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Merge tag '9p-3.10-bug-fix-1' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh...
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / hid / hid-input.c
1 /*
2 * Copyright (c) 2000-2001 Vojtech Pavlik
3 * Copyright (c) 2006-2010 Jiri Kosina
4 *
5 * HID to Linux Input mapping
6 */
7
8 /*
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 *
23 * Should you need to contact me, the author, you can do so either by
24 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
25 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
26 */
27
28 #include <linux/module.h>
29 #include <linux/slab.h>
30 #include <linux/kernel.h>
31
32 #include <linux/hid.h>
33 #include <linux/hid-debug.h>
34
35 #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 * hidinput_calc_abs_res - calculate an absolute axis resolution
197 * @field: the HID report field to calculate resolution for
198 * @code: axis code
199 *
200 * The formula is:
201 * (logical_maximum - logical_minimum)
202 * resolution = ----------------------------------------------------------
203 * (physical_maximum - physical_minimum) * 10 ^ unit_exponent
204 *
205 * as seen in the HID specification v1.11 6.2.2.7 Global Items.
206 *
207 * Only exponent 1 length units are processed. Centimeters and inches are
208 * converted to millimeters. Degrees are converted to radians.
209 */
210 __s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code)
211 {
212 __s32 unit_exponent = field->unit_exponent;
213 __s32 logical_extents = field->logical_maximum -
214 field->logical_minimum;
215 __s32 physical_extents = field->physical_maximum -
216 field->physical_minimum;
217 __s32 prev;
218
219 /* Check if the extents are sane */
220 if (logical_extents <= 0 || physical_extents <= 0)
221 return 0;
222
223 /*
224 * Verify and convert units.
225 * See HID specification v1.11 6.2.2.7 Global Items for unit decoding
226 */
227 switch (code) {
228 case ABS_X:
229 case ABS_Y:
230 case ABS_Z:
231 case ABS_MT_POSITION_X:
232 case ABS_MT_POSITION_Y:
233 case ABS_MT_TOOL_X:
234 case ABS_MT_TOOL_Y:
235 case ABS_MT_TOUCH_MAJOR:
236 case ABS_MT_TOUCH_MINOR:
237 if (field->unit & 0xffffff00) /* Not a length */
238 return 0;
239 unit_exponent += hid_snto32(field->unit >> 4, 4) - 1;
240 switch (field->unit & 0xf) {
241 case 0x1: /* If centimeters */
242 /* Convert to millimeters */
243 unit_exponent += 1;
244 break;
245 case 0x3: /* If inches */
246 /* Convert to millimeters */
247 prev = physical_extents;
248 physical_extents *= 254;
249 if (physical_extents < prev)
250 return 0;
251 unit_exponent -= 1;
252 break;
253 default:
254 return 0;
255 }
256 break;
257
258 case ABS_RX:
259 case ABS_RY:
260 case ABS_RZ:
261 case ABS_TILT_X:
262 case ABS_TILT_Y:
263 if (field->unit == 0x14) { /* If degrees */
264 /* Convert to radians */
265 prev = logical_extents;
266 logical_extents *= 573;
267 if (logical_extents < prev)
268 return 0;
269 unit_exponent += 1;
270 } else if (field->unit != 0x12) { /* If not radians */
271 return 0;
272 }
273 break;
274
275 default:
276 return 0;
277 }
278
279 /* Apply negative unit exponent */
280 for (; unit_exponent < 0; unit_exponent++) {
281 prev = logical_extents;
282 logical_extents *= 10;
283 if (logical_extents < prev)
284 return 0;
285 }
286 /* Apply positive unit exponent */
287 for (; unit_exponent > 0; unit_exponent--) {
288 prev = physical_extents;
289 physical_extents *= 10;
290 if (physical_extents < prev)
291 return 0;
292 }
293
294 /* Calculate resolution */
295 return DIV_ROUND_CLOSEST(logical_extents, physical_extents);
296 }
297 EXPORT_SYMBOL_GPL(hidinput_calc_abs_res);
298
299 #ifdef CONFIG_HID_BATTERY_STRENGTH
300 static enum power_supply_property hidinput_battery_props[] = {
301 POWER_SUPPLY_PROP_PRESENT,
302 POWER_SUPPLY_PROP_ONLINE,
303 POWER_SUPPLY_PROP_CAPACITY,
304 POWER_SUPPLY_PROP_MODEL_NAME,
305 POWER_SUPPLY_PROP_STATUS,
306 POWER_SUPPLY_PROP_SCOPE,
307 };
308
309 #define HID_BATTERY_QUIRK_PERCENT (1 << 0) /* always reports percent */
310 #define HID_BATTERY_QUIRK_FEATURE (1 << 1) /* ask for feature report */
311
312 static const struct hid_device_id hid_battery_quirks[] = {
313 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
314 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO),
315 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
316 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
317 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI),
318 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
319 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
320 USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI),
