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HID: move cherry quirks
[linux-2.6/mini2440.git] / drivers / hid / hid-input.c
blob1d2d0827820ce13dcf6ad14f7c0b26a29fdba923
1 /*
2 * Copyright (c) 2000-2001 Vojtech Pavlik
3 * Copyright (c) 2006-2007 Jiri Kosina
4 *
5 * HID to Linux Input mapping
6 */
7
8 /*
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.
13 *
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.
18 *
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
22 *
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
26 */
27
28 #include <linux/module.h>
29 #include <linux/slab.h>
30 #include <linux/kernel.h>
31
32 #include <linux/hid.h>
33 #include <linux/hid-debug.h>
34
35 #define unk KEY_UNKNOWN
36
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
54 };
55
56 static const struct {
57 __s32 x;
58 __s32 y;
59 } hid_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
60
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))
65
66 #define map_abs_clear(c) hid_map_usage_clear(hidinput, usage, &bit, \
67 &max, EV_ABS, (c))
68 #define map_key_clear(c) hid_map_usage_clear(hidinput, usage, &bit, \
69 &max, EV_KEY, (c))
70
71 static inline int match_scancode(int code, int scancode)
72 {
73 if (scancode == 0)
74 return 1;
75 return ((code & (HID_USAGE_PAGE | HID_USAGE)) == scancode);
76 }
77
78 static inline int match_keycode(int code, int keycode)
79 {
80 if (keycode == 0)
81 return 1;
82 return (code == keycode);
83 }
84
85 static struct hid_usage *hidinput_find_key(struct hid_device *hid,
86 int scancode, int keycode)
87 {
88 int i, j, k;
89 struct hid_report *report;
90 struct hid_usage *usage;
91
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))
100 return usage;
101 }
102 }
103 }
104 }
105 return NULL;
106 }
107
108 static int hidinput_getkeycode(struct input_dev *dev, int scancode,
109 int *keycode)
110 {
111 struct hid_device *hid = input_get_drvdata(dev);
112 struct hid_usage *usage;
113
114 usage = hidinput_find_key(hid, scancode, 0);
115 if (usage) {
116 *keycode = usage->code;
117 return 0;
118 }
119 return -EINVAL;
120 }
121
122 static int hidinput_setkeycode(struct input_dev *dev, int scancode,
123 int keycode)
124 {
125 struct hid_device *hid = input_get_drvdata(dev);
126 struct hid_usage *usage;
127 int old_keycode;
128
129 if (keycode < 0 || keycode > KEY_MAX)
130 return -EINVAL;
131
132 usage = hidinput_find_key(hid, scancode, 0);
133 if (usage) {
134 old_keycode = usage->code;
135 usage->code = keycode;
136
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
141 * by another key */
142 if (hidinput_find_key (hid, 0, old_keycode))
143 set_bit(old_keycode, dev->keybit);
144
145 return 0;
146 }
147
148 return -EINVAL;
149 }
150
151
152 static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
153 struct hid_usage *usage)
154 {
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;
159
160 field->hidinput = hidinput;
161
162 dbg_hid("Mapping: ");
163 hid_resolv_usage(usage->hid);
164 dbg_hid_line(" ---> ");
165
166 if (field->flags & HID_MAIN_ITEM_CONSTANT)
167 goto ignore;
168
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] ");
173 goto ignore;
174 }
175
176 /* handle input mappings for quirky devices */
177 ret = hidinput_mapping_quirks(usage, hidinput, &bit, &max);
178 if (ret)
179 goto mapped;
180
181 if (device->driver->input_mapping) {
182 int ret = device->driver->input_mapping(device, hidinput, field,
183 usage, &bit, &max);
184 if (ret > 0)
185 goto mapped;
186 if (ret < 0)
187 goto ignore;
188 }
189
190 switch (usage->hid & HID_USAGE_PAGE) {
191 case HID_UP_UNDEFINED:
192 goto ignore;
193
194 case HID_UP_KEYBOARD:
195 set_bit(EV_REP, input->evbit);
196
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]);
200 } else
201 map_key(KEY_UNKNOWN);
202
203 break;
204
205 case HID_UP_BUTTON:
206 code = ((usage->hid - 1) & 0xf);
207
208 switch (field->application) {
209 case HID_GD_MOUSE:
210 case HID_GD_POINTER: code += 0x110; break;
211 case HID_GD_JOYSTICK: code += 0x120; break;
212 case HID_GD_GAMEPAD: code += 0x130; break;
213 default:
214 switch (field->physical) {
215 case HID_GD_MOUSE:
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;
220 }
221 }
222
223 map_key(code);
224 break;
225
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;
234 }
235 break;
236
237 case HID_UP_GENDESK:
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;
244 }
245 break;
246 }
247
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;
255 }
256 if (field->dpad) {
