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Input: HID - fix potential out-of-bound array access
[linux-2.6/x86.git] / drivers / usb / input / hid-input.c
blob7208839f2dbf24d50c15516b7d99971980f8160d
1 /*
2 * $Id: hid-input.c,v 1.2 2002/04/23 00:59:25 rdamazio Exp $
3 *
4 * Copyright (c) 2000-2001 Vojtech Pavlik
5 *
6 * USB HID to Linux Input mapping
7 */
8
9 /*
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 *
24 * Should you need to contact me, the author, you can do so either by
25 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
26 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
27 */
28
29 #include <linux/module.h>
30 #include <linux/slab.h>
31 #include <linux/kernel.h>
32 #include <linux/usb/input.h>
33
34 #undef DEBUG
35
36 #include "hid.h"
37
38 #define unk KEY_UNKNOWN
39
40 static const unsigned char hid_keyboard[256] = {
41 0, 0, 0, 0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
42 50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44, 2, 3,
43 4, 5, 6, 7, 8, 9, 10, 11, 28, 1, 14, 15, 57, 12, 13, 26,
44 27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
45 65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
46 105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
47 72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190,
48 191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113,
49 115,114,unk,unk,unk,121,unk, 89, 93,124, 92, 94, 95,unk,unk,unk,
50 122,123, 90, 91, 85,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 unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
53 unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
54 unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
55 29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
56 150,158,159,128,136,177,178,176,142,152,173,140,unk,unk,unk,unk
57 };
58
59 static const struct {
60 __s32 x;
61 __s32 y;
62 } hid_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
63
64 #define map_abs(c) do { usage->code = c; usage->type = EV_ABS; bit = input->absbit; max = ABS_MAX; } while (0)
65 #define map_rel(c) do { usage->code = c; usage->type = EV_REL; bit = input->relbit; max = REL_MAX; } while (0)
66 #define map_key(c) do { usage->code = c; usage->type = EV_KEY; bit = input->keybit; max = KEY_MAX; } while (0)
67 #define map_led(c) do { usage->code = c; usage->type = EV_LED; bit = input->ledbit; max = LED_MAX; } while (0)
68 #define map_ff(c) do { usage->code = c; usage->type = EV_FF; bit = input->ffbit; max = FF_MAX; } while (0)
69
70 #define map_abs_clear(c) do { map_abs(c); clear_bit(c, bit); } while (0)
71 #define map_key_clear(c) do { map_key(c); clear_bit(c, bit); } while (0)
72 #define map_ff_effect(c) do { set_bit(c, input->ffbit); } while (0)
73
74 #ifdef CONFIG_USB_HIDINPUT_POWERBOOK
75
76 struct hidinput_key_translation {
77 u16 from;
78 u16 to;
79 u8 flags;
80 };
81
82 #define POWERBOOK_FLAG_FKEY 0x01
83
84 static struct hidinput_key_translation powerbook_fn_keys[] = {
85 { KEY_BACKSPACE, KEY_DELETE },
86 { KEY_F1, KEY_BRIGHTNESSDOWN, POWERBOOK_FLAG_FKEY },
87 { KEY_F2, KEY_BRIGHTNESSUP, POWERBOOK_FLAG_FKEY },
88 { KEY_F3, KEY_MUTE, POWERBOOK_FLAG_FKEY },
89 { KEY_F4, KEY_VOLUMEDOWN, POWERBOOK_FLAG_FKEY },
90 { KEY_F5, KEY_VOLUMEUP, POWERBOOK_FLAG_FKEY },
91 { KEY_F6, KEY_NUMLOCK, POWERBOOK_FLAG_FKEY },
92 { KEY_F7, KEY_SWITCHVIDEOMODE, POWERBOOK_FLAG_FKEY },
93 { KEY_F8, KEY_KBDILLUMTOGGLE, POWERBOOK_FLAG_FKEY },
