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mISDN: Added PH_* state info to tei manager.
[linux-2.6/cjktty.git] / drivers / hid / hid-input.c
blob002781c5a6164040e90a6a5bab40ed982e50b508
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
39 static 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
58 static 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
73 static 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
79 static 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
88 static bool match_index(struct hid_usage *usage,
89 unsigned int cur_idx, unsigned int idx)
90 {
91 return cur_idx == idx;
92 }
93
94 typedef bool (*hid_usage_cmp_t)(struct hid_usage *usage,
95 unsigned int cur_idx, unsigned int val);
96
97 static 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
126 static 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
143 static 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
164 static 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 */
211 static __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 if (code == ABS_X || code == ABS_Y || code == ABS_Z) {
229 if (field->unit == 0x11) { /* If centimeters */
230 /* Convert to millimeters */
231 unit_exponent += 1;
232 } else if (field->unit == 0x13) { /* If inches */
233 /* Convert to millimeters */
234 prev = physical_extents;
235 physical_extents *= 254;
236 if (physical_extents < prev)
237 return 0;
238 unit_exponent -= 1;
239 } else {
240 return 0;
241 }
242 } else if (code == ABS_RX || code == ABS_RY || code == ABS_RZ) {
243 if (field->unit == 0x14) { /* If degrees */
244 /* Convert to radians */
245 prev = logical_extents;
246 logical_extents *= 573;
247 if (logical_extents < prev)
248 return 0;
249 unit_exponent += 1;
250 } else if (field->unit != 0x12) { /* If not radians */
251 return 0;
252 }
253 } else {
254 return 0;
255 }
256
257 /* Apply negative unit exponent */
258 for (; unit_exponent < 0; unit_exponent++) {
259 prev = logical_extents;
260 logical_extents *= 10;
261 if (logical_extents < prev)
262 return 0;
263 }
264 /* Apply positive unit exponent */
265 for (; unit_exponent > 0; unit_exponent--) {
266 prev = physical_extents;
267 physical_extents *= 10;
268 if (physical_extents < prev)
269 return 0;
270 }
271
272 /* Calculate resolution */
273 return logical_extents / physical_extents;
274 }
275
276 #ifdef CONFIG_HID_BATTERY_STRENGTH
277 static enum power_supply_property hidinput_battery_props[] = {
278 POWER_SUPPLY_PROP_PRESENT,
279 POWER_SUPPLY_PROP_ONLINE,
280 POWER_SUPPLY_PROP_CAPACITY,
281 POWER_SUPPLY_PROP_MODEL_NAME,
282 POWER_SUPPLY_PROP_STATUS,
283 POWER_SUPPLY_PROP_SCOPE,
284 };
285
286 #define HID_BATTERY_QUIRK_PERCENT (1 << 0) /* always reports percent */
287 #define HID_BATTERY_QUIRK_FEATURE (1 << 1) /* ask for feature report */
288
289 static const struct hid_device_id hid_battery_quirks[] = {
290 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
291 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI),
292 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
293 {}
294 };
295
296 static unsigned find_battery_quirk(struct hid_device *hdev)
297 {
298 unsigned quirks = 0;
299 const struct hid_device_id *match;
300
301 match = hid_match_id(hdev, hid_battery_quirks);
302 if (match != NULL)
303 quirks = match->driver_data;
304
305 return quirks;
306 }
307
308 static int hidinput_get_battery_property(struct power_supply *psy,
309 enum power_supply_property prop,
310 union power_supply_propval *val)
311 {
312 struct hid_device *dev = container_of(psy, struct hid_device, battery);
313 int ret = 0;
314 __u8 buf[2] = {};
315
316 switch (prop) {
317 case POWER_SUPPLY_PROP_PRESENT:
318 case POWER_SUPPLY_PROP_ONLINE:
319 val->intval = 1;
320 break;
321
322 case POWER_SUPPLY_PROP_CAPACITY:
323 ret = dev->hid_get_raw_report(dev, dev->battery_report_id,
324 buf, sizeof(buf),
325 dev->battery_report_type);
326
327 if (ret != 2) {
328 if (ret >= 0)
329 ret = -EINVAL;
330 break;
331 }
332
333 if (dev->battery_min < dev->battery_max &&
334 buf[1] >= dev->battery_min &&
335 buf[1] <= dev->battery_max)
336 val->intval = (100 * (buf[1] - dev->battery_min)) /
