projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
[deliverable/linux.git] / drivers / hid / hid-input.c
CommitLineData
dde5845a 1/*
dde5845a 2 * Copyright (c) 2000-2001 Vojtech Pavlik
7d39e849 3 * Copyright (c) 2006-2010 Jiri Kosina
dde5845a
JK		 4 *
5 * HID to Linux Input mapping
6 */
7
8/*
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 *
23 * Should you need to contact me, the author, you can do so either by
24 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
25 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
26 */
27
28#include <linux/module.h>
29#include <linux/slab.h>
30#include <linux/kernel.h>
dde5845a 31
dde5845a 32#include <linux/hid.h>
c080d89a 33#include <linux/hid-debug.h>
dde5845a 34
bbc21cfd
JF		 35#include "hid-ids.h"
36
dde5845a
JK		 37#define unk KEY_UNKNOWN
38
39static const unsigned char hid_keyboard[256] = {
40 0, 0, 0, 0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
41 50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44, 2, 3,
42 4, 5, 6, 7, 8, 9, 10, 11, 28, 1, 14, 15, 57, 12, 13, 26,
43 27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
44 65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
45 105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
46 72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190,
47 191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113,
48 115,114,unk,unk,unk,121,unk, 89, 93,124, 92, 94, 95,unk,unk,unk,
437f3b19 49 122,123, 90, 91, 85,unk,unk,unk,unk,unk,unk,unk,111,unk,unk,unk,
dde5845a 50 unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
1fe8736d 51 unk,unk,unk,unk,unk,unk,179,180,unk,unk,unk,unk,unk,unk,unk,unk,
dde5845a 52 unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
437f3b19 53 unk,unk,unk,unk,unk,unk,unk,unk,111,unk,unk,unk,unk,unk,unk,unk,
dde5845a
JK		 54 29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
55 150,158,159,128,136,177,178,176,142,152,173,140,unk,unk,unk,unk
56};
57
58static const struct {
59 __s32 x;
60 __s32 y;
61} hid_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
62
022e8c4d
JS		 63#define map_abs(c) hid_map_usage(hidinput, usage, &bit, &max, EV_ABS, (c))
64#define map_rel(c) hid_map_usage(hidinput, usage, &bit, &max, EV_REL, (c))
65#define map_key(c) hid_map_usage(hidinput, usage, &bit, &max, EV_KEY, (c))
66#define map_led(c) hid_map_usage(hidinput, usage, &bit, &max, EV_LED, (c))
dde5845a 67
022e8c4d
JS		 68#define map_abs_clear(c) hid_map_usage_clear(hidinput, usage, &bit, \
69 &max, EV_ABS, (c))
70#define map_key_clear(c) hid_map_usage_clear(hidinput, usage, &bit, \
71 &max, EV_KEY, (c))
dde5845a 72
a0bf0ea8
DT		 73static bool match_scancode(struct hid_usage *usage,
74 unsigned int cur_idx, unsigned int scancode)
fe7ba31f 75{
a0bf0ea8 76 return (usage->hid & (HID_USAGE_PAGE | HID_USAGE)) == scancode;
fe7ba31f
MR		 77}
78
a0bf0ea8
DT		 79static bool match_keycode(struct hid_usage *usage,
80 unsigned int cur_idx, unsigned int keycode)
fe7ba31f 81{
f5854fad
DT		 82 /*
83 * We should exclude unmapped usages when doing lookup by keycode.
84 */
85 return (usage->type == EV_KEY && usage->code == keycode);
a0bf0ea8 86}
58b93995 87
a0bf0ea8
DT		 88static bool match_index(struct hid_usage *usage,
89 unsigned int cur_idx, unsigned int idx)
90{
91 return cur_idx == idx;
fe7ba31f
MR		 92}
93
a0bf0ea8
DT		 94typedef bool (*hid_usage_cmp_t)(struct hid_usage *usage,
95 unsigned int cur_idx, unsigned int val);
96
fe7ba31f 97static struct hid_usage *hidinput_find_key(struct hid_device *hid,
a0bf0ea8
DT		 98 hid_usage_cmp_t match,
99 unsigned int value,
100 unsigned int *usage_idx)
fe7ba31f 101{
a0bf0ea8 102 unsigned int i, j, k, cur_idx = 0;
fe7ba31f
MR		 103 struct hid_report *report;
104 struct hid_usage *usage;
105
106 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
107 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
108 for (i = 0; i < report->maxfield; i++) {
a0bf0ea8 109 for (j = 0; j < report->field[i]->maxusage; j++) {
fe7ba31f 110 usage = report->field[i]->usage + j;
f5854fad 111 if (usage->type == EV_KEY || usage->type == 0) {
a0bf0ea8
DT		 112 if (match(usage, cur_idx, value)) {
113 if (usage_idx)
114 *usage_idx = cur_idx;
115 return usage;
116 }
117 cur_idx++;
118 }
fe7ba31f
MR		 119 }
120 }
121 }
122 }
123 return NULL;
124}
125
a0bf0ea8
DT		 126static struct hid_usage *hidinput_locate_usage(struct hid_device *hid,
127 const struct input_keymap_entry *ke,
128 unsigned int *index)
129{
130 struct hid_usage *usage;
131 unsigned int scancode;
132
133 if (ke->flags & INPUT_KEYMAP_BY_INDEX)
134 usage = hidinput_find_key(hid, match_index, ke->index, index);
135 else if (input_scancode_to_scalar(ke, &scancode) == 0)
136 usage = hidinput_find_key(hid, match_scancode, scancode, index);
137 else
138 usage = NULL;
139
140 return usage;
141}
142
58b93995 143static int hidinput_getkeycode(struct input_dev *dev,
a0bf0ea8 144 struct input_keymap_entry *ke)
fe7ba31f 145{
f202df60 146 struct hid_device *hid = input_get_drvdata(dev);
fe7ba31f 147 struct hid_usage *usage;
a0bf0ea8 148 unsigned int scancode, index;
77b29662 149
a0bf0ea8 150 usage = hidinput_locate_usage(hid, ke, &index);
fe7ba31f 151 if (usage) {
f5854fad
DT		 152 ke->keycode = usage->type == EV_KEY ?
153 usage->code : KEY_RESERVED;
a0bf0ea8
DT		 154 ke->index = index;
155 scancode = usage->hid & (HID_USAGE_PAGE | HID_USAGE);
156 ke->len = sizeof(scancode);
157 memcpy(ke->scancode, &scancode, sizeof(scancode));
fe7ba31f
MR		 158 return 0;
159 }
a0bf0ea8 160
fe7ba31f
MR		 161 return -EINVAL;
162}
163
58b93995 164static int hidinput_setkeycode(struct input_dev *dev,
a0bf0ea8
DT		 165 const struct input_keymap_entry *ke,
166 unsigned int *old_keycode)
fe7ba31f 167{
f202df60 168 struct hid_device *hid = input_get_drvdata(dev);
fe7ba31f 169 struct hid_usage *usage;
77b29662 170
a0bf0ea8 171 usage = hidinput_locate_usage(hid, ke, NULL);
fe7ba31f 172 if (usage) {
f5854fad
DT		 173 *old_keycode = usage->type == EV_KEY ?
174 usage->code : KEY_RESERVED;
a0bf0ea8 175 usage->code = ke->keycode;
77b29662 176
a0bf0ea8 177 clear_bit(*old_keycode, dev->keybit);
fe7ba31f 178 set_bit(usage->code, dev->keybit);
587d1452 179 dbg_hid("Assigned keycode %d to HID usage code %x\n",
a0bf0ea8
DT		 180 usage->code, usage->hid);
181
182 /*
183 * Set the keybit for the old keycode if the old keycode is used
184 * by another key
185 */
186 if (hidinput_find_key(hid, match_keycode, *old_keycode, NULL))
187 set_bit(*old_keycode, dev->keybit);
77b29662 188
fe7ba31f
MR		 189 return 0;
190 }
77b29662 191
fe7ba31f
MR		 192 return -EINVAL;
193}
194
ad0e669b 195
4ea6e4ff
NK		 196/**
197 * hidinput_calc_abs_res - calculate an absolute axis resolution
198 * @field: the HID report field to calculate resolution for
199 * @code: axis code
200 *
201 * The formula is:
202 * (logical_maximum - logical_minimum)
203 * resolution = ----------------------------------------------------------
204 * (physical_maximum - physical_minimum) * 10 ^ unit_exponent
205 *
206 * as seen in the HID specification v1.11 6.2.2.7 Global Items.
