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HID: hid-input: Simplify conditional expression
[mirror_ubuntu-bionic-kernel.git] / drivers / hid / hid-input.c
CommitLineData
dde5845a 1/*
dde5845a 2 * Copyright (c) 2000-2001 Vojtech Pavlik
7d39e849 3 * Copyright (c) 2006-2010 Jiri Kosina
dde5845a
JK		 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>
dde5845a 31
dde5845a 32#include <linux/hid.h>
c080d89a 33#include <linux/hid-debug.h>
dde5845a 34
bbc21cfd
JF		 35#include "hid-ids.h"
36
dde5845a
JK		 37#define unk KEY_UNKNOWN
38
39static const unsigned char hid_keyboard[256] = {
40 0, 0, 0, 0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
41 50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44, 2, 3,
42 4, 5, 6, 7, 8, 9, 10, 11, 28, 1, 14, 15, 57, 12, 13, 26,
43 27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
44 65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
45 105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
46 72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190,
47 191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113,
48 115,114,unk,unk,unk,121,unk, 89, 93,124, 92, 94, 95,unk,unk,unk,
437f3b19 49 122,123, 90, 91, 85,unk,unk,unk,unk,unk,unk,unk,111,unk,unk,unk,
dde5845a 50 unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
1fe8736d 51 unk,unk,unk,unk,unk,unk,179,180,unk,unk,unk,unk,unk,unk,unk,unk,
dde5845a 52 unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
437f3b19 53 unk,unk,unk,unk,unk,unk,unk,unk,111,unk,unk,unk,unk,unk,unk,unk,
dde5845a
JK		 54 29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
55 150,158,159,128,136,177,178,176,142,152,173,140,unk,unk,unk,unk
56};
57
58static const struct {
59 __s32 x;
60 __s32 y;
61} hid_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
62
022e8c4d
JS		 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))
dde5845a 67
022e8c4d
JS		 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))
dde5845a 72
a0bf0ea8
DT		 73static bool match_scancode(struct hid_usage *usage,
74 unsigned int cur_idx, unsigned int scancode)
fe7ba31f 75{
a0bf0ea8 76 return (usage->hid & (HID_USAGE_PAGE | HID_USAGE)) == scancode;
fe7ba31f
MR		 77}
78
a0bf0ea8
DT		 79static bool match_keycode(struct hid_usage *usage,
80 unsigned int cur_idx, unsigned int keycode)
fe7ba31f 81{
f5854fad
DT		 82 /*
83 * We should exclude unmapped usages when doing lookup by keycode.
84 */
85 return (usage->type == EV_KEY && usage->code == keycode);
a0bf0ea8 86}
58b93995 87
a0bf0ea8
DT		 88static bool match_index(struct hid_usage *usage,
89 unsigned int cur_idx, unsigned int idx)
90{
91 return cur_idx == idx;
fe7ba31f
MR		 92}
93
a0bf0ea8
DT		 94typedef bool (*hid_usage_cmp_t)(struct hid_usage *usage,
95 unsigned int cur_idx, unsigned int val);
96
fe7ba31f 97static struct hid_usage *hidinput_find_key(struct hid_device *hid,
a0bf0ea8
DT		 98 hid_usage_cmp_t match,
99 unsigned int value,
100 unsigned int *usage_idx)
fe7ba31f 101{
a0bf0ea8 102 unsigned int i, j, k, cur_idx = 0;
fe7ba31f
MR		 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++) {
a0bf0ea8 109 for (j = 0; j < report->field[i]->maxusage; j++) {
fe7ba31f 110 usage = report->field[i]->usage + j;
f5854fad 111 if (usage->type == EV_KEY || usage->type == 0) {
a0bf0ea8
DT		 112 if (match(usage, cur_idx, value)) {
113 if (usage_idx)
114 *usage_idx = cur_idx;
115 return usage;
116 }
117 cur_idx++;
118 }
fe7ba31f
MR		 119 }
120 }
121 }
122 }
123 return NULL;
124}
125
a0bf0ea8
DT		 126static struct hid_usage *hidinput_locate_usage(struct hid_device *hid,
127 const struct input_keymap_entry *ke,
128 unsigned int *index)
129{
130 struct hid_usage *usage;
131 unsigned int scancode;
132
133 if (ke->flags & INPUT_KEYMAP_BY_INDEX)
134 usage = hidinput_find_key(hid, match_index, ke->index, index);
135 else if (input_scancode_to_scalar(ke, &scancode) == 0)
136 usage = hidinput_find_key(hid, match_scancode, scancode, index);
137 else
138 usage = NULL;
139
140 return usage;
141}
142
58b93995 143static int hidinput_getkeycode(struct input_dev *dev,
a0bf0ea8 144 struct input_keymap_entry *ke)
fe7ba31f 145{
f202df60 146 struct hid_device *hid = input_get_drvdata(dev);
fe7ba31f 147 struct hid_usage *usage;
a0bf0ea8 148 unsigned int scancode, index;
77b29662 149
a0bf0ea8 150 usage = hidinput_locate_usage(hid, ke, &index);
fe7ba31f 151 if (usage) {
f5854fad
DT		 152 ke->keycode = usage->type == EV_KEY ?
153 usage->code : KEY_RESERVED;
a0bf0ea8
DT		 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));
fe7ba31f
MR		 158 return 0;
159 }
a0bf0ea8 160
fe7ba31f
MR		 161 return -EINVAL;
162}
163
58b93995 164static int hidinput_setkeycode(struct input_dev *dev,
a0bf0ea8
DT		 165 const struct input_keymap_entry *ke,
166 unsigned int *old_keycode)
fe7ba31f 167{
f202df60 168 struct hid_device *hid = input_get_drvdata(dev);
fe7ba31f 169 struct hid_usage *usage;
77b29662 170
a0bf0ea8 171 usage = hidinput_locate_usage(hid, ke, NULL);
fe7ba31f 172 if (usage) {
f5854fad
DT		 173 *old_keycode = usage->type == EV_KEY ?
174 usage->code : KEY_RESERVED;
a0bf0ea8 175 usage->code = ke->keycode;
77b29662 176
a0bf0ea8 177 clear_bit(*old_keycode, dev->keybit);
fe7ba31f 178 set_bit(usage->code, dev->keybit);
587d1452 179 dbg_hid("Assigned keycode %d to HID usage code %x\n",
a0bf0ea8
DT		 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);
77b29662 188
fe7ba31f
MR		 189 return 0;
190 }
77b29662 191
fe7ba31f
MR		 192 return -EINVAL;
193}
194
ad0e669b 195
4ea6e4ff
NK		 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 *
83ed79c5
DT		 208 * Only exponent 1 length units are processed. Centimeters and inches are
209 * converted to millimeters. Degrees are converted to radians.
