1/* 2 * HID driver for multitouch panels 3 * 4 * Copyright (c) 2010-2012 Stephane Chatty <chatty@enac.fr> 5 * Copyright (c) 2010-2013 Benjamin Tissoires <benjamin.tissoires@gmail.com> 6 * Copyright (c) 2010-2012 Ecole Nationale de l'Aviation Civile, France 7 * Copyright (c) 2012-2013 Red Hat, Inc 8 * 9 * This code is partly based on hid-egalax.c: 10 * 11 * Copyright (c) 2010 Stephane Chatty <chatty@enac.fr> 12 * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se> 13 * Copyright (c) 2010 Canonical, Ltd. 14 * 15 * This code is partly based on hid-3m-pct.c: 16 * 17 * Copyright (c) 2009-2010 Stephane Chatty <chatty@enac.fr> 18 * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se> 19 * Copyright (c) 2010 Canonical, Ltd. 20 * 21 */ 22 23/* 24 * This program is free software; you can redistribute it and/or modify it 25 * under the terms of the GNU General Public License as published by the Free 26 * Software Foundation; either version 2 of the License, or (at your option) 27 * any later version. 28 */ 29 30/* 31 * This driver is regularly tested thanks to the tool hid-test[1]. 32 * This tool relies on hid-replay[2] and a database of hid devices[3]. 33 * Please run these regression tests before patching this module so that 34 * your patch won't break existing known devices. 35 * 36 * [1] https://github.com/bentiss/hid-test 37 * [2] https://github.com/bentiss/hid-replay 38 * [3] https://github.com/bentiss/hid-devices 39 */ 40 41#include <linux/device.h> 42#include <linux/hid.h> 43#include <linux/module.h> 44#include <linux/slab.h> 45#include <linux/input/mt.h> 46#include <linux/string.h> 47 48 49MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>"); 50MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>"); 51MODULE_DESCRIPTION("HID multitouch panels"); 52MODULE_LICENSE("GPL"); 53 54#include "hid-ids.h" 55 56/* quirks to control the device */ 57#define MT_QUIRK_NOT_SEEN_MEANS_UP (1 << 0) 58#define MT_QUIRK_SLOT_IS_CONTACTID (1 << 1) 59#define MT_QUIRK_CYPRESS (1 << 2) 60#define MT_QUIRK_SLOT_IS_CONTACTNUMBER (1 << 3) 61#define MT_QUIRK_ALWAYS_VALID (1 << 4) 62#define MT_QUIRK_VALID_IS_INRANGE (1 << 5) 63#define MT_QUIRK_VALID_IS_CONFIDENCE (1 << 6) 64#define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE (1 << 8) 65#define MT_QUIRK_NO_AREA (1 << 9) 66#define MT_QUIRK_IGNORE_DUPLICATES (1 << 10) 67#define MT_QUIRK_HOVERING (1 << 11) 68#define MT_QUIRK_CONTACT_CNT_ACCURATE (1 << 12) 69#define MT_QUIRK_FORCE_GET_FEATURE (1 << 13) 70 71#define MT_INPUTMODE_TOUCHSCREEN 0x02 72#define MT_INPUTMODE_TOUCHPAD 0x03 73 74#define MT_BUTTONTYPE_CLICKPAD 0 75 76struct mt_slot { 77 __s32 x, y, cx, cy, p, w, h; 78 __s32 contactid; /* the device ContactID assigned to this slot */ 79 bool touch_state; /* is the touch valid? */ 80 bool inrange_state; /* is the finger in proximity of the sensor? */ 81}; 82 83struct mt_class { 84 __s32 name; /* MT_CLS */ 85 __s32 quirks; 86 __s32 sn_move; /* Signal/noise ratio for move events */ 87 __s32 sn_width; /* Signal/noise ratio for width events */ 88 __s32 sn_height; /* Signal/noise ratio for height events */ 89 __s32 sn_pressure; /* Signal/noise ratio for pressure events */ 90 __u8 maxcontacts; 91 bool is_indirect; /* true for touchpads */ 92 bool export_all_inputs; /* do not ignore mouse, keyboards, etc... */ 93}; 94 95struct mt_fields { 96 unsigned usages[HID_MAX_FIELDS]; 97 unsigned int length; 98}; 99 100struct mt_device { 101 struct mt_slot curdata; /* placeholder of incoming data */ 102 struct mt_class mtclass; /* our mt device class */ 103 struct mt_fields *fields; /* temporary placeholder for storing the 104 multitouch fields */ 105 int cc_index; /* contact count field index in the report */ 106 int cc_value_index; /* contact count value index in the field */ 107 unsigned last_slot_field; /* the last field of a slot */ 108 unsigned mt_report_id; /* the report ID of the multitouch device */ 109 __s16 inputmode; /* InputMode HID feature, -1 if non-existent */ 110 __s16 inputmode_index; /* InputMode HID feature index in the report */ 111 __s16 maxcontact_report_id; /* Maximum Contact Number HID feature, 112 -1 if non-existent */ 113 __u8 inputmode_value; /* InputMode HID feature value */ 114 __u8 num_received; /* how many contacts we received */ 115 __u8 num_expected; /* expected last contact index */ 116 __u8 maxcontacts; 117 __u8 touches_by_report; /* how many touches are present in one report: 118 * 1 means we should use a serial protocol 119 * > 1 means hybrid (multitouch) protocol */ 120 __u8 buttons_count; /* number of physical buttons per touchpad */ 121 bool is_buttonpad; /* is this device a button pad? */ 122 bool serial_maybe; /* need to check for serial protocol */ 123 bool curvalid; /* is the current contact valid? */ 124 unsigned mt_flags; /* flags to pass to input-mt */ 125}; 126 127static void mt_post_parse_default_settings(struct mt_device *td); 128static void mt_post_parse(struct mt_device *td); 129 130/* classes of device behavior */ 131#define MT_CLS_DEFAULT 0x0001 132 133#define MT_CLS_SERIAL 0x0002 134#define MT_CLS_CONFIDENCE 0x0003 135#define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004 136#define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005 137#define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006 138#define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007 139/* reserved 0x0008 */ 140#define MT_CLS_INRANGE_CONTACTNUMBER 0x0009 141#define MT_CLS_NSMU 0x000a 142/* reserved 0x0010 */ 143/* reserved 0x0011 */ 144#define MT_CLS_WIN_8 0x0012 145#define MT_CLS_EXPORT_ALL_INPUTS 0x0013 146 147/* vendor specific classes */ 148#define MT_CLS_3M 0x0101 149/* reserved 0x0102 */ 150#define MT_CLS_EGALAX 0x0103 151#define MT_CLS_EGALAX_SERIAL 0x0104 152#define MT_CLS_TOPSEED 0x0105 153#define MT_CLS_PANASONIC 