94 { KEY_F9, KEY_KBDILLUMDOWN, POWERBOOK_FLAG_FKEY },
95 { KEY_F10, KEY_KBDILLUMUP, POWERBOOK_FLAG_FKEY },
96 { KEY_UP, KEY_PAGEUP },
97 { KEY_DOWN, KEY_PAGEDOWN },
98 { KEY_LEFT, KEY_HOME },
99 { KEY_RIGHT, KEY_END },
100 { }
101 };
102
103 static struct hidinput_key_translation powerbook_numlock_keys[] = {
104 { KEY_J, KEY_KP1 },
105 { KEY_K, KEY_KP2 },
106 { KEY_L, KEY_KP3 },
107 { KEY_U, KEY_KP4 },
108 { KEY_I, KEY_KP5 },
109 { KEY_O, KEY_KP6 },
110 { KEY_7, KEY_KP7 },
111 { KEY_8, KEY_KP8 },
112 { KEY_9, KEY_KP9 },
113 { KEY_M, KEY_KP0 },
114 { KEY_DOT, KEY_KPDOT },
115 { KEY_SLASH, KEY_KPPLUS },
116 { KEY_SEMICOLON, KEY_KPMINUS },
117 { KEY_P, KEY_KPASTERISK },
118 { KEY_MINUS, KEY_KPEQUAL },
119 { KEY_0, KEY_KPSLASH },
120 { KEY_F6, KEY_NUMLOCK },
121 { KEY_KPENTER, KEY_KPENTER },
122 { KEY_BACKSPACE, KEY_BACKSPACE },
123 { }
124 };
125
126 static int usbhid_pb_fnmode = 1;
127 module_param_named(pb_fnmode, usbhid_pb_fnmode, int, 0644);
128 MODULE_PARM_DESC(pb_fnmode,
129 "Mode of fn key on PowerBooks (0 = disabled, 1 = fkeyslast, 2 = fkeysfirst)");
130
131 static struct hidinput_key_translation *find_translation(struct hidinput_key_translation *table, u16 from)
132 {
133 struct hidinput_key_translation *trans;
134
135 /* Look for the translation */
136 for (trans = table; trans->from; trans++)
137 if (trans->from == from)
138 return trans;
139
140 return NULL;
141 }
142
143 static int hidinput_pb_event(struct hid_device *hid, struct input_dev *input,
144 struct hid_usage *usage, __s32 value)
145 {
146 struct hidinput_key_translation *trans;
147
148 if (usage->code == KEY_FN) {
149 if (value) hid->quirks |= HID_QUIRK_POWERBOOK_FN_ON;
150 else hid->quirks &= ~HID_QUIRK_POWERBOOK_FN_ON;
151
152 input_event(input, usage->type, usage->code, value);
153
154 return 1;
155 }
156
157 if (usbhid_pb_fnmode) {
158 int do_translate;
159
160 trans = find_translation(powerbook_fn_keys, usage->code);
161 if (trans) {
162 if (test_bit(usage->code, hid->pb_pressed_fn))
163 do_translate = 1;
164 else if (trans->flags & POWERBOOK_FLAG_FKEY)
165 do_translate =
166 (usbhid_pb_fnmode == 2 && (hid->quirks & HID_QUIRK_POWERBOOK_FN_ON)) ||
167 (usbhid_pb_fnmode == 1 && !(hid->quirks & HID_QUIRK_POWERBOOK_FN_ON));
168 else
169 do_translate = (hid->quirks & HID_QUIRK_POWERBOOK_FN_ON);
170
171 if (do_translate) {
172 if (value)
173 set_bit(usage->code, hid->pb_pressed_fn);
174 else
175 clear_bit(usage->code, hid->pb_pressed_fn);
176
177 input_event(input, usage->type, trans->to, value);
178
179 return 1;
180 }
181 }
182
183 if (test_bit(usage->code, hid->pb_pressed_numlock) ||
184 test_bit(LED_NUML, input->led)) {
185 trans = find_translation(powerbook_numlock_keys, usage->code);
186
187 if (trans) {
188 if (value)
189 set_bit(usage->code, hid->pb_pressed_numlock);
190 else
191 clear_bit(usage->code, hid->pb_pressed_numlock);
192
193 input_event(input, usage->type, trans->to, value);
194 }
195
196 return 1;
197 }
198 }
199
200 return 0;
201 }
202
203 static void hidinput_pb_setup(struct input_dev *input)
204 {
205 struct hidinput_key_translation *trans;
206
207 set_bit(KEY_NUMLOCK, input->keybit);
208
209 /* Enable all needed keys */
210 for (trans = powerbook_fn_keys; trans->from; trans++)
211 set_bit(trans->to, input->keybit);
212
213 for (trans = powerbook_numlock_keys; trans->from; trans++)
214 set_bit(trans->to, input->keybit);
215 }
