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HID: export hidinput_calc_abs_res
[linux-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
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:
4ea6e4ff 238 if (field->unit == 0x11) { /* If centimeters */
83ed79c5
DT		 239 /* Convert to millimeters */
240 unit_exponent += 1;
241 } else if (field->unit == 0x13) { /* If inches */
242 /* Convert to millimeters */
243 prev = physical_extents;
244 physical_extents *= 254;
245 if (physical_extents < prev)
4ea6e4ff 246 return 0;
83ed79c5
DT		 247 unit_exponent -= 1;
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 */
290 return logical_extents / physical_extents;
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[] = {
652aa6a9
JF		 308 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
309 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI),
310 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
0c47935c
DN		 311 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
312 USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI),
313 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
bbc21cfd
JF		 314 {}
315};
316
317static unsigned find_battery_quirk(struct hid_device *hdev)
318{
319 unsigned quirks = 0;
320 const struct hid_device_id *match;
321
322 match = hid_match_id(hdev, hid_battery_quirks);
323 if (match != NULL)
324 quirks = match->driver_data;
325
326 return quirks;
327}
328
4f5ca836
JF		 329static int hidinput_get_battery_property(struct power_supply *psy,
330 enum power_supply_property prop,
331 union power_supply_propval *val)
332{
333 struct hid_device *dev = container_of(psy, struct hid_device, battery);
334 int ret = 0;
ef525199 335 __u8 buf[2] = {};
4f5ca836
JF		 336
337 switch (prop) {
338 case POWER_SUPPLY_PROP_PRESENT:
339 case POWER_SUPPLY_PROP_ONLINE:
340 val->intval = 1;
341 break;
342
343 case POWER_SUPPLY_PROP_CAPACITY:
652aa6a9
JF		 344 ret = dev->hid_get_raw_report(dev, dev->battery_report_id,
345 buf, sizeof(buf),
346 dev->battery_report_type);
347
348 if (ret != 2) {
349 if (ret >= 0)
350 ret = -EINVAL;
c5a92aa3
DN		 351 break;
352 }
353
4f5ca836 354 if (dev->battery_min < dev->battery_max &&
bbc21cfd
JF		 355 buf[1] >= dev->battery_min &&
356 buf[1] <= dev->battery_max)
357 val->intval = (100 * (buf[1] - dev->battery_min)) /
4f5ca836 358 (dev->battery_max - dev->battery_min);
4f5ca836
JF		 359 break;
360
361 case POWER_SUPPLY_PROP_MODEL_NAME:
362 val->strval = dev->name;
363 break;
364
c5a92aa3
DN		 365 case POWER_SUPPLY_PROP_STATUS:
366 val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
367 break;
368
45d9c273
JF		 369 case POWER_SUPPLY_PROP_SCOPE:
370 val->intval = POWER_SUPPLY_SCOPE_DEVICE;
371 break;
372
4f5ca836
JF		 373 default:
374 ret = -EINVAL;
375 break;
376 }
377
378 return ret;
379}
380
2f2e3f6d 381static bool hidinput_setup_battery(struct hid_device *dev, unsigned report_type, struct hid_field *field)
4f5ca836
JF		 382{
383 struct power_supply *battery = &dev->battery;
384 int ret;
bbc21cfd 385 unsigned quirks;
2f2e3f6d
JF		 386 s32 min, max;
387
388 if (field->usage->hid != HID_DC_BATTERYSTRENGTH)
389 return false; /* no match */
4f5ca836
JF		 390
391 if (battery->name != NULL)
2f2e3f6d 392 goto out; /* already initialized? */
4f5ca836
JF		 393
394 battery->name = kasprintf(GFP_KERNEL, "hid-%s-battery", dev->uniq);
395 if (battery->name == NULL)
2f2e3f6d 396 goto out;
4f5ca836
JF		 397
398 battery->type = POWER_SUPPLY_TYPE_BATTERY;
399 battery->properties = hidinput_battery_props;
400 battery->num_properties = ARRAY_SIZE(hidinput_battery_props);
401 battery->use_for_apm = 0;
402 battery->get_property = hidinput_get_battery_property;
403
bbc21cfd
JF		 404 quirks = find_battery_quirk(dev);
405
652aa6a9
JF		 406 hid_dbg(dev, "device %x:%x:%x %d quirks %d\n",
407 dev->bus, dev->vendor, dev->product, dev->version, quirks);
408
2f2e3f6d
JF		 409 min = field->logical_minimum;
410 max = field->logical_maximum;
411
bbc21cfd
JF		 412 if (quirks & HID_BATTERY_QUIRK_PERCENT) {
413 min = 0;
414 max = 100;
415 }
416
652aa6a9
JF		 417 if (quirks & HID_BATTERY_QUIRK_FEATURE)
418 report_type = HID_FEATURE_REPORT;
419
4f5ca836
JF		 420 dev->battery_min = min;
421 dev->battery_max = max;
fb8ac91b 422 dev->battery_report_type = report_type;