207 *
83ed79c5
DT		 208 * Only exponent 1 length units are processed. Centimeters and inches are
209 * converted to millimeters. Degrees are converted to radians.
4ea6e4ff 210 */
37cf6e6f 211__s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code)
4ea6e4ff
NK		 212{
213 __s32 unit_exponent = field->unit_exponent;
214 __s32 logical_extents = field->logical_maximum -
215 field->logical_minimum;
216 __s32 physical_extents = field->physical_maximum -
217 field->physical_minimum;
218 __s32 prev;
219
220 /* Check if the extents are sane */
221 if (logical_extents <= 0 || physical_extents <= 0)
222 return 0;
223
224 /*
225 * Verify and convert units.
226 * See HID specification v1.11 6.2.2.7 Global Items for unit decoding
227 */
b73b2da0
NK		 228 switch (code) {
229 case ABS_X:
230 case ABS_Y:
231 case ABS_Z:
37cf6e6f
BT		 232 case ABS_MT_POSITION_X:
233 case ABS_MT_POSITION_Y:
234 case ABS_MT_TOOL_X:
235 case ABS_MT_TOOL_Y:
236 case ABS_MT_TOUCH_MAJOR:
237 case ABS_MT_TOUCH_MINOR:
ad0e669b 238 if (field->unit == 0x11) { /* If centimeters */
83ed79c5
DT		 239 /* Convert to millimeters */
240 unit_exponent += 1;
ad0e669b 241 } else if (field->unit == 0x13) { /* If inches */
83ed79c5
DT		 242 /* Convert to millimeters */
243 prev = physical_extents;
244 physical_extents *= 254;
245 if (physical_extents < prev)
4ea6e4ff 246 return 0;
83ed79c5 247 unit_exponent -= 1;
ad0e669b 248 } else {
4ea6e4ff
NK		 249 return 0;
250 }
b73b2da0
NK		 251 break;
252
253 case ABS_RX:
254 case ABS_RY:
255 case ABS_RZ:
256 case ABS_TILT_X:
257 case ABS_TILT_Y:
4ea6e4ff
NK		 258 if (field->unit == 0x14) { /* If degrees */
259 /* Convert to radians */
260 prev = logical_extents;
261 logical_extents *= 573;
262 if (logical_extents < prev)
263 return 0;
264 unit_exponent += 1;
265 } else if (field->unit != 0x12) { /* If not radians */
266 return 0;
267 }
b73b2da0
NK		 268 break;
269
270 default:
4ea6e4ff
NK		 271 return 0;
272 }
273
274 /* Apply negative unit exponent */
275 for (; unit_exponent < 0; unit_exponent++) {
276 prev = logical_extents;
277 logical_extents *= 10;
278 if (logical_extents < prev)
279 return 0;
280 }
281 /* Apply positive unit exponent */
282 for (; unit_exponent > 0; unit_exponent--) {
283 prev = physical_extents;
284 physical_extents *= 10;
285 if (physical_extents < prev)
286 return 0;
287 }
288
289 /* Calculate resolution */
ccdd6994 290 return DIV_ROUND_CLOSEST(logical_extents, physical_extents);
4ea6e4ff 291}
37cf6e6f 292EXPORT_SYMBOL_GPL(hidinput_calc_abs_res);
4ea6e4ff 293
4f5ca836
JF		 294#ifdef CONFIG_HID_BATTERY_STRENGTH
295static enum power_supply_property hidinput_battery_props[] = {
296 POWER_SUPPLY_PROP_PRESENT,
297 POWER_SUPPLY_PROP_ONLINE,
298 POWER_SUPPLY_PROP_CAPACITY,
299 POWER_SUPPLY_PROP_MODEL_NAME,
45d9c273
JF		 300 POWER_SUPPLY_PROP_STATUS,
301 POWER_SUPPLY_PROP_SCOPE,
4f5ca836
JF		 302};
303
bbc21cfd 304#define HID_BATTERY_QUIRK_PERCENT (1 << 0) /* always reports percent */
652aa6a9 305#define HID_BATTERY_QUIRK_FEATURE (1 << 1) /* ask for feature report */
bbc21cfd
JF		 306
307static const struct hid_device_id hid_battery_quirks[] = {
4cc85417
OG		 308 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
309 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO),
310 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
652aa6a9
JF		 311 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
312 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI),
313 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
0c47935c
DN		 314 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
315 USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI),
316 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
bbc21cfd
JF		 317 {}
318};
319
320static unsigned find_battery_quirk(struct hid_device *hdev)
321{
322 unsigned quirks = 0;
323 const struct hid_device_id *match;
324
325 match = hid_match_id(hdev, hid_battery_quirks);
326 if (match != NULL)
327 quirks = match->driver_data;
328
329 return quirks;
330}
331
4f5ca836
JF		 332static int hidinput_get_battery_property(struct power_supply *psy,
333 enum power_supply_property prop,
334 union power_supply_propval *val)
335{
336 struct hid_device *dev = container_of(psy, struct hid_device, battery);
337 int ret = 0;
6c2794a2 338 __u8 *buf;
4f5ca836
JF		 339
340 switch (prop) {
341 case POWER_SUPPLY_PROP_PRESENT:
342 case POWER_SUPPLY_PROP_ONLINE:
343 val->intval = 1;
344 break;
345
346 case POWER_SUPPLY_PROP_CAPACITY:
6c2794a2
JK		 347
348 buf = kmalloc(2 * sizeof(__u8), GFP_KERNEL);
349 if (!buf) {
350 ret = -ENOMEM;
351 break;
352 }
cafebc05
BT		 353 ret = hid_hw_raw_request(dev, dev->battery_report_id, buf, 2,
354 dev->battery_report_type,
355 HID_REQ_GET_REPORT);
652aa6a9
JF		 356
357 if (ret != 2) {
d0a934b7 358 ret = -ENODATA;
6c2794a2 359 kfree(buf);
c5a92aa3
DN		 360 break;
361 }
d0a934b7 362 ret = 0;
c5a92aa3 363
4f5ca836 364 if (dev->battery_min < dev->battery_max &&
bbc21cfd
JF		 365 buf[1] >= dev->battery_min &&
366 buf[1] <= dev->battery_max)
367 val->intval = (100 * (buf[1] - dev->battery_min)) /
4f5ca836 368 (dev->battery_max - dev->battery_min);
6c2794a2 369 kfree(buf);
4f5ca836
JF		 370 break;
371
372 case POWER_SUPPLY_PROP_MODEL_NAME:
373 val->strval = dev->name;
374 break;
375
c5a92aa3
DN		 376 case POWER_SUPPLY_PROP_STATUS:
377 val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
378 break;
379
45d9c273
JF		 380 case POWER_SUPPLY_PROP_SCOPE:
381 val->intval = POWER_SUPPLY_SCOPE_DEVICE;
382 break;
383
4f5ca836
JF		 384 default:
385 ret = -EINVAL;
386 break;
387 }
388
389 return ret;
390}
391
2f2e3f6d 392static bool hidinput_setup_battery(struct hid_device *dev, unsigned report_type, struct hid_field *field)
4f5ca836
JF		 393{
394 struct power_supply *battery = &dev->battery;
395 int ret;
bbc21cfd 396 unsigned quirks;
2f2e3f6d
JF		 397 s32 min, max;
398
399 if (field->usage->hid != HID_DC_BATTERYSTRENGTH)
400 return false; /* no match */
4f5ca836
JF		 401
402 if (battery->name != NULL)
2f2e3f6d 403 goto out; /* already initialized? */
4f5ca836
JF		 404
405 battery->name = kasprintf(GFP_KERNEL, "hid-%s-battery", dev->uniq);
406 if (battery->name == NULL)