4ea6e4ff 210 */
37cf6e6f 211__s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code)
4ea6e4ff
NK		 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 */
b73b2da0
NK		 228 switch (code) {
229 case ABS_X:
230 case ABS_Y:
231 case ABS_Z:
37cf6e6f
BT		 232 case ABS_MT_POSITION_X:
233 case ABS_MT_POSITION_Y:
234 case ABS_MT_TOOL_X:
235 case ABS_MT_TOOL_Y:
236 case ABS_MT_TOUCH_MAJOR:
237 case ABS_MT_TOUCH_MINOR:
ad0e669b 238 if (field->unit == 0x11) { /* If centimeters */
83ed79c5
DT		 239 /* Convert to millimeters */
240 unit_exponent += 1;
ad0e669b 241 } else if (field->unit == 0x13) { /* If inches */
83ed79c5
DT		 242 /* Convert to millimeters */
243 prev = physical_extents;
244 physical_extents *= 254;
245 if (physical_extents < prev)
4ea6e4ff 246 return 0;
83ed79c5 247 unit_exponent -= 1;
ad0e669b 248 } else {
4ea6e4ff
NK		 249 return 0;
250 }
b73b2da0
NK		 251 break;
252
253 case ABS_RX:
254 case ABS_RY:
255 case ABS_RZ:
256 case ABS_TILT_X:
257 case ABS_TILT_Y:
4ea6e4ff
NK		 258 if (field->unit == 0x14) { /* If degrees */
259 /* Convert to radians */
260 prev = logical_extents;
261 logical_extents *= 573;
262 if (logical_extents < prev)
263 return 0;
264 unit_exponent += 1;
265 } else if (field->unit != 0x12) { /* If not radians */
266 return 0;
267 }
b73b2da0
NK		 268 break;
269
270 default:
4ea6e4ff
NK		 271 return 0;
272 }
273
274 /* Apply negative unit exponent */
275 for (; unit_exponent < 0; unit_exponent++) {
276 prev = logical_extents;
277 logical_extents *= 10;
278 if (logical_extents < prev)
279 return 0;
280 }
281 /* Apply positive unit exponent */
282 for (; unit_exponent > 0; unit_exponent--) {
283 prev = physical_extents;
284 physical_extents *= 10;
285 if (physical_extents < prev)
286 return 0;
287 }
288
289 /* Calculate resolution */
ccdd6994 290 return DIV_ROUND_CLOSEST(logical_extents, physical_extents);
4ea6e4ff 291}
37cf6e6f 292EXPORT_SYMBOL_GPL(hidinput_calc_abs_res);
4ea6e4ff 293
4f5ca836
JF		 294#ifdef CONFIG_HID_BATTERY_STRENGTH
295static enum power_supply_property hidinput_battery_props[] = {
296 POWER_SUPPLY_PROP_PRESENT,
297 POWER_SUPPLY_PROP_ONLINE,
298 POWER_SUPPLY_PROP_CAPACITY,
299 POWER_SUPPLY_PROP_MODEL_NAME,
45d9c273
JF		 300 POWER_SUPPLY_PROP_STATUS,
301 POWER_SUPPLY_PROP_SCOPE,
4f5ca836
JF		 302};
303
bbc21cfd 304#define HID_BATTERY_QUIRK_PERCENT (1 << 0) /* always reports percent */
652aa6a9 305#define HID_BATTERY_QUIRK_FEATURE (1 << 1) /* ask for feature report */
bbc21cfd
JF		 306
307static const struct hid_device_id hid_battery_quirks[] = {
4cc85417 308 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
cbd366be
RS		 309 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO),
310 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
311 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
312 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI),
313 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
652aa6a9 314 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
cbd366be 315 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI),
652aa6a9 316 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
da940db4
KR		 317 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
318 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO),
319 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
0c47935c
DN		 320 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
321 USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI),
322 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
bbc21cfd
JF		 323 {}
324};
325
326static unsigned find_battery_quirk(struct hid_device *hdev)
327{
328 unsigned quirks = 0;
329 const struct hid_device_id *match;
330
331 match = hid_match_id(hdev, hid_battery_quirks);
332 if (match != NULL)
333 quirks = match->driver_data;
334
335 return quirks;
336}
337
4f5ca836
JF		 338static int hidinput_get_battery_property(struct power_supply *psy,
339 enum power_supply_property prop,
340 union power_supply_propval *val)
341{
297d716f 342 struct hid_device *dev = power_supply_get_drvdata(psy);
4f5ca836 343 int ret = 0;
6c2794a2 344 __u8 *buf;
4f5ca836
JF		 345
346 switch (prop) {
347 case POWER_SUPPLY_PROP_PRESENT:
348 case POWER_SUPPLY_PROP_ONLINE:
349 val->intval = 1;
350 break;
351
352 case POWER_SUPPLY_PROP_CAPACITY:
6c2794a2
JK		 353
354 buf = kmalloc(2 * sizeof(__u8), GFP_KERNEL);
355 if (!buf) {
356 ret = -ENOMEM;
357 break;
358 }
cafebc05
BT		 359 ret = hid_hw_raw_request(dev, dev->battery_report_id, buf, 2,
360 dev->battery_report_type,
361 HID_REQ_GET_REPORT);
652aa6a9
JF		 362
363 if (ret != 2) {
d0a934b7 364 ret = -ENODATA;
6c2794a2 365 kfree(buf);
c5a92aa3
DN		 366 break;
367 }
d0a934b7 368 ret = 0;
c5a92aa3 369
4f5ca836 370 if (dev->battery_min < dev->battery_max &&
bbc21cfd
JF		 371 buf[1] >= dev->battery_min &&
372 buf[1] <= dev->battery_max)
373 val->intval = (100 * (buf[1] - dev->battery_min)) /
4f5ca836 374 (dev->battery_max - dev->battery_min);
6c2794a2 375 kfree(buf);
4f5ca836
JF		 376 break;
377
378 case POWER_SUPPLY_PROP_MODEL_NAME:
379 val->strval = dev->name;
380 break;
381
c5a92aa3
DN		 382 case POWER_SUPPLY_PROP_STATUS:
383 val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
384 break;
385
45d9c273
JF		 386 case POWER_SUPPLY_PROP_SCOPE:
387 val->intval = POWER_SUPPLY_SCOPE_DEVICE;
388 break;
389
4f5ca836
JF		 390 default:
391 ret = -EINVAL;
392 break;
393 }
394
395 return ret;
396}
397
2f2e3f6d 398static bool hidinput_setup_battery(struct hid_device *dev, unsigned report_type, struct hid_field *field)
4f5ca836 399{
297d716f
KK		 400 struct power_supply_desc *psy_desc = NULL;
401 struct power_supply_config psy_cfg = { .drv_data = dev, };
bbc21cfd 402 unsigned quirks;
2f2e3f6d
JF		 403 s32 min, max;
404
405 if (field->usage->hid != HID_DC_BATTERYSTRENGTH)
406 return false; /* no match */
4f5ca836 407
297d716f 408 if (dev->battery != NULL)
2f2e3f6d 409 goto out; /* already initialized? */
4f5ca836 410
297d716f
KK		 411 psy_desc = kzalloc(sizeof(*psy_desc), GFP_KERNEL);
412 if (psy_desc == NULL)
2f2e3f6d 413 goto out;
4f5ca836 414
297d716f
KK		 415 psy_desc->name = kasprintf(GFP_KERNEL, "hid-%s-battery", dev->uniq);
416 if (psy_desc->name == NULL) {
417 kfree(psy_desc);
418 goto out;
419 }
420
421 psy_desc->type = POWER_SUPPLY_TYPE_BATTERY;
422 psy_desc->properties = hidinput_battery_props;
423 psy_desc->num_properties = ARRAY_SIZE(hidinput_battery_props);
424 psy_desc->use_for_apm = 0;
425 psy_desc->get_property = hidinput_get_battery_property;
4f5ca836 426
bbc21cfd
JF		 427 quirks = find_battery_quirk(dev);
428
652aa6a9
JF		 429 hid_dbg(dev, "device %x:%x:%x %d quirks %d\n",
430 dev->bus, dev->vendor, dev->product, dev->version, quirks);
431
2f2e3f6d
