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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek...
[linux-2.6-block.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:
c0bf5741 256 case ABS_WHEEL:
b73b2da0
NK		 257 case ABS_TILT_X:
258 case ABS_TILT_Y:
4ea6e4ff
NK		 259 if (field->unit == 0x14) { /* If degrees */
260 /* Convert to radians */
261 prev = logical_extents;
262 logical_extents *= 573;
263 if (logical_extents < prev)
264 return 0;
265 unit_exponent += 1;
266 } else if (field->unit != 0x12) { /* If not radians */
267 return 0;
268 }
b73b2da0
NK		 269 break;
270
271 default:
4ea6e4ff
NK		 272 return 0;
273 }
274
275 /* Apply negative unit exponent */
276 for (; unit_exponent < 0; unit_exponent++) {
277 prev = logical_extents;
278 logical_extents *= 10;
279 if (logical_extents < prev)
280 return 0;
281 }
282 /* Apply positive unit exponent */
283 for (; unit_exponent > 0; unit_exponent--) {
284 prev = physical_extents;
285 physical_extents *= 10;
286 if (physical_extents < prev)
287 return 0;
288 }
289
290 /* Calculate resolution */
ccdd6994 291 return DIV_ROUND_CLOSEST(logical_extents, physical_extents);
4ea6e4ff 292}
37cf6e6f 293EXPORT_SYMBOL_GPL(hidinput_calc_abs_res);
4ea6e4ff 294
4f5ca836
JF		 295#ifdef CONFIG_HID_BATTERY_STRENGTH
296static enum power_supply_property hidinput_battery_props[] = {
297 POWER_SUPPLY_PROP_PRESENT,
298 POWER_SUPPLY_PROP_ONLINE,
299 POWER_SUPPLY_PROP_CAPACITY,
300 POWER_SUPPLY_PROP_MODEL_NAME,
45d9c273
JF		 301 POWER_SUPPLY_PROP_STATUS,
302 POWER_SUPPLY_PROP_SCOPE,
4f5ca836
JF		 303};
304
bbc21cfd 305#define HID_BATTERY_QUIRK_PERCENT (1 << 0) /* always reports percent */
652aa6a9 306#define HID_BATTERY_QUIRK_FEATURE (1 << 1) /* ask for feature report */
5d9374cf 307#define HID_BATTERY_QUIRK_IGNORE (1 << 2) /* completely ignore the battery */
bbc21cfd
JF		 308
309static const struct hid_device_id hid_battery_quirks[] = {
4cc85417 310 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
cbd366be
RS		 311 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO),
312 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
313 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
314 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI),
315 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
652aa6a9 316 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
cbd366be 317 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI),
652aa6a9 318 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
da940db4
KR		 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 },
0c47935c
DN		 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 },
5d9374cf
AP		 325 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM,
326 USB_DEVICE_ID_ELECOM_BM084),
327 HID_BATTERY_QUIRK_IGNORE },
bbc21cfd
JF		 328 {}
329};
330
331static unsigned find_battery_quirk(struct hid_device *hdev)
332{
333 unsigned quirks = 0;
334 const struct hid_device_id *match;
335
336 match = hid_match_id(hdev, hid_battery_quirks);
337 if (match != NULL)
338 quirks = match->driver_data;
339
340 return quirks;
341}
342
4f5ca836
JF		 343static int hidinput_get_battery_property(struct power_supply *psy,
344 enum power_supply_property prop,
345 union power_supply_propval *val)
346{
297d716f 347 struct hid_device *dev = power_supply_get_drvdata(psy);
4f5ca836 348 int ret = 0;
6c2794a2 349 __u8 *buf;
4f5ca836
JF		 350
351 switch (prop) {
352 case POWER_SUPPLY_PROP_PRESENT:
353 case POWER_SUPPLY_PROP_ONLINE:
354 val->intval = 1;
355 break;
356
357 case POWER_SUPPLY_PROP_CAPACITY:
6c2794a2
JK		 358
359 buf = kmalloc(2 * sizeof(__u8), GFP_KERNEL);
360 if (!buf) {
361 ret = -ENOMEM;
362 break;
363 }
cafebc05
BT		 364 ret = hid_hw_raw_request(dev, dev->battery_report_id, buf, 2,
365 dev->battery_report_type,
366 HID_REQ_GET_REPORT);
652aa6a9
JF		 367
368 if (ret != 2) {
d0a934b7 369 ret = -ENODATA;
6c2794a2 370 kfree(buf);
c5a92aa3
DN		 371 break;
372 }
d0a934b7 373 ret = 0;
c5a92aa3 374
4f5ca836 375 if (dev->battery_min < dev->battery_max &&
bbc21cfd
JF		 376 buf[1] >= dev->battery_min &&
377 buf[1] <= dev->battery_max)
378 val->intval = (100 * (buf[1] - dev->battery_min)) /
4f5ca836 379 (dev->battery_max - dev->battery_min);
6c2794a2 380 kfree(buf);
4f5ca836
JF		 381 break;
382
383 case POWER_SUPPLY_PROP_MODEL_NAME:
384 val->strval = dev->name;
385 break;
386
c5a92aa3
DN		 387 case POWER_SUPPLY_PROP_STATUS:
388 val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
389 break;
390
45d9c273
JF		 391 case POWER_SUPPLY_PROP_SCOPE:
392 val->intval = POWER_SUPPLY_SCOPE_DEVICE;
393 break;
394
4f5ca836
JF		 395 default:
396 ret = -EINVAL;
397 break;
398 }
399
400 return ret;
401}
402
2f2e3f6d 403static bool hidinput_setup_battery(struct hid_device *dev, unsigned report_type, struct hid_field *field)
4f5ca836 404{
297d716f
KK		 405 struct power_supply_desc *psy_desc = NULL;
406 struct power_supply_config psy_cfg = { .drv_data = dev, };
bbc21cfd 407 unsigned quirks;
2f2e3f6d
JF		 408 s32 min, max;
409
410 if (field->usage->hid != HID_DC_BATTERYSTRENGTH)
411 return false; /* no match */
4f5ca836 412
297d716f 413 if (dev->battery != NULL)
2f2e3f6d 414 goto out; /* already initialized? */
4f5ca836 415
5d9374cf
AP		 416 quirks = find_battery_quirk(dev);
417
418 hid_dbg(dev, "device %x:%x:%x %d quirks %d\n",
419 dev->bus, dev->vendor, dev->product, dev->version, quirks);
420
421 if (quirks & HID_BATTERY_QUIRK_IGNORE)
422 goto out;
423
297d716f
KK		 424 psy_desc = kzalloc(sizeof(*psy_desc), GFP_KERNEL);
425 if (psy_desc == NULL)
2f2e3f6d 426 goto out;
4f5ca836 427
297d716f
KK		 428 psy_desc->name = kasprintf(GFP_KERNEL, "hid-%s-battery", dev->uniq);
429 if (psy_desc->name == NULL) {
430 kfree(psy_desc);
431 goto out;
432 }
433
434 psy_desc->type = POWER_SUPPLY_TYPE_BATTERY;