321 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
322 {}
323 };
324
325 static unsigned find_battery_quirk(struct hid_device *hdev)
326 {
327 unsigned quirks = 0;
328 const struct hid_device_id *match;
329
330 match = hid_match_id(hdev, hid_battery_quirks);
331 if (match != NULL)
332 quirks = match->driver_data;
333
334 return quirks;
335 }
336
337 static int hidinput_get_battery_property(struct power_supply *psy,
338 enum power_supply_property prop,
339 union power_supply_propval *val)
340 {
341 struct hid_device *dev = container_of(psy, struct hid_device, battery);
342 int ret = 0;
343 __u8 buf[2] = {};
344
345 switch (prop) {
346 case POWER_SUPPLY_PROP_PRESENT:
347 case POWER_SUPPLY_PROP_ONLINE:
348 val->intval = 1;
349 break;
350
351 case POWER_SUPPLY_PROP_CAPACITY:
352 ret = dev->hid_get_raw_report(dev, dev->battery_report_id,
353 buf, sizeof(buf),
354 dev->battery_report_type);
355
356 if (ret != 2) {
357 if (ret >= 0)
358 ret = -EINVAL;
359 break;
360 }
361
362 if (dev->battery_min < dev->battery_max &&
363 buf[1] >= dev->battery_min &&
364 buf[1] <= dev->battery_max)
365 val->intval = (100 * (buf[1] - dev->battery_min)) /
366 (dev->battery_max - dev->battery_min);
367 break;
368
369 case POWER_SUPPLY_PROP_MODEL_NAME:
370 val->strval = dev->name;
371 break;
372
373 case POWER_SUPPLY_PROP_STATUS:
374 val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
375 break;
376
377 case POWER_SUPPLY_PROP_SCOPE:
378 val->intval = POWER_SUPPLY_SCOPE_DEVICE;
379 break;
380
381 default:
382 ret = -EINVAL;
383 break;
384 }
385
386 return ret;
387 }
388
389 static bool hidinput_setup_battery(struct hid_device *dev, unsigned report_type, struct hid_field *field)
390 {
391 struct power_supply *battery = &dev->battery;
392 int ret;
393 unsigned quirks;
394 s32 min, max;
395
396 if (field->usage->hid != HID_DC_BATTERYSTRENGTH)
397 return false; /* no match */
398
399 if (battery->name != NULL)
400 goto out; /* already initialized? */
401
402 battery->name = kasprintf(GFP_KERNEL, "hid-%s-battery", dev->uniq);
403 if (battery->name == NULL)
404 goto out;
405
406 battery->type = POWER_SUPPLY_TYPE_BATTERY;
407 battery->properties = hidinput_battery_props;
408 battery->num_properties = ARRAY_SIZE(hidinput_battery_props);
409 battery->use_for_apm = 0;
410 battery->get_property = hidinput_get_battery_property;
411
412 quirks = find_battery_quirk(dev);
413
414 hid_dbg(dev, "device %x:%x:%x %d quirks %d\n",
415 dev->bus, dev->vendor, dev->product, dev->version, quirks);
416
417 min = field->logical_minimum;
418 max = field->logical_maximum;
419
420 if (quirks & HID_BATTERY_QUIRK_PERCENT) {
421 min = 0;
422 max = 100;
423 }
424
425 if (quirks & HID_BATTERY_QUIRK_FEATURE)
426 report_type = HID_FEATURE_REPORT;
427
428 dev->battery_min = min;
429 dev->battery_max = max;
430 dev->battery_report_type = report_type;
431 dev->battery_report_id = field->report->id;
432
433 ret = power_supply_register(&dev->dev, battery);
434 if (ret != 0) {
435 hid_warn(dev, "can't register power supply: %d\n", ret);
436 kfree(battery->name);
437 battery->name = NULL;
438 }
439
440 power_supply_powers(battery, &dev->dev);
441
442 out:
443 return true;
444 }
445
446 static void hidinput_cleanup_battery(struct hid_device *dev)
447 {
448 if (!dev->battery.name)
449 return;
450
451 power_supply_unregister(&dev->battery);
452 kfree(dev->battery.name);
453 dev->battery.name = NULL;
454 }
455 #else /* !CONFIG_HID_BATTERY_STRENGTH */
456 static bool hidinput_setup_battery(struct hid_device *dev, unsigned report_type,
457 struct hid_field *field)
458 {
459 return false;
460 }
461
462 static void hidinput_cleanup_battery(struct hid_device *dev)
463 {
464 }
465 #endif /* CONFIG_HID_BATTERY_STRENGTH */
466
467 static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
468 struct hid_usage *usage)
469 {
470 struct input_dev *input = hidinput->input;
471 struct hid_device *device = input_get_drvdata(input);
472 int max = 0, code;
473 unsigned long *bit = NULL;
474
475 field->hidinput = hidinput;
476
477 if (field->flags & HID_MAIN_ITEM_CONSTANT)
478 goto ignore;
479
480 /* only LED usages are supported in output fields */
481 if (field->report_type == HID_OUTPUT_REPORT &&
482 (usage->hid & HID_USAGE_PAGE) != HID_UP_LED) {
483 goto ignore;
484 }
485
486 if (device->driver->input_mapping) {
487 int ret = device->driver->input_mapping(device, hidinput, field,
488 usage, &bit, &max);
489 if (ret > 0)
490 goto mapped;
491 if (ret < 0)
492 goto ignore;
493 }
494
495 switch (usage->hid & HID_USAGE_PAGE) {
496 case HID_UP_UNDEFINED:
497 goto ignore;
498
499 case HID_UP_KEYBOARD:
500 set_bit(EV_REP, input->evbit);
501
502 if ((usage->hid & HID_USAGE) < 256) {