JF		 432 min = field->logical_minimum;
433 max = field->logical_maximum;
434
bbc21cfd
JF		 435 if (quirks & HID_BATTERY_QUIRK_PERCENT) {
436 min = 0;
437 max = 100;
438 }
439
652aa6a9
JF		 440 if (quirks & HID_BATTERY_QUIRK_FEATURE)
441 report_type = HID_FEATURE_REPORT;
442
4f5ca836
JF		 443 dev->battery_min = min;
444 dev->battery_max = max;
fb8ac91b 445 dev->battery_report_type = report_type;
2f2e3f6d 446 dev->battery_report_id = field->report->id;
4f5ca836 447
297d716f
KK		 448 dev->battery = power_supply_register(&dev->dev, psy_desc, &psy_cfg);
449 if (IS_ERR(dev->battery)) {
450 hid_warn(dev, "can't register power supply: %ld\n",
451 PTR_ERR(dev->battery));
452 kfree(psy_desc->name);
453 kfree(psy_desc);
454 dev->battery = NULL;
fbea947c
KK		 455 } else {
456 power_supply_powers(dev->battery, &dev->dev);
4f5ca836 457 }
2f2e3f6d
JF		 458
459out:
460 return true;
4f5ca836
JF		 461}
462
463static void hidinput_cleanup_battery(struct hid_device *dev)
464{
297d716f 465 if (!dev->battery)
4f5ca836
JF		 466 return;
467
297d716f
KK		 468 power_supply_unregister(dev->battery);
469 kfree(dev->battery->desc->name);
470 kfree(dev->battery->desc);
471 dev->battery = NULL;
4f5ca836
JF		 472}
473#else /* !CONFIG_HID_BATTERY_STRENGTH */
2f2e3f6d
JF		 474static bool hidinput_setup_battery(struct hid_device *dev, unsigned report_type,
475 struct hid_field *field)
4f5ca836 476{
2f2e3f6d 477 return false;
4f5ca836
JF		 478}
479
480static void hidinput_cleanup_battery(struct hid_device *dev)
481{
482}
483#endif /* CONFIG_HID_BATTERY_STRENGTH */
484
dde5845a
JK		 485static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
486 struct hid_usage *usage)
487{
488 struct input_dev *input = hidinput->input;
e0712985 489 struct hid_device *device = input_get_drvdata(input);
3715ade9 490 int max = 0, code;
dde5845a
JK		 491 unsigned long *bit = NULL;
492
493 field->hidinput = hidinput;
494
dde5845a
JK		 495 if (field->flags & HID_MAIN_ITEM_CONSTANT)
496 goto ignore;
497
cc6b54aa
BT		 498 /* Ignore if report count is out of bounds. */
499 if (field->report_count < 1)
500 goto ignore;
501
82eb1219
JK		 502 /* only LED usages are supported in output fields */
503 if (field->report_type == HID_OUTPUT_REPORT &&
504 (usage->hid & HID_USAGE_PAGE) != HID_UP_LED) {
82eb1219
JK		 505 goto ignore;
506 }
507
c500c971
JS		 508 if (device->driver->input_mapping) {
509 int ret = device->driver->input_mapping(device, hidinput, field,
510 usage, &bit, &max);
511 if (ret > 0)
512 goto mapped;
513 if (ret < 0)
514 goto ignore;
515 }
516
dde5845a 517 switch (usage->hid & HID_USAGE_PAGE) {
880d29f1
JS		 518 case HID_UP_UNDEFINED:
519 goto ignore;
dde5845a 520
880d29f1
JS		 521 case HID_UP_KEYBOARD:
522 set_bit(EV_REP, input->evbit);
dde5845a 523
880d29f1
JS		 524 if ((usage->hid & HID_USAGE) < 256) {
525 if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
526 map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
527 } else
528 map_key(KEY_UNKNOWN);
dde5845a 529
880d29f1 530 break;
dde5845a 531
880d29f1 532 case HID_UP_BUTTON:
7f978b9b 533 code = ((usage->hid - 1) & HID_USAGE);
dde5845a 534
880d29f1
JS		 535 switch (field->application) {
536 case HID_GD_MOUSE:
1874542d 537 case HID_GD_POINTER: code += BTN_MOUSE; break;
cf2f765f 538 case HID_GD_JOYSTICK:
fc99f22c
DM		 539 if (code <= 0xf)
540 code += BTN_JOYSTICK;
541 else
f8e86d05
IR		 542 code += BTN_TRIGGER_HAPPY - 0x10;
543 break;
544 case HID_GD_GAMEPAD:
545 if (code <= 0xf)
546 code += BTN_GAMEPAD;
547 else
548 code += BTN_TRIGGER_HAPPY - 0x10;
fc99f22c 549 break;
880d29f1
JS		 550 default:
551 switch (field->physical) {
552 case HID_GD_MOUSE:
1874542d
FF		 553 case HID_GD_POINTER: code += BTN_MOUSE; break;
554 case HID_GD_JOYSTICK: code += BTN_JOYSTICK; break;
555 case HID_GD_GAMEPAD: code += BTN_GAMEPAD; break;
556 default: code += BTN_MISC;
dde5845a 557 }
880d29f1 558 }
dde5845a 559
880d29f1
JS		 560 map_key(code);
561 break;
562
563 case HID_UP_SIMULATION:
564 switch (usage->hid & 0xffff) {
565 case 0xba: map_abs(ABS_RUDDER); break;
566 case 0xbb: map_abs(ABS_THROTTLE); break;
567 case 0xc4: map_abs(ABS_GAS); break;
568 case 0xc5: map_abs(ABS_BRAKE); break;
569 case 0xc8: map_abs(ABS_WHEEL); break;
570 default: goto ignore;
571 }
572 break;
573
574 case HID_UP_GENDESK:
575 if ((usage->hid & 0xf0) == 0x80) { /* SystemControl */
576 switch (usage->hid & 0xf) {
577 case 0x1: map_key_clear(KEY_POWER); break;
578 case 0x2: map_key_clear(KEY_SLEEP); break;
579 case 0x3: map_key_clear(KEY_WAKEUP); break;
437f3b19
JW		 580 case 0x4: map_key_clear(KEY_CONTEXT_MENU); break;
581 case 0x5: map_key_clear(KEY_MENU); break;
582 case 0x6: map_key_clear(KEY_PROG1); break;
583 case 0x7: map_key_clear(KEY_HELP); break;
584 case 0x8: map_key_clear(KEY_EXIT); break;
585 case 0x9: map_key_clear(KEY_SELECT); break;
586 case 0xa: map_key_clear(KEY_RIGHT); break;
587 case 0xb: map_key_clear(KEY_LEFT); break;
588 case 0xc: map_key_clear(KEY_UP); break;
589 case 0xd: map_key_clear(KEY_DOWN); break;
590 case 0xe: map_key_clear(KEY_POWER2); break;
591 case 0xf: map_key_clear(KEY_RESTART); break;
880d29f1 592 default: goto unknown;
dde5845a
JK		 593 }
594 break;
880d29f1 595 }
dde5845a 596
880d29f1 597 if ((usage->hid & 0xf0) == 0x90) { /* D-pad */
dde5845a 598 switch (usage->hid) {
880d29f1
JS		 599 case HID_GD_UP: usage->hat_dir = 1; break;
600 case HID_GD_DOWN: usage->hat_dir = 5; break;
601 case HID_GD_RIGHT: usage->hat_dir = 3; break;
602 case HID_GD_LEFT: usage->hat_dir = 7; break;
603 default: goto unknown;
dde5845a 604 }
880d29f1
JS		 605 if (field->dpad) {
606 map_abs(field->dpad);
607 goto ignore;
d4ae650a 608 }
880d29f1 609 map_abs(ABS_HAT0X);
dde5845a 610 break;
880d29f1 611 }
dde5845a 612
880d29f1
JS		 613 switch (usage->hid) {
614 /* These usage IDs map directly to the usage codes. */
615 case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
616 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
79346d62
BT		 617 if (field->flags & HID_MAIN_ITEM_RELATIVE)
618 map_rel(usage->hid & 0xf);
619 else
620 map_abs_clear(usage->hid & 0xf);
621 break;
622
880d29f1
JS		 623 case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL:
624 if (field->flags & HID_MAIN_ITEM_RELATIVE)
625 map_rel(usage->hid & 0xf);
626 else
627 map_abs(usage->hid & 0xf);
628 break;
dde5845a 629
880d29f1
JS		 630 case HID_GD_HATSWITCH:
631 usage->hat_min = field->logical_minimum;
632 usage->hat_max = field->logical_maximum;
633 map_abs(ABS_HAT0X);
634 break;
dde5845a 635
880d29f1
JS		 636 case HID_GD_START: map_key_clear(BTN_START); break;
637 case HID_GD_SELECT: map_key_clear(BTN_SELECT); break;
dde5845a 638
880d29f1
JS		 639 default: goto unknown;
640 }
dde5845a 641
880d29f1
JS		 642 break;
643
