hid-input.c 37.3 KB
Newer Older
1 2
/*
 *  Copyright (c) 2000-2001 Vojtech Pavlik
J
Jiri Kosina 已提交
3
 *  Copyright (c) 2006-2010 Jiri Kosina
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
 *
 *  HID to Linux Input mapping
 */

/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 * Should you need to contact me, the author, you can do so either by
 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
 */

#include <linux/module.h>
#include <linux/slab.h>
#include <linux/kernel.h>

#include <linux/hid.h>
33
#include <linux/hid-debug.h>
34

35 36
#include "hid-ids.h"

37 38 39 40 41 42 43 44 45 46 47 48
#define unk	KEY_UNKNOWN

static const unsigned char hid_keyboard[256] = {
	  0,  0,  0,  0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
	 50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44,  2,  3,
	  4,  5,  6,  7,  8,  9, 10, 11, 28,  1, 14, 15, 57, 12, 13, 26,
	 27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
	 65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
	105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
	 72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190,
	191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113,
	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 55 56 57 58 59 60 61 62
	 29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
	150,158,159,128,136,177,178,176,142,152,173,140,unk,unk,unk,unk
};

static const struct {
	__s32 x;
	__s32 y;
}  hid_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};

63 64 65 66
#define map_abs(c)	hid_map_usage(hidinput, usage, &bit, &max, EV_ABS, (c))
#define map_rel(c)	hid_map_usage(hidinput, usage, &bit, &max, EV_REL, (c))
#define map_key(c)	hid_map_usage(hidinput, usage, &bit, &max, EV_KEY, (c))
#define map_led(c)	hid_map_usage(hidinput, usage, &bit, &max, EV_LED, (c))
67

68 69 70 71
#define map_abs_clear(c)	hid_map_usage_clear(hidinput, usage, &bit, \
		&max, EV_ABS, (c))
#define map_key_clear(c)	hid_map_usage_clear(hidinput, usage, &bit, \
		&max, EV_KEY, (c))
72

73 74
static bool match_scancode(struct hid_usage *usage,
			   unsigned int cur_idx, unsigned int scancode)
75
{
76
	return (usage->hid & (HID_USAGE_PAGE | HID_USAGE)) == scancode;
77 78
}

79 80
static bool match_keycode(struct hid_usage *usage,
			  unsigned int cur_idx, unsigned int keycode)
81
{
82 83 84 85
	/*
	 * We should exclude unmapped usages when doing lookup by keycode.
	 */
	return (usage->type == EV_KEY && usage->code == keycode);
86
}
87

88 89 90 91
static bool match_index(struct hid_usage *usage,
			unsigned int cur_idx, unsigned int idx)
{
	return cur_idx == idx;
92 93
}

94 95 96
typedef bool (*hid_usage_cmp_t)(struct hid_usage *usage,
				unsigned int cur_idx, unsigned int val);

97
static struct hid_usage *hidinput_find_key(struct hid_device *hid,
98 99 100
					   hid_usage_cmp_t match,
					   unsigned int value,
					   unsigned int *usage_idx)
101
{
102
	unsigned int i, j, k, cur_idx = 0;
103 104 105 106 107 108
	struct hid_report *report;
	struct hid_usage *usage;

	for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
		list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
			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) {
112 113 114 115 116 117 118
						if (match(usage, cur_idx, value)) {
							if (usage_idx)
								*usage_idx = cur_idx;
							return usage;
						}
						cur_idx++;
					}
119 120 121 122 123 124 125
				}
			}
		}
	}
	return NULL;
}

126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142
static struct hid_usage *hidinput_locate_usage(struct hid_device *hid,
					const struct input_keymap_entry *ke,
					unsigned int *index)
{
	struct hid_usage *usage;
	unsigned int scancode;

	if (ke->flags & INPUT_KEYMAP_BY_INDEX)
		usage = hidinput_find_key(hid, match_index, ke->index, index);
	else if (input_scancode_to_scalar(ke, &scancode) == 0)
		usage = hidinput_find_key(hid, match_scancode, scancode, index);
	else
		usage = NULL;

	return usage;
}

143
static 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;
J
Jiri Kosina 已提交
149

150
	usage = hidinput_locate_usage(hid, ke, &index);
151
	if (usage) {
152 153
		ke->keycode = usage->type == EV_KEY ?
				usage->code : KEY_RESERVED;
154 155 156 157
		ke->index = index;
		scancode = usage->hid & (HID_USAGE_PAGE | HID_USAGE);
		ke->len = sizeof(scancode);
		memcpy(ke->scancode, &scancode, sizeof(scancode));
158 159
		return 0;
	}
160

161 162 163
	return -EINVAL;
}

164
static int hidinput_setkeycode(struct input_dev *dev,
165 166
			       const struct input_keymap_entry *ke,
			       unsigned int *old_keycode)
167
{
168
	struct hid_device *hid = input_get_drvdata(dev);
169
	struct hid_usage *usage;
J
Jiri Kosina 已提交
170

171
	usage = hidinput_locate_usage(hid, ke, NULL);
172
	if (usage) {
173 174
		*old_keycode = usage->type == EV_KEY ?
				usage->code : KEY_RESERVED;
175
		usage->code = ke->keycode;
J
Jiri Kosina 已提交
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",
180 181 182 183 184 185 186 187
			usage->code, usage->hid);

		/*
		 * Set the keybit for the old keycode if the old keycode is used
		 * by another key
		 */
		if (hidinput_find_key(hid, match_keycode, *old_keycode, NULL))
			set_bit(*old_keycode, dev->keybit);
J
Jiri Kosina 已提交
188

189 190
		return 0;
	}
J
Jiri Kosina 已提交
191

192 193 194 195
	return -EINVAL;
}


196 197 198 199 200 201 202 203 204 205 206 207
/**
 * hidinput_calc_abs_res - calculate an absolute axis resolution
 * @field: the HID report field to calculate resolution for
 * @code: axis code
 *
 * The formula is:
 *                         (logical_maximum - logical_minimum)
 * resolution = ----------------------------------------------------------
 *              (physical_maximum - physical_minimum) * 10 ^ unit_exponent
 *
 * as seen in the HID specification v1.11 6.2.2.7 Global Items.
 *
208 209
 * Only exponent 1 length units are processed. Centimeters and inches are
 * converted to millimeters. Degrees are converted to radians.
210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227
 */
static __s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code)
{
	__s32 unit_exponent = field->unit_exponent;
	__s32 logical_extents = field->logical_maximum -
					field->logical_minimum;
	__s32 physical_extents = field->physical_maximum -
					field->physical_minimum;
	__s32 prev;

