hid: egalax: Correct for device resolution report error
[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 bool match_scancode(struct hid_usage *usage,
72                            unsigned int cur_idx, unsigned int scancode)
73 {
74         return (usage->hid & (HID_USAGE_PAGE | HID_USAGE)) == scancode;
75 }
76
77 static bool match_keycode(struct hid_usage *usage,
78                           unsigned int cur_idx, unsigned int keycode)
79 {
80         /*
81          * We should exclude unmapped usages when doing lookup by keycode.
82          */
83         return (usage->type == EV_KEY && usage->code == keycode);
84 }
85
86 static bool match_index(struct hid_usage *usage,
87                         unsigned int cur_idx, unsigned int idx)
88 {
89         return cur_idx == idx;
90 }
91
92 typedef bool (*hid_usage_cmp_t)(struct hid_usage *usage,
93                                 unsigned int cur_idx, unsigned int val);
94
95 static struct hid_usage *hidinput_find_key(struct hid_device *hid,
96                                            hid_usage_cmp_t match,
97                                            unsigned int value,
98                                            unsigned int *usage_idx)
99 {
100         unsigned int i, j, k, cur_idx = 0;
101         struct hid_report *report;
102         struct hid_usage *usage;
103
104         for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
105                 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
106                         for (i = 0; i < report->maxfield; i++) {
107                                 for (j = 0; j < report->field[i]->maxusage; j++) {
108                                         usage = report->field[i]->usage + j;
109                                         if (usage->type == EV_KEY || usage->type == 0) {
110                                                 if (match(usage, cur_idx, value)) {
111                                                         if (usage_idx)
112                                                                 *usage_idx = cur_idx;
113                                                         return usage;
114                                                 }
115                                                 cur_idx++;
116                                         }
117                                 }
118                         }
119                 }
120         }
121         return NULL;
122 }
123
124 static struct hid_usage *hidinput_locate_usage(struct hid_device *hid,
125                                         const struct input_keymap_entry *ke,
126                                         unsigned int *index)
127 {
128         struct hid_usage *usage;
129         unsigned int scancode;
130
131         if (ke->flags & INPUT_KEYMAP_BY_INDEX)
132                 usage = hidinput_find_key(hid, match_index, ke->index, index);
133         else if (input_scancode_to_scalar(ke, &scancode) == 0)
134                 usage = hidinput_find_key(hid, match_scancode, scancode, index);
135         else
136                 usage = NULL;
137
138         return usage;
139 }
140
141 static int hidinput_getkeycode(struct input_dev *dev,
142                                struct input_keymap_entry *ke)
143 {
144         struct hid_device *hid = input_get_drvdata(dev);
145         struct hid_usage *usage;
146         unsigned int scancode, index;
147
148         usage = hidinput_locate_usage(hid, ke, &index);
149         if (usage) {
150                 ke->keycode = usage->type == EV_KEY ?
151                                 usage->code : KEY_RESERVED;
152                 ke->index = index;
153                 scancode = usage->hid & (HID_USAGE_PAGE | HID_USAGE);
154                 ke->len = sizeof(scancode);
155                 memcpy(ke->scancode, &scancode, sizeof(scancode));
156                 return 0;
157         }
158
159         return -EINVAL;
160 }
161
162 static int hidinput_setkeycode(struct input_dev *dev,
163                                const struct input_keymap_entry *ke,
164                                unsigned int *old_keycode)
165 {
166         struct hid_device *hid = input_get_drvdata(dev);
167         struct hid_usage *usage;
168
169         usage = hidinput_locate_usage(hid, ke, NULL);
170         if (usage) {
171                 *old_keycode = usage->type == EV_KEY ?
172                                 usage->code : KEY_RESERVED;
173                 usage->code = ke->keycode;
174
175                 clear_bit(*old_keycode, dev->keybit);
176                 set_bit(usage->code, dev->keybit);
177                 dbg_hid(KERN_DEBUG "Assigned keycode %d to HID usage code %x\n",
178                         usage->code, usage->hid);
179
180                 /*
181                  * Set the keybit for the old keycode if the old keycode is used
182                  * by another key
183                  */
184                 if (hidinput_find_key(hid, match_keycode, *old_keycode, NULL))
185                         set_bit(*old_keycode, dev->keybit);
186
187                 return 0;
188         }
189
190         return -EINVAL;
191 }
192
193
194 /**
195  * hidinput_calc_abs_res - calculate an absolute axis resolution
196  * @field: the HID report field to calculate resolution for
197  * @code: axis code
198  *
199  * The formula is:
200  *                         (logical_maximum - logical_minimum)
201  * resolution = ----------------------------------------------------------
202  *              (physical_maximum - physical_minimum) * 10 ^ unit_exponent
203  *
204  * as seen in the HID specification v1.11 6.2.2.7 Global Items.