644 case HID_UP_LED:
645 switch (usage->hid & 0xffff) { /* HID-Value: */
646 case 0x01: map_led (LED_NUML); break; /* "Num Lock" */
647 case 0x02: map_led (LED_CAPSL); break; /* "Caps Lock" */
648 case 0x03: map_led (LED_SCROLLL); break; /* "Scroll Lock" */
649 case 0x04: map_led (LED_COMPOSE); break; /* "Compose" */
650 case 0x05: map_led (LED_KANA); break; /* "Kana" */
651 case 0x27: map_led (LED_SLEEP); break; /* "Stand-By" */
652 case 0x4c: map_led (LED_SUSPEND); break; /* "System Suspend" */
653 case 0x09: map_led (LED_MUTE); break; /* "Mute" */
654 case 0x4b: map_led (LED_MISC); break; /* "Generic Indicator" */
655 case 0x19: map_led (LED_MAIL); break; /* "Message Waiting" */
656 case 0x4d: map_led (LED_CHARGING); break; /* "External Power Connected" */
657
658 default: goto ignore;
659 }
660 break;
661
662 case HID_UP_DIGITIZER:
663 switch (usage->hid & 0xff) {
8c8b01c3
FB		 664 case 0x00: /* Undefined */
665 goto ignore;
666
880d29f1
JS		 667 case 0x30: /* TipPressure */
668 if (!test_bit(BTN_TOUCH, input->keybit)) {
669 device->quirks |= HID_QUIRK_NOTOUCH;
670 set_bit(EV_KEY, input->evbit);
671 set_bit(BTN_TOUCH, input->keybit);
dde5845a 672 }
880d29f1 673 map_abs_clear(ABS_PRESSURE);
dde5845a
JK		 674 break;
675
880d29f1
JS		 676 case 0x32: /* InRange */
677 switch (field->physical & 0xff) {
678 case 0x21: map_key(BTN_TOOL_MOUSE); break;
679 case 0x22: map_key(BTN_TOOL_FINGER); break;
680 default: map_key(BTN_TOOL_PEN); break;
dde5845a
JK		 681 }
682 break;
683
880d29f1
JS		 684 case 0x3c: /* Invert */
685 map_key_clear(BTN_TOOL_RUBBER);
dde5845a
JK		 686 break;
687
b73b2da0
NK		 688 case 0x3d: /* X Tilt */
689 map_abs_clear(ABS_TILT_X);
690 break;
691
692 case 0x3e: /* Y Tilt */
693 map_abs_clear(ABS_TILT_Y);
694 break;
695
880d29f1
JS		 696 case 0x33: /* Touch */
697 case 0x42: /* TipSwitch */
698 case 0x43: /* TipSwitch2 */
699 device->quirks &= ~HID_QUIRK_NOTOUCH;
700 map_key_clear(BTN_TOUCH);
701 break;
dde5845a 702
880d29f1
JS		 703 case 0x44: /* BarrelSwitch */
704 map_key_clear(BTN_STYLUS);
705 break;
dde5845a 706
50b63697 707 case 0x46: /* TabletPick */
368c9664 708 case 0x5a: /* SecondaryBarrelSwitch */
50b63697
NK		 709 map_key_clear(BTN_STYLUS2);
710 break;
711
368c9664 712 case 0x5b: /* TransducerSerialNumber */
5989a55a
JG		 713 usage->type = EV_MSC;
714 usage->code = MSC_SERIAL;
715 bit = input->mscbit;
716 max = MSC_MAX;
368c9664
PC		 717 break;
718
880d29f1
JS		 719 default: goto unknown;
720 }
721 break;
722
f3dddf24
DT		 723 case HID_UP_TELEPHONY:
724 switch (usage->hid & HID_USAGE) {
725 case 0x2f: map_key_clear(KEY_MICMUTE); break;
726 case 0xb0: map_key_clear(KEY_NUMERIC_0); break;
727 case 0xb1: map_key_clear(KEY_NUMERIC_1); break;
728 case 0xb2: map_key_clear(KEY_NUMERIC_2); break;
729 case 0xb3: map_key_clear(KEY_NUMERIC_3); break;
730 case 0xb4: map_key_clear(KEY_NUMERIC_4); break;
731 case 0xb5: map_key_clear(KEY_NUMERIC_5); break;
732 case 0xb6: map_key_clear(KEY_NUMERIC_6); break;
733 case 0xb7: map_key_clear(KEY_NUMERIC_7); break;
734 case 0xb8: map_key_clear(KEY_NUMERIC_8); break;
735 case 0xb9: map_key_clear(KEY_NUMERIC_9); break;
736 case 0xba: map_key_clear(KEY_NUMERIC_STAR); break;
737 case 0xbb: map_key_clear(KEY_NUMERIC_POUND); break;
738 case 0xbc: map_key_clear(KEY_NUMERIC_A); break;
739 case 0xbd: map_key_clear(KEY_NUMERIC_B); break;
740 case 0xbe: map_key_clear(KEY_NUMERIC_C); break;
741 case 0xbf: map_key_clear(KEY_NUMERIC_D); break;
742 default: goto ignore;
743 }
744 break;
745
437f3b19 746 case HID_UP_CONSUMER: /* USB HUT v1.12, pages 75-84 */
880d29f1
JS		 747 switch (usage->hid & HID_USAGE) {
748 case 0x000: goto ignore;
437f3b19
JW		 749 case 0x030: map_key_clear(KEY_POWER); break;
750 case 0x031: map_key_clear(KEY_RESTART); break;
751 case 0x032: map_key_clear(KEY_SLEEP); break;
880d29f1 752 case 0x034: map_key_clear(KEY_SLEEP); break;
437f3b19 753 case 0x035: map_key_clear(KEY_KBDILLUMTOGGLE); break;
880d29f1
JS		 754 case 0x036: map_key_clear(BTN_MISC); break;
755
437f3b19
JW		 756 case 0x040: map_key_clear(KEY_MENU); break; /* Menu */
757 case 0x041: map_key_clear(KEY_SELECT); break; /* Menu Pick */
758 case 0x042: map_key_clear(KEY_UP); break; /* Menu Up */
759 case 0x043: map_key_clear(KEY_DOWN); break; /* Menu Down */
760 case 0x044: map_key_clear(KEY_LEFT); break; /* Menu Left */
761 case 0x045: map_key_clear(KEY_RIGHT); break; /* Menu Right */
762 case 0x046: map_key_clear(KEY_ESC); break; /* Menu Escape */
763 case 0x047: map_key_clear(KEY_KPPLUS); break; /* Menu Value Increase */
764 case 0x048: map_key_clear(KEY_KPMINUS); break; /* Menu Value Decrease */
765
766 case 0x060: map_key_clear(KEY_INFO); break; /* Data On Screen */
767 case 0x061: map_key_clear(KEY_SUBTITLE); break; /* Closed Caption */
768 case 0x063: map_key_clear(KEY_VCR); break; /* VCR/TV */
769 case 0x065: map_key_clear(KEY_CAMERA); break; /* Snapshot */
770 case 0x069: map_key_clear(KEY_RED); break;
771 case 0x06a: map_key_clear(KEY_GREEN); break;
772 case 0x06b: map_key_clear(KEY_BLUE); break;
773 case 0x06c: map_key_clear(KEY_YELLOW); break;
774 case 0x06d: map_key_clear(KEY_ZOOM); break;
775
f362e690
OG		 776 case 0x06f: map_key_clear(KEY_BRIGHTNESSUP); break;
777 case 0x070: map_key_clear(KEY_BRIGHTNESSDOWN); break;
778 case 0x072: map_key_clear(KEY_BRIGHTNESS_TOGGLE); break;
779 case 0x073: map_key_clear(KEY_BRIGHTNESS_MIN); break;
780 case 0x074: map_key_clear(KEY_BRIGHTNESS_MAX); break;
781 case 0x075: map_key_clear(KEY_BRIGHTNESS_AUTO); break;
782
437f3b19 783 case 0x082: map_key_clear(KEY_VIDEO_NEXT); break;
880d29f1 784 case 0x083: map_key_clear(KEY_LAST); break;
437f3b19 785 case 0x084: map_key_clear(KEY_ENTER); break;
880d29f1
JS		 786 case 0x088: map_key_clear(KEY_PC); break;
787 case 0x089: map_key_clear(KEY_TV); break;
788 case 0x08a: map_key_clear(KEY_WWW); break;
789 case 0x08b: map_key_clear(KEY_DVD); break;
790 case 0x08c: map_key_clear(KEY_PHONE); break;
791 case 0x08d: map_key_clear(KEY_PROGRAM); break;
792 case 0x08e: map_key_clear(KEY_VIDEOPHONE); break;
793 case 0x08f: map_key_clear(KEY_GAMES); break;
794 case 0x090: map_key_clear(KEY_MEMO); break;
795 case 0x091: map_key_clear(KEY_CD); break;
796 case 0x092: map_key_clear(KEY_VCR); break;
797 case 0x093: map_key_clear(KEY_TUNER); break;
798 case 0x094: map_key_clear(KEY_EXIT); break;
799 case 0x095: map_key_clear(KEY_HELP); break;
800 case 0x096: map_key_clear(KEY_TAPE); break;
801 case 0x097: map_key_clear(KEY_TV2); break;
802 case 0x098: map_key_clear(KEY_SAT); break;
803 case 0x09a: map_key_clear(KEY_PVR); break;
804
805 case 0x09c: map_key_clear(KEY_CHANNELUP); break;
806 case 0x09d: map_key_clear(KEY_CHANNELDOWN); break;
807 case 0x0a0: map_key_clear(KEY_VCR2); break;