216 #else
217 static inline int hidinput_pb_event(struct hid_device *hid, struct input_dev *input,
218 struct hid_usage *usage, __s32 value)
219 {
220 return 0;
221 }
222
223 static inline void hidinput_pb_setup(struct input_dev *input)
224 {
225 }
226 #endif
227
228 static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
229 struct hid_usage *usage)
230 {
231 struct input_dev *input = hidinput->input;
232 struct hid_device *device = input->private;
233 int max = 0, code;
234 unsigned long *bit = NULL;
235
236 field->hidinput = hidinput;
237
238 #ifdef DEBUG
239 printk(KERN_DEBUG "Mapping: ");
240 resolv_usage(usage->hid);
241 printk(" ---> ");
242 #endif
243
244 if (field->flags & HID_MAIN_ITEM_CONSTANT)
245 goto ignore;
246
247 switch (usage->hid & HID_USAGE_PAGE) {
248
249 case HID_UP_UNDEFINED:
250 goto ignore;
251
252 case HID_UP_KEYBOARD:
253
254 set_bit(EV_REP, input->evbit);
255
256 if ((usage->hid & HID_USAGE) < 256) {
257 if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
258 map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
259 } else
260 map_key(KEY_UNKNOWN);
261
262 break;
263
264 case HID_UP_BUTTON:
265
266 code = ((usage->hid - 1) & 0xf);
267
268 switch (field->application) {
269 case HID_GD_MOUSE:
270 case HID_GD_POINTER: code += 0x110; break;
271 case HID_GD_JOYSTICK: code += 0x120; break;
272 case HID_GD_GAMEPAD: code += 0x130; break;
273 default:
274 switch (field->physical) {
275 case HID_GD_MOUSE:
276 case HID_GD_POINTER: code += 0x110; break;
277 case HID_GD_JOYSTICK: code += 0x120; break;
278 case HID_GD_GAMEPAD: code += 0x130; break;
279 default: code += 0x100;
280 }
281 }
282
283 map_key(code);
284 break;
285
286
287 case HID_UP_SIMULATION:
288
289 switch (usage->hid & 0xffff) {
290 case 0xba: map_abs(ABS_RUDDER); break;
291 case 0xbb: map_abs(ABS_THROTTLE); break;
292 case 0xc4: map_abs(ABS_GAS); break;
293 case 0xc5: map_abs(ABS_BRAKE); break;
294 case 0xc8: map_abs(ABS_WHEEL); break;
295 default: goto ignore;
296 }
297 break;
298
299 case HID_UP_GENDESK:
300
301 if ((usage->hid & 0xf0) == 0x80) { /* SystemControl */
302 switch (usage->hid & 0xf) {
303 case 0x1: map_key_clear(KEY_POWER); break;
304 case 0x2: map_key_clear(KEY_SLEEP); break;
305 case 0x3: map_key_clear(KEY_WAKEUP); break;
306 default: goto unknown;
307 }
308 break;
309 }
310
311 if ((usage->hid & 0xf0) == 0x90) { /* D-pad */
312 switch (usage->hid) {
313 case HID_GD_UP: usage->hat_dir = 1; break;
314 case HID_GD_DOWN: usage->hat_dir = 5; break;
315 case HID_GD_RIGHT: usage->hat_dir = 3; break;
316 case HID_GD_LEFT: usage->hat_dir = 7; break;
317 default: goto unknown;
318 }
319 if (field->dpad) {
320 map_abs(field->dpad);
321 goto ignore;
322 }
323 map_abs(ABS_HAT0X);
324 break;
325 }
326
327 switch (usage->hid) {
328
329 /* These usage IDs map directly to the usage codes. */
330 case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
331 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
332 case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL:
333 if (field->flags & HID_MAIN_ITEM_RELATIVE)
334 map_rel(usage->hid & 0xf);
335 else
336 map_abs(usage->hid & 0xf);
337 break;
338
339 case HID_GD_HATSWITCH:
340 usage->hat_min = field->logical_minimum;
341 usage->hat_max = field->logical_maximum;
342 map_abs(ABS_HAT0X);
343 break;
344
345 case HID_GD_START: map_key_clear(BTN_START); break;
346 case HID_GD_SELECT: map_key_clear(BTN_SELECT); break;