2f2e3f6d 423 dev->battery_report_id = field->report->id;
4f5ca836
JF		 424
425 ret = power_supply_register(&dev->dev, battery);
426 if (ret != 0) {
427 hid_warn(dev, "can't register power supply: %d\n", ret);
428 kfree(battery->name);
429 battery->name = NULL;
430 }
2f2e3f6d 431
45d9c273
JF		 432 power_supply_powers(battery, &dev->dev);
433
2f2e3f6d
JF		 434out:
435 return true;
4f5ca836
JF		 436}
437
438static void hidinput_cleanup_battery(struct hid_device *dev)
439{
440 if (!dev->battery.name)
441 return;
442
443 power_supply_unregister(&dev->battery);
444 kfree(dev->battery.name);
445 dev->battery.name = NULL;
446}
447#else /* !CONFIG_HID_BATTERY_STRENGTH */
2f2e3f6d
JF		 448static bool hidinput_setup_battery(struct hid_device *dev, unsigned report_type,
449 struct hid_field *field)
4f5ca836 450{
2f2e3f6d 451 return false;
4f5ca836
JF		 452}
453
454static void hidinput_cleanup_battery(struct hid_device *dev)
455{
456}
457#endif /* CONFIG_HID_BATTERY_STRENGTH */
458
dde5845a
JK		 459static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
460 struct hid_usage *usage)
461{
462 struct input_dev *input = hidinput->input;
e0712985 463 struct hid_device *device = input_get_drvdata(input);
3715ade9 464 int max = 0, code;
dde5845a
JK		 465 unsigned long *bit = NULL;
466
467 field->hidinput = hidinput;
468
dde5845a
JK		 469 if (field->flags & HID_MAIN_ITEM_CONSTANT)
470 goto ignore;
471
82eb1219
JK		 472 /* only LED usages are supported in output fields */
473 if (field->report_type == HID_OUTPUT_REPORT &&
474 (usage->hid & HID_USAGE_PAGE) != HID_UP_LED) {
82eb1219
JK		 475 goto ignore;
476 }
477
c500c971
JS		 478 if (device->driver->input_mapping) {
479 int ret = device->driver->input_mapping(device, hidinput, field,
480 usage, &bit, &max);
481 if (ret > 0)
482 goto mapped;
483 if (ret < 0)
484 goto ignore;
485 }
486
dde5845a 487 switch (usage->hid & HID_USAGE_PAGE) {
880d29f1
JS		 488 case HID_UP_UNDEFINED:
489 goto ignore;
dde5845a 490
880d29f1
JS		 491 case HID_UP_KEYBOARD:
492 set_bit(EV_REP, input->evbit);
dde5845a 493
880d29f1
JS		 494 if ((usage->hid & HID_USAGE) < 256) {
495 if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
496 map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
497 } else
498 map_key(KEY_UNKNOWN);
dde5845a 499
880d29f1 500 break;
dde5845a 501
880d29f1 502 case HID_UP_BUTTON:
7f978b9b 503 code = ((usage->hid - 1) & HID_USAGE);
dde5845a 504
880d29f1
JS		 505 switch (field->application) {
506 case HID_GD_MOUSE:
1874542d 507 case HID_GD_POINTER: code += BTN_MOUSE; break;
cf2f765f 508 case HID_GD_JOYSTICK:
fc99f22c
DM		 509 if (code <= 0xf)
510 code += BTN_JOYSTICK;
511 else
512 code += BTN_TRIGGER_HAPPY;
513 break;
1874542d 514 case HID_GD_GAMEPAD: code += BTN_GAMEPAD; break;
880d29f1
JS		 515 default:
516 switch (field->physical) {
517 case HID_GD_MOUSE:
1874542d
FF		 518 case HID_GD_POINTER: code += BTN_MOUSE; break;
519 case HID_GD_JOYSTICK: code += BTN_JOYSTICK; break;
520 case HID_GD_GAMEPAD: code += BTN_GAMEPAD; break;
521 default: code += BTN_MISC;
dde5845a 522 }
880d29f1 523 }
dde5845a 524
880d29f1
JS		 525 map_key(code);
526 break;
527
528 case HID_UP_SIMULATION:
529 switch (usage->hid & 0xffff) {
530 case 0xba: map_abs(ABS_RUDDER); break;
531 case 0xbb: map_abs(ABS_THROTTLE); break;
532 case 0xc4: map_abs(ABS_GAS); break;
533 case 0xc5: map_abs(ABS_BRAKE); break;
534 case 0xc8: map_abs(ABS_WHEEL); break;
535 default: goto ignore;
536 }
537 break;
538
539 case HID_UP_GENDESK:
540 if ((usage->hid & 0xf0) == 0x80) { /* SystemControl */
541 switch (usage->hid & 0xf) {
542 case 0x1: map_key_clear(KEY_POWER); break;
543 case 0x2: map_key_clear(KEY_SLEEP); break;
544 case 0x3: map_key_clear(KEY_WAKEUP); break;
437f3b19
JW		 545 case 0x4: map_key_clear(KEY_CONTEXT_MENU); break;
546 case 0x5: map_key_clear(KEY_MENU); break;
547 case 0x6: map_key_clear(KEY_PROG1); break;
548 case 0x7: map_key_clear(KEY_HELP); break;
549 case 0x8: map_key_clear(KEY_EXIT); break;
550 case 0x9: map_key_clear(KEY_SELECT); break;
551 case 0xa: map_key_clear(KEY_RIGHT); break;
552 case 0xb: map_key_clear(KEY_LEFT); break;
553 case 0xc: map_key_clear(KEY_UP); break;
554 case 0xd: map_key_clear(KEY_DOWN); break;
555 case 0xe: map_key_clear(KEY_POWER2); break;
556 case 0xf: map_key_clear(KEY_RESTART); break;