808
809 case 0x0b0: map_key_clear(KEY_PLAY); break;
810 case 0x0b1: map_key_clear(KEY_PAUSE); break;
811 case 0x0b2: map_key_clear(KEY_RECORD); break;
812 case 0x0b3: map_key_clear(KEY_FASTFORWARD); break;
813 case 0x0b4: map_key_clear(KEY_REWIND); break;
814 case 0x0b5: map_key_clear(KEY_NEXTSONG); break;
815 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG); break;
816 case 0x0b7: map_key_clear(KEY_STOPCD); break;
817 case 0x0b8: map_key_clear(KEY_EJECTCD); break;
818 case 0x0bc: map_key_clear(KEY_MEDIA_REPEAT); break;
437f3b19
JW		 819 case 0x0b9: map_key_clear(KEY_SHUFFLE); break;
820 case 0x0bf: map_key_clear(KEY_SLOW); break;
880d29f1
JS		 821
822 case 0x0cd: map_key_clear(KEY_PLAYPAUSE); break;
f362e690 823 case 0x0cf: map_key_clear(KEY_VOICECOMMAND); break;
880d29f1
JS		 824 case 0x0e0: map_abs_clear(ABS_VOLUME); break;
825 case 0x0e2: map_key_clear(KEY_MUTE); break;
826 case 0x0e5: map_key_clear(KEY_BASSBOOST); break;
827 case 0x0e9: map_key_clear(KEY_VOLUMEUP); break;
828 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN); break;
437f3b19 829 case 0x0f5: map_key_clear(KEY_SLOW); break;
880d29f1 830
f362e690 831 case 0x181: map_key_clear(KEY_BUTTONCONFIG); break;
880d29f1
JS		 832 case 0x182: map_key_clear(KEY_BOOKMARKS); break;
833 case 0x183: map_key_clear(KEY_CONFIG); break;
834 case 0x184: map_key_clear(KEY_WORDPROCESSOR); break;
835 case 0x185: map_key_clear(KEY_EDITOR); break;
836 case 0x186: map_key_clear(KEY_SPREADSHEET); break;
837 case 0x187: map_key_clear(KEY_GRAPHICSEDITOR); break;
838 case 0x188: map_key_clear(KEY_PRESENTATION); break;
839 case 0x189: map_key_clear(KEY_DATABASE); break;
840 case 0x18a: map_key_clear(KEY_MAIL); break;
841 case 0x18b: map_key_clear(KEY_NEWS); break;
842 case 0x18c: map_key_clear(KEY_VOICEMAIL); break;
843 case 0x18d: map_key_clear(KEY_ADDRESSBOOK); break;
844 case 0x18e: map_key_clear(KEY_CALENDAR); break;
f362e690
OG		 845 case 0x18f: map_key_clear(KEY_TASKMANAGER); break;
846 case 0x190: map_key_clear(KEY_JOURNAL); break;
880d29f1
JS		 847 case 0x191: map_key_clear(KEY_FINANCE); break;
848 case 0x192: map_key_clear(KEY_CALC); break;
437f3b19 849 case 0x193: map_key_clear(KEY_PLAYER); break;
880d29f1
JS		 850 case 0x194: map_key_clear(KEY_FILE); break;
851 case 0x196: map_key_clear(KEY_WWW); break;
0690535d 852 case 0x199: map_key_clear(KEY_CHAT); break;
880d29f1
JS		 853 case 0x19c: map_key_clear(KEY_LOGOFF); break;
854 case 0x19e: map_key_clear(KEY_COFFEE); break;
f362e690
OG		 855 case 0x19f: map_key_clear(KEY_CONTROLPANEL); break;
856 case 0x1a2: map_key_clear(KEY_APPSELECT); break;
5820e4d4
HG		 857 case 0x1a3: map_key_clear(KEY_NEXT); break;
858 case 0x1a4: map_key_clear(KEY_PREVIOUS); break;
880d29f1
JS		 859 case 0x1a6: map_key_clear(KEY_HELP); break;
860 case 0x1a7: map_key_clear(KEY_DOCUMENTS); break;
861 case 0x1ab: map_key_clear(KEY_SPELLCHECK); break;
437f3b19 862 case 0x1ae: map_key_clear(KEY_KEYBOARD); break;
f362e690 863 case 0x1b1: map_key_clear(KEY_SCREENSAVER); break;
5820e4d4 864 case 0x1b4: map_key_clear(KEY_FILE); break;
437f3b19
JW		 865 case 0x1b6: map_key_clear(KEY_IMAGES); break;
866 case 0x1b7: map_key_clear(KEY_AUDIO); break;
867 case 0x1b8: map_key_clear(KEY_VIDEO); break;
880d29f1
JS		 868 case 0x1bc: map_key_clear(KEY_MESSENGER); break;
869 case 0x1bd: map_key_clear(KEY_INFO); break;
870 case 0x201: map_key_clear(KEY_NEW); break;
871 case 0x202: map_key_clear(KEY_OPEN); break;
872 case 0x203: map_key_clear(KEY_CLOSE); break;
873 case 0x204: map_key_clear(KEY_EXIT); break;
874 case 0x207: map_key_clear(KEY_SAVE); break;
875 case 0x208: map_key_clear(KEY_PRINT); break;
876 case 0x209: map_key_clear(KEY_PROPS); break;
877 case 0x21a: map_key_clear(KEY_UNDO); break;
878 case 0x21b: map_key_clear(KEY_COPY); break;
879 case 0x21c: map_key_clear(KEY_CUT); break;
880 case 0x21d: map_key_clear(KEY_PASTE); break;
881 case 0x21f: map_key_clear(KEY_FIND); break;
882 case 0x221: map_key_clear(KEY_SEARCH); break;
883 case 0x222: map_key_clear(KEY_GOTO); break;
884 case 0x223: map_key_clear(KEY_HOMEPAGE); break;
885 case 0x224: map_key_clear(KEY_BACK); break;
886 case 0x225: map_key_clear(KEY_FORWARD); break;
887 case 0x226: map_key_clear(KEY_STOP); break;
888 case 0x227: map_key_clear(KEY_REFRESH); break;
889 case 0x22a: map_key_clear(KEY_BOOKMARKS); break;
890 case 0x22d: map_key_clear(KEY_ZOOMIN); break;
891 case 0x22e: map_key_clear(KEY_ZOOMOUT); break;
892 case 0x22f: map_key_clear(KEY_ZOOMRESET); break;
893 case 0x233: map_key_clear(KEY_SCROLLUP); break;
894 case 0x234: map_key_clear(KEY_SCROLLDOWN); break;
895 case 0x238: map_rel(REL_HWHEEL); break;
437f3b19 896 case 0x23d: map_key_clear(KEY_EDIT); break;
880d29f1 897 case 0x25f: map_key_clear(KEY_CANCEL); break;
437f3b19
JW		 898 case 0x269: map_key_clear(KEY_INSERT); break;
899 case 0x26a: map_key_clear(KEY_DELETE); break;
880d29f1
JS		 900 case 0x279: map_key_clear(KEY_REDO); break;
901
902 case 0x289: map_key_clear(KEY_REPLY); break;
903 case 0x28b: map_key_clear(KEY_FORWARDMAIL); break;
904 case 0x28c: map_key_clear(KEY_SEND); break;
905
f974008f
OG		 906 case 0x2c7: map_key_clear(KEY_KBDINPUTASSIST_PREV); break;
907 case 0x2c8: map_key_clear(KEY_KBDINPUTASSIST_NEXT); break;
908 case 0x2c9: map_key_clear(KEY_KBDINPUTASSIST_PREVGROUP); break;
909 case 0x2ca: map_key_clear(KEY_KBDINPUTASSIST_NEXTGROUP); break;
910 case 0x2cb: map_key_clear(KEY_KBDINPUTASSIST_ACCEPT); break;
911 case 0x2cc: map_key_clear(KEY_KBDINPUTASSIST_CANCEL); break;
912
afdb5cce 913 default: map_key_clear(KEY_UNKNOWN);
880d29f1
JS		 914 }
915 break;
916
4f5ca836 917 case HID_UP_GENDEVCTRLS:
2f2e3f6d 918 if (hidinput_setup_battery(device, HID_INPUT_REPORT, field))
4f5ca836 919 goto ignore;
2f2e3f6d 920 else
4f5ca836
JF		 921 goto unknown;
922 break;
923
880d29f1
JS		 924 case HID_UP_HPVENDOR: /* Reported on a Dutch layout HP5308 */
925 set_bit(EV_REP, input->evbit);
926 switch (usage->hid & HID_USAGE) {
927 case 0x021: map_key_clear(KEY_PRINT); break;
928 case 0x070: map_key_clear(KEY_HP); break;
929 case 0x071: map_key_clear(KEY_CAMERA); break;
930 case 0x072: map_key_clear(KEY_SOUND); break;
931 case 0x073: map_key_clear(KEY_QUESTION); break;
932 case 0x080: map_key_clear(KEY_EMAIL); break;
933 case 0x081: map_key_clear(KEY_CHAT); break;
934 case 0x082: map_key_clear(KEY_SEARCH); break;
935 case 0x083: map_key_clear(KEY_CONNECT); break;
936 case 0x084: map_key_clear(KEY_FINANCE); break;
937 case 0x085: map_key_clear(KEY_SPORT); break;
938 case 0x086: map_key_clear(KEY_SHOP); break;
929578ab
KYL		 939 default: goto ignore;
940 }
941 break;
942
943 case HID_UP_HPVENDOR2:
944 set_bit(EV_REP, input->evbit);
945 switch (usage->hid & HID_USAGE) {