337 (dev->battery_max - dev->battery_min);
338 break;
339
340 case POWER_SUPPLY_PROP_MODEL_NAME:
341 val->strval = dev->name;
342 break;
343
344 case POWER_SUPPLY_PROP_STATUS:
345 val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
346 break;
347
348 case POWER_SUPPLY_PROP_SCOPE:
349 val->intval = POWER_SUPPLY_SCOPE_DEVICE;
350 break;
351
352 default:
353 ret = -EINVAL;
354 break;
355 }
356
357 return ret;
358 }
359
360 static bool hidinput_setup_battery(struct hid_device *dev, unsigned report_type, struct hid_field *field)
361 {
362 struct power_supply *battery = &dev->battery;
363 int ret;
364 unsigned quirks;
365 s32 min, max;
366
367 if (field->usage->hid != HID_DC_BATTERYSTRENGTH)
368 return false; /* no match */
369
370 if (battery->name != NULL)
371 goto out; /* already initialized? */
372
373 battery->name = kasprintf(GFP_KERNEL, "hid-%s-battery", dev->uniq);
374 if (battery->name == NULL)
375 goto out;
376
377 battery->type = POWER_SUPPLY_TYPE_BATTERY;
378 battery->properties = hidinput_battery_props;
379 battery->num_properties = ARRAY_SIZE(hidinput_battery_props);
380 battery->use_for_apm = 0;
381 battery->get_property = hidinput_get_battery_property;
382
383 quirks = find_battery_quirk(dev);
384
385 hid_dbg(dev, "device %x:%x:%x %d quirks %d\n",
386 dev->bus, dev->vendor, dev->product, dev->version, quirks);
387
388 min = field->logical_minimum;
389 max = field->logical_maximum;
390
391 if (quirks & HID_BATTERY_QUIRK_PERCENT) {
392 min = 0;
393 max = 100;
394 }
395
396 if (quirks & HID_BATTERY_QUIRK_FEATURE)
397 report_type = HID_FEATURE_REPORT;
398
399 dev->battery_min = min;
400 dev->battery_max = max;
401 dev->battery_report_type = report_type;
402 dev->battery_report_id = field->report->id;
403
404 ret = power_supply_register(&dev->dev, battery);
405 if (ret != 0) {
406 hid_warn(dev, "can't register power supply: %d\n", ret);
407 kfree(battery->name);
408 battery->name = NULL;
409 }
410
411 power_supply_powers(battery, &dev->dev);
412
413 out:
414 return true;
415 }
416
417 static void hidinput_cleanup_battery(struct hid_device *dev)
418 {
419 if (!dev->battery.name)
420 return;
421
422 power_supply_unregister(&dev->battery);
423 kfree(dev->battery.name);
424 dev->battery.name = NULL;
425 }
426 #else /* !CONFIG_HID_BATTERY_STRENGTH */
427 static bool hidinput_setup_battery(struct hid_device *dev, unsigned report_type,
428 struct hid_field *field)
429 {
430 return false;
431 }
432
433 static void hidinput_cleanup_battery(struct hid_device *dev)
434 {
435 }
436 #endif /* CONFIG_HID_BATTERY_STRENGTH */
437
438 static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
439 struct hid_usage *usage)
440 {
441 struct input_dev *input = hidinput->input;
442 struct hid_device *device = input_get_drvdata(input);
443 int max = 0, code;
444 unsigned long *bit = NULL;
445
446 field->hidinput = hidinput;
447
448 if (field->flags & HID_MAIN_ITEM_CONSTANT)
449 goto ignore;
450
451 /* only LED usages are supported in output fields */
452 if (field->report_type == HID_OUTPUT_REPORT &&
453 (usage->hid & HID_USAGE_PAGE) != HID_UP_LED) {
454 goto ignore;
455 }
456
457 if (device->driver->input_mapping) {
458 int ret = device->driver->input_mapping(device, hidinput, field,
459 usage, &bit, &max);
460 if (ret > 0)
461 goto mapped;
462 if (ret < 0)
463 goto ignore;
464 }
465
466 switch (usage->hid & HID_USAGE_PAGE) {
467 case HID_UP_UNDEFINED:
468 goto ignore;
469
470 case HID_UP_KEYBOARD:
471 set_bit(EV_REP, input->evbit);
472
473 if ((usage->hid & HID_USAGE) < 256) {
474 if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
475 map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
476 } else
477 map_key(KEY_UNKNOWN);
478
479 break;
480
481 case HID_UP_BUTTON:
482 code = ((usage->hid - 1) & HID_USAGE);
483
484 switch (field->application) {
485 case HID_GD_MOUSE:
486 case HID_GD_POINTER: code += BTN_MOUSE; break;
487 case HID_GD_JOYSTICK:
488 if (code <= 0xf)
489 code += BTN_JOYSTICK;
490 else
491 code += BTN_TRIGGER_HAPPY;
492 break;
493 case HID_GD_GAMEPAD: code += BTN_GAMEPAD; break;
494 default:
495 switch (field->physical) {
496 case HID_GD_MOUSE:
497 case HID_GD_POINTER: code += BTN_MOUSE; break;
