (usage
->type
== EV_KEY
&& !!test_bit(usage
->code
, input
->key
) != value
)
658 input_event(input
, EV_MSC
, MSC_SCAN
, usage
->hid
);
660 input_event(input
, usage
->type
, usage
->code
, value
);
662 if ((field
->flags
& HID_MAIN_ITEM_RELATIVE
) && (usage
->type
== EV_KEY
))
663 input_event(input
, usage
->type
, usage
->code
, 0);
666 void hidinput_report_event(struct hid_device
*hid
, struct hid_report
*report
)
668 struct hid_input
*hidinput
;
670 list_for_each_entry(hidinput
, &hid
->inputs
, list
)
671 input_sync(hidinput
->input
);
673 EXPORT_SYMBOL_GPL(hidinput_report_event
);
675 int hidinput_find_field(struct hid_device
*hid
, unsigned int type
, unsigned int code
, struct hid_field
**field
)
677 struct hid_report
*report
;
680 list_for_each_entry(report
, &hid
->report_enum
[HID_OUTPUT_REPORT
].report_list
, list
) {
681 for (i
= 0; i
< report
->maxfield
; i
++) {
682 *field
= report
->field
[i
];
683 for (j
= 0; j
< (*field
)->maxusage
; j
++)
684 if ((*field
)->usage
[j
].type
== type
&& (*field
)->usage
[j
].code
== code
)
690 EXPORT_SYMBOL_GPL(hidinput_find_field
);
692 static int hidinput_open(struct input_dev
*dev
)
694 struct hid_device
*hid
= input_get_drvdata(dev
);
696 return hid
->ll_driver
->open(hid
);
699 static void hidinput_close(struct input_dev
*dev
)
701 struct hid_device
*hid
= input_get_drvdata(dev
);
703 hid
->ll_driver
->close(hid
);
707 * Register the input device; print a message.
708 * Configure the input layer interface
709 * Read all reports and initialize the absolute field values.
712 int hidinput_connect(struct hid_device
*hid
)
714 struct hid_report
*report
;
715 struct hid_input
*hidinput
= NULL
;
716 struct input_dev
*input_dev
;
718 int max_report_type
= HID_OUTPUT_REPORT
;
720 if (hid
->quirks
& HID_QUIRK_IGNORE_HIDINPUT
)
723 INIT_LIST_HEAD(&hid
->inputs
);
725 for (i
= 0; i
< hid
->maxcollection
; i
++)
726 if (hid
->collection
[i
].type
== HID_COLLECTION_APPLICATION
||
727 hid
->collection
[i
].type
== HID_COLLECTION_PHYSICAL
)
728 if (IS_INPUT_APPLICATION(hid
->collection
[i
].usage
))
731 if (i
== hid
->maxcollection
&& (hid
->quirks
& HID_QUIRK_HIDINPUT
) == 0)
734 if (hid
->quirks
& HID_QUIRK_SKIP_OUTPUT_REPORTS
)
735 max_report_type
= HID_INPUT_REPORT
;
737 for (k
= HID_INPUT_REPORT
; k
<= max_report_type
; k
++)
738 list_for_each_entry(report
, &hid
->report_enum
[k
].report_list
, list
) {
740 if (!report
->maxfield
)
744 hidinput
= kzalloc(sizeof(*hidinput
), GFP_KERNEL
);
745 input_dev
= input_allocate_device();
746 if (!hidinput
|| !input_dev
) {
748 input_free_device(input_dev
);
749 err_hid("Out of memory during hid input probe");
753 input_set_drvdata(input_dev
, hid
);
755 hid
->ll_driver
->hidinput_input_event
;
756 input_dev
->open
= hidinput_open
;
757 input_dev
->close
= hidinput_close
;
758 input_dev
->setkeycode
= hidinput_setkeycode
;
759 input_dev
->getkeycode
= hidinput_getkeycode
;
761 input_dev
->name
= hid
->name
;
762 input_dev
->phys
= hid
->phys
;
763 input_dev
->uniq
= hid
->uniq
;
764 input_dev
->id
.bustype
= hid
->bus
;
765 input_dev
->id
.vendor
= hid
->vendor
;
766 input_dev
->id
.product
= hid
->product
;
767 input_dev
->id
.version
= hid
->version
;
768 input_dev
->dev
.parent
= hid
->dev
.parent
;
769 hidinput
->input
= input_dev
;
770 list_add_tail(&hidinput
->list
, &hid
->inputs
);
773 for (i
= 0; i
< report
->maxfield
; i
++)
774 for (j
= 0; j
< report
->field
[i
]->maxusage
; j
++)
775 hidinput_configure_usage(hidinput
, report
->field
[i
],
776 report
->field
[i
]->usage
+ j
);
778 if (hid
->quirks
& HID_QUIRK_MULTI_INPUT
) {
779 /* This will leave hidinput NULL, so that it
780 * allocates another one if we have more inputs on
781 * the same interface. Some devices (e.g. Happ's
782 * UGCI) cram a lot of unrelated inputs into the
784 hidinput
->report
= report
;
785 if (input_register_device(hidinput
->input
))
791 if (hidinput
&& input_register_device(hidinput
->input
))
797 input_free_device(hidinput
->input
);
800 /* unwind the ones we already registered */
801 hidinput_disconnect(hid
);
805 EXPORT_SYMBOL_GPL(hidinput_connect
);
807 void hidinput_disconnect(struct hid_device
*hid
)
809 struct hid_input
*hidinput
, *next
;
811 list_for_each_entry_safe(hidinput
, next
, &hid
->inputs
, list
) {
812 list_del(&hidinput
->list
);
813 input_unregister_device(hidinput
->input
);
817 EXPORT_SYMBOL_GPL(hidinput_disconnect
);