946 case 0x003: map_key_clear(KEY_BRIGHTNESSDOWN); break;
947 case 0x004: map_key_clear(KEY_BRIGHTNESSUP); break;
880d29f1
JS		 948 default: goto ignore;
949 }
950 break;
dde5845a 951
880d29f1
JS		 952 case HID_UP_MSVENDOR:
953 goto ignore;
dde5845a 954
880d29f1
JS		 955 case HID_UP_CUSTOM: /* Reported on Logitech and Apple USB keyboards */
956 set_bit(EV_REP, input->evbit);
957 goto ignore;
dde5845a 958
880d29f1
JS		 959 case HID_UP_LOGIVENDOR:
960 goto ignore;
fc99f22c 961
880d29f1
JS		 962 case HID_UP_PID:
963 switch (usage->hid & HID_USAGE) {
964 case 0xa4: map_key_clear(BTN_DEAD); break;
965 default: goto ignore;
966 }
967 break;
dde5845a 968
880d29f1
JS		 969 default:
970 unknown:
971 if (field->report_size == 1) {
972 if (field->report->type == HID_OUTPUT_REPORT) {
973 map_led(LED_MISC);
dde5845a
JK		 974 break;
975 }
880d29f1 976 map_key(BTN_MISC);
dde5845a 977 break;
880d29f1
JS		 978 }
979 if (field->flags & HID_MAIN_ITEM_RELATIVE) {
980 map_rel(REL_MISC);
981 break;
982 }
983 map_abs(ABS_MISC);
984 break;
dde5845a
JK		 985 }
986
10bd065f 987mapped:
c500c971
JS		 988 if (device->driver->input_mapped && device->driver->input_mapped(device,
989 hidinput, field, usage, &bit, &max) < 0)
990 goto ignore;
991
dde5845a
JK		 992 set_bit(usage->type, input->evbit);
993
994 while (usage->code <= max && test_and_set_bit(usage->code, bit))
995 usage->code = find_next_zero_bit(bit, max + 1, usage->code);
996
997 if (usage->code > max)
998 goto ignore;
999
1000
1001 if (usage->type == EV_ABS) {
1002
1003 int a = field->logical_minimum;
1004 int b = field->logical_maximum;
1005
1006 if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
1007 a = field->logical_minimum = 0;
1008 b = field->logical_maximum = 255;
1009 }
1010
1011 if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
1012 input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
1013 else input_set_abs_params(input, usage->code, a, b, 0, 0);
1014
4ea6e4ff
NK		 1015 input_abs_set_res(input, usage->code,
1016 hidinput_calc_abs_res(field, usage->code));
1017
6967b4d9
HR		 1018 /* use a larger default input buffer for MT devices */
1019 if (usage->code == ABS_MT_POSITION_X && input->hint_events_per_packet == 0)
1020 input_set_events_per_packet(input, 60);
dde5845a
JK		 1021 }
1022
1023 if (usage->type == EV_ABS &&
1024 (usage->hat_min < usage->hat_max || usage->hat_dir)) {
1025 int i;
1026 for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
1027 input_set_abs_params(input, i, -1, 1, 0, 0);
1028 set_bit(i, input->absbit);
1029 }
1030 if (usage->hat_dir && !field->dpad)
1031 field->dpad = usage->code;
1032 }
1033
2c1d8aea
JK		 1034 /* for those devices which produce Consumer volume usage as relative,
1035 * we emulate pressing volumeup/volumedown appropriate number of times
1036 * in hidinput_hid_event()
1037 */
1038 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
1039 (usage->code == ABS_VOLUME)) {
1040 set_bit(KEY_VOLUMEUP, input->keybit);
1041 set_bit(KEY_VOLUMEDOWN, input->keybit);
1042 }
1043
c01d50d1
JK		 1044 if (usage->type == EV_KEY) {
1045 set_bit(EV_MSC, input->evbit);
1046 set_bit(MSC_SCAN, input->mscbit);
1047 }
1048
dde5845a 1049ignore:
dde5845a 1050 return;
a635f9dd 1051
dde5845a
JK		 1052}
1053
1054void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
1055{
1056 struct input_dev *input;
b4482a4b 1057 unsigned *quirks = &hid->quirks;
dde5845a
JK		 1058
1059 if (!field->hidinput)
1060 return;
1061
1062 input = field->hidinput->input;
1063
1064 if (!usage->type)
1065 return;
1066
dde5845a
JK		 1067 if (usage->hat_min < usage->hat_max || usage->hat_dir) {
1068 int hat_dir = usage->hat_dir;
1069 if (!hat_dir)
1070 hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
1071 if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
1072 input_event(input, usage->type, usage->code , hid_hat_to_axis[hat_dir].x);
fc99f22c
DM		 1073 input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
1074 return;
1075 }
dde5845a
JK		 1076
1077 if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */
1078 *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
1079 return;
1080 }
1081
1082 if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */
1083 if (value) {
1084 input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
1085 return;
1086 }
1087 input_event(input, usage->type, usage->code, 0);
1088 input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
1089 return;
1090 }
1091
1092 if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */
1093 int a = field->logical_minimum;
1094 int b = field->logical_maximum;
1095 input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3));
1096 }
1097
1098 if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
58037eb9 1099 dbg_hid("Maximum Effects - %d\n",value);
dde5845a
JK		 1100 return;
1101 }
1102
1103 if (usage->hid == (HID_UP_PID | 0x7fUL)) {
58037eb9 1104 dbg_hid("PID Pool Report\n");
dde5845a
JK		 1105 return;
1106 }
1107
1108 if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
1109 return;
1110
2c1d8aea
JK		 1111 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
1112 (usage->code == ABS_VOLUME)) {
1113 int count = abs(value);
1114 int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN;
1115 int i;
1116
1117 for (i = 0; i < count; i++) {
1118 input_event(input, EV_KEY, direction, 1);
1119 input_sync(input);
1120 input_event(input, EV_KEY, direction, 0);
1121 input_sync(input);
1122 }
1123 return;
1124 }
1125
883e0e36
NK		 1126 /*
1127 * Ignore out-of-range values as per HID specification,
a688393b
JK		 1128 * section 5.10 and 6.2.25.
1129 *
1130 * The logical_minimum < logical_maximum check is done so that we
1131 * don't unintentionally discard values sent by devices which
1132 * don't specify logical min and max.
883e0e36
NK		 1133 */
1134 if ((field->flags & HID_MAIN_ITEM_VARIABLE) &&
6f1891d0 1135 (field->logical_minimum < field->logical_maximum) &&
883e0e36
NK		 1136 (value < field->logical_minimum ||
1137 value > field->logical_maximum)) {
6da70669
JK		 1138 dbg_hid("Ignoring out-of-range value %x\n", value);
1139 return;
1140 }
1141
6ce901eb
DH		 1142 /*
1143 * Ignore reports for absolute data if the data didn't change. This is
1144 * not only an optimization but also fixes 'dead' key reports. Some
1145 * RollOver implementations for localized keys (like BACKSLASH/PIPE; HID
1146 * 0x31 and 0x32) report multiple keys, even though a localized keyboard
1147 * can only have one of them physically available. The 'dead' keys
1148 * report constant 0. As all map to the same keycode, they'd confuse
1149 * the input layer. If we filter the 'dead' keys on the HID level, we
1150 * skip the keycode translation and only forward real events.
