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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
37static 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,111,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,111,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
56static 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
71static 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
77static 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
86static bool match_index(struct hid_usage *usage,
87 unsigned int cur_idx, unsigned int idx)
88{
89 return cur_idx == idx;
90}
91
92typedef bool (*hid_usage_cmp_t)(struct hid_usage *usage,
93 unsigned int cur_idx, unsigned int val);
94
95static 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
124static 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
141static 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
162static 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("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 and inches are
207 * converted to millimeters. Degrees are converted to radians.
208 */
209static __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 millimeters */
229 unit_exponent += 1;
230 } else if (field->unit == 0x13) { /* If inches */
231 /* Convert to millimeters */
232 prev = physical_extents;
233 physical_extents *= 254;
234 if (physical_extents < prev)
235 return 0;
236 unit_exponent -= 1;
237 } else {
238 return 0;
239 }
240 } else if (code == ABS_RX || code == ABS_RY || code == ABS_RZ) {
241 if (field->unit == 0x14) { /* If degrees */
242 /* Convert to radians */
243 prev = logical_extents;
244 logical_extents *= 573;
245 if (logical_extents < prev)
246 return 0;
247 unit_exponent += 1;
248 } else if (field->unit != 0x12) { /* If not radians */
249 return 0;
250 }
251 } else {
252 return 0;
253 }
254
255 /* Apply negative unit exponent */
256 for (; unit_exponent < 0; unit_exponent++) {
257 prev = logical_extents;
258 logical_extents *= 10;
259 if (logical_extents < prev)
260 return 0;
261 }
262 /* Apply positive unit exponent */
263 for (; unit_exponent > 0; unit_exponent--) {
264 prev = physical_extents;
265 physical_extents *= 10;
266 if (physical_extents < prev)
267 return 0;
268 }
269
270 /* Calculate resolution */
271 return logical_extents / physical_extents;
272}
273
274static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
275 struct hid_usage *usage)
276{
277 struct input_dev *input = hidinput->input;
278 struct hid_device *device = input_get_drvdata(input);
279 int max = 0, code;
280 unsigned long *bit = NULL;
281
282 field->hidinput = hidinput;
283
284 if (field->flags & HID_MAIN_ITEM_CONSTANT)
285 goto ignore;
286
287 /* only LED usages are supported in output fields */
288 if (field->report_type == HID_OUTPUT_REPORT &&
289 (usage->hid & HID_USAGE_PAGE) != HID_UP_LED) {
290 goto ignore;
291 }
292
293 if (device->driver->input_mapping) {
294 int ret = device->driver->input_mapping(device, hidinput, field,
295 usage, &bit, &max);
296 if (ret > 0)
297 goto mapped;
298 if (ret < 0)
299 goto ignore;
300 }
301
302 switch (usage->hid & HID_USAGE_PAGE) {
303 case HID_UP_UNDEFINED:
304 goto ignore;
305
306 case HID_UP_KEYBOARD:
307 set_bit(EV_REP, input->evbit);
308
309 if ((usage->hid & HID_USAGE) < 256) {
310 if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
311 map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
312 } else
313 map_key(KEY_UNKNOWN);
314
315 break;
316
317 case HID_UP_BUTTON:
318 code = ((usage->hid - 1) & HID_USAGE);
319
320 switch (field->application) {
321 case HID_GD_MOUSE:
322 case HID_GD_POINTER: code += BTN_MOUSE; break;
323 case HID_GD_JOYSTICK:
324 if (code <= 0xf)
325 code += BTN_JOYSTICK;
326 else
327 code += BTN_TRIGGER_HAPPY;
328 break;
329 case HID_GD_GAMEPAD: code += BTN_GAMEPAD; break;
330 default:
331 switch (field->physical) {
332 case HID_GD_MOUSE:
333 case HID_GD_POINTER: code += BTN_MOUSE; break;
334 case HID_GD_JOYSTICK: code += BTN_JOYSTICK; break;
335 case HID_GD_GAMEPAD: code += BTN_GAMEPAD; break;
336 default: code += BTN_MISC;
337 }
338 }
339
340 map_key(code);
341 break;
342
343 case HID_UP_SIMULATION:
344 switch (usage->hid & 0xffff) {
345 case 0xba: map_abs(ABS_RUDDER); break;
346 case 0xbb: map_abs(ABS_THROTTLE); break;
347 case 0xc4: map_abs(ABS_GAS); break;
348 case 0xc5: map_abs(ABS_BRAKE); break;
349 case 0xc8: map_abs(ABS_WHEEL); break;
350 default: goto ignore;
351 }
352 break;
353
354 case HID_UP_GENDESK:
355 if ((usage->hid & 0xf0) == 0x80) { /* SystemControl */
356 switch (usage->hid & 0xf) {
357 case 0x1: map_key_clear(KEY_POWER); break;
358 case 0x2: map_key_clear(KEY_SLEEP); break;
359 case 0x3: map_key_clear(KEY_WAKEUP); break;
360 case 0x4: map_key_clear(KEY_CONTEXT_MENU); break;
361 case 0x5: map_key_clear(KEY_MENU); break;
362 case 0x6: map_key_clear(KEY_PROG1); break;
363 case 0x7: map_key_clear(KEY_HELP); break;
364 case 0x8: map_key_clear(KEY_EXIT); break;
365 case 0x9: map_key_clear(KEY_SELECT); break;
366 case 0xa: map_key_clear(KEY_RIGHT); break;
367 case 0xb: map_key_clear(KEY_LEFT); break;
368 case 0xc: map_key_clear(KEY_UP); break;
369 case 0xd: map_key_clear(KEY_DOWN); break;
370 case 0xe: map_key_clear(KEY_POWER2); break;
371 case 0xf: map_key_clear(KEY_RESTART); break;
372 default: goto unknown;
373 }
374 break;
375 }
376
377 if ((usage->hid & 0xf0) == 0x90) { /* D-pad */
378 switch (usage->hid) {
379 case HID_GD_UP: usage->hat_dir = 1; break;
380 case HID_GD_DOWN: usage->hat_dir = 5; break;
381 case HID_GD_RIGHT: usage->hat_dir = 3; break;
382 case HID_GD_LEFT: usage->hat_dir = 7; break;
383 default: goto unknown;
384 }
385 if (field->dpad) {
386 map_abs(field->dpad);
387 goto ignore;
388 }
389 map_abs(ABS_HAT0X);
390 break;
391 }
392
393 switch (usage->hid) {
394 /* These usage IDs map directly to the usage codes. */
395 case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
396 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
397 case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL:
398 if (field->flags & HID_MAIN_ITEM_RELATIVE)
399 map_rel(usage->hid & 0xf);
400 else
401 map_abs(usage->hid & 0xf);
402 break;
403
404 case HID_GD_HATSWITCH:
405 usage->hat_min = field->logical_minimum;
406 usage->hat_max = field->logical_maximum;
407 map_abs(ABS_HAT0X);
408 break;
409
410 case HID_GD_START: map_key_clear(BTN_START); break;
411 case HID_GD_SELECT: map_key_clear(BTN_SELECT); break;
412
413 default: goto unknown;
414 }
415
416 break;
417
418 case HID_UP_LED:
419 switch (usage->hid & 0xffff) { /* HID-Value: */
420 case 0x01: map_led (LED_NUML); break; /* "Num Lock" */
421 case 0x02: map_led (LED_CAPSL); break; /* "Caps Lock" */
422 case 0x03: map_led (LED_SCROLLL); break; /* "Scroll Lock" */
423 case 0x04: map_led (LED_COMPOSE); break; /* "Compose" */
424 case 0x05: map_led (LED_KANA); break; /* "Kana" */
425 case 0x27: map_led (LED_SLEEP); break; /* "Stand-By" */
426 case 0x4c: map_led (LED_SUSPEND); break; /* "System Suspend" */
427 case 0x09: map_led (LED_MUTE); break; /* "Mute" */
428 case 0x4b: map_led (LED_MISC); break; /* "Generic Indicator" */
429 case 0x19: map_led (LED_MAIL); break; /* "Message Waiting" */
430 case 0x4d: map_led (LED_CHARGING); break; /* "External Power Connected" */
431
432 default: goto ignore;
433 }
434 break;
435
436 case HID_UP_DIGITIZER:
437 switch (usage->hid & 0xff) {
438 case 0x00: /* Undefined */
439 goto ignore;
440
441 case 0x30: /* TipPressure */
442 if (!test_bit(BTN_TOUCH, input->keybit)) {
443 device->quirks |= HID_QUIRK_NOTOUCH;
444 set_bit(EV_KEY, input->evbit);
445 set_bit(BTN_TOUCH, input->keybit);
446 }
447 map_abs_clear(ABS_PRESSURE);