498 case HID_GD_JOYSTICK: code += BTN_JOYSTICK; break;
499 case HID_GD_GAMEPAD: code += BTN_GAMEPAD; break;
500 default: code += BTN_MISC;
501 }
502 }
503
504 map_key(code);
505 break;
506
507 case HID_UP_SIMULATION:
508 switch (usage->hid & 0xffff) {
509 case 0xba: map_abs(ABS_RUDDER); break;
510 case 0xbb: map_abs(ABS_THROTTLE); break;
511 case 0xc4: map_abs(ABS_GAS); break;
512 case 0xc5: map_abs(ABS_BRAKE); break;
513 case 0xc8: map_abs(ABS_WHEEL); break;
514 default: goto ignore;
515 }
516 break;
517
518 case HID_UP_GENDESK:
519 if ((usage->hid & 0xf0) == 0x80) { /* SystemControl */
520 switch (usage->hid & 0xf) {
521 case 0x1: map_key_clear(KEY_POWER); break;
522 case 0x2: map_key_clear(KEY_SLEEP); break;
523 case 0x3: map_key_clear(KEY_WAKEUP); break;
524 case 0x4: map_key_clear(KEY_CONTEXT_MENU); break;
525 case 0x5: map_key_clear(KEY_MENU); break;
526 case 0x6: map_key_clear(KEY_PROG1); break;
527 case 0x7: map_key_clear(KEY_HELP); break;
528 case 0x8: map_key_clear(KEY_EXIT); break;
529 case 0x9: map_key_clear(KEY_SELECT); break;
530 case 0xa: map_key_clear(KEY_RIGHT); break;
531 case 0xb: map_key_clear(KEY_LEFT); break;
532 case 0xc: map_key_clear(KEY_UP); break;
533 case 0xd: map_key_clear(KEY_DOWN); break;
534 case 0xe: map_key_clear(KEY_POWER2); break;
535 case 0xf: map_key_clear(KEY_RESTART); break;
536 default: goto unknown;
537 }
538 break;
539 }
540
541 if ((usage->hid & 0xf0) == 0x90) { /* D-pad */
542 switch (usage->hid) {
543 case HID_GD_UP: usage->hat_dir = 1; break;
544 case HID_GD_DOWN: usage->hat_dir = 5; break;
545 case HID_GD_RIGHT: usage->hat_dir = 3; break;
546 case HID_GD_LEFT: usage->hat_dir = 7; break;
547 default: goto unknown;
548 }
549 if (field->dpad) {
550 map_abs(field->dpad);
551 goto ignore;
552 }
553 map_abs(ABS_HAT0X);
554 break;
555 }
556
557 switch (usage->hid) {
558 /* These usage IDs map directly to the usage codes. */
559 case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
560 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
561 case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL:
562 if (field->flags & HID_MAIN_ITEM_RELATIVE)
563 map_rel(usage->hid & 0xf);
564 else
565 map_abs(usage->hid & 0xf);
566 break;
567
568 case HID_GD_HATSWITCH:
569 usage->hat_min = field->logical_minimum;
570 usage->hat_max = field->logical_maximum;
571 map_abs(ABS_HAT0X);
572 break;
573
574 case HID_GD_START: map_key_clear(BTN_START); break;
575 case HID_GD_SELECT: map_key_clear(BTN_SELECT); break;
576
577 default: goto unknown;
578 }
579
580 break;
581
582 case HID_UP_LED:
583 switch (usage->hid & 0xffff) { /* HID-Value: */
584 case 0x01: map_led (LED_NUML); break; /* "Num Lock" */
585 case 0x02: map_led (LED_CAPSL); break; /* "Caps Lock" */
586 case 0x03: map_led (LED_SCROLLL); break; /* "Scroll Lock" */
587 case 0x04: map_led (LED_COMPOSE); break; /* "Compose" */
588 case 0x05: map_led (LED_KANA); break; /* "Kana" */
589 case 0x27: map_led (LED_SLEEP); break; /* "Stand-By" */
590 case 0x4c: map_led (LED_SUSPEND); break; /* "System Suspend" */
591 case 0x09: map_led (LED_MUTE); break; /* "Mute" */
592 case 0x4b: map_led (LED_MISC); break; /* "Generic Indicator" */
593 case 0x19: map_led (LED_MAIL); break; /* "Message Waiting" */
594 case 0x4d: map_led (LED_CHARGING); break; /* "External Power Connected" */
595
596 default: goto ignore;
597 }
598 break;
599
600 case HID_UP_DIGITIZER:
601 switch (usage->hid & 0xff) {
602 case 0x00: /* Undefined */
603 goto ignore;
604
605 case 0x30: /* TipPressure */
606 if (!test_bit(BTN_TOUCH, input->keybit)) {
607 device->quirks |= HID_QUIRK_NOTOUCH;
608 set_bit(EV_KEY, input->evbit);
609 set_bit(BTN_TOUCH, input->keybit);
610 }
611 map_abs_clear(ABS_PRESSURE);
612 break;
613
614 case 0x32: /* InRange */
615 switch (field->physical & 0xff) {
616 case 0x21: map_key(BTN_TOOL_MOUSE); break;
617 case 0x22: map_key(BTN_TOOL_FINGER); break;
618 default: map_key(BTN_TOOL_PEN); break;
619 }
620 break;
621
622 case 0x3c: /* Invert */
623 map_key_clear(BTN_TOOL_RUBBER);
624 break;
625
626 case 0x33: /* Touch */
627 case 0x42: /* TipSwitch */
628 case 0x43: /* TipSwitch2 */
629 device->quirks &= ~HID_QUIRK_NOTOUCH;