205  *
206  * Only exponent 1 length units are processed. Centimeters are converted to
207  * inches. Degrees are converted to radians.
208  */
209 static __s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code)
210 {
211         __s32 unit_exponent = field->unit_exponent;
212         __s32 logical_extents = field->logical_maximum -
213                                         field->logical_minimum;
214         __s32 physical_extents = field->physical_maximum -
215                                         field->physical_minimum;
216         __s32 prev;
217
218         /* Check if the extents are sane */
219         if (logical_extents <= 0 || physical_extents <= 0)
220                 return 0;
221
222         /*
223          * Verify and convert units.
224          * See HID specification v1.11 6.2.2.7 Global Items for unit decoding
225          */
226         if (code == ABS_X || code == ABS_Y || code == ABS_Z) {
227                 if (field->unit == 0x11) {              /* If centimeters */
228                         /* Convert to inches */
229                         prev = logical_extents;
230                         logical_extents *= 254;
231                         if (logical_extents < prev)
232                                 return 0;
233                         unit_exponent += 2;
234                 } else if (field->unit != 0x13) {       /* If not inches */
235                         return 0;
236                 }
237         } else if (code == ABS_RX || code == ABS_RY || code == ABS_RZ) {
238                 if (field->unit == 0x14) {              /* If degrees */
239                         /* Convert to radians */
240                         prev = logical_extents;
241                         logical_extents *= 573;
242                         if (logical_extents < prev)
243                                 return 0;
244                         unit_exponent += 1;
245                 } else if (field->unit != 0x12) {       /* If not radians */
246                         return 0;
247                 }
248         } else {
249                 return 0;
250         }
251
252         /* Apply negative unit exponent */
253         for (; unit_exponent < 0; unit_exponent++) {
254                 prev = logical_extents;
255                 logical_extents *= 10;
256                 if (logical_extents < prev)
257                         return 0;
258         }
259         /* Apply positive unit exponent */
260         for (; unit_exponent > 0; unit_exponent--) {
261                 prev = physical_extents;
262                 physical_extents *= 10;
263                 if (physical_extents < prev)
264                         return 0;
265         }
266
267         /* Calculate resolution */
268         return logical_extents / physical_extents;
269 }
270
271 static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
272                                      struct hid_usage *usage)
273 {
274         struct input_dev *input = hidinput->input;
275         struct hid_device *device = input_get_drvdata(input);
276         int max = 0, code;
277         unsigned long *bit = NULL;
278
279         field->hidinput = hidinput;
280
281         if (field->flags & HID_MAIN_ITEM_CONSTANT)
282                 goto ignore;
283
284         /* only LED usages are supported in output fields */
285         if (field->report_type == HID_OUTPUT_REPORT &&
286                         (usage->hid & HID_USAGE_PAGE) != HID_UP_LED) {
287                 goto ignore;
288         }
289
290         if (device->driver->input_mapping) {
291                 int ret = device->driver->input_mapping(device, hidinput, field,
292                                 usage, &bit, &max);
293                 if (ret > 0)
294                         goto mapped;
295                 if (ret < 0)
296                         goto ignore;
297         }
298
299         switch (usage->hid & HID_USAGE_PAGE) {
300         case HID_UP_UNDEFINED:
301                 goto ignore;
302
303         case HID_UP_KEYBOARD:
304                 set_bit(EV_REP, input->evbit);
305
306                 if ((usage->hid & HID_USAGE) < 256) {
307                         if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
308                         map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
309                 } else
310                         map_key(KEY_UNKNOWN);
311
312                 break;
313
314         case HID_UP_BUTTON:
315                 code = ((usage->hid - 1) & HID_USAGE);
316
317                 switch (field->application) {
318                 case HID_GD_MOUSE:
319                 case HID_GD_POINTER:  code += 0x110; break;
320                 case HID_GD_JOYSTICK:
321                                 if (code <= 0xf)
322                                         code += BTN_JOYSTICK;
323                                 else
