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Merge tag 'v3.10.103' into update
[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_2011_ISO),
321 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
322 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
323 USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI),
324 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
325 {}
326 };
327
328 static unsigned find_battery_quirk(struct hid_device *hdev)
329 {
330 unsigned quirks = 0;
331 const struct hid_device_id *match;
332
333 match = hid_match_id(hdev, hid_battery_quirks);
334 if (match != NULL)
335 quirks = match->driver_data;
336
337 return quirks;
338 }
339
340 static int hidinput_get_battery_property(struct power_supply *psy,
341 enum power_supply_property prop,
342 union power_supply_propval *val)
343 {
344 struct hid_device *dev = container_of(psy, struct hid_device, battery);
345 int ret = 0;
346 __u8 *buf;
347
348 switch (prop) {
349 case POWER_SUPPLY_PROP_PRESENT:
350 case POWER_SUPPLY_PROP_ONLINE:
351 val->intval = 1;
352 break;
353
354 case POWER_SUPPLY_PROP_CAPACITY:
355
356 buf = kmalloc(2 * sizeof(__u8), GFP_KERNEL);
357 if (!buf) {
358 ret = -ENOMEM;
359 break;
360 }
361 ret = dev->hid_get_raw_report(dev, dev->battery_report_id,
362 buf, 2,
363 dev->battery_report_type);
364
365 if (ret != 2) {
366 if (ret >= 0)
367 ret = -EINVAL;
368 kfree(buf);
369 break;
370 }
371
372 if (dev->battery_min < dev->battery_max &&
373 buf[1] >= dev->battery_min &&
374 buf[1] <= dev->battery_max)
375 val->intval = (100 * (buf[1] - dev->battery_min)) /
376 (dev->battery_max - dev->battery_min);
377 kfree(buf);
378 break;
379
380 case POWER_SUPPLY_PROP_MODEL_NAME:
381 val->strval = dev->name;
382 break;
383
384 case POWER_SUPPLY_PROP_STATUS:
385 val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
386 break;
387
388 case POWER_SUPPLY_PROP_SCOPE:
389 val->intval = POWER_SUPPLY_SCOPE_DEVICE;
390 break;
391
392 default:
393 ret = -EINVAL;
394 break;
395 }
396
397 return ret;
398 }
399
400 static bool hidinput_setup_battery(struct hid_device *dev, unsigned report_type, struct hid_field *field)
401 {
402 struct power_supply *battery = &dev->battery;
403 int ret;
404 unsigned quirks;
405 s32 min, max;
406
407 if (field->usage->hid != HID_DC_BATTERYSTRENGTH)
408 return false; /* no match */
409
410 if (battery->name != NULL)
411 goto out; /* already initialized? */
412
413 battery->name = kasprintf(GFP_KERNEL, "hid-%s-battery", dev->uniq);
414 if (battery->name == NULL)
415 goto out;
416
417 battery->type = POWER_SUPPLY_TYPE_BATTERY;
418 battery->properties = hidinput_battery_props;
419 battery->num_properties = ARRAY_SIZE(hidinput_battery_props);
420 battery->use_for_apm = 0;
421 battery->get_property = hidinput_get_battery_property;
422
423 quirks = find_battery_quirk(dev);
424
425 hid_dbg(dev, "device %x:%x:%x %d quirks %d\n",
426 dev->bus, dev->vendor, dev->product, dev->version, quirks);
427
428 min = field->logical_minimum;
429 max = field->logical_maximum;
430
431 if (quirks & HID_BATTERY_QUIRK_PERCENT) {
432 min = 0;
433 max = 100;
434 }
435
436 if (quirks & HID_BATTERY_QUIRK_FEATURE)
437 report_type = HID_FEATURE_REPORT;
438
439 dev->battery_min = min;
440 dev->battery_max = max;
441 dev->battery_report_type = report_type;
442 dev->battery_report_id = field->report->id;
443
444 ret = power_supply_register(&dev->dev, battery);
445 if (ret != 0) {
446 hid_warn(dev, "can't register power supply: %d\n", ret);
447 kfree(battery->name);
448 battery->name = NULL;
449 }
450
451 power_supply_powers(battery, &dev->dev);
452
453 out:
454 return true;
455 }
456
457 static void hidinput_cleanup_battery(struct hid_device *dev)
458 {
459 if (!dev->battery.name)
460 return;
461
462 power_supply_unregister(&dev->battery);
463 kfree(dev->battery.name);
464 dev->battery.name = NULL;
465 }
466 #else /* !CONFIG_HID_BATTERY_STRENGTH */
467 static bool hidinput_setup_battery(struct hid_device *dev, unsigned report_type,
468 struct hid_field *field)
469 {
470 return false;
471 }
472
473 static void hidinput_cleanup_battery(struct hid_device *dev)
474 {
475 }
476 #endif /* CONFIG_HID_BATTERY_STRENGTH */
477
478 static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