503 if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
504 map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
505 } else
506 map_key(KEY_UNKNOWN);
507
508 break;
509
510 case HID_UP_BUTTON:
511 code = ((usage->hid - 1) & HID_USAGE);
512
513 switch (field->application) {
514 case HID_GD_MOUSE:
515 case HID_GD_POINTER: code += BTN_MOUSE; break;
516 case HID_GD_JOYSTICK:
517 if (code <= 0xf)
518 code += BTN_JOYSTICK;
519 else
520 code += BTN_TRIGGER_HAPPY - 0x10;
521 break;
522 case HID_GD_GAMEPAD:
523 if (code <= 0xf)
524 code += BTN_GAMEPAD;
525 else
526 code += BTN_TRIGGER_HAPPY - 0x10;
527 break;
528 default:
529 switch (field->physical) {
530 case HID_GD_MOUSE:
531 case HID_GD_POINTER: code += BTN_MOUSE; break;
532 case HID_GD_JOYSTICK: code += BTN_JOYSTICK; break;
533 case HID_GD_GAMEPAD: code += BTN_GAMEPAD; break;
534 default: code += BTN_MISC;
535 }
536 }
537
538 map_key(code);
539 break;
540
541 case HID_UP_SIMULATION:
542 switch (usage->hid & 0xffff) {
543 case 0xba: map_abs(ABS_RUDDER); break;
544 case 0xbb: map_abs(ABS_THROTTLE); break;
545 case 0xc4: map_abs(ABS_GAS); break;
546 case 0xc5: map_abs(ABS_BRAKE); break;
547 case 0xc8: map_abs(ABS_WHEEL); break;
548 default: goto ignore;
549 }
550 break;
551
552 case HID_UP_GENDESK:
553 if ((usage->hid & 0xf0) == 0x80) { /* SystemControl */
554 switch (usage->hid & 0xf) {
555 case 0x1: map_key_clear(KEY_POWER); break;
556 case 0x2: map_key_clear(KEY_SLEEP); break;
557 case 0x3: map_key_clear(KEY_WAKEUP); break;
558 case 0x4: map_key_clear(KEY_CONTEXT_MENU); break;
559 case 0x5: map_key_clear(KEY_MENU); break;
560 case 0x6: map_key_clear(KEY_PROG1); break;
561 case 0x7: map_key_clear(KEY_HELP); break;
562 case 0x8: map_key_clear(KEY_EXIT); break;
563 case 0x9: map_key_clear(KEY_SELECT); break;
564 case 0xa: map_key_clear(KEY_RIGHT); break;
565 case 0xb: map_key_clear(KEY_LEFT); break;
566 case 0xc: map_key_clear(KEY_UP); break;
567 case 0xd: map_key_clear(KEY_DOWN); break;
568 case 0xe: map_key_clear(KEY_POWER2); break;
569 case 0xf: map_key_clear(KEY_RESTART); break;
570 default: goto unknown;
571 }
572 break;
573 }
574
575 if ((usage->hid & 0xf0) == 0x90) { /* D-pad */
576 switch (usage->hid) {
577 case HID_GD_UP: usage->hat_dir = 1; break;
578 case HID_GD_DOWN: usage->hat_dir = 5; break;
579 case HID_GD_RIGHT: usage->hat_dir = 3; break;
580 case HID_GD_LEFT: usage->hat_dir = 7; break;
581 default: goto unknown;
582 }
583 if (field->dpad) {
584 map_abs(field->dpad);
585 goto ignore;
586 }
587 map_abs(ABS_HAT0X);
588 break;
589 }
590
591 switch (usage->hid) {
592 /* These usage IDs map directly to the usage codes. */
593 case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
594 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
595 case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL:
596 if (field->flags & HID_MAIN_ITEM_RELATIVE)
597 map_rel(usage->hid & 0xf);
598 else
599 map_abs(usage->hid & 0xf);
600 break;
601
602 case HID_GD_HATSWITCH:
603 usage->hat_min = field->logical_minimum;
604 usage->hat_max = field->logical_maximum;
605 map_abs(ABS_HAT0X);
606 break;
607
608 case HID_GD_START: map_key_clear(BTN_START); break;
609 case HID_GD_SELECT: map_key_clear(BTN_SELECT); break;
610
611 default: goto unknown;
612 }
613
614 break;
615
616 case HID_UP_LED:
617 switch (usage->hid & 0xffff) { /* HID-Value: */
618 case 0x01: map_led (LED_NUML); break; /* "Num Lock" */
619 case 0x02: map_led (LED_CAPSL); break; /* "Caps Lock" */
620 case 0x03: map_led (LED_SCROLLL); break; /* "Scroll Lock" */
621 case 0x04: map_led (LED_COMPOSE); break; /* "Compose" */
622 case 0x05: map_led (LED_KANA); break; /* "Kana" */
623 case 0x27: map_led (LED_SLEEP); break; /* "Stand-By" */
624 case 0x4c: map_led (LED_SUSPEND); break; /* "System Suspend" */
625 case 0x09: map_led (LED_MUTE); break; /* "Mute" */
626 case 0x4b: map_led (LED_MISC); break; /* "Generic Indicator" */
627 case 0x19: map_led (LED_MAIL); break; /* "Message Waiting" */
628 case 0x4d: map_led (LED_CHARGING); break; /* "External Power Connected" */
629
630 default: goto ignore;
631 }
632 break;
633
634 case HID_UP_DIGITIZER:
635 switch (usage->hid & 0xff) {
636 case 0x00: /* Undefined */
637 goto ignore;
638
639 case 0x30: /* TipPressure */
640 if (!test_bit(BTN_TOUCH, input->keybit)) {
641 device->quirks |= HID_QUIRK_NOTOUCH;
642 set_bit(EV_KEY, input->evbit);
643 set_bit(BTN_TOUCH, input->keybit);
644 }
645 map_abs_clear(ABS_PRESSURE);
646 break;
647
648 case 0x32: /* InRange */
649 switch (field->physical & 0xff) {
650 case 0x21: map_key(BTN_TOOL_MOUSE); break;
651 case 0x22: map_key(BTN_TOOL_FINGER); break;
652 default: map_key(BTN_TOOL_PEN); break;
