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28#include <linux/module.h>
29#include <linux/slab.h>
30#include <linux/kernel.h>
31
32#include <linux/hid.h>
33#include <linux/hid-debug.h>
34
35#include "hid-ids.h"
36
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,
49 122,123, 90, 91, 85,unk,unk,unk,unk,unk,unk,unk,111,unk,unk,unk,
50 unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
51 unk,unk,unk,unk,unk,unk,179,180,unk,unk,unk,unk,unk,unk,unk,unk,
52 unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
53 unk,unk,unk,unk,unk,unk,unk,unk,111,unk,unk,unk,unk,unk,unk,unk,
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
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))
67
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))
72
73static bool match_scancode(struct hid_usage *usage,
74 unsigned int cur_idx, unsigned int scancode)
75{
76 return (usage->hid & (HID_USAGE_PAGE | HID_USAGE)) == scancode;
77}
78
79static bool match_keycode(struct hid_usage *usage,
80 unsigned int cur_idx, unsigned int keycode)
81{
82
83
84
85 return (usage->type == EV_KEY && usage->code == keycode);
86}
87
88static bool match_index(struct hid_usage *usage,
89 unsigned int cur_idx, unsigned int idx)
90{
91 return cur_idx == idx;
92}
93
94typedef bool (*hid_usage_cmp_t)(struct hid_usage *usage,
95 unsigned int cur_idx, unsigned int val);
96
97static struct hid_usage *hidinput_find_key(struct hid_device *hid,
98 hid_usage_cmp_t match,
99 unsigned int value,
100 unsigned int *usage_idx)
101{
102 unsigned int i, j, k, cur_idx = 0;
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++) {
109 for (j = 0; j < report->field[i]->maxusage; j++) {
110 usage = report->field[i]->usage + j;
111 if (usage->type == EV_KEY || usage->type == 0) {
112 if (match(usage, cur_idx, value)) {
113 if (usage_idx)
114 *usage_idx = cur_idx;
115 return usage;
116 }
117 cur_idx++;
118 }
119 }
120 }
121 }
122 }
123 return NULL;
124}
125
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
143static int hidinput_getkeycode(struct input_dev *dev,
144 struct input_keymap_entry *ke)
145{
146 struct hid_device *hid = input_get_drvdata(dev);
147 struct hid_usage *usage;
148 unsigned int scancode, index;
149
150 usage = hidinput_locate_usage(hid, ke, &index);
151 if (usage) {
152 ke->keycode = usage->type == EV_KEY ?
153 usage->code : KEY_RESERVED;
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));
158 return 0;
159 }
160
161 return -EINVAL;
162}
163
164static int hidinput_setkeycode(struct input_dev *dev,
165 const struct input_keymap_entry *ke,
166 unsigned int *old_keycode)
167{
168 struct hid_device *hid = input_get_drvdata(dev);
169 struct hid_usage *usage;
170
171 usage = hidinput_locate_usage(hid, ke, NULL);
172 if (usage) {
173 *old_keycode = usage->type == EV_KEY ?
174 usage->code : KEY_RESERVED;
175 usage->code = ke->keycode;
176
177 clear_bit(*old_keycode, dev->keybit);
178 set_bit(usage->code, dev->keybit);
179 dbg_hid("Assigned keycode %d to HID usage code %x\n",
180 usage->code, usage->hid);
181
182
183
184
185
186 if (hidinput_find_key(hid, match_keycode, *old_keycode, NULL))
187 set_bit(*old_keycode, dev->keybit);
188
189 return 0;
190 }
191
192 return -EINVAL;
193}
194
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202
203
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207
208
209
210
211__s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code)
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
221 if (logical_extents <= 0 || physical_extents <= 0)
222 return 0;
223
224
225
226
227
228 switch (code) {
229 case ABS_X:
230 case ABS_Y:
231 case ABS_Z:
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:
238 if (field->unit == 0x11) {
239
240 unit_exponent += 1;
241 } else if (field->unit == 0x13) {
242
243 prev = physical_extents;
244 physical_extents *= 254;
245 if (physical_extents < prev)
246 return 0;
247 unit_exponent -= 1;
248 } else {
249 return 0;
250 }
251 break;
252
253 case ABS_RX:
254 case ABS_RY:
255 case ABS_RZ:
256 case ABS_WHEEL:
257 case ABS_TILT_X:
258 case ABS_TILT_Y:
259 if (field->unit == 0x14) {
260
261 prev = logical_extents;
262 logical_extents *= 573;
263 if (logical_extents < prev)
264 return 0;
265 unit_exponent += 1;
266 } else if (field->unit != 0x12) {
267 return 0;
268 }
269 break;
270
271 default:
272 return 0;
273 }
274
275
276 for (; unit_exponent < 0; unit_exponent++) {
277 prev = logical_extents;
278 logical_extents *= 10;
279 if (logical_extents < prev)
280 return 0;
281 }
282
283 for (; unit_exponent > 0; unit_exponent--) {
284 prev = physical_extents;
285 physical_extents *= 10;
286 if (physical_extents < prev)
287 return 0;
288 }
289
290
291 return DIV_ROUND_CLOSEST(logical_extents, physical_extents);
292}
293EXPORT_SYMBOL_GPL(hidinput_calc_abs_res);
294
295#ifdef CONFIG_HID_BATTERY_STRENGTH
296static enum power_supply_property hidinput_battery_props[] = {
297 POWER_SUPPLY_PROP_PRESENT,
298 POWER_SUPPLY_PROP_ONLINE,
299 POWER_SUPPLY_PROP_CAPACITY,
300 POWER_SUPPLY_PROP_MODEL_NAME,
301 POWER_SUPPLY_PROP_STATUS,
302 POWER_SUPPLY_PROP_SCOPE,
303};
304
305#define HID_BATTERY_QUIRK_PERCENT (1 << 0)
306#define HID_BATTERY_QUIRK_FEATURE (1 << 1)
307#define HID_BATTERY_QUIRK_IGNORE (1 << 2)
308
309static const struct hid_device_id hid_battery_quirks[] = {
310 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
311 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO),
312 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
313 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
314 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI),
