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/usb.h> 46 #include <linux/input/mt.h> 47 #include <linux/string.h> 48 49 50 MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>"); 51 MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>"); 52 MODULE_DESCRIPTION("HID multitouch panels"); 53 MODULE_LICENSE("GPL"); 54 55 #include "hid-ids.h" 56 57 /* quirks to control the device */ 58 #define MT_QUIRK_NOT_SEEN_MEANS_UP (1 << 0) 59 #define MT_QUIRK_SLOT_IS_CONTACTID (1 << 1) 60 #define MT_QUIRK_CYPRESS (1 << 2) 61 #define MT_QUIRK_SLOT_IS_CONTACTNUMBER (1 << 3) 62 #define MT_QUIRK_ALWAYS_VALID (1 << 4) 63 #define MT_QUIRK_VALID_IS_INRANGE (1 << 5) 64 #define MT_QUIRK_VALID_IS_CONFIDENCE (1 << 6) 65 #define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE (1 << 8) 66 #define MT_QUIRK_NO_AREA (1 << 9) 67 #define MT_QUIRK_IGNORE_DUPLICATES (1 << 10) 68 #define MT_QUIRK_HOVERING (1 << 11) 69 #define MT_QUIRK_CONTACT_CNT_ACCURATE (1 << 12) 70 71 struct mt_slot { 72 __s32 x, y, cx, cy, p, w, h; 73 __s32 contactid; /* the device ContactID assigned to this slot */ 74 bool touch_state; /* is the touch valid? */ 75 bool inrange_state; /* is the finger in proximity of the sensor? */ 76 }; 77 78 struct mt_class { 79 __s32 name; /* MT_CLS */ 80 __s32 quirks; 81 __s32 sn_move; /* Signal/noise ratio for move events */ 82 __s32 sn_width; /* Signal/noise ratio for width events */ 83 __s32 sn_height; /* Signal/noise ratio for height events */ 84 __s32 sn_pressure; /* Signal/noise ratio for pressure events */ 85 __u8 maxcontacts; 86 bool is_indirect; /* true for touchpads */ 87 }; 88 89 struct mt_fields { 90 unsigned usages[HID_MAX_FIELDS]; 91 unsigned int length; 92 }; 93 94 struct mt_device { 95 struct mt_slot curdata; /* placeholder of incoming data */ 96 struct mt_class mtclass; /* our mt device class */ 97 struct mt_fields *fields; /* temporary placeholder for storing the 98 multitouch fields */ 99 int cc_index; /* contact count field index in the report */ 100 int cc_value_index; /* contact count value index in the field */ 101 unsigned last_slot_field; /* the last field of a slot */ 102 unsigned mt_report_id; /* the report ID of the multitouch device */ 103 unsigned pen_report_id; /* the report ID of the pen device */ 104 __s16 inputmode; /* InputMode HID feature, -1 if non-existent */ 105 __s16 inputmode_index; /* InputMode HID feature index in the report */ 106 __s16 maxcontact_report_id; /* Maximum Contact Number HID feature, 107 -1 if non-existent */ 108 __u8 num_received; /* how many contacts we received */ 109 __u8 num_expected; /* expected last contact index */ 110 __u8 maxcontacts; 111 __u8 touches_by_report; /* how many touches are present in one report: 112 * 1 means we should use a serial protocol 113 * > 1 means hybrid (multitouch) protocol */ 114 bool serial_maybe; /* need to check for serial protocol */ 115 bool curvalid; /* is the current contact valid? */ 116 unsigned mt_flags; /* flags to pass to input-mt */ 117 }; 118 119 static void mt_post_parse_default_settings(struct mt_device *td); 120 static void mt_post_parse(struct mt_device *td); 121 122 /* classes of device behavior */ 123 #define MT_CLS_DEFAULT 0x0001 124 125 #define MT_CLS_SERIAL 0x0002 126 #define MT_CLS_CONFIDENCE 0x0003 127 #define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004 128 #define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005 129 #define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006 130 #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007 131 #define MT_CLS_DUAL_NSMU_CONTACTID 0x0008 132 #define MT_CLS_INRANGE_CONTACTNUMBER 0x0009 133 #define MT_CLS_NSMU 0x000a 134 #define MT_CLS_DUAL_CONTACT_NUMBER 0x0010 135 #define MT_CLS_DUAL_CONTACT_ID 0x0011 136 #define MT_CLS_WIN_8 0x0012 137 138 /* vendor specific classes */ 139 #define MT_CLS_3M 0x0101 140 #define MT_CLS_CYPRESS 