880d29f1 557 default: goto unknown;
dde5845a
JK		 558 }
559 break;
880d29f1 560 }
dde5845a 561
880d29f1 562 if ((usage->hid & 0xf0) == 0x90) { /* D-pad */
dde5845a 563 switch (usage->hid) {
880d29f1
JS		 564 case HID_GD_UP: usage->hat_dir = 1; break;
565 case HID_GD_DOWN: usage->hat_dir = 5; break;
566 case HID_GD_RIGHT: usage->hat_dir = 3; break;
567 case HID_GD_LEFT: usage->hat_dir = 7; break;
568 default: goto unknown;
dde5845a 569 }
880d29f1
JS		 570 if (field->dpad) {
571 map_abs(field->dpad);
572 goto ignore;
d4ae650a 573 }
880d29f1 574 map_abs(ABS_HAT0X);
dde5845a 575 break;
880d29f1 576 }
dde5845a 577
880d29f1
JS		 578 switch (usage->hid) {
579 /* These usage IDs map directly to the usage codes. */
580 case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
581 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
582 case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL:
583 if (field->flags & HID_MAIN_ITEM_RELATIVE)
584 map_rel(usage->hid & 0xf);
585 else
586 map_abs(usage->hid & 0xf);
587 break;
dde5845a 588
880d29f1
JS		 589 case HID_GD_HATSWITCH:
590 usage->hat_min = field->logical_minimum;
591 usage->hat_max = field->logical_maximum;
592 map_abs(ABS_HAT0X);
593 break;
dde5845a 594
880d29f1
JS		 595 case HID_GD_START: map_key_clear(BTN_START); break;
596 case HID_GD_SELECT: map_key_clear(BTN_SELECT); break;
dde5845a 597
880d29f1
JS		 598 default: goto unknown;
599 }
dde5845a 600
880d29f1
JS		 601 break;
602
603 case HID_UP_LED:
604 switch (usage->hid & 0xffff) { /* HID-Value: */
605 case 0x01: map_led (LED_NUML); break; /* "Num Lock" */
606 case 0x02: map_led (LED_CAPSL); break; /* "Caps Lock" */
607 case 0x03: map_led (LED_SCROLLL); break; /* "Scroll Lock" */
608 case 0x04: map_led (LED_COMPOSE); break; /* "Compose" */
609 case 0x05: map_led (LED_KANA); break; /* "Kana" */
610 case 0x27: map_led (LED_SLEEP); break; /* "Stand-By" */
611 case 0x4c: map_led (LED_SUSPEND); break; /* "System Suspend" */
612 case 0x09: map_led (LED_MUTE); break; /* "Mute" */
613 case 0x4b: map_led (LED_MISC); break; /* "Generic Indicator" */
614 case 0x19: map_led (LED_MAIL); break; /* "Message Waiting" */
615 case 0x4d: map_led (LED_CHARGING); break; /* "External Power Connected" */
616
617 default: goto ignore;
618 }
619 break;
620
621 case HID_UP_DIGITIZER:
622 switch (usage->hid & 0xff) {
8c8b01c3
FB		 623 case 0x00: /* Undefined */
624 goto ignore;
625
880d29f1
JS		 626 case 0x30: /* TipPressure */
627 if (!test_bit(BTN_TOUCH, input->keybit)) {
628 device->quirks |= HID_QUIRK_NOTOUCH;
629 set_bit(EV_KEY, input->evbit);
630 set_bit(BTN_TOUCH, input->keybit);
dde5845a 631 }
880d29f1 632 map_abs_clear(ABS_PRESSURE);
dde5845a
JK		 633 break;
634
880d29f1
JS		 635 case 0x32: /* InRange */
636 switch (field->physical & 0xff) {
637 case 0x21: map_key(BTN_TOOL_MOUSE); break;
638 case 0x22: map_key(BTN_TOOL_FINGER); break;
639 default: map_key(BTN_TOOL_PEN); break;
dde5845a
JK		 640 }
641 break;
642
880d29f1
JS		 643 case 0x3c: /* Invert */
644 map_key_clear(BTN_TOOL_RUBBER);
dde5845a
JK		 645 break;
646
b73b2da0
NK		 647 case 0x3d: /* X Tilt */
648 map_abs_clear(ABS_TILT_X);
649 break;
650
651 case 0x3e: /* Y Tilt */
652 map_abs_clear(ABS_TILT_Y);
653 break;
654
880d29f1
JS		 655 case 0x33: /* Touch */
656 case 0x42: /* TipSwitch */
657 case 0x43: /* TipSwitch2 */
658 device->quirks &= ~HID_QUIRK_NOTOUCH;
659 map_key_clear(BTN_TOUCH);
660 break;
dde5845a 661
880d29f1
JS		 662 case 0x44: /* BarrelSwitch */
663 map_key_clear(BTN_STYLUS);
664 break;
dde5845a 665
50b63697
NK		 666 case 0x46: /* TabletPick */
667 map_key_clear(BTN_STYLUS2);
668 break;
669
880d29f1
JS		 670 default: goto unknown;
671 }
672 break;
673
437f3b19 674 case HID_UP_CONSUMER: /* USB HUT v1.12, pages 75-84 */
880d29f1
JS		 675 switch (usage->hid & HID_USAGE) {
676 case 0x000: goto ignore;
437f3b19
JW		 677 case 0x030: map_key_clear(KEY_POWER); break;
678 case 0x031: map_key_clear(KEY_RESTART); break;
679 case 0x032: map_key_clear(KEY_SLEEP); break;
880d29f1 680 case 0x034: map_key_clear(KEY_SLEEP); break;
437f3b19 681 case 0x035: map_key_clear(KEY_KBDILLUMTOGGLE); break;
880d29f1
JS		 682 case 0x036: map_key_clear(BTN_MISC); break;
683
437f3b19
JW		 684 case 0x040: map_key_clear(KEY_MENU); break; /* Menu */