347
348 default: goto unknown;
349 }
350
351 break;
352
353 case HID_UP_LED:
354 if (((usage->hid - 1) & 0xffff) >= LED_MAX)
355 goto ignore;
356 map_led((usage->hid - 1) & 0xffff);
357 break;
358
359 case HID_UP_DIGITIZER:
360
361 switch (usage->hid & 0xff) {
362
363 case 0x30: /* TipPressure */
364 if (!test_bit(BTN_TOUCH, input->keybit)) {
365 device->quirks |= HID_QUIRK_NOTOUCH;
366 set_bit(EV_KEY, input->evbit);
367 set_bit(BTN_TOUCH, input->keybit);
368 }
369
370 map_abs_clear(ABS_PRESSURE);
371 break;
372
373 case 0x32: /* InRange */
374 switch (field->physical & 0xff) {
375 case 0x21: map_key(BTN_TOOL_MOUSE); break;
376 case 0x22: map_key(BTN_TOOL_FINGER); break;
377 default: map_key(BTN_TOOL_PEN); break;
378 }
379 break;
380
381 case 0x3c: /* Invert */
382 map_key_clear(BTN_TOOL_RUBBER);
383 break;
384
385 case 0x33: /* Touch */
386 case 0x42: /* TipSwitch */
387 case 0x43: /* TipSwitch2 */
388 device->quirks &= ~HID_QUIRK_NOTOUCH;
389 map_key_clear(BTN_TOUCH);
390 break;
391
392 case 0x44: /* BarrelSwitch */
393 map_key_clear(BTN_STYLUS);
394 break;
395
396 default: goto unknown;
397 }
398 break;
399
400 case HID_UP_CONSUMER: /* USB HUT v1.1, pages 56-62 */
401
402 switch (usage->hid & HID_USAGE) {
403 case 0x000: goto ignore;
404 case 0x034: map_key_clear(KEY_SLEEP); break;
405 case 0x036: map_key_clear(BTN_MISC); break;
406 case 0x045: map_key_clear(KEY_RADIO); break;
407 case 0x08a: map_key_clear(KEY_WWW); break;
408 case 0x08d: map_key_clear(KEY_PROGRAM); break;
409 case 0x095: map_key_clear(KEY_HELP); break;
410 case 0x09c: map_key_clear(KEY_CHANNELUP); break;
411 case 0x09d: map_key_clear(KEY_CHANNELDOWN); break;
412 case 0x0b0: map_key_clear(KEY_PLAY); break;
413 case 0x0b1: map_key_clear(KEY_PAUSE); break;
414 case 0x0b2: map_key_clear(KEY_RECORD); break;
415 case 0x0b3: map_key_clear(KEY_FASTFORWARD); break;
416 case 0x0b4: map_key_clear(KEY_REWIND); break;
417 case 0x0b5: map_key_clear(KEY_NEXTSONG); break;
418 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG); break;
419 case 0x0b7: map_key_clear(KEY_STOPCD); break;
420 case 0x0b8: map_key_clear(KEY_EJECTCD); break;
421 case 0x0cd: map_key_clear(KEY_PLAYPAUSE); break;
422 case 0x0e0: map_abs_clear(ABS_VOLUME); break;
423 case 0x0e2: map_key_clear(KEY_MUTE); break;
424 case 0x0e5: map_key_clear(KEY_BASSBOOST); break;
425 case 0x0e9: map_key_clear(KEY_VOLUMEUP); break;
426 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN); break;
427 case 0x183: map_key_clear(KEY_CONFIG); break;
428 case 0x18a: map_key_clear(KEY_MAIL); break;
429 case 0x192: map_key_clear(KEY_CALC); break;
430 case 0x194: map_key_clear(KEY_FILE); break;
431 case 0x1a7: map_key_clear(KEY_DOCUMENTS); break;
432 case 0x201: map_key_clear(KEY_NEW); break;
433 case 0x207: map_key_clear(KEY_SAVE); break;
434 case 0x208: map_key_clear(KEY_PRINT); break;
435 case 0x209: map_key_clear(KEY_PROPS); break;
436 case 0x21a: map_key_clear(KEY_UNDO); break;
437 case 0x21b: map_key_clear(KEY_COPY); break;
438 case 0x21c: map_key_clear(KEY_CUT); break;
439 case 0x21d: map_key_clear(KEY_PASTE); break;
440 case 0x221: map_key_clear(KEY_FIND); break;
441 case 0x223: map_key_clear(KEY_HOMEPAGE); break;
442 case 0x224: map_key_clear(KEY_BACK); break;
443 case 0x225: map_key_clear(KEY_FORWARD); break;
444 case 0x226: map_key_clear(KEY_STOP); break;
445 case 0x227: map_key_clear(KEY_REFRESH); break;