324                                         code += BTN_TRIGGER_HAPPY;
325                                 break;
326                 case HID_GD_GAMEPAD:  code += 0x130; break;
327                 default:
328                         switch (field->physical) {
329                         case HID_GD_MOUSE:
330                         case HID_GD_POINTER:  code += 0x110; break;
331                         case HID_GD_JOYSTICK: code += 0x120; break;
332                         case HID_GD_GAMEPAD:  code += 0x130; break;
333                         default:              code += 0x100;
334                         }
335                 }
336
337                 map_key(code);
338                 break;
339
340         case HID_UP_SIMULATION:
341                 switch (usage->hid & 0xffff) {
342                 case 0xba: map_abs(ABS_RUDDER);   break;
343                 case 0xbb: map_abs(ABS_THROTTLE); break;
344                 case 0xc4: map_abs(ABS_GAS);      break;
345                 case 0xc5: map_abs(ABS_BRAKE);    break;
346                 case 0xc8: map_abs(ABS_WHEEL);    break;
347                 default:   goto ignore;
348                 }
349                 break;
350
351         case HID_UP_GENDESK:
352                 if ((usage->hid & 0xf0) == 0x80) {      /* SystemControl */
353                         switch (usage->hid & 0xf) {
354                         case 0x1: map_key_clear(KEY_POWER);  break;
355                         case 0x2: map_key_clear(KEY_SLEEP);  break;
356                         case 0x3: map_key_clear(KEY_WAKEUP); break;
357                         default: goto unknown;
358                         }
359                         break;
360                 }
361
362                 if ((usage->hid & 0xf0) == 0x90) {      /* D-pad */
363                         switch (usage->hid) {
364                         case HID_GD_UP:    usage->hat_dir = 1; break;
365                         case HID_GD_DOWN:  usage->hat_dir = 5; break;
366                         case HID_GD_RIGHT: usage->hat_dir = 3; break;
367                         case HID_GD_LEFT:  usage->hat_dir = 7; break;
368                         default: goto unknown;
369                         }
370                         if (field->dpad) {
371                                 map_abs(field->dpad);
372                                 goto ignore;
373                         }
374                         map_abs(ABS_HAT0X);
375                         break;
376                 }
377
378                 switch (usage->hid) {
379                 /* These usage IDs map directly to the usage codes. */
380                 case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
381                 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
382                 case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL:
383                         if (field->flags & HID_MAIN_ITEM_RELATIVE)
384                                 map_rel(usage->hid & 0xf);
385                         else
386                                 map_abs(usage->hid & 0xf);
387                         break;
388
389                 case HID_GD_HATSWITCH:
390                         usage->hat_min = field->logical_minimum;
391                         usage->hat_max = field->logical_maximum;
392                         map_abs(ABS_HAT0X);
393                         break;
394
395                 case HID_GD_START:      map_key_clear(BTN_START);       break;
396                 case HID_GD_SELECT:     map_key_clear(BTN_SELECT);      break;
397
398                 default: goto unknown;
399                 }
400
401                 break;
402
403         case HID_UP_LED:
404                 switch (usage->hid & 0xffff) {                /* HID-Value:                   */
405                 case 0x01:  map_led (LED_NUML);     break;    /*   "Num Lock"                 */
406                 case 0x02:  map_led (LED_CAPSL);    break;    /*   "Caps Lock"                */
407                 case 0x03:  map_led (LED_SCROLLL);  break;    /*   "Scroll Lock"              */
408                 case 0x04:  map_led (LED_COMPOSE);  break;    /*   "Compose"                  */
409                 case 0x05:  map_led (LED_KANA);     break;    /*   "Kana"                     */
410                 case 0x27:  map_led (LED_SLEEP);    break;    /*   "Stand-By"                 */
411                 case 0x4c:  map_led (LED_SUSPEND);  break;    /*   "System Suspend"           */
412                 case 0x09:  map_led (LED_MUTE);     break;    /*   "Mute"                     */
413                 case 0x4b:  map_led (LED_MISC);     break;    /*   "Generic Indicator"        */
414                 case 0x19:  map_led (LED_MAIL);     break;    /*   "Message Waiting"          */
415                 case 0x4d:  map_led (LED_CHARGING); break;    /*   "External Power Connected" */
