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Merge tag 'powerpc-5.11-8' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc...
[mirror_ubuntu-hirsute-kernel.git] / drivers / hid / hid-input.c
CommitLineData
1a59d1b8 1// SPDX-License-Identifier: GPL-2.0-or-later
dde5845a 2/*
dde5845a 3 * Copyright (c) 2000-2001 Vojtech Pavlik
7d39e849 4 * Copyright (c) 2006-2010 Jiri Kosina
dde5845a
JK		 5 *
6 * HID to Linux Input mapping
7 */
8
9/*
dde5845a
JK		 10 *
11 * Should you need to contact me, the author, you can do so either by
12 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
13 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
14 */
15
16#include <linux/module.h>
17#include <linux/slab.h>
18#include <linux/kernel.h>
dde5845a 19
dde5845a 20#include <linux/hid.h>
c080d89a 21#include <linux/hid-debug.h>
dde5845a 22
bbc21cfd
JF		 23#include "hid-ids.h"
24
dde5845a
JK		 25#define unk KEY_UNKNOWN
26
27static const unsigned char hid_keyboard[256] = {
28 0, 0, 0, 0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
29 50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44, 2, 3,
30 4, 5, 6, 7, 8, 9, 10, 11, 28, 1, 14, 15, 57, 12, 13, 26,
31 27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
32 65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
33 105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
34 72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190,
35 191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113,
36 115,114,unk,unk,unk,121,unk, 89, 93,124, 92, 94, 95,unk,unk,unk,
437f3b19 37 122,123, 90, 91, 85,unk,unk,unk,unk,unk,unk,unk,111,unk,unk,unk,
dde5845a 38 unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
1fe8736d 39 unk,unk,unk,unk,unk,unk,179,180,unk,unk,unk,unk,unk,unk,unk,unk,
dde5845a 40 unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
437f3b19 41 unk,unk,unk,unk,unk,unk,unk,unk,111,unk,unk,unk,unk,unk,unk,unk,
dde5845a
JK		 42 29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
43 150,158,159,128,136,177,178,176,142,152,173,140,unk,unk,unk,unk
44};
45
46static const struct {
47 __s32 x;
48 __s32 y;
49} hid_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
50
022e8c4d
JS		 51#define map_abs(c) hid_map_usage(hidinput, usage, &bit, &max, EV_ABS, (c))
52#define map_rel(c) hid_map_usage(hidinput, usage, &bit, &max, EV_REL, (c))
53#define map_key(c) hid_map_usage(hidinput, usage, &bit, &max, EV_KEY, (c))
54#define map_led(c) hid_map_usage(hidinput, usage, &bit, &max, EV_LED, (c))
dde5845a 55
022e8c4d
JS		 56#define map_abs_clear(c) hid_map_usage_clear(hidinput, usage, &bit, \
57 &max, EV_ABS, (c))
58#define map_key_clear(c) hid_map_usage_clear(hidinput, usage, &bit, \
59 &max, EV_KEY, (c))
dde5845a 60
a0bf0ea8
DT		 61static bool match_scancode(struct hid_usage *usage,
62 unsigned int cur_idx, unsigned int scancode)
fe7ba31f 63{
a0bf0ea8 64 return (usage->hid & (HID_USAGE_PAGE | HID_USAGE)) == scancode;
fe7ba31f
MR		 65}
66
a0bf0ea8
DT		 67static bool match_keycode(struct hid_usage *usage,
68 unsigned int cur_idx, unsigned int keycode)
fe7ba31f 69{
f5854fad
DT		 70 /*
71 * We should exclude unmapped usages when doing lookup by keycode.
72 */
73 return (usage->type == EV_KEY && usage->code == keycode);
a0bf0ea8 74}
58b93995 75
a0bf0ea8
DT		 76static bool match_index(struct hid_usage *usage,
77 unsigned int cur_idx, unsigned int idx)
78{
79 return cur_idx == idx;
fe7ba31f
MR		 80}
81
a0bf0ea8
DT		 82typedef bool (*hid_usage_cmp_t)(struct hid_usage *usage,
83 unsigned int cur_idx, unsigned int val);
84
fe7ba31f 85static struct hid_usage *hidinput_find_key(struct hid_device *hid,
a0bf0ea8
DT		 86 hid_usage_cmp_t match,
87 unsigned int value,
88 unsigned int *usage_idx)
fe7ba31f 89{
a0bf0ea8 90 unsigned int i, j, k, cur_idx = 0;
fe7ba31f
MR		 91 struct hid_report *report;
92 struct hid_usage *usage;
93
94 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
95 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
96 for (i = 0; i < report->maxfield; i++) {
a0bf0ea8 97 for (j = 0; j < report->field[i]->maxusage; j++) {
fe7ba31f 98 usage = report->field[i]->usage + j;
f5854fad 99 if (usage->type == EV_KEY || usage->type == 0) {
a0bf0ea8
DT		 100 if (match(usage, cur_idx, value)) {
101 if (usage_idx)
102 *usage_idx = cur_idx;
103 return usage;
104 }
105 cur_idx++;
106 }
fe7ba31f
MR		 107 }
108 }
109 }
110 }
111 return NULL;
112}
113
a0bf0ea8
DT		 114static struct hid_usage *hidinput_locate_usage(struct hid_device *hid,
115 const struct input_keymap_entry *ke,
116 unsigned int *index)
117{
118 struct hid_usage *usage;
119 unsigned int scancode;
120
121 if (ke->flags & INPUT_KEYMAP_BY_INDEX)
122 usage = hidinput_find_key(hid, match_index, ke->index, index);
123 else if (input_scancode_to_scalar(ke, &scancode) == 0)
124 usage = hidinput_find_key(hid, match_scancode, scancode, index);
125 else
126 usage = NULL;
127
128 return usage;
129}
130
58b93995 131static int hidinput_getkeycode(struct input_dev *dev,
a0bf0ea8 132 struct input_keymap_entry *ke)
fe7ba31f 133{
f202df60 134 struct hid_device *hid = input_get_drvdata(dev);
fe7ba31f 135 struct hid_usage *usage;
a0bf0ea8 136 unsigned int scancode, index;
77b29662 137
a0bf0ea8 138 usage = hidinput_locate_usage(hid, ke, &index);
fe7ba31f 139 if (usage) {
f5854fad
DT		 140 ke->keycode = usage->type == EV_KEY ?
141 usage->code : KEY_RESERVED;
a0bf0ea8
DT		 142 ke->index = index;
143 scancode = usage->hid & (HID_USAGE_PAGE | HID_USAGE);
144 ke->len = sizeof(scancode);
145 memcpy(ke->scancode, &scancode, sizeof(scancode));
fe7ba31f
MR		 146 return 0;
147 }
a0bf0ea8 148
fe7ba31f
MR		 149 return -EINVAL;
150}
151
58b93995 152static int hidinput_setkeycode(struct input_dev *dev,
a0bf0ea8
DT		 153 const struct input_keymap_entry *ke,
154 unsigned int *old_keycode)
fe7ba31f 155{
f202df60 156 struct hid_device *hid = input_get_drvdata(dev);
fe7ba31f 157 struct hid_usage *usage;
77b29662 158
a0bf0ea8 159 usage = hidinput_locate_usage(hid, ke, NULL);
fe7ba31f 160 if (usage) {
f5854fad
DT		 161 *old_keycode = usage->type == EV_KEY ?
162 usage->code : KEY_RESERVED;
a0bf0ea8 163 usage->code = ke->keycode;
77b29662 164
a0bf0ea8 165 clear_bit(*old_keycode, dev->keybit);
fe7ba31f 166 set_bit(usage->code, dev->keybit);
587d1452 167 dbg_hid("Assigned keycode %d to HID usage code %x\n",
a0bf0ea8
DT		 168 usage->code, usage->hid);
169
170 /*
171 * Set the keybit for the old keycode if the old keycode is used
172 * by another key
173 */
174 if (hidinput_find_key(hid, match_keycode, *old_keycode, NULL))
175 set_bit(*old_keycode, dev->keybit);
77b29662 176
fe7ba31f
MR		 177 return 0;
178 }
77b29662 179
fe7ba31f
MR		 180 return -EINVAL;
181}
182
ad0e669b 183
4ea6e4ff
NK		 184/**
185 * hidinput_calc_abs_res - calculate an absolute axis resolution
186 * @field: the HID report field to calculate resolution for
187 * @code: axis code
188 *
189 * The formula is:
190 * (logical_maximum - logical_minimum)
191 * resolution = ----------------------------------------------------------
192 * (physical_maximum - physical_minimum) * 10 ^ unit_exponent
193 *
194 * as seen in the HID specification v1.11 6.2.2.7 Global Items.
195 *
83ed79c5
DT		 196 * Only exponent 1 length units are processed. Centimeters and inches are
197 * converted to millimeters. Degrees are converted to radians.
4ea6e4ff 198 */
37cf6e6f 199__s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code)
4ea6e4ff
NK		 200{
201 __s32 unit_exponent = field->unit_exponent;
202 __s32 logical_extents = field->logical_maximum -
203 field->logical_minimum;
204 __s32 physical_extents = field->physical_maximum -
205 field->physical_minimum;
206 __s32 prev;
207
208 /* Check if the extents are sane */
209 if (logical_extents <= 0 || physical_extents <= 0)
210 return 0;
211
212 /*
213 * Verify and convert units.