435 psy_desc->properties = hidinput_battery_props;
436 psy_desc->num_properties = ARRAY_SIZE(hidinput_battery_props);
437 psy_desc->use_for_apm = 0;
438 psy_desc->get_property = hidinput_get_battery_property;
4f5ca836 439
2f2e3f6d
JF		 440 min = field->logical_minimum;
441 max = field->logical_maximum;
442
bbc21cfd
JF		 443 if (quirks & HID_BATTERY_QUIRK_PERCENT) {
444 min = 0;
445 max = 100;
446 }
447
652aa6a9
JF		 448 if (quirks & HID_BATTERY_QUIRK_FEATURE)
449 report_type = HID_FEATURE_REPORT;
450
4f5ca836
JF		 451 dev->battery_min = min;
452 dev->battery_max = max;
fb8ac91b 453 dev->battery_report_type = report_type;
2f2e3f6d 454 dev->battery_report_id = field->report->id;
4f5ca836 455
297d716f
KK		 456 dev->battery = power_supply_register(&dev->dev, psy_desc, &psy_cfg);
457 if (IS_ERR(dev->battery)) {
458 hid_warn(dev, "can't register power supply: %ld\n",
459 PTR_ERR(dev->battery));
460 kfree(psy_desc->name);
461 kfree(psy_desc);
462 dev->battery = NULL;
fbea947c
KK		 463 } else {
464 power_supply_powers(dev->battery, &dev->dev);
4f5ca836 465 }
2f2e3f6d
JF		 466
467out:
468 return true;
4f5ca836
JF		 469}
470
471static void hidinput_cleanup_battery(struct hid_device *dev)
472{
0621809e
KK		 473 const struct power_supply_desc *psy_desc;
474
297d716f 475 if (!dev->battery)
4f5ca836
JF		 476 return;
477
0621809e 478 psy_desc = dev->battery->desc;
297d716f 479 power_supply_unregister(dev->battery);
0621809e
KK		 480 kfree(psy_desc->name);
481 kfree(psy_desc);
297d716f 482 dev->battery = NULL;
4f5ca836
JF		 483}
484#else /* !CONFIG_HID_BATTERY_STRENGTH */
2f2e3f6d
JF		 485static bool hidinput_setup_battery(struct hid_device *dev, unsigned report_type,
486 struct hid_field *field)
4f5ca836 487{
2f2e3f6d 488 return false;
4f5ca836
JF		 489}
490
491static void hidinput_cleanup_battery(struct hid_device *dev)
492{
493}
494#endif /* CONFIG_HID_BATTERY_STRENGTH */
495
dde5845a
JK		 496static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
497 struct hid_usage *usage)
498{
499 struct input_dev *input = hidinput->input;
e0712985 500 struct hid_device *device = input_get_drvdata(input);
3715ade9 501 int max = 0, code;
dde5845a
JK		 502 unsigned long *bit = NULL;
503
504 field->hidinput = hidinput;
505
dde5845a
JK		 506 if (field->flags & HID_MAIN_ITEM_CONSTANT)
507 goto ignore;
508
cc6b54aa
BT		 509 /* Ignore if report count is out of bounds. */
510 if (field->report_count < 1)
511 goto ignore;
512
82eb1219
JK		 513 /* only LED usages are supported in output fields */
514 if (field->report_type == HID_OUTPUT_REPORT &&
515 (usage->hid & HID_USAGE_PAGE) != HID_UP_LED) {
82eb1219
JK		 516 goto ignore;
517 }
518
c500c971
JS		 519 if (device->driver->input_mapping) {
520 int ret = device->driver->input_mapping(device, hidinput, field,
521 usage, &bit, &max);
522 if (ret > 0)
523 goto mapped;
524 if (ret < 0)
525 goto ignore;
526 }
527
dde5845a 528 switch (usage->hid & HID_USAGE_PAGE) {
880d29f1
JS		 529 case HID_UP_UNDEFINED:
530 goto ignore;
dde5845a 531
880d29f1
JS		 532 case HID_UP_KEYBOARD:
533 set_bit(EV_REP, input->evbit);
dde5845a 534
880d29f1
JS		 535 if ((usage->hid & HID_USAGE) < 256) {
536 if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
537 map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
538 } else
539 map_key(KEY_UNKNOWN);
dde5845a 540
880d29f1 541 break;
dde5845a 542
880d29f1 543 case HID_UP_BUTTON:
7f978b9b 544 code = ((usage->hid - 1) & HID_USAGE);
dde5845a 545
880d29f1
JS		 546 switch (field->application) {
547 case HID_GD_MOUSE:
1874542d 548 case HID_GD_POINTER: code += BTN_MOUSE; break;
cf2f765f 549 case HID_GD_JOYSTICK:
fc99f22c
DM		 550 if (code <= 0xf)
551 code += BTN_JOYSTICK;
552 else
f8e86d05
IR		 553 code += BTN_TRIGGER_HAPPY - 0x10;
554 break;
555 case HID_GD_GAMEPAD:
556 if (code <= 0xf)
557 code += BTN_GAMEPAD;
558 else
559 code += BTN_TRIGGER_HAPPY - 0x10;
fc99f22c 560 break;
880d29f1
JS		 561 default:
562 switch (field->physical) {
563 case HID_GD_MOUSE:
1874542d
FF		 564 case HID_GD_POINTER: code += BTN_MOUSE; break;
565 case HID_GD_JOYSTICK: code += BTN_JOYSTICK; break;
566 case HID_GD_GAMEPAD: code += BTN_GAMEPAD; break;
567 default: code += BTN_MISC;
dde5845a 568 }
880d29f1 569 }
dde5845a 570
880d29f1
JS		 571 map_key(code);
572 break;
573
574 case HID_UP_SIMULATION:
575 switch (usage->hid & 0xffff) {
576 case 0xba: map_abs(ABS_RUDDER); break;
577 case 0xbb: map_abs(ABS_THROTTLE); break;
578 case 0xc4: map_abs(ABS_GAS); break;
579 case 0xc5: map_abs(ABS_BRAKE); break;
580 case 0xc8: map_abs(ABS_WHEEL); break;
581 default: goto ignore;
582 }
583 break;
584
585 case HID_UP_GENDESK:
586 if ((usage->hid & 0xf0) == 0x80) { /* SystemControl */
587 switch (usage->hid & 0xf) {
588 case 0x1: map_key_clear(KEY_POWER); break;
589 case 0x2: map_key_clear(KEY_SLEEP); break;
590 case 0x3: map_key_clear(KEY_WAKEUP); break;
437f3b19
JW		 591 case 0x4: map_key_clear(KEY_CONTEXT_MENU); break;
592 case 0x5: map_key_clear(KEY_MENU); break;
593 case 0x6: map_key_clear(KEY_PROG1); break;
594 case 0x7: map_key_clear(KEY_HELP); break;
595 case 0x8: map_key_clear(KEY_EXIT); break;
596 case 0x9: map_key_clear(KEY_SELECT); break;
597 case 0xa: map_key_clear(KEY_RIGHT); break;
598 case 0xb: map_key_clear(KEY_LEFT); break;
599 case 0xc: map_key_clear(KEY_UP); break;
600 case 0xd: map_key_clear(KEY_DOWN); break;
601 case 0xe: map_key_clear(KEY_POWER2); break;
602 case 0xf: map_key_clear(KEY_RESTART); break;
880d29f1 603 default: goto unknown;
dde5845a
JK		 604 }
605 break;
880d29f1 606 }
dde5845a 607
1989dada
BT		 608 /*
609 * Some lazy vendors declare 255 usages for System Control,
610 * leading to the creation of ABS_X|Y axis and too many others.
611 * It wouldn't be a problem if joydev doesn't consider the
612 * device as a joystick then.