479 struct hid_usage *usage)
480 {
481 struct input_dev *input = hidinput->input;
482 struct hid_device *device = input_get_drvdata(input);
483 int max = 0, code;
484 unsigned long *bit = NULL;
485
486 field->hidinput = hidinput;
487
488 if (field->flags & HID_MAIN_ITEM_CONSTANT)
489 goto ignore;
490
491 /* Ignore if report count is out of bounds. */
492 if (field->report_count < 1)
493 goto ignore;
494
495 /* only LED usages are supported in output fields */
496 if (field->report_type == HID_OUTPUT_REPORT &&
497 (usage->hid & HID_USAGE_PAGE) != HID_UP_LED) {
498 goto ignore;
499 }
500
501 if (device->driver->input_mapping) {
502 int ret = device->driver->input_mapping(device, hidinput, field,
503 usage, &bit, &max);
504 if (ret > 0)
505 goto mapped;
506 if (ret < 0)
507 goto ignore;
508 }
509
510 switch (usage->hid & HID_USAGE_PAGE) {
511 case HID_UP_UNDEFINED:
512 goto ignore;
513
514 case HID_UP_KEYBOARD:
515 set_bit(EV_REP, input->evbit);
516
517 if ((usage->hid & HID_USAGE) < 256) {
518 if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
519 map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
520 } else
521 map_key(KEY_UNKNOWN);
522
523 break;
524
525 case HID_UP_BUTTON:
526 code = ((usage->hid - 1) & HID_USAGE);
527
528 switch (field->application) {
529 case HID_GD_MOUSE:
530 case HID_GD_POINTER: code += BTN_MOUSE; break;
531 case HID_GD_JOYSTICK:
532 if (code <= 0xf)
533 code += BTN_JOYSTICK;
534 else
535 code += BTN_TRIGGER_HAPPY - 0x10;
536 break;
537 case HID_GD_GAMEPAD:
538 if (code <= 0xf)
539 code += BTN_GAMEPAD;
540 else
541 code += BTN_TRIGGER_HAPPY - 0x10;
542 break;
543 default:
544 switch (field->physical) {
545 case HID_GD_MOUSE:
546 case HID_GD_POINTER: code += BTN_MOUSE; break;
547 case HID_GD_JOYSTICK: code += BTN_JOYSTICK; break;
548 case HID_GD_GAMEPAD: code += BTN_GAMEPAD; break;
549 default: code += BTN_MISC;
550 }
551 }
552
553 map_key(code);
554 break;
555
556 case HID_UP_SIMULATION:
557 switch (usage->hid & 0xffff) {
558 case 0xba: map_abs(ABS_RUDDER); break;
559 case 0xbb: map_abs(ABS_THROTTLE); break;
560 case 0xc4: map_abs(ABS_GAS); break;
561 case 0xc5: map_abs(ABS_BRAKE); break;
562 case 0xc8: map_abs(ABS_WHEEL); break;
563 default: goto ignore;
564 }
565 break;
566
567 case HID_UP_GENDESK:
568 if ((usage->hid & 0xf0) == 0x80) { /* SystemControl */
569 switch (usage->hid & 0xf) {
570 case 0x1: map_key_clear(KEY_POWER); break;
571 case 0x2: map_key_clear(KEY_SLEEP); break;
572 case 0x3: map_key_clear(KEY_WAKEUP); break;
573 case 0x4: map_key_clear(KEY_CONTEXT_MENU); break;
574 case 0x5: map_key_clear(KEY_MENU); break;
575 case 0x6: map_key_clear(KEY_PROG1); break;
576 case 0x7: map_key_clear(KEY_HELP); break;
577 case 0x8: map_key_clear(KEY_EXIT); break;
578 case 0x9: map_key_clear(KEY_SELECT); break;
579 case 0xa: map_key_clear(KEY_RIGHT); break;
580 case 0xb: map_key_clear(KEY_LEFT); break;
581 case 0xc: map_key_clear(KEY_UP); break;
582 case 0xd: map_key_clear(KEY_DOWN); break;
583 case 0xe: map_key_clear(KEY_POWER2); break;
584 case 0xf: map_key_clear(KEY_RESTART); break;
585 default: goto unknown;
586 }
587 break;
588 }
589
590 if ((usage->hid & 0xf0) == 0x90) { /* D-pad */
591 switch (usage->hid) {
592 case HID_GD_UP: usage->hat_dir = 1; break;
593 case HID_GD_DOWN: usage->hat_dir = 5; break;
594 case HID_GD_RIGHT: usage->hat_dir = 3; break;
595 case HID_GD_LEFT: usage->hat_dir = 7; break;
596 default: goto unknown;
597 }
598 if (field->dpad) {
599 map_abs(field->dpad);
600 goto ignore;
601 }
602 map_abs(ABS_HAT0X);
603 break;
604 }
605
606 switch (usage->hid) {
607 /* These usage IDs map directly to the usage codes. */
608 case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
609 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
610 case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL:
611 if (field->flags & HID_MAIN_ITEM_RELATIVE)
612 map_rel(usage->hid & 0xf);
613 else
614 map_abs(usage->hid & 0xf);
615 break;
616
617 case HID_GD_HATSWITCH:
618 usage->hat_min = field->logical_minimum;
619 usage->hat_max = field->logical_maximum;
620 map_abs(ABS_HAT0X);
621 break;
622
623 case HID_GD_START: map_key_clear(BTN_START); break;
624 case HID_GD_SELECT: map_key_clear(BTN_SELECT); break;
