Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
[linux-2.6.git] / drivers / hid / hid-input.c
1 /*
2  *  Copyright (c) 2000-2001 Vojtech Pavlik
3  *  Copyright (c) 2006-2010 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(unsigned int code, unsigned int scancode)
72 {
73         if (scancode == 0)
74                 return 1;
75
76         return (code & (HID_USAGE_PAGE | HID_USAGE)) == scancode;
77 }
78
79 static inline int match_keycode(unsigned int code, unsigned int keycode)
80 {
81         if (keycode == 0)
82                 return 1;
83
84         return code == keycode;
85 }
86
87 static struct hid_usage *hidinput_find_key(struct hid_device *hid,
88                                            unsigned int scancode,
89                                            unsigned int keycode)
90 {
91         int i, j, k;
92         struct hid_report *report;
93         struct hid_usage *usage;
94
95         for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
96                 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
97                         for (i = 0; i < report->maxfield; i++) {
98                                 for ( j = 0; j < report->field[i]->maxusage; j++) {
99                                         usage = report->field[i]->usage + j;
100                                         if (usage->type == EV_KEY &&
101                                                 match_scancode(usage->hid, scancode) &&
102                                                 match_keycode(usage->code, keycode))
103                                                 return usage;
104                                 }
105                         }
106                 }
107         }
108         return NULL;
109 }
110
111 static int hidinput_getkeycode(struct input_dev *dev,
112                                unsigned int scancode, unsigned int *keycode)
113 {
114         struct hid_device *hid = input_get_drvdata(dev);
115         struct hid_usage *usage;
116
117         usage = hidinput_find_key(hid, scancode, 0);
118         if (usage) {
119                 *keycode = usage->code;
120                 return 0;
121         }
122         return -EINVAL;
123 }
124
125 static int hidinput_setkeycode(struct input_dev *dev,
126                                unsigned int scancode, unsigned int keycode)
127 {
128         struct hid_device *hid = input_get_drvdata(dev);
129         struct hid_usage *usage;
130         int old_keycode;
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;
158         unsigned long *bit = NULL;
159
160         field->hidinput = hidinput;
161
162         if (field->flags & HID_MAIN_ITEM_CONSTANT)
163                 goto ignore;
164
165         /* only LED usages are supported in output fields */
166         if (field->report_type == HID_OUTPUT_REPORT &&
167                         (usage->hid & HID_USAGE_PAGE) != HID_UP_LED) {
168                 goto ignore;
169         }
170
171         if (device->driver->input_mapping) {
172                 int ret = device->driver->input_mapping(device, hidinput, field,
173                                 usage, &bit, &max);
174                 if (ret > 0)
175                         goto mapped;
176                 if (ret < 0)
177                         goto ignore;
178         }
179
180         switch (usage->hid & HID_USAGE_PAGE) {
181         case HID_UP_UNDEFINED:
182                 goto ignore;
183
184         case HID_UP_KEYBOARD:
185                 set_bit(EV_REP, input->evbit);
186
187                 if ((usage->hid & HID_USAGE) < 256) {
188                         if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
189                         map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
190                 } else
191                         map_key(KEY_UNKNOWN);
192
193                 break;
194
195         case HID_UP_BUTTON:
196                 code = ((usage->hid - 1) & HID_USAGE);
197
198                 switch (field->application) {
199                 case HID_GD_MOUSE:
200                 case HID_GD_POINTER:  code += 0x110; break;
201                 case HID_GD_JOYSTICK:
202                                 if (code <= 0xf)
203                                         code += BTN_JOYSTICK;
204                                 else
205                                         code += BTN_TRIGGER_HAPPY;
206                                 break;
207                 case HID_GD_GAMEPAD:  code += 0x130; break;
208                 default:
209                         switch (field->physical) {
210                         case HID_GD_MOUSE:
211                         case HID_GD_POINTER:  code += 0x110; break;
212                         case HID_GD_JOYSTICK: code += 0x120; break;