1151 */
1152 if (!(field->flags & (HID_MAIN_ITEM_RELATIVE |
1153 HID_MAIN_ITEM_BUFFERED_BYTE)) &&
8e7b3410 1154 (field->flags & HID_MAIN_ITEM_VARIABLE) &&
6ce901eb
DH		 1155 usage->usage_index < field->maxusage &&
1156 value == field->value[usage->usage_index])
1157 return;
1158
c01d50d1 1159 /* report the usage code as scancode if the key status has changed */
2c54c86a 1160 if (usage->type == EV_KEY && (!test_bit(usage->code, input->key)) == value)
c01d50d1 1161 input_event(input, EV_MSC, MSC_SCAN, usage->hid);
1fe8736d 1162
dde5845a
JK		 1163 input_event(input, usage->type, usage->code, value);
1164
1165 if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY))
1166 input_event(input, usage->type, usage->code, 0);
1167}
1168
1169void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
1170{
1171 struct hid_input *hidinput;
1172
24750f3e
HR		 1173 if (hid->quirks & HID_QUIRK_NO_INPUT_SYNC)
1174 return;
1175
dde5845a
JK		 1176 list_for_each_entry(hidinput, &hid->inputs, list)
1177 input_sync(hidinput->input);
1178}
229695e5 1179EXPORT_SYMBOL_GPL(hidinput_report_event);
dde5845a 1180
229695e5 1181int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
dde5845a
JK		 1182{
1183 struct hid_report *report;
1184 int i, j;
1185
1186 list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
1187 for (i = 0; i < report->maxfield; i++) {
1188 *field = report->field[i];
1189 for (j = 0; j < (*field)->maxusage; j++)
1190 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
1191 return j;
1192 }
1193 }
1194 return -1;
1195}
229695e5 1196EXPORT_SYMBOL_GPL(hidinput_find_field);
dde5845a 1197
4371ea82
DK		 1198struct hid_field *hidinput_get_led_field(struct hid_device *hid)
1199{
1200 struct hid_report *report;
1201 struct hid_field *field;
1202 int i, j;
1203
1204 list_for_each_entry(report,
1205 &hid->report_enum[HID_OUTPUT_REPORT].report_list,
1206 list) {
1207 for (i = 0; i < report->maxfield; i++) {
1208 field = report->field[i];
1209 for (j = 0; j < field->maxusage; j++)
1210 if (field->usage[j].type == EV_LED)
1211 return field;
1212 }
1213 }
1214 return NULL;
1215}
1216EXPORT_SYMBOL_GPL(hidinput_get_led_field);
1217
1218unsigned int hidinput_count_leds(struct hid_device *hid)
1219{
1220 struct hid_report *report;
1221 struct hid_field *field;
1222 int i, j;
1223 unsigned int count = 0;
1224
1225 list_for_each_entry(report,
1226 &hid->report_enum[HID_OUTPUT_REPORT].report_list,
1227 list) {
1228 for (i = 0; i < report->maxfield; i++) {
1229 field = report->field[i];
1230 for (j = 0; j < field->maxusage; j++)
1231 if (field->usage[j].type == EV_LED &&
1232 field->value[j])
1233 count += 1;
1234 }
1235 }
1236 return count;
1237}
1238EXPORT_SYMBOL_GPL(hidinput_count_leds);
1239
50c9d75b
DH		 1240static void hidinput_led_worker(struct work_struct *work)
1241{
1242 struct hid_device *hid = container_of(work, struct hid_device,
1243 led_work);
1244 struct hid_field *field;
1245 struct hid_report *report;
2ebaebcf 1246 int len, ret;
50c9d75b
DH		 1247 __u8 *buf;
1248
1249 field = hidinput_get_led_field(hid);
1250 if (!field)
1251 return;
1252
1253 /*
1254 * field->report is accessed unlocked regarding HID core. So there might
1255 * be another incoming SET-LED request from user-space, which changes
1256 * the LED state while we assemble our outgoing buffer. However, this
1257 * doesn't matter as hid_output_report() correctly converts it into a
1258 * boolean value no matter what information is currently set on the LED
1259 * field (even garbage). So the remote device will always get a valid
1260 * request.
1261 * And in case we send a wrong value, a next led worker is spawned
1262 * for every SET-LED request so the following worker will send the
1263 * correct value, guaranteed!
1264 */
1265
1266 report = field->report;
1267
1268 /* use custom SET_REPORT request if possible (asynchronous) */
1269 if (hid->ll_driver->request)
1270 return hid->ll_driver->request(hid, report, HID_REQ_SET_REPORT);
1271
1272 /* fall back to generic raw-output-report */
dabb05c6 1273 len = hid_report_len(report);
9d27f432 1274 buf = hid_alloc_report_buf(report, GFP_KERNEL);
50c9d75b
DH		 1275 if (!buf)
1276 return;
1277
1278 hid_output_report(report, buf);
1279 /* synchronous output report */
2ebaebcf
BT		 1280 ret = hid_hw_output_report(hid, buf, len);
1281 if (ret == -ENOSYS)
1282 hid_hw_raw_request(hid, report->id, buf, len, HID_OUTPUT_REPORT,
1283 HID_REQ_SET_REPORT);
50c9d75b
DH		 1284 kfree(buf);
1285}
1286
1287static int hidinput_input_event(struct input_dev *dev, unsigned int type,
1288 unsigned int code, int value)
1289{
1290 struct hid_device *hid = input_get_drvdata(dev);
1291 struct hid_field *field;
1292 int offset;
1293
1294 if (type == EV_FF)
1295 return input_ff_event(dev, type, code, value);
1296
1297 if (type != EV_LED)
1298 return -1;
1299
1300 if ((offset = hidinput_find_field(hid, type, code, &field)) == -1) {
1301 hid_warn(dev, "event field not found\n");
1302 return -1;
1303 }
1304
1305 hid_set_field(field, offset, value);
1306
1307 schedule_work(&hid->led_work);
1308 return 0;
1309}
1310
7c379146
JK		 1311static int hidinput_open(struct input_dev *dev)
1312{
e0712985
DT		 1313 struct hid_device *hid = input_get_drvdata(dev);
1314
5bea7660 1315 return hid_hw_open(hid);
7c379146
JK		 1316}
1317
1318static void hidinput_close(struct input_dev *dev)
1319{
e0712985
DT		 1320 struct hid_device *hid = input_get_drvdata(dev);
1321
5bea7660 1322 hid_hw_close(hid);
7c379146
JK		 1323}
1324
f635bd11
HR		 1325static void report_features(struct hid_device *hid)
1326{
1327 struct hid_driver *drv = hid->driver;
1328 struct hid_report_enum *rep_enum;
1329 struct hid_report *rep;
1330 int i, j;
1331
f635bd11
HR		 1332 rep_enum = &hid->report_enum[HID_FEATURE_REPORT];
1333 list_for_each_entry(rep, &rep_enum->report_list, list)
cc6b54aa
BT		 1334 for (i = 0; i < rep->maxfield; i++) {
1335 /* Ignore if report count is out of bounds. */
1336 if (rep->field[i]->report_count < 1)
1337 continue;
1338
c5a92aa3
DN		 1339 for (j = 0; j < rep->field[i]->maxusage; j++) {
1340 /* Verify if Battery Strength feature is available */
2f2e3f6d 1341 hidinput_setup_battery(hid, HID_FEATURE_REPORT, rep->field[i]);
c5a92aa3
DN		 1342
1343 if (drv->feature_mapping)
1344 drv->feature_mapping(hid, rep->field[i],
1345 rep->field[i]->usage + j);
1346 }
cc6b54aa 1347 }
f635bd11
HR		 1348}
1349
ae751fa8
BT		 1350static struct hid_input *hidinput_allocate(struct hid_device *hid)
1351{
1352 struct hid_input *hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
1353 struct input_dev *input_dev = input_allocate_device();
1354 if (!hidinput || !input_dev) {
1355 kfree(hidinput);
1356 input_free_device(input_dev);