613 */
614 if (field->application == HID_GD_SYSTEM_CONTROL)
615 goto ignore;
616
880d29f1 617 if ((usage->hid & 0xf0) == 0x90) { /* D-pad */
dde5845a 618 switch (usage->hid) {
880d29f1
JS		 619 case HID_GD_UP: usage->hat_dir = 1; break;
620 case HID_GD_DOWN: usage->hat_dir = 5; break;
621 case HID_GD_RIGHT: usage->hat_dir = 3; break;
622 case HID_GD_LEFT: usage->hat_dir = 7; break;
623 default: goto unknown;
dde5845a 624 }
880d29f1
JS		 625 if (field->dpad) {
626 map_abs(field->dpad);
627 goto ignore;
d4ae650a 628 }
880d29f1 629 map_abs(ABS_HAT0X);
dde5845a 630 break;
880d29f1 631 }
dde5845a 632
880d29f1
JS		 633 switch (usage->hid) {
634 /* These usage IDs map directly to the usage codes. */
635 case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
636 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
79346d62
BT		 637 if (field->flags & HID_MAIN_ITEM_RELATIVE)
638 map_rel(usage->hid & 0xf);
639 else
640 map_abs_clear(usage->hid & 0xf);
641 break;
642
880d29f1
JS		 643 case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL:
644 if (field->flags & HID_MAIN_ITEM_RELATIVE)
645 map_rel(usage->hid & 0xf);
646 else
647 map_abs(usage->hid & 0xf);
648 break;
dde5845a 649
880d29f1
JS		 650 case HID_GD_HATSWITCH:
651 usage->hat_min = field->logical_minimum;
652 usage->hat_max = field->logical_maximum;
653 map_abs(ABS_HAT0X);
654 break;
dde5845a 655
880d29f1
JS		 656 case HID_GD_START: map_key_clear(BTN_START); break;
657 case HID_GD_SELECT: map_key_clear(BTN_SELECT); break;
dde5845a 658
880d29f1
JS		 659 default: goto unknown;
660 }
dde5845a 661
880d29f1
JS		 662 break;
663
664 case HID_UP_LED:
665 switch (usage->hid & 0xffff) { /* HID-Value: */
666 case 0x01: map_led (LED_NUML); break; /* "Num Lock" */
667 case 0x02: map_led (LED_CAPSL); break; /* "Caps Lock" */
668 case 0x03: map_led (LED_SCROLLL); break; /* "Scroll Lock" */
669 case 0x04: map_led (LED_COMPOSE); break; /* "Compose" */
670 case 0x05: map_led (LED_KANA); break; /* "Kana" */
671 case 0x27: map_led (LED_SLEEP); break; /* "Stand-By" */
672 case 0x4c: map_led (LED_SUSPEND); break; /* "System Suspend" */
673 case 0x09: map_led (LED_MUTE); break; /* "Mute" */
674 case 0x4b: map_led (LED_MISC); break; /* "Generic Indicator" */
675 case 0x19: map_led (LED_MAIL); break; /* "Message Waiting" */
676 case 0x4d: map_led (LED_CHARGING); break; /* "External Power Connected" */
677
678 default: goto ignore;
679 }
680 break;
681
682 case HID_UP_DIGITIZER:
683 switch (usage->hid & 0xff) {
8c8b01c3
FB		 684 case 0x00: /* Undefined */
685 goto ignore;
686
880d29f1
JS		 687 case 0x30: /* TipPressure */
688 if (!test_bit(BTN_TOUCH, input->keybit)) {
689 device->quirks |= HID_QUIRK_NOTOUCH;
690 set_bit(EV_KEY, input->evbit);
691 set_bit(BTN_TOUCH, input->keybit);
dde5845a 692 }
880d29f1 693 map_abs_clear(ABS_PRESSURE);
dde5845a
JK		 694 break;
695
880d29f1
JS		 696 case 0x32: /* InRange */
697 switch (field->physical & 0xff) {
698 case 0x21: map_key(BTN_TOOL_MOUSE); break;
699 case 0x22: map_key(BTN_TOOL_FINGER); break;
700 default: map_key(BTN_TOOL_PEN); break;
dde5845a
JK		 701 }
702 break;
703
880d29f1
JS		 704 case 0x3c: /* Invert */
705 map_key_clear(BTN_TOOL_RUBBER);
dde5845a
JK		 706 break;
707
b73b2da0
NK		 708 case 0x3d: /* X Tilt */
709 map_abs_clear(ABS_TILT_X);
710 break;
711
712 case 0x3e: /* Y Tilt */
713 map_abs_clear(ABS_TILT_Y);
714 break;
715
880d29f1
JS		 716 case 0x33: /* Touch */
717 case 0x42: /* TipSwitch */
718 case 0x43: /* TipSwitch2 */
719 device->quirks &= ~HID_QUIRK_NOTOUCH;
720 map_key_clear(BTN_TOUCH);
721 break;
dde5845a 722
880d29f1
JS		 723 case 0x44: /* BarrelSwitch */
724 map_key_clear(BTN_STYLUS);
725 break;
dde5845a 726
50b63697 727 case 0x46: /* TabletPick */
368c9664 728 case 0x5a: /* SecondaryBarrelSwitch */
50b63697
NK		 729 map_key_clear(BTN_STYLUS2);
730 break;
731
368c9664 732 case 0x5b: /* TransducerSerialNumber */
5989a55a
JG		 733 usage->type = EV_MSC;
734 usage->code = MSC_SERIAL;
735 bit = input->mscbit;
736 max = MSC_MAX;
368c9664
PC		 737 break;
738
880d29f1
JS		 739 default: goto unknown;
740 }
741 break;
742
f3dddf24
DT		 743 case HID_UP_TELEPHONY:
744 switch (usage->hid & HID_USAGE) {
745 case 0x2f: map_key_clear(KEY_MICMUTE); break;
746 case 0xb0: map_key_clear(KEY_NUMERIC_0); break;
747 case 0xb1: map_key_clear(KEY_NUMERIC_1); break;
748 case 0xb2: map_key_clear(KEY_NUMERIC_2); break;
749 case 0xb3: map_key_clear(KEY_NUMERIC_3); break;
750 case 0xb4: map_key_clear(KEY_NUMERIC_4); break;
751 case 0xb5: map_key_clear(KEY_NUMERIC_5); break;
752 case 0xb6: map_key_clear(KEY_NUMERIC_6); break;
753 case 0xb7: map_key_clear(KEY_NUMERIC_7); break;
754 case 0xb8: map_key_clear(KEY_NUMERIC_8); break;
755 case 0xb9: map_key_clear(KEY_NUMERIC_9); break;
756 case 0xba: map_key_clear(KEY_NUMERIC_STAR); break;
757 case 0xbb: map_key_clear(KEY_NUMERIC_POUND); break;
758 case 0xbc: map_key_clear(KEY_NUMERIC_A); break;
759 case 0xbd: map_key_clear(KEY_NUMERIC_B); break;
760 case 0xbe: map_key_clear(KEY_NUMERIC_C); break;
761 case 0xbf: map_key_clear(KEY_NUMERIC_D); break;
762 default: goto ignore;
763 }
764 break;
765
437f3b19 766 case HID_UP_CONSUMER: /* USB HUT v1.12, pages 75-84 */
880d29f1
JS		 767 switch (usage->hid & HID_USAGE) {
768 case 0x000: goto ignore;
437f3b19
JW		 769 case 0x030: map_key_clear(KEY_POWER); break;
770 case 0x031: map_key_clear(KEY_RESTART); break;
771 case 0x032: map_key_clear(KEY_SLEEP); break;
880d29f1 772 case 0x034: map_key_clear(KEY_SLEEP); break;
437f3b19 773 case 0x035: map_key_clear(KEY_KBDILLUMTOGGLE); break;
880d29f1
JS		 774 case 0x036: map_key_clear(BTN_MISC); break;