315 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
316 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
317 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI),
318 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
319 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
320 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO),
321 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
322 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
323 USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI),
324 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
325 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM,
326 USB_DEVICE_ID_ELECOM_BM084),
327 HID_BATTERY_QUIRK_IGNORE },
328 {}
329};
330
331static unsigned find_battery_quirk(struct hid_device *hdev)
332{
333 unsigned quirks = 0;
334 const struct hid_device_id *match;
335
336 match = hid_match_id(hdev, hid_battery_quirks);
337 if (match != NULL)
338 quirks = match->driver_data;
339
340 return quirks;
341}
342
343static int hidinput_scale_battery_capacity(struct hid_device *dev,
344 int value)
345{
346 if (dev->battery_min < dev->battery_max &&
347 value >= dev->battery_min && value <= dev->battery_max)
348 value = ((value - dev->battery_min) * 100) /
349 (dev->battery_max - dev->battery_min);
350
351 return value;
352}
353
354static int hidinput_query_battery_capacity(struct hid_device *dev)
355{
356 u8 *buf;
357 int ret;
358
359 buf = kmalloc(2, GFP_KERNEL);
360 if (!buf)
361 return -ENOMEM;
362
363 ret = hid_hw_raw_request(dev, dev->battery_report_id, buf, 2,
364 dev->battery_report_type, HID_REQ_GET_REPORT);
365 if (ret != 2) {
366 kfree(buf);
367 return -ENODATA;
368 }
369
370 ret = hidinput_scale_battery_capacity(dev, buf[1]);
371 kfree(buf);
372 return ret;
373}
374
375static int hidinput_get_battery_property(struct power_supply *psy,
376 enum power_supply_property prop,
377 union power_supply_propval *val)
378{
379 struct hid_device *dev = power_supply_get_drvdata(psy);
380 int value;
381 int ret = 0;
382
383 switch (prop) {
384 case POWER_SUPPLY_PROP_PRESENT:
385 case POWER_SUPPLY_PROP_ONLINE:
386 val->intval = 1;
387 break;
388
389 case POWER_SUPPLY_PROP_CAPACITY:
390 if (dev->battery_report_type == HID_FEATURE_REPORT) {
391 value = hidinput_query_battery_capacity(dev);
392 if (value < 0)
393 return value;
394 } else {
395 value = dev->battery_capacity;
396 }
397
398 val->intval = value;
399 break;
400
401 case POWER_SUPPLY_PROP_MODEL_NAME:
402 val->strval = dev->name;
403 break;
404
405 case POWER_SUPPLY_PROP_STATUS:
406 if (!dev->battery_reported &&
407 dev->battery_report_type == HID_FEATURE_REPORT) {
408 value = hidinput_query_battery_capacity(dev);
409 if (value < 0)
410 return value;
411
412 dev->battery_capacity = value;
413 dev->battery_reported = true;
414 }
415
416 if (!dev->battery_reported)
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;
422 break;
423
424 case POWER_SUPPLY_PROP_SCOPE:
425 val->intval = POWER_SUPPLY_SCOPE_DEVICE;
426 break;
427
428 default:
429 ret = -EINVAL;
430 break;
431 }
432
433 return ret;
434}
435
436static int hidinput_setup_battery(struct hid_device *dev, unsigned report_type, struct hid_field *field)
437{
438 struct power_supply_desc *psy_desc;
439 struct power_supply_config psy_cfg = { .drv_data = dev, };
440 unsigned quirks;
441 s32 min, max;
442 int error;
443
444 if (dev->battery)
445 return 0;
446
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)
453 return 0;
454
455 psy_desc = kzalloc(sizeof(*psy_desc), GFP_KERNEL);
456 if (!psy_desc)
457 return -ENOMEM;
458
459 psy_desc->name = kasprintf(GFP_KERNEL, "hid-%s-battery",
460 strlen(dev->uniq) ?
461 dev->uniq : dev_name(&dev->dev));
462 if (!psy_desc->name) {
463 error = -ENOMEM;
464 goto err_free_mem;
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;
472
473 min = field->logical_minimum;
474 max = field->logical_maximum;
475
476 if (quirks & HID_BATTERY_QUIRK_PERCENT) {
477 min = 0;
478 max = 100;
479 }
480
481 if (quirks & HID_BATTERY_QUIRK_FEATURE)
482 report_type = HID_FEATURE_REPORT;
483
484 dev->battery_min = min;
485 dev->battery_max = max;
486 dev->battery_report_type = report_type;
487 dev->battery_report_id = field->report->id;
488
489 dev->battery = power_supply_register(&dev->dev, psy_desc, &psy_cfg);
490 if (IS_ERR(dev->battery)) {
491 error = PTR_ERR(dev->battery);
492 hid_warn(dev, "can't register power supply: %d\n", error);
493 goto err_free_name;
494 }
495
496 power_supply_powers(dev->battery, &dev->dev);
497 return 0;
498
499err_free_name:
500 kfree(psy_desc->name);
501err_free_mem:
502 kfree(psy_desc);
503 dev->battery = NULL;
504 return error;
505}
506
507static void hidinput_cleanup_battery(struct hid_device *dev)
508{
509 const struct power_supply_desc *psy_desc;
510
511 if (!dev->battery)
512 return;
513
514 psy_desc = dev->battery->desc;
515 power_supply_unregister(dev->battery);
516 kfree(psy_desc->name);
517 kfree(psy_desc);
518 dev->battery = NULL;
519}
520
521static void hidinput_update_battery(struct hid_device *dev, int value)
522{
523 int capacity;
524
525 if (!dev->battery)
526 return;
527
528 if (value == 0 || value < dev->battery_min || value > dev->battery_max)
529 return;
530
531 capacity = hidinput_scale_battery_capacity(dev, value);
532
533 if (!dev->battery_reported || capacity != dev->battery_capacity) {
534 dev->battery_capacity = capacity;
535 dev->battery_reported = true;
536 power_supply_changed(dev->battery);
537 }
538}
539#else
540static int hidinput_setup_battery(struct hid_device *dev, unsigned report_type,