214 * See HID specification v1.11 6.2.2.7 Global Items for unit decoding
215 */
b73b2da0
NK		 216 switch (code) {
217 case ABS_X:
218 case ABS_Y:
219 case ABS_Z:
37cf6e6f
BT		 220 case ABS_MT_POSITION_X:
221 case ABS_MT_POSITION_Y:
222 case ABS_MT_TOOL_X:
223 case ABS_MT_TOOL_Y:
224 case ABS_MT_TOUCH_MAJOR:
225 case ABS_MT_TOUCH_MINOR:
ad0e669b 226 if (field->unit == 0x11) { /* If centimeters */
83ed79c5
DT		 227 /* Convert to millimeters */
228 unit_exponent += 1;
ad0e669b 229 } else if (field->unit == 0x13) { /* If inches */
83ed79c5
DT		 230 /* Convert to millimeters */
231 prev = physical_extents;
232 physical_extents *= 254;
233 if (physical_extents < prev)
4ea6e4ff 234 return 0;
83ed79c5 235 unit_exponent -= 1;
ad0e669b 236 } else {
4ea6e4ff
NK		 237 return 0;
238 }
b73b2da0
NK		 239 break;
240
241 case ABS_RX:
242 case ABS_RY:
243 case ABS_RZ:
c0bf5741 244 case ABS_WHEEL:
b73b2da0
NK		 245 case ABS_TILT_X:
246 case ABS_TILT_Y:
4ea6e4ff
NK		 247 if (field->unit == 0x14) { /* If degrees */
248 /* Convert to radians */
249 prev = logical_extents;
250 logical_extents *= 573;
251 if (logical_extents < prev)
252 return 0;
253 unit_exponent += 1;
254 } else if (field->unit != 0x12) { /* If not radians */
255 return 0;
256 }
b73b2da0
NK		 257 break;
258
259 default:
4ea6e4ff
NK		 260 return 0;
261 }
262
263 /* Apply negative unit exponent */
264 for (; unit_exponent < 0; unit_exponent++) {
265 prev = logical_extents;
266 logical_extents *= 10;
267 if (logical_extents < prev)
268 return 0;
269 }
270 /* Apply positive unit exponent */
271 for (; unit_exponent > 0; unit_exponent--) {
272 prev = physical_extents;
273 physical_extents *= 10;
274 if (physical_extents < prev)
275 return 0;
276 }
277
278 /* Calculate resolution */
ccdd6994 279 return DIV_ROUND_CLOSEST(logical_extents, physical_extents);
4ea6e4ff 280}
37cf6e6f 281EXPORT_SYMBOL_GPL(hidinput_calc_abs_res);
4ea6e4ff 282
4f5ca836
JF		 283#ifdef CONFIG_HID_BATTERY_STRENGTH
284static enum power_supply_property hidinput_battery_props[] = {
285 POWER_SUPPLY_PROP_PRESENT,
286 POWER_SUPPLY_PROP_ONLINE,
287 POWER_SUPPLY_PROP_CAPACITY,
288 POWER_SUPPLY_PROP_MODEL_NAME,
45d9c273
JF		 289 POWER_SUPPLY_PROP_STATUS,
290 POWER_SUPPLY_PROP_SCOPE,
4f5ca836
JF		 291};
292
bbc21cfd 293#define HID_BATTERY_QUIRK_PERCENT (1 << 0) /* always reports percent */
652aa6a9 294#define HID_BATTERY_QUIRK_FEATURE (1 << 1) /* ask for feature report */
5d9374cf 295#define HID_BATTERY_QUIRK_IGNORE (1 << 2) /* completely ignore the battery */
bbc21cfd
JF		 296
297static const struct hid_device_id hid_battery_quirks[] = {
4cc85417 298 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
cbd366be
RS		 299 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO),
300 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
301 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
302 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI),
303 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
652aa6a9 304 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
cbd366be 305 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI),
652aa6a9 306 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
da940db4
KR		 307 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
308 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO),
309 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
0c47935c
DN		 310 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
311 USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI),
312 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
5d9374cf
AP		 313 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM,
314 USB_DEVICE_ID_ELECOM_BM084),
315 HID_BATTERY_QUIRK_IGNORE },
0fd79184
BL		 316 { HID_USB_DEVICE(USB_VENDOR_ID_SYMBOL,
317 USB_DEVICE_ID_SYMBOL_SCANNER_3),
318 HID_BATTERY_QUIRK_IGNORE },
a767ffea
NH		 319 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ASUSTEK,
320 USB_DEVICE_ID_ASUSTEK_T100CHI_KEYBOARD),
321 HID_BATTERY_QUIRK_IGNORE },
7940fb03
HG		 322 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH,
323 USB_DEVICE_ID_LOGITECH_DINOVO_EDGE_KBD),
324 HID_BATTERY_QUIRK_IGNORE },
7c38e769
SM		 325 { HID_USB_DEVICE(USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ASUS_UX550_TOUCHSCREEN),
326 HID_BATTERY_QUIRK_IGNORE },
bbc21cfd
JF		 327 {}
328};
329
330static unsigned find_battery_quirk(struct hid_device *hdev)
331{
332 unsigned quirks = 0;
333 const struct hid_device_id *match;
334
335 match = hid_match_id(hdev, hid_battery_quirks);
336 if (match != NULL)
337 quirks = match->driver_data;
338
339 return quirks;
340}
341
581c4484
DT		 342static int hidinput_scale_battery_capacity(struct hid_device *dev,
343 int value)
344{
345 if (dev->battery_min < dev->battery_max &&
346 value >= dev->battery_min && value <= dev->battery_max)
347 value = ((value - dev->battery_min) * 100) /
348 (dev->battery_max - dev->battery_min);
349
350 return value;
351}
352
353static int hidinput_query_battery_capacity(struct hid_device *dev)
354{
355 u8 *buf;
356 int ret;
357
4f57cace 358 buf = kmalloc(4, GFP_KERNEL);
581c4484
DT		 359 if (!buf)
360 return -ENOMEM;
361
4f57cace 362 ret = hid_hw_raw_request(dev, dev->battery_report_id, buf, 4,
581c4484 363 dev->battery_report_type, HID_REQ_GET_REPORT);
4f57cace 364 if (ret < 2) {
581c4484
DT		 365 kfree(buf);
366 return -ENODATA;
367 }
368
369 ret = hidinput_scale_battery_capacity(dev, buf[1]);
370 kfree(buf);
371 return ret;
372}
373
4f5ca836
JF		 374static int hidinput_get_battery_property(struct power_supply *psy,
375 enum power_supply_property prop,
376 union power_supply_propval *val)
377{
297d716f 378 struct hid_device *dev = power_supply_get_drvdata(psy);
581c4484 379 int value;
4f5ca836
JF		 380 int ret = 0;
381
382 switch (prop) {
383 case POWER_SUPPLY_PROP_PRESENT:
384 case POWER_SUPPLY_PROP_ONLINE:
385 val->intval = 1;
386 break;
387
388 case POWER_SUPPLY_PROP_CAPACITY:
2e210bbb
DT		 389 if (dev->battery_status != HID_BATTERY_REPORTED &&
390 !dev->battery_avoid_query) {
581c4484
DT		 391 value = hidinput_query_battery_capacity(dev);
392 if (value < 0)
393 return value;
394 } else {
395 value = dev->battery_capacity;
c5a92aa3
DN		 396 }
397
581c4484 398 val->intval = value;
4f5ca836
JF		 399 break;
400
401 case POWER_SUPPLY_PROP_MODEL_NAME:
402 val->strval = dev->name;
403 break;
404
c5a92aa3 405 case POWER_SUPPLY_PROP_STATUS:
2e210bbb
DT		 406 if (dev->battery_status != HID_BATTERY_REPORTED &&
407 !dev->battery_avoid_query) {
581c4484
DT		 408 value = hidinput_query_battery_capacity(dev);
409 if (value < 0)
410 return value;
411
412 dev->battery_capacity = value;
2e210bbb 413 dev->battery_status = HID_BATTERY_QUERIED;
581c4484
DT		 414 }
415
2e210bbb 416 if (dev->battery_status == HID_BATTERY_UNKNOWN)
581c4484
DT		 417 val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
418 else if (dev->battery_capacity == 100)
419 val->intval = POWER_SUPPLY_STATUS_FULL;
420 else
421 val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
c5a92aa3
DN		 422 break;
423
45d9c273
JF		 424 case POWER_SUPPLY_PROP_SCOPE:
425 val->intval = POWER_SUPPLY_SCOPE_DEVICE;
426 break;
427
4f5ca836
JF		 428 default:
429 ret = -EINVAL;
430 break;
431 }
432
433 return ret;
434}
435
581c4484 436static int hidinput_setup_battery(struct hid_device *dev, unsigned report_type, struct hid_field *field)
4f5ca836 437{
581c4484 438 struct power_supply_desc *psy_desc;
297d716f 439 struct power_supply_config psy_cfg = { .drv_data = dev, };
bbc21cfd 440 unsigned quirks;
2f2e3f6d 441 s32 min, max;
581c4484 442 int error;
2f2e3f6d 443
581c4484
DT		 444 if (dev->battery)
445 return 0; /* already initialized? */
4f5ca836 446
5d9374cf
AP		 447 quirks = find_battery_quirk(dev);
448
449 hid_dbg(dev, "device %x:%x:%x %d quirks %d\n",
450 dev->bus, dev->vendor, dev->product, dev->version, quirks);
451
452 if (quirks & HID_BATTERY_QUIRK_IGNORE)
581c4484 453 return 0;
5d9374cf 454
297d716f 455 psy_desc = kzalloc(sizeof(*psy_desc), GFP_KERNEL);
581c4484
DT		 456 if (!psy_desc)
457 return -ENOMEM;
4f5ca836 458
09223865
DT		 459 psy_desc->name = kasprintf(GFP_KERNEL, "hid-%s-battery",
460 strlen(dev->uniq) ?
461 dev->uniq : dev_name(&dev->dev));
581c4484
DT		 462 if (!psy_desc->name) {
463 error = -ENOMEM;
464 goto err_free_mem;
297d716f
KK		 465 }
466
467 psy_desc->type = POWER_SUPPLY_TYPE_BATTERY;
468 psy_desc->properties = hidinput_battery_props;
469 psy_desc->num_properties = ARRAY_SIZE(hidinput_battery_props);
470 psy_desc->use_for_apm = 0;
471 psy_desc->get_property = hidinput_get_battery_property;
4f5ca836 472
2f2e3f6d
JF		 473 min = field->logical_minimum;
474 max = field->logical_maximum;
475
bbc21cfd
JF		 476 if (quirks & HID_BATTERY_QUIRK_PERCENT) {
477 min = 0;
478 max = 100;
479 }
480
652aa6a9
JF		 481 if (quirks & HID_BATTERY_QUIRK_FEATURE)
482 report_type = HID_FEATURE_REPORT;
483
4f5ca836
JF		 484 dev->battery_min = min;
485 dev->battery_max = max;
fb8ac91b 486 dev->battery_report_type = report_type;
2f2e3f6d 487 dev->battery_report_id = field->report->id;
4f5ca836 488
2e210bbb
DT		 489 /*
490 * Stylus is normally not connected to the device and thus we
491 * can't query the device and get meaningful battery strength.
492 * We have to wait for the device to report it on its own.