448 break;
449
450 case 0x32: /* InRange */
451 switch (field->physical & 0xff) {
452 case 0x21: map_key(BTN_TOOL_MOUSE); break;
453 case 0x22: map_key(BTN_TOOL_FINGER); break;
454 default: map_key(BTN_TOOL_PEN); break;
455 }
456 break;
457
458 case 0x3c: /* Invert */
459 map_key_clear(BTN_TOOL_RUBBER);
460 break;
461
462 case 0x33: /* Touch */
463 case 0x42: /* TipSwitch */
464 case 0x43: /* TipSwitch2 */
465 device->quirks &= ~HID_QUIRK_NOTOUCH;
466 map_key_clear(BTN_TOUCH);
467 break;
468
469 case 0x44: /* BarrelSwitch */
470 map_key_clear(BTN_STYLUS);
471 break;
472
473 case 0x46: /* TabletPick */
474 map_key_clear(BTN_STYLUS2);
475 break;
476
477 default: goto unknown;
478 }
479 break;
480
481 case HID_UP_CONSUMER: /* USB HUT v1.12, pages 75-84 */
482 switch (usage->hid & HID_USAGE) {
483 case 0x000: goto ignore;
484 case 0x030: map_key_clear(KEY_POWER); break;
485 case 0x031: map_key_clear(KEY_RESTART); break;
486 case 0x032: map_key_clear(KEY_SLEEP); break;
487 case 0x034: map_key_clear(KEY_SLEEP); break;
488 case 0x035: map_key_clear(KEY_KBDILLUMTOGGLE); break;
489 case 0x036: map_key_clear(BTN_MISC); break;
490
491 case 0x040: map_key_clear(KEY_MENU); break; /* Menu */
492 case 0x041: map_key_clear(KEY_SELECT); break; /* Menu Pick */
493 case 0x042: map_key_clear(KEY_UP); break; /* Menu Up */
494 case 0x043: map_key_clear(KEY_DOWN); break; /* Menu Down */
495 case 0x044: map_key_clear(KEY_LEFT); break; /* Menu Left */
496 case 0x045: map_key_clear(KEY_RIGHT); break; /* Menu Right */
497 case 0x046: map_key_clear(KEY_ESC); break; /* Menu Escape */
498 case 0x047: map_key_clear(KEY_KPPLUS); break; /* Menu Value Increase */
499 case 0x048: map_key_clear(KEY_KPMINUS); break; /* Menu Value Decrease */
500
501 case 0x060: map_key_clear(KEY_INFO); break; /* Data On Screen */
502 case 0x061: map_key_clear(KEY_SUBTITLE); break; /* Closed Caption */
503 case 0x063: map_key_clear(KEY_VCR); break; /* VCR/TV */
504 case 0x065: map_key_clear(KEY_CAMERA); break; /* Snapshot */
505 case 0x069: map_key_clear(KEY_RED); break;
506 case 0x06a: map_key_clear(KEY_GREEN); break;
507 case 0x06b: map_key_clear(KEY_BLUE); break;
508 case 0x06c: map_key_clear(KEY_YELLOW); break;
509 case 0x06d: map_key_clear(KEY_ZOOM); break;
510
511 case 0x082: map_key_clear(KEY_VIDEO_NEXT); break;
512 case 0x083: map_key_clear(KEY_LAST); break;
513 case 0x084: map_key_clear(KEY_ENTER); break;
514 case 0x088: map_key_clear(KEY_PC); break;
515 case 0x089: map_key_clear(KEY_TV); break;
516 case 0x08a: map_key_clear(KEY_WWW); break;
517 case 0x08b: map_key_clear(KEY_DVD); break;
518 case 0x08c: map_key_clear(KEY_PHONE); break;
519 case 0x08d: map_key_clear(KEY_PROGRAM); break;
520 case 0x08e: map_key_clear(KEY_VIDEOPHONE); break;
521 case 0x08f: map_key_clear(KEY_GAMES); break;
522 case 0x090: map_key_clear(KEY_MEMO); break;
523 case 0x091: map_key_clear(KEY_CD); break;
524 case 0x092: map_key_clear(KEY_VCR); break;
525 case 0x093: map_key_clear(KEY_TUNER); break;
526 case 0x094: map_key_clear(KEY_EXIT); break;
527 case 0x095: map_key_clear(KEY_HELP); break;
528 case 0x096: map_key_clear(KEY_TAPE); break;
529 case 0x097: map_key_clear(KEY_TV2); break;
530 case 0x098: map_key_clear(KEY_SAT); break;
531 case 0x09a: map_key_clear(KEY_PVR); break;
532
533 case 0x09c: map_key_clear(KEY_CHANNELUP); break;
534 case 0x09d: map_key_clear(KEY_CHANNELDOWN); break;
535 case 0x0a0: map_key_clear(KEY_VCR2); break;
536
537 case 0x0b0: map_key_clear(KEY_PLAY); break;
538 case 0x0b1: map_key_clear(KEY_PAUSE); break;
539 case 0x0b2: map_key_clear(KEY_RECORD); break;
540 case 0x0b3: map_key_clear(KEY_FASTFORWARD); break;
541 case 0x0b4: map_key_clear(KEY_REWIND); break;
542 case 0x0b5: map_key_clear(KEY_NEXTSONG); break;
543 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG); break;
544 case 0x0b7: map_key_clear(KEY_STOPCD); break;
545 case 0x0b8: map_key_clear(KEY_EJECTCD); break;
546 case 0x0bc: map_key_clear(KEY_MEDIA_REPEAT); break;
547 case 0x0b9: map_key_clear(KEY_SHUFFLE); break;
548 case 0x0bf: map_key_clear(KEY_SLOW); break;
549
550 case 0x0cd: map_key_clear(KEY_PLAYPAUSE); break;
551 case 0x0e0: map_abs_clear(ABS_VOLUME); break;
552 case 0x0e2: map_key_clear(KEY_MUTE); break;
553 case 0x0e5: map_key_clear(KEY_BASSBOOST); break;
554 case 0x0e9: map_key_clear(KEY_VOLUMEUP); break;
555 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN); break;
556 case 0x0f5: map_key_clear(KEY_SLOW); break;
557
558 case 0x182: map_key_clear(KEY_BOOKMARKS); break;
559 case 0x183: map_key_clear(KEY_CONFIG); break;
560 case 0x184: map_key_clear(KEY_WORDPROCESSOR); break;
561 case 0x185: map_key_clear(KEY_EDITOR); break;
562 case 0x186: map_key_clear(KEY_SPREADSHEET); break;
563 case 0x187: map_key_clear(KEY_GRAPHICSEDITOR); break;
564 case 0x188: map_key_clear(KEY_PRESENTATION); break;
565 case 0x189: map_key_clear(KEY_DATABASE); break;
566 case 0x18a: map_key_clear(KEY_MAIL); break;
567 case 0x18b: map_key_clear(KEY_NEWS); break;
568 case 0x18c: map_key_clear(KEY_VOICEMAIL); break;
569 case 0x18d: map_key_clear(KEY_ADDRESSBOOK); break;
570 case 0x18e: map_key_clear(KEY_CALENDAR); break;
571 case 0x191: map_key_clear(KEY_FINANCE); break;
572 case 0x192: map_key_clear(KEY_CALC); break;
573 case 0x193: map_key_clear(KEY_PLAYER); break;
574 case 0x194: map_key_clear(KEY_FILE); break;
575 case 0x196: map_key_clear(KEY_WWW); break;
576 case 0x199: map_key_clear(KEY_CHAT); break;
577 case 0x19c: map_key_clear(KEY_LOGOFF); break;
578 case 0x19e: map_key_clear(KEY_COFFEE); break;
579 case 0x1a6: map_key_clear(KEY_HELP); break;
580 case 0x1a7: map_key_clear(KEY_DOCUMENTS); break;
581 case 0x1ab: map_key_clear(KEY_SPELLCHECK); break;
582 case 0x1ae: map_key_clear(KEY_KEYBOARD); break;
583 case 0x1b6: map_key_clear(KEY_IMAGES); break;
584 case 0x1b7: map_key_clear(KEY_AUDIO); break;
585 case 0x1b8: map_key_clear(KEY_VIDEO); break;
586 case 0x1bc: map_key_clear(KEY_MESSENGER); break;
587 case 0x1bd: map_key_clear(KEY_INFO); break;
588 case 0x201: map_key_clear(KEY_NEW); break;
589 case 0x202: map_key_clear(KEY_OPEN); break;
590 case 0x203: map_key_clear(KEY_CLOSE); break;
591 case 0x204: map_key_clear(KEY_EXIT); break;
592 case 0x207: map_key_clear(KEY_SAVE); break;
593 case 0x208: map_key_clear(KEY_PRINT); break;
594 case 0x209: map_key_clear(KEY_PROPS); break;
595 case 0x21a: map_key_clear(KEY_UNDO); break;
596 case 0x21b: map_key_clear(KEY_COPY); break;
597 case 0x21c: map_key_clear(KEY_CUT); break;
598 case 0x21d: map_key_clear(KEY_PASTE); break;
599 case 0x21f: map_key_clear(KEY_FIND); break;
600 case 0x221: map_key_clear(KEY_SEARCH); break;
601 case 0x222: map_key_clear(KEY_GOTO); break;
602 case 0x223: map_key_clear(KEY_HOMEPAGE); break;
603 case 0x224: map_key_clear(KEY_BACK); break;
604 case 0x225: map_key_clear(KEY_FORWARD); break;
605 case 0x226: map_key_clear(KEY_STOP); break;
606 case 0x227: map_key_clear(KEY_REFRESH); break;
607 case 0x22a: map_key_clear(KEY_BOOKMARKS); break;
608 case 0x22d: map_key_clear(KEY_ZOOMIN); break;
609 case 0x22e: map_key_clear(KEY_ZOOMOUT); break;
610 case 0x22f: map_key_clear(KEY_ZOOMRESET); break;
611 case 0x233: map_key_clear(KEY_SCROLLUP); break;
612 case 0x234: map_key_clear(KEY_SCROLLDOWN); break;
613 case 0x238: map_rel(REL_HWHEEL); break;
614 case 0x23d: map_key_clear(KEY_EDIT); break;
615 case 0x25f: map_key_clear(KEY_CANCEL); break;
616 case 0x269: map_key_clear(KEY_INSERT); break;
617 case 0x26a: map_key_clear(KEY_DELETE); break;
618 case 0x279: map_key_clear(KEY_REDO); break;
619
620 case 0x289: map_key_clear(KEY_REPLY); break;
621 case 0x28b: map_key_clear(KEY_FORWARDMAIL); break;
622 case 0x28c: map_key_clear(KEY_SEND); break;