541 struct hid_field *field)
542{
543 return 0;
544}
545
546static void hidinput_cleanup_battery(struct hid_device *dev)
547{
548}
549
550static void hidinput_update_battery(struct hid_device *dev, int value)
551{
552}
553#endif
554
555static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
556 struct hid_usage *usage)
557{
558 struct input_dev *input = hidinput->input;
559 struct hid_device *device = input_get_drvdata(input);
560 int max = 0, code;
561 unsigned long *bit = NULL;
562
563 field->hidinput = hidinput;
564
565 if (field->flags & HID_MAIN_ITEM_CONSTANT)
566 goto ignore;
567
568
569 if (field->report_count < 1)
570 goto ignore;
571
572
573 if (field->report_type == HID_OUTPUT_REPORT &&
574 (usage->hid & HID_USAGE_PAGE) != HID_UP_LED) {
575 goto ignore;
576 }
577
578 if (device->driver->input_mapping) {
579 int ret = device->driver->input_mapping(device, hidinput, field,
580 usage, &bit, &max);
581 if (ret > 0)
582 goto mapped;
583 if (ret < 0)
584 goto ignore;
585 }
586
587 switch (usage->hid & HID_USAGE_PAGE) {
588 case HID_UP_UNDEFINED:
589 goto ignore;
590
591 case HID_UP_KEYBOARD:
592 set_bit(EV_REP, input->evbit);
593
594 if ((usage->hid & HID_USAGE) < 256) {
595 if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
596 map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
597 } else
598 map_key(KEY_UNKNOWN);
599
600 break;
601
602 case HID_UP_BUTTON:
603 code = ((usage->hid - 1) & HID_USAGE);
604
605 switch (field->application) {
606 case HID_GD_MOUSE:
607 case HID_GD_POINTER: code += BTN_MOUSE; break;
608 case HID_GD_JOYSTICK:
609 if (code <= 0xf)
610 code += BTN_JOYSTICK;
611 else
612 code += BTN_TRIGGER_HAPPY - 0x10;
613 break;
614 case HID_GD_GAMEPAD:
615 if (code <= 0xf)
616 code += BTN_GAMEPAD;
617 else
618 code += BTN_TRIGGER_HAPPY - 0x10;
619 break;
620 default:
621 switch (field->physical) {
622 case HID_GD_MOUSE:
623 case HID_GD_POINTER: code += BTN_MOUSE; break;
624 case HID_GD_JOYSTICK: code += BTN_JOYSTICK; break;
625 case HID_GD_GAMEPAD: code += BTN_GAMEPAD; break;
626 default: code += BTN_MISC;
627 }
628 }
629
630 map_key(code);
631 break;
632
633 case HID_UP_SIMULATION:
634 switch (usage->hid & 0xffff) {
635 case 0xba: map_abs(ABS_RUDDER); break;
636 case 0xbb: map_abs(ABS_THROTTLE); break;
637 case 0xc4: map_abs(ABS_GAS); break;
638 case 0xc5: map_abs(ABS_BRAKE); break;
639 case 0xc8: map_abs(ABS_WHEEL); break;
640 default: goto ignore;
641 }
642 break;
643
644 case HID_UP_GENDESK:
645 if ((usage->hid & 0xf0) == 0x80) {
646 switch (usage->hid & 0xf) {
647 case 0x1: map_key_clear(KEY_POWER); break;
648 case 0x2: map_key_clear(KEY_SLEEP); break;
649 case 0x3: map_key_clear(KEY_WAKEUP); break;
650 case 0x4: map_key_clear(KEY_CONTEXT_MENU); break;
651 case 0x5: map_key_clear(KEY_MENU); break;
652 case 0x6: map_key_clear(KEY_PROG1); break;
653 case 0x7: map_key_clear(KEY_HELP); break;
654 case 0x8: map_key_clear(KEY_EXIT); break;
655 case 0x9: map_key_clear(KEY_SELECT); break;
656 case 0xa: map_key_clear(KEY_RIGHT); break;
657 case 0xb: map_key_clear(KEY_LEFT); break;
658 case 0xc: map_key_clear(KEY_UP); break;
659 case 0xd: map_key_clear(KEY_DOWN); break;
660 case 0xe: map_key_clear(KEY_POWER2); break;
661 case 0xf: map_key_clear(KEY_RESTART); break;
662 default: goto unknown;
663 }
664 break;
665 }
666
667
668
669
670
671
672
673 if (field->application == HID_GD_SYSTEM_CONTROL)
674 goto ignore;
675
676 if ((usage->hid & 0xf0) == 0x90) {
677 switch (usage->hid) {
678 case HID_GD_UP: usage->hat_dir = 1; break;
679 case HID_GD_DOWN: usage->hat_dir = 5; break;
680 case HID_GD_RIGHT: usage->hat_dir = 3; break;
681 case HID_GD_LEFT: usage->hat_dir = 7; break;
682 default: goto unknown;
683 }
684 if (field->dpad) {
685 map_abs(field->dpad);
686 goto ignore;
687 }
688 map_abs(ABS_HAT0X);
689 break;
690 }
691
692 switch (usage->hid) {
693
694 case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
695 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
696 if (field->flags & HID_MAIN_ITEM_RELATIVE)
697 map_rel(usage->hid & 0xf);
698 else
699 map_abs_clear(usage->hid & 0xf);
700 break;
701
702 case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL:
703 if (field->flags & HID_MAIN_ITEM_RELATIVE)
704 map_rel(usage->hid & 0xf);
705 else
706 map_abs(usage->hid & 0xf);
707 break;
708
709 case HID_GD_HATSWITCH:
710 usage->hat_min = field->logical_minimum;
711 usage->hat_max = field->logical_maximum;
712 map_abs(ABS_HAT0X);
713 break;
714
715 case HID_GD_START: map_key_clear(BTN_START); break;
716 case HID_GD_SELECT: map_key_clear(BTN_SELECT); break;
717
718 case HID_GD_RFKILL_BTN:
719
720 if (field->application == HID_GD_WIRELESS_RADIO_CTLS) {
721 map_key_clear(KEY_RFKILL);
722
723 field->flags |= HID_MAIN_ITEM_RELATIVE;
724 break;
725 }
726
727 default: goto unknown;
728 }
729
730 break;
731
732 case HID_UP_LED:
733 switch (usage->hid & 0xffff) {
734 case 0x01: map_led (LED_NUML); break;
735 case 0x02: map_led (LED_CAPSL); break;
736 case 0x03: map_led (LED_SCROLLL); break;
737 case 0x04: map_led (LED_COMPOSE); break;
738 case 0x05: map_led (LED_KANA); break;
739 case 0x27: map_led (LED_SLEEP); break;
740 case 0x4c: map_led (LED_SUSPEND); break;
741 case 0x09: map_led (LED_MUTE); break;
742 case 0x4b: map_led (LED_MISC); break;
743 case 0x19: map_led (LED_MAIL); break;
744 case 0x4d: map_led (LED_CHARGING); break;
745
746 default: goto ignore;
747 }
748 break;
749
750 case HID_UP_DIGITIZER:
751 switch (usage->hid & 0xff) {
752 case 0x00:
753 goto ignore;
754
755 case 0x30:
756 if (!test_bit(BTN_TOUCH, input->keybit)) {
757 device->quirks |= HID_QUIRK_NOTOUCH;