0x0102 141 #define MT_CLS_EGALAX 0x0103 142 #define MT_CLS_EGALAX_SERIAL 0x0104 143 #define MT_CLS_TOPSEED 0x0105 144 #define MT_CLS_PANASONIC 0x0106 145 #define MT_CLS_FLATFROG 0x0107 146 #define MT_CLS_GENERALTOUCH_TWOFINGERS 0x0108 147 #define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109 148 149 #define MT_DEFAULT_MAXCONTACT 10 150 #define MT_MAX_MAXCONTACT 250 151 152 #define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p) 153 #define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p) 154 155 /* 156 * these device-dependent functions determine what slot corresponds 157 * to a valid contact that was just read. 158 */ 159 160 static int cypress_compute_slot(struct mt_device *td) 161 { 162 if (td->curdata.contactid != 0 || td->num_received == 0) 163 return td->curdata.contactid; 164 else 165 return -1; 166 } 167 168 static struct mt_class mt_classes[] = { 169 { .name = MT_CLS_DEFAULT, 170 .quirks = MT_QUIRK_ALWAYS_VALID | 171 MT_QUIRK_CONTACT_CNT_ACCURATE }, 172 { .name = MT_CLS_NSMU, 173 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP }, 174 { .name = MT_CLS_SERIAL, 175 .quirks = MT_QUIRK_ALWAYS_VALID}, 176 { .name = MT_CLS_CONFIDENCE, 177 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE }, 178 { .name = MT_CLS_CONFIDENCE_CONTACT_ID, 179 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 180 MT_QUIRK_SLOT_IS_CONTACTID }, 181 { .name = MT_CLS_CONFIDENCE_MINUS_ONE, 182 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 183 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE }, 184 { .name = MT_CLS_DUAL_INRANGE_CONTACTID, 185 .quirks = MT_QUIRK_VALID_IS_INRANGE | 186 MT_QUIRK_SLOT_IS_CONTACTID, 187 .maxcontacts = 2 }, 188 { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 189 .quirks = MT_QUIRK_VALID_IS_INRANGE | 190 MT_QUIRK_SLOT_IS_CONTACTNUMBER, 191 .maxcontacts = 2 }, 192 { .name = MT_CLS_DUAL_NSMU_CONTACTID, 193 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 194 MT_QUIRK_SLOT_IS_CONTACTID, 195 .maxcontacts = 2 }, 196 { .name = MT_CLS_INRANGE_CONTACTNUMBER, 197 .quirks = MT_QUIRK_VALID_IS_INRANGE | 198 MT_QUIRK_SLOT_IS_CONTACTNUMBER }, 199 { .name = MT_CLS_DUAL_CONTACT_NUMBER, 200 .quirks = MT_QUIRK_ALWAYS_VALID | 201 MT_QUIRK_CONTACT_CNT_ACCURATE | 202 MT_QUIRK_SLOT_IS_CONTACTNUMBER, 203 .maxcontacts = 2 }, 204 { .name = MT_CLS_DUAL_CONTACT_ID, 205 .quirks = MT_QUIRK_ALWAYS_VALID | 206 MT_QUIRK_CONTACT_CNT_ACCURATE | 207 MT_QUIRK_SLOT_IS_CONTACTID, 208 .maxcontacts = 2 }, 209 { .name = MT_CLS_WIN_8, 210 .quirks = MT_QUIRK_ALWAYS_VALID | 211 MT_QUIRK_IGNORE_DUPLICATES | 212 MT_QUIRK_HOVERING | 213 MT_QUIRK_CONTACT_CNT_ACCURATE }, 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_CYPRESS, 227 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 228 MT_QUIRK_CYPRESS, 229 .maxcontacts = 10 }, 230 { .name = MT_CLS_EGALAX, 231 .quirks = MT_QUIRK_SLOT_IS_CONTACTID | 232 MT_QUIRK_VALID_IS_INRANGE, 233 .sn_move = 4096, 234 .sn_pressure = 32, 235 }, 236 { .name = MT_CLS_EGALAX_SERIAL, 237 .quirks = MT_QUIRK_SLOT_IS_CONTACTID | 238 MT_QUIRK_ALWAYS_VALID, 239 .sn_move = 4096, 240 .sn_pressure = 32, 241 }, 242 { .name = MT_CLS_TOPSEED, 243 .quirks = MT_QUIRK_ALWAYS_VALID, 244 .is_indirect = true, 245 .maxcontacts = 2, 246 }, 247 { .name = MT_CLS_PANASONIC, 248 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP, 249 .maxcontacts = 4 }, 250 { .name = MT_CLS_GENERALTOUCH_TWOFINGERS, 251 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 252 MT_QUIRK_VALID_IS_INRANGE | 253 MT_QUIRK_SLOT_IS_CONTACTID, 254 .maxcontacts = 2 255 }, 256 { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 257 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 258 MT_QUIRK_SLOT_IS_CONTACTID 259 }, 260 261 { .name = MT_CLS_FLATFROG, 262 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 263 MT_QUIRK_NO_AREA, 264 .sn_move = 2048, 265 .maxcontacts = 40, 266 }, 267 { } 268 }; 269 270 static ssize_t mt_show_quirks(struct device *dev, 271 struct device_attribute *attr, 272 char *buf) 273 { 274 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 275 struct mt_device *td = hid_get_drvdata(hdev); 276 277 return sprintf(buf, "%u\n", td->mtclass.quirks); 278 } 279 280 static ssize_t mt_set_quirks(struct device *dev, 281 struct device_attribute *attr, 282 const char *buf, size_t count) 283 { 284 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 285 struct mt_device *td = hid_get_drvdata(hdev); 286 287 unsigned long val; 288 289 if (kstrtoul(buf, 0, &val)) 290 return -EINVAL; 291 292 td->mtclass.quirks = val; 293 294 if (td->cc_index < 0) 295 td->mtclass.quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; 296 297 return count; 298 } 299 300 static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks); 301 302 static struct attribute *sysfs_attrs[] = { 303 &dev_attr_quirks.attr, 304 NULL 305 }; 306 307 static struct attribute_group mt_attribute_group = { 308 .attrs = sysfs_attrs 309 }; 310 311 static void mt_feature_mapping(struct hid_device *hdev, 312 struct hid_field *field, struct hid_usage *usage) 313 { 314 struct mt_device *td = hid_get_drvdata(hdev); 315 316 switch (usage->hid) { 317 case HID_DG_INPUTMODE: 318 /* Ignore if value index is out of bounds. */ 319 if (usage->usage_index >= field->report_count) { 320 dev_err(&hdev->dev, "HID_DG_INPUTMODE out of range\n"); 321 break; 322 } 323 324 td->inputmode = field->report->id; 325 td->inputmode_index = usage->usage_index; 326 327 break; 328 case HID_DG_CONTACTMAX: 329 td->maxcontact_report_id = field->report->id; 330 td->maxcontacts = field->value[0]; 331 if (!td->maxcontacts && 332 field->logical_maximum <= MT_MAX_MAXCONTACT) 333 td->maxcontacts = field->logical_maximum; 334 if (td->mtclass.maxcontacts) 335 /* check if the maxcontacts is given by the class */ 336 td->maxcontacts = td->mtclass.maxcontacts; 337 338 break; 339 } 340 } 341 342 static void set_abs(struct input_dev *input, unsigned int code, 343 struct hid_field *field, int snratio) 344 { 345 int fmin = field->logical_minimum; 346 int fmax = field->logical_maximum; 347 int fuzz = snratio ? (fmax - fmin) / snratio : 0; 348 input_set_abs_params(input, code, fmin, fmax, fuzz, 0); 349 input_abs_set_res(input, code, hidinput_calc_abs_res(field, code)); 350 } 351 352 static void mt_store_field(struct hid_usage *usage, struct mt_device *td, 353 struct hid_input *hi) 354 { 355 struct mt_fields *f = td->fields; 356 357 if (f->length >= HID_MAX_FIELDS) 358 return; 359 360 f->usages[f->length++] = usage->hid; 361 } 362 363 static int mt_pen_input_mapping(struct hid_device *hdev, struct hid_input *hi, 364 struct hid_field *field, struct hid_usage *usage, 365 unsigned long **bit, int *max) 366 { 367 struct mt_device *td = hid_get_drvdata(hdev); 368 369 td->pen_report_id = field->report->id; 370 371 return 0; 372 } 373 374 static int mt_pen_input_mapped(struct hid_device *hdev, struct hid_input *hi, 375 struct hid_field *field, struct hid_usage *usage, 376 unsigned long **bit, int *max) 377 { 378 return 0; 379 } 380 381 static int mt_pen_event(struct hid_device *hid, struct hid_field *field, 382 struct hid_usage *usage, __s32 value) 383 { 384 /* let hid-input handle it */ 385 return 0; 386 } 387 388 static void mt_pen_report(struct hid_device *hid, struct hid_report *report) 389 { 390 struct hid_field *field = report->field[0]; 391 392 input_sync(field->hidinput->input); 393 } 394 395 static void mt_pen_input_configured(struct hid_device *hdev, 396 struct hid_input *hi) 397 { 398 /* force BTN_STYLUS to allow tablet matching in udev */ 399 __set_bit(BTN_STYLUS, hi->input->keybit); 400 } 401 402 static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi, 403 struct hid_field *field, struct hid_usage *usage, 404 unsigned long **bit, int *max) 405 { 406 struct mt_device *td = hid_get_drvdata(hdev); 407 struct mt_class *cls = &td->mtclass; 408 int code; 409 struct hid_usage *prev_usage = NULL; 410 411 if (field->application == HID_DG_TOUCHSCREEN) 412 td->mt_flags |= INPUT_MT_DIRECT; 413 414 /* 415 * Model touchscreens providing buttons as touchpads. 