685 case 0x041: map_key_clear(KEY_SELECT); break; /* Menu Pick */
686 case 0x042: map_key_clear(KEY_UP); break; /* Menu Up */
687 case 0x043: map_key_clear(KEY_DOWN); break; /* Menu Down */
688 case 0x044: map_key_clear(KEY_LEFT); break; /* Menu Left */
689 case 0x045: map_key_clear(KEY_RIGHT); break; /* Menu Right */
690 case 0x046: map_key_clear(KEY_ESC); break; /* Menu Escape */
691 case 0x047: map_key_clear(KEY_KPPLUS); break; /* Menu Value Increase */
692 case 0x048: map_key_clear(KEY_KPMINUS); break; /* Menu Value Decrease */
693
694 case 0x060: map_key_clear(KEY_INFO); break; /* Data On Screen */
695 case 0x061: map_key_clear(KEY_SUBTITLE); break; /* Closed Caption */
696 case 0x063: map_key_clear(KEY_VCR); break; /* VCR/TV */
697 case 0x065: map_key_clear(KEY_CAMERA); break; /* Snapshot */
698 case 0x069: map_key_clear(KEY_RED); break;
699 case 0x06a: map_key_clear(KEY_GREEN); break;
700 case 0x06b: map_key_clear(KEY_BLUE); break;
701 case 0x06c: map_key_clear(KEY_YELLOW); break;
702 case 0x06d: map_key_clear(KEY_ZOOM); break;
703
704 case 0x082: map_key_clear(KEY_VIDEO_NEXT); break;
880d29f1 705 case 0x083: map_key_clear(KEY_LAST); break;
437f3b19 706 case 0x084: map_key_clear(KEY_ENTER); break;
880d29f1
JS		 707 case 0x088: map_key_clear(KEY_PC); break;
708 case 0x089: map_key_clear(KEY_TV); break;
709 case 0x08a: map_key_clear(KEY_WWW); break;
710 case 0x08b: map_key_clear(KEY_DVD); break;
711 case 0x08c: map_key_clear(KEY_PHONE); break;
712 case 0x08d: map_key_clear(KEY_PROGRAM); break;
713 case 0x08e: map_key_clear(KEY_VIDEOPHONE); break;
714 case 0x08f: map_key_clear(KEY_GAMES); break;
715 case 0x090: map_key_clear(KEY_MEMO); break;
716 case 0x091: map_key_clear(KEY_CD); break;
717 case 0x092: map_key_clear(KEY_VCR); break;
718 case 0x093: map_key_clear(KEY_TUNER); break;
719 case 0x094: map_key_clear(KEY_EXIT); break;
720 case 0x095: map_key_clear(KEY_HELP); break;
721 case 0x096: map_key_clear(KEY_TAPE); break;
722 case 0x097: map_key_clear(KEY_TV2); break;
723 case 0x098: map_key_clear(KEY_SAT); break;
724 case 0x09a: map_key_clear(KEY_PVR); break;
725
726 case 0x09c: map_key_clear(KEY_CHANNELUP); break;
727 case 0x09d: map_key_clear(KEY_CHANNELDOWN); break;
728 case 0x0a0: map_key_clear(KEY_VCR2); break;
729
730 case 0x0b0: map_key_clear(KEY_PLAY); break;
731 case 0x0b1: map_key_clear(KEY_PAUSE); break;
732 case 0x0b2: map_key_clear(KEY_RECORD); break;
733 case 0x0b3: map_key_clear(KEY_FASTFORWARD); break;
734 case 0x0b4: map_key_clear(KEY_REWIND); break;
735 case 0x0b5: map_key_clear(KEY_NEXTSONG); break;
736 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG); break;
737 case 0x0b7: map_key_clear(KEY_STOPCD); break;
738 case 0x0b8: map_key_clear(KEY_EJECTCD); break;
739 case 0x0bc: map_key_clear(KEY_MEDIA_REPEAT); break;
437f3b19
JW		 740 case 0x0b9: map_key_clear(KEY_SHUFFLE); break;
741 case 0x0bf: map_key_clear(KEY_SLOW); break;
880d29f1
JS		 742
743 case 0x0cd: map_key_clear(KEY_PLAYPAUSE); break;
744 case 0x0e0: map_abs_clear(ABS_VOLUME); break;
745 case 0x0e2: map_key_clear(KEY_MUTE); break;
746 case 0x0e5: map_key_clear(KEY_BASSBOOST); break;
747 case 0x0e9: map_key_clear(KEY_VOLUMEUP); break;
748 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN); break;
437f3b19 749 case 0x0f5: map_key_clear(KEY_SLOW); break;
880d29f1
JS		 750
751 case 0x182: map_key_clear(KEY_BOOKMARKS); break;
752 case 0x183: map_key_clear(KEY_CONFIG); break;
753 case 0x184: map_key_clear(KEY_WORDPROCESSOR); break;
754 case 0x185: map_key_clear(KEY_EDITOR); break;
755 case 0x186: map_key_clear(KEY_SPREADSHEET); break;
756 case 0x187: map_key_clear(KEY_GRAPHICSEDITOR); break;
757 case 0x188: map_key_clear(KEY_PRESENTATION); break;
758 case 0x189: map_key_clear(KEY_DATABASE); break;
759 case 0x18a: map_key_clear(KEY_MAIL); break;
760 case 0x18b: map_key_clear(KEY_NEWS); break;
761 case 0x18c: map_key_clear(KEY_VOICEMAIL); break;
762 case 0x18d: map_key_clear(KEY_ADDRESSBOOK); break;
763 case 0x18e: map_key_clear(KEY_CALENDAR); break;
764 case 0x191: map_key_clear(KEY_FINANCE); break;
765 case 0x192: map_key_clear(KEY_CALC); break;
437f3b19 766 case 0x193: map_key_clear(KEY_PLAYER); break;
880d29f1
JS		 767 case 0x194: map_key_clear(KEY_FILE); break;
768 case 0x196: map_key_clear(KEY_WWW); break;
0690535d 769 case 0x199: map_key_clear(KEY_CHAT); break;