0x0106 154#define MT_CLS_FLATFROG 0x0107 155#define MT_CLS_GENERALTOUCH_TWOFINGERS 0x0108 156#define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109 157#define MT_CLS_VTL 0x0110 158 159#define MT_DEFAULT_MAXCONTACT 10 160#define MT_MAX_MAXCONTACT 250 161 162#define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p) 163#define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p) 164 165/* 166 * these device-dependent functions determine what slot corresponds 167 * to a valid contact that was just read. 168 */ 169 170static int cypress_compute_slot(struct mt_device *td) 171{ 172 if (td->curdata.contactid != 0 || td->num_received == 0) 173 return td->curdata.contactid; 174 else 175 return -1; 176} 177 178static struct mt_class mt_classes[] = { 179 { .name = MT_CLS_DEFAULT, 180 .quirks = MT_QUIRK_ALWAYS_VALID | 181 MT_QUIRK_CONTACT_CNT_ACCURATE }, 182 { .name = MT_CLS_NSMU, 183 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP }, 184 { .name = MT_CLS_SERIAL, 185 .quirks = MT_QUIRK_ALWAYS_VALID}, 186 { .name = MT_CLS_CONFIDENCE, 187 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE }, 188 { .name = MT_CLS_CONFIDENCE_CONTACT_ID, 189 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 190 MT_QUIRK_SLOT_IS_CONTACTID }, 191 { .name = MT_CLS_CONFIDENCE_MINUS_ONE, 192 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 193 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE }, 194 { .name = MT_CLS_DUAL_INRANGE_CONTACTID, 195 .quirks = MT_QUIRK_VALID_IS_INRANGE | 196 MT_QUIRK_SLOT_IS_CONTACTID, 197 .maxcontacts = 2 }, 198 { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 199 .quirks = MT_QUIRK_VALID_IS_INRANGE | 200 MT_QUIRK_SLOT_IS_CONTACTNUMBER, 201 .maxcontacts = 2 }, 202 { .name = MT_CLS_INRANGE_CONTACTNUMBER, 203 .quirks = MT_QUIRK_VALID_IS_INRANGE | 204 MT_QUIRK_SLOT_IS_CONTACTNUMBER }, 205 { .name = MT_CLS_WIN_8, 206 .quirks = MT_QUIRK_ALWAYS_VALID | 207 MT_QUIRK_IGNORE_DUPLICATES | 208 MT_QUIRK_HOVERING | 209 MT_QUIRK_CONTACT_CNT_ACCURATE }, 210 { .name = MT_CLS_EXPORT_ALL_INPUTS, 211 .quirks = MT_QUIRK_ALWAYS_VALID | 212 MT_QUIRK_CONTACT_CNT_ACCURATE, 213 .export_all_inputs = true }, 214 215 /* 216 * vendor specific classes 217 */ 218 { .name = MT_CLS_3M, 219 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 220 MT_QUIRK_SLOT_IS_CONTACTID, 221 .sn_move = 2048, 222 .sn_width = 128, 223 .sn_height = 128, 224 .maxcontacts = 60, 225 }, 226 { .name = MT_CLS_EGALAX, 227 .quirks = MT_QUIRK_SLOT_IS_CONTACTID | 228 MT_QUIRK_VALID_IS_INRANGE, 229 .sn_move = 4096, 230 .sn_pressure = 32, 231 }, 232 { .name = MT_CLS_EGALAX_SERIAL, 233 .quirks = MT_QUIRK_SLOT_IS_CONTACTID | 234 MT_QUIRK_ALWAYS_VALID, 235 .sn_move = 4096, 236 .sn_pressure = 32, 237 }, 238 { .name = MT_CLS_TOPSEED, 239 .quirks = MT_QUIRK_ALWAYS_VALID, 240 .is_indirect = true, 241 .maxcontacts = 2, 242 }, 243 { .name = MT_CLS_PANASONIC, 244 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP, 245 .maxcontacts = 4 }, 246 { .name = MT_CLS_GENERALTOUCH_TWOFINGERS, 247 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 248 MT_QUIRK_VALID_IS_INRANGE | 249 MT_QUIRK_SLOT_IS_CONTACTID, 250 .maxcontacts = 2 251 }, 252 { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 253 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 254 MT_QUIRK_SLOT_IS_CONTACTID 255 }, 256 257 { .name = MT_CLS_FLATFROG, 258 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 259 MT_QUIRK_NO_AREA, 260 .sn_move = 2048, 261 .maxcontacts = 40, 262 }, 263 { .name = MT_CLS_VTL, 264 .quirks = MT_QUIRK_ALWAYS_VALID | 265 MT_QUIRK_CONTACT_CNT_ACCURATE | 266 MT_QUIRK_FORCE_GET_FEATURE, 267 }, 268 { } 269}; 270 271static ssize_t mt_show_quirks(struct device *dev, 272 struct device_attribute *attr, 273 char *buf) 274{ 275 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 276 struct mt_device *td = hid_get_drvdata(hdev); 277 278 return sprintf(buf, "%u\n", td->mtclass.quirks); 279} 280 281static ssize_t mt_set_quirks(struct device *dev, 282 struct device_attribute *attr, 283 const char *buf, size_t count) 284{ 285 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 286 struct mt_device *td = hid_get_drvdata(hdev); 287 288 unsigned long val; 289 290 if (kstrtoul(buf, 0, &val)) 291 return -EINVAL; 292 293 td->mtclass.quirks = val; 294 295 if (td->cc_index < 0) 296 td->mtclass.quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; 297 298 return count; 299} 300 301static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks); 302 303static struct attribute *sysfs_attrs[] = { 304 &dev_attr_quirks.attr, 305 NULL 306}; 307 308static struct attribute_group mt_attribute_group = { 309 .attrs = sysfs_attrs 310}; 311 312static void mt_feature_mapping(struct hid_device *hdev, 313 struct hid_field *field, struct hid_usage *usage) 314{ 315 struct mt_device *td = hid_get_drvdata(hdev); 316 317 switch (usage->hid) { 318 case HID_DG_INPUTMODE: 319 /* Ignore if value index is out of bounds. */ 320 if (usage->usage_index >= field->report_count) { 321 dev_err(&hdev->dev, "HID_DG_INPUTMODE out of range\n"); 322 break; 323 } 324 325 if (td->inputmode < 0) { 326 td->inputmode = field->report->id; 327 td->inputmode_index = usage->usage_index; 328 } else { 329 /* 330 * Some elan panels wrongly declare 2 input mode 331 * features, and silently ignore when we set the 332 * value in the second field. Skip the second feature 333 * and hope for the best. 334 */ 335 dev_info(&hdev->dev, 336 "Ignoring the extra HID_DG_INPUTMODE\n"); 337 } 338 339 break; 340 case HID_DG_CONTACTMAX: 341 td->maxcontact_report_id = field->report->id; 342 td->maxcontacts = field->value[0]; 343 if (!td->maxcontacts && 344 field->logical_maximum <= MT_MAX_MAXCONTACT) 345 td->maxcontacts = field->logical_maximum; 346 if (td->mtclass.maxcontacts) 347 /* check if the maxcontacts is given by the