493 */
494 dev->battery_avoid_query = report_type == HID_INPUT_REPORT &&
495 field->physical == HID_DG_STYLUS;
496
297d716f
KK		 497 dev->battery = power_supply_register(&dev->dev, psy_desc, &psy_cfg);
498 if (IS_ERR(dev->battery)) {
581c4484
DT		 499 error = PTR_ERR(dev->battery);
500 hid_warn(dev, "can't register power supply: %d\n", error);
501 goto err_free_name;
4f5ca836 502 }
2f2e3f6d 503
581c4484
DT		 504 power_supply_powers(dev->battery, &dev->dev);
505 return 0;
506
507err_free_name:
508 kfree(psy_desc->name);
509err_free_mem:
510 kfree(psy_desc);
511 dev->battery = NULL;
512 return error;
4f5ca836
JF		 513}
514
515static void hidinput_cleanup_battery(struct hid_device *dev)
516{
0621809e
KK		 517 const struct power_supply_desc *psy_desc;
518
297d716f 519 if (!dev->battery)
4f5ca836
JF		 520 return;
521
0621809e 522 psy_desc = dev->battery->desc;
297d716f 523 power_supply_unregister(dev->battery);
0621809e
KK		 524 kfree(psy_desc->name);
525 kfree(psy_desc);
297d716f 526 dev->battery = NULL;
4f5ca836 527}
581c4484
DT		 528
529static void hidinput_update_battery(struct hid_device *dev, int value)
530{
0152b29c
DT		 531 int capacity;
532
581c4484
DT		 533 if (!dev->battery)
534 return;
535
536 if (value == 0 || value < dev->battery_min || value > dev->battery_max)
537 return;
538
0152b29c
DT		 539 capacity = hidinput_scale_battery_capacity(dev, value);
540
2e210bbb 541 if (dev->battery_status != HID_BATTERY_REPORTED ||
c6838eee 542 capacity != dev->battery_capacity ||
543 ktime_after(ktime_get_coarse(), dev->battery_ratelimit_time)) {
0152b29c 544 dev->battery_capacity = capacity;
2e210bbb 545 dev->battery_status = HID_BATTERY_REPORTED;
c6838eee 546 dev->battery_ratelimit_time =
547 ktime_add_ms(ktime_get_coarse(), 30 * 1000);
0152b29c
DT		 548 power_supply_changed(dev->battery);
549 }
581c4484 550}
4f5ca836 551#else /* !CONFIG_HID_BATTERY_STRENGTH */
581c4484
DT		 552static int hidinput_setup_battery(struct hid_device *dev, unsigned report_type,
553 struct hid_field *field)
4f5ca836 554{
581c4484 555 return 0;
4f5ca836
JF		 556}
557
558static void hidinput_cleanup_battery(struct hid_device *dev)
559{
560}
581c4484
DT		 561
562static void hidinput_update_battery(struct hid_device *dev, int value)
563{
564}
4f5ca836
JF		 565#endif /* CONFIG_HID_BATTERY_STRENGTH */
566
dde5845a
JK		 567static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
568 struct hid_usage *usage)
569{
570 struct input_dev *input = hidinput->input;
e0712985 571 struct hid_device *device = input_get_drvdata(input);
3715ade9 572 int max = 0, code;
dde5845a
JK		 573 unsigned long *bit = NULL;
574
575 field->hidinput = hidinput;
576
dde5845a
JK		 577 if (field->flags & HID_MAIN_ITEM_CONSTANT)
578 goto ignore;
579
cc6b54aa
BT		 580 /* Ignore if report count is out of bounds. */
581 if (field->report_count < 1)
582 goto ignore;
583
82eb1219
JK		 584 /* only LED usages are supported in output fields */
585 if (field->report_type == HID_OUTPUT_REPORT &&
586 (usage->hid & HID_USAGE_PAGE) != HID_UP_LED) {
82eb1219
JK		 587 goto ignore;
588 }
589
c500c971
JS		 590 if (device->driver->input_mapping) {
591 int ret = device->driver->input_mapping(device, hidinput, field,
592 usage, &bit, &max);
593 if (ret > 0)
594 goto mapped;
595 if (ret < 0)
596 goto ignore;
597 }
598
dde5845a 599 switch (usage->hid & HID_USAGE_PAGE) {
880d29f1
JS		 600 case HID_UP_UNDEFINED:
601 goto ignore;
dde5845a 602
880d29f1
JS		 603 case HID_UP_KEYBOARD:
604 set_bit(EV_REP, input->evbit);
dde5845a 605
880d29f1
JS		 606 if ((usage->hid & HID_USAGE) < 256) {
607 if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
608 map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
609 } else
610 map_key(KEY_UNKNOWN);
dde5845a 611
880d29f1 612 break;
dde5845a 613
880d29f1 614 case HID_UP_BUTTON:
7f978b9b 615 code = ((usage->hid - 1) & HID_USAGE);
dde5845a 616
880d29f1
JS		 617 switch (field->application) {
618 case HID_GD_MOUSE:
1874542d 619 case HID_GD_POINTER: code += BTN_MOUSE; break;
cf2f765f 620 case HID_GD_JOYSTICK:
fc99f22c
DM		 621 if (code <= 0xf)
622 code += BTN_JOYSTICK;
623 else
f8e86d05
IR		 624 code += BTN_TRIGGER_HAPPY - 0x10;
625 break;
626 case HID_GD_GAMEPAD:
627 if (code <= 0xf)
628 code += BTN_GAMEPAD;
629 else
630 code += BTN_TRIGGER_HAPPY - 0x10;
fc99f22c 631 break;
880d29f1
JS		 632 default:
633 switch (field->physical) {
634 case HID_GD_MOUSE:
1874542d
FF		 635 case HID_GD_POINTER: code += BTN_MOUSE; break;
636 case HID_GD_JOYSTICK: code += BTN_JOYSTICK; break;
637 case HID_GD_GAMEPAD: code += BTN_GAMEPAD; break;
638 default: code += BTN_MISC;
dde5845a 639 }
880d29f1 640 }
dde5845a 641
880d29f1
JS		 642 map_key(code);
643 break;
644
645 case HID_UP_SIMULATION:
646 switch (usage->hid & 0xffff) {
647 case 0xba: map_abs(ABS_RUDDER); break;
648 case 0xbb: map_abs(ABS_THROTTLE); break;
649 case 0xc4: map_abs(ABS_GAS); break;
650 case 0xc5: map_abs(ABS_BRAKE); break;
651 case 0xc8: map_abs(ABS_WHEEL); break;
652 default: goto ignore;
653 }
654 break;
655
656 case HID_UP_GENDESK:
657 if ((usage->hid & 0xf0) == 0x80) { /* SystemControl */
658 switch (usage->hid & 0xf) {
659 case 0x1: map_key_clear(KEY_POWER); break;
660 case 0x2: map_key_clear(KEY_SLEEP); break;
661 case 0x3: map_key_clear(KEY_WAKEUP); break;
437f3b19
JW		 662 case 0x4: map_key_clear(KEY_CONTEXT_MENU); break;
663 case 0x5: map_key_clear(KEY_MENU); break;
664 case 0x6: map_key_clear(KEY_PROG1); break;
665 case 0x7: map_key_clear(KEY_HELP); break;
666 case 0x8: map_key_clear(KEY_EXIT); break;
667 case 0x9: map_key_clear(KEY_SELECT); break;
668 case 0xa: map_key_clear(KEY_RIGHT); break;
669 case 0xb: map_key_clear(KEY_LEFT); break;
670 case 0xc: map_key_clear(KEY_UP); break;
671 case 0xd: map_key_clear(KEY_DOWN); break;
672 case 0xe: map_key_clear(KEY_POWER2); break;
673 case 0xf: map_key_clear(KEY_RESTART); break;
880d29f1 674 default: goto unknown;
dde5845a
JK		 675 }
676 break;
880d29f1 677 }
dde5845a 678
c01908a1
DT		 679 if ((usage->hid & 0xf0) == 0xb0) { /* SC - Display */
680 switch (usage->hid & 0xf) {
681 case 0x05: map_key_clear(KEY_SWITCHVIDEOMODE); break;
682 default: goto ignore;
683 }
684 break;
685 }
686
1989dada
BT		 687 /*
688 * Some lazy vendors declare 255 usages for System Control,
689 * leading to the creation of ABS_X|Y axis and too many others.
690 * It wouldn't be a problem if joydev doesn't consider the
691 * device as a joystick then.
692 */
693 if (field->application == HID_GD_SYSTEM_CONTROL)
694 goto ignore;
695
880d29f1 696 if ((usage->hid & 0xf0) == 0x90) { /* D-pad */
dde5845a 697 switch (usage->hid) {
880d29f1
JS		 698 case HID_GD_UP: usage->hat_dir = 1; break;
699 case HID_GD_DOWN: usage->hat_dir = 5; break;
700 case HID_GD_RIGHT: usage->hat_dir = 3; break;
701 case HID_GD_LEFT: usage->hat_dir = 7; break;
702 default: goto unknown;
dde5845a 703 }
880d29f1
JS		 704 if (field->dpad) {
705 map_abs(field->dpad);
706 goto ignore;
d4ae650a 707 }
880d29f1 708 map_abs(ABS_HAT0X);
dde5845a 709 break;
880d29f1 710 }
dde5845a 711
880d29f1
JS		 712 switch (usage->hid) {
713 /* These usage IDs map directly to the usage codes. */
714 case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
715 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
79346d62
BT		 716 if (field->flags & HID_MAIN_ITEM_RELATIVE)
717 map_rel(usage->hid & 0xf);
718 else
719 map_abs_clear(usage->hid & 0xf);
720 break;
721
2dc702c9
PH		 722 case HID_GD_WHEEL:
723 if (field->flags & HID_MAIN_ITEM_RELATIVE) {
724 set_bit(REL_WHEEL, input->relbit);
725 map_rel(REL_WHEEL_HI_RES);
726 } else {
727 map_abs(usage->hid & 0xf);
728 }
729 break;
730 case HID_GD_SLIDER: case HID_GD_DIAL:
880d29f1
JS		 731 if (field->flags & HID_MAIN_ITEM_RELATIVE)
732 map_rel(usage->hid & 0xf);
733 else
734 map_abs(usage->hid & 0xf);
735 break;
dde5845a 736
880d29f1
JS		 737 case HID_GD_HATSWITCH:
738 usage->hat_min = field->logical_minimum;
739 usage->hat_max = field->logical_maximum;
740 map_abs(ABS_HAT0X);
741 break;
dde5845a 742
880d29f1
JS		 743 case HID_GD_START: map_key_clear(BTN_START); break;
744 case HID_GD_SELECT: map_key_clear(BTN_SELECT); break;
dde5845a 745
61df56be
HG		 746 case HID_GD_RFKILL_BTN:
747 /* MS wireless radio ctl extension, also check CA */
6e7edabf 748 if (field->application == HID_GD_WIRELESS_RADIO_CTLS) {
61df56be
HG		 749 map_key_clear(KEY_RFKILL);
750 /* We need to simulate the btn release */
751 field->flags |= HID_MAIN_ITEM_RELATIVE;
752 break;
753 }
6b554275 754 goto unknown;
61df56be 755
880d29f1
JS		 756 default: goto unknown;
757 }
dde5845a 758
880d29f1
JS		 759 break;
760
761 case HID_UP_LED:
762 switch (usage->hid & 0xffff) { /* HID-Value: */
763 case 0x01: map_led (LED_NUML); break; /* "Num Lock" */
764 case 0x02: map_led (LED_CAPSL); break; /* "Caps Lock" */
765 case 0x03: map_led (LED_SCROLLL); break; /* "Scroll Lock" */
766 case 0x04: map_led (LED_COMPOSE); break; /* "Compose" */
767 case 0x05: map_led (LED_KANA); break; /* "Kana" */
768 case 0x27: map_led (LED_SLEEP); break; /* "Stand-By" */
769 case 0x4c: map_led (LED_SUSPEND); break; /* "System Suspend" */
770 case 0x09: map_led (LED_MUTE); break; /* "Mute" */
771 case 0x4b: map_led (LED_MISC); break; /* "Generic Indicator" */
772 case 0x19: map_led (LED_MAIL); break; /* "Message Waiting" */
773 case 0x4d: map_led (LED_CHARGING); break; /* "External Power Connected" */
774
775 default: goto ignore;
776 }
777 break;
778
779 case HID_UP_DIGITIZER:
8473a93d
TT		 780 if ((field->application & 0xff) == 0x01) /* Digitizer */
781 __set_bit(INPUT_PROP_POINTER, input->propbit);
782 else if ((field->application & 0xff) == 0x02) /* Pen */
783 __set_bit(INPUT_PROP_DIRECT, input->propbit);
784
880d29f1 785 switch (usage->hid & 0xff) {
8c8b01c3
FB		 786 case 0x00: /* Undefined */
787 goto ignore;
788
880d29f1
JS		 789 case 0x30: /* TipPressure */
790 if (!test_bit(BTN_TOUCH, input->keybit)) {
791 device->quirks |= HID_QUIRK_NOTOUCH;
792 set_bit(EV_KEY, input->evbit);
793 set_bit(BTN_TOUCH, input->keybit);
dde5845a 794 }
880d29f1 795 map_abs_clear(ABS_PRESSURE);
dde5845a
JK		 796 break;
797
880d29f1
JS		 798 case 0x32: /* InRange */
799 switch (field->physical & 0xff) {
800 case 0x21: map_key(BTN_TOOL_MOUSE); break;
801 case 0x22: map_key(BTN_TOOL_FINGER); break;
802 default: map_key(BTN_TOOL_PEN); break;
dde5845a
JK		 803 }
804 break;
805
581c4484
DT		 806 case 0x3b: /* Battery Strength */
807 hidinput_setup_battery(device, HID_INPUT_REPORT, field);
808 usage->type = EV_PWR;
505f394f 809 return;
581c4484 810
880d29f1
JS		 811 case 0x3c: /* Invert */
812 map_key_clear(BTN_TOOL_RUBBER);
dde5845a
JK		 813 break;
814
b73b2da0
NK		 815 case 0x3d: /* X Tilt */
816 map_abs_clear(ABS_TILT_X);
817 break;
818
819 case 0x3e: /* Y Tilt */
820 map_abs_clear(ABS_TILT_Y);
821 break;
822
880d29f1
JS		 823 case 0x33: /* Touch */
824 case 0x42: /* TipSwitch */
825 case 0x43: /* TipSwitch2 */
826 device->quirks &= ~HID_QUIRK_NOTOUCH;
827 map_key_clear(BTN_TOUCH);
828 break;
dde5845a 829
880d29f1
JS		 830 case 0x44: /* BarrelSwitch */
831 map_key_clear(BTN_STYLUS);
832 break;
dde5845a 833
654c192a
PC		 834 case 0x45: /* ERASER */
835 /*
836 * This event is reported when eraser tip touches the surface.