630 map_key_clear(BTN_TOUCH);
631 break;
632
633 case 0x44: /* BarrelSwitch */
634 map_key_clear(BTN_STYLUS);
635 break;
636
637 case 0x46: /* TabletPick */
638 map_key_clear(BTN_STYLUS2);
639 break;
640
641 case 0x51: /* ContactID */
642 device->quirks |= HID_QUIRK_MULTITOUCH;
643 goto unknown;
644
645 default: goto unknown;
646 }
647 break;
648
649 case HID_UP_CONSUMER: /* USB HUT v1.12, pages 75-84 */
650 switch (usage->hid & HID_USAGE) {
651 case 0x000: goto ignore;
652 case 0x030: map_key_clear(KEY_POWER); break;
653 case 0x031: map_key_clear(KEY_RESTART); break;
654 case 0x032: map_key_clear(KEY_SLEEP); break;
655 case 0x034: map_key_clear(KEY_SLEEP); break;
656 case 0x035: map_key_clear(KEY_KBDILLUMTOGGLE); break;
657 case 0x036: map_key_clear(BTN_MISC); break;
658
659 case 0x040: map_key_clear(KEY_MENU); break; /* Menu */
660 case 0x041: map_key_clear(KEY_SELECT); break; /* Menu Pick */
661 case 0x042: map_key_clear(KEY_UP); break; /* Menu Up */
662 case 0x043: map_key_clear(KEY_DOWN); break; /* Menu Down */
663 case 0x044: map_key_clear(KEY_LEFT); break; /* Menu Left */
664 case 0x045: map_key_clear(KEY_RIGHT); break; /* Menu Right */
665 case 0x046: map_key_clear(KEY_ESC); break; /* Menu Escape */
666 case 0x047: map_key_clear(KEY_KPPLUS); break; /* Menu Value Increase */
667 case 0x048: map_key_clear(KEY_KPMINUS); break; /* Menu Value Decrease */
668
669 case 0x060: map_key_clear(KEY_INFO); break; /* Data On Screen */
670 case 0x061: map_key_clear(KEY_SUBTITLE); break; /* Closed Caption */
671 case 0x063: map_key_clear(KEY_VCR); break; /* VCR/TV */
672 case 0x065: map_key_clear(KEY_CAMERA); break; /* Snapshot */
673 case 0x069: map_key_clear(KEY_RED); break;
674 case 0x06a: map_key_clear(KEY_GREEN); break;
675 case 0x06b: map_key_clear(KEY_BLUE); break;
676 case 0x06c: map_key_clear(KEY_YELLOW); break;
677 case 0x06d: map_key_clear(KEY_ZOOM); break;
678
679 case 0x082: map_key_clear(KEY_VIDEO_NEXT); break;
680 case 0x083: map_key_clear(KEY_LAST); break;
681 case 0x084: map_key_clear(KEY_ENTER); break;
682 case 0x088: map_key_clear(KEY_PC); break;
683 case 0x089: map_key_clear(KEY_TV); break;
684 case 0x08a: map_key_clear(KEY_WWW); break;
685 case 0x08b: map_key_clear(KEY_DVD); break;
686 case 0x08c: map_key_clear(KEY_PHONE); break;
687 case 0x08d: map_key_clear(KEY_PROGRAM); break;
688 case 0x08e: map_key_clear(KEY_VIDEOPHONE); break;
689 case 0x08f: map_key_clear(KEY_GAMES); break;
690 case 0x090: map_key_clear(KEY_MEMO); break;
691 case 0x091: map_key_clear(KEY_CD); break;
692 case 0x092: map_key_clear(KEY_VCR); break;
693 case 0x093: map_key_clear(KEY_TUNER); break;
694 case 0x094: map_key_clear(KEY_EXIT); break;
695 case 0x095: map_key_clear(KEY_HELP); break;
696 case 0x096: map_key_clear(KEY_TAPE); break;
697 case 0x097: map_key_clear(KEY_TV2); break;
698 case 0x098: map_key_clear(KEY_SAT); break;
699 case 0x09a: map_key_clear(KEY_PVR); break;
700
701 case 0x09c: map_key_clear(KEY_CHANNELUP); break;
702 case 0x09d: map_key_clear(KEY_CHANNELDOWN); break;
703 case 0x0a0: map_key_clear(KEY_VCR2); break;
704
705 case 0x0b0: map_key_clear(KEY_PLAY); break;
706 case 0x0b1: map_key_clear(KEY_PAUSE); break;
707 case 0x0b2: map_key_clear(KEY_RECORD); break;
708 case 0x0b3: map_key_clear(KEY_FASTFORWARD); break;
709 case 0x0b4: map_key_clear(KEY_REWIND); break;
710 case 0x0b5: map_key_clear(KEY_NEXTSONG); break;
711 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG); break;
712 case 0x0b7: map_key_clear(KEY_STOPCD); break;
713 case 0x0b8: map_key_clear(KEY_EJECTCD); break;
714 case 0x0bc: map_key_clear(KEY_MEDIA_REPEAT); break;
715 case 0x0b9: map_key_clear(KEY_SHUFFLE); break;
716 case 0x0bf: map_key_clear(KEY_SLOW); break;
717
718 case 0x0cd: map_key_clear(KEY_PLAYPAUSE); break;
719 case 0x0e0: map_abs_clear(ABS_VOLUME); break;
720 case 0x0e2: map_key_clear(KEY_MUTE); break;
721 case 0x0e5: map_key_clear(KEY_BASSBOOST); break;
722 case 0x0e9: map_key_clear(KEY_VOLUMEUP); break;
723 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN); break;
724 case 0x0f5: map_key_clear(KEY_SLOW); break;
725
726 case 0x182: map_key_clear(KEY_BOOKMARKS); break;