880d29f1
JS		 770 case 0x19c: map_key_clear(KEY_LOGOFF); break;
771 case 0x19e: map_key_clear(KEY_COFFEE); break;
772 case 0x1a6: map_key_clear(KEY_HELP); break;
773 case 0x1a7: map_key_clear(KEY_DOCUMENTS); break;
774 case 0x1ab: map_key_clear(KEY_SPELLCHECK); break;
437f3b19
JW		 775 case 0x1ae: map_key_clear(KEY_KEYBOARD); break;
776 case 0x1b6: map_key_clear(KEY_IMAGES); break;
777 case 0x1b7: map_key_clear(KEY_AUDIO); break;
778 case 0x1b8: map_key_clear(KEY_VIDEO); break;
880d29f1
JS		 779 case 0x1bc: map_key_clear(KEY_MESSENGER); break;
780 case 0x1bd: map_key_clear(KEY_INFO); break;
781 case 0x201: map_key_clear(KEY_NEW); break;
782 case 0x202: map_key_clear(KEY_OPEN); break;
783 case 0x203: map_key_clear(KEY_CLOSE); break;
784 case 0x204: map_key_clear(KEY_EXIT); break;
785 case 0x207: map_key_clear(KEY_SAVE); break;
786 case 0x208: map_key_clear(KEY_PRINT); break;
787 case 0x209: map_key_clear(KEY_PROPS); break;
788 case 0x21a: map_key_clear(KEY_UNDO); break;
789 case 0x21b: map_key_clear(KEY_COPY); break;
790 case 0x21c: map_key_clear(KEY_CUT); break;
791 case 0x21d: map_key_clear(KEY_PASTE); break;
792 case 0x21f: map_key_clear(KEY_FIND); break;
793 case 0x221: map_key_clear(KEY_SEARCH); break;
794 case 0x222: map_key_clear(KEY_GOTO); break;
795 case 0x223: map_key_clear(KEY_HOMEPAGE); break;
796 case 0x224: map_key_clear(KEY_BACK); break;
797 case 0x225: map_key_clear(KEY_FORWARD); break;
798 case 0x226: map_key_clear(KEY_STOP); break;
799 case 0x227: map_key_clear(KEY_REFRESH); break;
800 case 0x22a: map_key_clear(KEY_BOOKMARKS); break;
801 case 0x22d: map_key_clear(KEY_ZOOMIN); break;
802 case 0x22e: map_key_clear(KEY_ZOOMOUT); break;
803 case 0x22f: map_key_clear(KEY_ZOOMRESET); break;
804 case 0x233: map_key_clear(KEY_SCROLLUP); break;
805 case 0x234: map_key_clear(KEY_SCROLLDOWN); break;
806 case 0x238: map_rel(REL_HWHEEL); break;
437f3b19 807 case 0x23d: map_key_clear(KEY_EDIT); break;
880d29f1 808 case 0x25f: map_key_clear(KEY_CANCEL); break;
437f3b19
JW		 809 case 0x269: map_key_clear(KEY_INSERT); break;
810 case 0x26a: map_key_clear(KEY_DELETE); break;
880d29f1
JS		 811 case 0x279: map_key_clear(KEY_REDO); break;
812
813 case 0x289: map_key_clear(KEY_REPLY); break;
814 case 0x28b: map_key_clear(KEY_FORWARDMAIL); break;
815 case 0x28c: map_key_clear(KEY_SEND); break;
816
817 default: goto ignore;
818 }
819 break;
820
4f5ca836 821 case HID_UP_GENDEVCTRLS:
2f2e3f6d 822 if (hidinput_setup_battery(device, HID_INPUT_REPORT, field))
4f5ca836 823 goto ignore;
2f2e3f6d 824 else
4f5ca836
JF		 825 goto unknown;
826 break;
827
880d29f1
JS		 828 case HID_UP_HPVENDOR: /* Reported on a Dutch layout HP5308 */
829 set_bit(EV_REP, input->evbit);
830 switch (usage->hid & HID_USAGE) {
831 case 0x021: map_key_clear(KEY_PRINT); break;
832 case 0x070: map_key_clear(KEY_HP); break;
833 case 0x071: map_key_clear(KEY_CAMERA); break;
834 case 0x072: map_key_clear(KEY_SOUND); break;
835 case 0x073: map_key_clear(KEY_QUESTION); break;
836 case 0x080: map_key_clear(KEY_EMAIL); break;
837 case 0x081: map_key_clear(KEY_CHAT); break;
838 case 0x082: map_key_clear(KEY_SEARCH); break;
839 case 0x083: map_key_clear(KEY_CONNECT); break;
840 case 0x084: map_key_clear(KEY_FINANCE); break;
841 case 0x085: map_key_clear(KEY_SPORT); break;
842 case 0x086: map_key_clear(KEY_SHOP); break;
929578ab
KYL		 843 default: goto ignore;
844 }
845 break;
846
847 case HID_UP_HPVENDOR2:
848 set_bit(EV_REP, input->evbit);
849 switch (usage->hid & HID_USAGE) {
850 case 0x003: map_key_clear(KEY_BRIGHTNESSDOWN); break;
851 case 0x004: map_key_clear(KEY_BRIGHTNESSUP); break;
880d29f1
JS		 852 default: goto ignore;
853 }
854 break;
dde5845a 855
880d29f1
JS		 856 case HID_UP_MSVENDOR:
857 goto ignore;
dde5845a 858
880d29f1
JS		 859 case HID_UP_CUSTOM: /* Reported on Logitech and Apple USB keyboards */
860 set_bit(EV_REP, input->evbit);
861 goto ignore;
dde5845a 862
880d29f1
JS		 863 case HID_UP_LOGIVENDOR:
864 goto ignore;
fc99f22c 865
880d29f1
JS		 866 case HID_UP_PID:
867 switch (usage->hid & HID_USAGE) {
868 case 0xa4: map_key_clear(BTN_DEAD); break;
869 default: goto ignore;
870 }
871 break;
dde5845a 872
880d29f1
JS		 873 default:
874 unknown:
875 if (field->report_size == 1) {
876 if (field->report->type == HID_OUTPUT_REPORT) {