837 * Actual eraser (BTN_TOOL_RUBBER) is set by Invert usage when
838 * tool gets in proximity.
839 */
840 map_key_clear(BTN_TOUCH);
841 break;
842
50b63697 843 case 0x46: /* TabletPick */
368c9664 844 case 0x5a: /* SecondaryBarrelSwitch */
50b63697
NK		 845 map_key_clear(BTN_STYLUS2);
846 break;
847
368c9664 848 case 0x5b: /* TransducerSerialNumber */
5989a55a
JG		 849 usage->type = EV_MSC;
850 usage->code = MSC_SERIAL;
851 bit = input->mscbit;
852 max = MSC_MAX;
368c9664
PC		 853 break;
854
880d29f1
JS		 855 default: goto unknown;
856 }
857 break;
858
f3dddf24
DT		 859 case HID_UP_TELEPHONY:
860 switch (usage->hid & HID_USAGE) {
861 case 0x2f: map_key_clear(KEY_MICMUTE); break;
862 case 0xb0: map_key_clear(KEY_NUMERIC_0); break;
863 case 0xb1: map_key_clear(KEY_NUMERIC_1); break;
864 case 0xb2: map_key_clear(KEY_NUMERIC_2); break;
865 case 0xb3: map_key_clear(KEY_NUMERIC_3); break;
866 case 0xb4: map_key_clear(KEY_NUMERIC_4); break;
867 case 0xb5: map_key_clear(KEY_NUMERIC_5); break;
868 case 0xb6: map_key_clear(KEY_NUMERIC_6); break;
869 case 0xb7: map_key_clear(KEY_NUMERIC_7); break;
870 case 0xb8: map_key_clear(KEY_NUMERIC_8); break;
871 case 0xb9: map_key_clear(KEY_NUMERIC_9); break;
872 case 0xba: map_key_clear(KEY_NUMERIC_STAR); break;
873 case 0xbb: map_key_clear(KEY_NUMERIC_POUND); break;
874 case 0xbc: map_key_clear(KEY_NUMERIC_A); break;
875 case 0xbd: map_key_clear(KEY_NUMERIC_B); break;
876 case 0xbe: map_key_clear(KEY_NUMERIC_C); break;
877 case 0xbf: map_key_clear(KEY_NUMERIC_D); break;
878 default: goto ignore;
879 }
880 break;
881
437f3b19 882 case HID_UP_CONSUMER: /* USB HUT v1.12, pages 75-84 */
880d29f1
JS		 883 switch (usage->hid & HID_USAGE) {
884 case 0x000: goto ignore;
437f3b19
JW		 885 case 0x030: map_key_clear(KEY_POWER); break;
886 case 0x031: map_key_clear(KEY_RESTART); break;
887 case 0x032: map_key_clear(KEY_SLEEP); break;
880d29f1 888 case 0x034: map_key_clear(KEY_SLEEP); break;
437f3b19 889 case 0x035: map_key_clear(KEY_KBDILLUMTOGGLE); break;
880d29f1
JS		 890 case 0x036: map_key_clear(BTN_MISC); break;
891
437f3b19
JW		 892 case 0x040: map_key_clear(KEY_MENU); break; /* Menu */
893 case 0x041: map_key_clear(KEY_SELECT); break; /* Menu Pick */
894 case 0x042: map_key_clear(KEY_UP); break; /* Menu Up */
895 case 0x043: map_key_clear(KEY_DOWN); break; /* Menu Down */
896 case 0x044: map_key_clear(KEY_LEFT); break; /* Menu Left */
897 case 0x045: map_key_clear(KEY_RIGHT); break; /* Menu Right */
898 case 0x046: map_key_clear(KEY_ESC); break; /* Menu Escape */
899 case 0x047: map_key_clear(KEY_KPPLUS); break; /* Menu Value Increase */
900 case 0x048: map_key_clear(KEY_KPMINUS); break; /* Menu Value Decrease */
901
902 case 0x060: map_key_clear(KEY_INFO); break; /* Data On Screen */
903 case 0x061: map_key_clear(KEY_SUBTITLE); break; /* Closed Caption */
904 case 0x063: map_key_clear(KEY_VCR); break; /* VCR/TV */
905 case 0x065: map_key_clear(KEY_CAMERA); break; /* Snapshot */
906 case 0x069: map_key_clear(KEY_RED); break;
907 case 0x06a: map_key_clear(KEY_GREEN); break;
908 case 0x06b: map_key_clear(KEY_BLUE); break;
909 case 0x06c: map_key_clear(KEY_YELLOW); break;
f7b3d85a 910 case 0x06d: map_key_clear(KEY_ASPECT_RATIO); break;
437f3b19 911
f362e690
OG		 912 case 0x06f: map_key_clear(KEY_BRIGHTNESSUP); break;
913 case 0x070: map_key_clear(KEY_BRIGHTNESSDOWN); break;
914 case 0x072: map_key_clear(KEY_BRIGHTNESS_TOGGLE); break;
915 case 0x073: map_key_clear(KEY_BRIGHTNESS_MIN); break;
916 case 0x074: map_key_clear(KEY_BRIGHTNESS_MAX); break;
917 case 0x075: map_key_clear(KEY_BRIGHTNESS_AUTO); break;
918
7975a1d6
DT		 919 case 0x079: map_key_clear(KEY_KBDILLUMUP); break;
920 case 0x07a: map_key_clear(KEY_KBDILLUMDOWN); break;
921 case 0x07c: map_key_clear(KEY_KBDILLUMTOGGLE); break;
922
437f3b19 923 case 0x082: map_key_clear(KEY_VIDEO_NEXT); break;
880d29f1 924 case 0x083: map_key_clear(KEY_LAST); break;
437f3b19 925 case 0x084: map_key_clear(KEY_ENTER); break;
880d29f1
JS		 926 case 0x088: map_key_clear(KEY_PC); break;
927 case 0x089: map_key_clear(KEY_TV); break;
928 case 0x08a: map_key_clear(KEY_WWW); break;
929 case 0x08b: map_key_clear(KEY_DVD); break;
930 case 0x08c: map_key_clear(KEY_PHONE); break;
931 case 0x08d: map_key_clear(KEY_PROGRAM); break;
932 case 0x08e: map_key_clear(KEY_VIDEOPHONE); break;
933 case 0x08f: map_key_clear(KEY_GAMES); break;
934 case 0x090: map_key_clear(KEY_MEMO); break;
935 case 0x091: map_key_clear(KEY_CD); break;
936 case 0x092: map_key_clear(KEY_VCR); break;
937 case 0x093: map_key_clear(KEY_TUNER); break;
938 case 0x094: map_key_clear(KEY_EXIT); break;
939 case 0x095: map_key_clear(KEY_HELP); break;
940 case 0x096: map_key_clear(KEY_TAPE); break;
941 case 0x097: map_key_clear(KEY_TV2); break;
942 case 0x098: map_key_clear(KEY_SAT); break;
943 case 0x09a: map_key_clear(KEY_PVR); break;
944
945 case 0x09c: map_key_clear(KEY_CHANNELUP); break;
946 case 0x09d: map_key_clear(KEY_CHANNELDOWN); break;
947 case 0x0a0: map_key_clear(KEY_VCR2); break;
948
949 case 0x0b0: map_key_clear(KEY_PLAY); break;
950 case 0x0b1: map_key_clear(KEY_PAUSE); break;
951 case 0x0b2: map_key_clear(KEY_RECORD); break;
952 case 0x0b3: map_key_clear(KEY_FASTFORWARD); break;
953 case 0x0b4: map_key_clear(KEY_REWIND); break;
954 case 0x0b5: map_key_clear(KEY_NEXTSONG); break;
955 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG); break;
956 case 0x0b7: map_key_clear(KEY_STOPCD); break;
957 case 0x0b8: map_key_clear(KEY_EJECTCD); break;
958 case 0x0bc: map_key_clear(KEY_MEDIA_REPEAT); break;
437f3b19
JW		 959 case 0x0b9: map_key_clear(KEY_SHUFFLE); break;
960 case 0x0bf: map_key_clear(KEY_SLOW); break;
880d29f1
JS		 961
962 case 0x0cd: map_key_clear(KEY_PLAYPAUSE); break;
f362e690 963 case 0x0cf: map_key_clear(KEY_VOICECOMMAND); break;
880d29f1
JS		 964 case 0x0e0: map_abs_clear(ABS_VOLUME); break;
965 case 0x0e2: map_key_clear(KEY_MUTE); break;
966 case 0x0e5: map_key_clear(KEY_BASSBOOST); break;
967 case 0x0e9: map_key_clear(KEY_VOLUMEUP); break;
968 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN); break;
437f3b19 969 case 0x0f5: map_key_clear(KEY_SLOW); break;
880d29f1 970
f362e690 971 case 0x181: map_key_clear(KEY_BUTTONCONFIG); break;
880d29f1
JS		 972 case 0x182: map_key_clear(KEY_BOOKMARKS); break;
973 case 0x183: map_key_clear(KEY_CONFIG); break;
974 case 0x184: map_key_clear(KEY_WORDPROCESSOR); break;
975 case 0x185: map_key_clear(KEY_EDITOR); break;
976 case 0x186: map_key_clear(KEY_SPREADSHEET); break;
977 case 0x187: map_key_clear(KEY_GRAPHICSEDITOR); break;
978 case 0x188: map_key_clear(KEY_PRESENTATION); break;
979 case 0x189: map_key_clear(KEY_DATABASE); break;
980 case 0x18a: map_key_clear(KEY_MAIL); break;
981 case 0x18b: map_key_clear(KEY_NEWS); break;
982 case 0x18c: map_key_clear(KEY_VOICEMAIL); break;
983 case 0x18d: map_key_clear(KEY_ADDRESSBOOK); break;
984 case 0x18e: map_key_clear(KEY_CALENDAR); break;
f362e690
OG		 985 case 0x18f: map_key_clear(KEY_TASKMANAGER); break;