416 */ 417 if (field->application == HID_DG_TOUCHPAD || 418 (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) 419 td->mt_flags |= INPUT_MT_POINTER; 420 421 if (usage->usage_index) 422 prev_usage = &field->usage[usage->usage_index - 1]; 423 424 switch (usage->hid & HID_USAGE_PAGE) { 425 426 case HID_UP_GENDESK: 427 switch (usage->hid) { 428 case HID_GD_X: 429 if (prev_usage && (prev_usage->hid == usage->hid)) { 430 hid_map_usage(hi, usage, bit, max, 431 EV_ABS, ABS_MT_TOOL_X); 432 set_abs(hi->input, ABS_MT_TOOL_X, field, 433 cls->sn_move); 434 } else { 435 hid_map_usage(hi, usage, bit, max, 436 EV_ABS, ABS_MT_POSITION_X); 437 set_abs(hi->input, ABS_MT_POSITION_X, field, 438 cls->sn_move); 439 } 440 441 mt_store_field(usage, td, hi); 442 return 1; 443 case HID_GD_Y: 444 if (prev_usage && (prev_usage->hid == usage->hid)) { 445 hid_map_usage(hi, usage, bit, max, 446 EV_ABS, ABS_MT_TOOL_Y); 447 set_abs(hi->input, ABS_MT_TOOL_Y, field, 448 cls->sn_move); 449 } else { 450 hid_map_usage(hi, usage, bit, max, 451 EV_ABS, ABS_MT_POSITION_Y); 452 set_abs(hi->input, ABS_MT_POSITION_Y, field, 453 cls->sn_move); 454 } 455 456 mt_store_field(usage, td, hi); 457 return 1; 458 } 459 return 0; 460 461 case HID_UP_DIGITIZER: 462 switch (usage->hid) { 463 case HID_DG_INRANGE: 464 if (cls->quirks & MT_QUIRK_HOVERING) { 465 hid_map_usage(hi, usage, bit, max, 466 EV_ABS, ABS_MT_DISTANCE); 467 input_set_abs_params(hi->input, 468 ABS_MT_DISTANCE, 0, 1, 0, 0); 469 } 470 mt_store_field(usage, td, hi); 471 return 1; 472 case HID_DG_CONFIDENCE: 473 mt_store_field(usage, td, hi); 474 return 1; 475 case HID_DG_TIPSWITCH: 476 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH); 477 input_set_capability(hi->input, EV_KEY, BTN_TOUCH); 478 mt_store_field(usage, td, hi); 479 return 1; 480 case HID_DG_CONTACTID: 481 mt_store_field(usage, td, hi); 482 td->touches_by_report++; 483 td->mt_report_id = field->report->id; 484 return 1; 485 case HID_DG_WIDTH: 486 hid_map_usage(hi, usage, bit, max, 487 EV_ABS, ABS_MT_TOUCH_MAJOR); 488 if (!(cls->quirks & MT_QUIRK_NO_AREA)) 489 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field, 490 cls->sn_width); 491 mt_store_field(usage, td, hi); 492 return 1; 493 case HID_DG_HEIGHT: 494 hid_map_usage(hi, usage, bit, max, 495 EV_ABS, ABS_MT_TOUCH_MINOR); 496 if (!(cls->quirks & MT_QUIRK_NO_AREA)) { 497 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field, 498 cls->sn_height); 499 input_set_abs_params(hi->input, 500 ABS_MT_ORIENTATION, 0, 1, 0, 0); 501 } 502 mt_store_field(usage, td, hi); 503 return 1; 504 case HID_DG_TIPPRESSURE: 505 hid_map_usage(hi, usage, bit, max, 506 EV_ABS, ABS_MT_PRESSURE); 507 set_abs(hi->input, ABS_MT_PRESSURE, field, 508 cls->sn_pressure); 509 mt_store_field(usage, td, hi); 510 return 1; 511 case HID_DG_CONTACTCOUNT: 512 /* Ignore if indexes are out of bounds. */ 513 if (field->index >= field->report->maxfield || 514 usage->usage_index >= field->report_count) 515 return 1; 516 td->cc_index = field->index; 517 td->cc_value_index = usage->usage_index; 518 return 1; 519 case HID_DG_CONTACTMAX: 520 /* we don't set td->last_slot_field as contactcount and 521 * contact max are global to the report */ 522 return -1; 523 case HID_DG_TOUCH: 524 /* Legacy devices use TIPSWITCH and not TOUCH. 