446 case 0x22a: map_key_clear(KEY_BOOKMARKS); break;
447 case 0x233: map_key_clear(KEY_SCROLLUP); break;
448 case 0x234: map_key_clear(KEY_SCROLLDOWN); break;
449 case 0x238: map_rel(REL_HWHEEL); break;
450 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;
454
455 /* Reported on a Cherry Cymotion keyboard */
456 case 0x301: map_key_clear(KEY_PROG1); break;
457 case 0x302: map_key_clear(KEY_PROG2); break;
458 case 0x303: map_key_clear(KEY_PROG3); break;
459
460 default: goto ignore;
461 }
462 break;
463
464 case HID_UP_HPVENDOR: /* Reported on a Dutch layout HP5308 */
465
466 set_bit(EV_REP, input->evbit);
467 switch (usage->hid & HID_USAGE) {
468 case 0x021: map_key_clear(KEY_PRINT); break;
469 case 0x070: map_key_clear(KEY_HP); break;
470 case 0x071: map_key_clear(KEY_CAMERA); break;
471 case 0x072: map_key_clear(KEY_SOUND); break;
472 case 0x073: map_key_clear(KEY_QUESTION); break;
473 case 0x080: map_key_clear(KEY_EMAIL); break;
474 case 0x081: map_key_clear(KEY_CHAT); break;
475 case 0x082: map_key_clear(KEY_SEARCH); break;
476 case 0x083: map_key_clear(KEY_CONNECT); break;
477 case 0x084: map_key_clear(KEY_FINANCE); break;
478 case 0x085: map_key_clear(KEY_SPORT); break;
479 case 0x086: map_key_clear(KEY_SHOP); break;
480 default: goto ignore;
481 }
482 break;
483
484 case HID_UP_MSVENDOR:
485 goto ignore;
486
487 case HID_UP_CUSTOM: /* Reported on Logitech and Powerbook USB keyboards */
488
489 set_bit(EV_REP, input->evbit);
490 switch(usage->hid & HID_USAGE) {
491 case 0x003:
492 /* The fn key on Apple PowerBooks */
493 map_key_clear(KEY_FN);
494 hidinput_pb_setup(input);
495 break;
496
497 default: goto ignore;
498 }
499 break;
500
501 case HID_UP_LOGIVENDOR: /* Reported on Logitech Ultra X Media Remote */
502
503 set_bit(EV_REP, input->evbit);
504 switch(usage->hid & HID_USAGE) {
505 case 0x004: map_key_clear(KEY_AGAIN); break;
506 case 0x00d: map_key_clear(KEY_HOME); break;
507 case 0x024: map_key_clear(KEY_SHUFFLE); break;
508 case 0x025: map_key_clear(KEY_TV); break;
509 case 0x026: map_key_clear(KEY_MENU); break;
510 case 0x031: map_key_clear(KEY_AUDIO); break;
511 case 0x032: map_key_clear(KEY_TEXT); break;
512 case 0x033: map_key_clear(KEY_LAST); break;
513 case 0x047: map_key_clear(KEY_MP3); break;
514 case 0x048: map_key_clear(KEY_DVD); break;
515 case 0x049: map_key_clear(KEY_MEDIA); break;
516 case 0x04a: map_key_clear(KEY_VIDEO); break;
517 case 0x04b: map_key_clear(KEY_ANGLE); break;
518 case 0x04c: map_key_clear(KEY_LANGUAGE); break;
519 case 0x04d: map_key_clear(KEY_SUBTITLE); break;
520 case 0x051: map_key_clear(KEY_RED); break;
521 case 0x052: map_key_clear(KEY_CLOSE); break;
522 default: goto ignore;
523 }
524 break;
525
526 case HID_UP_PID:
527
528 set_bit(EV_FF, input->evbit);
529 switch(usage->hid & HID_USAGE) {
530 case 0x26: map_ff_effect(FF_CONSTANT); goto ignore;
531 case 0x27: map_ff_effect(FF_RAMP); goto ignore;
532 case 0x28: map_ff_effect(FF_CUSTOM); goto ignore;
533 case 0x30: map_ff_effect(FF_SQUARE); map_ff_effect(FF_PERIODIC); goto ignore;
534 case 0x31: map_ff_effect(FF_SINE); map_ff_effect(FF_PERIODIC); goto ignore;
535 case 0x32: map_ff_effect(FF_TRIANGLE); map_ff_effect(FF_PERIODIC); goto ignore;
536 case 0x33: map_ff_effect(FF_SAW_UP); map_ff_effect(FF_PERIODIC); goto ignore;
537 case 0x34: map_ff_effect(FF_SAW_DOWN); map_ff_effect(FF_PERIODIC); goto ignore;