	/* Check if the extents are sane */
	if (logical_extents <= 0 || physical_extents <= 0)
		return 0;

	/*
	 * Verify and convert units.
	 * See HID specification v1.11 6.2.2.7 Global Items for unit decoding
	 */
228 229 230 231
	switch (code) {
	case ABS_X:
	case ABS_Y:
	case ABS_Z:
232
		if (field->unit == 0x11) {		/* If centimeters */
233 234 235 236 237 238 239
			/* Convert to millimeters */
			unit_exponent += 1;
		} else if (field->unit == 0x13) {	/* If inches */
			/* Convert to millimeters */
			prev = physical_extents;
			physical_extents *= 254;
			if (physical_extents < prev)
240
				return 0;
241 242
			unit_exponent -= 1;
		} else {
243 244
			return 0;
		}
245 246 247 248 249 250 251
		break;

	case ABS_RX:
	case ABS_RY:
	case ABS_RZ:
	case ABS_TILT_X:
	case ABS_TILT_Y:
252 253 254 255 256 257 258 259 260 261
		if (field->unit == 0x14) {		/* If degrees */
			/* Convert to radians */
			prev = logical_extents;
			logical_extents *= 573;
			if (logical_extents < prev)
				return 0;
			unit_exponent += 1;
		} else if (field->unit != 0x12) {	/* If not radians */
			return 0;
		}
262 263 264
		break;

	default:
265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286
		return 0;
	}

	/* Apply negative unit exponent */
	for (; unit_exponent < 0; unit_exponent++) {
		prev = logical_extents;
		logical_extents *= 10;
		if (logical_extents < prev)
			return 0;
	}
	/* Apply positive unit exponent */
	for (; unit_exponent > 0; unit_exponent--) {
		prev = physical_extents;
		physical_extents *= 10;
		if (physical_extents < prev)
			return 0;
	}

	/* Calculate resolution */
	return logical_extents / physical_extents;
}

287 288 289 290 291 292
#ifdef CONFIG_HID_BATTERY_STRENGTH
static enum power_supply_property hidinput_battery_props[] = {
	POWER_SUPPLY_PROP_PRESENT,
	POWER_SUPPLY_PROP_ONLINE,
	POWER_SUPPLY_PROP_CAPACITY,
	POWER_SUPPLY_PROP_MODEL_NAME,
293 294
	POWER_SUPPLY_PROP_STATUS,
	POWER_SUPPLY_PROP_SCOPE,
295 296
};

297
#define HID_BATTERY_QUIRK_PERCENT	(1 << 0) /* always reports percent */
298
#define HID_BATTERY_QUIRK_FEATURE	(1 << 1) /* ask for feature report */
299 300

static const struct hid_device_id hid_battery_quirks[] = {
301 302 303
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
			USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO),
	HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
304 305 306
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
			       USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI),
	  HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
307 308 309
	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
		USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI),
	  HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
310 311 312 313 314 315 316 317 318 319 320 321 322 323 324
	{}
};

static unsigned find_battery_quirk(struct hid_device *hdev)
{
	unsigned quirks = 0;
	const struct hid_device_id *match;

	match = hid_match_id(hdev, hid_battery_quirks);
	if (match != NULL)
		quirks = match->driver_data;

	return quirks;
}

325 326 327 328 329 330
static int hidinput_get_battery_property(struct power_supply *psy,
					 enum power_supply_property prop,
					 union power_supply_propval *val)
{
	struct hid_device *dev = container_of(psy, struct hid_device, battery);
	int ret = 0;
331
	__u8 buf[2] = {};
332 333 334 335 336 337 338 339

	switch (prop) {
	case POWER_SUPPLY_PROP_PRESENT:
	case POWER_SUPPLY_PROP_ONLINE:
		val->intval = 1;
		break;

	case POWER_SUPPLY_PROP_CAPACITY:
340 341 342 343 344 345 346
		ret = dev->hid_get_raw_report(dev, dev->battery_report_id,
					      buf, sizeof(buf),
					      dev->battery_report_type);

		if (ret != 2) {
			if (ret >= 0)
				ret = -EINVAL;
347 348 349
			break;
		}

350
		if (dev->battery_min < dev->battery_max &&
351 352 353
		    buf[1] >= dev->battery_min &&
		    buf[1] <= dev->battery_max)
			val->intval = (100 * (buf[1] - dev->battery_min)) /
354 355 356 357 358 359 360
				(dev->battery_max - dev->battery_min);
		break;

	case POWER_SUPPLY_PROP_MODEL_NAME:
		val->strval = dev->name;
		break;

361 362 363 364
	case POWER_SUPPLY_PROP_STATUS:
		val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
		break;

365 366 367 368
	case POWER_SUPPLY_PROP_SCOPE:
		val->intval = POWER_SUPPLY_SCOPE_DEVICE;
		break;

369 370 371 372 373 374 375 376
	default:
		ret = -EINVAL;
		break;
	}

	return ret;
}

377
static bool hidinput_setup_battery(struct hid_device *dev, unsigned report_type, struct hid_field *field)
378 379 380
{
	struct power_supply *battery = &dev->battery;
	int ret;
381
	unsigned quirks;
382 383 384 385
	s32 min, max;

	if (field->usage->hid != HID_DC_BATTERYSTRENGTH)
		return false;	/* no match */
386 387

	if (battery->name != NULL)
388
		goto out;	/* already initialized? */
389 390 391

	battery->name = kasprintf(GFP_KERNEL, "hid-%s-battery", dev->uniq);
	if (battery->name == NULL)
392
		goto out;
393 394 395 396 397 398 399

	battery->type = POWER_SUPPLY_TYPE_BATTERY;
	battery->properties = hidinput_battery_props;
	battery->num_properties = ARRAY_SIZE(hidinput_battery_props);
	battery->use_for_apm = 0;
	battery->get_property = hidinput_get_battery_property;

400 401
	quirks = find_battery_quirk(dev);

402 403 404
	hid_dbg(dev, "device %x:%x:%x %d quirks %d\n",
		dev->bus, dev->vendor, dev->product, dev->version, quirks);