625
626 default: goto unknown;
627 }
628
629 break;
630
631 case HID_UP_LED:
632 switch (usage->hid & 0xffff) { /* HID-Value: */
633 case 0x01: map_led (LED_NUML); break; /* "Num Lock" */
634 case 0x02: map_led (LED_CAPSL); break; /* "Caps Lock" */
635 case 0x03: map_led (LED_SCROLLL); break; /* "Scroll Lock" */
636 case 0x04: map_led (LED_COMPOSE); break; /* "Compose" */
637 case 0x05: map_led (LED_KANA); break; /* "Kana" */
638 case 0x27: map_led (LED_SLEEP); break; /* "Stand-By" */
639 case 0x4c: map_led (LED_SUSPEND); break; /* "System Suspend" */
640 case 0x09: map_led (LED_MUTE); break; /* "Mute" */
641 case 0x4b: map_led (LED_MISC); break; /* "Generic Indicator" */
642 case 0x19: map_led (LED_MAIL); break; /* "Message Waiting" */
643 case 0x4d: map_led (LED_CHARGING); break; /* "External Power Connected" */
644
645 default: goto ignore;
646 }
647 break;
648
649 case HID_UP_DIGITIZER:
650 switch (usage->hid & 0xff) {
651 case 0x00: /* Undefined */
652 goto ignore;
653
654 case 0x30: /* TipPressure */
655 if (!test_bit(BTN_TOUCH, input->keybit)) {
656 device->quirks |= HID_QUIRK_NOTOUCH;
657 set_bit(EV_KEY, input->evbit);
658 set_bit(BTN_TOUCH, input->keybit);
659 }
660 map_abs_clear(ABS_PRESSURE);
661 break;
662
663 case 0x32: /* InRange */
664 switch (field->physical & 0xff) {
665 case 0x21: map_key(BTN_TOOL_MOUSE); break;
666 case 0x22: map_key(BTN_TOOL_FINGER); break;
667 default: map_key(BTN_TOOL_PEN); break;
668 }
669 break;
670
671 case 0x3c: /* Invert */
672 map_key_clear(BTN_TOOL_RUBBER);
673 break;
674
675 case 0x3d: /* X Tilt */
676 map_abs_clear(ABS_TILT_X);
677 break;
678
679 case 0x3e: /* Y Tilt */
680 map_abs_clear(ABS_TILT_Y);
681 break;
682
683 case 0x33: /* Touch */
684 case 0x42: /* TipSwitch */
685 case 0x43: /* TipSwitch2 */
686 device->quirks &= ~HID_QUIRK_NOTOUCH;
687 map_key_clear(BTN_TOUCH);
688 break;
689
690 case 0x44: /* BarrelSwitch */
691 map_key_clear(BTN_STYLUS);
692 break;
693
694 case 0x46: /* TabletPick */
695 map_key_clear(BTN_STYLUS2);
696 break;
697
698 default: goto unknown;
699 }
700 break;
701
702 case HID_UP_CONSUMER: /* USB HUT v1.12, pages 75-84 */
703 switch (usage->hid & HID_USAGE) {
704 case 0x000: goto ignore;
705 case 0x030: map_key_clear(KEY_POWER); break;
706 case 0x031: map_key_clear(KEY_RESTART); break;
707 case 0x032: map_key_clear(KEY_SLEEP); break;
708 case 0x034: map_key_clear(KEY_SLEEP); break;
709 case 0x035: map_key_clear(KEY_KBDILLUMTOGGLE); break;
710 case 0x036: map_key_clear(BTN_MISC); break;
711
712 case 0x040: map_key_clear(KEY_MENU); break; /* Menu */
713 case 0x041: map_key_clear(KEY_SELECT); break; /* Menu Pick */
714 case 0x042: map_key_clear(KEY_UP); break; /* Menu Up */
715 case 0x043: map_key_clear(KEY_DOWN); break; /* Menu Down */
716 case 0x044: map_key_clear(KEY_LEFT); break; /* Menu Left */
717 case 0x045: map_key_clear(KEY_RIGHT); break; /* Menu Right */
718 case 0x046: map_key_clear(KEY_ESC); break; /* Menu Escape */
719 case 0x047: map_key_clear(KEY_KPPLUS); break; /* Menu Value Increase */
720 case 0x048: map_key_clear(KEY_KPMINUS); break; /* Menu Value Decrease */
721
722 case 0x060: map_key_clear(KEY_INFO); break; /* Data On Screen */
723 case 0x061: map_key_clear(KEY_SUBTITLE); break; /* Closed Caption */
724 case 0x063: map_key_clear(KEY_VCR); break; /* VCR/TV */
725 case 0x065: map_key_clear(KEY_CAMERA); break; /* Snapshot */
726 case 0x069: map_key_clear(KEY_RED); break;
727 case 0x06a: map_key_clear(KEY_GREEN); break;
728 case 0x06b: map_key_clear(KEY_BLUE); break;
729 case 0x06c: map_key_clear(KEY_YELLOW); break;
730 case 0x06d: map_key_clear(KEY_ZOOM); break;
731
732 case 0x06f: map_key_clear(KEY_BRIGHTNESSUP); break;
733 case 0x070: map_key_clear(KEY_BRIGHTNESSDOWN); break;
734 case 0x072: map_key_clear(KEY_BRIGHTNESS_TOGGLE); break;
735 case 0x073: map_key_clear(KEY_BRIGHTNESS_MIN); break;
736 case 0x074: map_key_clear(KEY_BRIGHTNESS_MAX); break;
737 case 0x075: map_key_clear(KEY_BRIGHTNESS_AUTO); break;
738
739 case 0x082: map_key_clear(KEY_VIDEO_NEXT); break;
740 case 0x083: map_key_clear(KEY_LAST); break;
741 case 0x084: map_key_clear(KEY_ENTER); break;
742 case 0x088: map_key_clear(KEY_PC); break;