986 case 0x190: map_key_clear(KEY_JOURNAL); break;
880d29f1
JS		 987 case 0x191: map_key_clear(KEY_FINANCE); break;
988 case 0x192: map_key_clear(KEY_CALC); break;
437f3b19 989 case 0x193: map_key_clear(KEY_PLAYER); break;
880d29f1
JS		 990 case 0x194: map_key_clear(KEY_FILE); break;
991 case 0x196: map_key_clear(KEY_WWW); break;
0690535d 992 case 0x199: map_key_clear(KEY_CHAT); break;
880d29f1
JS		 993 case 0x19c: map_key_clear(KEY_LOGOFF); break;
994 case 0x19e: map_key_clear(KEY_COFFEE); break;
f362e690
OG		 995 case 0x19f: map_key_clear(KEY_CONTROLPANEL); break;
996 case 0x1a2: map_key_clear(KEY_APPSELECT); break;
5820e4d4
HG		 997 case 0x1a3: map_key_clear(KEY_NEXT); break;
998 case 0x1a4: map_key_clear(KEY_PREVIOUS); break;
880d29f1
JS		 999 case 0x1a6: map_key_clear(KEY_HELP); break;
1000 case 0x1a7: map_key_clear(KEY_DOCUMENTS); break;
1001 case 0x1ab: map_key_clear(KEY_SPELLCHECK); break;
437f3b19 1002 case 0x1ae: map_key_clear(KEY_KEYBOARD); break;
f362e690 1003 case 0x1b1: map_key_clear(KEY_SCREENSAVER); break;
5820e4d4 1004 case 0x1b4: map_key_clear(KEY_FILE); break;
437f3b19
JW		 1005 case 0x1b6: map_key_clear(KEY_IMAGES); break;
1006 case 0x1b7: map_key_clear(KEY_AUDIO); break;
1007 case 0x1b8: map_key_clear(KEY_VIDEO); break;
880d29f1
JS		 1008 case 0x1bc: map_key_clear(KEY_MESSENGER); break;
1009 case 0x1bd: map_key_clear(KEY_INFO); break;
ce856634 1010 case 0x1cb: map_key_clear(KEY_ASSISTANT); break;
880d29f1
JS		 1011 case 0x201: map_key_clear(KEY_NEW); break;
1012 case 0x202: map_key_clear(KEY_OPEN); break;
1013 case 0x203: map_key_clear(KEY_CLOSE); break;
1014 case 0x204: map_key_clear(KEY_EXIT); break;
1015 case 0x207: map_key_clear(KEY_SAVE); break;
1016 case 0x208: map_key_clear(KEY_PRINT); break;
1017 case 0x209: map_key_clear(KEY_PROPS); break;
1018 case 0x21a: map_key_clear(KEY_UNDO); break;
1019 case 0x21b: map_key_clear(KEY_COPY); break;
1020 case 0x21c: map_key_clear(KEY_CUT); break;
1021 case 0x21d: map_key_clear(KEY_PASTE); break;
1022 case 0x21f: map_key_clear(KEY_FIND); break;
1023 case 0x221: map_key_clear(KEY_SEARCH); break;
1024 case 0x222: map_key_clear(KEY_GOTO); break;
1025 case 0x223: map_key_clear(KEY_HOMEPAGE); break;
1026 case 0x224: map_key_clear(KEY_BACK); break;
1027 case 0x225: map_key_clear(KEY_FORWARD); break;
1028 case 0x226: map_key_clear(KEY_STOP); break;
1029 case 0x227: map_key_clear(KEY_REFRESH); break;
1030 case 0x22a: map_key_clear(KEY_BOOKMARKS); break;
1031 case 0x22d: map_key_clear(KEY_ZOOMIN); break;
1032 case 0x22e: map_key_clear(KEY_ZOOMOUT); break;
1033 case 0x22f: map_key_clear(KEY_ZOOMRESET); break;
afbbaa1b 1034 case 0x232: map_key_clear(KEY_FULL_SCREEN); break;
880d29f1
JS		 1035 case 0x233: map_key_clear(KEY_SCROLLUP); break;
1036 case 0x234: map_key_clear(KEY_SCROLLDOWN); break;
2dc702c9
PH		 1037 case 0x238: /* AC Pan */
1038 set_bit(REL_HWHEEL, input->relbit);
1039 map_rel(REL_HWHEEL_HI_RES);
1040 break;
437f3b19 1041 case 0x23d: map_key_clear(KEY_EDIT); break;
880d29f1 1042 case 0x25f: map_key_clear(KEY_CANCEL); break;
437f3b19
JW		 1043 case 0x269: map_key_clear(KEY_INSERT); break;
1044 case 0x26a: map_key_clear(KEY_DELETE); break;
880d29f1
JS		 1045 case 0x279: map_key_clear(KEY_REDO); break;
1046
1047 case 0x289: map_key_clear(KEY_REPLY); break;
1048 case 0x28b: map_key_clear(KEY_FORWARDMAIL); break;
1049 case 0x28c: map_key_clear(KEY_SEND); break;
1050
bd21d847
DT		 1051 case 0x29d: map_key_clear(KEY_KBD_LAYOUT_NEXT); break;
1052
f974008f
OG		 1053 case 0x2c7: map_key_clear(KEY_KBDINPUTASSIST_PREV); break;
1054 case 0x2c8: map_key_clear(KEY_KBDINPUTASSIST_NEXT); break;
1055 case 0x2c9: map_key_clear(KEY_KBDINPUTASSIST_PREVGROUP); break;
1056 case 0x2ca: map_key_clear(KEY_KBDINPUTASSIST_NEXTGROUP); break;
1057 case 0x2cb: map_key_clear(KEY_KBDINPUTASSIST_ACCEPT); break;
1058 case 0x2cc: map_key_clear(KEY_KBDINPUTASSIST_CANCEL); break;
1059
96dd8687
DT		 1060 case 0x29f: map_key_clear(KEY_SCALE); break;
1061
afdb5cce 1062 default: map_key_clear(KEY_UNKNOWN);
880d29f1
JS		 1063 }
1064 break;
1065
4f5ca836 1066 case HID_UP_GENDEVCTRLS:
581c4484
DT		 1067 switch (usage->hid) {
1068 case HID_DC_BATTERYSTRENGTH:
1069 hidinput_setup_battery(device, HID_INPUT_REPORT, field);
1070 usage->type = EV_PWR;
505f394f 1071 return;
581c4484
DT		 1072 }
1073 goto unknown;
4f5ca836 1074
880d29f1
JS		 1075 case HID_UP_HPVENDOR: /* Reported on a Dutch layout HP5308 */
1076 set_bit(EV_REP, input->evbit);
1077 switch (usage->hid & HID_USAGE) {
1078 case 0x021: map_key_clear(KEY_PRINT); break;
1079 case 0x070: map_key_clear(KEY_HP); break;
1080 case 0x071: map_key_clear(KEY_CAMERA); break;
1081 case 0x072: map_key_clear(KEY_SOUND); break;
1082 case 0x073: map_key_clear(KEY_QUESTION); break;
1083 case 0x080: map_key_clear(KEY_EMAIL); break;
1084 case 0x081: map_key_clear(KEY_CHAT); break;
1085 case 0x082: map_key_clear(KEY_SEARCH); break;
1086 case 0x083: map_key_clear(KEY_CONNECT); break;
1087 case 0x084: map_key_clear(KEY_FINANCE); break;
1088 case 0x085: map_key_clear(KEY_SPORT); break;
1089 case 0x086: map_key_clear(KEY_SHOP); break;
929578ab
KYL		 1090 default: goto ignore;
1091 }
1092 break;
1093
1094 case HID_UP_HPVENDOR2:
1095 set_bit(EV_REP, input->evbit);
1096 switch (usage->hid & HID_USAGE) {
08fc9473 1097 case 0x001: map_key_clear(KEY_MICMUTE); break;
929578ab
KYL		 1098 case 0x003: map_key_clear(KEY_BRIGHTNESSDOWN); break;
1099 case 0x004: map_key_clear(KEY_BRIGHTNESSUP); break;
880d29f1
JS		 1100 default: goto ignore;
1101 }
1102 break;
dde5845a 1103
880d29f1
JS		 1104 case HID_UP_MSVENDOR:
1105 goto ignore;
dde5845a 1106
880d29f1
JS		 1107 case HID_UP_CUSTOM: /* Reported on Logitech and Apple USB keyboards */
1108 set_bit(EV_REP, input->evbit);
1109 goto ignore;
dde5845a 1110
880d29f1 1111 case HID_UP_LOGIVENDOR:
b466c1dd
SW		 1112 /* intentional fallback */
1113 case HID_UP_LOGIVENDOR2:
1114 /* intentional fallback */
1115 case HID_UP_LOGIVENDOR3:
880d29f1 1116 goto ignore;
fc99f22c 1117
880d29f1
JS		 1118 case HID_UP_PID:
1119 switch (usage->hid & HID_USAGE) {
1120 case 0xa4: map_key_clear(BTN_DEAD); break;
1121 default: goto ignore;
1122 }
1123 break;
dde5845a 1124
880d29f1
JS		 1125 default:
1126 unknown:
1127 if (field->report_size == 1) {
1128 if (field->report->type == HID_OUTPUT_REPORT) {
1129 map_led(LED_MISC);
dde5845a
JK		 1130 break;
1131 }
880d29f1 1132 map_key(BTN_MISC);
dde5845a 1133 break;
880d29f1
JS		 1134 }
1135 if (field->flags & HID_MAIN_ITEM_RELATIVE) {
1136 map_rel(REL_MISC);
1137 break;
1138 }
1139 map_abs(ABS_MISC);
1140 break;
dde5845a
JK		 1141 }
1142
10bd065f 1143mapped:
35556bed
MZ		 1144 /* Mapping failed, bail out */
1145 if (!bit)
1146 return;
1147
4f388217
DT		 1148 if (device->driver->input_mapped &&
1149 device->driver->input_mapped(device, hidinput, field, usage,
1150 &bit, &max) < 0) {
1151 /*
1152 * The driver indicated that no further generic handling
1153 * of the usage is desired.