213                         case HID_GD_GAMEPAD:  code += 0x130; break;
214                         default:              code += 0x100;
215                         }
216                 }
217
218                 map_key(code);
219                 break;
220
221         case HID_UP_SIMULATION:
222                 switch (usage->hid & 0xffff) {
223                 case 0xba: map_abs(ABS_RUDDER);   break;
224                 case 0xbb: map_abs(ABS_THROTTLE); break;
225                 case 0xc4: map_abs(ABS_GAS);      break;
226                 case 0xc5: map_abs(ABS_BRAKE);    break;
227                 case 0xc8: map_abs(ABS_WHEEL);    break;
228                 default:   goto ignore;
229                 }
230                 break;
231
232         case HID_UP_GENDESK:
233                 if ((usage->hid & 0xf0) == 0x80) {      /* SystemControl */
234                         switch (usage->hid & 0xf) {
235                         case 0x1: map_key_clear(KEY_POWER);  break;
236                         case 0x2: map_key_clear(KEY_SLEEP);  break;
237                         case 0x3: map_key_clear(KEY_WAKEUP); break;
238                         default: goto unknown;
239                         }
240                         break;
241                 }
242
243                 if ((usage->hid & 0xf0) == 0x90) {      /* D-pad */
244                         switch (usage->hid) {
245                         case HID_GD_UP:    usage->hat_dir = 1; break;
246                         case HID_GD_DOWN:  usage->hat_dir = 5; break;
247                         case HID_GD_RIGHT: usage->hat_dir = 3; break;
248                         case HID_GD_LEFT:  usage->hat_dir = 7; break;
249                         default: goto unknown;
250                         }
251                         if (field->dpad) {
252                                 map_abs(field->dpad);
253                                 goto ignore;
254                         }
255                         map_abs(ABS_HAT0X);
256                         break;
257                 }
258
259                 switch (usage->hid) {
260                 /* These usage IDs map directly to the usage codes. */
261                 case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
262                 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
263                 case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL:
264                         if (field->flags & HID_MAIN_ITEM_RELATIVE)
265                                 map_rel(usage->hid & 0xf);
266                         else
267                                 map_abs(usage->hid & 0xf);
268                         break;
269
270                 case HID_GD_HATSWITCH:
271                         usage->hat_min = field->logical_minimum;
272                         usage->hat_max = field->logical_maximum;
273                         map_abs(ABS_HAT0X);
274                         break;
275
276                 case HID_GD_START:      map_key_clear(BTN_START);       break;
277                 case HID_GD_SELECT:     map_key_clear(BTN_SELECT);      break;
278
279                 default: goto unknown;
280                 }
281
282                 break;
283
284         case HID_UP_LED:
285                 switch (usage->hid & 0xffff) {                /* HID-Value:                   */
286                 case 0x01:  map_led (LED_NUML);     break;    /*   "Num Lock"                 */
287                 case 0x02:  map_led (LED_CAPSL);    break;    /*   "Caps Lock"                */
288                 case 0x03:  map_led (LED_SCROLLL);  break;    /*   "Scroll Lock"              */
289                 case 0x04:  map_led (LED_COMPOSE);  break;    /*   "Compose"                  */
290                 case 0x05:  map_led (LED_KANA);     break;    /*   "Kana"                     */
291                 case 0x27:  map_led (LED_SLEEP);    break;    /*   "Stand-By"                 */
292                 case 0x4c:  map_led (LED_SUSPEND);  break;    /*   "System Suspend"           */
293                 case 0x09:  map_led (LED_MUTE);     break;    /*   "Mute"                     */
294                 case 0x4b:  map_led (LED_MISC);     break;    /*   "Generic Indicator"        */
295                 case 0x19:  map_led (LED_MAIL);     break;    /*   "Message Waiting"          */
296                 case 0x4d:  map_led (LED_CHARGING); break;    /*   "External Power Connected" */
297
298                 default: goto ignore;
299                 }
300                 break;
301
302         case HID_UP_DIGITIZER:
303                 switch (usage->hid & 0xff) {
304                 case 0x00: /* Undefined */