653 }
654 break;
655
656 case 0x3c: /* Invert */
657 map_key_clear(BTN_TOOL_RUBBER);
658 break;
659
660 case 0x3d: /* X Tilt */
661 map_abs_clear(ABS_TILT_X);
662 break;
663
664 case 0x3e: /* Y Tilt */
665 map_abs_clear(ABS_TILT_Y);
666 break;
667
668 case 0x33: /* Touch */
669 case 0x42: /* TipSwitch */
670 case 0x43: /* TipSwitch2 */
671 device->quirks &= ~HID_QUIRK_NOTOUCH;
672 map_key_clear(BTN_TOUCH);
673 break;
674
675 case 0x44: /* BarrelSwitch */
676 map_key_clear(BTN_STYLUS);
677 break;
678
679 case 0x46: /* TabletPick */
680 map_key_clear(BTN_STYLUS2);
681 break;
682
683 default: goto unknown;
684 }
685 break;
686
687 case HID_UP_CONSUMER: /* USB HUT v1.12, pages 75-84 */
688 switch (usage->hid & HID_USAGE) {
689 case 0x000: goto ignore;
690 case 0x030: map_key_clear(KEY_POWER); break;
691 case 0x031: map_key_clear(KEY_RESTART); break;
692 case 0x032: map_key_clear(KEY_SLEEP); break;
693 case 0x034: map_key_clear(KEY_SLEEP); break;
694 case 0x035: map_key_clear(KEY_KBDILLUMTOGGLE); break;
695 case 0x036: map_key_clear(BTN_MISC); break;
696
697 case 0x040: map_key_clear(KEY_MENU); break; /* Menu */
698 case 0x041: map_key_clear(KEY_SELECT); break; /* Menu Pick */
699 case 0x042: map_key_clear(KEY_UP); break; /* Menu Up */
700 case 0x043: map_key_clear(KEY_DOWN); break; /* Menu Down */
701 case 0x044: map_key_clear(KEY_LEFT); break; /* Menu Left */
702 case 0x045: map_key_clear(KEY_RIGHT); break; /* Menu Right */
703 case 0x046: map_key_clear(KEY_ESC); break; /* Menu Escape */
704 case 0x047: map_key_clear(KEY_KPPLUS); break; /* Menu Value Increase */
705 case 0x048: map_key_clear(KEY_KPMINUS); break; /* Menu Value Decrease */
706
707 case 0x060: map_key_clear(KEY_INFO); break; /* Data On Screen */
708 case 0x061: map_key_clear(KEY_SUBTITLE); break; /* Closed Caption */
709 case 0x063: map_key_clear(KEY_VCR); break; /* VCR/TV */
710 case 0x065: map_key_clear(KEY_CAMERA); break; /* Snapshot */
711 case 0x069: map_key_clear(KEY_RED); break;
712 case 0x06a: map_key_clear(KEY_GREEN); break;
713 case 0x06b: map_key_clear(KEY_BLUE); break;
714 case 0x06c: map_key_clear(KEY_YELLOW); break;
715 case 0x06d: map_key_clear(KEY_ZOOM); break;
716
717 case 0x082: map_key_clear(KEY_VIDEO_NEXT); break;
718 case 0x083: map_key_clear(KEY_LAST); break;
719 case 0x084: map_key_clear(KEY_ENTER); break;
720 case 0x088: map_key_clear(KEY_PC); break;
721 case 0x089: map_key_clear(KEY_TV); break;
722 case 0x08a: map_key_clear(KEY_WWW); break;
723 case 0x08b: map_key_clear(KEY_DVD); break;
724 case 0x08c: map_key_clear(KEY_PHONE); break;
725 case 0x08d: map_key_clear(KEY_PROGRAM); break;
726 case 0x08e: map_key_clear(KEY_VIDEOPHONE); break;
727 case 0x08f: map_key_clear(KEY_GAMES); break;
728 case 0x090: map_key_clear(KEY_MEMO); break;
729 case 0x091: map_key_clear(KEY_CD); break;
730 case 0x092: map_key_clear(KEY_VCR); break;
731 case 0x093: map_key_clear(KEY_TUNER); break;
732 case 0x094: map_key_clear(KEY_EXIT); break;
733 case 0x095: map_key_clear(KEY_HELP); break;
734 case 0x096: map_key_clear(KEY_TAPE); break;
735 case 0x097: map_key_clear(KEY_TV2); break;
736 case 0x098: map_key_clear(KEY_SAT); break;
737 case 0x09a: map_key_clear(KEY_PVR); break;
738
739 case 0x09c: map_key_clear(KEY_CHANNELUP); break;
740 case 0x09d: map_key_clear(KEY_CHANNELDOWN); break;
741 case 0x0a0: map_key_clear(KEY_VCR2); break;
742
743 case 0x0b0: map_key_clear(KEY_PLAY); break;
744 case 0x0b1: map_key_clear(KEY_PAUSE); break;
745 case 0x0b2: map_key_clear(KEY_RECORD); break;
746 case 0x0b3: map_key_clear(KEY_FASTFORWARD); break;
747 case 0x0b4: map_key_clear(KEY_REWIND); break;
748 case 0x0b5: map_key_clear(KEY_NEXTSONG); break;
749 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG); break;
750 case 0x0b7: map_key_clear(KEY_STOPCD); break;
751 case 0x0b8: map_key_clear(KEY_EJECTCD); break;
752 case 0x0bc: map_key_clear(KEY_MEDIA_REPEAT); break;
753 case 0x0b9: map_key_clear(KEY_SHUFFLE); break;
754 case 0x0bf: map_key_clear(KEY_SLOW); break;
755
756 case 0x0cd: map_key_clear(KEY_PLAYPAUSE); break;
757 case 0x0e0: map_abs_clear(ABS_VOLUME); break;
758 case 0x0e2: map_key_clear(KEY_MUTE); break;
759 case 0x0e5: map_key_clear(KEY_BASSBOOST); break;
760 case 0x0e9: map_key_clear(KEY_VOLUMEUP); break;
761 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN); break;
762 case 0x0f5: map_key_clear(KEY_SLOW); break;
763
764 case 0x182: map_key_clear(KEY_BOOKMARKS); break;
765 case 0x183: map_key_clear(KEY_CONFIG); break;
766 case 0x184: map_key_clear(KEY_WORDPROCESSOR); break;
767 case 0x185: map_key_clear(KEY_EDITOR); break;
768 case 0x186: map_key_clear(KEY_SPREADSHEET); break;