525 * Let's just ignore this field. */ 526 return -1; 527 } 528 /* let hid-input decide for the others */ 529 return 0; 530 531 case HID_UP_BUTTON: 532 code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE); 533 hid_map_usage(hi, usage, bit, max, EV_KEY, code); 534 input_set_capability(hi->input, EV_KEY, code); 535 return 1; 536 537 case 0xff000000: 538 /* we do not want to map these: no input-oriented meaning */ 539 return -1; 540 } 541 542 return 0; 543 } 544 545 static int mt_touch_input_mapped(struct hid_device *hdev, struct hid_input *hi, 546 struct hid_field *field, struct hid_usage *usage, 547 unsigned long **bit, int *max) 548 { 549 if (usage->type == EV_KEY || usage->type == EV_ABS) 550 set_bit(usage->type, hi->input->evbit); 551 552 return -1; 553 } 554 555 static int mt_compute_slot(struct mt_device *td, struct input_dev *input) 556 { 557 __s32 quirks = td->mtclass.quirks; 558 559 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID) 560 return td->curdata.contactid; 561 562 if (quirks & MT_QUIRK_CYPRESS) 563 return cypress_compute_slot(td); 564 565 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER) 566 return td->num_received; 567 568 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE) 569 return td->curdata.contactid - 1; 570 571 return input_mt_get_slot_by_key(input, td->curdata.contactid); 572 } 573 574 /* 575 * this function is called when a whole contact has been processed, 576 * so that it can assign it to a slot and store the data there 577 */ 578 static void mt_complete_slot(struct mt_device *td, struct input_dev *input) 579 { 580 if ((td->mtclass.quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) && 581 td->num_received >= td->num_expected) 582 return; 583 584 if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) { 585 int slotnum = mt_compute_slot(td, input); 586 struct mt_slot *s = &td->curdata; 587 struct input_mt *mt = input->mt; 588 589 if (slotnum < 0 || slotnum >= td->maxcontacts) 590 return; 591 592 if ((td->mtclass.quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) { 593 struct input_mt_slot *slot = &mt->slots[slotnum]; 594 if (input_mt_is_active(slot) && 595 input_mt_is_used(mt, slot)) 596 return; 597 } 598 599 input_mt_slot(input, slotnum); 600 input_mt_report_slot_state(input, MT_TOOL_FINGER, 601 s->touch_state || s->inrange_state); 602 if (s->touch_state || s->inrange_state) { 603 /* this finger is in proximity of the sensor */ 604 int wide = (s->w > s->h); 605 /* divided by two to match visual scale of touch */ 606 int major = max(s->w, s->h) >> 1; 607 int minor = min(s->w, s->h) >> 1; 608 609 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x); 610 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y); 611 input_event(input, EV_ABS, ABS_MT_TOOL_X, s->cx); 612 input_event(input, EV_ABS, ABS_MT_TOOL_Y, s->cy); 613 input_event(input, EV_ABS, ABS_MT_DISTANCE, 614 !s->touch_state); 615 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide); 616 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p); 617 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major); 618 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor); 619 } 620 } 621 622 td->num_received++; 623 } 624 625 /* 626 * this function is called when a whole packet has been received and processed, 627 * so that it can decide what to send to the input layer. 628 */ 629 static void mt_sync_frame(struct mt_device *td, struct input_dev *input) 630 { 631 input_mt_sync_frame(input); 632 input_sync(input); 633 td->num_received = 0; 634 } 635 636 static int mt_touch_event(struct hid_device *hid, struct hid_field *field, 637 struct hid_usage *usage, __s32 value) 638 { 639 /* we will handle the hidinput part later, now remains hiddev */ 640 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event) 641 hid->hiddev_hid_event(hid, field, usage, value); 642 643 return 1; 644 } 645 646 static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field, 647 struct hid_usage *usage, __s32 value) 648 { 649 struct mt_device *td = hid_get_drvdata(hid); 650 __s32 quirks = td->mtclass.quirks; 651 struct input_dev *input = field->hidinput->input; 652 653 if (hid->claimed & HID_CLAIMED_INPUT) { 654 switch (usage->hid) { 655 case HID_DG_INRANGE: 656 if (quirks & MT_QUIRK_VALID_IS_INRANGE) 657 td->curvalid = value; 658 if (quirks & MT_QUIRK_HOVERING) 659 td->curdata.inrange_state = value; 660 break; 661 case HID_DG_TIPSWITCH: 662 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) 663 td->curvalid = value; 664 td->curdata.touch_state = value; 665 break; 666 case HID_DG_CONFIDENCE: 667 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE) 668 td->curvalid = value; 669 break; 670 case HID_DG_CONTACTID: 671 td->curdata.contactid = value; 672 break; 673 case HID_DG_TIPPRESSURE: 674 td->curdata.p = value; 675 break; 676 case HID_GD_X: 677 if (usage->code == ABS_MT_TOOL_X) 678 td->curdata.cx = value; 679 else 680 td->curdata.x = value; 681 break; 682 case HID_GD_Y: 683 if (usage->code == ABS_MT_TOOL_Y) 684 td->curdata.cy = value; 685 else 686 td->curdata.y = value; 687 break; 688 case HID_DG_WIDTH: 689 td->curdata.w = value; 690 break; 691 case HID_DG_HEIGHT: 692 td->curdata.h = value; 693 break; 694 case HID_DG_CONTACTCOUNT: 695 break; 696 case HID_DG_TOUCH: 697 /* do nothing */ 698 break; 699 700 default: 701 if (usage->type) 702 input_event(input, usage->type, usage->code, 703 value); 704 return; 705 } 706 707 if (usage->usage_index + 1 == field->report_count) { 708 /* we only take into account the last report. */ 709 if (usage->hid == td->last_slot_field) 710 mt_complete_slot(td, field->hidinput->input); 711 } 712 713 } 714 } 715 716 static void mt_touch_report(struct hid_device *hid, struct hid_report *report) 717 { 718 struct mt_device *td = hid_get_drvdata(hid); 719 struct hid_field *field; 720 unsigned count; 721 int r, n; 722 723 /* 724 * Includes multi-packet support where subsequent 725 * packets are sent with zero contactcount. 726 */ 727 if (td->cc_index >= 0) { 728 struct hid_field *field = report->field[td->cc_index]; 729 int value = field->value[td->cc_value_index]; 730 if (value) 731 td->num_expected = value; 732 } 733 734 for (r = 0; r < report->maxfield; r++) { 735 field = report->field[r]; 736 count = field->report_count; 737 738 if (!(HID_MAIN_ITEM_VARIABLE & field->flags)) 739 continue; 740 741 for (n = 0; n < count; n++) 742 mt_process_mt_event(hid, field, &field->usage[n], 743 field->value[n]); 744 } 745 746 if (td->num_received >= td->num_expected) 747 mt_sync_frame(td, report->field[0]->hidinput->input); 748 } 749 750 static void mt_touch_input_configured(struct hid_device *hdev, 751 struct hid_input *hi) 752 { 753 struct mt_device *td = hid_get_drvdata(hdev); 754 struct mt_class *cls = &td->mtclass; 755 struct input_dev *input = hi->input; 756 757 if (!td->maxcontacts) 758 td->maxcontacts = MT_DEFAULT_MAXCONTACT; 759 760 mt_post_parse(td); 761 if (td->serial_maybe) 762 mt_post_parse_default_settings(td); 763 764 if (cls->is_indirect) 765 td->mt_flags |= INPUT_MT_POINTER; 766 767 if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) 768 td->mt_flags |= INPUT_MT_DROP_UNUSED; 769 770 input_mt_init_slots(input, td->maxcontacts, td->mt_flags); 771 772 td->mt_flags = 0; 773 } 774 775 static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi, 776 struct hid_field *field, struct hid_usage *usage, 777 unsigned long **bit, int *max) 778 { 779 /* Only map fields from TouchScreen or TouchPad collections. 