2f2e3f6d 407 goto out;
4f5ca836
JF		 408
409 battery->type = POWER_SUPPLY_TYPE_BATTERY;
410 battery->properties = hidinput_battery_props;
411 battery->num_properties = ARRAY_SIZE(hidinput_battery_props);
412 battery->use_for_apm = 0;
413 battery->get_property = hidinput_get_battery_property;
414
bbc21cfd
JF		 415 quirks = find_battery_quirk(dev);
416
652aa6a9
JF		 417 hid_dbg(dev, "device %x:%x:%x %d quirks %d\n",
418 dev->bus, dev->vendor, dev->product, dev->version, quirks);
419
2f2e3f6d
JF		 420 min = field->logical_minimum;
421 max = field->logical_maximum;
422
bbc21cfd
JF		 423 if (quirks & HID_BATTERY_QUIRK_PERCENT) {
424 min = 0;
425 max = 100;
426 }
427
652aa6a9
JF		 428 if (quirks & HID_BATTERY_QUIRK_FEATURE)
429 report_type = HID_FEATURE_REPORT;
430
4f5ca836
JF		 431 dev->battery_min = min;
432 dev->battery_max = max;
fb8ac91b 433 dev->battery_report_type = report_type;
2f2e3f6d 434 dev->battery_report_id = field->report->id;
4f5ca836
JF		 435
436 ret = power_supply_register(&dev->dev, battery);
437 if (ret != 0) {
438 hid_warn(dev, "can't register power supply: %d\n", ret);
439 kfree(battery->name);
440 battery->name = NULL;
441 }
2f2e3f6d 442
45d9c273
JF		 443 power_supply_powers(battery, &dev->dev);
444
2f2e3f6d
JF		 445out:
446 return true;
4f5ca836
JF		 447}
448
449static void hidinput_cleanup_battery(struct hid_device *dev)
450{
451 if (!dev->battery.name)
452 return;
453
454 power_supply_unregister(&dev->battery);
455 kfree(dev->battery.name);
456 dev->battery.name = NULL;
457}
458#else /* !CONFIG_HID_BATTERY_STRENGTH */
2f2e3f6d
JF		 459static bool hidinput_setup_battery(struct hid_device *dev, unsigned report_type,
460 struct hid_field *field)
4f5ca836 461{
2f2e3f6d 462 return false;
4f5ca836
JF		 463}
464
465static void hidinput_cleanup_battery(struct hid_device *dev)
466{
467}
468#endif /* CONFIG_HID_BATTERY_STRENGTH */
469
dde5845a
JK		 470static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
471 struct hid_usage *usage)
472{
473 struct input_dev *input = hidinput->input;
e0712985 474 struct hid_device *device = input_get_drvdata(input);
3715ade9 475 int max = 0, code;
dde5845a
JK		 476 unsigned long *bit = NULL;
477
478 field->hidinput = hidinput;
479
dde5845a
JK		 480 if (field->flags & HID_MAIN_ITEM_CONSTANT)
481 goto ignore;
482
cc6b54aa
BT		 483 /* Ignore if report count is out of bounds. */
484 if (field->report_count < 1)
485 goto ignore;
486
82eb1219
JK		 487 /* only LED usages are supported in output fields */
488 if (field->report_type == HID_OUTPUT_REPORT &&
489 (usage->hid & HID_USAGE_PAGE) != HID_UP_LED) {
82eb1219
JK		 490 goto ignore;
491 }
492
c500c971
JS		 493 if (device->driver->input_mapping) {
494 int ret = device->driver->input_mapping(device, hidinput, field,
495 usage, &bit, &max);
496 if (ret > 0)
497 goto mapped;
498 if (ret < 0)
499 goto ignore;
500 }
501
dde5845a 502 switch (usage->hid & HID_USAGE_PAGE) {
880d29f1
JS		 503 case HID_UP_UNDEFINED:
504 goto ignore;
dde5845a 505
880d29f1
JS		 506 case HID_UP_KEYBOARD:
507 set_bit(EV_REP, input->evbit);
dde5845a 508
880d29f1
JS		 509 if ((usage->hid & HID_USAGE) < 256) {
510 if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
511 map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
512 } else
513 map_key(KEY_UNKNOWN);
dde5845a 514
880d29f1 515 break;
dde5845a 516
880d29f1 517 case HID_UP_BUTTON:
7f978b9b 518 code = ((usage->hid - 1) & HID_USAGE);
dde5845a 519
880d29f1
JS		 520 switch (field->application) {
521 case HID_GD_MOUSE:
1874542d 522 case HID_GD_POINTER: code += BTN_MOUSE; break;
cf2f765f 523 case HID_GD_JOYSTICK:
fc99f22c
DM		 524 if (code <= 0xf)
525 code += BTN_JOYSTICK;
526 else
f8e86d05
IR		 527 code += BTN_TRIGGER_HAPPY - 0x10;
528 break;
529 case HID_GD_GAMEPAD:
530 if (code <= 0xf)
531 code += BTN_GAMEPAD;
532 else
533 code += BTN_TRIGGER_HAPPY - 0x10;
fc99f22c 534 break;
880d29f1
JS		 535 default:
536 switch (field->physical) {
537 case HID_GD_MOUSE:
1874542d
FF		 538 case HID_GD_POINTER: code += BTN_MOUSE; break;
539 case HID_GD_JOYSTICK: code += BTN_JOYSTICK; break;
540 case HID_GD_GAMEPAD: code += BTN_GAMEPAD; break;
541 default: code += BTN_MISC;
dde5845a 542 }
880d29f1 543 }
dde5845a 544
880d29f1
JS		 545 map_key(code);
546 break;
547
548 case HID_UP_SIMULATION:
549 switch (usage->hid & 0xffff) {
550 case 0xba: map_abs(ABS_RUDDER); break;
551 case 0xbb: map_abs(ABS_THROTTLE); break;
552 case 0xc4: map_abs(ABS_GAS); break;
553 case 0xc5: map_abs(ABS_BRAKE); break;
554 case 0xc8: map_abs(ABS_WHEEL); break;
555 default: goto ignore;
556 }
557 break;
558
559 case HID_UP_GENDESK:
560 if ((usage->hid & 0xf0) == 0x80) { /* SystemControl */
561 switch (usage->hid & 0xf) {
562 case 0x1: map_key_clear(KEY_POWER); break;
563 case 0x2: map_key_clear(KEY_SLEEP); break;
564 case 0x3: map_key_clear(KEY_WAKEUP); break;
437f3b19
JW		 565 case 0x4: map_key_clear(KEY_CONTEXT_MENU); break;
566 case 0x5: map_key_clear(KEY_MENU); break;
567 case 0x6: map_key_clear(KEY_PROG1); break;
568 case 0x7: map_key_clear(KEY_HELP); break;
569 case 0x8: map_key_clear(KEY_EXIT); break;
570 case 0x9: map_key_clear(KEY_SELECT); break;
571 case 0xa: map_key_clear(KEY_RIGHT); break;
572 case 0xb: map_key_clear(KEY_LEFT); break;
573 case 0xc: map_key_clear(KEY_UP); break;
574 case 0xd: map_key_clear(KEY_DOWN); break;
575 case 0xe: map_key_clear(KEY_POWER2); break;
576 case 0xf: map_key_clear(KEY_RESTART); break;
880d29f1 577 default: goto unknown;
dde5845a
JK		 578 }
579 break;
880d29f1 580 }
dde5845a 581
880d29f1 582 if ((usage->hid & 0xf0) == 0x90) { /* D-pad */
dde5845a 583 switch (usage->hid) {
880d29f1
JS		 584 case HID_GD_UP: usage->hat_dir = 1; break;
585 case HID_GD_DOWN: usage->hat_dir = 5; break;
586 case HID_GD_RIGHT: usage->hat_dir = 3; break;
587 case HID_GD_LEFT: usage->hat_dir = 7; break;
588 default: goto unknown;
dde5845a 589 }
880d29f1
JS		 590 if (field->dpad) {
591 map_abs(field->dpad);
592 goto ignore;
d4ae650a 593 }
880d29f1 594 map_abs(ABS_HAT0X);
dde5845a 595 break;
880d29f1 596 }
dde5845a 597
880d29f1
JS		 598 switch (usage->hid) {
599 /* These usage IDs map directly to the usage codes. */