769 case 0x187: map_key_clear(KEY_GRAPHICSEDITOR); break;
770 case 0x188: map_key_clear(KEY_PRESENTATION); break;
771 case 0x189: map_key_clear(KEY_DATABASE); break;
772 case 0x18a: map_key_clear(KEY_MAIL); break;
773 case 0x18b: map_key_clear(KEY_NEWS); break;
774 case 0x18c: map_key_clear(KEY_VOICEMAIL); break;
775 case 0x18d: map_key_clear(KEY_ADDRESSBOOK); break;
776 case 0x18e: map_key_clear(KEY_CALENDAR); break;
777 case 0x191: map_key_clear(KEY_FINANCE); break;
778 case 0x192: map_key_clear(KEY_CALC); break;
779 case 0x193: map_key_clear(KEY_PLAYER); break;
780 case 0x194: map_key_clear(KEY_FILE); break;
781 case 0x196: map_key_clear(KEY_WWW); break;
782 case 0x199: map_key_clear(KEY_CHAT); break;
783 case 0x19c: map_key_clear(KEY_LOGOFF); break;
784 case 0x19e: map_key_clear(KEY_COFFEE); break;
785 case 0x1a6: map_key_clear(KEY_HELP); break;
786 case 0x1a7: map_key_clear(KEY_DOCUMENTS); break;
787 case 0x1ab: map_key_clear(KEY_SPELLCHECK); break;
788 case 0x1ae: map_key_clear(KEY_KEYBOARD); break;
789 case 0x1b6: map_key_clear(KEY_IMAGES); break;
790 case 0x1b7: map_key_clear(KEY_AUDIO); break;
791 case 0x1b8: map_key_clear(KEY_VIDEO); break;
792 case 0x1bc: map_key_clear(KEY_MESSENGER); break;
793 case 0x1bd: map_key_clear(KEY_INFO); break;
794 case 0x201: map_key_clear(KEY_NEW); break;
795 case 0x202: map_key_clear(KEY_OPEN); break;
796 case 0x203: map_key_clear(KEY_CLOSE); break;
797 case 0x204: map_key_clear(KEY_EXIT); break;
798 case 0x207: map_key_clear(KEY_SAVE); break;
799 case 0x208: map_key_clear(KEY_PRINT); break;
800 case 0x209: map_key_clear(KEY_PROPS); break;
801 case 0x21a: map_key_clear(KEY_UNDO); break;
802 case 0x21b: map_key_clear(KEY_COPY); break;
803 case 0x21c: map_key_clear(KEY_CUT); break;
804 case 0x21d: map_key_clear(KEY_PASTE); break;
805 case 0x21f: map_key_clear(KEY_FIND); break;
806 case 0x221: map_key_clear(KEY_SEARCH); break;
807 case 0x222: map_key_clear(KEY_GOTO); break;
808 case 0x223: map_key_clear(KEY_HOMEPAGE); break;
809 case 0x224: map_key_clear(KEY_BACK); break;
810 case 0x225: map_key_clear(KEY_FORWARD); break;
811 case 0x226: map_key_clear(KEY_STOP); break;
812 case 0x227: map_key_clear(KEY_REFRESH); break;
813 case 0x22a: map_key_clear(KEY_BOOKMARKS); break;
814 case 0x22d: map_key_clear(KEY_ZOOMIN); break;
815 case 0x22e: map_key_clear(KEY_ZOOMOUT); break;
816 case 0x22f: map_key_clear(KEY_ZOOMRESET); break;
817 case 0x233: map_key_clear(KEY_SCROLLUP); break;
818 case 0x234: map_key_clear(KEY_SCROLLDOWN); break;
819 case 0x238: map_rel(REL_HWHEEL); break;
820 case 0x23d: map_key_clear(KEY_EDIT); break;
821 case 0x25f: map_key_clear(KEY_CANCEL); break;
822 case 0x269: map_key_clear(KEY_INSERT); break;
823 case 0x26a: map_key_clear(KEY_DELETE); break;
824 case 0x279: map_key_clear(KEY_REDO); break;
825
826 case 0x289: map_key_clear(KEY_REPLY); break;
827 case 0x28b: map_key_clear(KEY_FORWARDMAIL); break;
828 case 0x28c: map_key_clear(KEY_SEND); break;
829
830 default: goto ignore;
831 }
832 break;
833
834 case HID_UP_GENDEVCTRLS:
835 if (hidinput_setup_battery(device, HID_INPUT_REPORT, field))
836 goto ignore;
837 else
838 goto unknown;
839 break;
840
841 case HID_UP_HPVENDOR: /* Reported on a Dutch layout HP5308 */
842 set_bit(EV_REP, input->evbit);
843 switch (usage->hid & HID_USAGE) {
844 case 0x021: map_key_clear(KEY_PRINT); break;
845 case 0x070: map_key_clear(KEY_HP); break;
846 case 0x071: map_key_clear(KEY_CAMERA); break;
847 case 0x072: map_key_clear(KEY_SOUND); break;
848 case 0x073: map_key_clear(KEY_QUESTION); break;
849 case 0x080: map_key_clear(KEY_EMAIL); break;
850 case 0x081: map_key_clear(KEY_CHAT); break;
851 case 0x082: map_key_clear(KEY_SEARCH); break;
852 case 0x083: map_key_clear(KEY_CONNECT); break;
853 case 0x084: map_key_clear(KEY_FINANCE); break;
854 case 0x085: map_key_clear(KEY_SPORT); break;
855 case 0x086: map_key_clear(KEY_SHOP); break;
856 default: goto ignore;
857 }
858 break;
859
860 case HID_UP_HPVENDOR2:
861 set_bit(EV_REP, input->evbit);
862 switch (usage->hid & HID_USAGE) {
863 case 0x003: map_key_clear(KEY_BRIGHTNESSDOWN); break;
864 case 0x004: map_key_clear(KEY_BRIGHTNESSUP); break;
865 default: goto ignore;
866 }
867 break;
868
869 case HID_UP_MSVENDOR:
870 goto ignore;
871
872 case HID_UP_CUSTOM: /* Reported on Logitech and Apple USB keyboards */
873 set_bit(EV_REP, input->evbit);
874 goto ignore;
875
876 case HID_UP_LOGIVENDOR:
877 goto ignore;
878
879 case HID_UP_PID:
880 switch (usage->hid & HID_USAGE) {
881 case 0xa4: map_key_clear(BTN_DEAD); break;
882 default: goto ignore;
883 }
884 break;
885
886 default:
887 unknown:
888 if (field->report_size == 1) {
889 if (field->report->type == HID_OUTPUT_REPORT) {