877 map_led(LED_MISC);
dde5845a
JK		 878 break;
879 }
880d29f1 880 map_key(BTN_MISC);
dde5845a 881 break;
880d29f1
JS		 882 }
883 if (field->flags & HID_MAIN_ITEM_RELATIVE) {
884 map_rel(REL_MISC);
885 break;
886 }
887 map_abs(ABS_MISC);
888 break;
dde5845a
JK		 889 }
890
10bd065f 891mapped:
c500c971
JS		 892 if (device->driver->input_mapped && device->driver->input_mapped(device,
893 hidinput, field, usage, &bit, &max) < 0)
894 goto ignore;
895
dde5845a
JK		 896 set_bit(usage->type, input->evbit);
897
898 while (usage->code <= max && test_and_set_bit(usage->code, bit))
899 usage->code = find_next_zero_bit(bit, max + 1, usage->code);
900
901 if (usage->code > max)
902 goto ignore;
903
904
905 if (usage->type == EV_ABS) {
906
907 int a = field->logical_minimum;
908 int b = field->logical_maximum;
909
910 if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
911 a = field->logical_minimum = 0;
912 b = field->logical_maximum = 255;
913 }
914
915 if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
916 input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
917 else input_set_abs_params(input, usage->code, a, b, 0, 0);
918
4ea6e4ff
NK		 919 input_abs_set_res(input, usage->code,
920 hidinput_calc_abs_res(field, usage->code));
921
6967b4d9
HR		 922 /* use a larger default input buffer for MT devices */
923 if (usage->code == ABS_MT_POSITION_X && input->hint_events_per_packet == 0)
924 input_set_events_per_packet(input, 60);
dde5845a
JK		 925 }
926
927 if (usage->type == EV_ABS &&
928 (usage->hat_min < usage->hat_max || usage->hat_dir)) {
929 int i;
930 for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
931 input_set_abs_params(input, i, -1, 1, 0, 0);
932 set_bit(i, input->absbit);
933 }
934 if (usage->hat_dir && !field->dpad)
935 field->dpad = usage->code;
936 }
937
2c1d8aea
JK		 938 /* for those devices which produce Consumer volume usage as relative,
939 * we emulate pressing volumeup/volumedown appropriate number of times
940 * in hidinput_hid_event()
941 */
942 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
943 (usage->code == ABS_VOLUME)) {
944 set_bit(KEY_VOLUMEUP, input->keybit);
945 set_bit(KEY_VOLUMEDOWN, input->keybit);
946 }
947
c01d50d1
JK		 948 if (usage->type == EV_KEY) {
949 set_bit(EV_MSC, input->evbit);
950 set_bit(MSC_SCAN, input->mscbit);
951 }
952
dde5845a 953ignore:
dde5845a 954 return;
a635f9dd 955
dde5845a
JK		 956}
957
958void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
959{
960 struct input_dev *input;
b4482a4b 961 unsigned *quirks = &hid->quirks;
dde5845a
JK		 962
963 if (!field->hidinput)
964 return;
965
966 input = field->hidinput->input;
967
968 if (!usage->type)
969 return;
970
dde5845a
JK		 971 if (usage->hat_min < usage->hat_max || usage->hat_dir) {
972 int hat_dir = usage->hat_dir;
973 if (!hat_dir)
974 hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
975 if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
976 input_event(input, usage->type, usage->code , hid_hat_to_axis[hat_dir].x);
fc99f22c
DM		 977 input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
978 return;
979 }
dde5845a
JK		 980
981 if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */
982 *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
983 return;
984 }
985
986 if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */
987 if (value) {
988 input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
989 return;
990 }
991 input_event(input, usage->type, usage->code, 0);
992 input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
993 return;
994 }
995
996 if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */
997 int a = field->logical_minimum;
998 int b = field->logical_maximum;
999 input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3));
1000 }
1001
1002 if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
58037eb9 1003 dbg_hid("Maximum Effects - %d\n",value);
dde5845a
JK		 1004 return;
1005 }
1006
1007 if (usage->hid == (HID_UP_PID | 0x7fUL)) {
58037eb9 1008 dbg_hid("PID Pool Report\n");
dde5845a
JK		 1009 return;
1010 }
1011
1012 if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
1013 return;
1014
2c1d8aea
JK		 1015 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
1016 (usage->code == ABS_VOLUME)) {
1017 int count = abs(value);