743 case 0x089: map_key_clear(KEY_TV); break;
744 case 0x08a: map_key_clear(KEY_WWW); break;
745 case 0x08b: map_key_clear(KEY_DVD); break;
746 case 0x08c: map_key_clear(KEY_PHONE); break;
747 case 0x08d: map_key_clear(KEY_PROGRAM); break;
748 case 0x08e: map_key_clear(KEY_VIDEOPHONE); break;
749 case 0x08f: map_key_clear(KEY_GAMES); break;
750 case 0x090: map_key_clear(KEY_MEMO); break;
751 case 0x091: map_key_clear(KEY_CD); break;
752 case 0x092: map_key_clear(KEY_VCR); break;
753 case 0x093: map_key_clear(KEY_TUNER); break;
754 case 0x094: map_key_clear(KEY_EXIT); break;
755 case 0x095: map_key_clear(KEY_HELP); break;
756 case 0x096: map_key_clear(KEY_TAPE); break;
757 case 0x097: map_key_clear(KEY_TV2); break;
758 case 0x098: map_key_clear(KEY_SAT); break;
759 case 0x09a: map_key_clear(KEY_PVR); break;
760
761 case 0x09c: map_key_clear(KEY_CHANNELUP); break;
762 case 0x09d: map_key_clear(KEY_CHANNELDOWN); break;
763 case 0x0a0: map_key_clear(KEY_VCR2); break;
764
765 case 0x0b0: map_key_clear(KEY_PLAY); break;
766 case 0x0b1: map_key_clear(KEY_PAUSE); break;
767 case 0x0b2: map_key_clear(KEY_RECORD); break;
768 case 0x0b3: map_key_clear(KEY_FASTFORWARD); break;
769 case 0x0b4: map_key_clear(KEY_REWIND); break;
770 case 0x0b5: map_key_clear(KEY_NEXTSONG); break;
771 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG); break;
772 case 0x0b7: map_key_clear(KEY_STOPCD); break;
773 case 0x0b8: map_key_clear(KEY_EJECTCD); break;
774 case 0x0bc: map_key_clear(KEY_MEDIA_REPEAT); break;
775 case 0x0b9: map_key_clear(KEY_SHUFFLE); break;
776 case 0x0bf: map_key_clear(KEY_SLOW); break;
777
778 case 0x0cd: map_key_clear(KEY_PLAYPAUSE); break;
779 case 0x0cf: map_key_clear(KEY_VOICECOMMAND); break;
780 case 0x0e0: map_abs_clear(ABS_VOLUME); break;
781 case 0x0e2: map_key_clear(KEY_MUTE); break;
782 case 0x0e5: map_key_clear(KEY_BASSBOOST); break;
783 case 0x0e9: map_key_clear(KEY_VOLUMEUP); break;
784 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN); break;
785 case 0x0f5: map_key_clear(KEY_SLOW); break;
786
787 case 0x181: map_key_clear(KEY_BUTTONCONFIG); break;
788 case 0x182: map_key_clear(KEY_BOOKMARKS); break;
789 case 0x183: map_key_clear(KEY_CONFIG); break;
790 case 0x184: map_key_clear(KEY_WORDPROCESSOR); break;
791 case 0x185: map_key_clear(KEY_EDITOR); break;
792 case 0x186: map_key_clear(KEY_SPREADSHEET); break;
793 case 0x187: map_key_clear(KEY_GRAPHICSEDITOR); break;
794 case 0x188: map_key_clear(KEY_PRESENTATION); break;
795 case 0x189: map_key_clear(KEY_DATABASE); break;
796 case 0x18a: map_key_clear(KEY_MAIL); break;
797 case 0x18b: map_key_clear(KEY_NEWS); break;
798 case 0x18c: map_key_clear(KEY_VOICEMAIL); break;
799 case 0x18d: map_key_clear(KEY_ADDRESSBOOK); break;
800 case 0x18e: map_key_clear(KEY_CALENDAR); break;
801 case 0x18f: map_key_clear(KEY_TASKMANAGER); break;
802 case 0x190: map_key_clear(KEY_JOURNAL); break;
803 case 0x191: map_key_clear(KEY_FINANCE); break;
804 case 0x192: map_key_clear(KEY_CALC); break;
805 case 0x193: map_key_clear(KEY_PLAYER); break;
806 case 0x194: map_key_clear(KEY_FILE); break;
807 case 0x196: map_key_clear(KEY_WWW); break;
808 case 0x199: map_key_clear(KEY_CHAT); break;
809 case 0x19c: map_key_clear(KEY_LOGOFF); break;
810 case 0x19e: map_key_clear(KEY_COFFEE); break;
811 case 0x19f: map_key_clear(KEY_CONTROLPANEL); break;
812 case 0x1a2: map_key_clear(KEY_APPSELECT); break;
813 case 0x1a3: map_key_clear(KEY_NEXT); break;
814 case 0x1a4: map_key_clear(KEY_PREVIOUS); break;
815 case 0x1a6: map_key_clear(KEY_HELP); break;
816 case 0x1a7: map_key_clear(KEY_DOCUMENTS); break;
817 case 0x1ab: map_key_clear(KEY_SPELLCHECK); break;
818 case 0x1ae: map_key_clear(KEY_KEYBOARD); break;
819 case 0x1b1: map_key_clear(KEY_SCREENSAVER); break;
820 case 0x1b4: map_key_clear(KEY_FILE); break;
821 case 0x1b6: map_key_clear(KEY_IMAGES); break;
822 case 0x1b7: map_key_clear(KEY_AUDIO); break;
823 case 0x1b8: map_key_clear(KEY_VIDEO); break;
824 case 0x1bc: map_key_clear(KEY_MESSENGER); break;
825 case 0x1bd: map_key_clear(KEY_INFO); break;
826 case 0x201: map_key_clear(KEY_NEW); break;
827 case 0x202: map_key_clear(KEY_OPEN); break;
828 case 0x203: map_key_clear(KEY_CLOSE); break;
829 case 0x204: map_key_clear(KEY_EXIT); break;