890 map_led(LED_MISC);
891 break;
892 }
893 map_key(BTN_MISC);
894 break;
895 }
896 if (field->flags & HID_MAIN_ITEM_RELATIVE) {
897 map_rel(REL_MISC);
898 break;
899 }
900 map_abs(ABS_MISC);
901 break;
902 }
903
904 mapped:
905 if (device->driver->input_mapped && device->driver->input_mapped(device,
906 hidinput, field, usage, &bit, &max) < 0)
907 goto ignore;
908
909 set_bit(usage->type, input->evbit);
910
911 while (usage->code <= max && test_and_set_bit(usage->code, bit))
912 usage->code = find_next_zero_bit(bit, max + 1, usage->code);
913
914 if (usage->code > max)
915 goto ignore;
916
917
918 if (usage->type == EV_ABS) {
919
920 int a = field->logical_minimum;
921 int b = field->logical_maximum;
922
923 if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
924 a = field->logical_minimum = 0;
925 b = field->logical_maximum = 255;
926 }
927
928 if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
929 input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
930 else input_set_abs_params(input, usage->code, a, b, 0, 0);
931
932 input_abs_set_res(input, usage->code,
933 hidinput_calc_abs_res(field, usage->code));
934
935 /* use a larger default input buffer for MT devices */
936 if (usage->code == ABS_MT_POSITION_X && input->hint_events_per_packet == 0)
937 input_set_events_per_packet(input, 60);
938 }
939
940 if (usage->type == EV_ABS &&
941 (usage->hat_min < usage->hat_max || usage->hat_dir)) {
942 int i;
943 for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
944 input_set_abs_params(input, i, -1, 1, 0, 0);
945 set_bit(i, input->absbit);
946 }
947 if (usage->hat_dir && !field->dpad)
948 field->dpad = usage->code;
949 }
950
951 /* for those devices which produce Consumer volume usage as relative,
952 * we emulate pressing volumeup/volumedown appropriate number of times
953 * in hidinput_hid_event()
954 */
955 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
956 (usage->code == ABS_VOLUME)) {
957 set_bit(KEY_VOLUMEUP, input->keybit);
958 set_bit(KEY_VOLUMEDOWN, input->keybit);
959 }
960
961 if (usage->type == EV_KEY) {
962 set_bit(EV_MSC, input->evbit);
963 set_bit(MSC_SCAN, input->mscbit);
964 }
965
966 ignore:
967 return;
968
969 }
970
971 void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
972 {
973 struct input_dev *input;
974 unsigned *quirks = &hid->quirks;
975
976 if (!field->hidinput)
977 return;
978
979 input = field->hidinput->input;
980
981 if (!usage->type)
982 return;
983
984 if (usage->hat_min < usage->hat_max || usage->hat_dir) {
985 int hat_dir = usage->hat_dir;
986 if (!hat_dir)
987 hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
988 if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
989 input_event(input, usage->type, usage->code , hid_hat_to_axis[hat_dir].x);
990 input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
991 return;
992 }
993
994 if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */
995 *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
996 return;
997 }
998
999 if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */
1000 if (value) {
1001 input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
1002 return;
1003 }
1004 input_event(input, usage->type, usage->code, 0);
1005 input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
1006 return;
1007 }
1008
1009 if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */
1010 int a = field->logical_minimum;
1011 int b = field->logical_maximum;
1012 input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3));
1013 }
1014
1015 if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
1016 dbg_hid("Maximum Effects - %d\n",value);
1017 return;
1018 }
1019
1020 if (usage->hid == (HID_UP_PID | 0x7fUL)) {
1021 dbg_hid("PID Pool Report\n");
1022 return;
1023 }
1024
1025 if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
1026 return;
1027
1028 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
1029 (usage->code == ABS_VOLUME)) {
1030 int count = abs(value);
1031 int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN;
1032 int i;
1033
1034 for (i = 0; i < count; i++) {
1035 input_event(input, EV_KEY, direction, 1);
1036 input_sync(input);
1037 input_event(input, EV_KEY, direction, 0);
1038 input_sync(input);
1039 }
1040 return;
1041 }
1042
1043 /*
1044 * Ignore out-of-range values as per HID specification,
1045 * section 5.10 and 6.2.25
1046 */
1047 if ((field->flags & HID_MAIN_ITEM_VARIABLE) &&
1048 (value < field->logical_minimum ||
1049 value > field->logical_maximum)) {
1050 dbg_hid("Ignoring out-of-range value %x\n", value);
1051 return;
1052 }
1053
1054 /* report the usage code as scancode if the key status has changed */