305                         goto ignore;
306
307                 case 0x30: /* TipPressure */
308                         if (!test_bit(BTN_TOUCH, input->keybit)) {
309                                 device->quirks |= HID_QUIRK_NOTOUCH;
310                                 set_bit(EV_KEY, input->evbit);
311                                 set_bit(BTN_TOUCH, input->keybit);
312                         }
313                         map_abs_clear(ABS_PRESSURE);
314                         break;
315
316                 case 0x32: /* InRange */
317                         switch (field->physical & 0xff) {
318                         case 0x21: map_key(BTN_TOOL_MOUSE); break;
319                         case 0x22: map_key(BTN_TOOL_FINGER); break;
320                         default: map_key(BTN_TOOL_PEN); break;
321                         }
322                         break;
323
324                 case 0x3c: /* Invert */
325                         map_key_clear(BTN_TOOL_RUBBER);
326                         break;
327
328                 case 0x33: /* Touch */
329                 case 0x42: /* TipSwitch */
330                 case 0x43: /* TipSwitch2 */
331                         device->quirks &= ~HID_QUIRK_NOTOUCH;
332                         map_key_clear(BTN_TOUCH);
333                         break;
334
335                 case 0x44: /* BarrelSwitch */
336                         map_key_clear(BTN_STYLUS);
337                         break;
338
339                 default:  goto unknown;
340                 }
341                 break;
342
343         case HID_UP_CONSUMER:   /* USB HUT v1.1, pages 56-62 */
344                 switch (usage->hid & HID_USAGE) {
345                 case 0x000: goto ignore;
346                 case 0x034: map_key_clear(KEY_SLEEP);           break;
347                 case 0x036: map_key_clear(BTN_MISC);            break;
348
349                 case 0x040: map_key_clear(KEY_MENU);            break;
350                 case 0x045: map_key_clear(KEY_RADIO);           break;
351
352                 case 0x083: map_key_clear(KEY_LAST);            break;
353                 case 0x088: map_key_clear(KEY_PC);              break;
354                 case 0x089: map_key_clear(KEY_TV);              break;
355                 case 0x08a: map_key_clear(KEY_WWW);             break;
356                 case 0x08b: map_key_clear(KEY_DVD);             break;
357                 case 0x08c: map_key_clear(KEY_PHONE);           break;
358                 case 0x08d: map_key_clear(KEY_PROGRAM);         break;
359                 case 0x08e: map_key_clear(KEY_VIDEOPHONE);      break;
360                 case 0x08f: map_key_clear(KEY_GAMES);           break;
361                 case 0x090: map_key_clear(KEY_MEMO);            break;
362                 case 0x091: map_key_clear(KEY_CD);              break;
363                 case 0x092: map_key_clear(KEY_VCR);             break;
364                 case 0x093: map_key_clear(KEY_TUNER);           break;
365                 case 0x094: map_key_clear(KEY_EXIT);            break;
366                 case 0x095: map_key_clear(KEY_HELP);            break;
367                 case 0x096: map_key_clear(KEY_TAPE);            break;
368                 case 0x097: map_key_clear(KEY_TV2);             break;
369                 case 0x098: map_key_clear(KEY_SAT);             break;
370                 case 0x09a: map_key_clear(KEY_PVR);             break;
371
372                 case 0x09c: map_key_clear(KEY_CHANNELUP);       break;
373                 case 0x09d: map_key_clear(KEY_CHANNELDOWN);     break;
374                 case 0x0a0: map_key_clear(KEY_VCR2);            break;
375
376                 case 0x0b0: map_key_clear(KEY_PLAY);            break;
377                 case 0x0b1: map_key_clear(KEY_PAUSE);           break;
378                 case 0x0b2: map_key_clear(KEY_RECORD);          break;
379                 case 0x0b3: map_key_clear(KEY_FASTFORWARD);     break;
380                 case 0x0b4: map_key_clear(KEY_REWIND);          break;
381                 case 0x0b5: map_key_clear(KEY_NEXTSONG);        break;
382                 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG);    break;
383                 case 0x0b7: map_key_clear(KEY_STOPCD);          break;
384                 case 0x0b8: map_key_clear(KEY_EJECTCD);         break;
385                 case 0x0bc: map_key_clear(KEY_MEDIA_REPEAT);    break;
386
387                 case 0x0cd: map_key_clear(KEY_PLAYPAUSE);       break;
388                 case 0x0e0: map_abs_clear(ABS_VOLUME);          break;
389                 case 0x0e2: map_key_clear(KEY_MUTE);            break;
390                 case 0x0e5: map_key_clear(KEY_BASSBOOST);       break;