class */ 348 td->maxcontacts = td->mtclass.maxcontacts; 349 350 break; 351 case HID_DG_BUTTONTYPE: 352 if (usage->usage_index >= field->report_count) { 353 dev_err(&hdev->dev, "HID_DG_BUTTONTYPE out of range\n"); 354 break; 355 } 356 357 if (field->value[usage->usage_index] == MT_BUTTONTYPE_CLICKPAD) 358 td->is_buttonpad = true; 359 360 break; 361 } 362} 363 364static void set_abs(struct input_dev *input, unsigned int code, 365 struct hid_field *field, int snratio) 366{ 367 int fmin = field->logical_minimum; 368 int fmax = field->logical_maximum; 369 int fuzz = snratio ? (fmax - fmin) / snratio : 0; 370 input_set_abs_params(input, code, fmin, fmax, fuzz, 0); 371 input_abs_set_res(input, code, hidinput_calc_abs_res(field, code)); 372} 373 374static void mt_store_field(struct hid_usage *usage, struct mt_device *td, 375 struct hid_input *hi) 376{ 377 struct mt_fields *f = td->fields; 378 379 if (f->length >= HID_MAX_FIELDS) 380 return; 381 382 f->usages[f->length++] = usage->hid; 383} 384 385static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi, 386 struct hid_field *field, struct hid_usage *usage, 387 unsigned long **bit, int *max) 388{ 389 struct mt_device *td = hid_get_drvdata(hdev); 390 struct mt_class *cls = &td->mtclass; 391 int code; 392 struct hid_usage *prev_usage = NULL; 393 394 if (field->application == HID_DG_TOUCHSCREEN) 395 td->mt_flags |= INPUT_MT_DIRECT; 396 397 /* 398 * Model touchscreens providing buttons as touchpads. 399 */ 400 if (field->application == HID_DG_TOUCHPAD || 401 (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) { 402 td->mt_flags |= INPUT_MT_POINTER; 403 td->inputmode_value = MT_INPUTMODE_TOUCHPAD; 404 } 405 406 /* count the buttons on touchpads */ 407 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) 408 td->buttons_count++; 409 410 if (usage->usage_index) 411 prev_usage = &field->usage[usage->usage_index - 1]; 412 413 switch (usage->hid & HID_USAGE_PAGE) { 414 415 case HID_UP_GENDESK: 416 switch (usage->hid) { 417 case HID_GD_X: 418 if (prev_usage && (prev_usage->hid == usage->hid)) { 419 hid_map_usage(hi, usage, bit, max, 420 EV_ABS, ABS_MT_TOOL_X); 421 set_abs(hi->input, ABS_MT_TOOL_X, field, 422 cls->sn_move); 423 } else { 424 hid_map_usage(hi, usage, bit, max, 425 EV_ABS, ABS_MT_POSITION_X); 426 set_abs(hi->input, ABS_MT_POSITION_X, field, 427 cls->sn_move); 428 } 429 430 mt_store_field(usage, td, hi); 431 return 1; 432 case HID_GD_Y: 433 if (prev_usage && (prev_usage->hid == usage->hid)) { 434 hid_map_usage(hi, usage, bit, max, 435 EV_ABS, ABS_MT_TOOL_Y); 436 set_abs(hi->input, ABS_MT_TOOL_Y, field, 437 cls->sn_move); 438 } else { 439 hid_map_usage(hi, usage, bit, max, 440 EV_ABS, ABS_MT_POSITION_Y); 441 set_abs(hi->input, ABS_MT_POSITION_Y, field, 442 cls->sn_move); 443 } 444 445 mt_store_field(usage, td, hi); 446 return 1; 447 } 448 return 0; 449 450 case HID_UP_DIGITIZER: 451 switch (usage->hid) { 452 case HID_DG_INRANGE: 453 if (cls->quirks & MT_QUIRK_HOVERING) { 454 hid_map_usage(hi, usage, bit, max, 455 EV_ABS, ABS_MT_DISTANCE); 456 input_set_abs_params(hi->input, 457 ABS_MT_DISTANCE, 0, 1, 0, 0); 458 } 459 mt_store_field(usage, td, hi); 460 return 1; 461 case HID_DG_CONFIDENCE: 462 mt_store_field(usage, td, hi); 463 return 1; 464 case HID_DG_TIPSWITCH: 465 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH); 466 input_set_capability(hi->input, EV_KEY, BTN_TOUCH); 467 mt_store_field(usage, td, hi); 468 return 1; 469 case HID_DG_CONTACTID: 470 mt_store_field(usage, td, hi); 471 td->touches_by_report++; 472 td->mt_report_id = field->report->id; 473 return 1; 474 case HID_DG_WIDTH: 475 hid_map_usage(hi, usage, bit, max, 476 EV_ABS, ABS_MT_TOUCH_MAJOR); 477 if (!(cls->quirks & MT_QUIRK_NO_AREA)) 478 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field, 479 cls->sn_width); 480 mt_store_field(usage, td, hi); 481 return 1; 482 case HID_DG_HEIGHT: 483 hid_map_usage(hi, usage, bit, max, 484 EV_ABS, ABS_MT_TOUCH_MINOR); 485 if (!(cls->quirks & MT_QUIRK_NO_AREA)) { 486 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field, 487 cls->sn_height); 488 input_set_abs_params(hi->input, 489 ABS_MT_ORIENTATION, 0, 1, 0, 0); 490 } 491 mt_store_field(usage, td, hi); 492 return 1; 493 case HID_DG_TIPPRESSURE: 494 hid_map_usage(hi, usage, bit, max, 495 EV_ABS, ABS_MT_PRESSURE); 496 set_abs(hi->input, ABS_MT_PRESSURE, field, 497 cls->sn_pressure); 498 mt_store_field(usage, td, hi); 499 return 1; 500 case HID_DG_CONTACTCOUNT: 501 /* Ignore if indexes are out of bounds. */ 502 if (field->index >= field->report->maxfield || 503 usage->usage_index >= field->report_count) 504 return 1; 505 td->cc_index = field->index; 506 td->cc_value_index = usage->usage_index; 507 return 1; 508 case HID_DG_CONTACTMAX: 509 /* we don't set td->last_slot_field as contactcount and 510 * contact max are global to the report */ 511 return -1; 512 case HID_DG_TOUCH: 513 /* Legacy devices use TIPSWITCH and not TOUCH. 514 * Let's just ignore this field. */ 515 return -1; 516 } 517 /* let hid-input decide for the others */ 518 return 0; 519 520 case HID_UP_BUTTON: 521 code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE); 522 hid_map_usage(hi, usage, bit, max, EV_KEY, code); 523 input_set_capability(hi->input, EV_KEY, code); 524 return 1; 525 526 case 0xff000000: 527 /* we do not want to map these: no input-oriented meaning */ 528 return -1; 529 } 530 531 return 0; 532} 533 534static int mt_touch_input_mapped(struct hid_device *hdev, struct hid_input *hi, 535 struct hid_field *field, struct hid_usage *usage, 536 unsigned long **bit, int *max) 537{ 538 if (usage->type == EV_KEY || usage->type == EV_ABS) 539 set_bit(usage->type, hi->input->evbit); 540 541 return -1; 542} 543 544static int mt_compute_slot(struct mt_device *td, struct input_dev *input) 545{ 546 __s32 quirks = td->mtclass.quirks; 547 548 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID) 549 return td->curdata.contactid; 550 551 if (quirks & MT_QUIRK_CYPRESS) 552 return cypress_compute_slot(td); 553 554 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER) 555 return td->num_received; 556 557 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE) 558 return td->curdata.contactid - 1; 559 560 return input_mt_get_slot_by_key(input, td->curdata.contactid); 561} 562 563/* 564 * this function is called when a whole contact has been processed, 565 * so that it can assign it to a slot and store the data there 566 */ 567static void mt_complete_slot(struct mt_device *td, struct input_dev *input) 568{ 569 if ((td->mtclass.quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) && 570 td->num_received >= td->num_expected) 571 return; 572 573 if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) { 574 int slotnum = mt_compute_slot(td, input); 575 struct mt_slot *s = &td->curdata; 576 struct input_mt *mt = input->mt; 577 578 if (slotnum < 0 || slotnum >= td->maxcontacts) 579 return; 580 581 if ((td->mtclass.quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) { 582 struct input_mt_slot *slot = &mt->slots[slotnum]; 583 if (input_mt_is_active(slot) && 584 input_mt_is_used(mt, slot)) 585 return; 586 } 587 588 input_mt_slot(input, slotnum); 589 input_mt_report_slot_state(input, MT_TOOL_FINGER, 590 s->touch_state || s->inrange_state); 591 if (s->touch_state || s->inrange_state) { 592 /* this finger is in proximity of the sensor */ 593 int wide = (s->w > s->h); 594 /* divided by two to match visual scale of touch */ 595 int major = max(s->w, s->h) >> 1; 596 int minor = min(s->w, s->h) >> 1; 597 598 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x); 599 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y); 600 input_event(input, EV_ABS, ABS_MT_TOOL_X, s->cx); 601 input_event(input, EV_ABS, ABS_MT_TOOL_Y, s->cy); 602 input_event(input, EV_ABS, ABS_MT_DISTANCE, 603 !s->touch_state); 604 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide); 605 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p); 606 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major); 607 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor); 608 } 609 } 610 611 td->num_received++; 612} 613 614/* 615 * this function is called when a whole packet has been received and processed, 616 * so that it can decide what to send to the input layer. 617 */ 618static void mt_sync_frame(struct mt_device *td, struct input_dev *input) 619{ 620 input_mt_sync_frame(input); 621 input_sync(input); 622 td->num_received = 0; 623} 624 625static int mt_touch_event(struct hid_device *hid, struct hid_field *field, 626 struct hid_usage *usage, __s32 value) 627{ 628 /* we will handle the hidinput part later, now remains hiddev */ 629 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event) 630 hid->hiddev_hid_event(hid, field, usage, value); 631 632 return 1; 633} 634 635static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field, 636 struct hid_usage *usage, __s32 value) 637{ 638 struct mt_device *td = hid_get_drvdata(hid); 639 __s32 quirks = td->mtclass.quirks; 640 struct input_dev *input = field->hidinput->input; 641 642 if (hid->claimed & HID_CLAIMED_INPUT) { 643 switch (usage->hid) { 644 case HID_DG_INRANGE: 645 if (quirks & MT_QUIRK_VALID_IS_INRANGE) 646 td->curvalid = value; 647 if (quirks & MT_QUIRK_HOVERING) 648 td->curdata.inrange_state = value; 649 break; 650 case HID_DG_TIPSWITCH: 651 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) 652 td->curvalid = value; 653 td->curdata.touch_state = value; 654 break; 655 case HID_DG_CONFIDENCE: 656 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE) 657 td->curvalid = value; 658 break; 659 case HID_DG_CONTACTID: 660 td->curdata.contactid = value; 661 break; 662 case HID_DG_TIPPRESSURE: 663 td->curdata.p = value; 664 break; 665 case HID_GD_X: 666 if (usage->code == ABS_MT_TOOL_X) 667 td->curdata.cx = value; 668 else 669 td->curdata.x = value; 670 break; 671 case HID_GD_Y: 672 if (usage->code == ABS_MT_TOOL_Y) 673 td->curdata.cy = value; 674 else 675 td->curdata.y = value; 676 break; 677 case HID_DG_WIDTH: 678 td->curdata.w = value; 679 break; 680 case HID_DG_HEIGHT: 681 td->curdata.h = value; 682 break; 683 case HID_DG_CONTACTCOUNT: 684 break; 685 case HID_DG_TOUCH: 686 /* do nothing */ 687 break; 688 689 default: 690 if (usage->type) 691 input_event(input, usage->type, usage->code, 692 value); 693 return; 694 } 695 696 if (usage->usage_index + 1 == field->report_count) { 697 /* we only take into account the last report. */ 698 if (usage->hid == td->last_slot_field) 699 mt_complete_slot(td, field->hidinput->input); 700 } 701 702 } 703} 704 705static void mt_touch_report(struct hid_device *hid, struct hid_report *report) 706{ 707 struct mt_device *td = hid_get_drvdata(hid); 708 struct hid_field *field; 709 unsigned count; 710 int r, n; 711 712 /* 713 * Includes multi-packet support where subsequent 714 * packets are sent with zero contactcount. 715 */ 716 if (td->cc_index >= 0) { 717 struct hid_field *field = report->field[td->cc_index]; 718 int value = field->value[td->cc_value_index]; 719 if (value) 720 td->num_expected = value; 721 } 722 723 for (r = 0; r < report->maxfield; r++) { 724 field = report->field[r]; 725 count = field->report_count; 726 727 if (!