758 set_bit(EV_KEY, input->evbit);
759 set_bit(BTN_TOUCH, input->keybit);
760 }
761 map_abs_clear(ABS_PRESSURE);
762 break;
763
764 case 0x32:
765 switch (field->physical & 0xff) {
766 case 0x21: map_key(BTN_TOOL_MOUSE); break;
767 case 0x22: map_key(BTN_TOOL_FINGER); break;
768 default: map_key(BTN_TOOL_PEN); break;
769 }
770 break;
771
772 case 0x3b:
773 hidinput_setup_battery(device, HID_INPUT_REPORT, field);
774 usage->type = EV_PWR;
775 goto ignore;
776
777 case 0x3c:
778 map_key_clear(BTN_TOOL_RUBBER);
779 break;
780
781 case 0x3d:
782 map_abs_clear(ABS_TILT_X);
783 break;
784
785 case 0x3e:
786 map_abs_clear(ABS_TILT_Y);
787 break;
788
789 case 0x33:
790 case 0x42:
791 case 0x43:
792 device->quirks &= ~HID_QUIRK_NOTOUCH;
793 map_key_clear(BTN_TOUCH);
794 break;
795
796 case 0x44:
797 map_key_clear(BTN_STYLUS);
798 break;
799
800 case 0x46:
801 case 0x5a:
802 map_key_clear(BTN_STYLUS2);
803 break;
804
805 case 0x5b:
806 usage->type = EV_MSC;
807 usage->code = MSC_SERIAL;
808 bit = input->mscbit;
809 max = MSC_MAX;
810 break;
811
812 default: goto unknown;
813 }
814 break;
815
816 case HID_UP_TELEPHONY:
817 switch (usage->hid & HID_USAGE) {
818 case 0x2f: map_key_clear(KEY_MICMUTE); break;
819 case 0xb0: map_key_clear(KEY_NUMERIC_0); break;
820 case 0xb1: map_key_clear(KEY_NUMERIC_1); break;
821 case 0xb2: map_key_clear(KEY_NUMERIC_2); break;
822 case 0xb3: map_key_clear(KEY_NUMERIC_3); break;
823 case 0xb4: map_key_clear(KEY_NUMERIC_4); break;
824 case 0xb5: map_key_clear(KEY_NUMERIC_5); break;
825 case 0xb6: map_key_clear(KEY_NUMERIC_6); break;
826 case 0xb7: map_key_clear(KEY_NUMERIC_7); break;
827 case 0xb8: map_key_clear(KEY_NUMERIC_8); break;
828 case 0xb9: map_key_clear(KEY_NUMERIC_9); break;
829 case 0xba: map_key_clear(KEY_NUMERIC_STAR); break;
830 case 0xbb: map_key_clear(KEY_NUMERIC_POUND); break;
831 case 0xbc: map_key_clear(KEY_NUMERIC_A); break;
832 case 0xbd: map_key_clear(KEY_NUMERIC_B); break;
833 case 0xbe: map_key_clear(KEY_NUMERIC_C); break;
834 case 0xbf: map_key_clear(KEY_NUMERIC_D); break;
835 default: goto ignore;
836 }
837 break;
838
839 case HID_UP_CONSUMER:
840 switch (usage->hid & HID_USAGE) {
841 case 0x000: goto ignore;
842 case 0x030: map_key_clear(KEY_POWER); break;
843 case 0x031: map_key_clear(KEY_RESTART); break;
844 case 0x032: map_key_clear(KEY_SLEEP); break;
845 case 0x034: map_key_clear(KEY_SLEEP); break;
846 case 0x035: map_key_clear(KEY_KBDILLUMTOGGLE); break;
847 case 0x036: map_key_clear(BTN_MISC); break;
848
849 case 0x040: map_key_clear(KEY_MENU); break;
850 case 0x041: map_key_clear(KEY_SELECT); break;
851 case 0x042: map_key_clear(KEY_UP); break;
852 case 0x043: map_key_clear(KEY_DOWN); break;
853 case 0x044: map_key_clear(KEY_LEFT); break;
854 case 0x045: map_key_clear(KEY_RIGHT); break;
855 case 0x046: map_key_clear(KEY_ESC); break;
856 case 0x047: map_key_clear(KEY_KPPLUS); break;
857 case 0x048: map_key_clear(KEY_KPMINUS); break;
858
859 case 0x060: map_key_clear(KEY_INFO); break;
860 case 0x061: map_key_clear(KEY_SUBTITLE); break;
861 case 0x063: map_key_clear(KEY_VCR); break;
862 case 0x065: map_key_clear(KEY_CAMERA); break;
863 case 0x069: map_key_clear(KEY_RED); break;
864 case 0x06a: map_key_clear(KEY_GREEN); break;
865 case 0x06b: map_key_clear(KEY_BLUE); break;
866 case 0x06c: map_key_clear(KEY_YELLOW); break;
867 case 0x06d: map_key_clear(KEY_ZOOM); break;
868
869 case 0x06f: map_key_clear(KEY_BRIGHTNESSUP); break;
870 case 0x070: map_key_clear(KEY_BRIGHTNESSDOWN); break;
871 case 0x072: map_key_clear(KEY_BRIGHTNESS_TOGGLE); break;
872 case 0x073: map_key_clear(KEY_BRIGHTNESS_MIN); break;
873 case 0x074: map_key_clear(KEY_BRIGHTNESS_MAX); break;
874 case 0x075: map_key_clear(KEY_BRIGHTNESS_AUTO); break;
875
876 case 0x082: map_key_clear(KEY_VIDEO_NEXT); break;
877 case 0x083: map_key_clear(KEY_LAST); break;
878 case 0x084: map_key_clear(KEY_ENTER); break;
879 case 0x088: map_key_clear(KEY_PC); break;
880 case 0x089: map_key_clear(KEY_TV); break;
881 case 0x08a: map_key_clear(KEY_WWW); break;
882 case 0x08b: map_key_clear(KEY_DVD); break;
883 case 0x08c: map_key_clear(KEY_PHONE); break;
884 case 0x08d: map_key_clear(KEY_PROGRAM); break;
885 case 0x08e: map_key_clear(KEY_VIDEOPHONE); break;
886 case 0x08f: map_key_clear(KEY_GAMES); break;
887 case 0x090: map_key_clear(KEY_MEMO); break;
888 case 0x091: map_key_clear(KEY_CD); break;
889 case 0x092: map_key_clear(KEY_VCR); break;
890 case 0x093: map_key_clear(KEY_TUNER); break;
891 case 0x094: map_key_clear(KEY_EXIT); break;
892 case 0x095: map_key_clear(KEY_HELP); break;
893 case 0x096: map_key_clear(KEY_TAPE); break;
894 case 0x097: map_key_clear(KEY_TV2); break;
895 case 0x098: map_key_clear(KEY_SAT); break;
896 case 0x09a: map_key_clear(KEY_PVR); break;
897
898 case 0x09c: map_key_clear(KEY_CHANNELUP); break;
899 case 0x09d: map_key_clear(KEY_CHANNELDOWN); break;
900 case 0x0a0: map_key_clear(KEY_VCR2); break;
901
902 case 0x0b0: map_key_clear(KEY_PLAY); break;
903 case 0x0b1: map_key_clear(KEY_PAUSE); break;
904 case 0x0b2: map_key_clear(KEY_RECORD); break;
905 case 0x0b3: map_key_clear(KEY_FASTFORWARD); break;
906 case 0x0b4: map_key_clear(KEY_REWIND); break;
907 case 0x0b5: map_key_clear(KEY_NEXTSONG); break;
908 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG); break;
909 case 0x0b7: map_key_clear(KEY_STOPCD); break;
910 case 0x0b8: map_key_clear(KEY_EJECTCD); break;
911 case 0x0bc: map_key_clear(KEY_MEDIA_REPEAT); break;
912 case 0x0b9: map_key_clear(KEY_SHUFFLE); break;
913 case 0x0bf: map_key_clear(KEY_SLOW); break;
914
915 case 0x0cd: map_key_clear(KEY_PLAYPAUSE); break;