600 case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
601 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
79346d62
BT		 602 if (field->flags & HID_MAIN_ITEM_RELATIVE)
603 map_rel(usage->hid & 0xf);
604 else
605 map_abs_clear(usage->hid & 0xf);
606 break;
607
880d29f1
JS		 608 case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL:
609 if (field->flags & HID_MAIN_ITEM_RELATIVE)
610 map_rel(usage->hid & 0xf);
611 else
612 map_abs(usage->hid & 0xf);
613 break;
dde5845a 614
880d29f1
JS		 615 case HID_GD_HATSWITCH:
616 usage->hat_min = field->logical_minimum;
617 usage->hat_max = field->logical_maximum;
618 map_abs(ABS_HAT0X);
619 break;
dde5845a 620
880d29f1
JS		 621 case HID_GD_START: map_key_clear(BTN_START); break;
622 case HID_GD_SELECT: map_key_clear(BTN_SELECT); break;
dde5845a 623
880d29f1
JS		 624 default: goto unknown;
625 }
dde5845a 626
880d29f1
JS		 627 break;
628
629 case HID_UP_LED:
630 switch (usage->hid & 0xffff) { /* HID-Value: */
631 case 0x01: map_led (LED_NUML); break; /* "Num Lock" */
632 case 0x02: map_led (LED_CAPSL); break; /* "Caps Lock" */
633 case 0x03: map_led (LED_SCROLLL); break; /* "Scroll Lock" */
634 case 0x04: map_led (LED_COMPOSE); break; /* "Compose" */
635 case 0x05: map_led (LED_KANA); break; /* "Kana" */
636 case 0x27: map_led (LED_SLEEP); break; /* "Stand-By" */
637 case 0x4c: map_led (LED_SUSPEND); break; /* "System Suspend" */
638 case 0x09: map_led (LED_MUTE); break; /* "Mute" */
639 case 0x4b: map_led (LED_MISC); break; /* "Generic Indicator" */
640 case 0x19: map_led (LED_MAIL); break; /* "Message Waiting" */
641 case 0x4d: map_led (LED_CHARGING); break; /* "External Power Connected" */
642
643 default: goto ignore;
644 }
645 break;
646
647 case HID_UP_DIGITIZER:
648 switch (usage->hid & 0xff) {
8c8b01c3
FB		 649 case 0x00: /* Undefined */
650 goto ignore;
651
880d29f1
JS		 652 case 0x30: /* TipPressure */
653 if (!test_bit(BTN_TOUCH, input->keybit)) {
654 device->quirks |= HID_QUIRK_NOTOUCH;
655 set_bit(EV_KEY, input->evbit);
656 set_bit(BTN_TOUCH, input->keybit);
dde5845a 657 }
880d29f1 658 map_abs_clear(ABS_PRESSURE);
dde5845a
JK		 659 break;
660
880d29f1
JS		 661 case 0x32: /* InRange */
662 switch (field->physical & 0xff) {
663 case 0x21: map_key(BTN_TOOL_MOUSE); break;
664 case 0x22: map_key(BTN_TOOL_FINGER); break;
665 default: map_key(BTN_TOOL_PEN); break;
dde5845a
JK		 666 }
667 break;
668
880d29f1
JS		 669 case 0x3c: /* Invert */
670 map_key_clear(BTN_TOOL_RUBBER);
dde5845a
JK		 671 break;
672
b73b2da0
NK		 673 case 0x3d: /* X Tilt */
674 map_abs_clear(ABS_TILT_X);
675 break;
676
677 case 0x3e: /* Y Tilt */
678 map_abs_clear(ABS_TILT_Y);
679 break;
680
880d29f1
JS		 681 case 0x33: /* Touch */
682 case 0x42: /* TipSwitch */
683 case 0x43: /* TipSwitch2 */
684 device->quirks &= ~HID_QUIRK_NOTOUCH;
685 map_key_clear(BTN_TOUCH);
686 break;
dde5845a 687
880d29f1
JS		 688 case 0x44: /* BarrelSwitch */
689 map_key_clear(BTN_STYLUS);
690 break;
dde5845a 691
50b63697 692 case 0x46: /* TabletPick */
368c9664 693 case 0x5a: /* SecondaryBarrelSwitch */
50b63697
NK		 694 map_key_clear(BTN_STYLUS2);
695 break;
696
368c9664
PC		 697 case 0x5b: /* TransducerSerialNumber */
698 set_bit(MSC_SERIAL, input->mscbit);
699 break;
700
880d29f1
JS		 701 default: goto unknown;
702 }
703 break;
704
437f3b19 705 case HID_UP_CONSUMER: /* USB HUT v1.12, pages 75-84 */
880d29f1
JS		 706 switch (usage->hid & HID_USAGE) {
707 case 0x000: goto ignore;
437f3b19
JW		 708 case 0x030: map_key_clear(KEY_POWER); break;
709 case 0x031: map_key_clear(KEY_RESTART); break;
710 case 0x032: map_key_clear(KEY_SLEEP); break;
880d29f1 711 case 0x034: map_key_clear(KEY_SLEEP); break;
437f3b19 712 case 0x035: map_key_clear(KEY_KBDILLUMTOGGLE); break;
880d29f1
JS		 713 case 0x036: map_key_clear(BTN_MISC); break;
714
437f3b19
JW		 715 case 0x040: map_key_clear(KEY_MENU); break; /* Menu */
716 case 0x041: map_key_clear(KEY_SELECT); break; /* Menu Pick */
717 case 0x042: map_key_clear(KEY_UP); break; /* Menu Up */
718 case 0x043: map_key_clear(KEY_DOWN); break; /* Menu Down */
719 case 0x044: map_key_clear(KEY_LEFT); break; /* Menu Left */
720 case 0x045: map_key_clear(KEY_RIGHT); break; /* Menu Right */
721 case 0x046: map_key_clear(KEY_ESC); break; /* Menu Escape */
722 case 0x047: map_key_clear(KEY_KPPLUS); break; /* Menu Value Increase */
723 case 0x048: map_key_clear(KEY_KPMINUS); break; /* Menu Value Decrease */
724
725 case 0x060: map_key_clear(KEY_INFO); break; /* Data On Screen */
726 case 0x061: map_key_clear(KEY_SUBTITLE); break; /* Closed Caption */
727 case 0x063: map_key_clear(KEY_VCR); break; /* VCR/TV */
728 case 0x065: map_key_clear(KEY_CAMERA); break; /* Snapshot */
729 case 0x069: map_key_clear(KEY_RED); break;
730 case 0x06a: map_key_clear(KEY_GREEN); break;
731 case 0x06b: map_key_clear(KEY_BLUE); break;
732 case 0x06c: map_key_clear(KEY_YELLOW); break;
733 case 0x06d: map_key_clear(KEY_ZOOM); break;
734
f362e690
OG		 735 case 0x06f: map_key_clear(KEY_BRIGHTNESSUP); break;
736 case 0x070: map_key_clear(KEY_BRIGHTNESSDOWN); break;
737 case 0x072: map_key_clear(KEY_BRIGHTNESS_TOGGLE); break;
738 case 0x073: map_key_clear(KEY_BRIGHTNESS_MIN); break;
739 case 0x074: map_key_clear(KEY_BRIGHTNESS_MAX); break;
740 case 0x075: map_key_clear(KEY_BRIGHTNESS_AUTO); break;
741
437f3b19 742 case 0x082: map_key_clear(KEY_VIDEO_NEXT); break;
880d29f1 743 case 0x083: map_key_clear(KEY_LAST); break;
437f3b19 744 case 0x084: map_key_clear(KEY_ENTER); break;
880d29f1
JS		 745 case 0x088: map_key_clear(KEY_PC); break;
746 case 0x089: map_key_clear(KEY_TV); break;
747 case 0x08a: map_key_clear(KEY_WWW); break;
748 case 0x08b: map_key_clear(KEY_DVD); break;
749 case 0x08c: map_key_clear(KEY_PHONE); break;
750 case 0x08d: map_key_clear(KEY_PROGRAM); break;
751 case 0x08e: map_key_clear(KEY_VIDEOPHONE); break;
752 case 0x08f: map_key_clear(KEY_GAMES); break;
753 case 0x090: map_key_clear(KEY_MEMO); break;
754 case 0x091: map_key_clear(KEY_CD); break;
755 case 0x092: map_key_clear(KEY_VCR); break;
756 case 0x093: map_key_clear(KEY_TUNER); break;
757 case 0x094: map_key_clear(KEY_EXIT); break;
758 case 0x095: map_key_clear(KEY_HELP); break;