416
417                 default: goto ignore;
418                 }
419                 break;
420
421         case HID_UP_DIGITIZER:
422                 switch (usage->hid & 0xff) {
423                 case 0x00: /* Undefined */
424                         goto ignore;
425
426                 case 0x30: /* TipPressure */
427                         if (!test_bit(BTN_TOUCH, input->keybit)) {
428                                 device->quirks |= HID_QUIRK_NOTOUCH;
429                                 set_bit(EV_KEY, input->evbit);
430                                 set_bit(BTN_TOUCH, input->keybit);
431                         }
432                         map_abs_clear(ABS_PRESSURE);
433                         break;
434
435                 case 0x32: /* InRange */
436                         switch (field->physical & 0xff) {
437                         case 0x21: map_key(BTN_TOOL_MOUSE); break;
438                         case 0x22: map_key(BTN_TOOL_FINGER); break;
439                         default: map_key(BTN_TOOL_PEN); break;
440                         }
441                         break;
442
443                 case 0x3c: /* Invert */
444                         map_key_clear(BTN_TOOL_RUBBER);
445                         break;
446
447                 case 0x33: /* Touch */
448                 case 0x42: /* TipSwitch */
449                 case 0x43: /* TipSwitch2 */
450                         device->quirks &= ~HID_QUIRK_NOTOUCH;
451                         map_key_clear(BTN_TOUCH);
452                         break;
453
454                 case 0x44: /* BarrelSwitch */
455                         map_key_clear(BTN_STYLUS);
456                         break;
457
458                 case 0x46: /* TabletPick */
459                         map_key_clear(BTN_STYLUS2);
460                         break;
461
462                 default:  goto unknown;
463                 }
464                 break;
465
466         case HID_UP_CONSUMER:   /* USB HUT v1.1, pages 56-62 */
467                 switch (usage->hid & HID_USAGE) {
468                 case 0x000: goto ignore;
469                 case 0x034: map_key_clear(KEY_SLEEP);           break;
470                 case 0x036: map_key_clear(BTN_MISC);            break;
471
472                 case 0x040: map_key_clear(KEY_MENU);            break;
473                 case 0x045: map_key_clear(KEY_RADIO);           break;
474
475                 case 0x083: map_key_clear(KEY_LAST);            break;
476                 case 0x088: map_key_clear(KEY_PC);              break;
477                 case 0x089: map_key_clear(KEY_TV);              break;
478                 case 0x08a: map_key_clear(KEY_WWW);             break;
479                 case 0x08b: map_key_clear(KEY_DVD);             break;
480                 case 0x08c: map_key_clear(KEY_PHONE);           break;
481                 case 0x08d: map_key_clear(KEY_PROGRAM);         break;
482                 case 0x08e: map_key_clear(KEY_VIDEOPHONE);      break;
483                 case 0x08f: map_key_clear(KEY_GAMES);           break;
484                 case 0x090: map_key_clear(KEY_MEMO);            break;
485                 case 0x091: map_key_clear(KEY_CD);              break;
486                 case 0x092: map_key_clear(KEY_VCR);             break;
487                 case 0x093: map_key_clear(KEY_TUNER);           break;
488                 case 0x094: map_key_clear(KEY_EXIT);            break;
489                 case 0x095: map_key_clear(KEY_HELP);            break;
490                 case 0x096: map_key_clear(KEY_TAPE);            break;
491                 case 0x097: map_key_clear(KEY_TV2);             break;
492                 case 0x098: map_key_clear(KEY_SAT);             break;
493                 case 0x09a: map_key_clear(KEY_PVR);             break;
494
495                 case 0x09c: map_key_clear(KEY_CHANNELUP);       break;
496                 case 0x09d: map_key_clear(KEY_CHANNELDOWN);     break;
497                 case 0x0a0: map_key_clear(KEY_VCR2);            break;
498
499                 case 0x0b0: map_key_clear(KEY_PLAY);            break;
500                 case 0x0b1: map_key_clear(KEY_PAUSE);           break;
501                 case 0x0b2: map_key_clear(KEY_RECORD);          break;
502                 case 0x0b3: map_key_clear(KEY_FASTFORWARD);     break;
503                 case 0x0b4: map_key_clear(KEY_REWIND);          break;
504                 case 0x0b5: map_key_clear(KEY_NEXTSONG);        break;
505                 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG);    break;
506                 case 0x0b7: map_key_clear(KEY_STOPCD);          break;
507                 case 0x0b8: map_key_clear(KEY_EJECTCD);         break;
508                 case 0x0bc: map_key_clear(KEY_MEDIA_REPEAT);    break;
509
510                 case 0x0cd: map_key_clear(KEY_PLAYPAUSE);       break;