830 case 0x207: map_key_clear(KEY_SAVE); break;
831 case 0x208: map_key_clear(KEY_PRINT); break;
832 case 0x209: map_key_clear(KEY_PROPS); break;
833 case 0x21a: map_key_clear(KEY_UNDO); break;
834 case 0x21b: map_key_clear(KEY_COPY); break;
835 case 0x21c: map_key_clear(KEY_CUT); break;
836 case 0x21d: map_key_clear(KEY_PASTE); break;
837 case 0x21f: map_key_clear(KEY_FIND); break;
838 case 0x221: map_key_clear(KEY_SEARCH); break;
839 case 0x222: map_key_clear(KEY_GOTO); break;
840 case 0x223: map_key_clear(KEY_HOMEPAGE); break;
841 case 0x224: map_key_clear(KEY_BACK); break;
842 case 0x225: map_key_clear(KEY_FORWARD); break;
843 case 0x226: map_key_clear(KEY_STOP); break;
844 case 0x227: map_key_clear(KEY_REFRESH); break;
845 case 0x22a: map_key_clear(KEY_BOOKMARKS); break;
846 case 0x22d: map_key_clear(KEY_ZOOMIN); break;
847 case 0x22e: map_key_clear(KEY_ZOOMOUT); break;
848 case 0x22f: map_key_clear(KEY_ZOOMRESET); break;
849 case 0x233: map_key_clear(KEY_SCROLLUP); break;
850 case 0x234: map_key_clear(KEY_SCROLLDOWN); break;
851 case 0x238: map_rel(REL_HWHEEL); break;
852 case 0x23d: map_key_clear(KEY_EDIT); break;
853 case 0x25f: map_key_clear(KEY_CANCEL); break;
854 case 0x269: map_key_clear(KEY_INSERT); break;
855 case 0x26a: map_key_clear(KEY_DELETE); break;
856 case 0x279: map_key_clear(KEY_REDO); break;
857
858 case 0x289: map_key_clear(KEY_REPLY); break;
859 case 0x28b: map_key_clear(KEY_FORWARDMAIL); break;
860 case 0x28c: map_key_clear(KEY_SEND); break;
861
862 default: goto ignore;
863 }
864 break;
865
866 case HID_UP_GENDEVCTRLS:
867 if (hidinput_setup_battery(device, HID_INPUT_REPORT, field))
868 goto ignore;
869 else
870 goto unknown;
871 break;
872
873 case HID_UP_HPVENDOR: /* Reported on a Dutch layout HP5308 */
874 set_bit(EV_REP, input->evbit);
875 switch (usage->hid & HID_USAGE) {
876 case 0x021: map_key_clear(KEY_PRINT); break;
877 case 0x070: map_key_clear(KEY_HP); break;
878 case 0x071: map_key_clear(KEY_CAMERA); break;
879 case 0x072: map_key_clear(KEY_SOUND); break;
880 case 0x073: map_key_clear(KEY_QUESTION); break;
881 case 0x080: map_key_clear(KEY_EMAIL); break;
882 case 0x081: map_key_clear(KEY_CHAT); break;
883 case 0x082: map_key_clear(KEY_SEARCH); break;
884 case 0x083: map_key_clear(KEY_CONNECT); break;
885 case 0x084: map_key_clear(KEY_FINANCE); break;
886 case 0x085: map_key_clear(KEY_SPORT); break;
887 case 0x086: map_key_clear(KEY_SHOP); break;
888 default: goto ignore;
889 }
890 break;
891
892 case HID_UP_HPVENDOR2:
893 set_bit(EV_REP, input->evbit);
894 switch (usage->hid & HID_USAGE) {
895 case 0x003: map_key_clear(KEY_BRIGHTNESSDOWN); break;
896 case 0x004: map_key_clear(KEY_BRIGHTNESSUP); break;
897 default: goto ignore;
898 }
899 break;
900
901 case HID_UP_MSVENDOR:
902 goto ignore;
903
904 case HID_UP_CUSTOM: /* Reported on Logitech and Apple USB keyboards */
905 set_bit(EV_REP, input->evbit);
906 goto ignore;
907
908 case HID_UP_LOGIVENDOR:
909 goto ignore;
910
911 case HID_UP_PID:
912 switch (usage->hid & HID_USAGE) {
913 case 0xa4: map_key_clear(BTN_DEAD); break;
914 default: goto ignore;
915 }
916 break;
917
918 default:
919 unknown:
920 if (field->report_size == 1) {
921 if (field->report->type == HID_OUTPUT_REPORT) {
922 map_led(LED_MISC);
923 break;
924 }
925 map_key(BTN_MISC);
926 break;
927 }
928 if (field->flags & HID_MAIN_ITEM_RELATIVE) {
929 map_rel(REL_MISC);
930 break;
931 }
932 map_abs(ABS_MISC);
933 break;
934 }
935
936 mapped:
937 if (device->driver->input_mapped && device->driver->input_mapped(device,
938 hidinput, field, usage, &bit, &max) < 0)
939 goto ignore;
940
941 set_bit(usage->type, input->evbit);
942
943 while (usage->code <= max && test_and_set_bit(usage->code, bit))
944 usage->code = find_next_zero_bit(bit, max + 1, usage->code);
945
946 if (usage->code > max)
947 goto ignore;
948
949
950 if (usage->type == EV_ABS) {
951
952 int a = field->logical_minimum;
953 int b = field->logical_maximum;
954
955 if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
956 a = field->logical_minimum = 0;
957 b = field->logical_maximum = 255;
958 }
959
960 if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
961 input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