1154 */
1155 return;
1156 }
c500c971 1157
dde5845a
JK		 1158 set_bit(usage->type, input->evbit);
1159
190d7f02
BT		 1160 /*
1161 * This part is *really* controversial:
1162 * - HID aims at being generic so we should do our best to export
1163 * all incoming events
1164 * - HID describes what events are, so there is no reason for ABS_X
1165 * to be mapped to ABS_Y
1166 * - HID is using *_MISC+N as a default value, but nothing prevents
1167 * *_MISC+N to overwrite a legitimate even, which confuses userspace
1168 * (for instance ABS_MISC + 7 is ABS_MT_SLOT, which has a different
1169 * processing)
1170 *
1171 * If devices still want to use this (at their own risk), they will
1172 * have to use the quirk HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE, but
1173 * the default should be a reliable mapping.
1174 */
1175 while (usage->code <= max && test_and_set_bit(usage->code, bit)) {
1176 if (device->quirks & HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE) {
1177 usage->code = find_next_zero_bit(bit,
1178 max + 1,
1179 usage->code);
1180 } else {
1181 device->status |= HID_STAT_DUP_DETECTED;
1182 goto ignore;
1183 }
1184 }
dde5845a
JK		 1185
1186 if (usage->code > max)
1187 goto ignore;
1188
dde5845a
JK		 1189 if (usage->type == EV_ABS) {
1190
1191 int a = field->logical_minimum;
1192 int b = field->logical_maximum;
1193
1194 if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
1195 a = field->logical_minimum = 0;
1196 b = field->logical_maximum = 255;
1197 }
1198
1199 if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
1200 input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
1201 else input_set_abs_params(input, usage->code, a, b, 0, 0);
1202
4ea6e4ff
NK		 1203 input_abs_set_res(input, usage->code,
1204 hidinput_calc_abs_res(field, usage->code));
1205
6967b4d9
HR		 1206 /* use a larger default input buffer for MT devices */
1207 if (usage->code == ABS_MT_POSITION_X && input->hint_events_per_packet == 0)
1208 input_set_events_per_packet(input, 60);
dde5845a
JK		 1209 }
1210
1211 if (usage->type == EV_ABS &&
1212 (usage->hat_min < usage->hat_max || usage->hat_dir)) {
1213 int i;
1214 for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
1215 input_set_abs_params(input, i, -1, 1, 0, 0);
1216 set_bit(i, input->absbit);
1217 }
1218 if (usage->hat_dir && !field->dpad)
1219 field->dpad = usage->code;
1220 }
1221
2c1d8aea
JK		 1222 /* for those devices which produce Consumer volume usage as relative,
1223 * we emulate pressing volumeup/volumedown appropriate number of times
1224 * in hidinput_hid_event()
1225 */
1226 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
1227 (usage->code == ABS_VOLUME)) {
1228 set_bit(KEY_VOLUMEUP, input->keybit);
1229 set_bit(KEY_VOLUMEDOWN, input->keybit);
1230 }
1231
c01d50d1
JK		 1232 if (usage->type == EV_KEY) {
1233 set_bit(EV_MSC, input->evbit);
1234 set_bit(MSC_SCAN, input->mscbit);
1235 }
1236
dde5845a 1237 return;
a635f9dd 1238
4f388217
DT		 1239ignore:
1240 usage->type = 0;
1241 usage->code = 0;
dde5845a
JK		 1242}
1243
2dc702c9
PH		 1244static void hidinput_handle_scroll(struct hid_usage *usage,
1245 struct input_dev *input,
1246 __s32 value)
1247{
1248 int code;
1249 int hi_res, lo_res;
1250
1251 if (value == 0)
1252 return;
1253
1254 if (usage->code == REL_WHEEL_HI_RES)
1255 code = REL_WHEEL;
1256 else
1257 code = REL_HWHEEL;
1258
1259 /*
1260 * Windows reports one wheel click as value 120. Where a high-res
1261 * scroll wheel is present, a fraction of 120 is reported instead.
1262 * Our REL_WHEEL_HI_RES axis does the same because all HW must
1263 * adhere to the 120 expectation.
1264 */
1265 hi_res = value * 120/usage->resolution_multiplier;
1266
1267 usage->wheel_accumulated += hi_res;
1268 lo_res = usage->wheel_accumulated/120;
1269 if (lo_res)
1270 usage->wheel_accumulated -= lo_res * 120;
1271
1272 input_event(input, EV_REL, code, lo_res);
1273 input_event(input, EV_REL, usage->code, hi_res);
1274}
1275
dde5845a
JK		 1276void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
1277{
1278 struct input_dev *input;
b4482a4b 1279 unsigned *quirks = &hid->quirks;
dde5845a 1280
581c4484 1281 if (!usage->type)
dde5845a
JK		 1282 return;
1283
581c4484
DT		 1284 if (usage->type == EV_PWR) {
1285 hidinput_update_battery(hid, value);
1286 return;
1287 }
dde5845a 1288
581c4484 1289 if (!field->hidinput)
dde5845a
JK		 1290 return;
1291
581c4484
DT		 1292 input = field->hidinput->input;
1293
dde5845a
JK		 1294 if (usage->hat_min < usage->hat_max || usage->hat_dir) {
1295 int hat_dir = usage->hat_dir;
1296 if (!hat_dir)
1297 hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
1298 if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
1299 input_event(input, usage->type, usage->code , hid_hat_to_axis[hat_dir].x);
fc99f22c
DM		 1300 input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
1301 return;
1302 }
dde5845a
JK		 1303
1304 if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */
1305 *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
1306 return;
1307 }
1308
1309 if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */
1310 if (value) {
1311 input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
1312 return;
1313 }
1314 input_event(input, usage->type, usage->code, 0);
1315 input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
1316 return;
1317 }
1318
1319 if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */
1320 int a = field->logical_minimum;
1321 int b = field->logical_maximum;
1322 input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3));
1323 }
1324
1325 if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
58037eb9 1326 dbg_hid("Maximum Effects - %d\n",value);
dde5845a
JK		 1327 return;
1328 }
1329
1330 if (usage->hid == (HID_UP_PID | 0x7fUL)) {
58037eb9 1331 dbg_hid("PID Pool Report\n");
dde5845a
JK		 1332 return;
1333 }
1334
1335 if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
1336 return;
1337
2dc702c9
PH		 1338 if ((usage->type == EV_REL) && (usage->code == REL_WHEEL_HI_RES ||
1339 usage->code == REL_HWHEEL_HI_RES)) {
1340 hidinput_handle_scroll(usage, input, value);
1341 return;
1342 }
1343
2c1d8aea
JK		 1344 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
1345 (usage->code == ABS_VOLUME)) {
1346 int count = abs(value);
1347 int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN;
1348 int i;
1349
1350 for (i = 0; i < count; i++) {
1351 input_event(input, EV_KEY, direction, 1);
1352 input_sync(input);
1353 input_event(input, EV_KEY, direction, 0);
1354 input_sync(input);
1355 }
1356 return;
1357 }
1358
883e0e36
NK		 1359 /*
1360 * Ignore out-of-range values as per HID specification,
c3883fe0
TK		 1361 * section 5.10 and 6.2.25, when NULL state bit is present.
1362 * When it's not, clamp the value to match Microsoft's input
1363 * driver as mentioned in "Required HID usages for digitizers":
1364 * https://msdn.microsoft.com/en-us/library/windows/hardware/dn672278(v=vs.85).asp
a688393b
JK		 1365 *
1366 * The logical_minimum < logical_maximum check is done so that we
1367 * don't unintentionally discard values sent by devices which
1368 * don't specify logical min and max.
883e0e36
NK		 1369 */
1370 if ((field->flags & HID_MAIN_ITEM_VARIABLE) &&
c3883fe0
TK		 1371 (field->logical_minimum < field->logical_maximum)) {
1372 if (field->flags & HID_MAIN_ITEM_NULL_STATE &&
1373 (value < field->logical_minimum ||
1374 value > field->logical_maximum)) {
1375 dbg_hid("Ignoring out-of-range value %x\n", value);
1376 return;
1377 }
1378 value = clamp(value,
1379 field->logical_minimum,
1380 field->logical_maximum);
6da70669
JK		 1381 }
1382
6ce901eb
DH		 1383 /*
1384 * Ignore reports for absolute data if the data didn't change. This is
1385 * not only an optimization but also fixes 'dead' key reports. Some
1386 * RollOver implementations for localized keys (like BACKSLASH/PIPE; HID
1387 * 0x31 and 0x32) report multiple keys, even though a localized keyboard
1388 * can only have one of them physically available. The 'dead' keys
1389 * report constant 0. As all map to the same keycode, they'd confuse
1390 * the input layer. If we filter the 'dead' keys on the HID level, we
1391 * skip the keycode translation and only forward real events.