775
437f3b19
JW		 776 case 0x040: map_key_clear(KEY_MENU); break; /* Menu */
777 case 0x041: map_key_clear(KEY_SELECT); break; /* Menu Pick */
778 case 0x042: map_key_clear(KEY_UP); break; /* Menu Up */
779 case 0x043: map_key_clear(KEY_DOWN); break; /* Menu Down */
780 case 0x044: map_key_clear(KEY_LEFT); break; /* Menu Left */
781 case 0x045: map_key_clear(KEY_RIGHT); break; /* Menu Right */
782 case 0x046: map_key_clear(KEY_ESC); break; /* Menu Escape */
783 case 0x047: map_key_clear(KEY_KPPLUS); break; /* Menu Value Increase */
784 case 0x048: map_key_clear(KEY_KPMINUS); break; /* Menu Value Decrease */
785
786 case 0x060: map_key_clear(KEY_INFO); break; /* Data On Screen */
787 case 0x061: map_key_clear(KEY_SUBTITLE); break; /* Closed Caption */
788 case 0x063: map_key_clear(KEY_VCR); break; /* VCR/TV */
789 case 0x065: map_key_clear(KEY_CAMERA); break; /* Snapshot */
790 case 0x069: map_key_clear(KEY_RED); break;
791 case 0x06a: map_key_clear(KEY_GREEN); break;
792 case 0x06b: map_key_clear(KEY_BLUE); break;
793 case 0x06c: map_key_clear(KEY_YELLOW); break;
794 case 0x06d: map_key_clear(KEY_ZOOM); break;
795
f362e690
OG		 796 case 0x06f: map_key_clear(KEY_BRIGHTNESSUP); break;
797 case 0x070: map_key_clear(KEY_BRIGHTNESSDOWN); break;
798 case 0x072: map_key_clear(KEY_BRIGHTNESS_TOGGLE); break;
799 case 0x073: map_key_clear(KEY_BRIGHTNESS_MIN); break;
800 case 0x074: map_key_clear(KEY_BRIGHTNESS_MAX); break;
801 case 0x075: map_key_clear(KEY_BRIGHTNESS_AUTO); break;
802
437f3b19 803 case 0x082: map_key_clear(KEY_VIDEO_NEXT); break;
880d29f1 804 case 0x083: map_key_clear(KEY_LAST); break;
437f3b19 805 case 0x084: map_key_clear(KEY_ENTER); break;
880d29f1
JS		 806 case 0x088: map_key_clear(KEY_PC); break;
807 case 0x089: map_key_clear(KEY_TV); break;
808 case 0x08a: map_key_clear(KEY_WWW); break;
809 case 0x08b: map_key_clear(KEY_DVD); break;
810 case 0x08c: map_key_clear(KEY_PHONE); break;
811 case 0x08d: map_key_clear(KEY_PROGRAM); break;
812 case 0x08e: map_key_clear(KEY_VIDEOPHONE); break;
813 case 0x08f: map_key_clear(KEY_GAMES); break;
814 case 0x090: map_key_clear(KEY_MEMO); break;
815 case 0x091: map_key_clear(KEY_CD); break;
816 case 0x092: map_key_clear(KEY_VCR); break;
817 case 0x093: map_key_clear(KEY_TUNER); break;
818 case 0x094: map_key_clear(KEY_EXIT); break;
819 case 0x095: map_key_clear(KEY_HELP); break;
820 case 0x096: map_key_clear(KEY_TAPE); break;
821 case 0x097: map_key_clear(KEY_TV2); break;
822 case 0x098: map_key_clear(KEY_SAT); break;
823 case 0x09a: map_key_clear(KEY_PVR); break;
824
825 case 0x09c: map_key_clear(KEY_CHANNELUP); break;
826 case 0x09d: map_key_clear(KEY_CHANNELDOWN); break;
827 case 0x0a0: map_key_clear(KEY_VCR2); break;
828
829 case 0x0b0: map_key_clear(KEY_PLAY); break;
830 case 0x0b1: map_key_clear(KEY_PAUSE); break;
831 case 0x0b2: map_key_clear(KEY_RECORD); break;
832 case 0x0b3: map_key_clear(KEY_FASTFORWARD); break;
833 case 0x0b4: map_key_clear(KEY_REWIND); break;
834 case 0x0b5: map_key_clear(KEY_NEXTSONG); break;
835 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG); break;
836 case 0x0b7: map_key_clear(KEY_STOPCD); break;
837 case 0x0b8: map_key_clear(KEY_EJECTCD); break;
838 case 0x0bc: map_key_clear(KEY_MEDIA_REPEAT); break;
437f3b19
JW		 839 case 0x0b9: map_key_clear(KEY_SHUFFLE); break;
840 case 0x0bf: map_key_clear(KEY_SLOW); break;
880d29f1
JS		 841
842 case 0x0cd: map_key_clear(KEY_PLAYPAUSE); break;
f362e690 843 case 0x0cf: map_key_clear(KEY_VOICECOMMAND); break;
880d29f1
JS		 844 case 0x0e0: map_abs_clear(ABS_VOLUME); break;
845 case 0x0e2: map_key_clear(KEY_MUTE); break;
846 case 0x0e5: map_key_clear(KEY_BASSBOOST); break;
847 case 0x0e9: map_key_clear(KEY_VOLUMEUP); break;
848 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN); break;
437f3b19 849 case 0x0f5: map_key_clear(KEY_SLOW); break;
880d29f1 850
f362e690 851 case 0x181: map_key_clear(KEY_BUTTONCONFIG); break;
880d29f1
JS		 852 case 0x182: map_key_clear(KEY_BOOKMARKS); break;
853 case 0x183: map_key_clear(KEY_CONFIG); break;
854 case 0x184: map_key_clear(KEY_WORDPROCESSOR); break;
855 case 0x185: map_key_clear(KEY_EDITOR); break;
856 case 0x186: map_key_clear(KEY_SPREADSHEET); break;
857 case 0x187: map_key_clear(KEY_GRAPHICSEDITOR); break;
858 case 0x188: map_key_clear(KEY_PRESENTATION); break;
859 case 0x189: map_key_clear(KEY_DATABASE); break;
860 case 0x18a: map_key_clear(KEY_MAIL); break;
861 case 0x18b: map_key_clear(KEY_NEWS); break;
862 case 0x18c: map_key_clear(KEY_VOICEMAIL); break;
863 case 0x18d: map_key_clear(KEY_ADDRESSBOOK); break;
864 case 0x18e: map_key_clear(KEY_CALENDAR); break;
f362e690
OG		 865 case 0x18f: map_key_clear(KEY_TASKMANAGER); break;
866 case 0x190: map_key_clear(KEY_JOURNAL); break;
880d29f1
JS		 867 case 0x191: map_key_clear(KEY_FINANCE); break;
868 case 0x192: map_key_clear(KEY_CALC); break;
437f3b19 869 case 0x193: map_key_clear(KEY_PLAYER); break;
880d29f1
JS		 870 case 0x194: map_key_clear(KEY_FILE); break;
871 case 0x196: map_key_clear(KEY_WWW); break;
0690535d 872 case 0x199: map_key_clear(KEY_CHAT); break;
880d29f1
JS		 873 case 0x19c: map_key_clear(KEY_LOGOFF); break;
874 case 0x19e: map_key_clear(KEY_COFFEE); break;
f362e690
OG		 875 case 0x19f: map_key_clear(KEY_CONTROLPANEL); break;
876 case 0x1a2: map_key_clear(KEY_APPSELECT); break;
5820e4d4
HG		 877 case 0x1a3: map_key_clear(KEY_NEXT); break;
878 case 0x1a4: map_key_clear(KEY_PREVIOUS); break;
880d29f1
JS		 879 case 0x1a6: map_key_clear(KEY_HELP); break;
880 case 0x1a7: map_key_clear(KEY_DOCUMENTS); break;