(HID_MAIN_ITEM_VARIABLE & field->flags)) 728 continue; 729 730 for (n = 0; n < count; n++) 731 mt_process_mt_event(hid, field, &field->usage[n], 732 field->value[n]); 733 } 734 735 if (td->num_received >= td->num_expected) 736 mt_sync_frame(td, report->field[0]->hidinput->input); 737} 738 739static void mt_touch_input_configured(struct hid_device *hdev, 740 struct hid_input *hi) 741{ 742 struct mt_device *td = hid_get_drvdata(hdev); 743 struct mt_class *cls = &td->mtclass; 744 struct input_dev *input = hi->input; 745 746 if (!td->maxcontacts) 747 td->maxcontacts = MT_DEFAULT_MAXCONTACT; 748 749 mt_post_parse(td); 750 if (td->serial_maybe) 751 mt_post_parse_default_settings(td); 752 753 if (cls->is_indirect) 754 td->mt_flags |= INPUT_MT_POINTER; 755 756 if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) 757 td->mt_flags |= INPUT_MT_DROP_UNUSED; 758 759 /* check for clickpads */ 760 if ((td->mt_flags & INPUT_MT_POINTER) && (td->buttons_count == 1)) 761 td->is_buttonpad = true; 762 763 if (td->is_buttonpad) 764 __set_bit(INPUT_PROP_BUTTONPAD, input->propbit); 765 766 input_mt_init_slots(input, td->maxcontacts, td->mt_flags); 767 768 td->mt_flags = 0; 769} 770 771static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi, 772 struct hid_field *field, struct hid_usage *usage, 773 unsigned long **bit, int *max) 774{ 775 struct mt_device *td = hid_get_drvdata(hdev); 776 777 /* 778 * If mtclass.export_all_inputs is not set, only map fields from 779 * TouchScreen or TouchPad collections. We need to ignore fields 780 * that belong to other collections such as Mouse that might have 781 * the same GenericDesktop usages. 782 */ 783 if (!td->mtclass.export_all_inputs && 784 field->application != HID_DG_TOUCHSCREEN && 785 field->application != HID_DG_PEN && 786 field->application != HID_DG_TOUCHPAD) 787 return -1; 788 789 /* 790 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN" 791 * for the stylus. 792 */ 793 if (field->physical == HID_DG_STYLUS) 794 return 0; 795 796 if (field->application == HID_DG_TOUCHSCREEN || 797 field->application == HID_DG_TOUCHPAD) 798 return mt_touch_input_mapping(hdev, hi, field, usage, bit, max); 799 800 /* let hid-core decide for the others */ 801 return 0; 802} 803 804static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi, 805 struct hid_field *field, struct hid_usage *usage, 806 unsigned long **bit, int *max) 807{ 808 /* 809 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN" 810 * for the stylus. 811 */ 812 if (field->physical == HID_DG_STYLUS) 813 return 0; 814 815 if (field->application == HID_DG_TOUCHSCREEN || 816 field->application == HID_DG_TOUCHPAD) 817 return mt_touch_input_mapped(hdev, hi, field, usage, bit, max); 818 819 /* let hid-core decide for the others */ 820 return 0; 821} 822 823static int mt_event(struct hid_device *hid, struct hid_field *field, 824 struct hid_usage *usage, __s32 value) 825{ 826 struct mt_device *td = hid_get_drvdata(hid); 827 828 if (field->report->id == td->mt_report_id) 829 return mt_touch_event(hid, field, usage, value); 830 831 return 0; 832} 833 834static void mt_report(struct hid_device *hid, struct hid_report *report) 835{ 836 struct mt_device *td = hid_get_drvdata(hid); 837 struct hid_field *field = report->field[0]; 838 839 if (!(hid->claimed & HID_CLAIMED_INPUT)) 840 return; 841 842 if (report->id == td->mt_report_id) 843 return mt_touch_report(hid, report); 844 845 if (field && field->hidinput && field->hidinput->input) 846 input_sync(field->hidinput->input); 847} 848 849static void mt_set_input_mode(struct hid_device *hdev) 850{ 851 struct mt_device *td = hid_get_drvdata(hdev); 852 struct hid_report *r; 853 struct hid_report_enum *re; 854 struct mt_class *cls = &td->mtclass; 855 char *buf; 856 int report_len; 857 858 if (td->inputmode < 0) 859 return; 860 861 re = &(hdev->report_enum[HID_FEATURE_REPORT]); 862 r = re->report_id_hash[td->inputmode]; 863 if (r) { 864 if (cls->quirks & MT_QUIRK_FORCE_GET_FEATURE) { 865 report_len = hid_report_len(r); 866 buf = hid_alloc_report_buf(r, GFP_KERNEL); 867 if (!buf) { 868 hid_err(hdev, "failed to allocate buffer for report\n"); 869 return; 870 } 871 hid_hw_raw_request(hdev, r->id, buf, report_len, 872 HID_FEATURE_REPORT, 873 HID_REQ_GET_REPORT); 874 kfree(buf); 875 } 876 r->field[0]->value[td->inputmode_index] = td->inputmode_value; 877 hid_hw_request(hdev, r, HID_REQ_SET_REPORT); 878 } 879} 880 881static void mt_set_maxcontacts(struct hid_device *hdev) 882{ 883 struct mt_device *td = hid_get_drvdata(hdev); 884 struct hid_report *r; 885 struct hid_report_enum *re; 886 int fieldmax, max; 887 888 if (td->maxcontact_report_id < 0) 889 return; 890 891 if (!td->mtclass.maxcontacts) 892 return; 893 894 re = &hdev->report_enum[HID_FEATURE_REPORT]; 895 r = re->report_id_hash[td->maxcontact_report_id]; 896 if (r) { 897 max = td->mtclass.maxcontacts; 898 fieldmax = r->field[0]->logical_maximum; 899 max = min(fieldmax, max); 900 if (r->field[0]->value[0] != max) { 901 r->field[0]->value[0] = max; 902 hid_hw_request(hdev, r, HID_REQ_SET_REPORT); 903 } 904 } 905} 906 907static void mt_post_parse_default_settings(struct mt_device *td) 908{ 909 __s32 quirks = td->mtclass.quirks; 910 911 /* unknown serial device needs special quirks */ 912 if (td->touches_by_report == 1) { 913 quirks |= MT_QUIRK_ALWAYS_VALID; 914 quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP; 915 quirks &= ~MT_QUIRK_VALID_IS_INRANGE; 916 quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE; 917 quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; 918 } 919 920 td->mtclass.quirks = quirks; 921} 922 923static void mt_post_parse(struct mt_device *td) 924{ 925 struct mt_fields *f = td->fields; 926 struct mt_class *cls = &td->mtclass; 927 928 if (td->touches_by_report > 0) { 929 int field_count_per_touch = f->length / td->touches_by_report; 930 td->last_slot_field = f->usages[field_count_per_touch - 1]; 931 } 932 933 if (td->cc_index < 0) 934 cls->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; 935} 936 937static void mt_input_configured(struct hid_device *hdev, struct hid_input *hi) 938{ 939 struct mt_device *td = hid_get_drvdata(hdev); 940 char *name; 941 const char *suffix = NULL; 942 struct hid_field *field = hi->report->field[0]; 943 944 if (hi->report->id == td->mt_report_id) 945 mt_touch_input_configured(hdev, hi); 946 947 /* 948 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN" 949 * for the stylus. Check this first, and then rely on the application 950 * field. 