1392 */
1393 if (!(field->flags & (HID_MAIN_ITEM_RELATIVE |
1394 HID_MAIN_ITEM_BUFFERED_BYTE)) &&
8e7b3410 1395 (field->flags & HID_MAIN_ITEM_VARIABLE) &&
6ce901eb
DH		 1396 usage->usage_index < field->maxusage &&
1397 value == field->value[usage->usage_index])
1398 return;
1399
c01d50d1 1400 /* report the usage code as scancode if the key status has changed */
323ddaa8
JB		 1401 if (usage->type == EV_KEY &&
1402 (!test_bit(usage->code, input->key)) == value)
c01d50d1 1403 input_event(input, EV_MSC, MSC_SCAN, usage->hid);
1fe8736d 1404
dde5845a
JK		 1405 input_event(input, usage->type, usage->code, value);
1406
3eb4351a
DT		 1407 if ((field->flags & HID_MAIN_ITEM_RELATIVE) &&
1408 usage->type == EV_KEY && value) {
1409 input_sync(input);
dde5845a 1410 input_event(input, usage->type, usage->code, 0);
3eb4351a 1411 }
dde5845a
JK		 1412}
1413
1414void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
1415{
1416 struct hid_input *hidinput;
1417
24750f3e
HR		 1418 if (hid->quirks & HID_QUIRK_NO_INPUT_SYNC)
1419 return;
1420
dde5845a
JK		 1421 list_for_each_entry(hidinput, &hid->inputs, list)
1422 input_sync(hidinput->input);
1423}
229695e5 1424EXPORT_SYMBOL_GPL(hidinput_report_event);
dde5845a 1425
229695e5 1426int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
dde5845a
JK		 1427{
1428 struct hid_report *report;
1429 int i, j;
1430
1431 list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
1432 for (i = 0; i < report->maxfield; i++) {
1433 *field = report->field[i];
1434 for (j = 0; j < (*field)->maxusage; j++)
1435 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
1436 return j;
1437 }
1438 }
1439 return -1;
1440}
229695e5 1441EXPORT_SYMBOL_GPL(hidinput_find_field);
dde5845a 1442
4371ea82
DK		 1443struct hid_field *hidinput_get_led_field(struct hid_device *hid)
1444{
1445 struct hid_report *report;
1446 struct hid_field *field;
1447 int i, j;
1448
1449 list_for_each_entry(report,
1450 &hid->report_enum[HID_OUTPUT_REPORT].report_list,
1451 list) {
1452 for (i = 0; i < report->maxfield; i++) {
1453 field = report->field[i];
1454 for (j = 0; j < field->maxusage; j++)
1455 if (field->usage[j].type == EV_LED)
1456 return field;
1457 }
1458 }
1459 return NULL;
1460}
1461EXPORT_SYMBOL_GPL(hidinput_get_led_field);
1462
1463unsigned int hidinput_count_leds(struct hid_device *hid)
1464{
1465 struct hid_report *report;
1466 struct hid_field *field;
1467 int i, j;
1468 unsigned int count = 0;
1469
1470 list_for_each_entry(report,
1471 &hid->report_enum[HID_OUTPUT_REPORT].report_list,
1472 list) {
1473 for (i = 0; i < report->maxfield; i++) {
1474 field = report->field[i];
1475 for (j = 0; j < field->maxusage; j++)
1476 if (field->usage[j].type == EV_LED &&
1477 field->value[j])
1478 count += 1;
1479 }
1480 }
1481 return count;
1482}
1483EXPORT_SYMBOL_GPL(hidinput_count_leds);
1484
50c9d75b
DH		 1485static void hidinput_led_worker(struct work_struct *work)
1486{
1487 struct hid_device *hid = container_of(work, struct hid_device,
1488 led_work);
1489 struct hid_field *field;
1490 struct hid_report *report;
3064a03b
AM		 1491 int ret;
1492 u32 len;
50c9d75b
DH		 1493 __u8 *buf;
1494
1495 field = hidinput_get_led_field(hid);
1496 if (!field)
1497 return;
1498
1499 /*
1500 * field->report is accessed unlocked regarding HID core. So there might
1501 * be another incoming SET-LED request from user-space, which changes
1502 * the LED state while we assemble our outgoing buffer. However, this
1503 * doesn't matter as hid_output_report() correctly converts it into a
1504 * boolean value no matter what information is currently set on the LED
1505 * field (even garbage). So the remote device will always get a valid
1506 * request.
1507 * And in case we send a wrong value, a next led worker is spawned
1508 * for every SET-LED request so the following worker will send the
1509 * correct value, guaranteed!
1510 */
1511
1512 report = field->report;
1513
1514 /* use custom SET_REPORT request if possible (asynchronous) */
1515 if (hid->ll_driver->request)
1516 return hid->ll_driver->request(hid, report, HID_REQ_SET_REPORT);
1517
1518 /* fall back to generic raw-output-report */
dabb05c6 1519 len = hid_report_len(report);
9d27f432 1520 buf = hid_alloc_report_buf(report, GFP_KERNEL);
50c9d75b
DH		 1521 if (!buf)
1522 return;
1523
1524 hid_output_report(report, buf);
1525 /* synchronous output report */
2ebaebcf
BT		 1526 ret = hid_hw_output_report(hid, buf, len);
1527 if (ret == -ENOSYS)
1528 hid_hw_raw_request(hid, report->id, buf, len, HID_OUTPUT_REPORT,
1529 HID_REQ_SET_REPORT);
50c9d75b
DH		 1530 kfree(buf);
1531}
1532
1533static int hidinput_input_event(struct input_dev *dev, unsigned int type,
1534 unsigned int code, int value)
1535{
1536 struct hid_device *hid = input_get_drvdata(dev);
1537 struct hid_field *field;
1538 int offset;
1539
1540 if (type == EV_FF)
1541 return input_ff_event(dev, type, code, value);
1542
1543 if (type != EV_LED)
1544 return -1;
1545
1546 if ((offset = hidinput_find_field(hid, type, code, &field)) == -1) {
1547 hid_warn(dev, "event field not found\n");
1548 return -1;
1549 }
1550
1551 hid_set_field(field, offset, value);
1552
1553 schedule_work(&hid->led_work);
1554 return 0;
1555}
1556
7c379146
JK		 1557static int hidinput_open(struct input_dev *dev)
1558{
e0712985
DT		 1559 struct hid_device *hid = input_get_drvdata(dev);
1560
5bea7660 1561 return hid_hw_open(hid);
7c379146
JK		 1562}
1563
1564static void hidinput_close(struct input_dev *dev)
1565{
e0712985
DT		 1566 struct hid_device *hid = input_get_drvdata(dev);
1567
5bea7660 1568 hid_hw_close(hid);
7c379146
JK		 1569}
1570
d43c17ea
BT		 1571static bool __hidinput_change_resolution_multipliers(struct hid_device *hid,
1572 struct hid_report *report, bool use_logical_max)
2dc702c9 1573{
2dc702c9 1574 struct hid_usage *usage;
d43c17ea 1575 bool update_needed = false;
1ad273d6 1576 bool get_report_completed = false;
2dc702c9
PH		 1577 int i, j;
1578
d43c17ea
BT		 1579 if (report->maxfield == 0)
1580 return false;
2dc702c9 1581
d43c17ea
BT		 1582 for (i = 0; i < report->maxfield; i++) {
1583 __s32 value = use_logical_max ?
1584 report->field[i]->logical_maximum :
1585 report->field[i]->logical_minimum;
1586
1587 /* There is no good reason for a Resolution
1588 * Multiplier to have a count other than 1.
1589 * Ignore that case.
2dc702c9 1590 */
d43c17ea
BT		 1591 if (report->field[i]->report_count != 1)
1592 continue;
2dc702c9 1593
d43c17ea
BT		 1594 for (j = 0; j < report->field[i]->maxusage; j++) {
1595 usage = &report->field[i]->usage[j];
2dc702c9 1596
d43c17ea 1597 if (usage->hid != HID_GD_RESOLUTION_MULTIPLIER)
2dc702c9
PH		 1598 continue;
1599
1ad273d6
PH		 1600 /*
1601 * If we have more than one feature within this
1602 * report we need to fill in the bits from the
1603 * others before we can overwrite the ones for the
1604 * Resolution Multiplier.
1605 *
1606 * But if we're not allowed to read from the device,
1607 * we just bail. Such a device should not exist
1608 * anyway.
1609 */
1610 if (!get_report_completed && report->maxfield > 1) {
1611 if (hid->quirks & HID_QUIRK_NO_INIT_REPORTS)
1612 return update_needed;
1613
1614 hid_hw_request(hid, report, HID_REQ_GET_REPORT);
1615 hid_hw_wait(hid);
1616 get_report_completed = true;
1617 }
1618
39b3c3a5 1619 report->field[i]->value[j] = value;
d43c17ea
BT		 1620 update_needed = true;
1621 }
1622 }
1623
1624 return update_needed;
1625}
2dc702c9 1626
d43c17ea
BT		 1627static void hidinput_change_resolution_multipliers(struct hid_device *hid)
1628{
1629 struct hid_report_enum *rep_enum;
1630 struct hid_report *rep;
1631 int ret;
2dc702c9 1632
d43c17ea
BT		 1633 rep_enum = &hid->report_enum[HID_FEATURE_REPORT];
1634 list_for_each_entry(rep, &rep_enum->report_list, list) {
1635 bool update_needed = __hidinput_change_resolution_multipliers(hid,
1636 rep, true);
1637
1638 if (update_needed) {
1639 ret = __hid_request(hid, rep, HID_REQ_SET_REPORT);
1640 if (ret) {
1641 __hidinput_change_resolution_multipliers(hid,
1642 rep, false);
1643 return;
2dc702c9
PH		 1644 }
1645 }
2dc702c9
PH		 1646 }
1647
1648 /* refresh our structs */
1649 hid_setup_resolution_multiplier(hid);
1650}
1651
f635bd11
HR		 1652static void report_features(struct hid_device *hid)
1653{
1654 struct hid_driver *drv = hid->driver;
1655 struct hid_report_enum *rep_enum;
1656 struct hid_report *rep;
581c4484 1657 struct hid_usage *usage;
f635bd11
HR		 1658 int i, j;
1659
f635bd11
HR		 1660 rep_enum = &hid->report_enum[HID_FEATURE_REPORT];
1661 list_for_each_entry(rep, &rep_enum->report_list, list)
cc6b54aa
BT		 1662 for (i = 0; i < rep->maxfield; i++) {
1663 /* Ignore if report count is out of bounds. */
1664 if (rep->field[i]->report_count < 1)
1665 continue;
1666
c5a92aa3 1667 for (j = 0; j < rep->field[i]->maxusage; j++) {
581c4484
DT		 1668 usage = &rep->field[i]->usage[j];
1669
c5a92aa3 1670 /* Verify if Battery Strength feature is available */
581c4484
DT		 1671 if (usage->hid == HID_DC_BATTERYSTRENGTH)
1672 hidinput_setup_battery(hid, HID_FEATURE_REPORT,
1673 rep->field[i]);
c5a92aa3
DN		 1674
1675 if (drv->feature_mapping)
581c4484 1676 drv->feature_mapping(hid, rep->field[i], usage);
c5a92aa3 1677 }
cc6b54aa 1678 }
f635bd11
HR		 1679}
1680
c554bb04
BT		 1681static struct hid_input *hidinput_allocate(struct hid_device *hid,
1682 unsigned int application)
ae751fa8
BT		 1683{
1684 struct hid_input *hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
1685 struct input_dev *input_dev = input_allocate_device();
c554bb04 1686 const char *suffix = NULL;
d7065620 1687 size_t suffix_len, name_len;
c554bb04
BT		 1688
1689 if (!hidinput || !input_dev)
1690 goto fail;
1691