1055 if (usage->type == EV_KEY && !!test_bit(usage->code, input->key) != value)
1056 input_event(input, EV_MSC, MSC_SCAN, usage->hid);
1057
1058 input_event(input, usage->type, usage->code, value);
1059
1060 if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY))
1061 input_event(input, usage->type, usage->code, 0);
1062 }
1063
1064 void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
1065 {
1066 struct hid_input *hidinput;
1067
1068 if (hid->quirks & HID_QUIRK_NO_INPUT_SYNC)
1069 return;
1070
1071 list_for_each_entry(hidinput, &hid->inputs, list)
1072 input_sync(hidinput->input);
1073 }
1074 EXPORT_SYMBOL_GPL(hidinput_report_event);
1075
1076 int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
1077 {
1078 struct hid_report *report;
1079 int i, j;
1080
1081 list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
1082 for (i = 0; i < report->maxfield; i++) {
1083 *field = report->field[i];
1084 for (j = 0; j < (*field)->maxusage; j++)
1085 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
1086 return j;
1087 }
1088 }
1089 return -1;
1090 }
1091 EXPORT_SYMBOL_GPL(hidinput_find_field);
1092
1093 struct hid_field *hidinput_get_led_field(struct hid_device *hid)
1094 {
1095 struct hid_report *report;
1096 struct hid_field *field;
1097 int i, j;
1098
1099 list_for_each_entry(report,
1100 &hid->report_enum[HID_OUTPUT_REPORT].report_list,
1101 list) {
1102 for (i = 0; i < report->maxfield; i++) {
1103 field = report->field[i];
1104 for (j = 0; j < field->maxusage; j++)
1105 if (field->usage[j].type == EV_LED)
1106 return field;
1107 }
1108 }
1109 return NULL;
1110 }
1111 EXPORT_SYMBOL_GPL(hidinput_get_led_field);
1112
1113 unsigned int hidinput_count_leds(struct hid_device *hid)
1114 {
1115 struct hid_report *report;
1116 struct hid_field *field;
1117 int i, j;
1118 unsigned int count = 0;
1119
1120 list_for_each_entry(report,
1121 &hid->report_enum[HID_OUTPUT_REPORT].report_list,
1122 list) {
1123 for (i = 0; i < report->maxfield; i++) {
1124 field = report->field[i];
1125 for (j = 0; j < field->maxusage; j++)
1126 if (field->usage[j].type == EV_LED &&
1127 field->value[j])
1128 count += 1;
1129 }
1130 }
1131 return count;
1132 }
1133 EXPORT_SYMBOL_GPL(hidinput_count_leds);
1134
1135 static int hidinput_open(struct input_dev *dev)
1136 {
1137 struct hid_device *hid = input_get_drvdata(dev);
1138
1139 return hid_hw_open(hid);
1140 }
1141
1142 static void hidinput_close(struct input_dev *dev)
1143 {
1144 struct hid_device *hid = input_get_drvdata(dev);
1145
1146 hid_hw_close(hid);
1147 }
1148
1149 static void report_features(struct hid_device *hid)
1150 {
1151 struct hid_driver *drv = hid->driver;
1152 struct hid_report_enum *rep_enum;
1153 struct hid_report *rep;
1154 int i, j;
1155
1156 rep_enum = &hid->report_enum[HID_FEATURE_REPORT];
1157 list_for_each_entry(rep, &rep_enum->report_list, list)
1158 for (i = 0; i < rep->maxfield; i++)
1159 for (j = 0; j < rep->field[i]->maxusage; j++) {
1160 /* Verify if Battery Strength feature is available */
1161 hidinput_setup_battery(hid, HID_FEATURE_REPORT, rep->field[i]);
1162
1163 if (drv->feature_mapping)
1164 drv->feature_mapping(hid, rep->field[i],
1165 rep->field[i]->usage + j);
1166 }
1167 }
1168
1169 static struct hid_input *hidinput_allocate(struct hid_device *hid)
1170 {
1171 struct hid_input *hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
1172 struct input_dev *input_dev = input_allocate_device();
1173 if (!hidinput || !input_dev) {
1174 kfree(hidinput);
1175 input_free_device(input_dev);
1176 hid_err(hid, "Out of memory during hid input probe\n");
1177 return NULL;
1178 }
1179
1180 input_set_drvdata(input_dev, hid);
1181 input_dev->event = hid->ll_driver->hidinput_input_event;
1182 input_dev->open = hidinput_open;
1183 input_dev->close = hidinput_close;
1184 input_dev->setkeycode = hidinput_setkeycode;
1185 input_dev->getkeycode = hidinput_getkeycode;
1186
1187 input_dev->name = hid->name;
1188 input_dev->phys = hid->phys;
1189 input_dev->uniq = hid->uniq;
1190 input_dev->id.bustype = hid->bus;
1191 input_dev->id.vendor = hid->vendor;
1192 input_dev->id.product = hid->product;
1193 input_dev->id.version = hid->version;
1194 input_dev->dev.parent = hid->dev.parent;
1195 hidinput->input = input_dev;
1196 list_add_tail(&hidinput->list, &hid->inputs);
1197
1198 return hidinput;
1199 }
1200
1201 static bool hidinput_has_been_populated(struct hid_input *hidinput)
1202 {
1203 int i;
1204 unsigned long r = 0;
1205
1206 for (i = 0; i < BITS_TO_LONGS(EV_CNT); i++)
1207 r |= hidinput->input->evbit[i];
1208
1209 for (i = 0; i < BITS_TO_LONGS(KEY_CNT); i++)
1210 r |= hidinput->input->keybit[i];
1211
1212 for (i = 0; i < BITS_TO_LONGS(REL_CNT); i++)