511                 case 0x0e0: map_abs_clear(ABS_VOLUME);          break;
512                 case 0x0e2: map_key_clear(KEY_MUTE);            break;
513                 case 0x0e5: map_key_clear(KEY_BASSBOOST);       break;
514                 case 0x0e9: map_key_clear(KEY_VOLUMEUP);        break;
515                 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN);      break;
516
517                 case 0x182: map_key_clear(KEY_BOOKMARKS);       break;
518                 case 0x183: map_key_clear(KEY_CONFIG);          break;
519                 case 0x184: map_key_clear(KEY_WORDPROCESSOR);   break;
520                 case 0x185: map_key_clear(KEY_EDITOR);          break;
521                 case 0x186: map_key_clear(KEY_SPREADSHEET);     break;
522                 case 0x187: map_key_clear(KEY_GRAPHICSEDITOR);  break;
523                 case 0x188: map_key_clear(KEY_PRESENTATION);    break;
524                 case 0x189: map_key_clear(KEY_DATABASE);        break;
525                 case 0x18a: map_key_clear(KEY_MAIL);            break;
526                 case 0x18b: map_key_clear(KEY_NEWS);            break;
527                 case 0x18c: map_key_clear(KEY_VOICEMAIL);       break;
528                 case 0x18d: map_key_clear(KEY_ADDRESSBOOK);     break;
529                 case 0x18e: map_key_clear(KEY_CALENDAR);        break;
530                 case 0x191: map_key_clear(KEY_FINANCE);         break;
531                 case 0x192: map_key_clear(KEY_CALC);            break;
532                 case 0x194: map_key_clear(KEY_FILE);            break;
533                 case 0x196: map_key_clear(KEY_WWW);             break;
534                 case 0x199: map_key_clear(KEY_CHAT);            break;
535                 case 0x19c: map_key_clear(KEY_LOGOFF);          break;
536                 case 0x19e: map_key_clear(KEY_COFFEE);          break;
537                 case 0x1a6: map_key_clear(KEY_HELP);            break;
538                 case 0x1a7: map_key_clear(KEY_DOCUMENTS);       break;
539                 case 0x1ab: map_key_clear(KEY_SPELLCHECK);      break;
540                 case 0x1b6: map_key_clear(KEY_MEDIA);           break;
541                 case 0x1b7: map_key_clear(KEY_SOUND);           break;
542                 case 0x1bc: map_key_clear(KEY_MESSENGER);       break;
543                 case 0x1bd: map_key_clear(KEY_INFO);            break;
544                 case 0x201: map_key_clear(KEY_NEW);             break;
545                 case 0x202: map_key_clear(KEY_OPEN);            break;
546                 case 0x203: map_key_clear(KEY_CLOSE);           break;
547                 case 0x204: map_key_clear(KEY_EXIT);            break;
548                 case 0x207: map_key_clear(KEY_SAVE);            break;
549                 case 0x208: map_key_clear(KEY_PRINT);           break;
550                 case 0x209: map_key_clear(KEY_PROPS);           break;
551                 case 0x21a: map_key_clear(KEY_UNDO);            break;
552                 case 0x21b: map_key_clear(KEY_COPY);            break;
553                 case 0x21c: map_key_clear(KEY_CUT);             break;
554                 case 0x21d: map_key_clear(KEY_PASTE);           break;
555                 case 0x21f: map_key_clear(KEY_FIND);            break;
556                 case 0x221: map_key_clear(KEY_SEARCH);          break;
557                 case 0x222: map_key_clear(KEY_GOTO);            break;
558                 case 0x223: map_key_clear(KEY_HOMEPAGE);        break;
559                 case 0x224: map_key_clear(KEY_BACK);            break;
560                 case 0x225: map_key_clear(KEY_FORWARD);         break;
561                 case 0x226: map_key_clear(KEY_STOP);            break;
562                 case 0x227: map_key_clear(KEY_REFRESH);         break;
563                 case 0x22a: map_key_clear(KEY_BOOKMARKS);       break;
564                 case 0x22d: map_key_clear(KEY_ZOOMIN);          break;
565                 case 0x22e: map_key_clear(KEY_ZOOMOUT);         break;
566                 case 0x22f: map_key_clear(KEY_ZOOMRESET);       break;
567                 case 0x233: map_key_clear(KEY_SCROLLUP);        break;
568                 case 0x234: map_key_clear(KEY_SCROLLDOWN);      break;
569                 case 0x238: map_rel(REL_HWHEEL);                break;
570                 case 0x25f: map_key_clear(KEY_CANCEL);          break;
571                 case 0x279: map_key_clear(KEY_REDO);            break;
572
573                 case 0x289: map_key_clear(KEY_REPLY);           break;
574                 case 0x28b: map_key_clear(KEY_FORWARDMAIL);     break;
575                 case 0x28c: map_key_clear(KEY_SEND);            break;
576
577                 default:    goto ignore;
578                 }
579                 break;
580