623
624 default: goto ignore;
625 }
626 break;
627
628 case HID_UP_HPVENDOR: /* Reported on a Dutch layout HP5308 */
629 set_bit(EV_REP, input->evbit);
630 switch (usage->hid & HID_USAGE) {
631 case 0x021: map_key_clear(KEY_PRINT); break;
632 case 0x070: map_key_clear(KEY_HP); break;
633 case 0x071: map_key_clear(KEY_CAMERA); break;
634 case 0x072: map_key_clear(KEY_SOUND); break;
635 case 0x073: map_key_clear(KEY_QUESTION); break;
636 case 0x080: map_key_clear(KEY_EMAIL); break;
637 case 0x081: map_key_clear(KEY_CHAT); break;
638 case 0x082: map_key_clear(KEY_SEARCH); break;
639 case 0x083: map_key_clear(KEY_CONNECT); break;
640 case 0x084: map_key_clear(KEY_FINANCE); break;
641 case 0x085: map_key_clear(KEY_SPORT); break;
642 case 0x086: map_key_clear(KEY_SHOP); break;
643 default: goto ignore;
644 }
645 break;
646
647 case HID_UP_MSVENDOR:
648 goto ignore;
649
650 case HID_UP_CUSTOM: /* Reported on Logitech and Apple USB keyboards */
651 set_bit(EV_REP, input->evbit);
652 goto ignore;
653
654 case HID_UP_LOGIVENDOR:
655 goto ignore;
656
657 case HID_UP_PID:
658 switch (usage->hid & HID_USAGE) {
659 case 0xa4: map_key_clear(BTN_DEAD); break;
660 default: goto ignore;
661 }
662 break;
663
664 default:
665 unknown:
666 if (field->report_size == 1) {
667 if (field->report->type == HID_OUTPUT_REPORT) {
668 map_led(LED_MISC);
669 break;
670 }
671 map_key(BTN_MISC);
672 break;
673 }
674 if (field->flags & HID_MAIN_ITEM_RELATIVE) {
675 map_rel(REL_MISC);
676 break;
677 }
678 map_abs(ABS_MISC);
679 break;
680 }
681
682mapped:
683 if (device->driver->input_mapped && device->driver->input_mapped(device,
684 hidinput, field, usage, &bit, &max) < 0)
685 goto ignore;
686
687 set_bit(usage->type, input->evbit);
688
689 while (usage->code <= max && test_and_set_bit(usage->code, bit))
690 usage->code = find_next_zero_bit(bit, max + 1, usage->code);
691
692 if (usage->code > max)
693 goto ignore;
694
695
696 if (usage->type == EV_ABS) {
697
698 int a = field->logical_minimum;
699 int b = field->logical_maximum;
700
701 if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
702 a = field->logical_minimum = 0;
703 b = field->logical_maximum = 255;
704 }
705
706 if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
707 input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
708 else input_set_abs_params(input, usage->code, a, b, 0, 0);
709
710 input_abs_set_res(input, usage->code,
711 hidinput_calc_abs_res(field, usage->code));
712
713 /* use a larger default input buffer for MT devices */
714 if (usage->code == ABS_MT_POSITION_X && input->hint_events_per_packet == 0)
715 input_set_events_per_packet(input, 60);
716 }
717
718 if (usage->type == EV_ABS &&
719 (usage->hat_min < usage->hat_max || usage->hat_dir)) {
720 int i;
721 for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
722 input_set_abs_params(input, i, -1, 1, 0, 0);
723 set_bit(i, input->absbit);
724 }
725 if (usage->hat_dir && !field->dpad)
726 field->dpad = usage->code;
727 }
728
729 /* for those devices which produce Consumer volume usage as relative,
730 * we emulate pressing volumeup/volumedown appropriate number of times
731 * in hidinput_hid_event()
732 */
733 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
734 (usage->code == ABS_VOLUME)) {
735 set_bit(KEY_VOLUMEUP, input->keybit);
736 set_bit(KEY_VOLUMEDOWN, input->keybit);
737 }
738
739 if (usage->type == EV_KEY) {
740 set_bit(EV_MSC, input->evbit);
741 set_bit(MSC_SCAN, input->mscbit);
742 }
743
744ignore:
745 return;
746
747}
748
749void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
750{
751 struct input_dev *input;
752 unsigned *quirks = &hid->quirks;
753
754 if (!field->hidinput)
755 return;
756
757 input = field->hidinput->input;
758
759 if (!usage->type)
760 return;
761
762 if (usage->hat_min < usage->hat_max || usage->hat_dir) {
763 int hat_dir = usage->hat_dir;
764 if (!hat_dir)
765 hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
766 if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
767 input_event(input, usage->type, usage->code , hid_hat_to_axis[hat_dir].x);
768 input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
769 return;
770 }
771
772 if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */
773 *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
774 return;
775 }
776
777 if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */
778 if (value) {
779 input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
780 return;
781 }
782 input_event(input, usage->type, usage->code, 0);
783 input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
784 return;
785 }
786
787 if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */
788 int a = field->logical_minimum;
789 int b = field->logical_maximum;
790 input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3));
791 }
792
793 if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
794 dbg_hid("Maximum Effects - %d\n",value);
795 return;
796 }
797
798 if (usage->hid == (HID_UP_PID | 0x7fUL)) {
799 dbg_hid("PID Pool Report\n");
800 return;
801 }
802
803 if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
804 return;
805
806 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
807 (usage->code == ABS_VOLUME)) {
808 int count = abs(value);
809 int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN;
810 int i;
811
812 for (i = 0; i < count; i++) {
813 input_event(input, EV_KEY, direction, 1);
814 input_sync(input);
815 input_event(input, EV_KEY, direction, 0);
816 input_sync(input);
817 }
818 return;
819 }
820
821 /* report the usage code as scancode if the key status has changed */
822 if (usage->type == EV_KEY && !!test_bit(usage->code, input->key) != value)
823 input_event(input, EV_MSC, MSC_SCAN, usage->hid);
824
825 input_event(input, usage->type, usage->code, value);
826
827 if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY))
828 input_event(input, usage->type, usage->code, 0);
829}
830
831void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
832{
833 struct hid_input *hidinput;
834
835 if (hid->quirks & HID_QUIRK_NO_INPUT_SYNC)
836 return;
837
838 list_for_each_entry(hidinput, &hid->inputs, list)
839 input_sync(hidinput->input);
840}
841EXPORT_SYMBOL_GPL(hidinput_report_event);
842
843int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
844{
845 struct hid_report *report;
846 int i, j;
847
848 list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
849 for (i = 0; i < report->maxfield; i++) {
850 *field = report->field[i];
851 for (j = 0; j < (*field)->maxusage; j++)
852 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
853 return j;
854 }
855 }
856 return -1;
857}
858EXPORT_SYMBOL_GPL(hidinput_find_field);
859
860static int hidinput_open(struct input_dev *dev)
861{
862 struct hid_device *hid = input_get_drvdata(dev);
863
864 return hid_hw_open(hid);
865}
866
867static void hidinput_close(struct input_dev *dev)
868{
869 struct hid_device *hid = input_get_drvdata(dev);
870
871 hid_hw_close(hid);
872}
873
874static void report_features(struct hid_device *hid)
875{
876 struct hid_driver *drv = hid->driver;
877 struct hid_report_enum *rep_enum;
878 struct hid_report *rep;
879 int i, j;
880
881 if (!drv->feature_mapping)
882 return;
883
884 rep_enum = &hid->report_enum[HID_FEATURE_REPORT];
885 list_for_each_entry(rep, &rep_enum->report_list, list)
886 for (i = 0; i < rep->maxfield; i++)
887 for (j = 0; j < rep->field[i]->maxusage; j++)
888 drv->feature_mapping(hid, rep->field[i],
889 rep->field[i]->usage + j);
890}
891
892/*
893 * Register the input device; print a message.
894 * Configure the input layer interface
895 * Read all reports and initialize the absolute field values.