405 406 407
	min = field->logical_minimum;
	max = field->logical_maximum;

408 409 410 411 412
	if (quirks & HID_BATTERY_QUIRK_PERCENT) {
		min = 0;
		max = 100;
	}

413 414 415
	if (quirks & HID_BATTERY_QUIRK_FEATURE)
		report_type = HID_FEATURE_REPORT;

416 417
	dev->battery_min = min;
	dev->battery_max = max;
418
	dev->battery_report_type = report_type;
419
	dev->battery_report_id = field->report->id;
420 421 422 423 424 425 426

	ret = power_supply_register(&dev->dev, battery);
	if (ret != 0) {
		hid_warn(dev, "can't register power supply: %d\n", ret);
		kfree(battery->name);
		battery->name = NULL;
	}
427

428 429
	power_supply_powers(battery, &dev->dev);

430 431
out:
	return true;
432 433 434 435 436 437 438 439 440 441 442 443
}

static void hidinput_cleanup_battery(struct hid_device *dev)
{
	if (!dev->battery.name)
		return;

	power_supply_unregister(&dev->battery);
	kfree(dev->battery.name);
	dev->battery.name = NULL;
}
#else  /* !CONFIG_HID_BATTERY_STRENGTH */
444 445
static bool hidinput_setup_battery(struct hid_device *dev, unsigned report_type,
				   struct hid_field *field)
446
{
447
	return false;
448 449 450 451 452 453 454
}

static void hidinput_cleanup_battery(struct hid_device *dev)
{
}
#endif	/* CONFIG_HID_BATTERY_STRENGTH */

455 456 457 458
static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
				     struct hid_usage *usage)
{
	struct input_dev *input = hidinput->input;
459
	struct hid_device *device = input_get_drvdata(input);
J
Jiri Slaby 已提交
460
	int max = 0, code;
461 462 463 464 465 466 467
	unsigned long *bit = NULL;

	field->hidinput = hidinput;

	if (field->flags & HID_MAIN_ITEM_CONSTANT)
		goto ignore;

468 469 470 471 472 473
	/* only LED usages are supported in output fields */
	if (field->report_type == HID_OUTPUT_REPORT &&
			(usage->hid & HID_USAGE_PAGE) != HID_UP_LED) {
		goto ignore;
	}

J
Jiri Slaby 已提交
474 475 476 477 478 479 480 481 482
	if (device->driver->input_mapping) {
		int ret = device->driver->input_mapping(device, hidinput, field,
				usage, &bit, &max);
		if (ret > 0)
			goto mapped;
		if (ret < 0)
			goto ignore;
	}

483
	switch (usage->hid & HID_USAGE_PAGE) {
J
Jiri Slaby 已提交
484 485
	case HID_UP_UNDEFINED:
		goto ignore;
486

J
Jiri Slaby 已提交
487 488
	case HID_UP_KEYBOARD:
		set_bit(EV_REP, input->evbit);
489

J
Jiri Slaby 已提交
490 491 492 493 494
		if ((usage->hid & HID_USAGE) < 256) {
			if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
			map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
		} else
			map_key(KEY_UNKNOWN);
495

J
Jiri Slaby 已提交
496
		break;
497

J
Jiri Slaby 已提交
498
	case HID_UP_BUTTON:
499
		code = ((usage->hid - 1) & HID_USAGE);
500

J
Jiri Slaby 已提交
501 502
		switch (field->application) {
		case HID_GD_MOUSE:
503
		case HID_GD_POINTER:  code += BTN_MOUSE; break;
504
		case HID_GD_JOYSTICK:
505 506 507
				if (code <= 0xf)
					code += BTN_JOYSTICK;
				else
508 509 510 511 512 513 514
					code += BTN_TRIGGER_HAPPY - 0x10;
				break;
		case HID_GD_GAMEPAD:
				if (code <= 0xf)
					code += BTN_GAMEPAD;
				else
					code += BTN_TRIGGER_HAPPY - 0x10;
515
				break;
J
Jiri Slaby 已提交
516 517 518
		default:
			switch (field->physical) {
			case HID_GD_MOUSE:
519 520 521 522
			case HID_GD_POINTER:  code += BTN_MOUSE; break;
			case HID_GD_JOYSTICK: code += BTN_JOYSTICK; break;
			case HID_GD_GAMEPAD:  code += BTN_GAMEPAD; break;
			default:              code += BTN_MISC;
523
			}
J
Jiri Slaby 已提交
524
		}
525

J
Jiri Slaby 已提交
526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545
		map_key(code);
		break;

	case HID_UP_SIMULATION:
		switch (usage->hid & 0xffff) {
		case 0xba: map_abs(ABS_RUDDER);   break;
		case 0xbb: map_abs(ABS_THROTTLE); break;
		case 0xc4: map_abs(ABS_GAS);      break;
		case 0xc5: map_abs(ABS_BRAKE);    break;
		case 0xc8: map_abs(ABS_WHEEL);    break;
		default:   goto ignore;
		}
		break;

	case HID_UP_GENDESK:
		if ((usage->hid & 0xf0) == 0x80) {	/* SystemControl */
			switch (usage->hid & 0xf) {
			case 0x1: map_key_clear(KEY_POWER);  break;
			case 0x2: map_key_clear(KEY_SLEEP);  break;
			case 0x3: map_key_clear(KEY_WAKEUP); break;
546 547 548 549 550 551 552 553 554 555 556 557
			case 0x4: map_key_clear(KEY_CONTEXT_MENU); break;
			case 0x5: map_key_clear(KEY_MENU); break;
			case 0x6: map_key_clear(KEY_PROG1); break;
			case 0x7: map_key_clear(KEY_HELP); break;
			case 0x8: map_key_clear(KEY_EXIT); break;
			case 0x9: map_key_clear(KEY_SELECT); break;
			case 0xa: map_key_clear(KEY_RIGHT); break;
			case 0xb: map_key_clear(KEY_LEFT); break;
			case 0xc: map_key_clear(KEY_UP); break;
			case 0xd: map_key_clear(KEY_DOWN); break;
			case 0xe: map_key_clear(KEY_POWER2); break;
			case 0xf: map_key_clear(KEY_RESTART); break;
J
Jiri Slaby 已提交
558
			default: goto unknown;
559 560
			}
			break;
J
Jiri Slaby 已提交
561
		}
562