538 case 0x40: map_ff_effect(FF_SPRING); goto ignore;
539 case 0x41: map_ff_effect(FF_DAMPER); goto ignore;
540 case 0x42: map_ff_effect(FF_INERTIA); goto ignore;
541 case 0x43: map_ff_effect(FF_FRICTION); goto ignore;
542 case 0x7e: map_ff(FF_GAIN); break;
543 case 0x83: input->ff_effects_max = field->value[0]; goto ignore;
544 case 0x98: map_ff(FF_AUTOCENTER); break;
545 case 0xa4: map_key_clear(BTN_DEAD); break;
546 default: goto ignore;
547 }
548 break;
549
550 default:
551 unknown:
552 if (field->report_size == 1) {
553 if (field->report->type == HID_OUTPUT_REPORT) {
554 map_led(LED_MISC);
555 break;
556 }
557 map_key(BTN_MISC);
558 break;
559 }
560 if (field->flags & HID_MAIN_ITEM_RELATIVE) {
561 map_rel(REL_MISC);
562 break;
563 }
564 map_abs(ABS_MISC);
565 break;
566 }
567
568 if (device->quirks & HID_QUIRK_MIGHTYMOUSE) {
569 if (usage->hid == HID_GD_Z)
570 map_rel(REL_HWHEEL);
571 else if (usage->code == BTN_1)
572 map_key(BTN_2);
573 else if (usage->code == BTN_2)
574 map_key(BTN_1);
575 }
576
577 if ((device->quirks & (HID_QUIRK_2WHEEL_MOUSE_HACK_7 | HID_QUIRK_2WHEEL_MOUSE_HACK_5)) &&
578 (usage->type == EV_REL) && (usage->code == REL_WHEEL))
579 set_bit(REL_HWHEEL, bit);
580
581 if (((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_5) && (usage->hid == 0x00090005))
582 || ((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_7) && (usage->hid == 0x00090007)))
583 goto ignore;
584
585 set_bit(usage->type, input->evbit);
586
587 while (usage->code <= max && test_and_set_bit(usage->code, bit))
588 usage->code = find_next_zero_bit(bit, max + 1, usage->code);
589
590 if (usage->code > max)
591 goto ignore;
592
593
594 if (usage->type == EV_ABS) {
595
596 int a = field->logical_minimum;
597 int b = field->logical_maximum;
598
599 if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
600 a = field->logical_minimum = 0;
601 b = field->logical_maximum = 255;
602 }
603
604 if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
605 input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
606 else input_set_abs_params(input, usage->code, a, b, 0, 0);
607
608 }
609
610 if (usage->type == EV_ABS &&
611 (usage->hat_min < usage->hat_max || usage->hat_dir)) {
612 int i;
613 for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
614 input_set_abs_params(input, i, -1, 1, 0, 0);
615 set_bit(i, input->absbit);
616 }
617 if (usage->hat_dir && !field->dpad)
618 field->dpad = usage->code;
619 }
620
621 #ifdef DEBUG
622 resolv_event(usage->type, usage->code);
623 printk("\n");
624 #endif
625 return;
626
627 ignore:
628 #ifdef DEBUG
629 printk("IGNORED\n");
630 #endif
631 return;
632 }
633
634 void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value, struct pt_regs *regs)
635 {
636 struct input_dev *input;
637 int *quirks = &hid->quirks;
638
639 if (!field->hidinput)
640 return;
641
642 input = field->hidinput->input;
643
644 input_regs(input, regs);
645
646 if (!usage->type)
647 return;
648
649 if (((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_5) && (usage->hid == 0x00090005))
650 || ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_7) && (usage->hid == 0x00090007))) {
651 if (value) hid->quirks |= HID_QUIRK_2WHEEL_MOUSE_HACK_ON;
652 else hid->quirks &= ~HID_QUIRK_2WHEEL_MOUSE_HACK_ON;
653 return;
654 }
655
656 if ((hid->quirks & HID_QUIRK_INVERT_HWHEEL) && (usage->code == REL_HWHEEL)) {
657 input_event(input, usage->type, usage->code, -value);