780 * We need to ignore fields that belong to other collections 781 * such as Mouse that might have the same GenericDesktop usages. */ 782 if (field->application != HID_DG_TOUCHSCREEN && 783 field->application != HID_DG_PEN && 784 field->application != HID_DG_TOUCHPAD) 785 return -1; 786 787 if (field->physical == HID_DG_STYLUS) 788 return mt_pen_input_mapping(hdev, hi, field, usage, bit, max); 789 790 return mt_touch_input_mapping(hdev, hi, field, usage, bit, max); 791 } 792 793 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi, 794 struct hid_field *field, struct hid_usage *usage, 795 unsigned long **bit, int *max) 796 { 797 if (field->physical == HID_DG_STYLUS) 798 return mt_pen_input_mapped(hdev, hi, field, usage, bit, max); 799 800 return mt_touch_input_mapped(hdev, hi, field, usage, bit, max); 801 } 802 803 static int mt_event(struct hid_device *hid, struct hid_field *field, 804 struct hid_usage *usage, __s32 value) 805 { 806 struct mt_device *td = hid_get_drvdata(hid); 807 808 if (field->report->id == td->mt_report_id) 809 return mt_touch_event(hid, field, usage, value); 810 811 if (field->report->id == td->pen_report_id) 812 return mt_pen_event(hid, field, usage, value); 813 814 /* ignore other reports */ 815 return 1; 816 } 817 818 static void mt_report(struct hid_device *hid, struct hid_report *report) 819 { 820 struct mt_device *td = hid_get_drvdata(hid); 821 822 if (!(hid->claimed & HID_CLAIMED_INPUT)) 823 return; 824 825 if (report->id == td->mt_report_id) 826 mt_touch_report(hid, report); 827 828 if (report->id == td->pen_report_id) 829 mt_pen_report(hid, report); 830 } 831 832 static void mt_set_input_mode(struct hid_device *hdev) 833 { 834 struct mt_device *td = hid_get_drvdata(hdev); 835 struct hid_report *r; 836 struct hid_report_enum *re; 837 838 if (td->inputmode < 0) 839 return; 840 841 re = &(hdev->report_enum[HID_FEATURE_REPORT]); 842 r = re->report_id_hash[td->inputmode]; 843 if (r) { 844 r->field[0]->value[td->inputmode_index] = 0x02; 845 hid_hw_request(hdev, r, HID_REQ_SET_REPORT); 846 } 847 } 848 849 static void mt_set_maxcontacts(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 int fieldmax, max; 855 856 if (td->maxcontact_report_id < 0) 857 return; 858 859 if (!td->mtclass.maxcontacts) 860 return; 861 862 re = &hdev->report_enum[HID_FEATURE_REPORT]; 863 r = re->report_id_hash[td->maxcontact_report_id]; 864 if (r) { 865 max = td->mtclass.maxcontacts; 866 fieldmax = r->field[0]->logical_maximum; 867 max = min(fieldmax, max); 868 if (r->field[0]->value[0] != max) { 869 r->field[0]->value[0] = max; 870 hid_hw_request(hdev, r, HID_REQ_SET_REPORT); 871 } 872 } 873 } 874 875 static void mt_post_parse_default_settings(struct mt_device *td) 876 { 877 __s32 quirks = td->mtclass.quirks; 878 879 /* unknown serial device needs special quirks */ 880 if (td->touches_by_report == 1) { 881 quirks |= MT_QUIRK_ALWAYS_VALID; 882 quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP; 883 quirks &= ~MT_QUIRK_VALID_IS_INRANGE; 884 quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE; 885 quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; 886 } 887 888 td->mtclass.quirks = quirks; 889 } 890 891 static void mt_post_parse(struct mt_device *td) 892 { 893 struct mt_fields *f = td->fields; 894 struct mt_class *cls = &td->mtclass; 895 896 if (td->touches_by_report > 0) { 897 int field_count_per_touch = f->length / td->touches_by_report; 898 td->last_slot_field = f->usages[field_count_per_touch - 1]; 899 } 900 901 if (td->cc_index < 0) 902 cls->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; 903 } 904 905 static void mt_input_configured(struct hid_device *hdev, struct hid_input *hi) 906 { 907 struct mt_device *td = hid_get_drvdata(hdev); 908 char *name; 909 const char *suffix = NULL; 910 911 if (hi->report->id == td->mt_report_id) 912 mt_touch_input_configured(hdev, hi); 913 914 if (hi->report->field[0]->physical == HID_DG_STYLUS) { 915 suffix = "Pen"; 916 mt_pen_input_configured(hdev, hi); 917 } 918 919 if (suffix) { 920 name = devm_kzalloc(&hi->input->dev, 921 strlen(hdev->name) + strlen(suffix) + 2, 922 GFP_KERNEL); 923 if (name) { 924 sprintf(name, "%s %s", hdev->name, suffix); 925 hi->input->name = name; 926 } 927 } 928 } 929 930 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) 931 { 932 int ret, i; 933 struct mt_device *td; 934 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */ 935 936 for (i = 0; mt_classes[i].name ; i++) { 937 if (id->driver_data == mt_classes[i].name) { 938 mtclass = &(mt_classes[i]); 939 break; 940 } 941 } 942 943 /* This allows the driver to correctly support devices 944 * that emit events over several HID messages. 