727 case 0x183: map_key_clear(KEY_CONFIG); break;
728 case 0x184: map_key_clear(KEY_WORDPROCESSOR); break;
729 case 0x185: map_key_clear(KEY_EDITOR); break;
730 case 0x186: map_key_clear(KEY_SPREADSHEET); break;
731 case 0x187: map_key_clear(KEY_GRAPHICSEDITOR); break;
732 case 0x188: map_key_clear(KEY_PRESENTATION); break;
733 case 0x189: map_key_clear(KEY_DATABASE); break;
734 case 0x18a: map_key_clear(KEY_MAIL); break;
735 case 0x18b: map_key_clear(KEY_NEWS); break;
736 case 0x18c: map_key_clear(KEY_VOICEMAIL); break;
737 case 0x18d: map_key_clear(KEY_ADDRESSBOOK); break;
738 case 0x18e: map_key_clear(KEY_CALENDAR); break;
739 case 0x191: map_key_clear(KEY_FINANCE); break;
740 case 0x192: map_key_clear(KEY_CALC); break;
741 case 0x193: map_key_clear(KEY_PLAYER); break;
742 case 0x194: map_key_clear(KEY_FILE); break;
743 case 0x196: map_key_clear(KEY_WWW); break;
744 case 0x199: map_key_clear(KEY_CHAT); break;
745 case 0x19c: map_key_clear(KEY_LOGOFF); break;
746 case 0x19e: map_key_clear(KEY_COFFEE); break;
747 case 0x1a6: map_key_clear(KEY_HELP); break;
748 case 0x1a7: map_key_clear(KEY_DOCUMENTS); break;
749 case 0x1ab: map_key_clear(KEY_SPELLCHECK); break;
750 case 0x1ae: map_key_clear(KEY_KEYBOARD); break;
751 case 0x1b6: map_key_clear(KEY_IMAGES); break;
752 case 0x1b7: map_key_clear(KEY_AUDIO); break;
753 case 0x1b8: map_key_clear(KEY_VIDEO); break;
754 case 0x1bc: map_key_clear(KEY_MESSENGER); break;
755 case 0x1bd: map_key_clear(KEY_INFO); break;
756 case 0x201: map_key_clear(KEY_NEW); break;
757 case 0x202: map_key_clear(KEY_OPEN); break;
758 case 0x203: map_key_clear(KEY_CLOSE); break;
759 case 0x204: map_key_clear(KEY_EXIT); break;
760 case 0x207: map_key_clear(KEY_SAVE); break;
761 case 0x208: map_key_clear(KEY_PRINT); break;
762 case 0x209: map_key_clear(KEY_PROPS); break;
763 case 0x21a: map_key_clear(KEY_UNDO); break;
764 case 0x21b: map_key_clear(KEY_COPY); break;
765 case 0x21c: map_key_clear(KEY_CUT); break;
766 case 0x21d: map_key_clear(KEY_PASTE); break;
767 case 0x21f: map_key_clear(KEY_FIND); break;
768 case 0x221: map_key_clear(KEY_SEARCH); break;
769 case 0x222: map_key_clear(KEY_GOTO); break;
770 case 0x223: map_key_clear(KEY_HOMEPAGE); break;
771 case 0x224: map_key_clear(KEY_BACK); break;
772 case 0x225: map_key_clear(KEY_FORWARD); break;
773 case 0x226: map_key_clear(KEY_STOP); break;
774 case 0x227: map_key_clear(KEY_REFRESH); break;
775 case 0x22a: map_key_clear(KEY_BOOKMARKS); break;
776 case 0x22d: map_key_clear(KEY_ZOOMIN); break;
777 case 0x22e: map_key_clear(KEY_ZOOMOUT); break;
778 case 0x22f: map_key_clear(KEY_ZOOMRESET); break;
779 case 0x233: map_key_clear(KEY_SCROLLUP); break;
780 case 0x234: map_key_clear(KEY_SCROLLDOWN); break;
781 case 0x238: map_rel(REL_HWHEEL); break;
782 case 0x23d: map_key_clear(KEY_EDIT); break;
783 case 0x25f: map_key_clear(KEY_CANCEL); break;
784 case 0x269: map_key_clear(KEY_INSERT); break;
785 case 0x26a: map_key_clear(KEY_DELETE); break;
786 case 0x279: map_key_clear(KEY_REDO); break;
787
788 case 0x289: map_key_clear(KEY_REPLY); break;
789 case 0x28b: map_key_clear(KEY_FORWARDMAIL); break;
790 case 0x28c: map_key_clear(KEY_SEND); break;
791
792 default: goto ignore;
793 }
794 break;
795
796 case HID_UP_GENDEVCTRLS:
797 if (hidinput_setup_battery(device, HID_INPUT_REPORT, field))
798 goto ignore;
799 else
800 goto unknown;
801 break;
802
803 case HID_UP_HPVENDOR: /* Reported on a Dutch layout HP5308 */
804 set_bit(EV_REP, input->evbit);
805 switch (usage->hid & HID_USAGE) {
806 case 0x021: map_key_clear(KEY_PRINT); break;
807 case 0x070: map_key_clear(KEY_HP); break;
808 case 0x071: map_key_clear(KEY_CAMERA); break;
809 case 0x072: map_key_clear(KEY_SOUND); break;
810 case 0x073: map_key_clear(KEY_QUESTION); break;
811 case 0x080: map_key_clear(KEY_EMAIL); break;
812 case 0x081: map_key_clear(KEY_CHAT); break;
813 case 0x082: map_key_clear(KEY_SEARCH); break;
814 case 0x083: map_key_clear(KEY_CONNECT); break;
815 case 0x084: map_key_clear(KEY_FINANCE); break;
816 case 0x085: map_key_clear(KEY_SPORT); break;
817 case 0x086: map_key_clear(KEY_SHOP); break;
818 default: goto ignore;
819 }
820 break;
821
822 case HID_UP_MSVENDOR:
823 goto ignore;
824
825 case HID_UP_CUSTOM: /* Reported on Logitech and Apple USB keyboards */
826 set_bit(EV_REP, input->evbit);
827 goto ignore;
828
829 case HID_UP_LOGIVENDOR:
830 goto ignore;
831
832 case HID_UP_PID:
833 switch (usage->hid & HID_USAGE) {
834 case 0xa4: map_key_clear(BTN_DEAD); break;
835 default: goto ignore;
836 }
837 break;
838
839 default:
840 unknown:
841 if (field->report_size == 1) {
842 if (field->report->type == HID_OUTPUT_REPORT) {
843 map_led(LED_MISC);
844 break;
845 }
846 map_key(BTN_MISC);
847 break;
848 }
849 if (field->flags & HID_MAIN_ITEM_RELATIVE) {
850 map_rel(REL_MISC);
851 break;
852 }
853 map_abs(ABS_MISC);
854 break;
855 }
856
857 mapped:
858 if (device->driver->input_mapped && device->driver->input_mapped(device,
859 hidinput, field, usage, &bit, &max) < 0)
860 goto ignore;
861
862 set_bit(usage->type, input->evbit);
863
864 while (usage->code <= max && test_and_set_bit(usage->code, bit))
865 usage->code = find_next_zero_bit(bit, max + 1, usage->code);
866
867 if (usage->code > max)
868 goto ignore;
869
870
871 if (usage->type == EV_ABS) {
872
873 int a = field->logical_minimum;
874 int b = field->logical_maximum;
875
876 if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
877 a = field->logical_minimum = 0;
878 b = field->logical_maximum = 255;
879 }
880
881 if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
882 input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
883 else input_set_abs_params(input, usage->code, a, b, 0, 0);
884
885 input_abs_set_res(input, usage->code,
886 hidinput_calc_abs_res(field, usage->code));
887
888 /* use a larger default input buffer for MT devices */
889 if (usage->code == ABS_MT_POSITION_X && input->hint_events_per_packet == 0)
890 input_set_events_per_packet(input, 60);
891 }
892
893 if (usage->type == EV_ABS &&
894 (usage->hat_min < usage->hat_max || usage->hat_dir)) {
895 int i;
896 for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
897 input_set_abs_params(input, i, -1, 1, 0, 0);
898 set_bit(i, input->absbit);
899 }
900 if (usage->hat_dir && !field->dpad)
901 field->dpad = usage->code;
902 }
903
904 /* for those devices which produce Consumer volume usage as relative,
905 * we emulate pressing volumeup/volumedown appropriate number of times
906 * in hidinput_hid_event()
907 */
908 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
909 (usage->code == ABS_VOLUME)) {
910 set_bit(KEY_VOLUMEUP, input->keybit);
911 set_bit(KEY_VOLUMEDOWN, input->keybit);
912 }
913
914 if (usage->type == EV_KEY) {
915 set_bit(EV_MSC, input->evbit);
916 set_bit(MSC_SCAN, input->mscbit);
917 }
918
919 ignore:
920 return;
921
922 }
923
924 void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
925 {
926 struct input_dev *input;
927 unsigned *quirks = &hid->quirks;
928
929 if (!field->hidinput)
930 return;
931
932 input = field->hidinput->input;
933
934 if (!usage->type)
935 return;
936
937 if (usage->hat_min < usage->hat_max || usage->hat_dir) {
938 int hat_dir = usage->hat_dir;
939 if (!hat_dir)
940 hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
941 if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
942 input_event(input, usage->type, usage->code , hid_hat_to_axis[hat_dir].x);
943 input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
944 return;
945 }
946
947 if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */
948 *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
949 return;
950 }
951
952 if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */
953 if (value) {
954 input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
955 return;
956 }
957 input_event(input, usage->type, usage->code, 0);
958 input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
959 return;
960 }
961
962 if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */
963 int a = field->logical_minimum;
964 int b = field->logical_maximum;
965 input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3));
966 }
967
968 if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
969 dbg_hid("Maximum Effects - %d\n",value);
970 return;
971 }
972
973 if (usage->hid == (HID_UP_PID | 0x7fUL)) {
974 dbg_hid("PID Pool Report\n");