581         case HID_UP_HPVENDOR:   /* Reported on a Dutch layout HP5308 */
582                 set_bit(EV_REP, input->evbit);
583                 switch (usage->hid & HID_USAGE) {
584                 case 0x021: map_key_clear(KEY_PRINT);           break;
585                 case 0x070: map_key_clear(KEY_HP);              break;
586                 case 0x071: map_key_clear(KEY_CAMERA);          break;
587                 case 0x072: map_key_clear(KEY_SOUND);           break;
588                 case 0x073: map_key_clear(KEY_QUESTION);        break;
589                 case 0x080: map_key_clear(KEY_EMAIL);           break;
590                 case 0x081: map_key_clear(KEY_CHAT);            break;
591                 case 0x082: map_key_clear(KEY_SEARCH);          break;
592                 case 0x083: map_key_clear(KEY_CONNECT);         break;
593                 case 0x084: map_key_clear(KEY_FINANCE);         break;
594                 case 0x085: map_key_clear(KEY_SPORT);           break;
595                 case 0x086: map_key_clear(KEY_SHOP);            break;
596                 default:    goto ignore;
597                 }
598                 break;
599
600         case HID_UP_MSVENDOR:
601                 goto ignore;
602
603         case HID_UP_CUSTOM: /* Reported on Logitech and Apple USB keyboards */
604                 set_bit(EV_REP, input->evbit);
605                 goto ignore;
606
607         case HID_UP_LOGIVENDOR:
608                 goto ignore;
609
610         case HID_UP_PID:
611                 switch (usage->hid & HID_USAGE) {
612                 case 0xa4: map_key_clear(BTN_DEAD);     break;
613                 default: goto ignore;
614                 }
615                 break;
616
617         default:
618         unknown:
619                 if (field->report_size == 1) {
620                         if (field->report->type == HID_OUTPUT_REPORT) {
621                                 map_led(LED_MISC);
622                                 break;
623                         }
624                         map_key(BTN_MISC);
625                         break;
626                 }
627                 if (field->flags & HID_MAIN_ITEM_RELATIVE) {
628                         map_rel(REL_MISC);
629                         break;
630                 }
631                 map_abs(ABS_MISC);
632                 break;
633         }
634
635 mapped:
636         if (device->driver->input_mapped && device->driver->input_mapped(device,
637                                 hidinput, field, usage, &bit, &max) < 0)
638                 goto ignore;
639
640         set_bit(usage->type, input->evbit);
641
642         while (usage->code <= max && test_and_set_bit(usage->code, bit))
643                 usage->code = find_next_zero_bit(bit, max + 1, usage->code);
644
645         if (usage->code > max)
646                 goto ignore;
647
648
649         if (usage->type == EV_ABS) {
650
651                 int a = field->logical_minimum;
652                 int b = field->logical_maximum;
653
654                 if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
655                         a = field->logical_minimum = 0;
656                         b = field->logical_maximum = 255;
657                 }
658
659                 if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
660                         input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
661                 else    input_set_abs_params(input, usage->code, a, b, 0, 0);
662
663                 input_abs_set_res(input, usage->code,
664                                   hidinput_calc_abs_res(field, usage->code));
665
666                 /* use a larger default input buffer for MT devices */
667                 if (usage->code == ABS_MT_POSITION_X && input->hint_events_per_packet == 0)
668                         input_set_events_per_packet(input, 60);
669         }
670
671         if (usage->type == EV_ABS &&
672             (usage->hat_min < usage->hat_max || usage->hat_dir)) {
673                 int i;
674                 for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
675                         input_set_abs_params(input, i, -1, 1, 0, 0);
676                         set_bit(i, input->absbit);
677                 }
678                 if (usage->hat_dir && !field->dpad)
679                         field->dpad = usage->code;
680         }
681
682         /* for those devices which produce Consumer volume usage as relative,
683          * we emulate pressing volumeup/volumedown appropriate number of times
684          * in hidinput_hid_event()
685          */
686         if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
687                         (usage->code == ABS_VOLUME)) {
688                 set_bit(KEY_VOLUMEUP, input->keybit);
689                 set_bit(KEY_VOLUMEDOWN, input->keybit);
690         }
691
692         if (usage->type == EV_KEY) {