J
Jiri Slaby 已提交
563
		if ((usage->hid & 0xf0) == 0x90) {	/* D-pad */
564
			switch (usage->hid) {
J
Jiri Slaby 已提交
565 566 567 568 569
			case HID_GD_UP:	   usage->hat_dir = 1; break;
			case HID_GD_DOWN:  usage->hat_dir = 5; break;
			case HID_GD_RIGHT: usage->hat_dir = 3; break;
			case HID_GD_LEFT:  usage->hat_dir = 7; break;
			default: goto unknown;
570
			}
J
Jiri Slaby 已提交
571 572 573
			if (field->dpad) {
				map_abs(field->dpad);
				goto ignore;
574
			}
J
Jiri Slaby 已提交
575
			map_abs(ABS_HAT0X);
576
			break;
J
Jiri Slaby 已提交
577
		}
578

J
Jiri Slaby 已提交
579 580 581 582 583 584 585 586 587 588
		switch (usage->hid) {
		/* These usage IDs map directly to the usage codes. */
		case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
		case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
		case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL:
			if (field->flags & HID_MAIN_ITEM_RELATIVE)
				map_rel(usage->hid & 0xf);
			else
				map_abs(usage->hid & 0xf);
			break;
589

J
Jiri Slaby 已提交
590 591 592 593 594
		case HID_GD_HATSWITCH:
			usage->hat_min = field->logical_minimum;
			usage->hat_max = field->logical_maximum;
			map_abs(ABS_HAT0X);
			break;
595

J
Jiri Slaby 已提交
596 597
		case HID_GD_START:	map_key_clear(BTN_START);	break;
		case HID_GD_SELECT:	map_key_clear(BTN_SELECT);	break;
598

J
Jiri Slaby 已提交
599 600
		default: goto unknown;
		}
601

J
Jiri Slaby 已提交
602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623
		break;

	case HID_UP_LED:
		switch (usage->hid & 0xffff) {		      /* HID-Value:                   */
		case 0x01:  map_led (LED_NUML);     break;    /*   "Num Lock"                 */
		case 0x02:  map_led (LED_CAPSL);    break;    /*   "Caps Lock"                */
		case 0x03:  map_led (LED_SCROLLL);  break;    /*   "Scroll Lock"              */
		case 0x04:  map_led (LED_COMPOSE);  break;    /*   "Compose"                  */
		case 0x05:  map_led (LED_KANA);     break;    /*   "Kana"                     */
		case 0x27:  map_led (LED_SLEEP);    break;    /*   "Stand-By"                 */
		case 0x4c:  map_led (LED_SUSPEND);  break;    /*   "System Suspend"           */
		case 0x09:  map_led (LED_MUTE);     break;    /*   "Mute"                     */
		case 0x4b:  map_led (LED_MISC);     break;    /*   "Generic Indicator"        */
		case 0x19:  map_led (LED_MAIL);     break;    /*   "Message Waiting"          */
		case 0x4d:  map_led (LED_CHARGING); break;    /*   "External Power Connected" */

		default: goto ignore;
		}
		break;

	case HID_UP_DIGITIZER:
		switch (usage->hid & 0xff) {
624 625 626
		case 0x00: /* Undefined */
			goto ignore;

J
Jiri Slaby 已提交
627 628 629 630 631
		case 0x30: /* TipPressure */
			if (!test_bit(BTN_TOUCH, input->keybit)) {
				device->quirks |= HID_QUIRK_NOTOUCH;
				set_bit(EV_KEY, input->evbit);
				set_bit(BTN_TOUCH, input->keybit);
632
			}
J
Jiri Slaby 已提交
633
			map_abs_clear(ABS_PRESSURE);
634 635
			break;

J
Jiri Slaby 已提交
636 637 638 639 640
		case 0x32: /* InRange */
			switch (field->physical & 0xff) {
			case 0x21: map_key(BTN_TOOL_MOUSE); break;
			case 0x22: map_key(BTN_TOOL_FINGER); break;
			default: map_key(BTN_TOOL_PEN); break;
641 642 643
			}
			break;

J
Jiri Slaby 已提交
644 645
		case 0x3c: /* Invert */
			map_key_clear(BTN_TOOL_RUBBER);
646 647
			break;

648 649 650 651 652 653 654 655
		case 0x3d: /* X Tilt */
			map_abs_clear(ABS_TILT_X);
			break;

		case 0x3e: /* Y Tilt */
			map_abs_clear(ABS_TILT_Y);
			break;

J
Jiri Slaby 已提交
656 657 658 659 660 661
		case 0x33: /* Touch */
		case 0x42: /* TipSwitch */
		case 0x43: /* TipSwitch2 */
			device->quirks &= ~HID_QUIRK_NOTOUCH;
			map_key_clear(BTN_TOUCH);
			break;
662

J
Jiri Slaby 已提交
663 664 665
		case 0x44: /* BarrelSwitch */
			map_key_clear(BTN_STYLUS);
			break;
666

667 668 669 670
		case 0x46: /* TabletPick */
			map_key_clear(BTN_STYLUS2);
			break;

J
Jiri Slaby 已提交
671 672 673 674
		default:  goto unknown;
		}
		break;

675
	case HID_UP_CONSUMER:	/* USB HUT v1.12, pages 75-84 */
J
Jiri Slaby 已提交
676 677
		switch (usage->hid & HID_USAGE) {
		case 0x000: goto ignore;
678 679 680
		case 0x030: map_key_clear(KEY_POWER);		break;
		case 0x031: map_key_clear(KEY_RESTART);		break;
		case 0x032: map_key_clear(KEY_SLEEP);		break;
J
Jiri Slaby 已提交
681
		case 0x034: map_key_clear(KEY_SLEEP);		break;
682
		case 0x035: map_key_clear(KEY_KBDILLUMTOGGLE);	break;
J
Jiri Slaby 已提交
683 684
		case 0x036: map_key_clear(BTN_MISC);		break;