916 case 0x0cf: map_key_clear(KEY_VOICECOMMAND); break;
917 case 0x0e0: map_abs_clear(ABS_VOLUME); break;
918 case 0x0e2: map_key_clear(KEY_MUTE); break;
919 case 0x0e5: map_key_clear(KEY_BASSBOOST); break;
920 case 0x0e9: map_key_clear(KEY_VOLUMEUP); break;
921 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN); break;
922 case 0x0f5: map_key_clear(KEY_SLOW); break;
923
924 case 0x181: map_key_clear(KEY_BUTTONCONFIG); break;
925 case 0x182: map_key_clear(KEY_BOOKMARKS); break;
926 case 0x183: map_key_clear(KEY_CONFIG); break;
927 case 0x184: map_key_clear(KEY_WORDPROCESSOR); break;
928 case 0x185: map_key_clear(KEY_EDITOR); break;
929 case 0x186: map_key_clear(KEY_SPREADSHEET); break;
930 case 0x187: map_key_clear(KEY_GRAPHICSEDITOR); break;
931 case 0x188: map_key_clear(KEY_PRESENTATION); break;
932 case 0x189: map_key_clear(KEY_DATABASE); break;
933 case 0x18a: map_key_clear(KEY_MAIL); break;
934 case 0x18b: map_key_clear(KEY_NEWS); break;
935 case 0x18c: map_key_clear(KEY_VOICEMAIL); break;
936 case 0x18d: map_key_clear(KEY_ADDRESSBOOK); break;
937 case 0x18e: map_key_clear(KEY_CALENDAR); break;
938 case 0x18f: map_key_clear(KEY_TASKMANAGER); break;
939 case 0x190: map_key_clear(KEY_JOURNAL); break;
940 case 0x191: map_key_clear(KEY_FINANCE); break;
941 case 0x192: map_key_clear(KEY_CALC); break;
942 case 0x193: map_key_clear(KEY_PLAYER); break;
943 case 0x194: map_key_clear(KEY_FILE); break;
944 case 0x196: map_key_clear(KEY_WWW); break;
945 case 0x199: map_key_clear(KEY_CHAT); break;
946 case 0x19c: map_key_clear(KEY_LOGOFF); break;
947 case 0x19e: map_key_clear(KEY_COFFEE); break;
948 case 0x19f: map_key_clear(KEY_CONTROLPANEL); break;
949 case 0x1a2: map_key_clear(KEY_APPSELECT); break;
950 case 0x1a3: map_key_clear(KEY_NEXT); break;
951 case 0x1a4: map_key_clear(KEY_PREVIOUS); break;
952 case 0x1a6: map_key_clear(KEY_HELP); break;
953 case 0x1a7: map_key_clear(KEY_DOCUMENTS); break;
954 case 0x1ab: map_key_clear(KEY_SPELLCHECK); break;
955 case 0x1ae: map_key_clear(KEY_KEYBOARD); break;
956 case 0x1b1: map_key_clear(KEY_SCREENSAVER); break;
957 case 0x1b4: map_key_clear(KEY_FILE); break;
958 case 0x1b6: map_key_clear(KEY_IMAGES); break;
959 case 0x1b7: map_key_clear(KEY_AUDIO); break;
960 case 0x1b8: map_key_clear(KEY_VIDEO); break;
961 case 0x1bc: map_key_clear(KEY_MESSENGER); break;
962 case 0x1bd: map_key_clear(KEY_INFO); break;
963 case 0x201: map_key_clear(KEY_NEW); break;
964 case 0x202: map_key_clear(KEY_OPEN); break;
965 case 0x203: map_key_clear(KEY_CLOSE); break;
966 case 0x204: map_key_clear(KEY_EXIT); break;
967 case 0x207: map_key_clear(KEY_SAVE); break;
968 case 0x208: map_key_clear(KEY_PRINT); break;
969 case 0x209: map_key_clear(KEY_PROPS); break;
970 case 0x21a: map_key_clear(KEY_UNDO); break;
971 case 0x21b: map_key_clear(KEY_COPY); break;
972 case 0x21c: map_key_clear(KEY_CUT); break;
973 case 0x21d: map_key_clear(KEY_PASTE); break;
974 case 0x21f: map_key_clear(KEY_FIND); break;
975 case 0x221: map_key_clear(KEY_SEARCH); break;
976 case 0x222: map_key_clear(KEY_GOTO); break;
977 case 0x223: map_key_clear(KEY_HOMEPAGE); break;
978 case 0x224: map_key_clear(KEY_BACK); break;
979 case 0x225: map_key_clear(KEY_FORWARD); break;
980 case 0x226: map_key_clear(KEY_STOP); break;
981 case 0x227: map_key_clear(KEY_REFRESH); break;
982 case 0x22a: map_key_clear(KEY_BOOKMARKS); break;
983 case 0x22d: map_key_clear(KEY_ZOOMIN); break;
984 case 0x22e: map_key_clear(KEY_ZOOMOUT); break;
985 case 0x22f: map_key_clear(KEY_ZOOMRESET); break;
986 case 0x233: map_key_clear(KEY_SCROLLUP); break;
987 case 0x234: map_key_clear(KEY_SCROLLDOWN); break;
988 case 0x238: map_rel(REL_HWHEEL); break;
989 case 0x23d: map_key_clear(KEY_EDIT); break;
990 case 0x25f: map_key_clear(KEY_CANCEL); break;
991 case 0x269: map_key_clear(KEY_INSERT); break;
992 case 0x26a: map_key_clear(KEY_DELETE); break;
993 case 0x279: map_key_clear(KEY_REDO); break;
994
995 case 0x289: map_key_clear(KEY_REPLY); break;
996 case 0x28b: map_key_clear(KEY_FORWARDMAIL); break;
997 case 0x28c: map_key_clear(KEY_SEND); break;
998
999 case 0x2c7: map_key_clear(KEY_KBDINPUTASSIST_PREV); break;
1000 case 0x2c8: map_key_clear(KEY_KBDINPUTASSIST_NEXT); break;
1001 case 0x2c9: map_key_clear(KEY_KBDINPUTASSIST_PREVGROUP); break;
1002 case 0x2ca: map_key_clear(KEY_KBDINPUTASSIST_NEXTGROUP); break;
1003 case 0x2cb: map_key_clear(KEY_KBDINPUTASSIST_ACCEPT); break;
1004 case 0x2cc: map_key_clear(KEY_KBDINPUTASSIST_CANCEL); break;
1005
1006 default: map_key_clear(KEY_UNKNOWN);
1007 }
1008 break;
1009
1010 case HID_UP_GENDEVCTRLS:
1011 switch (usage->hid) {
1012 case HID_DC_BATTERYSTRENGTH:
1013 hidinput_setup_battery(device, HID_INPUT_REPORT, field);
1014 usage->type = EV_PWR;
1015 goto ignore;
1016 }
1017 goto unknown;
1018
1019 case HID_UP_HPVENDOR:
1020 set_bit(EV_REP, input->evbit);
1021 switch (usage->hid & HID_USAGE) {
1022 case 0x021: map_key_clear(KEY_PRINT); break;
1023 case 0x070: map_key_clear(KEY_HP); break;
1024 case 0x071: map_key_clear(KEY_CAMERA); break;
1025 case 0x072: map_key_clear(KEY_SOUND); break;
1026 case 0x073: map_key_clear(KEY_QUESTION); break;
1027 case 0x080: map_key_clear(KEY_EMAIL); break;
1028 case 0x081: map_key_clear(KEY_CHAT); break;
1029 case 0x082: map_key_clear(KEY_SEARCH); break;
1030 case 0x083: map_key_clear(KEY_CONNECT); break;
1031 case 0x084: map_key_clear(KEY_FINANCE); break;
1032 case 0x085: map_key_clear(KEY_SPORT); break;
1033 case 0x086: map_key_clear(KEY_SHOP); break;
1034 default: goto ignore;
1035 }
1036 break;
1037
1038 case HID_UP_HPVENDOR2:
1039 set_bit(EV_REP, input->evbit);
1040 switch (usage->hid & HID_USAGE) {
1041 case 0x001: map_key_clear(KEY_MICMUTE); break;
1042 case 0x003: map_key_clear(KEY_BRIGHTNESSDOWN); break;
1043 case 0x004: map_key_clear(KEY_BRIGHTNESSUP); break;
1044 default: goto ignore;
1045 }
1046 break;
1047
1048 case HID_UP_MSVENDOR:
1049 goto ignore;
1050
1051 case HID_UP_CUSTOM:
1052 set_bit(EV_REP, input->evbit);
1053 goto ignore;
1054
1055 case HID_UP_LOGIVENDOR:
1056
1057 case HID_UP_LOGIVENDOR2:
1058
1059 case HID_UP_LOGIVENDOR3:
1060 goto ignore;
1061
1062 case HID_UP_PID:
1063 switch (usage->hid & HID_USAGE) {
1064 case 0xa4: map_key_clear(BTN_DEAD); break;
1065 default: goto ignore;
1066 }
1067 break;
1068
1069 default:
1070 unknown:
1071 if (field->report_size == 1) {
1072 if (field->report->type == HID_OUTPUT_REPORT) {
1073 map_led(LED_MISC);
1074 break;
1075 }
1076 map_key(BTN_MISC);
1077 break;
1078 }
1079 if (field->flags & HID_MAIN_ITEM_RELATIVE) {
1080 map_rel(REL_MISC);
1081 break;
1082 }
1083 map_abs(ABS_MISC);
1084 break;
1085 }
1086
1087mapped:
1088 if (device->driver->input_mapped && device->driver->input_mapped(device,
1089 hidinput, field, usage, &bit, &max) < 0)
1090 goto ignore;
1091
1092 set_bit(usage->type, input->evbit);
1093
1094 while (usage->code <= max && test_and_set_bit(usage->code, bit))
1095 usage->code = find_next_zero_bit(bit, max + 1, usage->code);
1096
1097 if (usage->code > max)
1098 goto ignore;
1099
1100 if (usage->type == EV_ABS) {
1101
1102 int a = field->logical_minimum;
1103 int b = field->logical_maximum;
1104
1105 if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
1106 a = field->logical_minimum = 0;
1107 b = field->logical_maximum = 255;
1108 }
1109
1110 if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
1111 input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
1112 else input_set_abs_params(input, usage->code, a, b, 0, 0);
1113
1114 input_abs_set_res(input, usage->code,
1115 hidinput_calc_abs_res(field, usage->code));
1116
1117
1118 if (usage->code == ABS_MT_POSITION_X && input->hint_events_per_packet == 0)
1119 input_set_events_per_packet(input, 60);
1120 }
1121
1122 if (usage->type == EV_ABS &&
1123 (usage->hat_min < usage->hat_max || usage->hat_dir)) {
1124 int i;
1125 for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
1126 input_set_abs_params(input, i, -1, 1, 0, 0);
1127 set_bit(i, input->absbit);
1128 }
1129 if (usage->hat_dir && !field->dpad)
1130 field->dpad = usage->code;
1131 }
1132
1133
1134
1135
1136
1137 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
1138 (usage->code == ABS_VOLUME)) {
1139 set_bit(KEY_VOLUMEUP, input->keybit);
1140 set_bit(KEY_VOLUMEDOWN, input->keybit);
1141 }
1142
1143 if (usage->type == EV_KEY) {
1144 set_bit(EV_MSC, input->evbit);
1145 set_bit(MSC_SCAN, input->mscbit);
1146 }
1147
1148ignore:
1149 return;
1150
1151}
1152
1153void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
1154{
1155 struct input_dev *input;
1156 unsigned *quirks = &hid->quirks;
1157
1158 if (!usage->type)
1159 return;
1160
1161 if (usage->type == EV_PWR) {
1162 hidinput_update_battery(hid, value);
1163 return;
1164 }
1165
1166 if (!field->hidinput)
1167 return;
1168
1169 input = field->hidinput->input;
1170
1171 if (usage->hat_min < usage->hat_max || usage->hat_dir) {
1172 int hat_dir = usage->hat_dir;
1173 if (!hat_dir)
1174 hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
1175 if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
1176 input_event(input, usage->type, usage->code , hid_hat_to_axis[hat_dir].x);
1177 input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
1178 return;
1179 }
1180
1181 if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) {
1182 *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
1183 return;
1184 }
1185
1186 if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) {
1187 if (value) {
1188 input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
1189 return;
1190 }
1191 input_event(input, usage->type, usage->code, 0);
1192 input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
1193 return;
1194 }
1195
1196 if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) {
1197 int a = field->logical_minimum;
1198 int b = field->logical_maximum;
1199 input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3));
1200 }
1201
1202 if (usage->hid == (HID_UP_PID | 0x83UL)) {
1203 dbg_hid("Maximum Effects - %d\n",value);
1204 return;
1205 }
1206
1207 if (usage->hid == (HID_UP_PID | 0x7fUL)) {
1208 dbg_hid("PID Pool Report\n");
1209 return;
1210 }
1211
1212 if ((usage->type == EV_KEY) && (usage->code == 0))
1213 return;
1214
1215 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
1216 (usage->code == ABS_VOLUME)) {
1217 int count = abs(value);
1218 int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN;
1219 int i;
1220
1221 for (i = 0; i < count; i++) {
1222 input_event(input, EV_KEY, direction, 1);
1223 input_sync(input);
1224 input_event(input, EV_KEY, direction, 0);
1225 input_sync(input);
1226 }
1227 return;
1228 }
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241 if ((field->flags & HID_MAIN_ITEM_VARIABLE) &&
1242 (field->logical_minimum < field->logical_maximum)) {
1243 if (field->flags & HID_MAIN_ITEM_NULL_STATE &&
1244 (value < field->logical_minimum ||
1245 value > field->logical_maximum)) {
1246 dbg_hid("Ignoring out-of-range value %x\n", value);
1247 return;
1248 }
1249 value = clamp(value,
1250 field->logical_minimum,
1251 field->logical_maximum);
1252 }
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264 if (!(field->flags & (HID_MAIN_ITEM_RELATIVE |