881 case 0x1ab: map_key_clear(KEY_SPELLCHECK); break;
437f3b19 882 case 0x1ae: map_key_clear(KEY_KEYBOARD); break;
f362e690 883 case 0x1b1: map_key_clear(KEY_SCREENSAVER); break;
5820e4d4 884 case 0x1b4: map_key_clear(KEY_FILE); break;
437f3b19
JW		 885 case 0x1b6: map_key_clear(KEY_IMAGES); break;
886 case 0x1b7: map_key_clear(KEY_AUDIO); break;
887 case 0x1b8: map_key_clear(KEY_VIDEO); break;
880d29f1
JS		 888 case 0x1bc: map_key_clear(KEY_MESSENGER); break;
889 case 0x1bd: map_key_clear(KEY_INFO); break;
890 case 0x201: map_key_clear(KEY_NEW); break;
891 case 0x202: map_key_clear(KEY_OPEN); break;
892 case 0x203: map_key_clear(KEY_CLOSE); break;
893 case 0x204: map_key_clear(KEY_EXIT); break;
894 case 0x207: map_key_clear(KEY_SAVE); break;
895 case 0x208: map_key_clear(KEY_PRINT); break;
896 case 0x209: map_key_clear(KEY_PROPS); break;
897 case 0x21a: map_key_clear(KEY_UNDO); break;
898 case 0x21b: map_key_clear(KEY_COPY); break;
899 case 0x21c: map_key_clear(KEY_CUT); break;
900 case 0x21d: map_key_clear(KEY_PASTE); break;
901 case 0x21f: map_key_clear(KEY_FIND); break;
902 case 0x221: map_key_clear(KEY_SEARCH); break;
903 case 0x222: map_key_clear(KEY_GOTO); break;
904 case 0x223: map_key_clear(KEY_HOMEPAGE); break;
905 case 0x224: map_key_clear(KEY_BACK); break;
906 case 0x225: map_key_clear(KEY_FORWARD); break;
907 case 0x226: map_key_clear(KEY_STOP); break;
908 case 0x227: map_key_clear(KEY_REFRESH); break;
909 case 0x22a: map_key_clear(KEY_BOOKMARKS); break;
910 case 0x22d: map_key_clear(KEY_ZOOMIN); break;
911 case 0x22e: map_key_clear(KEY_ZOOMOUT); break;
912 case 0x22f: map_key_clear(KEY_ZOOMRESET); break;
913 case 0x233: map_key_clear(KEY_SCROLLUP); break;
914 case 0x234: map_key_clear(KEY_SCROLLDOWN); break;
915 case 0x238: map_rel(REL_HWHEEL); break;
437f3b19 916 case 0x23d: map_key_clear(KEY_EDIT); break;
880d29f1 917 case 0x25f: map_key_clear(KEY_CANCEL); break;
437f3b19
JW		 918 case 0x269: map_key_clear(KEY_INSERT); break;
919 case 0x26a: map_key_clear(KEY_DELETE); break;
880d29f1
JS		 920 case 0x279: map_key_clear(KEY_REDO); break;
921
922 case 0x289: map_key_clear(KEY_REPLY); break;
923 case 0x28b: map_key_clear(KEY_FORWARDMAIL); break;
924 case 0x28c: map_key_clear(KEY_SEND); break;
925
f974008f
OG		 926 case 0x2c7: map_key_clear(KEY_KBDINPUTASSIST_PREV); break;
927 case 0x2c8: map_key_clear(KEY_KBDINPUTASSIST_NEXT); break;
928 case 0x2c9: map_key_clear(KEY_KBDINPUTASSIST_PREVGROUP); break;
929 case 0x2ca: map_key_clear(KEY_KBDINPUTASSIST_NEXTGROUP); break;
930 case 0x2cb: map_key_clear(KEY_KBDINPUTASSIST_ACCEPT); break;
931 case 0x2cc: map_key_clear(KEY_KBDINPUTASSIST_CANCEL); break;
932
afdb5cce 933 default: map_key_clear(KEY_UNKNOWN);
880d29f1
JS		 934 }
935 break;
936
4f5ca836 937 case HID_UP_GENDEVCTRLS:
2f2e3f6d 938 if (hidinput_setup_battery(device, HID_INPUT_REPORT, field))
4f5ca836 939 goto ignore;
2f2e3f6d 940 else
4f5ca836
JF		 941 goto unknown;
942 break;
943
880d29f1
JS		 944 case HID_UP_HPVENDOR: /* Reported on a Dutch layout HP5308 */
945 set_bit(EV_REP, input->evbit);
946 switch (usage->hid & HID_USAGE) {
947 case 0x021: map_key_clear(KEY_PRINT); break;
948 case 0x070: map_key_clear(KEY_HP); break;
949 case 0x071: map_key_clear(KEY_CAMERA); break;
950 case 0x072: map_key_clear(KEY_SOUND); break;
951 case 0x073: map_key_clear(KEY_QUESTION); break;
952 case 0x080: map_key_clear(KEY_EMAIL); break;
953 case 0x081: map_key_clear(KEY_CHAT); break;
954 case 0x082: map_key_clear(KEY_SEARCH); break;
955 case 0x083: map_key_clear(KEY_CONNECT); break;
956 case 0x084: map_key_clear(KEY_FINANCE); break;
957 case 0x085: map_key_clear(KEY_SPORT); break;
958 case 0x086: map_key_clear(KEY_SHOP); break;
929578ab
KYL		 959 default: goto ignore;
960 }
961 break;
962
963 case HID_UP_HPVENDOR2:
964 set_bit(EV_REP, input->evbit);
965 switch (usage->hid & HID_USAGE) {
08fc9473 966 case 0x001: map_key_clear(KEY_MICMUTE); break;
929578ab
KYL		 967 case 0x003: map_key_clear(KEY_BRIGHTNESSDOWN); break;
968 case 0x004: map_key_clear(KEY_BRIGHTNESSUP); break;
880d29f1
JS		 969 default: goto ignore;
970 }
971 break;
dde5845a 972
880d29f1
JS		 973 case HID_UP_MSVENDOR:
974 goto ignore;
dde5845a 975
880d29f1
JS		 976 case HID_UP_CUSTOM: /* Reported on Logitech and Apple USB keyboards */
977 set_bit(EV_REP, input->evbit);
978 goto ignore;
dde5845a 979
880d29f1 980 case HID_UP_LOGIVENDOR:
b466c1dd
SW		 981 /* intentional fallback */
982 case HID_UP_LOGIVENDOR2:
983 /* intentional fallback */
984 case HID_UP_LOGIVENDOR3:
880d29f1 985 goto ignore;
fc99f22c 986
880d29f1
JS		 987 case HID_UP_PID:
988 switch (usage->hid & HID_USAGE) {
989 case 0xa4: map_key_clear(BTN_DEAD); break;
990 default: goto ignore;
991 }
992 break;
dde5845a 993
880d29f1
JS		 994 default:
995 unknown:
996 if (field->report_size == 1) {
997 if (field->report->type == HID_OUTPUT_REPORT) {
998 map_led(LED_MISC);
dde5845a
JK		 999 break;
1000 }
880d29f1 1001 map_key(BTN_MISC);
dde5845a 1002 break;
880d29f1
JS		 1003 }
1004 if (field->flags & HID_MAIN_ITEM_RELATIVE) {
1005 map_rel(REL_MISC);
1006 break;
1007 }
1008 map_abs(ABS_MISC);
1009 break;
dde5845a
JK		 1010 }
1011
10bd065f 1012mapped:
c500c971
JS		 1013 if (device->driver->input_mapped && device->driver->input_mapped(device,
1014 hidinput, field, usage, &bit, &max) < 0)
1015 goto ignore;
1016
dde5845a
JK		 1017 set_bit(usage->type, input->evbit);
1018
1019 while (usage->code <= max && test_and_set_bit(usage->code, bit))
1020 usage->code = find_next_zero_bit(bit, max + 1, usage->code);
1021
1022 if (usage->code > max)
1023 goto ignore;
1024
1025
1026 if (usage->type == EV_ABS) {