759 case 0x096: map_key_clear(KEY_TAPE); break;
760 case 0x097: map_key_clear(KEY_TV2); break;
761 case 0x098: map_key_clear(KEY_SAT); break;
762 case 0x09a: map_key_clear(KEY_PVR); break;
763
764 case 0x09c: map_key_clear(KEY_CHANNELUP); break;
765 case 0x09d: map_key_clear(KEY_CHANNELDOWN); break;
766 case 0x0a0: map_key_clear(KEY_VCR2); break;
767
768 case 0x0b0: map_key_clear(KEY_PLAY); break;
769 case 0x0b1: map_key_clear(KEY_PAUSE); break;
770 case 0x0b2: map_key_clear(KEY_RECORD); break;
771 case 0x0b3: map_key_clear(KEY_FASTFORWARD); break;
772 case 0x0b4: map_key_clear(KEY_REWIND); break;
773 case 0x0b5: map_key_clear(KEY_NEXTSONG); break;
774 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG); break;
775 case 0x0b7: map_key_clear(KEY_STOPCD); break;
776 case 0x0b8: map_key_clear(KEY_EJECTCD); break;
777 case 0x0bc: map_key_clear(KEY_MEDIA_REPEAT); break;
437f3b19
JW		 778 case 0x0b9: map_key_clear(KEY_SHUFFLE); break;
779 case 0x0bf: map_key_clear(KEY_SLOW); break;
880d29f1
JS		 780
781 case 0x0cd: map_key_clear(KEY_PLAYPAUSE); break;
f362e690 782 case 0x0cf: map_key_clear(KEY_VOICECOMMAND); break;
880d29f1
JS		 783 case 0x0e0: map_abs_clear(ABS_VOLUME); break;
784 case 0x0e2: map_key_clear(KEY_MUTE); break;
785 case 0x0e5: map_key_clear(KEY_BASSBOOST); break;
786 case 0x0e9: map_key_clear(KEY_VOLUMEUP); break;
787 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN); break;
437f3b19 788 case 0x0f5: map_key_clear(KEY_SLOW); break;
880d29f1 789
f362e690 790 case 0x181: map_key_clear(KEY_BUTTONCONFIG); break;
880d29f1
JS		 791 case 0x182: map_key_clear(KEY_BOOKMARKS); break;
792 case 0x183: map_key_clear(KEY_CONFIG); break;
793 case 0x184: map_key_clear(KEY_WORDPROCESSOR); break;
794 case 0x185: map_key_clear(KEY_EDITOR); break;
795 case 0x186: map_key_clear(KEY_SPREADSHEET); break;
796 case 0x187: map_key_clear(KEY_GRAPHICSEDITOR); break;
797 case 0x188: map_key_clear(KEY_PRESENTATION); break;
798 case 0x189: map_key_clear(KEY_DATABASE); break;
799 case 0x18a: map_key_clear(KEY_MAIL); break;
800 case 0x18b: map_key_clear(KEY_NEWS); break;
801 case 0x18c: map_key_clear(KEY_VOICEMAIL); break;
802 case 0x18d: map_key_clear(KEY_ADDRESSBOOK); break;
803 case 0x18e: map_key_clear(KEY_CALENDAR); break;
f362e690
OG		 804 case 0x18f: map_key_clear(KEY_TASKMANAGER); break;
805 case 0x190: map_key_clear(KEY_JOURNAL); break;
880d29f1
JS		 806 case 0x191: map_key_clear(KEY_FINANCE); break;
807 case 0x192: map_key_clear(KEY_CALC); break;
437f3b19 808 case 0x193: map_key_clear(KEY_PLAYER); break;
880d29f1
JS		 809 case 0x194: map_key_clear(KEY_FILE); break;
810 case 0x196: map_key_clear(KEY_WWW); break;
0690535d 811 case 0x199: map_key_clear(KEY_CHAT); break;
880d29f1
JS		 812 case 0x19c: map_key_clear(KEY_LOGOFF); break;
813 case 0x19e: map_key_clear(KEY_COFFEE); break;
f362e690
OG		 814 case 0x19f: map_key_clear(KEY_CONTROLPANEL); break;
815 case 0x1a2: map_key_clear(KEY_APPSELECT); break;
5820e4d4
HG		 816 case 0x1a3: map_key_clear(KEY_NEXT); break;
817 case 0x1a4: map_key_clear(KEY_PREVIOUS); break;
880d29f1
JS		 818 case 0x1a6: map_key_clear(KEY_HELP); break;
819 case 0x1a7: map_key_clear(KEY_DOCUMENTS); break;
820 case 0x1ab: map_key_clear(KEY_SPELLCHECK); break;
437f3b19 821 case 0x1ae: map_key_clear(KEY_KEYBOARD); break;
f362e690 822 case 0x1b1: map_key_clear(KEY_SCREENSAVER); break;
5820e4d4 823 case 0x1b4: map_key_clear(KEY_FILE); break;
437f3b19
JW		 824 case 0x1b6: map_key_clear(KEY_IMAGES); break;
825 case 0x1b7: map_key_clear(KEY_AUDIO); break;
826 case 0x1b8: map_key_clear(KEY_VIDEO); break;
880d29f1
JS		 827 case 0x1bc: map_key_clear(KEY_MESSENGER); break;
828 case 0x1bd: map_key_clear(KEY_INFO); break;
829 case 0x201: map_key_clear(KEY_NEW); break;
830 case 0x202: map_key_clear(KEY_OPEN); break;
831 case 0x203: map_key_clear(KEY_CLOSE); break;
832 case 0x204: map_key_clear(KEY_EXIT); break;
833 case 0x207: map_key_clear(KEY_SAVE); break;
834 case 0x208: map_key_clear(KEY_PRINT); break;
835 case 0x209: map_key_clear(KEY_PROPS); break;
836 case 0x21a: map_key_clear(KEY_UNDO); break;
837 case 0x21b: map_key_clear(KEY_COPY); break;
838 case 0x21c: map_key_clear(KEY_CUT); break;
839 case 0x21d: map_key_clear(KEY_PASTE); break;
840 case 0x21f: map_key_clear(KEY_FIND); break;
841 case 0x221: map_key_clear(KEY_SEARCH); break;
842 case 0x222: map_key_clear(KEY_GOTO); break;
843 case 0x223: map_key_clear(KEY_HOMEPAGE); break;
844 case 0x224: map_key_clear(KEY_BACK); break;
845 case 0x225: map_key_clear(KEY_FORWARD); break;
846 case 0x226: map_key_clear(KEY_STOP); break;
847 case 0x227: map_key_clear(KEY_REFRESH); break;
848 case 0x22a: map_key_clear(KEY_BOOKMARKS); break;
849 case 0x22d: map_key_clear(KEY_ZOOMIN); break;
850 case 0x22e: map_key_clear(KEY_ZOOMOUT); break;
851 case 0x22f: map_key_clear(KEY_ZOOMRESET); break;
852 case 0x233: map_key_clear(KEY_SCROLLUP); break;
853 case 0x234: map_key_clear(KEY_SCROLLDOWN); break;
854 case 0x238: map_rel(REL_HWHEEL); break;
437f3b19 855 case 0x23d: map_key_clear(KEY_EDIT); break;
880d29f1 856 case 0x25f: map_key_clear(KEY_CANCEL); break;
437f3b19
JW		 857 case 0x269: map_key_clear(KEY_INSERT); break;
858 case 0x26a: map_key_clear(KEY_DELETE); break;
880d29f1
JS		 859 case 0x279: map_key_clear(KEY_REDO); break;
860
861 case 0x289: map_key_clear(KEY_REPLY); break;
862 case 0x28b: map_key_clear(KEY_FORWARDMAIL); break;
863 case 0x28c: map_key_clear(KEY_SEND); break;
864
865 default: goto ignore;
866 }
867 break;
868
4f5ca836 869 case HID_UP_GENDEVCTRLS:
2f2e3f6d 870 if (hidinput_setup_battery(device, HID_INPUT_REPORT, field))
4f5ca836 871 goto ignore;
2f2e3f6d 872 else
4f5ca836
JF		 873 goto unknown;
874 break;
875
880d29f1
JS		 876 case HID_UP_HPVENDOR: /* Reported on a Dutch layout HP5308 */
877 set_bit(EV_REP, input->evbit);
878 switch (usage->hid & HID_USAGE) {
879 case 0x021: map_key_clear(KEY_PRINT); break;
880 case 0x070: map_key_clear(KEY_HP); break;
881 case 0x071: map_key_clear(KEY_CAMERA); break;
882 case 0x072: map_key_clear(KEY_SOUND); break;
883 case 0x073: map_key_clear(KEY_QUESTION); break;
884 case 0x080: map_key_clear(KEY_EMAIL); break;