391                 case 0x0e9: map_key_clear(KEY_VOLUMEUP);        break;
392                 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN);      break;
393
394                 case 0x182: map_key_clear(KEY_BOOKMARKS);       break;
395                 case 0x183: map_key_clear(KEY_CONFIG);          break;
396                 case 0x184: map_key_clear(KEY_WORDPROCESSOR);   break;
397                 case 0x185: map_key_clear(KEY_EDITOR);          break;
398                 case 0x186: map_key_clear(KEY_SPREADSHEET);     break;
399                 case 0x187: map_key_clear(KEY_GRAPHICSEDITOR);  break;
400                 case 0x188: map_key_clear(KEY_PRESENTATION);    break;
401                 case 0x189: map_key_clear(KEY_DATABASE);        break;
402                 case 0x18a: map_key_clear(KEY_MAIL);            break;
403                 case 0x18b: map_key_clear(KEY_NEWS);            break;
404                 case 0x18c: map_key_clear(KEY_VOICEMAIL);       break;
405                 case 0x18d: map_key_clear(KEY_ADDRESSBOOK);     break;
406                 case 0x18e: map_key_clear(KEY_CALENDAR);        break;
407                 case 0x191: map_key_clear(KEY_FINANCE);         break;
408                 case 0x192: map_key_clear(KEY_CALC);            break;
409                 case 0x194: map_key_clear(KEY_FILE);            break;
410                 case 0x196: map_key_clear(KEY_WWW);             break;
411                 case 0x199: map_key_clear(KEY_CHAT);            break;
412                 case 0x19c: map_key_clear(KEY_LOGOFF);          break;
413                 case 0x19e: map_key_clear(KEY_COFFEE);          break;
414                 case 0x1a6: map_key_clear(KEY_HELP);            break;
415                 case 0x1a7: map_key_clear(KEY_DOCUMENTS);       break;
416                 case 0x1ab: map_key_clear(KEY_SPELLCHECK);      break;
417                 case 0x1b6: map_key_clear(KEY_MEDIA);           break;
418                 case 0x1b7: map_key_clear(KEY_SOUND);           break;
419                 case 0x1bc: map_key_clear(KEY_MESSENGER);       break;
420                 case 0x1bd: map_key_clear(KEY_INFO);            break;
421                 case 0x201: map_key_clear(KEY_NEW);             break;
422                 case 0x202: map_key_clear(KEY_OPEN);            break;
423                 case 0x203: map_key_clear(KEY_CLOSE);           break;
424                 case 0x204: map_key_clear(KEY_EXIT);            break;
425                 case 0x207: map_key_clear(KEY_SAVE);            break;
426                 case 0x208: map_key_clear(KEY_PRINT);           break;
427                 case 0x209: map_key_clear(KEY_PROPS);           break;
428                 case 0x21a: map_key_clear(KEY_UNDO);            break;
429                 case 0x21b: map_key_clear(KEY_COPY);            break;
430                 case 0x21c: map_key_clear(KEY_CUT);             break;
431                 case 0x21d: map_key_clear(KEY_PASTE);           break;
432                 case 0x21f: map_key_clear(KEY_FIND);            break;
433                 case 0x221: map_key_clear(KEY_SEARCH);          break;
434                 case 0x222: map_key_clear(KEY_GOTO);            break;
435                 case 0x223: map_key_clear(KEY_HOMEPAGE);        break;
436                 case 0x224: map_key_clear(KEY_BACK);            break;
437                 case 0x225: map_key_clear(KEY_FORWARD);         break;
438                 case 0x226: map_key_clear(KEY_STOP);            break;
439                 case 0x227: map_key_clear(KEY_REFRESH);         break;
440                 case 0x22a: map_key_clear(KEY_BOOKMARKS);       break;
441                 case 0x22d: map_key_clear(KEY_ZOOMIN);          break;
442                 case 0x22e: map_key_clear(KEY_ZOOMOUT);         break;
443                 case 0x22f: map_key_clear(KEY_ZOOMRESET);       break;
444                 case 0x233: map_key_clear(KEY_SCROLLUP);        break;
445                 case 0x234: map_key_clear(KEY_SCROLLDOWN);      break;
446                 case 0x238: map_rel(REL_HWHEEL);                break;
447                 case 0x25f: map_key_clear(KEY_CANCEL);          break;
448                 case 0x279: map_key_clear(KEY_REDO);            break;
449
450                 case 0x289: map_key_clear(KEY_REPLY);           break;
451                 case 0x28b: map_key_clear(KEY_FORWARDMAIL);     break;
452                 case 0x28c: map_key_clear(KEY_SEND);            break;
453
454                 default:    goto ignore;
455                 }
456                 break;
457
458         case HID_UP_HPVENDOR:   /* Reported on a Dutch layout HP5308 */
459                 set_bit(EV_REP, input->evbit);