1357 hid_err(hid, "Out of memory during hid input probe\n");
1358 return NULL;
1359 }
1360
1361 input_set_drvdata(input_dev, hid);
3c86726c 1362 input_dev->event = hidinput_input_event;
ae751fa8
BT		 1363 input_dev->open = hidinput_open;
1364 input_dev->close = hidinput_close;
1365 input_dev->setkeycode = hidinput_setkeycode;
1366 input_dev->getkeycode = hidinput_getkeycode;
1367
1368 input_dev->name = hid->name;
1369 input_dev->phys = hid->phys;
1370 input_dev->uniq = hid->uniq;
1371 input_dev->id.bustype = hid->bus;
1372 input_dev->id.vendor = hid->vendor;
1373 input_dev->id.product = hid->product;
1374 input_dev->id.version = hid->version;
bbe31754 1375 input_dev->dev.parent = &hid->dev;
ae751fa8
BT		 1376 hidinput->input = input_dev;
1377 list_add_tail(&hidinput->list, &hid->inputs);
1378
1379 return hidinput;
1380}
1381
4f22decf
BT		 1382static bool hidinput_has_been_populated(struct hid_input *hidinput)
1383{
1384 int i;
1385 unsigned long r = 0;
1386
1387 for (i = 0; i < BITS_TO_LONGS(EV_CNT); i++)
1388 r |= hidinput->input->evbit[i];
1389
1390 for (i = 0; i < BITS_TO_LONGS(KEY_CNT); i++)
1391 r |= hidinput->input->keybit[i];
1392
1393 for (i = 0; i < BITS_TO_LONGS(REL_CNT); i++)
1394 r |= hidinput->input->relbit[i];
1395
1396 for (i = 0; i < BITS_TO_LONGS(ABS_CNT); i++)
1397 r |= hidinput->input->absbit[i];
1398
1399 for (i = 0; i < BITS_TO_LONGS(MSC_CNT); i++)
1400 r |= hidinput->input->mscbit[i];
1401
1402 for (i = 0; i < BITS_TO_LONGS(LED_CNT); i++)
1403 r |= hidinput->input->ledbit[i];
1404
1405 for (i = 0; i < BITS_TO_LONGS(SND_CNT); i++)
1406 r |= hidinput->input->sndbit[i];
1407
1408 for (i = 0; i < BITS_TO_LONGS(FF_CNT); i++)
1409 r |= hidinput->input->ffbit[i];
1410
1411 for (i = 0; i < BITS_TO_LONGS(SW_CNT); i++)
1412 r |= hidinput->input->swbit[i];
1413
1414 return !!r;
1415}
1416
1417static void hidinput_cleanup_hidinput(struct hid_device *hid,
1418 struct hid_input *hidinput)
1419{
1420 struct hid_report *report;
1421 int i, k;
1422
1423 list_del(&hidinput->list);
1424 input_free_device(hidinput->input);
1425
1426 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
1427 if (k == HID_OUTPUT_REPORT &&
1428 hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
1429 continue;
1430
1431 list_for_each_entry(report, &hid->report_enum[k].report_list,
1432 list) {
1433
1434 for (i = 0; i < report->maxfield; i++)
1435 if (report->field[i]->hidinput == hidinput)
1436 report->field[i]->hidinput = NULL;
1437 }
1438 }
1439
1440 kfree(hidinput);
1441}
1442
dde5845a
JK		 1443/*
1444 * Register the input device; print a message.
1445 * Configure the input layer interface
1446 * Read all reports and initialize the absolute field values.
1447 */
1448
93c10132 1449int hidinput_connect(struct hid_device *hid, unsigned int force)
dde5845a 1450{
9ebf3d76 1451 struct hid_driver *drv = hid->driver;
dde5845a
JK		 1452 struct hid_report *report;
1453 struct hid_input *hidinput = NULL;
dde5845a
JK		 1454 int i, j, k;
1455
1456 INIT_LIST_HEAD(&hid->inputs);
50c9d75b 1457 INIT_WORK(&hid->led_work, hidinput_led_worker);
dde5845a 1458
93c10132
JS		 1459 if (!force) {
1460 for (i = 0; i < hid->maxcollection; i++) {
1461 struct hid_collection *col = &hid->collection[i];
1462 if (col->type == HID_COLLECTION_APPLICATION ||
1463 col->type == HID_COLLECTION_PHYSICAL)
1464 if (IS_INPUT_APPLICATION(col->usage))
1465 break;
1466 }
dde5845a 1467
93c10132
JS		 1468 if (i == hid->maxcollection)
1469 return -1;
1470 }
dde5845a 1471
f635bd11
HR		 1472 report_features(hid);
1473
1474 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
0d2689c0
BT		 1475 if (k == HID_OUTPUT_REPORT &&
1476 hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
1477 continue;
5556feae 1478
dde5845a
JK		 1479 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
1480
1481 if (!report->maxfield)
1482 continue;
1483
1484 if (!hidinput) {
ae751fa8
BT		 1485 hidinput = hidinput_allocate(hid);
1486 if (!hidinput)
368d290b 1487 goto out_unwind;
dde5845a
JK		 1488 }
1489
1490 for (i = 0; i < report->maxfield; i++)
1491 for (j = 0; j < report->field[i]->maxusage; j++)
1492 hidinput_configure_usage(hidinput, report->field[i],
1493 report->field[i]->usage + j);
1494
4f22decf
BT		 1495 if ((hid->quirks & HID_QUIRK_NO_EMPTY_INPUT) &&
1496 !hidinput_has_been_populated(hidinput))
1497 continue;
1498
dde5845a
JK		 1499 if (hid->quirks & HID_QUIRK_MULTI_INPUT) {
1500 /* This will leave hidinput NULL, so that it
1501 * allocates another one if we have more inputs on
1502 * the same interface. Some devices (e.g. Happ's
1503 * UGCI) cram a lot of unrelated inputs into the
1504 * same interface. */
1505 hidinput->report = report;
9ebf3d76
HR		 1506 if (drv->input_configured)
1507 drv->input_configured(hid, hidinput);
368d290b
DH		 1508 if (input_register_device(hidinput->input))
1509 goto out_cleanup;
dde5845a
JK		 1510 hidinput = NULL;
1511 }
1512 }
0d2689c0 1513 }
dde5845a 1514
4f22decf
BT		 1515 if (hidinput && (hid->quirks & HID_QUIRK_NO_EMPTY_INPUT) &&
1516 !hidinput_has_been_populated(hidinput)) {
1517 /* no need to register an input device not populated */
1518 hidinput_cleanup_hidinput(hid, hidinput);
1519 hidinput = NULL;
1520 }
1521
1522 if (list_empty(&hid->inputs)) {
1523 hid_err(hid, "No inputs registered, leaving\n");
1524 goto out_unwind;
1525 }
1526
9ebf3d76
HR		 1527 if (hidinput) {
1528 if (drv->input_configured)
1529 drv->input_configured(hid, hidinput);
1530 if (input_register_device(hidinput->input))
1531 goto out_cleanup;
1532 }
dde5845a
JK		 1533
1534 return 0;
368d290b
DH		 1535
1536out_cleanup:
d9236303 1537 list_del(&hidinput->list);
368d290b
DH		 1538 input_free_device(hidinput->input);
1539 kfree(hidinput);
1540out_unwind:
1541 /* unwind the ones we already registered */
1542 hidinput_disconnect(hid);
1543
1544 return -1;
dde5845a 1545}
229695e5 1546EXPORT_SYMBOL_GPL(hidinput_connect);
dde5845a
JK		 1547
1548void hidinput_disconnect(struct hid_device *hid)
1549{
1550 struct hid_input *hidinput, *next;
1551
4f5ca836
JF		 1552 hidinput_cleanup_battery(hid);
1553
dde5845a
JK		 1554 list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
1555 list_del(&hidinput->list);
1556 input_unregister_device(hidinput->input);
1557 kfree(hidinput);
1558 }
50c9d75b
DH		 1559
1560 /* led_work is spawned by input_dev callbacks, but doesn't access the
1561 * parent input_dev at all. Once all input devices are removed, we
1562 * know that led_work will never get restarted, so we can cancel it
1563 * synchronously and are safe. */
1564 cancel_work_sync(&hid->led_work);
dde5845a 1565}
229695e5
JK		 1566EXPORT_SYMBOL_GPL(hidinput_disconnect);
1567
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