962 else input_set_abs_params(input, usage->code, a, b, 0, 0);
963
964 input_abs_set_res(input, usage->code,
965 hidinput_calc_abs_res(field, usage->code));
966
967 /* use a larger default input buffer for MT devices */
968 if (usage->code == ABS_MT_POSITION_X && input->hint_events_per_packet == 0)
969 input_set_events_per_packet(input, 60);
970 }
971
972 if (usage->type == EV_ABS &&
973 (usage->hat_min < usage->hat_max || usage->hat_dir)) {
974 int i;
975 for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
976 input_set_abs_params(input, i, -1, 1, 0, 0);
977 set_bit(i, input->absbit);
978 }
979 if (usage->hat_dir && !field->dpad)
980 field->dpad = usage->code;
981 }
982
983 /* for those devices which produce Consumer volume usage as relative,
984 * we emulate pressing volumeup/volumedown appropriate number of times
985 * in hidinput_hid_event()
986 */
987 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
988 (usage->code == ABS_VOLUME)) {
989 set_bit(KEY_VOLUMEUP, input->keybit);
990 set_bit(KEY_VOLUMEDOWN, input->keybit);
991 }
992
993 if (usage->type == EV_KEY) {
994 set_bit(EV_MSC, input->evbit);
995 set_bit(MSC_SCAN, input->mscbit);
996 }
997
998 ignore:
999 return;
1000
1001 }
1002
1003 void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
1004 {
1005 struct input_dev *input;
1006 unsigned *quirks = &hid->quirks;
1007
1008 if (!field->hidinput)
1009 return;
1010
1011 input = field->hidinput->input;
1012
1013 if (!usage->type)
1014 return;
1015
1016 if (usage->hat_min < usage->hat_max || usage->hat_dir) {
1017 int hat_dir = usage->hat_dir;
1018 if (!hat_dir)
1019 hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
1020 if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
1021 input_event(input, usage->type, usage->code , hid_hat_to_axis[hat_dir].x);
1022 input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
1023 return;
1024 }
1025
1026 if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */
1027 *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
1028 return;
1029 }
1030
1031 if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */
1032 if (value) {
1033 input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
1034 return;
1035 }
1036 input_event(input, usage->type, usage->code, 0);
1037 input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
1038 return;
1039 }
1040
1041 if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */
1042 int a = field->logical_minimum;
1043 int b = field->logical_maximum;
1044 input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3));
1045 }
1046
1047 if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
1048 dbg_hid("Maximum Effects - %d\n",value);
1049 return;
1050 }
1051
1052 if (usage->hid == (HID_UP_PID | 0x7fUL)) {
1053 dbg_hid("PID Pool Report\n");
1054 return;
1055 }
1056
1057 if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
1058 return;
1059
1060 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
1061 (usage->code == ABS_VOLUME)) {
1062 int count = abs(value);
1063 int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN;
1064 int i;
1065
1066 for (i = 0; i < count; i++) {
1067 input_event(input, EV_KEY, direction, 1);
1068 input_sync(input);
1069 input_event(input, EV_KEY, direction, 0);
1070 input_sync(input);
1071 }
1072 return;
1073 }
1074
1075 /*
1076 * Ignore out-of-range values as per HID specification,
1077 * section 5.10 and 6.2.25
1078 */
1079 if ((field->flags & HID_MAIN_ITEM_VARIABLE) &&
1080 (value < field->logical_minimum ||
1081 value > field->logical_maximum)) {
1082 dbg_hid("Ignoring out-of-range value %x\n", value);
1083 return;
1084 }
1085
1086 /*
1087 * Ignore reports for absolute data if the data didn't change. This is
1088 * not only an optimization but also fixes 'dead' key reports. Some
1089 * RollOver implementations for localized keys (like BACKSLASH/PIPE; HID
1090 * 0x31 and 0x32) report multiple keys, even though a localized keyboard
1091 * can only have one of them physically available. The 'dead' keys
1092 * report constant 0. As all map to the same keycode, they'd confuse
1093 * the input layer. If we filter the 'dead' keys on the HID level, we
1094 * skip the keycode translation and only forward real events.