685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705
		case 0x040: map_key_clear(KEY_MENU);		break; /* Menu */
		case 0x041: map_key_clear(KEY_SELECT);		break; /* Menu Pick */
		case 0x042: map_key_clear(KEY_UP);		break; /* Menu Up */
		case 0x043: map_key_clear(KEY_DOWN);		break; /* Menu Down */
		case 0x044: map_key_clear(KEY_LEFT);		break; /* Menu Left */
		case 0x045: map_key_clear(KEY_RIGHT);		break; /* Menu Right */
		case 0x046: map_key_clear(KEY_ESC);		break; /* Menu Escape */
		case 0x047: map_key_clear(KEY_KPPLUS);		break; /* Menu Value Increase */
		case 0x048: map_key_clear(KEY_KPMINUS);		break; /* Menu Value Decrease */

		case 0x060: map_key_clear(KEY_INFO);		break; /* Data On Screen */
		case 0x061: map_key_clear(KEY_SUBTITLE);	break; /* Closed Caption */
		case 0x063: map_key_clear(KEY_VCR);		break; /* VCR/TV */
		case 0x065: map_key_clear(KEY_CAMERA);		break; /* Snapshot */
		case 0x069: map_key_clear(KEY_RED);		break;
		case 0x06a: map_key_clear(KEY_GREEN);		break;
		case 0x06b: map_key_clear(KEY_BLUE);		break;
		case 0x06c: map_key_clear(KEY_YELLOW);		break;
		case 0x06d: map_key_clear(KEY_ZOOM);		break;

		case 0x082: map_key_clear(KEY_VIDEO_NEXT);	break;
J
Jiri Slaby 已提交
706
		case 0x083: map_key_clear(KEY_LAST);		break;
707
		case 0x084: map_key_clear(KEY_ENTER);		break;
J
Jiri Slaby 已提交
708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740
		case 0x088: map_key_clear(KEY_PC);		break;
		case 0x089: map_key_clear(KEY_TV);		break;
		case 0x08a: map_key_clear(KEY_WWW);		break;
		case 0x08b: map_key_clear(KEY_DVD);		break;
		case 0x08c: map_key_clear(KEY_PHONE);		break;
		case 0x08d: map_key_clear(KEY_PROGRAM);		break;
		case 0x08e: map_key_clear(KEY_VIDEOPHONE);	break;
		case 0x08f: map_key_clear(KEY_GAMES);		break;
		case 0x090: map_key_clear(KEY_MEMO);		break;
		case 0x091: map_key_clear(KEY_CD);		break;
		case 0x092: map_key_clear(KEY_VCR);		break;
		case 0x093: map_key_clear(KEY_TUNER);		break;
		case 0x094: map_key_clear(KEY_EXIT);		break;
		case 0x095: map_key_clear(KEY_HELP);		break;
		case 0x096: map_key_clear(KEY_TAPE);		break;
		case 0x097: map_key_clear(KEY_TV2);		break;
		case 0x098: map_key_clear(KEY_SAT);		break;
		case 0x09a: map_key_clear(KEY_PVR);		break;

		case 0x09c: map_key_clear(KEY_CHANNELUP);	break;
		case 0x09d: map_key_clear(KEY_CHANNELDOWN);	break;
		case 0x0a0: map_key_clear(KEY_VCR2);		break;

		case 0x0b0: map_key_clear(KEY_PLAY);		break;
		case 0x0b1: map_key_clear(KEY_PAUSE);		break;
		case 0x0b2: map_key_clear(KEY_RECORD);		break;
		case 0x0b3: map_key_clear(KEY_FASTFORWARD);	break;
		case 0x0b4: map_key_clear(KEY_REWIND);		break;
		case 0x0b5: map_key_clear(KEY_NEXTSONG);	break;
		case 0x0b6: map_key_clear(KEY_PREVIOUSSONG);	break;
		case 0x0b7: map_key_clear(KEY_STOPCD);		break;
		case 0x0b8: map_key_clear(KEY_EJECTCD);		break;
		case 0x0bc: map_key_clear(KEY_MEDIA_REPEAT);	break;
741 742
		case 0x0b9: map_key_clear(KEY_SHUFFLE);		break;
		case 0x0bf: map_key_clear(KEY_SLOW);		break;
J
Jiri Slaby 已提交
743 744 745 746 747 748 749

		case 0x0cd: map_key_clear(KEY_PLAYPAUSE);	break;
		case 0x0e0: map_abs_clear(ABS_VOLUME);		break;
		case 0x0e2: map_key_clear(KEY_MUTE);		break;
		case 0x0e5: map_key_clear(KEY_BASSBOOST);	break;
		case 0x0e9: map_key_clear(KEY_VOLUMEUP);	break;
		case 0x0ea: map_key_clear(KEY_VOLUMEDOWN);	break;
750
		case 0x0f5: map_key_clear(KEY_SLOW);		break;
J
Jiri Slaby 已提交
751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766