460                 switch (usage->hid & HID_USAGE) {
461                 case 0x021: map_key_clear(KEY_PRINT);           break;
462                 case 0x070: map_key_clear(KEY_HP);              break;
463                 case 0x071: map_key_clear(KEY_CAMERA);          break;
464                 case 0x072: map_key_clear(KEY_SOUND);           break;
465                 case 0x073: map_key_clear(KEY_QUESTION);        break;
466                 case 0x080: map_key_clear(KEY_EMAIL);           break;
467                 case 0x081: map_key_clear(KEY_CHAT);            break;
468                 case 0x082: map_key_clear(KEY_SEARCH);          break;
469                 case 0x083: map_key_clear(KEY_CONNECT);         break;
470                 case 0x084: map_key_clear(KEY_FINANCE);         break;
471                 case 0x085: map_key_clear(KEY_SPORT);           break;
472                 case 0x086: map_key_clear(KEY_SHOP);            break;
473                 default:    goto ignore;
474                 }
475                 break;
476
477         case HID_UP_MSVENDOR:
478                 goto ignore;
479
480         case HID_UP_CUSTOM: /* Reported on Logitech and Apple USB keyboards */
481                 set_bit(EV_REP, input->evbit);
482                 goto ignore;
483
484         case HID_UP_LOGIVENDOR:
485                 goto ignore;
486
487         case HID_UP_PID:
488                 switch (usage->hid & HID_USAGE) {
489                 case 0xa4: map_key_clear(BTN_DEAD);     break;
490                 default: goto ignore;
491                 }
492                 break;
493
494         default:
495         unknown:
496                 if (field->report_size == 1) {
497                         if (field->report->type == HID_OUTPUT_REPORT) {
498                                 map_led(LED_MISC);
499                                 break;
500                         }
501                         map_key(BTN_MISC);
502                         break;
503                 }
504                 if (field->flags & HID_MAIN_ITEM_RELATIVE) {
505                         map_rel(REL_MISC);
506                         break;
507                 }
508                 map_abs(ABS_MISC);
509                 break;
510         }
511
512 mapped:
513         if (device->driver->input_mapped && device->driver->input_mapped(device,
514                                 hidinput, field, usage, &bit, &max) < 0)
515                 goto ignore;
516
517         set_bit(usage->type, input->evbit);
518
519         while (usage->code <= max && test_and_set_bit(usage->code, bit))
520                 usage->code = find_next_zero_bit(bit, max + 1, usage->code);
521
522         if (usage->code > max)
523                 goto ignore;
524
525
526         if (usage->type == EV_ABS) {
527
528                 int a = field->logical_minimum;
529                 int b = field->logical_maximum;
530
531                 if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
532                         a = field->logical_minimum = 0;
533                         b = field->logical_maximum = 255;
534                 }
535
536                 if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
537                         input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
538                 else    input_set_abs_params(input, usage->code, a, b, 0, 0);
539
540                 /* use a larger default input buffer for MT devices */
541                 if (usage->code == ABS_MT_POSITION_X && input->hint_events_per_packet == 0)
542                         input_set_events_per_packet(input, 60);
543         }
544
545         if (usage->type == EV_ABS &&
546             (usage->hat_min < usage->hat_max || usage->hat_dir)) {
547                 int i;
548                 for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
549                         input_set_abs_params(input, i, -1, 1, 0, 0);
550                         set_bit(i, input->absbit);
551                 }
552                 if (usage->hat_dir && !field->dpad)
553                         field->dpad = usage->code;
554         }
555
556         /* for those devices which produce Consumer volume usage as relative,
557          * we emulate pressing volumeup/volumedown appropriate number of times
558          * in hidinput_hid_event()
559          */
560         if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
561                         (usage->code == ABS_VOLUME)) {
562                 set_bit(KEY_VOLUMEUP, input->keybit);
563                 set_bit(KEY_VOLUMEDOWN, input->keybit);
564         }
565
566         if (usage->type == EV_KEY) {
567                 set_bit(EV_MSC, input->evbit);