1095 */
1096 if (!(field->flags & (HID_MAIN_ITEM_RELATIVE |
1097 HID_MAIN_ITEM_BUFFERED_BYTE)) &&
1098 (field->flags & HID_MAIN_ITEM_VARIABLE) &&
1099 usage->usage_index < field->maxusage &&
1100 value == field->value[usage->usage_index])
1101 return;
1102
1103 /* report the usage code as scancode if the key status has changed */
1104 if (usage->type == EV_KEY && (!!test_bit(usage->code, input->key)) != value)
1105 input_event(input, EV_MSC, MSC_SCAN, usage->hid);
1106
1107 input_event(input, usage->type, usage->code, value);
1108
1109 if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY))
1110 input_event(input, usage->type, usage->code, 0);
1111 }
1112
1113 void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
1114 {
1115 struct hid_input *hidinput;
1116
1117 if (hid->quirks & HID_QUIRK_NO_INPUT_SYNC)
1118 return;
1119
1120 list_for_each_entry(hidinput, &hid->inputs, list)
1121 input_sync(hidinput->input);
1122 }
1123 EXPORT_SYMBOL_GPL(hidinput_report_event);
1124
1125 int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
1126 {
1127 struct hid_report *report;
1128 int i, j;
1129
1130 list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
1131 for (i = 0; i < report->maxfield; i++) {
1132 *field = report->field[i];
1133 for (j = 0; j < (*field)->maxusage; j++)
1134 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
1135 return j;
1136 }
1137 }
1138 return -1;
1139 }
1140 EXPORT_SYMBOL_GPL(hidinput_find_field);
1141
1142 struct hid_field *hidinput_get_led_field(struct hid_device *hid)
1143 {
1144 struct hid_report *report;
1145 struct hid_field *field;
1146 int i, j;
1147
1148 list_for_each_entry(report,
1149 &hid->report_enum[HID_OUTPUT_REPORT].report_list,
1150 list) {
1151 for (i = 0; i < report->maxfield; i++) {
1152 field = report->field[i];
1153 for (j = 0; j < field->maxusage; j++)
1154 if (field->usage[j].type == EV_LED)
1155 return field;
1156 }
1157 }
1158 return NULL;
1159 }
1160 EXPORT_SYMBOL_GPL(hidinput_get_led_field);
1161
1162 unsigned int hidinput_count_leds(struct hid_device *hid)
1163 {
1164 struct hid_report *report;
1165 struct hid_field *field;
1166 int i, j;
1167 unsigned int count = 0;
1168
1169 list_for_each_entry(report,
1170 &hid->report_enum[HID_OUTPUT_REPORT].report_list,
1171 list) {
1172 for (i = 0; i < report->maxfield; i++) {
1173 field = report->field[i];
1174 for (j = 0; j < field->maxusage; j++)
1175 if (field->usage[j].type == EV_LED &&
1176 field->value[j])
1177 count += 1;
1178 }
1179 }
1180 return count;
1181 }
1182 EXPORT_SYMBOL_GPL(hidinput_count_leds);
1183
1184 static int hidinput_open(struct input_dev *dev)
1185 {
1186 struct hid_device *hid = input_get_drvdata(dev);
1187
1188 return hid_hw_open(hid);
1189 }
1190
1191 static void hidinput_close(struct input_dev *dev)
1192 {
1193 struct hid_device *hid = input_get_drvdata(dev);
1194
1195 hid_hw_close(hid);
1196 }
1197
1198 static void report_features(struct hid_device *hid)
1199 {
1200 struct hid_driver *drv = hid->driver;
1201 struct hid_report_enum *rep_enum;
1202 struct hid_report *rep;
1203 int i, j;
1204
1205 rep_enum = &hid->report_enum[HID_FEATURE_REPORT];
1206 list_for_each_entry(rep, &rep_enum->report_list, list)
1207 for (i = 0; i < rep->maxfield; i++) {
1208 /* Ignore if report count is out of bounds. */
1209 if (rep->field[i]->report_count < 1)
1210 continue;
1211
1212 for (j = 0; j < rep->field[i]->maxusage; j++) {
1213 /* Verify if Battery Strength feature is available */
1214 hidinput_setup_battery(hid, HID_FEATURE_REPORT, rep->field[i]);
1215
1216 if (drv->feature_mapping)
1217 drv->feature_mapping(hid, rep->field[i],
1218 rep->field[i]->usage + j);
1219 }
1220 }
1221 }
1222
1223 static struct hid_input *hidinput_allocate(struct hid_device *hid)
1224 {
1225 struct hid_input *hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
1226 struct input_dev *input_dev = input_allocate_device();
1227 if (!hidinput || !input_dev) {
1228 kfree(hidinput);
1229 input_free_device(input_dev);
1230 hid_err(hid, "Out of memory during hid input probe\n");
1231 return NULL;
1232 }
1233
1234 input_set_drvdata(input_dev, hid);
1235 input_dev->event = hid->ll_driver->hidinput_input_event;
1236 input_dev->open = hidinput_open;
1237 input_dev->close = hidinput_close;
1238 input_dev->setkeycode = hidinput_setkeycode;
1239 input_dev->getkeycode = hidinput_getkeycode;
1240
1241 input_dev->name = hid->name;
1242 input_dev->phys = hid->phys;
1243 input_dev->uniq = hid->uniq;
1244 input_dev->id.bustype = hid->bus;
1245 input_dev->id.vendor = hid->vendor;
1246 input_dev->id.product = hid->product;
1247 input_dev->id.version = hid->version;
1248 input_dev->dev.parent = hid->dev.parent;
1249 hidinput->input = input_dev;
1250 list_add_tail(&hidinput->list, &hid->inputs);
1251
1252 return hidinput;
1253 }
1254
1255 static bool hidinput_has_been_populated(struct hid_input *hidinput)
1256 {
1257 int i;
1258 unsigned long r = 0;
1259
1260 for (i = 0; i < BITS_TO_LONGS(EV_CNT); i++)
1261 r |= hidinput->input->evbit[i];
1262
1263 for (i = 0; i < BITS_TO_LONGS(KEY_CNT); i++)
1264 r |= hidinput->input->keybit[i];
1265
1266 for (i = 0; i < BITS_TO_LONGS(REL_CNT); i++)
1267 r |= hidinput->input->relbit[i];
1268
1269 for (i = 0; i < BITS_TO_LONGS(ABS_CNT); i++)
1270 r |= hidinput->input->absbit[i];
1271
1272 for (i = 0; i < BITS_TO_LONGS(MSC_CNT); i++)
1273 r |= hidinput->input->mscbit[i];
1274
1275 for (i = 0; i < BITS_TO_LONGS(LED_CNT); i++)
1276 r |= hidinput->input->ledbit[i];
1277
1278 for (i = 0; i < BITS_TO_LONGS(SND_CNT); i++)
1279 r |= hidinput->input->sndbit[i];
1280
1281 for (i = 0; i < BITS_TO_LONGS(FF_CNT); i++)
1282 r |= hidinput->input->ffbit[i];
1283
1284 for (i = 0; i < BITS_TO_LONGS(SW_CNT); i++)
1285 r |= hidinput->input->swbit[i];
1286
1287 return !!r;
1288 }
1289
1290 static void hidinput_cleanup_hidinput(struct hid_device *hid,
1291 struct hid_input *hidinput)
1292 {
1293 struct hid_report *report;
1294 int i, k;
1295
1296 list_del(&hidinput->list);
1297 input_free_device(hidinput->input);
1298
1299 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
1300 if (k == HID_OUTPUT_REPORT &&
1301 hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
1302 continue;
1303
1304 list_for_each_entry(report, &hid->report_enum[k].report_list,
1305 list) {
1306
1307 for (i = 0; i < report->maxfield; i++)
1308 if (report->field[i]->hidinput == hidinput)
1309 report->field[i]->hidinput = NULL;
1310 }
1311 }
1312
1313 kfree(hidinput);
1314 }
1315
1316 /*
1317 * Register the input device; print a message.