693                 set_bit(EV_MSC, input->evbit);
694                 set_bit(MSC_SCAN, input->mscbit);
695         }
696
697 ignore:
698         return;
699
700 }
701
702 void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
703 {
704         struct input_dev *input;
705         unsigned *quirks = &hid->quirks;
706
707         if (!field->hidinput)
708                 return;
709
710         input = field->hidinput->input;
711
712         if (!usage->type)
713                 return;
714
715         if (usage->hat_min < usage->hat_max || usage->hat_dir) {
716                 int hat_dir = usage->hat_dir;
717                 if (!hat_dir)
718                         hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
719                 if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
720                 input_event(input, usage->type, usage->code    , hid_hat_to_axis[hat_dir].x);
721                 input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
722                 return;
723         }
724
725         if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */
726                 *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
727                 return;
728         }
729
730         if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */
731                 if (value) {
732                         input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
733                         return;
734                 }
735                 input_event(input, usage->type, usage->code, 0);
736                 input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
737                 return;
738         }
739
740         if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */
741                 int a = field->logical_minimum;
742                 int b = field->logical_maximum;
743                 input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3));
744         }
745
746         if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
747                 dbg_hid("Maximum Effects - %d\n",value);
748                 return;
749         }
750
751         if (usage->hid == (HID_UP_PID | 0x7fUL)) {
752                 dbg_hid("PID Pool Report\n");
753                 return;
754         }
755
756         if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
757                 return;
758
759         if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
760                         (usage->code == ABS_VOLUME)) {
761                 int count = abs(value);
762                 int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN;
763                 int i;
764
765                 for (i = 0; i < count; i++) {
766                         input_event(input, EV_KEY, direction, 1);
767                         input_sync(input);
768                         input_event(input, EV_KEY, direction, 0);
769                         input_sync(input);
770                 }
771                 return;
772         }
773
774         /* report the usage code as scancode if the key status has changed */
775         if (usage->type == EV_KEY && !!test_bit(usage->code, input->key) != value)
776                 input_event(input, EV_MSC, MSC_SCAN, usage->hid);
777
778         input_event(input, usage->type, usage->code, value);
779
780         if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY))
781                 input_event(input, usage->type, usage->code, 0);
782 }
783
784 void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
785 {
786         struct hid_input *hidinput;
787
788         if (hid->quirks & HID_QUIRK_NO_INPUT_SYNC)
789                 return;
790
791         list_for_each_entry(hidinput, &hid->inputs, list)
792                 input_sync(hidinput->input);
793 }
794 EXPORT_SYMBOL_GPL(hidinput_report_event);
795
796 int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
797 {
798         struct hid_report *report;
799         int i, j;
800
801         list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
802                 for (i = 0; i < report->maxfield; i++) {
803                         *field = report->field[i];
804                         for (j = 0; j < (*field)->maxusage; j++)
805                                 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
806                                         return j;
807                 }
808         }
809         return -1;
810 }
811 EXPORT_SYMBOL_GPL(hidinput_find_field);
812
813 static int hidinput_open(struct input_dev *dev)
814 {
815         struct hid_device *hid = input_get_drvdata(dev);
816
817         return hid->ll_driver->open(hid);
818 }
819
820 static void hidinput_close(struct input_dev *dev)
821 {
822         struct hid_device *hid = input_get_drvdata(dev);
823
824         hid->ll_driver->close(hid);
825 }
826
827 /*
828  * Register the input device; print a message.