951 */ 952 if (hi->report->field[0]->physical == HID_DG_STYLUS) { 953 suffix = "Pen"; 954 /* force BTN_STYLUS to allow tablet matching in udev */ 955 __set_bit(BTN_STYLUS, hi->input->keybit); 956 } else { 957 switch (field->application) { 958 case HID_GD_KEYBOARD: 959 suffix = "Keyboard"; 960 break; 961 case HID_GD_KEYPAD: 962 suffix = "Keypad"; 963 break; 964 case HID_GD_MOUSE: 965 suffix = "Mouse"; 966 break; 967 case HID_DG_STYLUS: 968 suffix = "Pen"; 969 /* force BTN_STYLUS to allow tablet matching in udev */ 970 __set_bit(BTN_STYLUS, hi->input->keybit); 971 break; 972 case HID_DG_TOUCHSCREEN: 973 /* we do not set suffix = "Touchscreen" */ 974 break; 975 case HID_GD_SYSTEM_CONTROL: 976 suffix = "System Control"; 977 break; 978 case HID_CP_CONSUMER_CONTROL: 979 suffix = "Consumer Control"; 980 break; 981 default: 982 suffix = "UNKNOWN"; 983 break; 984 } 985 } 986 987 if (suffix) { 988 name = devm_kzalloc(&hi->input->dev, 989 strlen(hdev->name) + strlen(suffix) + 2, 990 GFP_KERNEL); 991 if (name) { 992 sprintf(name, "%s %s", hdev->name, suffix); 993 hi->input->name = name; 994 } 995 } 996} 997 998static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) 999{ 1000 int ret, i; 1001 struct mt_device *td; 1002 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */ 1003 1004 for (i = 0; mt_classes[i].name ; i++) { 1005 if (id->driver_data == mt_classes[i].name) { 1006 mtclass = &(mt_classes[i]); 1007 break; 1008 } 1009 } 1010 1011 /* This allows the driver to correctly support devices 1012 * that emit events over several HID messages. 1013 */ 1014 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC; 1015 1016 /* 1017 * This allows the driver to handle different input sensors 1018 * that emits events through different reports on the same HID 1019 * device. 1020 */ 1021 hdev->quirks |= HID_QUIRK_MULTI_INPUT; 1022 hdev->quirks |= HID_QUIRK_NO_EMPTY_INPUT; 1023 1024 /* 1025 * Handle special quirks for Windows 8 certified devices. 1026 */ 1027 if (id->group == HID_GROUP_MULTITOUCH_WIN_8) 1028 /* 1029 * Some multitouch screens do not like to be polled for input 1030 * reports. Fortunately, the Win8 spec says that all touches 1031 * should be sent during each report, making the initialization 1032 * of input reports unnecessary. 1033 */ 1034 hdev->quirks |= HID_QUIRK_NO_INIT_INPUT_REPORTS; 1035 1036 td = devm_kzalloc(&hdev->dev, sizeof(struct mt_device), GFP_KERNEL); 1037 if (!td) { 1038 dev_err(&hdev->dev, "cannot allocate multitouch data\n"); 1039 return -ENOMEM; 1040 } 1041 td->mtclass = *mtclass; 1042 td->inputmode = -1; 1043 td->maxcontact_report_id = -1; 1044 td->inputmode_value = MT_INPUTMODE_TOUCHSCREEN; 1045 td->cc_index = -1; 1046 td->mt_report_id = -1; 1047 hid_set_drvdata(hdev, td); 1048 1049 td->fields = devm_kzalloc(&hdev->dev, sizeof(struct mt_fields), 1050 GFP_KERNEL); 1051 if (!td->fields) { 1052 dev_err(&hdev->dev, "cannot allocate multitouch fields data\n"); 1053 return -ENOMEM; 1054 } 1055 1056 if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID) 1057 td->serial_maybe = true; 1058 1059 ret = hid_parse(hdev); 1060 if (ret != 0) 1061 return ret; 1062 1063 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); 1064 if (ret) 1065 return ret; 1066 1067 ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group); 1068 1069 mt_set_maxcontacts(hdev); 1070 mt_set_input_mode(hdev); 1071 1072 /* release .fields memory as it is not used anymore */ 1073 devm_kfree(&hdev->dev, td->fields); 1074 td->fields = NULL; 1075 1076 return 0; 1077} 1078 1079#ifdef CONFIG_PM 1080static int mt_reset_resume(struct hid_device *hdev) 1081{ 1082 mt_set_maxcontacts(hdev); 1083 mt_set_input_mode(hdev); 1084 return 0; 1085} 1086 1087static int mt_resume(struct hid_device *hdev) 1088{ 1089 /* Some Elan legacy devices require SET_IDLE to be set on resume. 1090 * It should be safe to send it to other devices too. 1091 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */ 1092 1093 hid_hw_idle(hdev, 0, 0, HID_REQ_SET_IDLE); 1094 1095 return 0; 1096} 1097#endif 1098 1099static void mt_remove(struct hid_device *hdev) 1100{ 1101 sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group); 1102 hid_hw_stop(hdev); 1103} 1104 1105/* 1106 * This list contains only: 1107 * - VID/PID of products not working with the default multitouch handling 1108 * - 2 generic rules. 1109 * So there is no point in adding here any device with MT_CLS_DEFAULT. 1110 */ 1111static const struct hid_device_id mt_devices[] = { 1112 1113 /* 3M panels */ 1114 { .driver_data = MT_CLS_3M, 1115 MT_USB_DEVICE(USB_VENDOR_ID_3M, 1116 USB_DEVICE_ID_3M1968) }, 1117 { .driver_data = MT_CLS_3M, 1118 MT_USB_DEVICE(USB_VENDOR_ID_3M, 1119 USB_DEVICE_ID_3M2256) }, 1120 { .driver_data = MT_CLS_3M, 1121 MT_USB_DEVICE(USB_VENDOR_ID_3M, 1122 USB_DEVICE_ID_3M3266) }, 1123 1124 /* Anton devices */ 1125 { .driver_data = MT_CLS_EXPORT_ALL_INPUTS, 1126 MT_USB_DEVICE(USB_VENDOR_ID_ANTON, 1127 USB_DEVICE_ID_ANTON_TOUCH_PAD) }, 1128 1129 /* Atmel panels */ 1130 { .driver_data = MT_CLS_SERIAL, 1131 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL, 1132 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) }, 1133 1134 /* Baanto multitouch devices */ 1135 { .driver_data = MT_CLS_NSMU, 1136 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO, 1137 USB_DEVICE_ID_BAANTO_MT_190W2) }, 1138 1139 /* Cando panels */ 1140 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 1141 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1142 USB_DEVICE_ID_CANDO_MULTI_TOUCH) }, 1143 