885 case 0x081: map_key_clear(KEY_CHAT); break;
886 case 0x082: map_key_clear(KEY_SEARCH); break;
887 case 0x083: map_key_clear(KEY_CONNECT); break;
888 case 0x084: map_key_clear(KEY_FINANCE); break;
889 case 0x085: map_key_clear(KEY_SPORT); break;
890 case 0x086: map_key_clear(KEY_SHOP); break;
929578ab
KYL		 891 default: goto ignore;
892 }
893 break;
894
895 case HID_UP_HPVENDOR2:
896 set_bit(EV_REP, input->evbit);
897 switch (usage->hid & HID_USAGE) {
898 case 0x003: map_key_clear(KEY_BRIGHTNESSDOWN); break;
899 case 0x004: map_key_clear(KEY_BRIGHTNESSUP); break;
880d29f1
JS		 900 default: goto ignore;
901 }
902 break;
dde5845a 903
880d29f1
JS		 904 case HID_UP_MSVENDOR:
905 goto ignore;
dde5845a 906
880d29f1
JS		 907 case HID_UP_CUSTOM: /* Reported on Logitech and Apple USB keyboards */
908 set_bit(EV_REP, input->evbit);
909 goto ignore;
dde5845a 910
880d29f1
JS		 911 case HID_UP_LOGIVENDOR:
912 goto ignore;
fc99f22c 913
880d29f1
JS		 914 case HID_UP_PID:
915 switch (usage->hid & HID_USAGE) {
916 case 0xa4: map_key_clear(BTN_DEAD); break;
917 default: goto ignore;
918 }
919 break;
dde5845a 920
880d29f1
JS		 921 default:
922 unknown:
923 if (field->report_size == 1) {
924 if (field->report->type == HID_OUTPUT_REPORT) {
925 map_led(LED_MISC);
dde5845a
JK		 926 break;
927 }
880d29f1 928 map_key(BTN_MISC);
dde5845a 929 break;
880d29f1
JS		 930 }
931 if (field->flags & HID_MAIN_ITEM_RELATIVE) {
932 map_rel(REL_MISC);
933 break;
934 }
935 map_abs(ABS_MISC);
936 break;
dde5845a
JK		 937 }
938
10bd065f 939mapped:
c500c971
JS		 940 if (device->driver->input_mapped && device->driver->input_mapped(device,
941 hidinput, field, usage, &bit, &max) < 0)
942 goto ignore;
943
dde5845a
JK		 944 set_bit(usage->type, input->evbit);
945
946 while (usage->code <= max && test_and_set_bit(usage->code, bit))
947 usage->code = find_next_zero_bit(bit, max + 1, usage->code);
948
949 if (usage->code > max)
950 goto ignore;
951
952
953 if (usage->type == EV_ABS) {
954
955 int a = field->logical_minimum;
956 int b = field->logical_maximum;
957
958 if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
959 a = field->logical_minimum = 0;
960 b = field->logical_maximum = 255;
961 }
962
963 if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
964 input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
965 else input_set_abs_params(input, usage->code, a, b, 0, 0);
966
4ea6e4ff
NK		 967 input_abs_set_res(input, usage->code,
968 hidinput_calc_abs_res(field, usage->code));
969
6967b4d9
HR		 970 /* use a larger default input buffer for MT devices */
971 if (usage->code == ABS_MT_POSITION_X && input->hint_events_per_packet == 0)
972 input_set_events_per_packet(input, 60);
dde5845a
JK		 973 }
974
975 if (usage->type == EV_ABS &&
976 (usage->hat_min < usage->hat_max || usage->hat_dir)) {
977 int i;
978 for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
979 input_set_abs_params(input, i, -1, 1, 0, 0);
980 set_bit(i, input->absbit);
981 }
982 if (usage->hat_dir && !field->dpad)
983 field->dpad = usage->code;
984 }
985
2c1d8aea
JK		 986 /* for those devices which produce Consumer volume usage as relative,
987 * we emulate pressing volumeup/volumedown appropriate number of times
988 * in hidinput_hid_event()
989 */
990 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
991 (usage->code == ABS_VOLUME)) {
992 set_bit(KEY_VOLUMEUP, input->keybit);
993 set_bit(KEY_VOLUMEDOWN, input->keybit);
994 }
995
c01d50d1
JK		 996 if (usage->type == EV_KEY) {
997 set_bit(EV_MSC, input->evbit);
998 set_bit(MSC_SCAN, input->mscbit);
999 }
1000
dde5845a 1001ignore:
dde5845a 1002 return;
a635f9dd 1003
dde5845a
JK		 1004}
1005
1006void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
1007{
1008 struct input_dev *input;
b4482a4b 1009 unsigned *quirks = &hid->quirks;
dde5845a
JK		 1010
1011 if (!field->hidinput)
1012 return;
1013
1014 input = field->hidinput->input;
1015
1016 if (!usage->type)
1017 return;
1018
dde5845a
JK		 1019 if (usage->hat_min < usage->hat_max || usage->hat_dir) {
1020 int hat_dir = usage->hat_dir;
1021 if (!hat_dir)
1022 hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
1023 if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
1024 input_event(input, usage->type, usage->code , hid_hat_to_axis[hat_dir].x);
fc99f22c
DM		 1025 input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
1026 return;
1027 }
dde5845a
JK		 1028
1029 if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */
1030 *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
1031 return;
1032 }
1033
1034 if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */
1035 if (value) {
1036 input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
1037 return;
1038 }
1039 input_event(input, usage->type, usage->code, 0);
1040 input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
1041 return;
1042 }
1043
1044 if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */
1045 int a = field->logical_minimum;
1046 int b = field->logical_maximum;
1047 input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3));
1048 }
1049
1050 if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
58037eb9 1051 dbg_hid("Maximum Effects - %d\n",value);
dde5845a
JK		 1052 return;
1053 }
1054
1055 if (usage->hid == (HID_UP_PID | 0x7fUL)) {
58037eb9 1056 dbg_hid("PID Pool Report\n");
dde5845a
JK		 1057 return;
1058 }
1059
1060 if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
1061 return;
1062
2c1d8aea
JK		 1063 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
1064 (usage->code == ABS_VOLUME)) {
1065 int count = abs(value);
1066 int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN;
1067 int i;
1068
1069 for (i = 0; i < count; i++) {
1070 input_event(input, EV_KEY, direction, 1);
1071 input_sync(input);
1072 input_event(input, EV_KEY, direction, 0);
1073 input_sync(input);
1074 }
1075 return;
1076 }
1077
883e0e36
NK		 1078 /*
1079 * Ignore out-of-range values as per HID specification,
a688393b
JK		 1080 * section 5.10 and 6.2.25.
1081 *
1082 * The logical_minimum < logical_maximum check is done so that we
1083 * don't unintentionally discard values sent by devices which
1084 * don't specify logical min and max.