1018 int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN;
1019 int i;
1020
1021 for (i = 0; i < count; i++) {
1022 input_event(input, EV_KEY, direction, 1);
1023 input_sync(input);
1024 input_event(input, EV_KEY, direction, 0);
1025 input_sync(input);
1026 }
1027 return;
1028 }
1029
883e0e36
NK		 1030 /*
1031 * Ignore out-of-range values as per HID specification,
1032 * section 5.10 and 6.2.25
1033 */
1034 if ((field->flags & HID_MAIN_ITEM_VARIABLE) &&
1035 (value < field->logical_minimum ||
1036 value > field->logical_maximum)) {
6da70669
JK		 1037 dbg_hid("Ignoring out-of-range value %x\n", value);
1038 return;
1039 }
1040
c01d50d1
JK		 1041 /* report the usage code as scancode if the key status has changed */
1042 if (usage->type == EV_KEY && !!test_bit(usage->code, input->key) != value)
1043 input_event(input, EV_MSC, MSC_SCAN, usage->hid);
1fe8736d 1044
dde5845a
JK		 1045 input_event(input, usage->type, usage->code, value);
1046
1047 if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY))
1048 input_event(input, usage->type, usage->code, 0);
1049}
1050
1051void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
1052{
1053 struct hid_input *hidinput;
1054
24750f3e
HR		 1055 if (hid->quirks & HID_QUIRK_NO_INPUT_SYNC)
1056 return;
1057
dde5845a
JK		 1058 list_for_each_entry(hidinput, &hid->inputs, list)
1059 input_sync(hidinput->input);
1060}
229695e5 1061EXPORT_SYMBOL_GPL(hidinput_report_event);
dde5845a 1062
229695e5 1063int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
dde5845a
JK		 1064{
1065 struct hid_report *report;
1066 int i, j;
1067
1068 list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
1069 for (i = 0; i < report->maxfield; i++) {
1070 *field = report->field[i];
1071 for (j = 0; j < (*field)->maxusage; j++)
1072 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
1073 return j;
1074 }
1075 }
1076 return -1;
1077}
229695e5 1078EXPORT_SYMBOL_GPL(hidinput_find_field);
dde5845a 1079
4371ea82
DK		 1080struct hid_field *hidinput_get_led_field(struct hid_device *hid)
1081{
1082 struct hid_report *report;
1083 struct hid_field *field;
1084 int i, j;
1085
1086 list_for_each_entry(report,
1087 &hid->report_enum[HID_OUTPUT_REPORT].report_list,
1088 list) {
1089 for (i = 0; i < report->maxfield; i++) {
1090 field = report->field[i];
1091 for (j = 0; j < field->maxusage; j++)
1092 if (field->usage[j].type == EV_LED)
1093 return field;
1094 }
1095 }
1096 return NULL;
1097}
1098EXPORT_SYMBOL_GPL(hidinput_get_led_field);
1099
1100unsigned int hidinput_count_leds(struct hid_device *hid)
1101{
1102 struct hid_report *report;
1103 struct hid_field *field;
1104 int i, j;
1105 unsigned int count = 0;
1106
1107 list_for_each_entry(report,
1108 &hid->report_enum[HID_OUTPUT_REPORT].report_list,
1109 list) {
1110 for (i = 0; i < report->maxfield; i++) {
1111 field = report->field[i];
1112 for (j = 0; j < field->maxusage; j++)
1113 if (field->usage[j].type == EV_LED &&
1114 field->value[j])
1115 count += 1;
1116 }
1117 }
1118 return count;
1119}
1120EXPORT_SYMBOL_GPL(hidinput_count_leds);
1121
7c379146
JK		 1122static int hidinput_open(struct input_dev *dev)
1123{
e0712985
DT		 1124 struct hid_device *hid = input_get_drvdata(dev);
1125
5bea7660 1126 return hid_hw_open(hid);
7c379146
JK		 1127}
1128
1129static void hidinput_close(struct input_dev *dev)
1130{
e0712985
DT		 1131 struct hid_device *hid = input_get_drvdata(dev);
1132
5bea7660 1133 hid_hw_close(hid);
7c379146
JK		 1134}
1135
f635bd11
HR		 1136static void report_features(struct hid_device *hid)
1137{
1138 struct hid_driver *drv = hid->driver;
1139 struct hid_report_enum *rep_enum;
1140 struct hid_report *rep;
1141 int i, j;
1142
f635bd11
HR		 1143 rep_enum = &hid->report_enum[HID_FEATURE_REPORT];
1144 list_for_each_entry(rep, &rep_enum->report_list, list)
1145 for (i = 0; i < rep->maxfield; i++)
c5a92aa3
DN		 1146 for (j = 0; j < rep->field[i]->maxusage; j++) {
1147 /* Verify if Battery Strength feature is available */
2f2e3f6d 1148 hidinput_setup_battery(hid, HID_FEATURE_REPORT, rep->field[i]);
c5a92aa3
DN		 1149
1150 if (drv->feature_mapping)
1151 drv->feature_mapping(hid, rep->field[i],
1152 rep->field[i]->usage + j);
1153 }
f635bd11
HR		 1154}
1155
dde5845a
JK		 1156/*
1157 * Register the input device; print a message.