1692 if ((hid->quirks & HID_QUIRK_INPUT_PER_APP) &&
1693 hid->maxapplication > 1) {
1694 switch (application) {
1695 case HID_GD_KEYBOARD:
1696 suffix = "Keyboard";
1697 break;
1698 case HID_GD_KEYPAD:
1699 suffix = "Keypad";
1700 break;
1701 case HID_GD_MOUSE:
1702 suffix = "Mouse";
1703 break;
1704 case HID_DG_STYLUS:
1705 suffix = "Pen";
1706 break;
1707 case HID_DG_TOUCHSCREEN:
1708 suffix = "Touchscreen";
1709 break;
1710 case HID_DG_TOUCHPAD:
1711 suffix = "Touchpad";
1712 break;
1713 case HID_GD_SYSTEM_CONTROL:
1714 suffix = "System Control";
1715 break;
1716 case HID_CP_CONSUMER_CONTROL:
1717 suffix = "Consumer Control";
1718 break;
1719 case HID_GD_WIRELESS_RADIO_CTLS:
1720 suffix = "Wireless Radio Control";
1721 break;
ba6b055e
BT		 1722 case HID_GD_SYSTEM_MULTIAXIS:
1723 suffix = "System Multi Axis";
1724 break;
c554bb04
BT		 1725 default:
1726 break;
1727 }
1728 }
1729
1730 if (suffix) {
d7065620
BT		 1731 name_len = strlen(hid->name);
1732 suffix_len = strlen(suffix);
1733 if ((name_len < suffix_len) ||
1734 strcmp(hid->name + name_len - suffix_len, suffix)) {
1735 hidinput->name = kasprintf(GFP_KERNEL, "%s %s",
1736 hid->name, suffix);
1737 if (!hidinput->name)
1738 goto fail;
1739 }
ae751fa8
BT		 1740 }
1741
1742 input_set_drvdata(input_dev, hid);
3c86726c 1743 input_dev->event = hidinput_input_event;
ae751fa8
BT		 1744 input_dev->open = hidinput_open;
1745 input_dev->close = hidinput_close;
1746 input_dev->setkeycode = hidinput_setkeycode;
1747 input_dev->getkeycode = hidinput_getkeycode;
1748
c554bb04 1749 input_dev->name = hidinput->name ? hidinput->name : hid->name;
ae751fa8
BT		 1750 input_dev->phys = hid->phys;
1751 input_dev->uniq = hid->uniq;
1752 input_dev->id.bustype = hid->bus;
1753 input_dev->id.vendor = hid->vendor;
1754 input_dev->id.product = hid->product;
1755 input_dev->id.version = hid->version;
bbe31754 1756 input_dev->dev.parent = &hid->dev;
e1b63c01 1757
ae751fa8 1758 hidinput->input = input_dev;
0d6c3011 1759 hidinput->application = application;
ae751fa8
BT		 1760 list_add_tail(&hidinput->list, &hid->inputs);
1761
e1b63c01
BT		 1762 INIT_LIST_HEAD(&hidinput->reports);
1763
ae751fa8 1764 return hidinput;
c554bb04
BT		 1765
1766fail:
1767 kfree(hidinput);
1768 input_free_device(input_dev);
1769 hid_err(hid, "Out of memory during hid input probe\n");
1770 return NULL;
ae751fa8
BT		 1771}
1772
4f22decf
BT		 1773static bool hidinput_has_been_populated(struct hid_input *hidinput)
1774{
1775 int i;
1776 unsigned long r = 0;
1777
1778 for (i = 0; i < BITS_TO_LONGS(EV_CNT); i++)
1779 r |= hidinput->input->evbit[i];
1780
1781 for (i = 0; i < BITS_TO_LONGS(KEY_CNT); i++)
1782 r |= hidinput->input->keybit[i];
1783
1784 for (i = 0; i < BITS_TO_LONGS(REL_CNT); i++)
1785 r |= hidinput->input->relbit[i];
1786
1787 for (i = 0; i < BITS_TO_LONGS(ABS_CNT); i++)
1788 r |= hidinput->input->absbit[i];
1789
1790 for (i = 0; i < BITS_TO_LONGS(MSC_CNT); i++)
1791 r |= hidinput->input->mscbit[i];
1792
1793 for (i = 0; i < BITS_TO_LONGS(LED_CNT); i++)
1794 r |= hidinput->input->ledbit[i];
1795
1796 for (i = 0; i < BITS_TO_LONGS(SND_CNT); i++)
1797 r |= hidinput->input->sndbit[i];
1798
1799 for (i = 0; i < BITS_TO_LONGS(FF_CNT); i++)
1800 r |= hidinput->input->ffbit[i];
1801
1802 for (i = 0; i < BITS_TO_LONGS(SW_CNT); i++)
1803 r |= hidinput->input->swbit[i];
1804
1805 return !!r;
1806}
1807
1808static void hidinput_cleanup_hidinput(struct hid_device *hid,
1809 struct hid_input *hidinput)
1810{
1811 struct hid_report *report;
1812 int i, k;
1813
1814 list_del(&hidinput->list);
1815 input_free_device(hidinput->input);
c554bb04 1816 kfree(hidinput->name);
4f22decf
BT		 1817
1818 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
1819 if (k == HID_OUTPUT_REPORT &&
1820 hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
1821 continue;
1822
1823 list_for_each_entry(report, &hid->report_enum[k].report_list,
1824 list) {
1825
1826 for (i = 0; i < report->maxfield; i++)
1827 if (report->field[i]->hidinput == hidinput)
1828 report->field[i]->hidinput = NULL;
1829 }
1830 }
1831
1832 kfree(hidinput);
1833}
1834
72d19459
BT		 1835static struct hid_input *hidinput_match(struct hid_report *report)
1836{
1837 struct hid_device *hid = report->device;
1838 struct hid_input *hidinput;
1839
1840 list_for_each_entry(hidinput, &hid->inputs, list) {
1841 if (hidinput->report &&
1842 hidinput->report->id == report->id)
1843 return hidinput;
1844 }
1845
1846 return NULL;
1847}
1848
f07b3c1d
BT		 1849static struct hid_input *hidinput_match_application(struct hid_report *report)
1850{
1851 struct hid_device *hid = report->device;
1852 struct hid_input *hidinput;
1853
1854 list_for_each_entry(hidinput, &hid->inputs, list) {
0d6c3011 1855 if (hidinput->application == report->application)
f07b3c1d
BT		 1856 return hidinput;
1857 }
1858
1859 return NULL;
1860}
1861
72d19459
BT		 1862static inline void hidinput_configure_usages(struct hid_input *hidinput,
1863 struct hid_report *report)
1864{
1865 int i, j;
1866
1867 for (i = 0; i < report->maxfield; i++)
1868 for (j = 0; j < report->field[i]->maxusage; j++)
1869 hidinput_configure_usage(hidinput, report->field[i],
1870 report->field[i]->usage + j);
1871}
1872
dde5845a
JK		 1873/*
1874 * Register the input device; print a message.
1875 * Configure the input layer interface
1876 * Read all reports and initialize the absolute field values.
1877 */
1878
93c10132 1879int hidinput_connect(struct hid_device *hid, unsigned int force)
dde5845a 1880{
9ebf3d76 1881 struct hid_driver *drv = hid->driver;
dde5845a 1882 struct hid_report *report;
72d19459 1883 struct hid_input *next, *hidinput = NULL;
c554bb04 1884 unsigned int application;
72d19459 1885 int i, k;
dde5845a
JK		 1886
1887 INIT_LIST_HEAD(&hid->inputs);
50c9d75b 1888 INIT_WORK(&hid->led_work, hidinput_led_worker);
dde5845a 1889
190d7f02
BT		 1890 hid->status &= ~HID_STAT_DUP_DETECTED;
1891
93c10132
JS		 1892 if (!force) {
1893 for (i = 0; i < hid->maxcollection; i++) {
1894 struct hid_collection *col = &hid->collection[i];
1895 if (col->type == HID_COLLECTION_APPLICATION ||
1896 col->type == HID_COLLECTION_PHYSICAL)
1897 if (IS_INPUT_APPLICATION(col->usage))
1898 break;
1899 }
dde5845a 1900
93c10132
JS		 1901 if (i == hid->maxcollection)
1902 return -1;
1903 }
dde5845a 1904
f635bd11
HR		 1905 report_features(hid);
1906
1907 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
0d2689c0
BT		 1908 if (k == HID_OUTPUT_REPORT &&
1909 hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
1910 continue;
5556feae 1911
dde5845a
JK		 1912 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
1913
1914 if (!report->maxfield)
1915 continue;
1916
c554bb04
BT		 1917 application = report->application;
1918
72d19459
BT		 1919 /*
1920 * Find the previous hidinput report attached
1921 * to this report id.
1922 */
1923 if (hid->quirks & HID_QUIRK_MULTI_INPUT)
1924 hidinput = hidinput_match(report);
f07b3c1d
BT		 1925 else if (hid->maxapplication > 1 &&
1926 (hid->quirks & HID_QUIRK_INPUT_PER_APP))
1927 hidinput = hidinput_match_application(report);
72d19459 1928
dde5845a 1929 if (!hidinput) {
c554bb04 1930 hidinput = hidinput_allocate(hid, application);
ae751fa8 1931 if (!hidinput)
368d290b 1932 goto out_unwind;
dde5845a
JK		 1933 }
1934
72d19459 1935 hidinput_configure_usages(hidinput, report);
4f22decf 1936
72d19459 1937 if (hid->quirks & HID_QUIRK_MULTI_INPUT)
dde5845a 1938 hidinput->report = report;
e1b63c01
BT		 1939
1940 list_add_tail(&report->hidinput_list,
1941 &hidinput->reports);
dde5845a 1942 }
0d2689c0 1943 }
dde5845a 1944
2dc702c9
PH		 1945 hidinput_change_resolution_multipliers(hid);
1946
72d19459 1947 list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
39335d1c
BT		 1948 if (drv->input_configured &&
1949 drv->input_configured(hid, hidinput))
1950 goto out_unwind;
1951
1952 if (!hidinput_has_been_populated(hidinput)) {
72d19459
BT		 1953 /* no need to register an input device not populated */
1954 hidinput_cleanup_hidinput(hid, hidinput);
1955 continue;
1956 }
1957
72d19459
BT		 1958 if (input_register_device(hidinput->input))
1959 goto out_unwind;
1960 hidinput->registered = true;
4f22decf
BT		 1961 }
1962
1963 if (list_empty(&hid->inputs)) {
1964 hid_err(hid, "No inputs registered, leaving\n");
1965 goto out_unwind;
1966 }
1967
190d7f02
BT		 1968 if (hid->status & HID_STAT_DUP_DETECTED)
1969 hid_dbg(hid,
1970 "Some usages could not be mapped, please use HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE if this is legitimate.\n");
1971
dde5845a 1972 return 0;
368d290b 1973
368d290b
DH		 1974out_unwind:
1975 /* unwind the ones we already registered */
1976 hidinput_disconnect(hid);
1977
1978 return -1;
dde5845a 1979}
229695e5 1980EXPORT_SYMBOL_GPL(hidinput_connect);
dde5845a
JK		 1981
1982void hidinput_disconnect(struct hid_device *hid)
1983{
1984 struct hid_input *hidinput, *next;
1985
4f5ca836
JF		 1986 hidinput_cleanup_battery(hid);
1987
dde5845a
JK		 1988 list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
1989 list_del(&hidinput->list);
72d19459
BT		 1990 if (hidinput->registered)
1991 input_unregister_device(hidinput->input);
1992 else
1993 input_free_device(hidinput->input);
e38c0ac5 1994 kfree(hidinput->name);
dde5845a
JK		 1995 kfree(hidinput);
1996 }
50c9d75b
DH		 1997
1998 /* led_work is spawned by input_dev callbacks, but doesn't access the
1999 * parent input_dev at all. Once all input devices are removed, we
2000 * know that led_work will never get restarted, so we can cancel it
2001 * synchronously and are safe. */
2002 cancel_work_sync(&hid->led_work);
dde5845a 2003}
229695e5 2004EXPORT_SYMBOL_GPL(hidinput_disconnect);
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