1027
1028 int a = field->logical_minimum;
1029 int b = field->logical_maximum;
1030
1031 if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
1032 a = field->logical_minimum = 0;
1033 b = field->logical_maximum = 255;
1034 }
1035
1036 if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
1037 input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
1038 else input_set_abs_params(input, usage->code, a, b, 0, 0);
1039
4ea6e4ff
NK		 1040 input_abs_set_res(input, usage->code,
1041 hidinput_calc_abs_res(field, usage->code));
1042
6967b4d9
HR		 1043 /* use a larger default input buffer for MT devices */
1044 if (usage->code == ABS_MT_POSITION_X && input->hint_events_per_packet == 0)
1045 input_set_events_per_packet(input, 60);
dde5845a
JK		 1046 }
1047
1048 if (usage->type == EV_ABS &&
1049 (usage->hat_min < usage->hat_max || usage->hat_dir)) {
1050 int i;
1051 for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
1052 input_set_abs_params(input, i, -1, 1, 0, 0);
1053 set_bit(i, input->absbit);
1054 }
1055 if (usage->hat_dir && !field->dpad)
1056 field->dpad = usage->code;
1057 }
1058
2c1d8aea
JK		 1059 /* for those devices which produce Consumer volume usage as relative,
1060 * we emulate pressing volumeup/volumedown appropriate number of times
1061 * in hidinput_hid_event()
1062 */
1063 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
1064 (usage->code == ABS_VOLUME)) {
1065 set_bit(KEY_VOLUMEUP, input->keybit);
1066 set_bit(KEY_VOLUMEDOWN, input->keybit);
1067 }
1068
c01d50d1
JK		 1069 if (usage->type == EV_KEY) {
1070 set_bit(EV_MSC, input->evbit);
1071 set_bit(MSC_SCAN, input->mscbit);
1072 }
1073
dde5845a 1074ignore:
dde5845a 1075 return;
a635f9dd 1076
dde5845a
JK		 1077}
1078
1079void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
1080{
1081 struct input_dev *input;
b4482a4b 1082 unsigned *quirks = &hid->quirks;
dde5845a
JK		 1083
1084 if (!field->hidinput)
1085 return;
1086
1087 input = field->hidinput->input;
1088
1089 if (!usage->type)
1090 return;
1091
dde5845a
JK		 1092 if (usage->hat_min < usage->hat_max || usage->hat_dir) {
1093 int hat_dir = usage->hat_dir;
1094 if (!hat_dir)
1095 hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
1096 if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
1097 input_event(input, usage->type, usage->code , hid_hat_to_axis[hat_dir].x);
fc99f22c
DM		 1098 input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
1099 return;
1100 }
dde5845a
JK		 1101
1102 if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */
1103 *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
1104 return;
1105 }
1106
1107 if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */
1108 if (value) {
1109 input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
1110 return;
1111 }
1112 input_event(input, usage->type, usage->code, 0);
1113 input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
1114 return;
1115 }
1116
1117 if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */
1118 int a = field->logical_minimum;
1119 int b = field->logical_maximum;
1120 input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3));
1121 }
1122
1123 if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
58037eb9 1124 dbg_hid("Maximum Effects - %d\n",value);
dde5845a
JK		 1125 return;
1126 }
1127
1128 if (usage->hid == (HID_UP_PID | 0x7fUL)) {
58037eb9 1129 dbg_hid("PID Pool Report\n");
dde5845a
JK		 1130 return;
1131 }
1132
1133 if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
1134 return;
1135
2c1d8aea
JK		 1136 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
1137 (usage->code == ABS_VOLUME)) {
1138 int count = abs(value);
1139 int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN;
1140 int i;
1141
1142 for (i = 0; i < count; i++) {
1143 input_event(input, EV_KEY, direction, 1);
1144 input_sync(input);
1145 input_event(input, EV_KEY, direction, 0);
1146 input_sync(input);
1147 }
1148 return;
1149 }
1150
883e0e36
NK		 1151 /*
1152 * Ignore out-of-range values as per HID specification,
c3883fe0
TK		 1153 * section 5.10 and 6.2.25, when NULL state bit is present.
1154 * When it's not, clamp the value to match Microsoft's input
1155 * driver as mentioned in "Required HID usages for digitizers":
1156 * https://msdn.microsoft.com/en-us/library/windows/hardware/dn672278(v=vs.85).asp
a688393b
JK		 1157 *
1158 * The logical_minimum < logical_maximum check is done so that we
1159 * don't unintentionally discard values sent by devices which
1160 * don't specify logical min and max.
883e0e36
NK		 1161 */
1162 if ((field->flags & HID_MAIN_ITEM_VARIABLE) &&
c3883fe0
TK		 1163 (field->logical_minimum < field->logical_maximum)) {
1164 if (field->flags & HID_MAIN_ITEM_NULL_STATE &&
1165 (value < field->logical_minimum ||
1166 value > field->logical_maximum)) {
1167 dbg_hid("Ignoring out-of-range value %x\n", value);
1168 return;
1169 }
1170 value = clamp(value,
1171 field->logical_minimum,
1172 field->logical_maximum);
6da70669
JK		 1173 }
1174
6ce901eb
DH		 1175 /*
1176 * Ignore reports for absolute data if the data didn't change. This is
1177 * not only an optimization but also fixes 'dead' key reports. Some
1178 * RollOver implementations for localized keys (like BACKSLASH/PIPE; HID
1179 * 0x31 and 0x32) report multiple keys, even though a localized keyboard
1180 * can only have one of them physically available. The 'dead' keys
1181 * report constant 0. As all map to the same keycode, they'd confuse
1182 * the input layer. If we filter the 'dead' keys on the HID level, we
1183 * skip the keycode translation and only forward real events.