		case 0x182: map_key_clear(KEY_BOOKMARKS);	break;
		case 0x183: map_key_clear(KEY_CONFIG);		break;
		case 0x184: map_key_clear(KEY_WORDPROCESSOR);	break;
		case 0x185: map_key_clear(KEY_EDITOR);		break;
		case 0x186: map_key_clear(KEY_SPREADSHEET);	break;
		case 0x187: map_key_clear(KEY_GRAPHICSEDITOR);	break;
		case 0x188: map_key_clear(KEY_PRESENTATION);	break;
		case 0x189: map_key_clear(KEY_DATABASE);	break;
		case 0x18a: map_key_clear(KEY_MAIL);		break;
		case 0x18b: map_key_clear(KEY_NEWS);		break;
		case 0x18c: map_key_clear(KEY_VOICEMAIL);	break;
		case 0x18d: map_key_clear(KEY_ADDRESSBOOK);	break;
		case 0x18e: map_key_clear(KEY_CALENDAR);	break;
		case 0x191: map_key_clear(KEY_FINANCE);		break;
		case 0x192: map_key_clear(KEY_CALC);		break;
767
		case 0x193: map_key_clear(KEY_PLAYER);		break;
J
Jiri Slaby 已提交
768 769
		case 0x194: map_key_clear(KEY_FILE);		break;
		case 0x196: map_key_clear(KEY_WWW);		break;
770
		case 0x199: map_key_clear(KEY_CHAT);		break;
J
Jiri Slaby 已提交
771 772 773 774 775
		case 0x19c: map_key_clear(KEY_LOGOFF);		break;
		case 0x19e: map_key_clear(KEY_COFFEE);		break;
		case 0x1a6: map_key_clear(KEY_HELP);		break;
		case 0x1a7: map_key_clear(KEY_DOCUMENTS);	break;
		case 0x1ab: map_key_clear(KEY_SPELLCHECK);	break;
776 777 778 779
		case 0x1ae: map_key_clear(KEY_KEYBOARD);	break;
		case 0x1b6: map_key_clear(KEY_IMAGES);		break;
		case 0x1b7: map_key_clear(KEY_AUDIO);		break;
		case 0x1b8: map_key_clear(KEY_VIDEO);		break;
J
Jiri Slaby 已提交
780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807
		case 0x1bc: map_key_clear(KEY_MESSENGER);	break;
		case 0x1bd: map_key_clear(KEY_INFO);		break;
		case 0x201: map_key_clear(KEY_NEW);		break;
		case 0x202: map_key_clear(KEY_OPEN);		break;
		case 0x203: map_key_clear(KEY_CLOSE);		break;
		case 0x204: map_key_clear(KEY_EXIT);		break;
		case 0x207: map_key_clear(KEY_SAVE);		break;
		case 0x208: map_key_clear(KEY_PRINT);		break;
		case 0x209: map_key_clear(KEY_PROPS);		break;
		case 0x21a: map_key_clear(KEY_UNDO);		break;
		case 0x21b: map_key_clear(KEY_COPY);		break;
		case 0x21c: map_key_clear(KEY_CUT);		break;
		case 0x21d: map_key_clear(KEY_PASTE);		break;
		case 0x21f: map_key_clear(KEY_FIND);		break;
		case 0x221: map_key_clear(KEY_SEARCH);		break;
		case 0x222: map_key_clear(KEY_GOTO);		break;
		case 0x223: map_key_clear(KEY_HOMEPAGE);	break;
		case 0x224: map_key_clear(KEY_BACK);		break;
		case 0x225: map_key_clear(KEY_FORWARD);		break;
		case 0x226: map_key_clear(KEY_STOP);		break;
		case 0x227: map_key_clear(KEY_REFRESH);		break;
		case 0x22a: map_key_clear(KEY_BOOKMARKS);	break;
		case 0x22d: map_key_clear(KEY_ZOOMIN);		break;
		case 0x22e: map_key_clear(KEY_ZOOMOUT);		break;
		case 0x22f: map_key_clear(KEY_ZOOMRESET);	break;
		case 0x233: map_key_clear(KEY_SCROLLUP);	break;
		case 0x234: map_key_clear(KEY_SCROLLDOWN);	break;
		case 0x238: map_rel(REL_HWHEEL);		break;
808
		case 0x23d: map_key_clear(KEY_EDIT);		break;
J
Jiri Slaby 已提交
809
		case 0x25f: map_key_clear(KEY_CANCEL);		break;
810 811
		case 0x269: map_key_clear(KEY_INSERT);		break;
		case 0x26a: map_key_clear(KEY_DELETE);		break;
J
Jiri Slaby 已提交
812 813 814 815 816 817 818 819 820 821
		case 0x279: map_key_clear(KEY_REDO);		break;

		case 0x289: map_key_clear(KEY_REPLY);		break;
		case 0x28b: map_key_clear(KEY_FORWARDMAIL);	break;
		case 0x28c: map_key_clear(KEY_SEND);		break;

		default:    goto ignore;
		}
		break;

822
	case HID_UP_GENDEVCTRLS:
823
		if (hidinput_setup_battery(device, HID_INPUT_REPORT, field))
824
			goto ignore;
825
		else
826 827 828
			goto unknown;
		break;

J
Jiri Slaby 已提交
829 830 831 832 833 834 835 836 837 838 839 840 841 842 843
	case HID_UP_HPVENDOR:	/* Reported on a Dutch layout HP5308 */
		set_bit(EV_REP, input->evbit);
		switch (usage->hid & HID_USAGE) {
		case 0x021: map_key_clear(KEY_PRINT);           break;
		case 0x070: map_key_clear(KEY_HP);		break;
		case 0x071: map_key_clear(KEY_CAMERA);		break;
		case 0x072: map_key_clear(KEY_SOUND);		break;
		case 0x073: map_key_clear(KEY_QUESTION);	break;
		case 0x080: map_key_clear(KEY_EMAIL);		break;
		case 0x081: map_key_clear(KEY_CHAT);		break;
		case 0x082: map_key_clear(KEY_SEARCH);		break;
		case 0x083: map_key_clear(KEY_CONNECT);	        break;
		case 0x084: map_key_clear(KEY_FINANCE);		break;
		case 0x085: map_key_clear(KEY_SPORT);		break;
		case 0x086: map_key_clear(KEY_SHOP);	        break;
844 845 846 847 848 849 850 851 852
		default:    goto ignore;
		}
		break;

	case HID_UP_HPVENDOR2:
		set_bit(EV_REP, input->evbit);
		switch (usage->hid & HID_USAGE) {
		case 0x003: map_key_clear(KEY_BRIGHTNESSDOWN);	break;
		case 0x004: map_key_clear(KEY_BRIGHTNESSUP);	break;
J
Jiri Slaby 已提交
853 854 855
		default:    goto ignore;
		}
		break;
856

J
Jiri Slaby 已提交
857 858
	case HID_UP_MSVENDOR:
		goto ignore;
859

J
Jiri Slaby 已提交
860 861 862
	case HID_UP_CUSTOM: /* Reported on Logitech and Apple USB keyboards */
		set_bit(EV_REP, input->evbit);
		goto ignore;
863

J
Jiri Slaby 已提交
864 865
	case HID_UP_LOGIVENDOR:
		goto ignore;
866

J
Jiri Slaby 已提交
867 868 869 870 871 872
	case HID_UP_PID:
		switch (usage->hid & HID_USAGE) {
		case 0xa4: map_key_clear(BTN_DEAD);	break;
		default: goto ignore;
		}
		break;
873

J
Jiri Slaby 已提交
874 875 876 877 878
	default:
	unknown:
		if (field->report_size == 1) {
			if (field->report->type == HID_OUTPUT_REPORT) {
				map_led(LED_MISC);
879 880
				break;
			}
J
Jiri Slaby 已提交
881
			map_key(BTN_MISC);
882
			break;
J
Jiri Slaby 已提交
883 884 885 886 887 888 889
		}
		if (field->flags & HID_MAIN_ITEM_RELATIVE) {
			map_rel(REL_MISC);
			break;
		}
		map_abs(ABS_MISC);
		break;
890 891
	}