568                 set_bit(MSC_SCAN, input->mscbit);
569         }
570
571 ignore:
572         return;
573
574 }
575
576 void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
577 {
578         struct input_dev *input;
579         unsigned *quirks = &hid->quirks;
580
581         if (!field->hidinput)
582                 return;
583
584         input = field->hidinput->input;
585
586         if (!usage->type)
587                 return;
588
589         if (usage->hat_min < usage->hat_max || usage->hat_dir) {
590                 int hat_dir = usage->hat_dir;
591                 if (!hat_dir)
592                         hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
593                 if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
594                 input_event(input, usage->type, usage->code    , hid_hat_to_axis[hat_dir].x);
595                 input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
596                 return;
597         }
598
599         if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */
600                 *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
601                 return;
602         }
603
604         if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */
605                 if (value) {
606                         input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
607                         return;
608                 }
609                 input_event(input, usage->type, usage->code, 0);
610                 input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
611                 return;
612         }
613
614         if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */
615                 int a = field->logical_minimum;
616                 int b = field->logical_maximum;
617                 input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3));
618         }
619
620         if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
621                 dbg_hid("Maximum Effects - %d\n",value);
622                 return;
623         }
624
625         if (usage->hid == (HID_UP_PID | 0x7fUL)) {
626                 dbg_hid("PID Pool Report\n");
627                 return;
628         }
629
630         if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
631                 return;
632
633         if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
634                         (usage->code == ABS_VOLUME)) {
635                 int count = abs(value);
636                 int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN;
637                 int i;
638
639                 for (i = 0; i < count; i++) {
640                         input_event(input, EV_KEY, direction, 1);
641                         input_sync(input);
642                         input_event(input, EV_KEY, direction, 0);
643                         input_sync(input);
644                 }
645                 return;
646         }
647
648         /* report the usage code as scancode if the key status has changed */
649         if (usage->type == EV_KEY && !!test_bit(usage->code, input->key) != value)
650                 input_event(input, EV_MSC, MSC_SCAN, usage->hid);
651
652         input_event(input, usage->type, usage->code, value);
653
654         if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY))
655                 input_event(input, usage->type, usage->code, 0);
656 }
657
658 void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
659 {
660         struct hid_input *hidinput;
661
662         list_for_each_entry(hidinput, &hid->inputs, list)
663                 input_sync(hidinput->input);
664 }
665 EXPORT_SYMBOL_GPL(hidinput_report_event);
666
667 int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
668 {
669         struct hid_report *report;
670         int i, j;
671
672         list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
673                 for (i = 0; i < report->maxfield; i++) {
674                         *field = report->field[i];
675                         for (j = 0; j < (*field)->maxusage; j++)
676                                 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
677                                         return j;
678                 }
679         }
680         return -1;
681 }
682 EXPORT_SYMBOL_GPL(hidinput_find_field);
683
684 static int hidinput_open(struct input_dev *dev)
685 {
686         struct hid_device *hid = input_get_drvdata(dev);
687
688         return hid->ll_driver->open(hid);
689 }
690
691 static void hidinput_close(struct input_dev *dev)
692 {
693         struct hid_device *hid = input_get_drvdata(dev);
694
695         hid->ll_driver->close(hid);
696 }
697
698 /*
699  * Register the input device; print a message.