1184 */
1185 if (!(field->flags & (HID_MAIN_ITEM_RELATIVE |
1186 HID_MAIN_ITEM_BUFFERED_BYTE)) &&
8e7b3410 1187 (field->flags & HID_MAIN_ITEM_VARIABLE) &&
6ce901eb
DH		 1188 usage->usage_index < field->maxusage &&
1189 value == field->value[usage->usage_index])
1190 return;
1191
c01d50d1 1192 /* report the usage code as scancode if the key status has changed */
323ddaa8
JB		 1193 if (usage->type == EV_KEY &&
1194 (!test_bit(usage->code, input->key)) == value)
c01d50d1 1195 input_event(input, EV_MSC, MSC_SCAN, usage->hid);
1fe8736d 1196
dde5845a
JK		 1197 input_event(input, usage->type, usage->code, value);
1198
3eb4351a
DT		 1199 if ((field->flags & HID_MAIN_ITEM_RELATIVE) &&
1200 usage->type == EV_KEY && value) {
1201 input_sync(input);
dde5845a 1202 input_event(input, usage->type, usage->code, 0);
3eb4351a 1203 }
dde5845a
JK		 1204}
1205
1206void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
1207{
1208 struct hid_input *hidinput;
1209
24750f3e
HR		 1210 if (hid->quirks & HID_QUIRK_NO_INPUT_SYNC)
1211 return;
1212
dde5845a
JK		 1213 list_for_each_entry(hidinput, &hid->inputs, list)
1214 input_sync(hidinput->input);
1215}
229695e5 1216EXPORT_SYMBOL_GPL(hidinput_report_event);
dde5845a 1217
229695e5 1218int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
dde5845a
JK		 1219{
1220 struct hid_report *report;
1221 int i, j;
1222
1223 list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
1224 for (i = 0; i < report->maxfield; i++) {
1225 *field = report->field[i];
1226 for (j = 0; j < (*field)->maxusage; j++)
1227 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
1228 return j;
1229 }
1230 }
1231 return -1;
1232}
229695e5 1233EXPORT_SYMBOL_GPL(hidinput_find_field);
dde5845a 1234
4371ea82
DK		 1235struct hid_field *hidinput_get_led_field(struct hid_device *hid)
1236{
1237 struct hid_report *report;
1238 struct hid_field *field;
1239 int i, j;
1240
1241 list_for_each_entry(report,
1242 &hid->report_enum[HID_OUTPUT_REPORT].report_list,
1243 list) {
1244 for (i = 0; i < report->maxfield; i++) {
1245 field = report->field[i];
1246 for (j = 0; j < field->maxusage; j++)
1247 if (field->usage[j].type == EV_LED)
1248 return field;
1249 }
1250 }
1251 return NULL;
1252}
1253EXPORT_SYMBOL_GPL(hidinput_get_led_field);
1254
1255unsigned int hidinput_count_leds(struct hid_device *hid)
1256{
1257 struct hid_report *report;
1258 struct hid_field *field;
1259 int i, j;
1260 unsigned int count = 0;
1261
1262 list_for_each_entry(report,
1263 &hid->report_enum[HID_OUTPUT_REPORT].report_list,
1264 list) {
1265 for (i = 0; i < report->maxfield; i++) {
1266 field = report->field[i];
1267 for (j = 0; j < field->maxusage; j++)
1268 if (field->usage[j].type == EV_LED &&
1269 field->value[j])
1270 count += 1;
1271 }
1272 }
1273 return count;
1274}
1275EXPORT_SYMBOL_GPL(hidinput_count_leds);
1276
50c9d75b
DH		 1277static void hidinput_led_worker(struct work_struct *work)
1278{
1279 struct hid_device *hid = container_of(work, struct hid_device,
1280 led_work);
1281 struct hid_field *field;
1282 struct hid_report *report;
2ebaebcf 1283 int len, ret;
50c9d75b
DH		 1284 __u8 *buf;
1285
1286 field = hidinput_get_led_field(hid);
1287 if (!field)
1288 return;
1289
1290 /*
1291 * field->report is accessed unlocked regarding HID core. So there might
1292 * be another incoming SET-LED request from user-space, which changes
1293 * the LED state while we assemble our outgoing buffer. However, this
1294 * doesn't matter as hid_output_report() correctly converts it into a
1295 * boolean value no matter what information is currently set on the LED
1296 * field (even garbage). So the remote device will always get a valid
1297 * request.
1298 * And in case we send a wrong value, a next led worker is spawned
1299 * for every SET-LED request so the following worker will send the
1300 * correct value, guaranteed!
1301 */
1302
1303 report = field->report;
1304
1305 /* use custom SET_REPORT request if possible (asynchronous) */
1306 if (hid->ll_driver->request)
1307 return hid->ll_driver->request(hid, report, HID_REQ_SET_REPORT);
1308
1309 /* fall back to generic raw-output-report */
dabb05c6 1310 len = hid_report_len(report);
9d27f432 1311 buf = hid_alloc_report_buf(report, GFP_KERNEL);
50c9d75b
DH		 1312 if (!buf)
1313 return;
1314
1315 hid_output_report(report, buf);
1316 /* synchronous output report */
2ebaebcf
BT		 1317 ret = hid_hw_output_report(hid, buf, len);
1318 if (ret == -ENOSYS)
1319 hid_hw_raw_request(hid, report->id, buf, len, HID_OUTPUT_REPORT,
1320 HID_REQ_SET_REPORT);
50c9d75b
DH		 1321 kfree(buf);
1322}
1323
1324static int hidinput_input_event(struct input_dev *dev, unsigned int type,
1325 unsigned int code, int value)
1326{
1327 struct hid_device *hid = input_get_drvdata(dev);
1328 struct hid_field *field;
1329 int offset;
1330
1331 if (type == EV_FF)
1332 return input_ff_event(dev, type, code, value);
1333
1334 if (type != EV_LED)
1335 return -1;
1336
1337 if ((offset = hidinput_find_field(hid, type, code, &field)) == -1) {
1338 hid_warn(dev, "event field not found\n");
1339 return -1;
1340 }
1341
1342 hid_set_field(field, offset, value);
1343
1344 schedule_work(&hid->led_work);
1345 return 0;
1346}
1347
7c379146
JK		 1348static int hidinput_open(struct input_dev *dev)
1349{
e0712985
DT		 1350 struct hid_device *hid = input_get_drvdata(dev);
1351
5bea7660 1352 return hid_hw_open(hid);
7c379146
JK		 1353}
1354
1355static void hidinput_close(struct input_dev *dev)
1356{
e0712985
DT		 1357 struct hid_device *hid = input_get_drvdata(dev);
1358
5bea7660 1359 hid_hw_close(hid);
7c379146
JK		 1360}
1361
f635bd11
HR		 1362static void report_features(struct hid_device *hid)
1363{
1364 struct hid_driver *drv = hid->driver;
1365 struct hid_report_enum *rep_enum;
1366 struct hid_report *rep;
1367 int i, j;
1368
f635bd11
HR		 1369 rep_enum = &hid->report_enum[HID_FEATURE_REPORT];
1370 list_for_each_entry(rep, &rep_enum->report_list, list)
cc6b54aa
BT		 1371 for (i = 0; i < rep->maxfield; i++) {
1372 /* Ignore if report count is out of bounds. */
1373 if (rep->field[i]->report_count < 1)
1374 continue;
1375
c5a92aa3
DN		 1376 for (j = 0; j < rep->field[i]->maxusage; j++) {
1377 /* Verify if Battery Strength feature is available */
2f2e3f6d 1378 hidinput_setup_battery(hid, HID_FEATURE_REPORT, rep->field[i]);
c5a92aa3
DN		 1379
1380 if (drv->feature_mapping)
1381 drv->feature_mapping(hid, rep->field[i],
1382 rep->field[i]->usage + j);
1383 }
cc6b54aa 1384 }
f635bd11
HR		 1385}
1386
ae751fa8
BT		 1387static struct hid_input *hidinput_allocate(struct hid_device *hid)
1388{
1389 struct hid_input *hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
1390 struct input_dev *input_dev = input_allocate_device();
1391 if (!hidinput || !input_dev) {
1392 kfree(hidinput);
1393 input_free_device(input_dev);
1394 hid_err(hid, "Out of memory during hid input probe\n");
1395 return NULL;