892
mapped:
J
Jiri Slaby 已提交
893 894 895 896
	if (device->driver->input_mapped && device->driver->input_mapped(device,
				hidinput, field, usage, &bit, &max) < 0)
		goto ignore;

897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919
	set_bit(usage->type, input->evbit);

	while (usage->code <= max && test_and_set_bit(usage->code, bit))
		usage->code = find_next_zero_bit(bit, max + 1, usage->code);

	if (usage->code > max)
		goto ignore;


	if (usage->type == EV_ABS) {

		int a = field->logical_minimum;
		int b = field->logical_maximum;

		if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
			a = field->logical_minimum = 0;
			b = field->logical_maximum = 255;
		}

		if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
			input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
		else	input_set_abs_params(input, usage->code, a, b, 0, 0);

920 921 922
		input_abs_set_res(input, usage->code,
				  hidinput_calc_abs_res(field, usage->code));

923 924 925
		/* use a larger default input buffer for MT devices */
		if (usage->code == ABS_MT_POSITION_X && input->hint_events_per_packet == 0)
			input_set_events_per_packet(input, 60);
926 927 928 929 930 931 932 933 934 935 936 937 938
	}

	if (usage->type == EV_ABS &&
	    (usage->hat_min < usage->hat_max || usage->hat_dir)) {
		int i;
		for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
			input_set_abs_params(input, i, -1, 1, 0, 0);
			set_bit(i, input->absbit);
		}
		if (usage->hat_dir && !field->dpad)
			field->dpad = usage->code;
	}

939 940 941 942 943 944 945 946 947 948
	/* for those devices which produce Consumer volume usage as relative,
	 * we emulate pressing volumeup/volumedown appropriate number of times
	 * in hidinput_hid_event()
	 */
	if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
			(usage->code == ABS_VOLUME)) {
		set_bit(KEY_VOLUMEUP, input->keybit);
		set_bit(KEY_VOLUMEDOWN, input->keybit);
	}

949 950 951 952 953
	if (usage->type == EV_KEY) {
		set_bit(EV_MSC, input->evbit);
		set_bit(MSC_SCAN, input->mscbit);
	}

954 955
ignore:
	return;
956

957 958 959 960 961
}

void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
{
	struct input_dev *input;
A
Al Viro 已提交
962
	unsigned *quirks = &hid->quirks;
963 964 965 966 967 968 969 970 971 972 973 974 975 976 977

	if (!field->hidinput)
		return;

	input = field->hidinput->input;

	if (!usage->type)
		return;

	if (usage->hat_min < usage->hat_max || usage->hat_dir) {
		int hat_dir = usage->hat_dir;
		if (!hat_dir)
			hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
		if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
		input_event(input, usage->type, usage->code    , hid_hat_to_axis[hat_dir].x);
978 979 980
		input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
		return;
	}
981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003

	if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */
		*quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
		return;
	}

	if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */
		if (value) {
			input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
			return;
		}
		input_event(input, usage->type, usage->code, 0);
		input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
		return;
	}

	if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */
		int a = field->logical_minimum;
		int b = field->logical_maximum;
		input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3));
	}

	if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
1004
		dbg_hid("Maximum Effects - %d\n",value);
1005 1006 1007 1008
		return;
	}

	if (usage->hid == (HID_UP_PID | 0x7fUL)) {
1009
		dbg_hid("PID Pool Report\n");
1010 1011 1012 1013 1014 1015
		return;
	}

	if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
		return;

1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030
	if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
			(usage->code == ABS_VOLUME)) {
		int count = abs(value);
		int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN;
		int i;

		for (i = 0; i < count; i++) {
			input_event(input, EV_KEY, direction, 1);
			input_sync(input);
			input_event(input, EV_KEY, direction, 0);
			input_sync(input);
		}
		return;
	}

1031 1032 1033 1034 1035 1036 1037
	/*
	 * Ignore out-of-range values as per HID specification,
	 * section 5.10 and 6.2.25
	 */
	if ((field->flags & HID_MAIN_ITEM_VARIABLE) &&
	    (value < field->logical_minimum ||
	     value > field->logical_maximum)) {
1038 1039 1040 1041
		dbg_hid("Ignoring out-of-range value %x\n", value);
		return;
	}

1042 1043 1044
	/* report the usage code as scancode if the key status has changed */
	if (usage->type == EV_KEY && !!test_bit(usage->code, input->key) != value)
		input_event(input, EV_MSC, MSC_SCAN, usage->hid);
1045

1046 1047 1048 1049 1050 1051 1052 1053 1054 1055
	input_event(input, usage->type, usage->code, value);

	if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY))
		input_event(input, usage->type, usage->code, 0);
}

void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
{
	struct hid_input *hidinput;

1056 1057 1058
	if (hid->quirks & HID_QUIRK_NO_INPUT_SYNC)
		return;

1059 1060 1061
	list_for_each_entry(hidinput, &hid->inputs, list)
		input_sync(hidinput->input);
}
J
Jiri Kosina 已提交
1062
EXPORT_SYMBOL_GPL(hidinput_report_event);
1063

J
Jiri Kosina 已提交
1064
int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078
{
	struct hid_report *report;
	int i, j;

	list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
		for (i = 0; i < report->maxfield; i++) {
			*field = report->field[i];
			for (j = 0; j < (*field)->maxusage; j++)
				if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
					return j;
		}
	}
	return -1;
}
J
Jiri Kosina 已提交
1079
EXPORT_SYMBOL_GPL(hidinput_find_field);
1080

1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122
struct hid_field *hidinput_get_led_field(struct hid_device *hid)
{
	struct hid_report *report;
	struct hid_field *field;
	int i, j;

	list_for_each_entry(report,
			    &hid->report_enum[HID_OUTPUT_REPORT].report_list,
			    list) {
		for (i = 0; i < report->maxfield; i++) {
			field = report->field[i];
			for (j = 0; j < field->maxusage; j++)
				if (field->usage[j].type == EV_LED)
					return field;
		}
	}
	return NULL;
}
EXPORT_SYMBOL_GPL(hidinput_get_led_field);

unsigned int hidinput_count_leds(struct hid_device *hid)
{
	struct hid_report *report;
	struct hid_field *field;
	int i, j;
	unsigned int count = 0;

	list_for_each_entry(report,
			    &hid->report_enum[HID_OUTPUT_REPORT].report_list,
			    list) {
		for (i = 0; i < report->maxfield; i++) {
			field = report->field[i];
			for (j = 0; j < field->maxusage; j++)
				if (field->usage[j].type == EV_LED &&
				    field->value[j])
					count += 1;
		}
	}
	return count;
}
EXPORT_SYMBOL_GPL(hidinput_count_leds);

