LCOV - code coverage report
Current view: top level - lkbce/drivers/hid - hid-input.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 2 543 0.4 %
Date: 2017-01-25 Functions: 0 12 0.0 %

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

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