1396 }
1397
1398 input_set_drvdata(input_dev, hid);
3c86726c 1399 input_dev->event = hidinput_input_event;
ae751fa8
BT		 1400 input_dev->open = hidinput_open;
1401 input_dev->close = hidinput_close;
1402 input_dev->setkeycode = hidinput_setkeycode;
1403 input_dev->getkeycode = hidinput_getkeycode;
1404
1405 input_dev->name = hid->name;
1406 input_dev->phys = hid->phys;
1407 input_dev->uniq = hid->uniq;
1408 input_dev->id.bustype = hid->bus;
1409 input_dev->id.vendor = hid->vendor;
1410 input_dev->id.product = hid->product;
1411 input_dev->id.version = hid->version;
bbe31754 1412 input_dev->dev.parent = &hid->dev;
ae751fa8
BT		 1413 hidinput->input = input_dev;
1414 list_add_tail(&hidinput->list, &hid->inputs);
1415
1416 return hidinput;
1417}
1418
4f22decf
BT		 1419static bool hidinput_has_been_populated(struct hid_input *hidinput)
1420{
1421 int i;
1422 unsigned long r = 0;
1423
1424 for (i = 0; i < BITS_TO_LONGS(EV_CNT); i++)
1425 r |= hidinput->input->evbit[i];
1426
1427 for (i = 0; i < BITS_TO_LONGS(KEY_CNT); i++)
1428 r |= hidinput->input->keybit[i];
1429
1430 for (i = 0; i < BITS_TO_LONGS(REL_CNT); i++)
1431 r |= hidinput->input->relbit[i];
1432
1433 for (i = 0; i < BITS_TO_LONGS(ABS_CNT); i++)
1434 r |= hidinput->input->absbit[i];
1435
1436 for (i = 0; i < BITS_TO_LONGS(MSC_CNT); i++)
1437 r |= hidinput->input->mscbit[i];
1438
1439 for (i = 0; i < BITS_TO_LONGS(LED_CNT); i++)
1440 r |= hidinput->input->ledbit[i];
1441
1442 for (i = 0; i < BITS_TO_LONGS(SND_CNT); i++)
1443 r |= hidinput->input->sndbit[i];
1444
1445 for (i = 0; i < BITS_TO_LONGS(FF_CNT); i++)
1446 r |= hidinput->input->ffbit[i];
1447
1448 for (i = 0; i < BITS_TO_LONGS(SW_CNT); i++)
1449 r |= hidinput->input->swbit[i];
1450
1451 return !!r;
1452}
1453
1454static void hidinput_cleanup_hidinput(struct hid_device *hid,
1455 struct hid_input *hidinput)
1456{
1457 struct hid_report *report;
1458 int i, k;
1459
1460 list_del(&hidinput->list);
1461 input_free_device(hidinput->input);
1462
1463 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
1464 if (k == HID_OUTPUT_REPORT &&
1465 hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
1466 continue;
1467
1468 list_for_each_entry(report, &hid->report_enum[k].report_list,
1469 list) {
1470
1471 for (i = 0; i < report->maxfield; i++)
1472 if (report->field[i]->hidinput == hidinput)
1473 report->field[i]->hidinput = NULL;
1474 }
1475 }
1476
1477 kfree(hidinput);
1478}
1479
72d19459
BT		 1480static struct hid_input *hidinput_match(struct hid_report *report)
1481{
1482 struct hid_device *hid = report->device;
1483 struct hid_input *hidinput;
1484
1485 list_for_each_entry(hidinput, &hid->inputs, list) {
1486 if (hidinput->report &&
1487 hidinput->report->id == report->id)
1488 return hidinput;
1489 }
1490
1491 return NULL;
1492}
1493
1494static inline void hidinput_configure_usages(struct hid_input *hidinput,
1495 struct hid_report *report)
1496{
1497 int i, j;
1498
1499 for (i = 0; i < report->maxfield; i++)
1500 for (j = 0; j < report->field[i]->maxusage; j++)
1501 hidinput_configure_usage(hidinput, report->field[i],
1502 report->field[i]->usage + j);
1503}
1504
dde5845a
JK		 1505/*
1506 * Register the input device; print a message.
1507 * Configure the input layer interface
1508 * Read all reports and initialize the absolute field values.
1509 */
1510
93c10132 1511int hidinput_connect(struct hid_device *hid, unsigned int force)
dde5845a 1512{
9ebf3d76 1513 struct hid_driver *drv = hid->driver;
dde5845a 1514 struct hid_report *report;
72d19459
BT		 1515 struct hid_input *next, *hidinput = NULL;
1516 int i, k;
dde5845a
JK		 1517
1518 INIT_LIST_HEAD(&hid->inputs);
50c9d75b 1519 INIT_WORK(&hid->led_work, hidinput_led_worker);
dde5845a 1520
93c10132
JS		 1521 if (!force) {
1522 for (i = 0; i < hid->maxcollection; i++) {
1523 struct hid_collection *col = &hid->collection[i];
1524 if (col->type == HID_COLLECTION_APPLICATION ||
1525 col->type == HID_COLLECTION_PHYSICAL)
1526 if (IS_INPUT_APPLICATION(col->usage))
1527 break;
1528 }
dde5845a 1529
93c10132
JS		 1530 if (i == hid->maxcollection)
1531 return -1;
1532 }
dde5845a 1533
f635bd11
HR		 1534 report_features(hid);
1535
1536 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
0d2689c0
BT		 1537 if (k == HID_OUTPUT_REPORT &&
1538 hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
1539 continue;
5556feae 1540
dde5845a
JK		 1541 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
1542
1543 if (!report->maxfield)
1544 continue;
1545
72d19459
BT		 1546 /*
1547 * Find the previous hidinput report attached
1548 * to this report id.
1549 */
1550 if (hid->quirks & HID_QUIRK_MULTI_INPUT)
1551 hidinput = hidinput_match(report);
1552
dde5845a 1553 if (!hidinput) {
ae751fa8
BT		 1554 hidinput = hidinput_allocate(hid);
1555 if (!hidinput)
368d290b 1556 goto out_unwind;
dde5845a
JK		 1557 }
1558
72d19459 1559 hidinput_configure_usages(hidinput, report);
4f22decf 1560
72d19459 1561 if (hid->quirks & HID_QUIRK_MULTI_INPUT)
dde5845a 1562 hidinput->report = report;
dde5845a 1563 }
0d2689c0 1564 }
dde5845a 1565
72d19459
BT		 1566 list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
1567 if ((hid->quirks & HID_QUIRK_NO_EMPTY_INPUT) &&
1568 !hidinput_has_been_populated(hidinput)) {
1569 /* no need to register an input device not populated */
1570 hidinput_cleanup_hidinput(hid, hidinput);
1571 continue;
1572 }
1573
1574 if (drv->input_configured &&
1575 drv->input_configured(hid, hidinput))
1576 goto out_unwind;
1577 if (input_register_device(hidinput->input))
1578 goto out_unwind;
1579 hidinput->registered = true;
4f22decf
BT		 1580 }
1581
1582 if (list_empty(&hid->inputs)) {
1583 hid_err(hid, "No inputs registered, leaving\n");
1584 goto out_unwind;
1585 }
1586
dde5845a 1587 return 0;
368d290b 1588
368d290b
DH		 1589out_unwind:
1590 /* unwind the ones we already registered */
1591 hidinput_disconnect(hid);
1592
1593 return -1;
dde5845a 1594}
229695e5 1595EXPORT_SYMBOL_GPL(hidinput_connect);
dde5845a
JK		 1596
1597void hidinput_disconnect(struct hid_device *hid)
1598{
1599 struct hid_input *hidinput, *next;
1600
4f5ca836
JF		 1601 hidinput_cleanup_battery(hid);
1602
dde5845a
JK		 1603 list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
1604 list_del(&hidinput->list);
72d19459
BT		 1605 if (hidinput->registered)
1606 input_unregister_device(hidinput->input);
1607 else
1608 input_free_device(hidinput->input);
dde5845a
JK		 1609 kfree(hidinput);
1610 }
50c9d75b
DH		 1611
1612 /* led_work is spawned by input_dev callbacks, but doesn't access the
1613 * parent input_dev at all. Once all input devices are removed, we
1614 * know that led_work will never get restarted, so we can cancel it
1615 * synchronously and are safe. */
1616 cancel_work_sync(&hid->led_work);
dde5845a 1617}
229695e5
JK		 1618EXPORT_SYMBOL_GPL(hidinput_disconnect);
1619
Linux 6.x block layer and io_uring tree(s)