1123 1124
static int hidinput_open(struct input_dev *dev)
{
1125 1126
	struct hid_device *hid = input_get_drvdata(dev);

1127
	return hid_hw_open(hid);
1128 1129 1130 1131
}

static void hidinput_close(struct input_dev *dev)
{
1132 1133
	struct hid_device *hid = input_get_drvdata(dev);

1134
	hid_hw_close(hid);
1135 1136
}

1137 1138 1139 1140 1141 1142 1143 1144 1145 1146
static void report_features(struct hid_device *hid)
{
	struct hid_driver *drv = hid->driver;
	struct hid_report_enum *rep_enum;
	struct hid_report *rep;
	int i, j;

	rep_enum = &hid->report_enum[HID_FEATURE_REPORT];
	list_for_each_entry(rep, &rep_enum->report_list, list)
		for (i = 0; i < rep->maxfield; i++)
1147 1148
			for (j = 0; j < rep->field[i]->maxusage; j++) {
				/* Verify if Battery Strength feature is available */
1149
				hidinput_setup_battery(hid, HID_FEATURE_REPORT, rep->field[i]);
1150 1151 1152 1153 1154

				if (drv->feature_mapping)
					drv->feature_mapping(hid, rep->field[i],
							     rep->field[i]->usage + j);
			}
1155 1156
}

1157 1158 1159 1160 1161 1162
/*
 * Register the input device; print a message.
 * Configure the input layer interface
 * Read all reports and initialize the absolute field values.
 */

J
Jiri Slaby 已提交
1163
int hidinput_connect(struct hid_device *hid, unsigned int force)
1164
{
1165
	struct hid_driver *drv = hid->driver;
1166 1167 1168 1169 1170 1171 1172
	struct hid_report *report;
	struct hid_input *hidinput = NULL;
	struct input_dev *input_dev;
	int i, j, k;

	INIT_LIST_HEAD(&hid->inputs);

J
Jiri Slaby 已提交
1173 1174 1175 1176 1177 1178 1179 1180
	if (!force) {
		for (i = 0; i < hid->maxcollection; i++) {
			struct hid_collection *col = &hid->collection[i];
			if (col->type == HID_COLLECTION_APPLICATION ||
					col->type == HID_COLLECTION_PHYSICAL)
				if (IS_INPUT_APPLICATION(col->usage))
					break;
		}
1181

J
Jiri Slaby 已提交
1182 1183 1184
		if (i == hid->maxcollection)
			return -1;
	}
1185

1186 1187 1188
	report_features(hid);

	for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
1189 1190 1191
		if (k == HID_OUTPUT_REPORT &&
			hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
			continue;
1192

1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203
		list_for_each_entry(report, &hid->report_enum[k].report_list, list) {

			if (!report->maxfield)
				continue;

			if (!hidinput) {
				hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
				input_dev = input_allocate_device();
				if (!hidinput || !input_dev) {
					kfree(hidinput);
					input_free_device(input_dev);
1204
					hid_err(hid, "Out of memory during hid input probe\n");
1205
					goto out_unwind;
1206 1207
				}

1208
				input_set_drvdata(input_dev, hid);
J
Jiri Slaby 已提交
1209 1210
				input_dev->event =
					hid->ll_driver->hidinput_input_event;
1211 1212
				input_dev->open = hidinput_open;
				input_dev->close = hidinput_close;
1213 1214
				input_dev->setkeycode = hidinput_setkeycode;
				input_dev->getkeycode = hidinput_getkeycode;
1215 1216 1217 1218

				input_dev->name = hid->name;
				input_dev->phys = hid->phys;
				input_dev->uniq = hid->uniq;
J
Jiri Kosina 已提交
1219 1220 1221 1222
				input_dev->id.bustype = hid->bus;
				input_dev->id.vendor  = hid->vendor;
				input_dev->id.product = hid->product;
				input_dev->id.version = hid->version;
J
Jiri Slaby 已提交
1223
				input_dev->dev.parent = hid->dev.parent;
1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239
				hidinput->input = input_dev;
				list_add_tail(&hidinput->list, &hid->inputs);
			}

			for (i = 0; i < report->maxfield; i++)
				for (j = 0; j < report->field[i]->maxusage; j++)
					hidinput_configure_usage(hidinput, report->field[i],
								 report->field[i]->usage + j);

			if (hid->quirks & HID_QUIRK_MULTI_INPUT) {
				/* This will leave hidinput NULL, so that it
				 * allocates another one if we have more inputs on
				 * the same interface. Some devices (e.g. Happ's
				 * UGCI) cram a lot of unrelated inputs into the
				 * same interface. */
				hidinput->report = report;
1240 1241
				if (drv->input_configured)
					drv->input_configured(hid, hidinput);
1242 1243
				if (input_register_device(hidinput->input))
					goto out_cleanup;
1244 1245 1246
				hidinput = NULL;
			}
		}
1247
	}
1248

1249 1250 1251 1252 1253 1254
	if (hidinput) {
		if (drv->input_configured)
			drv->input_configured(hid, hidinput);
		if (input_register_device(hidinput->input))
			goto out_cleanup;
	}
1255 1256

	return 0;
1257 1258

out_cleanup:
1259
	list_del(&hidinput->list);
1260 1261 1262 1263 1264 1265 1266
	input_free_device(hidinput->input);
	kfree(hidinput);
out_unwind:
	/* unwind the ones we already registered */
	hidinput_disconnect(hid);

	return -1;
1267
}
J
Jiri Kosina 已提交
1268
EXPORT_SYMBOL_GPL(hidinput_connect);
1269 1270 1271 1272 1273

void hidinput_disconnect(struct hid_device *hid)
{
	struct hid_input *hidinput, *next;

1274 1275
	hidinput_cleanup_battery(hid);

1276 1277 1278 1279 1280 1281
	list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
		list_del(&hidinput->list);
		input_unregister_device(hidinput->input);
		kfree(hidinput);
	}
}
J
Jiri Kosina 已提交
1282 1283
EXPORT_SYMBOL_GPL(hidinput_disconnect);