1265 HID_MAIN_ITEM_BUFFERED_BYTE)) &&
1266 (field->flags & HID_MAIN_ITEM_VARIABLE) &&
1267 usage->usage_index < field->maxusage &&
1268 value == field->value[usage->usage_index])
1269 return;
1270
1271
1272 if (usage->type == EV_KEY &&
1273 (!test_bit(usage->code, input->key)) == value)
1274 input_event(input, EV_MSC, MSC_SCAN, usage->hid);
1275
1276 input_event(input, usage->type, usage->code, value);
1277
1278 if ((field->flags & HID_MAIN_ITEM_RELATIVE) &&
1279 usage->type == EV_KEY && value) {
1280 input_sync(input);
1281 input_event(input, usage->type, usage->code, 0);
1282 }
1283}
1284
1285void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
1286{
1287 struct hid_input *hidinput;
1288
1289 if (hid->quirks & HID_QUIRK_NO_INPUT_SYNC)
1290 return;
1291
1292 list_for_each_entry(hidinput, &hid->inputs, list)
1293 input_sync(hidinput->input);
1294}
1295EXPORT_SYMBOL_GPL(hidinput_report_event);
1296
1297int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
1298{
1299 struct hid_report *report;
1300 int i, j;
1301
1302 list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
1303 for (i = 0; i < report->maxfield; i++) {
1304 *field = report->field[i];
1305 for (j = 0; j < (*field)->maxusage; j++)
1306 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
1307 return j;
1308 }
1309 }
1310 return -1;
1311}
1312EXPORT_SYMBOL_GPL(hidinput_find_field);
1313
1314struct hid_field *hidinput_get_led_field(struct hid_device *hid)
1315{
1316 struct hid_report *report;
1317 struct hid_field *field;
1318 int i, j;
1319
1320 list_for_each_entry(report,
1321 &hid->report_enum[HID_OUTPUT_REPORT].report_list,
1322 list) {
1323 for (i = 0; i < report->maxfield; i++) {
1324 field = report->field[i];
1325 for (j = 0; j < field->maxusage; j++)
1326 if (field->usage[j].type == EV_LED)
1327 return field;
1328 }
1329 }
1330 return NULL;
1331}
1332EXPORT_SYMBOL_GPL(hidinput_get_led_field);
1333
1334unsigned int hidinput_count_leds(struct hid_device *hid)
1335{
1336 struct hid_report *report;
1337 struct hid_field *field;
1338 int i, j;
1339 unsigned int count = 0;
1340
1341 list_for_each_entry(report,
1342 &hid->report_enum[HID_OUTPUT_REPORT].report_list,
1343 list) {
1344 for (i = 0; i < report->maxfield; i++) {
1345 field = report->field[i];
1346 for (j = 0; j < field->maxusage; j++)
1347 if (field->usage[j].type == EV_LED &&
1348 field->value[j])
1349 count += 1;
1350 }
1351 }
1352 return count;
1353}
1354EXPORT_SYMBOL_GPL(hidinput_count_leds);
1355
1356static void hidinput_led_worker(struct work_struct *work)
1357{
1358 struct hid_device *hid = container_of(work, struct hid_device,
1359 led_work);
1360 struct hid_field *field;
1361 struct hid_report *report;
1362 int len, ret;
1363 __u8 *buf;
1364
1365 field = hidinput_get_led_field(hid);
1366 if (!field)
1367 return;
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382 report = field->report;
1383
1384
1385 if (hid->ll_driver->request)
1386 return hid->ll_driver->request(hid, report, HID_REQ_SET_REPORT);
1387
1388
1389 len = hid_report_len(report);
1390 buf = hid_alloc_report_buf(report, GFP_KERNEL);
1391 if (!buf)
1392 return;
1393
1394 hid_output_report(report, buf);
1395
1396 ret = hid_hw_output_report(hid, buf, len);
1397 if (ret == -ENOSYS)
1398 hid_hw_raw_request(hid, report->id, buf, len, HID_OUTPUT_REPORT,
1399 HID_REQ_SET_REPORT);
1400 kfree(buf);
1401}
1402
1403static int hidinput_input_event(struct input_dev *dev, unsigned int type,
1404 unsigned int code, int value)
1405{
1406 struct hid_device *hid = input_get_drvdata(dev);
1407 struct hid_field *field;
1408 int offset;
1409
1410 if (type == EV_FF)
1411 return input_ff_event(dev, type, code, value);
1412
1413 if (type != EV_LED)
1414 return -1;
1415
1416 if ((offset = hidinput_find_field(hid, type, code, &field)) == -1) {
1417 hid_warn(dev, "event field not found\n");
1418 return -1;
1419 }
1420
1421 hid_set_field(field, offset, value);
1422
1423 schedule_work(&hid->led_work);
1424 return 0;
1425}
1426
1427static int hidinput_open(struct input_dev *dev)
1428{
1429 struct hid_device *hid = input_get_drvdata(dev);
1430
1431 return hid_hw_open(hid);
1432}
1433
1434static void hidinput_close(struct input_dev *dev)
1435{
1436 struct hid_device *hid = input_get_drvdata(dev);
1437
1438 hid_hw_close(hid);
1439}
1440
1441static void report_features(struct hid_device *hid)
1442{
1443 struct hid_driver *drv = hid->driver;
1444 struct hid_report_enum *rep_enum;
1445 struct hid_report *rep;
1446 struct hid_usage *usage;
1447 int i, j;
1448
1449 rep_enum = &hid->report_enum[HID_FEATURE_REPORT];
1450 list_for_each_entry(rep, &rep_enum->report_list, list)
1451 for (i = 0; i < rep->maxfield; i++) {
1452
1453 if (rep->field[i]->report_count < 1)
1454 continue;
1455
1456 for (j = 0; j < rep->field[i]->maxusage; j++) {
1457 usage = &rep->field[i]->usage[j];
1458
1459
1460 if (usage->hid == HID_DC_BATTERYSTRENGTH)
1461 hidinput_setup_battery(hid, HID_FEATURE_REPORT,
1462 rep->field[i]);
1463
1464 if (drv->feature_mapping)
1465 drv->feature_mapping(hid, rep->field[i], usage);
1466 }
1467 }
1468}
1469
1470static struct hid_input *hidinput_allocate(struct hid_device *hid)
1471{
1472 struct hid_input *hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
1473 struct input_dev *input_dev = input_allocate_device();
1474 if (!hidinput || !input_dev) {
1475 kfree(hidinput);
1476 input_free_device(input_dev);
1477 hid_err(hid, "Out of memory during hid input probe\n");
1478 return NULL;
1479 }
1480
1481 input_set_drvdata(input_dev, hid);
1482 input_dev->event = hidinput_input_event;