883e0e36
NK		 1085 */
1086 if ((field->flags & HID_MAIN_ITEM_VARIABLE) &&
6f1891d0 1087 (field->logical_minimum < field->logical_maximum) &&
883e0e36
NK		 1088 (value < field->logical_minimum ||
1089 value > field->logical_maximum)) {
6da70669
JK		 1090 dbg_hid("Ignoring out-of-range value %x\n", value);
1091 return;
1092 }
1093
c01d50d1
JK		 1094 /* report the usage code as scancode if the key status has changed */
1095 if (usage->type == EV_KEY && !!test_bit(usage->code, input->key) != value)
1096 input_event(input, EV_MSC, MSC_SCAN, usage->hid);
1fe8736d 1097
dde5845a
JK		 1098 input_event(input, usage->type, usage->code, value);
1099
1100 if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY))
1101 input_event(input, usage->type, usage->code, 0);
1102}
1103
1104void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
1105{
1106 struct hid_input *hidinput;
1107
24750f3e
HR		 1108 if (hid->quirks & HID_QUIRK_NO_INPUT_SYNC)
1109 return;
1110
dde5845a
JK		 1111 list_for_each_entry(hidinput, &hid->inputs, list)
1112 input_sync(hidinput->input);
1113}
229695e5 1114EXPORT_SYMBOL_GPL(hidinput_report_event);
dde5845a 1115
229695e5 1116int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
dde5845a
JK		 1117{
1118 struct hid_report *report;
1119 int i, j;
1120
1121 list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
1122 for (i = 0; i < report->maxfield; i++) {
1123 *field = report->field[i];
1124 for (j = 0; j < (*field)->maxusage; j++)
1125 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
1126 return j;
1127 }
1128 }
1129 return -1;
1130}
229695e5 1131EXPORT_SYMBOL_GPL(hidinput_find_field);
dde5845a 1132
4371ea82
DK		 1133struct hid_field *hidinput_get_led_field(struct hid_device *hid)
1134{
1135 struct hid_report *report;
1136 struct hid_field *field;
1137 int i, j;
1138
1139 list_for_each_entry(report,
1140 &hid->report_enum[HID_OUTPUT_REPORT].report_list,
1141 list) {
1142 for (i = 0; i < report->maxfield; i++) {
1143 field = report->field[i];
1144 for (j = 0; j < field->maxusage; j++)
1145 if (field->usage[j].type == EV_LED)
1146 return field;
1147 }
1148 }
1149 return NULL;
1150}
1151EXPORT_SYMBOL_GPL(hidinput_get_led_field);
1152
1153unsigned int hidinput_count_leds(struct hid_device *hid)
1154{
1155 struct hid_report *report;
1156 struct hid_field *field;
1157 int i, j;
1158 unsigned int count = 0;
1159
1160 list_for_each_entry(report,
1161 &hid->report_enum[HID_OUTPUT_REPORT].report_list,
1162 list) {
1163 for (i = 0; i < report->maxfield; i++) {
1164 field = report->field[i];
1165 for (j = 0; j < field->maxusage; j++)
1166 if (field->usage[j].type == EV_LED &&
1167 field->value[j])
1168 count += 1;
1169 }
1170 }
1171 return count;
1172}
1173EXPORT_SYMBOL_GPL(hidinput_count_leds);
1174
50c9d75b
DH		 1175static void hidinput_led_worker(struct work_struct *work)
1176{
1177 struct hid_device *hid = container_of(work, struct hid_device,
1178 led_work);
1179 struct hid_field *field;
1180 struct hid_report *report;
2ebaebcf 1181 int len, ret;
50c9d75b
DH		 1182 __u8 *buf;
1183
1184 field = hidinput_get_led_field(hid);
1185 if (!field)
1186 return;
1187
1188 /*
1189 * field->report is accessed unlocked regarding HID core. So there might
1190 * be another incoming SET-LED request from user-space, which changes
1191 * the LED state while we assemble our outgoing buffer. However, this
1192 * doesn't matter as hid_output_report() correctly converts it into a
1193 * boolean value no matter what information is currently set on the LED
1194 * field (even garbage). So the remote device will always get a valid
1195 * request.
1196 * And in case we send a wrong value, a next led worker is spawned
1197 * for every SET-LED request so the following worker will send the
1198 * correct value, guaranteed!
1199 */
1200
1201 report = field->report;
1202
1203 /* use custom SET_REPORT request if possible (asynchronous) */
1204 if (hid->ll_driver->request)
1205 return hid->ll_driver->request(hid, report, HID_REQ_SET_REPORT);
1206
1207 /* fall back to generic raw-output-report */
1208 len = ((report->size - 1) >> 3) + 1 + (report->id > 0);
9d27f432 1209 buf = hid_alloc_report_buf(report, GFP_KERNEL);
50c9d75b
DH		 1210 if (!buf)
1211 return;
1212
1213 hid_output_report(report, buf);
1214 /* synchronous output report */
2ebaebcf
BT		 1215 ret = hid_hw_output_report(hid, buf, len);
1216 if (ret == -ENOSYS)
1217 hid_hw_raw_request(hid, report->id, buf, len, HID_OUTPUT_REPORT,
1218 HID_REQ_SET_REPORT);
50c9d75b
DH		 1219 kfree(buf);
1220}
1221
1222static int hidinput_input_event(struct input_dev *dev, unsigned int type,
1223 unsigned int code, int value)
1224{
1225 struct hid_device *hid = input_get_drvdata(dev);
1226 struct hid_field *field;
1227 int offset;
1228
1229 if (type == EV_FF)
1230 return input_ff_event(dev, type, code, value);
1231
1232 if (type != EV_LED)
1233 return -1;
1234
1235 if ((offset = hidinput_find_field(hid, type, code, &field)) == -1) {
1236 hid_warn(dev, "event field not found\n");
1237 return -1;
1238 }
1239
1240 hid_set_field(field, offset, value);
1241
1242 schedule_work(&hid->led_work);
1243 return 0;
1244}
1245
7c379146
JK		 1246static int hidinput_open(struct input_dev *dev)
1247{
e0712985
DT		 1248 struct hid_device *hid = input_get_drvdata(dev);
1249
5bea7660 1250 return hid_hw_open(hid);
7c379146
JK		 1251}
1252
1253static void hidinput_close(struct input_dev *dev)
1254{
e0712985
DT		 1255 struct hid_device *hid = input_get_drvdata(dev);
1256
5bea7660 1257 hid_hw_close(hid);
7c379146
JK		 1258}
1259
f635bd11
HR		 1260static void report_features(struct hid_device *hid)
1261{
1262 struct hid_driver *drv = hid->driver;
1263 struct hid_report_enum *rep_enum;
1264 struct hid_report *rep;
1265 int i, j;
1266
f635bd11
HR		 1267 rep_enum = &hid->report_enum[HID_FEATURE_REPORT];
1268 list_for_each_entry(rep, &rep_enum->report_list, list)
cc6b54aa
BT		 1269 for (i = 0; i < rep->maxfield; i++) {
1270 /* Ignore if report count is out of bounds. */
1271 if (rep->field[i]->report_count < 1)
1272 continue;
1273
c5a92aa3
DN		 1274 for (j = 0; j < rep->field[i]->maxusage; j++) {
1275 /* Verify if Battery Strength feature is available */
2f2e3f6d 1276 hidinput_setup_battery(hid, HID_FEATURE_REPORT, rep->field[i]);
c5a92aa3
DN		 1277
1278 if (drv->feature_mapping)
1279 drv->feature_mapping(hid, rep->field[i],
1280 rep->field[i]->usage + j);
1281 }
cc6b54aa 1282 }
f635bd11
HR		 1283}
1284
ae751fa8
BT		 1285static struct hid_input *hidinput_allocate(struct hid_device *hid)
1286{
1287 struct hid_input *hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
1288 struct input_dev *input_dev = input_allocate_device();
1289 if (!hidinput || !input_dev) {
1290 kfree(hidinput);
1291 input_free_device(input_dev);