658 return;
659 }
660
661 if ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_ON) && (usage->code == REL_WHEEL)) {
662 input_event(input, usage->type, REL_HWHEEL, value);
663 return;
664 }
665
666 if ((hid->quirks & HID_QUIRK_POWERBOOK_HAS_FN) && hidinput_pb_event(hid, input, usage, value))
667 return;
668
669 if (usage->hat_min < usage->hat_max || usage->hat_dir) {
670 int hat_dir = usage->hat_dir;
671 if (!hat_dir)
672 hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
673 if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
674 input_event(input, usage->type, usage->code , hid_hat_to_axis[hat_dir].x);
675 input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
676 return;
677 }
678
679 if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */
680 *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
681 return;
682 }
683
684 if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */
685 if (value) {
686 input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
687 return;
688 }
689 input_event(input, usage->type, usage->code, 0);
690 input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
691 return;
692 }
693
694 if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */
695 int a = field->logical_minimum;
696 int b = field->logical_maximum;
697 input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3));
698 }
699
700 if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
701 input->ff_effects_max = value;
702 dbg("Maximum Effects - %d",input->ff_effects_max);
703 return;
704 }
705
706 if (usage->hid == (HID_UP_PID | 0x7fUL)) {
707 dbg("PID Pool Report\n");
708 return;
709 }
710
711 if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
712 return;
713
714 input_event(input, usage->type, usage->code, value);
715
716 if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY))
717 input_event(input, usage->type, usage->code, 0);
718 }
719
720 void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
721 {
722 struct hid_input *hidinput;
723
724 list_for_each_entry(hidinput, &hid->inputs, list)
725 input_sync(hidinput->input);
726 }
727
728 static int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
729 {
730 struct hid_report *report;
731 int i, j;
732
733 list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
734 for (i = 0; i < report->maxfield; i++) {
735 *field = report->field[i];
736 for (j = 0; j < (*field)->maxusage; j++)
737 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
738 return j;
739 }
740 }
741 return -1;
742 }
743
744 static int hidinput_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
745 {
746 struct hid_device *hid = dev->private;
747 struct hid_field *field;
748 int offset;
749
750 if (type == EV_FF)
751 return hid_ff_event(hid, dev, type, code, value);
752
753 if (type != EV_LED)
754 return -1;
755
756 if ((offset = hidinput_find_field(hid, type, code, &field)) == -1) {
757 warn("event field not found");
758 return -1;
759 }
760
761 hid_set_field(field, offset, value);
762 hid_submit_report(hid, field->report, USB_DIR_OUT);
763
764 return 0;
765 }
766
767 static int hidinput_open(struct input_dev *dev)
768 {
769 struct hid_device *hid = dev->private;
770 return hid_open(hid);
771 }
772
773 static void hidinput_close(struct input_dev *dev)
774 {
775 struct hid_device *hid = dev->private;
776 hid_close(hid);
777 }
778
779 /*
780 * Register the input device; print a message.