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 1144 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1145 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) }, 1146 1147 /* Chunghwa Telecom touch panels */ 1148 { .driver_data = MT_CLS_NSMU, 1149 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT, 1150 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) }, 1151 1152 /* CVTouch panels */ 1153 { .driver_data = MT_CLS_NSMU, 1154 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH, 1155 USB_DEVICE_ID_CVTOUCH_SCREEN) }, 1156 1157 /* eGalax devices (resistive) */ 1158 { .driver_data = MT_CLS_EGALAX, 1159 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1160 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) }, 1161 { .driver_data = MT_CLS_EGALAX, 1162 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1163 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) }, 1164 1165 /* eGalax devices (capacitive) */ 1166 { .driver_data = MT_CLS_EGALAX_SERIAL, 1167 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1168 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) }, 1169 { .driver_data = MT_CLS_EGALAX, 1170 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1171 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) }, 1172 { .driver_data = MT_CLS_EGALAX_SERIAL, 1173 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1174 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) }, 1175 { .driver_data = MT_CLS_EGALAX_SERIAL, 1176 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1177 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) }, 1178 { .driver_data = MT_CLS_EGALAX_SERIAL, 1179 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1180 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) }, 1181 { .driver_data = MT_CLS_EGALAX_SERIAL, 1182 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1183 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) }, 1184 { .driver_data = MT_CLS_EGALAX, 1185 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1186 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) }, 1187 { .driver_data = MT_CLS_EGALAX, 1188 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1189 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) }, 1190 { .driver_data = MT_CLS_EGALAX_SERIAL, 1191 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1192 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) }, 1193 { .driver_data = MT_CLS_EGALAX, 1194 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 1195 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) }, 1196 { .driver_data = MT_CLS_EGALAX, 1197 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 1198 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) }, 1199 { .driver_data = MT_CLS_EGALAX, 1200 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1201 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) }, 1202 { .driver_data = MT_CLS_EGALAX, 1203 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1204 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) }, 1205 { .driver_data = MT_CLS_EGALAX_SERIAL, 1206 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1207 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) }, 1208 { .driver_data = MT_CLS_EGALAX_SERIAL, 1209 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1210 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) }, 1211 { .driver_data = MT_CLS_EGALAX_SERIAL, 1212 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1213 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) }, 1214 1215 /* Elitegroup panel */ 1216 { .driver_data = MT_CLS_SERIAL, 1217 MT_USB_DEVICE(USB_VENDOR_ID_ELITEGROUP, 1218 USB_DEVICE_ID_ELITEGROUP_05D8) }, 1219 1220 /* Flatfrog Panels */ 1221 { .driver_data = MT_CLS_FLATFROG, 1222 MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG, 1223 USB_DEVICE_ID_MULTITOUCH_3200) }, 1224 1225 /* FocalTech Panels */ 1226 { .driver_data = MT_CLS_SERIAL, 1227 MT_USB_DEVICE(USB_VENDOR_ID_CYGNAL, 1228 USB_DEVICE_ID_FOCALTECH_FTXXXX_MULTITOUCH) }, 1229 1230 /* GeneralTouch panel */ 1231 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS, 1232 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1233 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) }, 1234 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1235 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1236 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) }, 1237 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS, 1238 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1239 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0101) }, 1240 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1241 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1242 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0102) }, 1243 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1244 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1245 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0106) }, 1246 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1247 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1248 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A) }, 1249 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1250 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1251 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100) }, 1252 1253 /* Gametel game controller */ 1254 { .driver_data = MT_CLS_NSMU, 1255 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL, 1256 USB_DEVICE_ID_GAMETEL_MT_MODE) }, 1257 1258 /* GoodTouch panels */ 1259 { .driver_data = MT_CLS_NSMU, 1260 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH, 1261 USB_DEVICE_ID_GOODTOUCH_000f) }, 1262 1263 /* Hanvon panels */ 1264 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 1265 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT, 