1292 hid_err(hid, "Out of memory during hid input probe\n");
1293 return NULL;
1294 }
1295
1296 input_set_drvdata(input_dev, hid);
3c86726c 1297 input_dev->event = hidinput_input_event;
ae751fa8
BT		 1298 input_dev->open = hidinput_open;
1299 input_dev->close = hidinput_close;
1300 input_dev->setkeycode = hidinput_setkeycode;
1301 input_dev->getkeycode = hidinput_getkeycode;
1302
1303 input_dev->name = hid->name;
1304 input_dev->phys = hid->phys;
1305 input_dev->uniq = hid->uniq;
1306 input_dev->id.bustype = hid->bus;
1307 input_dev->id.vendor = hid->vendor;
1308 input_dev->id.product = hid->product;
1309 input_dev->id.version = hid->version;
bbe31754 1310 input_dev->dev.parent = &hid->dev;
ae751fa8
BT		 1311 hidinput->input = input_dev;
1312 list_add_tail(&hidinput->list, &hid->inputs);
1313
1314 return hidinput;
1315}
1316
4f22decf
BT		 1317static bool hidinput_has_been_populated(struct hid_input *hidinput)
1318{
1319 int i;
1320 unsigned long r = 0;
1321
1322 for (i = 0; i < BITS_TO_LONGS(EV_CNT); i++)
1323 r |= hidinput->input->evbit[i];
1324
1325 for (i = 0; i < BITS_TO_LONGS(KEY_CNT); i++)
1326 r |= hidinput->input->keybit[i];
1327
1328 for (i = 0; i < BITS_TO_LONGS(REL_CNT); i++)
1329 r |= hidinput->input->relbit[i];
1330
1331 for (i = 0; i < BITS_TO_LONGS(ABS_CNT); i++)
1332 r |= hidinput->input->absbit[i];
1333
1334 for (i = 0; i < BITS_TO_LONGS(MSC_CNT); i++)
1335 r |= hidinput->input->mscbit[i];
1336
1337 for (i = 0; i < BITS_TO_LONGS(LED_CNT); i++)
1338 r |= hidinput->input->ledbit[i];
1339
1340 for (i = 0; i < BITS_TO_LONGS(SND_CNT); i++)
1341 r |= hidinput->input->sndbit[i];
1342
1343 for (i = 0; i < BITS_TO_LONGS(FF_CNT); i++)
1344 r |= hidinput->input->ffbit[i];
1345
1346 for (i = 0; i < BITS_TO_LONGS(SW_CNT); i++)
1347 r |= hidinput->input->swbit[i];
1348
1349 return !!r;
1350}
1351
1352static void hidinput_cleanup_hidinput(struct hid_device *hid,
1353 struct hid_input *hidinput)
1354{
1355 struct hid_report *report;
1356 int i, k;
1357
1358 list_del(&hidinput->list);
1359 input_free_device(hidinput->input);
1360
1361 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
1362 if (k == HID_OUTPUT_REPORT &&
1363 hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
1364 continue;
1365
1366 list_for_each_entry(report, &hid->report_enum[k].report_list,
1367 list) {
1368
1369 for (i = 0; i < report->maxfield; i++)
1370 if (report->field[i]->hidinput == hidinput)
1371 report->field[i]->hidinput = NULL;
1372 }
1373 }
1374
1375 kfree(hidinput);
1376}
1377
dde5845a
JK		 1378/*
1379 * Register the input device; print a message.
1380 * Configure the input layer interface
1381 * Read all reports and initialize the absolute field values.
1382 */
1383
93c10132 1384int hidinput_connect(struct hid_device *hid, unsigned int force)
dde5845a 1385{
9ebf3d76 1386 struct hid_driver *drv = hid->driver;
dde5845a
JK		 1387 struct hid_report *report;
1388 struct hid_input *hidinput = NULL;
dde5845a
JK		 1389 int i, j, k;
1390
1391 INIT_LIST_HEAD(&hid->inputs);
50c9d75b 1392 INIT_WORK(&hid->led_work, hidinput_led_worker);
dde5845a 1393
93c10132
JS		 1394 if (!force) {
1395 for (i = 0; i < hid->maxcollection; i++) {
1396 struct hid_collection *col = &hid->collection[i];
1397 if (col->type == HID_COLLECTION_APPLICATION ||
1398 col->type == HID_COLLECTION_PHYSICAL)
1399 if (IS_INPUT_APPLICATION(col->usage))
1400 break;
1401 }
dde5845a 1402
93c10132
JS		 1403 if (i == hid->maxcollection)
1404 return -1;
1405 }
dde5845a 1406
f635bd11
HR		 1407 report_features(hid);
1408
1409 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
0d2689c0
BT		 1410 if (k == HID_OUTPUT_REPORT &&
1411 hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
1412 continue;
5556feae 1413
dde5845a
JK		 1414 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
1415
1416 if (!report->maxfield)
1417 continue;
1418
1419 if (!hidinput) {
ae751fa8
BT		 1420 hidinput = hidinput_allocate(hid);
1421 if (!hidinput)
368d290b 1422 goto out_unwind;
dde5845a
JK		 1423 }
1424
1425 for (i = 0; i < report->maxfield; i++)
1426 for (j = 0; j < report->field[i]->maxusage; j++)
1427 hidinput_configure_usage(hidinput, report->field[i],
1428 report->field[i]->usage + j);
1429
4f22decf
BT		 1430 if ((hid->quirks & HID_QUIRK_NO_EMPTY_INPUT) &&
1431 !hidinput_has_been_populated(hidinput))
1432 continue;
1433
dde5845a
JK		 1434 if (hid->quirks & HID_QUIRK_MULTI_INPUT) {
1435 /* This will leave hidinput NULL, so that it
1436 * allocates another one if we have more inputs on
1437 * the same interface. Some devices (e.g. Happ's
1438 * UGCI) cram a lot of unrelated inputs into the
1439 * same interface. */
1440 hidinput->report = report;
9ebf3d76
HR		 1441 if (drv->input_configured)
1442 drv->input_configured(hid, hidinput);
368d290b
DH		 1443 if (input_register_device(hidinput->input))
1444 goto out_cleanup;
dde5845a
JK		 1445 hidinput = NULL;
1446 }
1447 }
0d2689c0 1448 }
dde5845a 1449
4f22decf
BT		 1450 if (hidinput && (hid->quirks & HID_QUIRK_NO_EMPTY_INPUT) &&
1451 !hidinput_has_been_populated(hidinput)) {
1452 /* no need to register an input device not populated */
1453 hidinput_cleanup_hidinput(hid, hidinput);
1454 hidinput = NULL;
1455 }
1456
1457 if (list_empty(&hid->inputs)) {
1458 hid_err(hid, "No inputs registered, leaving\n");
1459 goto out_unwind;
1460 }
1461
9ebf3d76
HR		 1462 if (hidinput) {
1463 if (drv->input_configured)
1464 drv->input_configured(hid, hidinput);
1465 if (input_register_device(hidinput->input))
1466 goto out_cleanup;
1467 }
dde5845a
JK		 1468
1469 return 0;
368d290b
DH		 1470
1471out_cleanup:
d9236303 1472 list_del(&hidinput->list);
368d290b
DH		 1473 input_free_device(hidinput->input);
1474 kfree(hidinput);
1475out_unwind:
1476 /* unwind the ones we already registered */
1477 hidinput_disconnect(hid);
1478
1479 return -1;
dde5845a 1480}
229695e5 1481EXPORT_SYMBOL_GPL(hidinput_connect);
dde5845a
JK		 1482
1483void hidinput_disconnect(struct hid_device *hid)
1484{
1485 struct hid_input *hidinput, *next;
1486
4f5ca836
JF		 1487 hidinput_cleanup_battery(hid);
1488
dde5845a
JK		 1489 list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
1490 list_del(&hidinput->list);
1491 input_unregister_device(hidinput->input);
1492 kfree(hidinput);
1493 }
50c9d75b
DH		 1494
1495 /* led_work is spawned by input_dev callbacks, but doesn't access the
1496 * parent input_dev at all. Once all input devices are removed, we
1497 * know that led_work will never get restarted, so we can cancel it
1498 * synchronously and are safe. */
1499 cancel_work_sync(&hid->led_work);
dde5845a 1500}
229695e5
JK		 1501EXPORT_SYMBOL_GPL(hidinput_disconnect);
1502
Linux kernel - Deliverables
This page took 0.768689 seconds and 5 git commands to generate.