975 return;
976 }
977
978 if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
979 return;
980
981 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
982 (usage->code == ABS_VOLUME)) {
983 int count = abs(value);
984 int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN;
985 int i;
986
987 for (i = 0; i < count; i++) {
988 input_event(input, EV_KEY, direction, 1);
989 input_sync(input);
990 input_event(input, EV_KEY, direction, 0);
991 input_sync(input);
992 }
993 return;
994 }
995
996 /*
997 * Ignore out-of-range values as per HID specification,
998 * section 5.10 and 6.2.25
999 */
1000 if ((field->flags & HID_MAIN_ITEM_VARIABLE) &&
1001 (value < field->logical_minimum ||
1002 value > field->logical_maximum)) {
1003 dbg_hid("Ignoring out-of-range value %x\n", value);
1004 return;
1005 }
1006
1007 /* report the usage code as scancode if the key status has changed */
1008 if (usage->type == EV_KEY && !!test_bit(usage->code, input->key) != value)
1009 input_event(input, EV_MSC, MSC_SCAN, usage->hid);
1010
1011 input_event(input, usage->type, usage->code, value);
1012
1013 if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY))
1014 input_event(input, usage->type, usage->code, 0);
1015 }
1016
1017 void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
1018 {
1019 struct hid_input *hidinput;
1020
1021 if (hid->quirks & HID_QUIRK_NO_INPUT_SYNC)
1022 return;
1023
1024 list_for_each_entry(hidinput, &hid->inputs, list)
1025 input_sync(hidinput->input);
1026 }
1027 EXPORT_SYMBOL_GPL(hidinput_report_event);
1028
1029 int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
1030 {
1031 struct hid_report *report;
1032 int i, j;
1033
1034 list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
1035 for (i = 0; i < report->maxfield; i++) {
1036 *field = report->field[i];
1037 for (j = 0; j < (*field)->maxusage; j++)
1038 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
1039 return j;
1040 }
1041 }
1042 return -1;
1043 }
1044 EXPORT_SYMBOL_GPL(hidinput_find_field);
1045
1046 struct hid_field *hidinput_get_led_field(struct hid_device *hid)
1047 {
1048 struct hid_report *report;
1049 struct hid_field *field;
1050 int i, j;
1051
1052 list_for_each_entry(report,
1053 &hid->report_enum[HID_OUTPUT_REPORT].report_list,
1054 list) {
1055 for (i = 0; i < report->maxfield; i++) {
1056 field = report->field[i];
1057 for (j = 0; j < field->maxusage; j++)
1058 if (field->usage[j].type == EV_LED)
1059 return field;
1060 }
1061 }
1062 return NULL;
1063 }
1064 EXPORT_SYMBOL_GPL(hidinput_get_led_field);
1065
1066 unsigned int hidinput_count_leds(struct hid_device *hid)
1067 {
1068 struct hid_report *report;
1069 struct hid_field *field;
1070 int i, j;
1071 unsigned int count = 0;
1072
1073 list_for_each_entry(report,
1074 &hid->report_enum[HID_OUTPUT_REPORT].report_list,
1075 list) {
1076 for (i = 0; i < report->maxfield; i++) {
1077 field = report->field[i];
1078 for (j = 0; j < field->maxusage; j++)
1079 if (field->usage[j].type == EV_LED &&
1080 field->value[j])
1081 count += 1;
1082 }
1083 }
1084 return count;
1085 }
1086 EXPORT_SYMBOL_GPL(hidinput_count_leds);
1087
1088 static int hidinput_open(struct input_dev *dev)
1089 {
1090 struct hid_device *hid = input_get_drvdata(dev);
1091
1092 return hid_hw_open(hid);
1093 }
1094
1095 static void hidinput_close(struct input_dev *dev)
1096 {
1097 struct hid_device *hid = input_get_drvdata(dev);
1098
1099 hid_hw_close(hid);
1100 }
1101
1102 static void report_features(struct hid_device *hid)
1103 {
1104 struct hid_driver *drv = hid->driver;
1105 struct hid_report_enum *rep_enum;
1106 struct hid_report *rep;
1107 int i, j;
1108
1109 rep_enum = &hid->report_enum[HID_FEATURE_REPORT];
1110 list_for_each_entry(rep, &rep_enum->report_list, list)
1111 for (i = 0; i < rep->maxfield; i++)
1112 for (j = 0; j < rep->field[i]->maxusage; j++) {
1113 /* Verify if Battery Strength feature is available */
1114 hidinput_setup_battery(hid, HID_FEATURE_REPORT, rep->field[i]);
1115
1116 if (drv->feature_mapping)
1117 drv->feature_mapping(hid, rep->field[i],
1118 rep->field[i]->usage + j);
1119 }
1120 }
1121
1122 /*
1123 * Register the input device; print a message.