1266 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) }, 1267 1268 /* Ilitek dual touch panel */ 1269 { .driver_data = MT_CLS_NSMU, 1270 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK, 1271 USB_DEVICE_ID_ILITEK_MULTITOUCH) }, 1272 1273 /* MosArt panels */ 1274 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1275 MT_USB_DEVICE(USB_VENDOR_ID_ASUS, 1276 USB_DEVICE_ID_ASUS_T91MT)}, 1277 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1278 MT_USB_DEVICE(USB_VENDOR_ID_ASUS, 1279 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) }, 1280 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1281 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX, 1282 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) }, 1283 1284 /* Panasonic panels */ 1285 { .driver_data = MT_CLS_PANASONIC, 1286 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC, 1287 USB_DEVICE_ID_PANABOARD_UBT780) }, 1288 { .driver_data = MT_CLS_PANASONIC, 1289 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC, 1290 USB_DEVICE_ID_PANABOARD_UBT880) }, 1291 1292 /* Novatek Panel */ 1293 { .driver_data = MT_CLS_NSMU, 1294 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK, 1295 USB_DEVICE_ID_NOVATEK_PCT) }, 1296 1297 /* PixArt optical touch screen */ 1298 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1299 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1300 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) }, 1301 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1302 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1303 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) }, 1304 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1305 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1306 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) }, 1307 1308 /* PixCir-based panels */ 1309 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 1310 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1311 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) }, 1312 1313 /* Quanta-based panels */ 1314 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID, 1315 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA, 1316 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) }, 1317 1318 /* Stantum panels */ 1319 { .driver_data = MT_CLS_CONFIDENCE, 1320 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, 1321 USB_DEVICE_ID_MTP_STM)}, 1322 1323 /* TopSeed panels */ 1324 { .driver_data = MT_CLS_TOPSEED, 1325 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, 1326 USB_DEVICE_ID_TOPSEED2_PERIPAD_701) }, 1327 1328 /* Touch International panels */ 1329 { .driver_data = MT_CLS_NSMU, 1330 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL, 1331 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) }, 1332 1333 /* Unitec panels */ 1334 { .driver_data = MT_CLS_NSMU, 1335 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC, 1336 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) }, 1337 { .driver_data = MT_CLS_NSMU, 1338 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC, 1339 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) }, 1340 1341 /* VTL panels */ 1342 { .driver_data = MT_CLS_VTL, 1343 MT_USB_DEVICE(USB_VENDOR_ID_VTL, 1344 USB_DEVICE_ID_VTL_MULTITOUCH_FF3F) }, 1345 1346 /* Wistron panels */ 1347 { .driver_data = MT_CLS_NSMU, 1348 MT_USB_DEVICE(USB_VENDOR_ID_WISTRON, 1349 USB_DEVICE_ID_WISTRON_OPTICAL_TOUCH) }, 1350 1351 /* XAT */ 1352 { .driver_data = MT_CLS_NSMU, 1353 MT_USB_DEVICE(USB_VENDOR_ID_XAT, 1354 USB_DEVICE_ID_XAT_CSR) }, 1355 1356 /* Xiroku */ 1357 { .driver_data = MT_CLS_NSMU, 1358 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1359 USB_DEVICE_ID_XIROKU_SPX) }, 1360 { .driver_data = MT_CLS_NSMU, 1361 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1362 USB_DEVICE_ID_XIROKU_MPX) }, 1363 { .driver_data = MT_CLS_NSMU, 1364 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1365 USB_DEVICE_ID_XIROKU_CSR) }, 1366 { .driver_data = MT_CLS_NSMU, 1367 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1368 USB_DEVICE_ID_XIROKU_SPX1) }, 1369 { .driver_data = MT_CLS_NSMU, 1370 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1371 USB_DEVICE_ID_XIROKU_MPX1) }, 1372 { .driver_data = MT_CLS_NSMU, 1373 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1374 USB_DEVICE_ID_XIROKU_CSR1) }, 1375 { .driver_data = MT_CLS_NSMU, 1376 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1377 USB_DEVICE_ID_XIROKU_SPX2) }, 1378 { .driver_data = MT_CLS_NSMU, 1379 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1380 USB_DEVICE_ID_XIROKU_MPX2) }, 1381 { .driver_data = MT_CLS_NSMU, 1382 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1383 USB_DEVICE_ID_XIROKU_CSR2) }, 1384 1385 /* Generic MT device */ 1386 { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) }, 1387 1388 /* Generic Win 8 certified MT device */ 1389 { .driver_data = MT_CLS_WIN_8, 1390 HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH_WIN_8, 1391 HID_ANY_ID, HID_ANY_ID) }, 1392 { } 1393}; 1394MODULE_DEVICE_TABLE(hid, mt_devices); 1395 1396static const struct hid_usage_id mt_grabbed_usages[] = { 1397 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID }, 1398 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1} 1399}; 1400 1401static struct hid_driver mt_driver = { 1402 .name = "hid-multitouch", 1403 .id_table = mt_devices, 1404 .probe = mt_probe, 1405 .remove = mt_remove, 1406 .input_mapping = mt_input_mapping, 1407 .input_mapped = mt_input_mapped, 1408 .input_configured = mt_input_configured, 1409 .feature_mapping = mt_feature_mapping, 1410 .usage_table = mt_grabbed_usages, 1411 .event = mt_event, 1412 .report = mt_report, 1413#ifdef CONFIG_PM 1414 .reset_resume = mt_reset_resume, 1415 .resume = mt_resume, 1416#endif 1417}; 1418module_hid_driver(mt_driver); 1419