1483 input_dev->open = hidinput_open;
1484 input_dev->close = hidinput_close;
1485 input_dev->setkeycode = hidinput_setkeycode;
1486 input_dev->getkeycode = hidinput_getkeycode;
1487
1488 input_dev->name = hid->name;
1489 input_dev->phys = hid->phys;
1490 input_dev->uniq = hid->uniq;
1491 input_dev->id.bustype = hid->bus;
1492 input_dev->id.vendor = hid->vendor;
1493 input_dev->id.product = hid->product;
1494 input_dev->id.version = hid->version;
1495 input_dev->dev.parent = &hid->dev;
1496 hidinput->input = input_dev;
1497 list_add_tail(&hidinput->list, &hid->inputs);
1498
1499 return hidinput;
1500}
1501
1502static bool hidinput_has_been_populated(struct hid_input *hidinput)
1503{
1504 int i;
1505 unsigned long r = 0;
1506
1507 for (i = 0; i < BITS_TO_LONGS(EV_CNT); i++)
1508 r |= hidinput->input->evbit[i];
1509
1510 for (i = 0; i < BITS_TO_LONGS(KEY_CNT); i++)
1511 r |= hidinput->input->keybit[i];
1512
1513 for (i = 0; i < BITS_TO_LONGS(REL_CNT); i++)
1514 r |= hidinput->input->relbit[i];
1515
1516 for (i = 0; i < BITS_TO_LONGS(ABS_CNT); i++)
1517 r |= hidinput->input->absbit[i];
1518
1519 for (i = 0; i < BITS_TO_LONGS(MSC_CNT); i++)
1520 r |= hidinput->input->mscbit[i];
1521
1522 for (i = 0; i < BITS_TO_LONGS(LED_CNT); i++)
1523 r |= hidinput->input->ledbit[i];
1524
1525 for (i = 0; i < BITS_TO_LONGS(SND_CNT); i++)
1526 r |= hidinput->input->sndbit[i];
1527
1528 for (i = 0; i < BITS_TO_LONGS(FF_CNT); i++)
1529 r |= hidinput->input->ffbit[i];
1530
1531 for (i = 0; i < BITS_TO_LONGS(SW_CNT); i++)
1532 r |= hidinput->input->swbit[i];
1533
1534 return !!r;
1535}
1536
1537static void hidinput_cleanup_hidinput(struct hid_device *hid,
1538 struct hid_input *hidinput)
1539{
1540 struct hid_report *report;
1541 int i, k;
1542
1543 list_del(&hidinput->list);
1544 input_free_device(hidinput->input);
1545
1546 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
1547 if (k == HID_OUTPUT_REPORT &&
1548 hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
1549 continue;
1550
1551 list_for_each_entry(report, &hid->report_enum[k].report_list,
1552 list) {
1553
1554 for (i = 0; i < report->maxfield; i++)
1555 if (report->field[i]->hidinput == hidinput)
1556 report->field[i]->hidinput = NULL;
1557 }
1558 }
1559
1560 kfree(hidinput);
1561}
1562
1563static struct hid_input *hidinput_match(struct hid_report *report)
1564{
1565 struct hid_device *hid = report->device;
1566 struct hid_input *hidinput;
1567
1568 list_for_each_entry(hidinput, &hid->inputs, list) {
1569 if (hidinput->report &&
1570 hidinput->report->id == report->id)
1571 return hidinput;
1572 }
1573
1574 return NULL;
1575}
1576
1577static inline void hidinput_configure_usages(struct hid_input *hidinput,
1578 struct hid_report *report)
1579{
1580 int i, j;
1581
1582 for (i = 0; i < report->maxfield; i++)
1583 for (j = 0; j < report->field[i]->maxusage; j++)
1584 hidinput_configure_usage(hidinput, report->field[i],
1585 report->field[i]->usage + j);
1586}
1587
1588
1589
1590
1591
1592
1593
1594int hidinput_connect(struct hid_device *hid, unsigned int force)
1595{
1596 struct hid_driver *drv = hid->driver;
1597 struct hid_report *report;
1598 struct hid_input *next, *hidinput = NULL;
1599 int i, k;
1600
1601 INIT_LIST_HEAD(&hid->inputs);
1602 INIT_WORK(&hid->led_work, hidinput_led_worker);
1603
1604 if (!force) {
1605 for (i = 0; i < hid->maxcollection; i++) {
1606 struct hid_collection *col = &hid->collection[i];
1607 if (col->type == HID_COLLECTION_APPLICATION ||
1608 col->type == HID_COLLECTION_PHYSICAL)
1609 if (IS_INPUT_APPLICATION(col->usage))
1610 break;
1611 }
1612
1613 if (i == hid->maxcollection)
1614 return -1;
1615 }
1616
1617 report_features(hid);
1618
1619 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
1620 if (k == HID_OUTPUT_REPORT &&
1621 hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
1622 continue;
1623
1624 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
1625
1626 if (!report->maxfield)
1627 continue;
1628
1629
1630
1631
1632
1633 if (hid->quirks & HID_QUIRK_MULTI_INPUT)
1634 hidinput = hidinput_match(report);
1635
1636 if (!hidinput) {
1637 hidinput = hidinput_allocate(hid);
1638 if (!hidinput)
1639 goto out_unwind;
1640 }
1641
1642 hidinput_configure_usages(hidinput, report);
1643
1644 if (hid->quirks & HID_QUIRK_MULTI_INPUT)
1645 hidinput->report = report;
1646 }
1647 }
1648
1649 list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
1650 if ((hid->quirks & HID_QUIRK_NO_EMPTY_INPUT) &&
1651 !hidinput_has_been_populated(hidinput)) {
1652
1653 hidinput_cleanup_hidinput(hid, hidinput);
1654 continue;
1655 }
1656
1657 if (drv->input_configured &&
1658 drv->input_configured(hid, hidinput))
1659 goto out_unwind;
1660 if (input_register_device(hidinput->input))
1661 goto out_unwind;
1662 hidinput->registered = true;
1663 }
1664
1665 if (list_empty(&hid->inputs)) {
1666 hid_err(hid, "No inputs registered, leaving\n");
1667 goto out_unwind;
1668 }
1669
1670 return 0;
1671
1672out_unwind:
1673
1674 hidinput_disconnect(hid);
1675
1676 return -1;
1677}
1678EXPORT_SYMBOL_GPL(hidinput_connect);
1679
1680void hidinput_disconnect(struct hid_device *hid)
1681{
1682 struct hid_input *hidinput, *next;
1683
1684 hidinput_cleanup_battery(hid);
1685
1686 list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
1687 list_del(&hidinput->list);
1688 if (hidinput->registered)
1689 input_unregister_device(hidinput->input);
1690 else
1691 input_free_device(hidinput->input);
1692 kfree(hidinput);
1693 }
1694
1695
1696
1697
1698
1699 cancel_work_sync(&hid->led_work);
1700}
1701EXPORT_SYMBOL_GPL(hidinput_disconnect);
1702
1703