1124 * Configure the input layer interface
1125 * Read all reports and initialize the absolute field values.
1126 */
1127
1128 int hidinput_connect(struct hid_device *hid, unsigned int force)
1129 {
1130 struct hid_report *report;
1131 struct hid_input *hidinput = NULL;
1132 struct input_dev *input_dev;
1133 int i, j, k;
1134
1135 INIT_LIST_HEAD(&hid->inputs);
1136
1137 if (!force) {
1138 for (i = 0; i < hid->maxcollection; i++) {
1139 struct hid_collection *col = &hid->collection[i];
1140 if (col->type == HID_COLLECTION_APPLICATION ||
1141 col->type == HID_COLLECTION_PHYSICAL)
1142 if (IS_INPUT_APPLICATION(col->usage))
1143 break;
1144 }
1145
1146 if (i == hid->maxcollection)
1147 return -1;
1148 }
1149
1150 report_features(hid);
1151
1152 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
1153 if (k == HID_OUTPUT_REPORT &&
1154 hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
1155 continue;
1156
1157 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
1158
1159 if (!report->maxfield)
1160 continue;
1161
1162 if (!hidinput) {
1163 hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
1164 input_dev = input_allocate_device();
1165 if (!hidinput || !input_dev) {
1166 kfree(hidinput);
1167 input_free_device(input_dev);
1168 hid_err(hid, "Out of memory during hid input probe\n");
1169 goto out_unwind;
1170 }
1171
1172 input_set_drvdata(input_dev, hid);
1173 input_dev->event =
1174 hid->ll_driver->hidinput_input_event;
1175 input_dev->open = hidinput_open;
1176 input_dev->close = hidinput_close;
1177 input_dev->setkeycode = hidinput_setkeycode;
1178 input_dev->getkeycode = hidinput_getkeycode;
1179
1180 input_dev->name = hid->name;
1181 input_dev->phys = hid->phys;
1182 input_dev->uniq = hid->uniq;
1183 input_dev->id.bustype = hid->bus;
1184 input_dev->id.vendor = hid->vendor;
1185 input_dev->id.product = hid->product;
1186 input_dev->id.version = hid->version;
1187 input_dev->dev.parent = hid->dev.parent;
1188 hidinput->input = input_dev;
1189 list_add_tail(&hidinput->list, &hid->inputs);
1190 }
1191
1192 for (i = 0; i < report->maxfield; i++)
1193 for (j = 0; j < report->field[i]->maxusage; j++)
1194 hidinput_configure_usage(hidinput, report->field[i],
1195 report->field[i]->usage + j);
1196
1197 if (hid->quirks & HID_QUIRK_MULTI_INPUT) {
1198 /* This will leave hidinput NULL, so that it
1199 * allocates another one if we have more inputs on
1200 * the same interface. Some devices (e.g. Happ's
1201 * UGCI) cram a lot of unrelated inputs into the
1202 * same interface. */
1203 hidinput->report = report;
1204 if (input_register_device(hidinput->input))
1205 goto out_cleanup;
1206 hidinput = NULL;
1207 }
1208 }
1209 }
1210
1211 if (hid->quirks & HID_QUIRK_MULTITOUCH) {
1212 /* generic hid does not know how to handle multitouch devices */
1213 if (hidinput)
1214 goto out_cleanup;
1215 goto out_unwind;
1216 }
1217
1218 if (hidinput && input_register_device(hidinput->input))
1219 goto out_cleanup;
1220
1221 return 0;
1222
1223 out_cleanup:
1224 list_del(&hidinput->list);
1225 input_free_device(hidinput->input);
1226 kfree(hidinput);
1227 out_unwind:
1228 /* unwind the ones we already registered */
1229 hidinput_disconnect(hid);
1230
1231 return -1;
1232 }
1233 EXPORT_SYMBOL_GPL(hidinput_connect);
1234
1235 void hidinput_disconnect(struct hid_device *hid)
1236 {
1237 struct hid_input *hidinput, *next;
1238
1239 hidinput_cleanup_battery(hid);
1240
1241 list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
1242 list_del(&hidinput->list);
1243 input_unregister_device(hidinput->input);
1244 kfree(hidinput);
1245 }
1246 }
1247 EXPORT_SYMBOL_GPL(hidinput_disconnect);
1248
CJK support for tty framebuffer vt