257 map_abs(field->dpad);
258 goto ignore;
259 }
260 map_abs(ABS_HAT0X);
261 break;
262 }
263
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);
271 else
272 map_abs(usage->hid & 0xf);
273 break;
274
275 case HID_GD_HATSWITCH:
276 usage->hat_min = field->logical_minimum;
277 usage->hat_max = field->logical_maximum;
278 map_abs(ABS_HAT0X);
279 break;
280
281 case HID_GD_START: map_key_clear(BTN_START); break;
282 case HID_GD_SELECT: map_key_clear(BTN_SELECT); break;
283
284 default: goto unknown;
285 }
286
287 break;
288
289 case HID_UP_LED:
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" */
302
303 default: goto ignore;
304 }
305 break;
306
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);
314 }
315 map_abs_clear(ABS_PRESSURE);
316 break;
317
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;
323 }
324 break;
325
326 case 0x3c: /* Invert */
327 map_key_clear(BTN_TOOL_RUBBER);
328 break;
329
330 case 0x33: /* Touch */
331 case 0x42: /* TipSwitch */
332 case 0x43: /* TipSwitch2 */
333 device->quirks &= ~HID_QUIRK_NOTOUCH;
334 map_key_clear(BTN_TOUCH);
335 break;
336
337 case 0x44: /* BarrelSwitch */
338 map_key_clear(BTN_STYLUS);
339 break;
340
341 default: goto unknown;
342 }
343 break;
344
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;
350
351 case 0x040: map_key_clear(KEY_MENU); break;
352 case 0x045: map_key_clear(KEY_RADIO); break;
353
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;
373
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;
377
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;
388
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;
395
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;
450
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 default: goto ignore;
456 }
457 break;
458
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;
475 }
476 break;
477
478 case HID_UP_MSVENDOR:
479 goto ignore;
480
481 case HID_UP_CUSTOM: /* Reported on Logitech and Apple USB keyboards */
482 set_bit(EV_REP, input->evbit);
483 goto ignore;
484
485 case HID_UP_LOGIVENDOR:
486 goto ignore;
487
488 case HID_UP_PID:
489 switch (usage->hid & HID_USAGE) {
490 case 0xa4: map_key_clear(BTN_DEAD); break;
491 default: goto ignore;
492 }
493 break;
494
495 default:
496 unknown:
497 if (field->report_size == 1) {
498 if (field->report->type == HID_OUTPUT_REPORT) {
499 map_led(LED_MISC);
500 break;
501 }
502 map_key(BTN_MISC);
503 break;
504 }
505 if (field->flags & HID_MAIN_ITEM_RELATIVE) {
506 map_rel(REL_MISC);
507 break;
508 }
509 map_abs(ABS_MISC);
510 break;
511 }
512
513 mapped:
514 if (device->driver->input_mapped && device->driver->input_mapped(device,
515 hidinput, field, usage, &bit, &max) < 0)
516 goto ignore;
517
518 set_bit(usage->type, input->evbit);
519
520 while (usage->code <= max && test_and_set_bit(usage->code, bit))
521 usage->code = find_next_zero_bit(bit, max + 1, usage->code);
522
523 if (usage->code > max)
524 goto ignore;
525
526
527 if (usage->type == EV_ABS) {
528
529 int a = field->logical_minimum;
530 int b = field->logical_maximum;
531
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;
535 }
536
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);
540
541 }
542
543 if (usage->type == EV_ABS &&
544 (usage->hat_min < usage->hat_max || usage->hat_dir)) {
545 int i;
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);
549 }
550 if (usage->hat_dir && !field->dpad)
551 field->dpad = usage->code;
552 }
553
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()
557 */
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);
562 }
563
564 if (usage->type == EV_KEY) {
565 set_bit(EV_MSC, input->evbit);
566 set_bit(MSC_SCAN, input->mscbit);
567 }
568
569 hid_resolv_event(usage->type, usage->code);
570
571 dbg_hid_line("\n");
572
573 return;
574
575 ignore:
576 dbg_hid_line("IGNORED\n");
577 return;
578 }
579
580 void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
581 {
582 struct input_dev *input;
583 unsigned *quirks = &hid->quirks;
584
585 if (!field->hidinput)
586 return;
587
588 input = field->hidinput->input;
589
590 if (!usage->type)
591 return;
592
593 /* handle input events for quirky devices */
594 if (hidinput_event_quirks(hid, field, usage, value))
595 return;
596
597 if (usage->hat_min < usage->hat_max || usage->hat_dir) {
598 int hat_dir = usage->hat_dir;
599 if (!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);
604 return;
605 }
606
607 if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */
608 *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
609 return;
610 }
611
612 if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */
613 if (value) {
614 input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
615 return;
616 }
617 input_event(input, usage->type, usage->code, 0);
618 input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
619 return;
620 }
621
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));
626 }
627
628 if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
629 dbg_hid("Maximum Effects - %d\n",value);
630 return;
631 }
632
633 if (usage->hid == (HID_UP_PID | 0x7fUL)) {
634 dbg_hid("PID Pool Report\n");
635 return;
636 }
637
638 if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
639 return;
640
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;
645 int i;
646
647 for (i = 0; i < count; i++) {
648 input_event(input, EV_KEY, direction, 1);
649 input_sync(input);
650 input_event(input, EV_KEY, direction, 0);
651 input_sync(input);
652 }
653 return;
654 }
655
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);
659
660 input_event(input, usage->type, usage->code, value);
661
662 if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY))
663 input_event(input, usage->type, usage->code, 0);
664 }
665
666 void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
667 {
668 struct hid_input *hidinput;
669
670 list_for_each_entry(hidinput, &hid->inputs, list)
671 input_sync(hidinput->input);
672 }
673 EXPORT_SYMBOL_GPL(hidinput_report_event);
674
675 int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
676 {
677 struct hid_report *report;
678 int i, j;
679
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)
685 return j;
686 }
687 }
688 return -1;
689 }
690 EXPORT_SYMBOL_GPL(hidinput_find_field);
691
692 static int hidinput_open(struct input_dev *dev)
693 {
694 struct hid_device *hid = input_get_drvdata(dev);
695
696 return hid->ll_driver->open(hid);
697 }
698
699 static void hidinput_close(struct input_dev *dev)
700 {
701 struct hid_device *hid = input_get_drvdata(dev);
702
703 hid->ll_driver->close(hid);
704 }
705
706 /*
707 * Register the input device; print a message.
708 * Configure the input layer interface
709 * Read all reports and initialize the absolute field values.
710 */
711
712 int hidinput_connect(struct hid_device *hid)
713 {
714 struct hid_report *report;
715 struct hid_input *hidinput = NULL;
716 struct input_dev *input_dev;
717 int i, j, k;
718 int max_report_type = HID_OUTPUT_REPORT;
719
720 if (hid->quirks & HID_QUIRK_IGNORE_HIDINPUT)
721 return -1;
722
723 INIT_LIST_HEAD(&hid->inputs);
724
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))
729 break;
730
731 if (i == hid->maxcollection && (hid->quirks & HID_QUIRK_HIDINPUT) == 0)
732 return -1;
733
734 if (hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
735 max_report_type = HID_INPUT_REPORT;
736
737 for (k = HID_INPUT_REPORT; k <= max_report_type; k++)
738 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
739
740 if (!report->maxfield)
741 continue;
742
743 if (!hidinput) {
744 hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
745 input_dev = input_allocate_device();
746 if (!hidinput || !input_dev) {
747 kfree(hidinput);
748 input_free_device(input_dev);
749 err_hid("Out of memory during hid input probe");
750 goto out_unwind;
751 }
752
753 input_set_drvdata(input_dev, hid);
754 input_dev->event =
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;
760
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);
771 }
772
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);
777
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
783 * same interface. */
784 hidinput->report = report;
785 if (input_register_device(hidinput->input))
786 goto out_cleanup;
787 hidinput = NULL;
788 }
789 }
790
791 if (hidinput && input_register_device(hidinput->input))
792 goto out_cleanup;
793
794 return 0;
795
796 out_cleanup:
797 input_free_device(hidinput->input);
798 kfree(hidinput);
799 out_unwind:
800 /* unwind the ones we already registered */
801 hidinput_disconnect(hid);
802
803 return -1;
804 }
805 EXPORT_SYMBOL_GPL(hidinput_connect);
806
807 void hidinput_disconnect(struct hid_device *hid)
808 {
809 struct hid_input *hidinput, *next;
810
811 list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
812 list_del(&hidinput->list);
813 input_unregister_device(hidinput->input);
814 kfree(hidinput);
815 }
816 }
817 EXPORT_SYMBOL_GPL(hidinput_disconnect);
818
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