1213 r |= hidinput->input->relbit[i];
1214
1215 for (i = 0; i < BITS_TO_LONGS(ABS_CNT); i++)
1216 r |= hidinput->input->absbit[i];
1217
1218 for (i = 0; i < BITS_TO_LONGS(MSC_CNT); i++)
1219 r |= hidinput->input->mscbit[i];
1220
1221 for (i = 0; i < BITS_TO_LONGS(LED_CNT); i++)
1222 r |= hidinput->input->ledbit[i];
1223
1224 for (i = 0; i < BITS_TO_LONGS(SND_CNT); i++)
1225 r |= hidinput->input->sndbit[i];
1226
1227 for (i = 0; i < BITS_TO_LONGS(FF_CNT); i++)
1228 r |= hidinput->input->ffbit[i];
1229
1230 for (i = 0; i < BITS_TO_LONGS(SW_CNT); i++)
1231 r |= hidinput->input->swbit[i];
1232
1233 return !!r;
1234 }
1235
1236 static void hidinput_cleanup_hidinput(struct hid_device *hid,
1237 struct hid_input *hidinput)
1238 {
1239 struct hid_report *report;
1240 int i, k;
1241
1242 list_del(&hidinput->list);
1243 input_free_device(hidinput->input);
1244
1245 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
1246 if (k == HID_OUTPUT_REPORT &&
1247 hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
1248 continue;
1249
1250 list_for_each_entry(report, &hid->report_enum[k].report_list,
1251 list) {
1252
1253 for (i = 0; i < report->maxfield; i++)
1254 if (report->field[i]->hidinput == hidinput)
1255 report->field[i]->hidinput = NULL;
1256 }
1257 }
1258
1259 kfree(hidinput);
1260 }
1261
1262 /*
1263 * Register the input device; print a message.
1264 * Configure the input layer interface
1265 * Read all reports and initialize the absolute field values.
1266 */
1267
1268 int hidinput_connect(struct hid_device *hid, unsigned int force)
1269 {
1270 struct hid_driver *drv = hid->driver;
1271 struct hid_report *report;
1272 struct hid_input *hidinput = NULL;
1273 int i, j, k;
1274
1275 INIT_LIST_HEAD(&hid->inputs);
1276
1277 if (!force) {
1278 for (i = 0; i < hid->maxcollection; i++) {
1279 struct hid_collection *col = &hid->collection[i];
1280 if (col->type == HID_COLLECTION_APPLICATION ||
1281 col->type == HID_COLLECTION_PHYSICAL)
1282 if (IS_INPUT_APPLICATION(col->usage))
1283 break;
1284 }
1285
1286 if (i == hid->maxcollection)
1287 return -1;
1288 }
1289
1290 report_features(hid);
1291
1292 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
1293 if (k == HID_OUTPUT_REPORT &&
1294 hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
1295 continue;
1296
1297 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
1298
1299 if (!report->maxfield)
1300 continue;
1301
1302 if (!hidinput) {
1303 hidinput = hidinput_allocate(hid);
1304 if (!hidinput)
1305 goto out_unwind;
1306 }
1307
1308 for (i = 0; i < report->maxfield; i++)
1309 for (j = 0; j < report->field[i]->maxusage; j++)
1310 hidinput_configure_usage(hidinput, report->field[i],
1311 report->field[i]->usage + j);
1312
1313 if ((hid->quirks & HID_QUIRK_NO_EMPTY_INPUT) &&
1314 !hidinput_has_been_populated(hidinput))
1315 continue;
1316
1317 if (hid->quirks & HID_QUIRK_MULTI_INPUT) {
1318 /* This will leave hidinput NULL, so that it
1319 * allocates another one if we have more inputs on
1320 * the same interface. Some devices (e.g. Happ's
1321 * UGCI) cram a lot of unrelated inputs into the
1322 * same interface. */
1323 hidinput->report = report;
1324 if (drv->input_configured)
1325 drv->input_configured(hid, hidinput);
1326 if (input_register_device(hidinput->input))
1327 goto out_cleanup;
1328 hidinput = NULL;
1329 }
1330 }
1331 }
1332
1333 if (hidinput && (hid->quirks & HID_QUIRK_NO_EMPTY_INPUT) &&
1334 !hidinput_has_been_populated(hidinput)) {
1335 /* no need to register an input device not populated */
1336 hidinput_cleanup_hidinput(hid, hidinput);
1337 hidinput = NULL;
1338 }
1339
1340 if (list_empty(&hid->inputs)) {
1341 hid_err(hid, "No inputs registered, leaving\n");
1342 goto out_unwind;
1343 }
1344
1345 if (hidinput) {
1346 if (drv->input_configured)
1347 drv->input_configured(hid, hidinput);
1348 if (input_register_device(hidinput->input))
1349 goto out_cleanup;
1350 }
1351
1352 return 0;
1353
1354 out_cleanup:
1355 list_del(&hidinput->list);
1356 input_free_device(hidinput->input);
1357 kfree(hidinput);
1358 out_unwind:
1359 /* unwind the ones we already registered */
1360 hidinput_disconnect(hid);
1361
1362 return -1;
1363 }
1364 EXPORT_SYMBOL_GPL(hidinput_connect);
1365
1366 void hidinput_disconnect(struct hid_device *hid)
1367 {
1368 struct hid_input *hidinput, *next;
1369
1370 hidinput_cleanup_battery(hid);
1371
1372 list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
1373 list_del(&hidinput->list);
1374 input_unregister_device(hidinput->input);
1375 kfree(hidinput);
1376 }
1377 }
1378 EXPORT_SYMBOL_GPL(hidinput_disconnect);
1379
kernel source for telekom puls (alcatel/mediatek)