896 */
897
898int hidinput_connect(struct hid_device *hid, unsigned int force)
899{
900 struct hid_report *report;
901 struct hid_input *hidinput = NULL;
902 struct input_dev *input_dev;
903 int i, j, k;
904
905 INIT_LIST_HEAD(&hid->inputs);
906
907 if (!force) {
908 for (i = 0; i < hid->maxcollection; i++) {
909 struct hid_collection *col = &hid->collection[i];
910 if (col->type == HID_COLLECTION_APPLICATION ||
911 col->type == HID_COLLECTION_PHYSICAL)
912 if (IS_INPUT_APPLICATION(col->usage))
913 break;
914 }
915
916 if (i == hid->maxcollection)
917 return -1;
918 }
919
920 report_features(hid);
921
922 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
923 if (k == HID_OUTPUT_REPORT &&
924 hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
925 continue;
926
927 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
928
929 if (!report->maxfield)
930 continue;
931
932 if (!hidinput) {
933 hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
934 input_dev = input_allocate_device();
935 if (!hidinput || !input_dev) {
936 kfree(hidinput);
937 input_free_device(input_dev);
938 hid_err(hid, "Out of memory during hid input probe\n");
939 goto out_unwind;
940 }
941
942 input_set_drvdata(input_dev, hid);
943 input_dev->event =
944 hid->ll_driver->hidinput_input_event;
945 input_dev->open = hidinput_open;
946 input_dev->close = hidinput_close;
947 input_dev->setkeycode = hidinput_setkeycode;
948 input_dev->getkeycode = hidinput_getkeycode;
949
950 input_dev->name = hid->name;
951 input_dev->phys = hid->phys;
952 input_dev->uniq = hid->uniq;
953 input_dev->id.bustype = hid->bus;
954 input_dev->id.vendor = hid->vendor;
955 input_dev->id.product = hid->product;
956 input_dev->id.version = hid->version;
957 input_dev->dev.parent = hid->dev.parent;
958 hidinput->input = input_dev;
959 list_add_tail(&hidinput->list, &hid->inputs);
960 }
961
962 for (i = 0; i < report->maxfield; i++)
963 for (j = 0; j < report->field[i]->maxusage; j++)
964 hidinput_configure_usage(hidinput, report->field[i],
965 report->field[i]->usage + j);
966
967 if (hid->quirks & HID_QUIRK_MULTI_INPUT) {
968 /* This will leave hidinput NULL, so that it
969 * allocates another one if we have more inputs on
970 * the same interface. Some devices (e.g. Happ's
971 * UGCI) cram a lot of unrelated inputs into the
972 * same interface. */
973 hidinput->report = report;
974 if (input_register_device(hidinput->input))
975 goto out_cleanup;
976 hidinput = NULL;
977 }
978 }
979 }
980
981 if (hidinput && input_register_device(hidinput->input))
982 goto out_cleanup;
983
984 return 0;
985
986out_cleanup:
987 list_del(&hidinput->list);
988 input_free_device(hidinput->input);
989 kfree(hidinput);
990out_unwind:
991 /* unwind the ones we already registered */
992 hidinput_disconnect(hid);
993
994 return -1;
995}
996EXPORT_SYMBOL_GPL(hidinput_connect);
997
998void hidinput_disconnect(struct hid_device *hid)
999{
1000 struct hid_input *hidinput, *next;
1001
1002 list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
1003 list_del(&hidinput->list);
1004 input_unregister_device(hidinput->input);
1005 kfree(hidinput);
1006 }
1007}
1008EXPORT_SYMBOL_GPL(hidinput_disconnect);
1009
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#include "hid-ids.h"
36
37#define unk KEY_UNKNOWN
38
39static const unsigned char hid_keyboard[256] = {
40 0, 0, 0, 0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
41 50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44, 2, 3,
42 4, 5, 6, 7, 8, 9, 10, 11, 28, 1, 14, 15, 57, 12, 13, 26,
43 27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
44 65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
45 105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
46 72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190,
47 191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113,
48 115,114,unk,unk,unk,121,unk, 89, 93,124, 92, 94, 95,unk,unk,unk,
49 122,123, 90, 91, 85,unk,unk,unk,unk,unk,unk,unk,111,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,179,180,unk,unk,unk,unk,unk,unk,unk,unk,
52 unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
53 unk,unk,unk,unk,unk,unk,unk,unk,111,unk,unk,unk,unk,unk,unk,unk,
54 29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
55 150,158,159,128,136,177,178,176,142,152,173,140,unk,unk,unk,unk
56};
57
58static const struct {
59 __s32 x;
60 __s32 y;
61} hid_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
62
63#define map_abs(c) hid_map_usage(hidinput, usage, &bit, &max, EV_ABS, (c))
64#define map_rel(c) hid_map_usage(hidinput, usage, &bit, &max, EV_REL, (c))
65#define map_key(c) hid_map_usage(hidinput, usage, &bit, &max, EV_KEY, (c))
66#define map_led(c) hid_map_usage(hidinput, usage, &bit, &max, EV_LED, (c))
67
68#define map_abs_clear(c) hid_map_usage_clear(hidinput, usage, &bit, \
69 &max, EV_ABS, (c))
70#define map_key_clear(c) hid_map_usage_clear(hidinput, usage, &bit, \
71 &max, EV_KEY, (c))
72
73static bool match_scancode(struct hid_usage *usage,
74 unsigned int cur_idx, unsigned int scancode)
75{
76 return (usage->hid & (HID_USAGE_PAGE | HID_USAGE)) == scancode;
77}
78
79static bool match_keycode(struct hid_usage *usage,
80 unsigned int cur_idx, unsigned int keycode)
81{
82 /*
83 * We should exclude unmapped usages when doing lookup by keycode.
84 */
85 return (usage->type == EV_KEY && usage->code == keycode);
86}
87
88static bool match_index(struct hid_usage *usage,
89 unsigned int cur_idx, unsigned int idx)
90{
91 return cur_idx == idx;
92}
93
94typedef bool (*hid_usage_cmp_t)(struct hid_usage *usage,
95 unsigned int cur_idx, unsigned int val);
96
97static struct hid_usage *hidinput_find_key(struct hid_device *hid,
98 hid_usage_cmp_t match,
99 unsigned int value,
100 unsigned int *usage_idx)
101{
102 unsigned int i, j, k, cur_idx = 0;
103 struct hid_report *report;
104 struct hid_usage *usage;
105
106 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
107 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
108 for (i = 0; i < report->maxfield; i++) {
109 for (j = 0; j < report->field[i]->maxusage; j++) {
110 usage = report->field[i]->usage + j;
111 if (usage->type == EV_KEY || usage->type == 0) {
112 if (match(usage, cur_idx, value)) {
113 if (usage_idx)
114 *usage_idx = cur_idx;
115 return usage;
116 }
117 cur_idx++;
118 }
119 }
120 }
121 }
122 }
123 return NULL;
124}
125
126static struct hid_usage *hidinput_locate_usage(struct hid_device *hid,
127 const struct input_keymap_entry *ke,
128 unsigned int *index)
129{
130 struct hid_usage *usage;
131 unsigned int scancode;
132
133 if (ke->flags & INPUT_KEYMAP_BY_INDEX)
134 usage = hidinput_find_key(hid, match_index, ke->index, index);
135 else if (input_scancode_to_scalar(ke, &scancode) == 0)
136 usage = hidinput_find_key(hid, match_scancode, scancode, index);
137 else
138 usage = NULL;
139
140 return usage;
141}
142
143static int hidinput_getkeycode(struct input_dev *dev,
144 struct input_keymap_entry *ke)
145{
146 struct hid_device *hid = input_get_drvdata(dev);
147 struct hid_usage *usage;
148 unsigned int scancode, index;
149
150 usage = hidinput_locate_usage(hid, ke, &index);
151 if (usage) {
152 ke->keycode = usage->type == EV_KEY ?
153 usage->code : KEY_RESERVED;
154 ke->index = index;
155 scancode = usage->hid & (HID_USAGE_PAGE | HID_USAGE);
156 ke->len = sizeof(scancode);
157 memcpy(ke->scancode, &scancode, sizeof(scancode));
158 return 0;
159 }
160
161 return -EINVAL;
162}
163
164static int hidinput_setkeycode(struct input_dev *dev,
165 const struct input_keymap_entry *ke,
166 unsigned int *old_keycode)
167{
168 struct hid_device *hid = input_get_drvdata(dev);
169 struct hid_usage *usage;
170
171 usage = hidinput_locate_usage(hid, ke, NULL);
172 if (usage) {
173 *old_keycode = usage->type == EV_KEY ?
174 usage->code : KEY_RESERVED;
175 usage->code = ke->keycode;
176
177 clear_bit(*old_keycode, dev->keybit);
178 set_bit(usage->code, dev->keybit);
179 dbg_hid("Assigned keycode %d to HID usage code %x\n",
180 usage->code, usage->hid);
181
182 /*
183 * Set the keybit for the old keycode if the old keycode is used
184 * by another key
185 */
186 if (hidinput_find_key(hid, match_keycode, *old_keycode, NULL))
187 set_bit(*old_keycode, dev->keybit);
188
189 return 0;
190 }
191
192 return -EINVAL;
193}
194
195
196/**
197 * hidinput_calc_abs_res - calculate an absolute axis resolution
198 * @field: the HID report field to calculate resolution for
199 * @code: axis code
200 *
201 * The formula is:
202 * (logical_maximum - logical_minimum)
203 * resolution = ----------------------------------------------------------
204 * (physical_maximum - physical_minimum) * 10 ^ unit_exponent
205 *
206 * as seen in the HID specification v1.11 6.2.2.7 Global Items.
207 *
208 * Only exponent 1 length units are processed. Centimeters and inches are
209 * converted to millimeters. Degrees are converted to radians.
210 */
211static __s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code)
212{
213 __s32 unit_exponent = field->unit_exponent;
214 __s32 logical_extents = field->logical_maximum -
215 field->logical_minimum;
216 __s32 physical_extents = field->physical_maximum -
217 field->physical_minimum;
218 __s32 prev;
219
220 /* Check if the extents are sane */
221 if (logical_extents <= 0 || physical_extents <= 0)
222 return 0;
223
224 /*
225 * Verify and convert units.