781 * Configure the input layer interface
782 * Read all reports and initialize the absolute field values.
783 */
784
785 int hidinput_connect(struct hid_device *hid)
786 {
787 struct usb_device *dev = hid->dev;
788 struct hid_report *report;
789 struct hid_input *hidinput = NULL;
790 struct input_dev *input_dev;
791 int i, j, k;
792
793 INIT_LIST_HEAD(&hid->inputs);
794
795 for (i = 0; i < hid->maxcollection; i++)
796 if (hid->collection[i].type == HID_COLLECTION_APPLICATION ||
797 hid->collection[i].type == HID_COLLECTION_PHYSICAL)
798 if (IS_INPUT_APPLICATION(hid->collection[i].usage))
799 break;
800
801 if (i == hid->maxcollection)
802 return -1;
803
804 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++)
805 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
806
807 if (!report->maxfield)
808 continue;
809
810 if (!hidinput) {
811 hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
812 input_dev = input_allocate_device();
813 if (!hidinput || !input_dev) {
814 kfree(hidinput);
815 input_free_device(input_dev);
816 err("Out of memory during hid input probe");
817 return -1;
818 }
819
820 input_dev->private = hid;
821 input_dev->event = hidinput_input_event;
822 input_dev->open = hidinput_open;
823 input_dev->close = hidinput_close;
824
825 input_dev->name = hid->name;
826 input_dev->phys = hid->phys;
827 input_dev->uniq = hid->uniq;
828 usb_to_input_id(dev, &input_dev->id);
829 input_dev->cdev.dev = &hid->intf->dev;
830
831 hidinput->input = input_dev;
832 list_add_tail(&hidinput->list, &hid->inputs);
833 }
834
835 for (i = 0; i < report->maxfield; i++)
836 for (j = 0; j < report->field[i]->maxusage; j++)
837 hidinput_configure_usage(hidinput, report->field[i],
838 report->field[i]->usage + j);
839
840 if (hid->quirks & HID_QUIRK_MULTI_INPUT) {
841 /* This will leave hidinput NULL, so that it
842 * allocates another one if we have more inputs on
843 * the same interface. Some devices (e.g. Happ's
844 * UGCI) cram a lot of unrelated inputs into the
845 * same interface. */
846 hidinput->report = report;
847 input_register_device(hidinput->input);
848 hidinput = NULL;
849 }
850 }
851
852 /* This only gets called when we are a single-input (most of the
853 * time). IOW, not a HID_QUIRK_MULTI_INPUT. The hid_ff_init() is
854 * only useful in this case, and not for multi-input quirks. */
855 if (hidinput) {
856 hid_ff_init(hid);
857 input_register_device(hidinput->input);
858 }
859
860 return 0;
861 }
862
863 void hidinput_disconnect(struct hid_device *hid)
864 {
865 struct hid_input *hidinput, *next;
866
867 list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
868 list_del(&hidinput->list);
869 input_unregister_device(hidinput->input);
870 kfree(hidinput);
871 }
872 }
x86 "subsystem" repository