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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