226 * See HID specification v1.11 6.2.2.7 Global Items for unit decoding
227 */
228 switch (code) {
229 case ABS_X:
230 case ABS_Y:
231 case ABS_Z:
232 if (field->unit == 0x11) { /* If centimeters */
233 /* Convert to millimeters */
234 unit_exponent += 1;
235 } else if (field->unit == 0x13) { /* If inches */
236 /* Convert to millimeters */
237 prev = physical_extents;
238 physical_extents *= 254;
239 if (physical_extents < prev)
240 return 0;
241 unit_exponent -= 1;
242 } else {
243 return 0;
244 }
245 break;
246
247 case ABS_RX:
248 case ABS_RY:
249 case ABS_RZ:
250 case ABS_TILT_X:
251 case ABS_TILT_Y:
252 if (field->unit == 0x14) { /* If degrees */
253 /* Convert to radians */
254 prev = logical_extents;
255 logical_extents *= 573;
256 if (logical_extents < prev)
257 return 0;
258 unit_exponent += 1;
259 } else if (field->unit != 0x12) { /* If not radians */
260 return 0;
261 }
262 break;
263
264 default:
265 return 0;
266 }
267
268 /* Apply negative unit exponent */
269 for (; unit_exponent < 0; unit_exponent++) {
270 prev = logical_extents;
271 logical_extents *= 10;
272 if (logical_extents < prev)
273 return 0;
274 }
275 /* Apply positive unit exponent */
276 for (; unit_exponent > 0; unit_exponent--) {
277 prev = physical_extents;
278 physical_extents *= 10;
279 if (physical_extents < prev)
280 return 0;
281 }
282
283 /* Calculate resolution */
284 return logical_extents / physical_extents;
285}
286
287#ifdef CONFIG_HID_BATTERY_STRENGTH
288static enum power_supply_property hidinput_battery_props[] = {
289 POWER_SUPPLY_PROP_PRESENT,
290 POWER_SUPPLY_PROP_ONLINE,
291 POWER_SUPPLY_PROP_CAPACITY,
292 POWER_SUPPLY_PROP_MODEL_NAME,
293 POWER_SUPPLY_PROP_STATUS,
294 POWER_SUPPLY_PROP_SCOPE,
295};
296
297#define HID_BATTERY_QUIRK_PERCENT (1 << 0) /* always reports percent */
298#define HID_BATTERY_QUIRK_FEATURE (1 << 1) /* ask for feature report */
299
300static const struct hid_device_id hid_battery_quirks[] = {
301 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
302 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI),
303 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
304 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
305 USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI),
306 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
307 {}
308};
309
310static unsigned find_battery_quirk(struct hid_device *hdev)
311{
312 unsigned quirks = 0;
313 const struct hid_device_id *match;
314
315 match = hid_match_id(hdev, hid_battery_quirks);
316 if (match != NULL)
317 quirks = match->driver_data;
318
319 return quirks;
320}
321
322static int hidinput_get_battery_property(struct power_supply *psy,
323 enum power_supply_property prop,
324 union power_supply_propval *val)
325{
326 struct hid_device *dev = container_of(psy, struct hid_device, battery);
327 int ret = 0;
328 __u8 buf[2] = {};
329
330 switch (prop) {
331 case POWER_SUPPLY_PROP_PRESENT:
332 case POWER_SUPPLY_PROP_ONLINE:
333 val->intval = 1;
334 break;
335
336 case POWER_SUPPLY_PROP_CAPACITY:
337 ret = dev->hid_get_raw_report(dev, dev->battery_report_id,
338 buf, sizeof(buf),
339 dev->battery_report_type);
340
341 if (ret != 2) {
342 if (ret >= 0)
343 ret = -EINVAL;
344 break;
345 }
346
347 if (dev->battery_min < dev->battery_max &&
348 buf[1] >= dev->battery_min &&
349 buf[1] <= dev->battery_max)
350 val->intval = (100 * (buf[1] - dev->battery_min)) /
351 (dev->battery_max - dev->battery_min);
352 break;
353
354 case POWER_SUPPLY_PROP_MODEL_NAME:
355 val->strval = dev->name;
356 break;
357
358 case POWER_SUPPLY_PROP_STATUS:
359 val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
360 break;
361
362 case POWER_SUPPLY_PROP_SCOPE:
363 val->intval = POWER_SUPPLY_SCOPE_DEVICE;
364 break;
365
366 default:
367 ret = -EINVAL;
368 break;
369 }
370
371 return ret;
372}
373
374static bool hidinput_setup_battery(struct hid_device *dev, unsigned report_type, struct hid_field *field)
375{
376 struct power_supply *battery = &dev->battery;
377 int ret;
378 unsigned quirks;
379 s32 min, max;
380
381 if (field->usage->hid != HID_DC_BATTERYSTRENGTH)
382 return false; /* no match */
383
384 if (battery->name != NULL)
385 goto out; /* already initialized? */
386
387 battery->name = kasprintf(GFP_KERNEL, "hid-%s-battery", dev->uniq);
388 if (battery->name == NULL)
389 goto out;
390
391 battery->type = POWER_SUPPLY_TYPE_BATTERY;
392 battery->properties = hidinput_battery_props;
393 battery->num_properties = ARRAY_SIZE(hidinput_battery_props);
394 battery->use_for_apm = 0;
395 battery->get_property = hidinput_get_battery_property;
396
397 quirks = find_battery_quirk(dev);
398
399 hid_dbg(dev, "device %x:%x:%x %d quirks %d\n",
400 dev->bus, dev->vendor, dev->product, dev->version, quirks);
401
402 min = field->logical_minimum;
403 max = field->logical_maximum;
404
405 if (quirks & HID_BATTERY_QUIRK_PERCENT) {
406 min = 0;
407 max = 100;
408 }
409
410 if (quirks & HID_BATTERY_QUIRK_FEATURE)
411 report_type = HID_FEATURE_REPORT;
412
413 dev->battery_min = min;
414 dev->battery_max = max;
415 dev->battery_report_type = report_type;
416 dev->battery_report_id = field->report->id;
417
418 ret = power_supply_register(&dev->dev, battery);
419 if (ret != 0) {
420 hid_warn(dev, "can't register power supply: %d\n", ret);
421 kfree(battery->name);
422 battery->name = NULL;
423 }
424
425 power_supply_powers(battery, &dev->dev);
426
427out:
428 return true;
429}
430
431static void hidinput_cleanup_battery(struct hid_device *dev)
432{
433 if (!dev->battery.name)
434 return;
435
436 power_supply_unregister(&dev->battery);
437 kfree(dev->battery.name);
438 dev->battery.name = NULL;
439}
440#else /* !CONFIG_HID_BATTERY_STRENGTH */
441static bool hidinput_setup_battery(struct hid_device *dev, unsigned report_type,
442 struct hid_field *field)
443{
444 return false;
445}
446
447static void hidinput_cleanup_battery(struct hid_device *dev)
448{
449}
450#endif /* CONFIG_HID_BATTERY_STRENGTH */
451
452static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
453 struct hid_usage *usage)
454{
455 struct input_dev *input = hidinput->input;
456 struct hid_device *device = input_get_drvdata(input);
457 int max = 0, code;
458 unsigned long *bit = NULL;
459
460 field->hidinput = hidinput;
461
462 if (field->flags & HID_MAIN_ITEM_CONSTANT)
463 goto ignore;
464
465 /* only LED usages are supported in output fields */
466 if (field->report_type == HID_OUTPUT_REPORT &&
467 (usage->hid & HID_USAGE_PAGE) != HID_UP_LED) {
468 goto ignore;
469 }
470
471 if (device->driver->input_mapping) {
472 int ret = device->driver->input_mapping(device, hidinput, field,
473 usage, &bit, &max);
474 if (ret > 0)
475 goto mapped;
476 if (ret < 0)
477 goto ignore;
478 }
479
480 switch (usage->hid & HID_USAGE_PAGE) {
481 case HID_UP_UNDEFINED:
482 goto ignore;
483
484 case HID_UP_KEYBOARD:
485 set_bit(EV_REP, input->evbit);
486
487 if ((usage->hid & HID_USAGE) < 256) {
488 if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
489 map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
490 } else
491 map_key(KEY_UNKNOWN);
492
493 break;
494
495 case HID_UP_BUTTON:
496 code = ((usage->hid - 1) & HID_USAGE);
497
498 switch (field->application) {
499 case HID_GD_MOUSE:
500 case HID_GD_POINTER: code += BTN_MOUSE; break;
501 case HID_GD_JOYSTICK:
502 if (code <= 0xf)
503 code += BTN_JOYSTICK;
504 else
505 code += BTN_TRIGGER_HAPPY;
506 break;
507 case HID_GD_GAMEPAD: code += BTN_GAMEPAD; break;
508 default:
509 switch (field->physical) {
510 case HID_GD_MOUSE:
511 case HID_GD_POINTER: code += BTN_MOUSE; break;
512 case HID_GD_JOYSTICK: code += BTN_JOYSTICK; break;
513 case HID_GD_GAMEPAD: code += BTN_GAMEPAD; break;
514 default: code += BTN_MISC;
515 }
516 }
517
518 map_key(code);
519 break;
520
521 case HID_UP_SIMULATION:
522 switch (usage->hid & 0xffff) {
523 case 0xba: map_abs(ABS_RUDDER); break;
524 case 0xbb: map_abs(ABS_THROTTLE); break;
525 case 0xc4: map_abs(ABS_GAS); break;