1158 * Configure the input layer interface
1159 * Read all reports and initialize the absolute field values.
1160 */
1161
93c10132 1162int hidinput_connect(struct hid_device *hid, unsigned int force)
dde5845a 1163{
9ebf3d76 1164 struct hid_driver *drv = hid->driver;
dde5845a
JK		 1165 struct hid_report *report;
1166 struct hid_input *hidinput = NULL;
1167 struct input_dev *input_dev;
1168 int i, j, k;
1169
1170 INIT_LIST_HEAD(&hid->inputs);
1171
93c10132
JS		 1172 if (!force) {
1173 for (i = 0; i < hid->maxcollection; i++) {
1174 struct hid_collection *col = &hid->collection[i];
1175 if (col->type == HID_COLLECTION_APPLICATION ||
1176 col->type == HID_COLLECTION_PHYSICAL)
1177 if (IS_INPUT_APPLICATION(col->usage))
1178 break;
1179 }
dde5845a 1180
93c10132
JS		 1181 if (i == hid->maxcollection)
1182 return -1;
1183 }
dde5845a 1184
f635bd11
HR		 1185 report_features(hid);
1186
1187 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
0d2689c0
BT		 1188 if (k == HID_OUTPUT_REPORT &&
1189 hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
1190 continue;
5556feae 1191
dde5845a
JK		 1192 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
1193
1194 if (!report->maxfield)
1195 continue;
1196
1197 if (!hidinput) {
1198 hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
1199 input_dev = input_allocate_device();
1200 if (!hidinput || !input_dev) {
1201 kfree(hidinput);
1202 input_free_device(input_dev);
4291ee30 1203 hid_err(hid, "Out of memory during hid input probe\n");
368d290b 1204 goto out_unwind;
dde5845a
JK		 1205 }
1206
e0712985 1207 input_set_drvdata(input_dev, hid);
c500c971
JS		 1208 input_dev->event =
1209 hid->ll_driver->hidinput_input_event;
7c379146
JK		 1210 input_dev->open = hidinput_open;
1211 input_dev->close = hidinput_close;
aebd636b
DT		 1212 input_dev->setkeycode = hidinput_setkeycode;
1213 input_dev->getkeycode = hidinput_getkeycode;
dde5845a
JK		 1214
1215 input_dev->name = hid->name;
1216 input_dev->phys = hid->phys;
1217 input_dev->uniq = hid->uniq;
229695e5
JK		 1218 input_dev->id.bustype = hid->bus;
1219 input_dev->id.vendor = hid->vendor;
1220 input_dev->id.product = hid->product;
1221 input_dev->id.version = hid->version;
85cdaf52 1222 input_dev->dev.parent = hid->dev.parent;
dde5845a
JK		 1223 hidinput->input = input_dev;
1224 list_add_tail(&hidinput->list, &hid->inputs);
1225 }
1226
1227 for (i = 0; i < report->maxfield; i++)
1228 for (j = 0; j < report->field[i]->maxusage; j++)
1229 hidinput_configure_usage(hidinput, report->field[i],
1230 report->field[i]->usage + j);
1231
1232 if (hid->quirks & HID_QUIRK_MULTI_INPUT) {
1233 /* This will leave hidinput NULL, so that it
1234 * allocates another one if we have more inputs on
1235 * the same interface. Some devices (e.g. Happ's
1236 * UGCI) cram a lot of unrelated inputs into the
1237 * same interface. */
1238 hidinput->report = report;
9ebf3d76
HR		 1239 if (drv->input_configured)
1240 drv->input_configured(hid, hidinput);
368d290b
DH		 1241 if (input_register_device(hidinput->input))
1242 goto out_cleanup;
dde5845a
JK		 1243 hidinput = NULL;
1244 }
1245 }
0d2689c0 1246 }
dde5845a 1247
9ebf3d76
HR		 1248 if (hidinput) {
1249 if (drv->input_configured)
1250 drv->input_configured(hid, hidinput);
1251 if (input_register_device(hidinput->input))
1252 goto out_cleanup;
1253 }
dde5845a
JK		 1254
1255 return 0;
368d290b
DH		 1256
1257out_cleanup:
d9236303 1258 list_del(&hidinput->list);
368d290b
DH		 1259 input_free_device(hidinput->input);
1260 kfree(hidinput);
1261out_unwind:
1262 /* unwind the ones we already registered */
1263 hidinput_disconnect(hid);
1264
1265 return -1;
dde5845a 1266}
229695e5 1267EXPORT_SYMBOL_GPL(hidinput_connect);
dde5845a
JK		 1268
1269void hidinput_disconnect(struct hid_device *hid)
1270{
1271 struct hid_input *hidinput, *next;
1272
4f5ca836
JF		 1273 hidinput_cleanup_battery(hid);
1274
dde5845a
JK		 1275 list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
1276 list_del(&hidinput->list);
1277 input_unregister_device(hidinput->input);
1278 kfree(hidinput);
1279 }
1280}
229695e5
JK		 1281EXPORT_SYMBOL_GPL(hidinput_disconnect);
1282
Linux 6.x block layer and io_uring tree(s)