1318 * Configure the input layer interface
1319 * Read all reports and initialize the absolute field values.
1320 */
1321
1322 int hidinput_connect(struct hid_device *hid, unsigned int force)
1323 {
1324 struct hid_driver *drv = hid->driver;
1325 struct hid_report *report;
1326 struct hid_input *hidinput = NULL;
1327 int i, j, k;
1328
1329 INIT_LIST_HEAD(&hid->inputs);
1330
1331 if (!force) {
1332 for (i = 0; i < hid->maxcollection; i++) {
1333 struct hid_collection *col = &hid->collection[i];
1334 if (col->type == HID_COLLECTION_APPLICATION ||
1335 col->type == HID_COLLECTION_PHYSICAL)
1336 if (IS_INPUT_APPLICATION(col->usage))
1337 break;
1338 }
1339
1340 if (i == hid->maxcollection)
1341 return -1;
1342 }
1343
1344 report_features(hid);
1345
1346 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
1347 if (k == HID_OUTPUT_REPORT &&
1348 hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
1349 continue;
1350
1351 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
1352
1353 if (!report->maxfield)
1354 continue;
1355
1356 if (!hidinput) {
1357 hidinput = hidinput_allocate(hid);
1358 if (!hidinput)
1359 goto out_unwind;
1360 }
1361
1362 for (i = 0; i < report->maxfield; i++)
1363 for (j = 0; j < report->field[i]->maxusage; j++)
1364 hidinput_configure_usage(hidinput, report->field[i],
1365 report->field[i]->usage + j);
1366
1367 if ((hid->quirks & HID_QUIRK_NO_EMPTY_INPUT) &&
1368 !hidinput_has_been_populated(hidinput))
1369 continue;
1370
1371 if (hid->quirks & HID_QUIRK_MULTI_INPUT) {
1372 /* This will leave hidinput NULL, so that it
1373 * allocates another one if we have more inputs on
1374 * the same interface. Some devices (e.g. Happ's
1375 * UGCI) cram a lot of unrelated inputs into the
1376 * same interface. */
1377 hidinput->report = report;
1378 if (drv->input_configured &&
1379 drv->input_configured(hid, hidinput))
1380 goto out_cleanup;
1381 if (input_register_device(hidinput->input))
1382 goto out_cleanup;
1383 hidinput = NULL;
1384 }
1385 }
1386 }
1387
1388 if (hidinput && (hid->quirks & HID_QUIRK_NO_EMPTY_INPUT) &&
1389 !hidinput_has_been_populated(hidinput)) {
1390 /* no need to register an input device not populated */
1391 hidinput_cleanup_hidinput(hid, hidinput);
1392 hidinput = NULL;
1393 }
1394
1395 if (list_empty(&hid->inputs)) {
1396 hid_err(hid, "No inputs registered, leaving\n");
1397 goto out_unwind;
1398 }
1399
1400 if (hidinput) {
1401 if (drv->input_configured &&
1402 drv->input_configured(hid, hidinput))
1403 goto out_cleanup;
1404 if (input_register_device(hidinput->input))
1405 goto out_cleanup;
1406 }
1407
1408 return 0;
1409
1410 out_cleanup:
1411 list_del(&hidinput->list);
1412 input_free_device(hidinput->input);
1413 kfree(hidinput);
1414 out_unwind:
1415 /* unwind the ones we already registered */
1416 hidinput_disconnect(hid);
1417
1418 return -1;
1419 }
1420 EXPORT_SYMBOL_GPL(hidinput_connect);
1421
1422 void hidinput_disconnect(struct hid_device *hid)
1423 {
1424 struct hid_input *hidinput, *next;
1425
1426 hidinput_cleanup_battery(hid);
1427
1428 list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
1429 list_del(&hidinput->list);
1430 input_unregister_device(hidinput->input);
1431 kfree(hidinput);
1432 }
1433 }
1434 EXPORT_SYMBOL_GPL(hidinput_disconnect);
1435
kernel source for telekom puls (alcatel/mediatek)