526 case 0xc5: map_abs(ABS_BRAKE); break;
527 case 0xc8: map_abs(ABS_WHEEL); break;
528 default: goto ignore;
529 }
530 break;
531
532 case HID_UP_GENDESK:
533 if ((usage->hid & 0xf0) == 0x80) { /* SystemControl */
534 switch (usage->hid & 0xf) {
535 case 0x1: map_key_clear(KEY_POWER); break;
536 case 0x2: map_key_clear(KEY_SLEEP); break;
537 case 0x3: map_key_clear(KEY_WAKEUP); break;
538 case 0x4: map_key_clear(KEY_CONTEXT_MENU); break;
539 case 0x5: map_key_clear(KEY_MENU); break;
540 case 0x6: map_key_clear(KEY_PROG1); break;
541 case 0x7: map_key_clear(KEY_HELP); break;
542 case 0x8: map_key_clear(KEY_EXIT); break;
543 case 0x9: map_key_clear(KEY_SELECT); break;
544 case 0xa: map_key_clear(KEY_RIGHT); break;
545 case 0xb: map_key_clear(KEY_LEFT); break;
546 case 0xc: map_key_clear(KEY_UP); break;
547 case 0xd: map_key_clear(KEY_DOWN); break;
548 case 0xe: map_key_clear(KEY_POWER2); break;
549 case 0xf: map_key_clear(KEY_RESTART); break;
550 default: goto unknown;
551 }
552 break;
553 }
554
555 if ((usage->hid & 0xf0) == 0x90) { /* D-pad */
556 switch (usage->hid) {
557 case HID_GD_UP: usage->hat_dir = 1; break;
558 case HID_GD_DOWN: usage->hat_dir = 5; break;
559 case HID_GD_RIGHT: usage->hat_dir = 3; break;
560 case HID_GD_LEFT: usage->hat_dir = 7; break;
561 default: goto unknown;
562 }
563 if (field->dpad) {
564 map_abs(field->dpad);
565 goto ignore;
566 }
567 map_abs(ABS_HAT0X);
568 break;
569 }
570
571 switch (usage->hid) {
572 /* These usage IDs map directly to the usage codes. */
573 case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
574 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
575 case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL:
576 if (field->flags & HID_MAIN_ITEM_RELATIVE)
577 map_rel(usage->hid & 0xf);
578 else
579 map_abs(usage->hid & 0xf);
580 break;
581
582 case HID_GD_HATSWITCH:
583 usage->hat_min = field->logical_minimum;
584 usage->hat_max = field->logical_maximum;
585 map_abs(ABS_HAT0X);
586 break;
587
588 case HID_GD_START: map_key_clear(BTN_START); break;
589 case HID_GD_SELECT: map_key_clear(BTN_SELECT); break;
590
591 default: goto unknown;
592 }
593
594 break;
595
596 case HID_UP_LED:
597 switch (usage->hid & 0xffff) { /* HID-Value: */
598 case 0x01: map_led (LED_NUML); break; /* "Num Lock" */
599 case 0x02: map_led (LED_CAPSL); break; /* "Caps Lock" */
600 case 0x03: map_led (LED_SCROLLL); break; /* "Scroll Lock" */
601 case 0x04: map_led (LED_COMPOSE); break; /* "Compose" */
602 case 0x05: map_led (LED_KANA); break; /* "Kana" */
603 case 0x27: map_led (LED_SLEEP); break; /* "Stand-By" */
604 case 0x4c: map_led (LED_SUSPEND); break; /* "System Suspend" */
605 case 0x09: map_led (LED_MUTE); break; /* "Mute" */
606 case 0x4b: map_led (LED_MISC); break; /* "Generic Indicator" */
607 case 0x19: map_led (LED_MAIL); break; /* "Message Waiting" */
608 case 0x4d: map_led (LED_CHARGING); break; /* "External Power Connected" */
609
610 default: goto ignore;
611 }
612 break;
613
614 case HID_UP_DIGITIZER:
615 switch (usage->hid & 0xff) {
616 case 0x00: /* Undefined */
617 goto ignore;
618
619 case 0x30: /* TipPressure */
620 if (!test_bit(BTN_TOUCH, input->keybit)) {
621 device->quirks |= HID_QUIRK_NOTOUCH;
622 set_bit(EV_KEY, input->evbit);
623 set_bit(BTN_TOUCH, input->keybit);
624 }
625 map_abs_clear(ABS_PRESSURE);
626 break;
627
628 case 0x32: /* InRange */
629 switch (field->physical & 0xff) {
630 case 0x21: map_key(BTN_TOOL_MOUSE); break;
631 case 0x22: map_key(BTN_TOOL_FINGER); break;
632 default: map_key(BTN_TOOL_PEN); break;
633 }
634 break;
635
636 case 0x3c: /* Invert */
637 map_key_clear(BTN_TOOL_RUBBER);
638 break;
639
640 case 0x3d: /* X Tilt */
641 map_abs_clear(ABS_TILT_X);
642 break;
643
644 case 0x3e: /* Y Tilt */
645 map_abs_clear(ABS_TILT_Y);
646 break;
647
648 case 0x33: /* Touch */
649 case 0x42: /* TipSwitch */
650 case 0x43: /* TipSwitch2 */
651 device->quirks &= ~HID_QUIRK_NOTOUCH;
652 map_key_clear(BTN_TOUCH);
653 break;
654
655 case 0x44: /* BarrelSwitch */
656 map_key_clear(BTN_STYLUS);
657 break;
658
659 case 0x46: /* TabletPick */
660 map_key_clear(BTN_STYLUS2);
661 break;
662
663 default: goto unknown;
664 }
665 break;
666
667 case HID_UP_CONSUMER: /* USB HUT v1.12, pages 75-84 */
668 switch (usage->hid & HID_USAGE) {
669 case 0x000: goto ignore;
670 case 0x030: map_key_clear(KEY_POWER); break;
671 case 0x031: map_key_clear(KEY_RESTART); break;
672 case 0x032: map_key_clear(KEY_SLEEP); break;
673 case 0x034: map_key_clear(KEY_SLEEP); break;
674 case 0x035: map_key_clear(KEY_KBDILLUMTOGGLE); break;
675 case 0x036: map_key_clear(BTN_MISC); break;
676
677 case 0x040: map_key_clear(KEY_MENU); break; /* Menu */
678 case 0x041: map_key_clear(KEY_SELECT); break; /* Menu Pick */
679 case 0x042: map_key_clear(KEY_UP); break; /* Menu Up */
680 case 0x043: map_key_clear(KEY_DOWN); break; /* Menu Down */
681 case 0x044: map_key_clear(KEY_LEFT); break; /* Menu Left */
682 case 0x045: map_key_clear(KEY_RIGHT); break; /* Menu Right */
683 case 0x046: map_key_clear(KEY_ESC); break; /* Menu Escape */
684 case 0x047: map_key_clear(KEY_KPPLUS); break; /* Menu Value Increase */
685 case 0x048: map_key_clear(KEY_KPMINUS); break; /* Menu Value Decrease */
686
687 case 0x060: map_key_clear(KEY_INFO); break; /* Data On Screen */
688 case 0x061: map_key_clear(KEY_SUBTITLE); break; /* Closed Caption */
689 case 0x063: map_key_clear(KEY_VCR); break; /* VCR/TV */
690 case 0x065: map_key_clear(KEY_CAMERA); break; /* Snapshot */
691 case 0x069: map_key_clear(KEY_RED); break;
692 case 0x06a: map_key_clear(KEY_GREEN); break;
693 case 0x06b: map_key_clear(KEY_BLUE); break;
694 case 0x06c: map_key_clear(KEY_YELLOW); break;
695 case 0x06d: map_key_clear(KEY_ZOOM); break;
696
697 case 0x082: map_key_clear(KEY_VIDEO_NEXT); break;
698 case 0x083: map_key_clear(KEY_LAST); break;
699 case 0x084: map_key_clear(KEY_ENTER); break;
700 case 0x088: map_key_clear(KEY_PC); break;
701 case 0x089: map_key_clear(KEY_TV); break;
702 case 0x08a: map_key_clear(KEY_WWW); break;
703 case 0x08b: map_key_clear(KEY_DVD); break;
704 case 0x08c: map_key_clear(KEY_PHONE); break;
705 case 0x08d: map_key_clear(KEY_PROGRAM); break;
706 case 0x08e: map_key_clear(KEY_VIDEOPHONE); break;
707 case 0x08f: map_key_clear(KEY_GAMES); break;
708 case 0x090: map_key_clear(KEY_MEMO); break;
709 case 0x091: map_key_clear(KEY_CD); break;
710 case 0x092: map_key_clear(KEY_VCR); break;
711 case 0x093: map_key_clear(KEY_TUNER); break;
712 case 0x094: map_key_clear(KEY_EXIT); break;
713 case 0x095: map_key_clear(KEY_HELP); break;
714 case 0x096: map_key_clear(KEY_TAPE); break;
715 case 0x097: map_key_clear(KEY_TV2); break;
716 case 0x098: map_key_clear(KEY_SAT); break;
717 case 0x09a: map_key_clear(KEY_PVR); break;
718
719 case 0x09c: map_key_clear(KEY_CHANNELUP); break;
720 case 0x09d: map_key_clear(KEY_CHANNELDOWN); break;
721 case 0x0a0: map_key_clear(KEY_VCR2); break;
722
723 case 0x0b0: map_key_clear(KEY_PLAY); break;
724 case 0x0b1: map_key_clear(KEY_PAUSE); break;
725 case 0x0b2: map_key_clear(KEY_RECORD); break;
726 case 0x0b3: map_key_clear(KEY_FASTFORWARD); break;
727 case 0x0b4: map_key_clear(KEY_REWIND); break;
728 case 0x0b5: map_key_clear(KEY_NEXTSONG); break;
729 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG); break;
730 case 0x0b7: map_key_clear(KEY_STOPCD); break;
731 case 0x0b8: map_key_clear(KEY_EJECTCD); break;
732 case 0x0bc: map_key_clear(KEY_MEDIA_REPEAT); break;
733 case 0x0b9: map_key_clear(KEY_SHUFFLE); break;
734 case 0x0bf: map_key_clear(KEY_SLOW); break;
735
736 case 0x0cd: map_key_clear(KEY_PLAYPAUSE); break;
737 case 0x0e0: map_abs_clear(ABS_VOLUME); break;
738 case 0x0e2: map_key_clear(KEY_MUTE); break;
739 case 0x0e5: map_key_clear(KEY_BASSBOOST); break;
740 case 0x0e9: map_key_clear(KEY_VOLUMEUP); break;
741 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN); break;
742 case 0x0f5: map_key_clear(KEY_SLOW); break;
743
744 case 0x182: map_key_clear(KEY_BOOKMARKS); break;