700  * Configure the input layer interface
701  * Read all reports and initialize the absolute field values.
702  */
703
704 int hidinput_connect(struct hid_device *hid, unsigned int force)
705 {
706         struct hid_report *report;
707         struct hid_input *hidinput = NULL;
708         struct input_dev *input_dev;
709         int i, j, k;
710         int max_report_type = HID_OUTPUT_REPORT;
711
712         INIT_LIST_HEAD(&hid->inputs);
713
714         if (!force) {
715                 for (i = 0; i < hid->maxcollection; i++) {
716                         struct hid_collection *col = &hid->collection[i];
717                         if (col->type == HID_COLLECTION_APPLICATION ||
718                                         col->type == HID_COLLECTION_PHYSICAL)
719                                 if (IS_INPUT_APPLICATION(col->usage))
720                                         break;
721                 }
722
723                 if (i == hid->maxcollection)
724                         return -1;
725         }
726
727         if (hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
728                 max_report_type = HID_INPUT_REPORT;
729
730         for (k = HID_INPUT_REPORT; k <= max_report_type; k++)
731                 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
732
733                         if (!report->maxfield)
734                                 continue;
735
736                         if (!hidinput) {
737                                 hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
738                                 input_dev = input_allocate_device();
739                                 if (!hidinput || !input_dev) {
740                                         kfree(hidinput);
741                                         input_free_device(input_dev);
742                                         err_hid("Out of memory during hid input probe");
743                                         goto out_unwind;
744                                 }
745
746                                 input_set_drvdata(input_dev, hid);
747                                 input_dev->event =
748                                         hid->ll_driver->hidinput_input_event;
749                                 input_dev->open = hidinput_open;
750                                 input_dev->close = hidinput_close;
751                                 input_dev->setkeycode = hidinput_setkeycode;
752                                 input_dev->getkeycode = hidinput_getkeycode;
753
754                                 input_dev->name = hid->name;
755                                 input_dev->phys = hid->phys;
756                                 input_dev->uniq = hid->uniq;
757                                 input_dev->id.bustype = hid->bus;
758                                 input_dev->id.vendor  = hid->vendor;
759                                 input_dev->id.product = hid->product;
760                                 input_dev->id.version = hid->version;
761                                 input_dev->dev.parent = hid->dev.parent;
762                                 hidinput->input = input_dev;
763                                 list_add_tail(&hidinput->list, &hid->inputs);
764                         }
765
766                         for (i = 0; i < report->maxfield; i++)
767                                 for (j = 0; j < report->field[i]->maxusage; j++)
768                                         hidinput_configure_usage(hidinput, report->field[i],
769                                                                  report->field[i]->usage + j);
770
771                         if (hid->quirks & HID_QUIRK_MULTI_INPUT) {
772                                 /* This will leave hidinput NULL, so that it
773                                  * allocates another one if we have more inputs on
774                                  * the same interface. Some devices (e.g. Happ's
775                                  * UGCI) cram a lot of unrelated inputs into the
776                                  * same interface. */
777                                 hidinput->report = report;
778                                 if (input_register_device(hidinput->input))
779                                         goto out_cleanup;
780                                 hidinput = NULL;
781                         }
782                 }
783
784         if (hidinput && input_register_device(hidinput->input))
785                 goto out_cleanup;
786
787         return 0;
788
789 out_cleanup:
790         input_free_device(hidinput->input);
791         kfree(hidinput);
792 out_unwind:
793         /* unwind the ones we already registered */
794         hidinput_disconnect(hid);
795
796         return -1;
797 }
798 EXPORT_SYMBOL_GPL(hidinput_connect);
799
800 void hidinput_disconnect(struct hid_device *hid)
801 {
802         struct hid_input *hidinput, *next;
803
804         list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
805                 list_del(&hidinput->list);
806                 input_unregister_device(hidinput->input);
807                 kfree(hidinput);
808         }
809 }
810 EXPORT_SYMBOL_GPL(hidinput_disconnect);
811