829  * Configure the input layer interface
830  * Read all reports and initialize the absolute field values.
831  */
832
833 int hidinput_connect(struct hid_device *hid, unsigned int force)
834 {
835         struct hid_report *report;
836         struct hid_input *hidinput = NULL;
837         struct input_dev *input_dev;
838         int i, j, k;
839         int max_report_type = HID_OUTPUT_REPORT;
840
841         INIT_LIST_HEAD(&hid->inputs);
842
843         if (!force) {
844                 for (i = 0; i < hid->maxcollection; i++) {
845                         struct hid_collection *col = &hid->collection[i];
846                         if (col->type == HID_COLLECTION_APPLICATION ||
847                                         col->type == HID_COLLECTION_PHYSICAL)
848                                 if (IS_INPUT_APPLICATION(col->usage))
849                                         break;
850                 }
851
852                 if (i == hid->maxcollection)
853                         return -1;
854         }
855
856         if (hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
857                 max_report_type = HID_INPUT_REPORT;
858
859         for (k = HID_INPUT_REPORT; k <= max_report_type; k++)
860                 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
861
862                         if (!report->maxfield)
863                                 continue;
864
865                         if (!hidinput) {
866                                 hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
867                                 input_dev = input_allocate_device();
868                                 if (!hidinput || !input_dev) {
869                                         kfree(hidinput);
870                                         input_free_device(input_dev);
871                                         err_hid("Out of memory during hid input probe");
872                                         goto out_unwind;
873                                 }
874
875                                 input_set_drvdata(input_dev, hid);
876                                 input_dev->event =
877                                         hid->ll_driver->hidinput_input_event;
878                                 input_dev->open = hidinput_open;
879                                 input_dev->close = hidinput_close;
880                                 input_dev->setkeycode_new = hidinput_setkeycode;
881                                 input_dev->getkeycode_new = hidinput_getkeycode;
882
883                                 input_dev->name = hid->name;
884                                 input_dev->phys = hid->phys;
885                                 input_dev->uniq = hid->uniq;
886                                 input_dev->id.bustype = hid->bus;
887                                 input_dev->id.vendor  = hid->vendor;
888                                 input_dev->id.product = hid->product;
889                                 input_dev->id.version = hid->version;
890                                 input_dev->dev.parent = hid->dev.parent;
891                                 hidinput->input = input_dev;
892                                 list_add_tail(&hidinput->list, &hid->inputs);
893                         }
894
895                         for (i = 0; i < report->maxfield; i++)
896                                 for (j = 0; j < report->field[i]->maxusage; j++)
897                                         hidinput_configure_usage(hidinput, report->field[i],
898                                                                  report->field[i]->usage + j);
899
900                         if (hid->quirks & HID_QUIRK_MULTI_INPUT) {
901                                 /* This will leave hidinput NULL, so that it
902                                  * allocates another one if we have more inputs on
903                                  * the same interface. Some devices (e.g. Happ's
904                                  * UGCI) cram a lot of unrelated inputs into the
905                                  * same interface. */
906                                 hidinput->report = report;
907                                 if (input_register_device(hidinput->input))
908                                         goto out_cleanup;
909                                 hidinput = NULL;
910                         }
911                 }
912
913         if (hidinput && input_register_device(hidinput->input))
914                 goto out_cleanup;
915
916         return 0;
917
918 out_cleanup:
919         input_free_device(hidinput->input);
920         kfree(hidinput);
921 out_unwind:
922         /* unwind the ones we already registered */
923         hidinput_disconnect(hid);
924
925         return -1;
926 }
927 EXPORT_SYMBOL_GPL(hidinput_connect);
928
929 void hidinput_disconnect(struct hid_device *hid)
930 {
931         struct hid_input *hidinput, *next;
932
933         list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
934                 list_del(&hidinput->list);
935                 input_unregister_device(hidinput->input);
936                 kfree(hidinput);
937         }
938 }
939 EXPORT_SYMBOL_GPL(hidinput_disconnect);
940