745 case 0x183: map_key_clear(KEY_CONFIG); break;
746 case 0x184: map_key_clear(KEY_WORDPROCESSOR); break;
747 case 0x185: map_key_clear(KEY_EDITOR); break;
748 case 0x186: map_key_clear(KEY_SPREADSHEET); break;
749 case 0x187: map_key_clear(KEY_GRAPHICSEDITOR); break;
750 case 0x188: map_key_clear(KEY_PRESENTATION); break;
751 case 0x189: map_key_clear(KEY_DATABASE); break;
752 case 0x18a: map_key_clear(KEY_MAIL); break;
753 case 0x18b: map_key_clear(KEY_NEWS); break;
754 case 0x18c: map_key_clear(KEY_VOICEMAIL); break;
755 case 0x18d: map_key_clear(KEY_ADDRESSBOOK); break;
756 case 0x18e: map_key_clear(KEY_CALENDAR); break;
757 case 0x191: map_key_clear(KEY_FINANCE); break;
758 case 0x192: map_key_clear(KEY_CALC); break;
759 case 0x193: map_key_clear(KEY_PLAYER); break;
760 case 0x194: map_key_clear(KEY_FILE); break;
761 case 0x196: map_key_clear(KEY_WWW); break;
762 case 0x199: map_key_clear(KEY_CHAT); break;
763 case 0x19c: map_key_clear(KEY_LOGOFF); break;
764 case 0x19e: map_key_clear(KEY_COFFEE); break;
765 case 0x1a6: map_key_clear(KEY_HELP); break;
766 case 0x1a7: map_key_clear(KEY_DOCUMENTS); break;
767 case 0x1ab: map_key_clear(KEY_SPELLCHECK); break;
768 case 0x1ae: map_key_clear(KEY_KEYBOARD); break;
769 case 0x1b6: map_key_clear(KEY_IMAGES); break;
770 case 0x1b7: map_key_clear(KEY_AUDIO); break;
771 case 0x1b8: map_key_clear(KEY_VIDEO); break;
772 case 0x1bc: map_key_clear(KEY_MESSENGER); break;
773 case 0x1bd: map_key_clear(KEY_INFO); break;
774 case 0x201: map_key_clear(KEY_NEW); break;
775 case 0x202: map_key_clear(KEY_OPEN); break;
776 case 0x203: map_key_clear(KEY_CLOSE); break;
777 case 0x204: map_key_clear(KEY_EXIT); break;
778 case 0x207: map_key_clear(KEY_SAVE); break;
779 case 0x208: map_key_clear(KEY_PRINT); break;
780 case 0x209: map_key_clear(KEY_PROPS); break;
781 case 0x21a: map_key_clear(KEY_UNDO); break;
782 case 0x21b: map_key_clear(KEY_COPY); break;
783 case 0x21c: map_key_clear(KEY_CUT); break;
784 case 0x21d: map_key_clear(KEY_PASTE); break;
785 case 0x21f: map_key_clear(KEY_FIND); break;
786 case 0x221: map_key_clear(KEY_SEARCH); break;
787 case 0x222: map_key_clear(KEY_GOTO); break;
788 case 0x223: map_key_clear(KEY_HOMEPAGE); break;
789 case 0x224: map_key_clear(KEY_BACK); break;
790 case 0x225: map_key_clear(KEY_FORWARD); break;
791 case 0x226: map_key_clear(KEY_STOP); break;
792 case 0x227: map_key_clear(KEY_REFRESH); break;
793 case 0x22a: map_key_clear(KEY_BOOKMARKS); break;
794 case 0x22d: map_key_clear(KEY_ZOOMIN); break;
795 case 0x22e: map_key_clear(KEY_ZOOMOUT); break;
796 case 0x22f: map_key_clear(KEY_ZOOMRESET); break;
797 case 0x233: map_key_clear(KEY_SCROLLUP); break;
798 case 0x234: map_key_clear(KEY_SCROLLDOWN); break;
799 case 0x238: map_rel(REL_HWHEEL); break;
800 case 0x23d: map_key_clear(KEY_EDIT); break;
801 case 0x25f: map_key_clear(KEY_CANCEL); break;
802 case 0x269: map_key_clear(KEY_INSERT); break;
803 case 0x26a: map_key_clear(KEY_DELETE); break;
804 case 0x279: map_key_clear(KEY_REDO); break;
805
806 case 0x289: map_key_clear(KEY_REPLY); break;
807 case 0x28b: map_key_clear(KEY_FORWARDMAIL); break;
808 case 0x28c: map_key_clear(KEY_SEND); break;
809
810 default: goto ignore;
811 }
812 break;
813
814 case HID_UP_GENDEVCTRLS:
815 if (hidinput_setup_battery(device, HID_INPUT_REPORT, field))
816 goto ignore;
817 else
818 goto unknown;
819 break;
820
821 case HID_UP_HPVENDOR: /* Reported on a Dutch layout HP5308 */
822 set_bit(EV_REP, input->evbit);
823 switch (usage->hid & HID_USAGE) {
824 case 0x021: map_key_clear(KEY_PRINT); break;
825 case 0x070: map_key_clear(KEY_HP); break;
826 case 0x071: map_key_clear(KEY_CAMERA); break;
827 case 0x072: map_key_clear(KEY_SOUND); break;
828 case 0x073: map_key_clear(KEY_QUESTION); break;
829 case 0x080: map_key_clear(KEY_EMAIL); break;
830 case 0x081: map_key_clear(KEY_CHAT); break;
831 case 0x082: map_key_clear(KEY_SEARCH); break;
832 case 0x083: map_key_clear(KEY_CONNECT); break;
833 case 0x084: map_key_clear(KEY_FINANCE); break;
834 case 0x085: map_key_clear(KEY_SPORT); break;
835 case 0x086: map_key_clear(KEY_SHOP); break;
836 default: goto ignore;
837 }
838 break;
839
840 case HID_UP_MSVENDOR:
841 goto ignore;
842
843 case HID_UP_CUSTOM: /* Reported on Logitech and Apple USB keyboards */
844 set_bit(EV_REP, input->evbit);
845 goto ignore;
846
847 case HID_UP_LOGIVENDOR:
848 goto ignore;
849
850 case HID_UP_PID:
851 switch (usage->hid & HID_USAGE) {
852 case 0xa4: map_key_clear(BTN_DEAD); break;
853 default: goto ignore;
854 }
855 break;
856
857 default:
858 unknown:
859 if (field->report_size == 1) {
860 if (field->report->type == HID_OUTPUT_REPORT) {
861 map_led(LED_MISC);
862 break;
863 }
864 map_key(BTN_MISC);
865 break;
866 }
867 if (field->flags & HID_MAIN_ITEM_RELATIVE) {
868 map_rel(REL_MISC);
869 break;
870 }
871 map_abs(ABS_MISC);
872 break;
873 }
874
875mapped:
876 if (device->driver->input_mapped && device->driver->input_mapped(device,
877 hidinput, field, usage, &bit, &max) < 0)
878 goto ignore;
879
880 set_bit(usage->type, input->evbit);
881
882 while (usage->code <= max && test_and_set_bit(usage->code, bit))
883 usage->code = find_next_zero_bit(bit, max + 1, usage->code);
884
885 if (usage->code > max)
886 goto ignore;
887
888
889 if (usage->type == EV_ABS) {
890
891 int a = field->logical_minimum;
892 int b = field->logical_maximum;
893
894 if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
895 a = field->logical_minimum = 0;
896 b = field->logical_maximum = 255;
897 }
898
899 if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
900 input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
901 else input_set_abs_params(input, usage->code, a, b, 0, 0);
902
903 input_abs_set_res(input, usage->code,
904 hidinput_calc_abs_res(field, usage->code));
905
906 /* use a larger default input buffer for MT devices */
907 if (usage->code == ABS_MT_POSITION_X && input->hint_events_per_packet == 0)
908 input_set_events_per_packet(input, 60);
909 }
910
911 if (usage->type == EV_ABS &&
912 (usage->hat_min < usage->hat_max || usage->hat_dir)) {
913 int i;
914 for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
915 input_set_abs_params(input, i, -1, 1, 0, 0);
916 set_bit(i, input->absbit);
917 }
918 if (usage->hat_dir && !field->dpad)
919 field->dpad = usage->code;
920 }
921
922 /* for those devices which produce Consumer volume usage as relative,
923 * we emulate pressing volumeup/volumedown appropriate number of times
924 * in hidinput_hid_event()
925 */
926 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
927 (usage->code == ABS_VOLUME)) {
928 set_bit(KEY_VOLUMEUP, input->keybit);
929 set_bit(KEY_VOLUMEDOWN, input->keybit);
930 }
931
932 if (usage->type == EV_KEY) {
933 set_bit(EV_MSC, input->evbit);
934 set_bit(MSC_SCAN, input->mscbit);
935 }
936
937ignore:
938 return;
939
940}
941
942void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
943{
944 struct input_dev *input;
945 unsigned *quirks = &hid->quirks;
946
947 if (!field->hidinput)
948 return;
949
950 input = field->hidinput->input;
951
952 if (!usage->type)
953 return;
954
955 if (usage->hat_min < usage->hat_max || usage->hat_dir) {
956 int hat_dir = usage->hat_dir;
957 if (!hat_dir)
958 hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
959 if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
960 input_event(input, usage->type, usage->code , hid_hat_to_axis[hat_dir].x);
961 input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
962 return;
963 }
964
965 if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */
966 *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
967 return;
968 }
969
970 if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */
971 if (value) {
972 input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
973 return;
974 }
975 input_event(input, usage->type, usage->code, 0);
976 input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
977 return;
978 }
979
980 if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */
981 int a = field->logical_minimum;
982 int b = field->logical_maximum;
983 input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3));
984 }
985
986 if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
987 dbg_hid("Maximum Effects - %d\n",value);
988 return;
989 }
990
991 if (usage->hid == (HID_UP_PID | 0x7fUL)) {
992 dbg_hid("PID Pool Report\n");
993 return;
994 }
995
996 if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
997 return;
998
999 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
1000 (usage->code == ABS_VOLUME)) {
1001 int count = abs(value);
1002 int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN;
1003 int i;
1004
1005 for (i = 0; i < count; i++) {
1006 input_event(input, EV_KEY, direction, 1);
1007 input_sync(input);
1008 input_event(input, EV_KEY, direction, 0);
1009 input_sync(input);
1010 }
1011 return;
1012 }
1013
1014 /*
1015 * Ignore out-of-range values as per HID specification,
1016 * section 5.10 and 6.2.25
1017 */
1018 if ((field->flags & HID_MAIN_ITEM_VARIABLE) &&
1019 (value < field->logical_minimum ||
1020 value > field->logical_maximum)) {
1021 dbg_hid("Ignoring out-of-range value %x\n", value);
1022 return;
1023 }
1024
1025 /* report the usage code as scancode if the key status has changed */
1026 if (usage->type == EV_KEY && !!test_bit(usage->code, input->key) != value)
1027 input_event(input, EV_MSC, MSC_SCAN, usage->hid);
1028
1029 input_event(input, usage->type, usage->code, value);
1030
1031 if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY))
1032 input_event(input, usage->type, usage->code, 0);
1033}
1034
1035void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
1036{
1037 struct hid_input *hidinput;
1038
1039 if (hid->quirks & HID_QUIRK_NO_INPUT_SYNC)
1040 return;
1041
1042 list_for_each_entry(hidinput, &hid->inputs, list)
1043 input_sync(hidinput->input);
1044}
1045EXPORT_SYMBOL_GPL(hidinput_report_event);
1046
1047int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
1048{
1049 struct hid_report *report;
1050 int i, j;
1051
1052 list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
1053 for (i = 0; i < report->maxfield; i++) {
1054 *field = report->field[i];
1055 for (j = 0; j < (*field)->maxusage; j++)
1056 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
1057 return j;
1058 }
1059 }
1060 return -1;
1061}
1062EXPORT_SYMBOL_GPL(hidinput_find_field);
1063
1064struct hid_field *hidinput_get_led_field(struct hid_device *hid)
1065{
1066 struct hid_report *report;
1067 struct hid_field *field;
1068 int i, j;
1069
1070 list_for_each_entry(report,
1071 &hid->report_enum[HID_OUTPUT_REPORT].report_list,
1072 list) {
1073 for (i = 0; i < report->maxfield; i++) {
1074 field = report->field[i];
1075 for (j = 0; j < field->maxusage; j++)
1076 if (field->usage[j].type == EV_LED)
1077 return field;
1078 }
1079 }
1080 return NULL;
1081}
1082EXPORT_SYMBOL_GPL(hidinput_get_led_field);
1083
1084unsigned int hidinput_count_leds(struct hid_device *hid)
1085{
1086 struct hid_report *report;
1087 struct hid_field *field;
1088 int i, j;
1089 unsigned int count = 0;
1090
1091 list_for_each_entry(report,
1092 &hid->report_enum[HID_OUTPUT_REPORT].report_list,
1093 list) {
1094 for (i = 0; i < report->maxfield; i++) {
1095 field = report->field[i];
1096 for (j = 0; j < field->maxusage; j++)
1097 if (field->usage[j].type == EV_LED &&
1098 field->value[j])
1099 count += 1;
1100 }
1101 }
1102 return count;
1103}
1104EXPORT_SYMBOL_GPL(hidinput_count_leds);
1105
1106static int hidinput_open(struct input_dev *dev)
1107{
1108 struct hid_device *hid = input_get_drvdata(dev);
1109
1110 return hid_hw_open(hid);
1111}
1112
1113static void hidinput_close(struct input_dev *dev)
1114{
1115 struct hid_device *hid = input_get_drvdata(dev);
1116
1117 hid_hw_close(hid);
1118}
1119
1120static void report_features(struct hid_device *hid)
1121{
1122 struct hid_driver *drv = hid->driver;
1123 struct hid_report_enum *rep_enum;
1124 struct hid_report *rep;
1125 int i, j;
1126
1127 rep_enum = &hid->report_enum[HID_FEATURE_REPORT];
1128 list_for_each_entry(rep, &rep_enum->report_list, list)
1129 for (i = 0; i < rep->maxfield; i++)
1130 for (j = 0; j < rep->field[i]->maxusage; j++) {
1131 /* Verify if Battery Strength feature is available */
1132 hidinput_setup_battery(hid, HID_FEATURE_REPORT, rep->field[i]);
1133
1134 if (drv->feature_mapping)
1135 drv->feature_mapping(hid, rep->field[i],
1136 rep->field[i]->usage + j);
1137 }
1138}
1139
1140/*
1141 * Register the input device; print a message.
1142 * Configure the input layer interface
1143 * Read all reports and initialize the absolute field values.
1144 */
1145
1146int hidinput_connect(struct hid_device *hid, unsigned int force)
1147{
1148 struct hid_report *report;
1149 struct hid_input *hidinput = NULL;
1150 struct input_dev *input_dev;
1151 int i, j, k;
1152
1153 INIT_LIST_HEAD(&hid->inputs);
1154
1155 if (!force) {
1156 for (i = 0; i < hid->maxcollection; i++) {
1157 struct hid_collection *col = &hid->collection[i];
1158 if (col->type == HID_COLLECTION_APPLICATION ||
1159 col->type == HID_COLLECTION_PHYSICAL)
1160 if (IS_INPUT_APPLICATION(col->usage))
1161 break;
1162 }
1163
1164 if (i == hid->maxcollection)
1165 return -1;
1166 }
1167
1168 report_features(hid);
1169
1170 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
1171 if (k == HID_OUTPUT_REPORT &&
1172 hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
1173 continue;
1174
1175 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
1176
1177 if (!report->maxfield)
1178 continue;
1179
1180 if (!hidinput) {
1181 hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
1182 input_dev = input_allocate_device();
1183 if (!hidinput || !input_dev) {
1184 kfree(hidinput);
1185 input_free_device(input_dev);
1186 hid_err(hid, "Out of memory during hid input probe\n");
1187 goto out_unwind;
1188 }
1189
1190 input_set_drvdata(input_dev, hid);
1191 input_dev->event =
1192 hid->ll_driver->hidinput_input_event;
1193 input_dev->open = hidinput_open;
1194 input_dev->close = hidinput_close;
1195 input_dev->setkeycode = hidinput_setkeycode;
1196 input_dev->getkeycode = hidinput_getkeycode;
1197
1198 input_dev->name = hid->name;
1199 input_dev->phys = hid->phys;
1200 input_dev->uniq = hid->uniq;
1201 input_dev->id.bustype = hid->bus;
1202 input_dev->id.vendor = hid->vendor;
1203 input_dev->id.product = hid->product;
1204 input_dev->id.version = hid->version;
1205 input_dev->dev.parent = hid->dev.parent;
1206 hidinput->input = input_dev;
1207 list_add_tail(&hidinput->list, &hid->inputs);
1208 }
1209
1210 for (i = 0; i < report->maxfield; i++)
1211 for (j = 0; j < report->field[i]->maxusage; j++)
1212 hidinput_configure_usage(hidinput, report->field[i],
1213 report->field[i]->usage + j);
1214
1215 if (hid->quirks & HID_QUIRK_MULTI_INPUT) {
1216 /* This will leave hidinput NULL, so that it
1217 * allocates another one if we have more inputs on
1218 * the same interface. Some devices (e.g. Happ's
1219 * UGCI) cram a lot of unrelated inputs into the
1220 * same interface. */
1221 hidinput->report = report;
1222 if (input_register_device(hidinput->input))
1223 goto out_cleanup;
1224 hidinput = NULL;
1225 }
1226 }
1227 }
1228
1229 if (hidinput && input_register_device(hidinput->input))
1230 goto out_cleanup;
1231
1232 return 0;
1233
1234out_cleanup:
1235 list_del(&hidinput->list);
1236 input_free_device(hidinput->input);
1237 kfree(hidinput);
1238out_unwind:
1239 /* unwind the ones we already registered */
1240 hidinput_disconnect(hid);
1241
1242 return -1;
1243}
1244EXPORT_SYMBOL_GPL(hidinput_connect);
1245
1246void hidinput_disconnect(struct hid_device *hid)
1247{
1248 struct hid_input *hidinput, *next;
1249
1250 hidinput_cleanup_battery(hid);
1251
1252 list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
1253 list_del(&hidinput->list);
1254 input_unregister_device(hidinput->input);
1255 kfree(hidinput);
1256 }
1257}
1258EXPORT_SYMBOL_GPL(hidinput_disconnect);
1259