945 */ 946 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC; 947 948 /* 949 * This allows the driver to handle different input sensors 950 * that emits events through different reports on the same HID 951 * device. 952 */ 953 hdev->quirks |= HID_QUIRK_MULTI_INPUT; 954 hdev->quirks |= HID_QUIRK_NO_EMPTY_INPUT; 955 956 /* 957 * Handle special quirks for Windows 8 certified devices. 958 */ 959 if (id->group == HID_GROUP_MULTITOUCH_WIN_8) 960 /* 961 * Some multitouch screens do not like to be polled for input 962 * reports. Fortunately, the Win8 spec says that all touches 963 * should be sent during each report, making the initialization 964 * of input reports unnecessary. 965 */ 966 hdev->quirks |= HID_QUIRK_NO_INIT_INPUT_REPORTS; 967 968 td = devm_kzalloc(&hdev->dev, sizeof(struct mt_device), GFP_KERNEL); 969 if (!td) { 970 dev_err(&hdev->dev, "cannot allocate multitouch data\n"); 971 return -ENOMEM; 972 } 973 td->mtclass = *mtclass; 974 td->inputmode = -1; 975 td->maxcontact_report_id = -1; 976 td->cc_index = -1; 977 td->mt_report_id = -1; 978 td->pen_report_id = -1; 979 hid_set_drvdata(hdev, td); 980 981 td->fields = devm_kzalloc(&hdev->dev, sizeof(struct mt_fields), 982 GFP_KERNEL); 983 if (!td->fields) { 984 dev_err(&hdev->dev, "cannot allocate multitouch fields data\n"); 985 return -ENOMEM; 986 } 987 988 if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID) 989 td->serial_maybe = true; 990 991 ret = hid_parse(hdev); 992 if (ret != 0) 993 return ret; 994 995 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); 996 if (ret) 997 return ret; 998 999 ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group); 1000 1001 mt_set_maxcontacts(hdev); 1002 mt_set_input_mode(hdev); 1003 1004 /* release .fields memory as it is not used anymore */ 1005 devm_kfree(&hdev->dev, td->fields); 1006 td->fields = NULL; 1007 1008 return 0; 1009 } 1010 1011 #ifdef CONFIG_PM 1012 static int mt_reset_resume(struct hid_device *hdev) 1013 { 1014 mt_set_maxcontacts(hdev); 1015 mt_set_input_mode(hdev); 1016 return 0; 1017 } 1018 1019 static int mt_resume(struct hid_device *hdev) 1020 { 1021 /* Some Elan legacy devices require SET_IDLE to be set on resume. 1022 * It should be safe to send it to other devices too. 1023 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */ 1024 1025 hid_hw_idle(hdev, 0, 0, HID_REQ_SET_IDLE); 1026 1027 return 0; 1028 } 1029 #endif 1030 1031 static void mt_remove(struct hid_device *hdev) 1032 { 1033 sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group); 1034 hid_hw_stop(hdev); 1035 } 1036 1037 static const struct hid_device_id mt_devices[] = { 1038 1039 /* 3M panels */ 1040 { .driver_data = MT_CLS_3M, 1041 MT_USB_DEVICE(USB_VENDOR_ID_3M, 1042 USB_DEVICE_ID_3M1968) }, 1043 { .driver_data = MT_CLS_3M, 1044 MT_USB_DEVICE(USB_VENDOR_ID_3M, 1045 USB_DEVICE_ID_3M2256) }, 1046 { .driver_data = MT_CLS_3M, 1047 MT_USB_DEVICE(USB_VENDOR_ID_3M, 1048 USB_DEVICE_ID_3M3266) }, 1049 1050 /* ActionStar panels */ 1051 { .driver_data = MT_CLS_NSMU, 1052 MT_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR, 1053 USB_DEVICE_ID_ACTIONSTAR_1011) }, 1054 1055 /* Atmel panels */ 1056 { .driver_data = MT_CLS_SERIAL, 1057 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL, 1058 USB_DEVICE_ID_ATMEL_MULTITOUCH) }, 1059 { .driver_data = MT_CLS_SERIAL, 1060 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL, 1061 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) }, 1062 1063 /* Baanto multitouch devices */ 1064 { .driver_data = MT_CLS_NSMU, 1065 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO, 1066 USB_DEVICE_ID_BAANTO_MT_190W2) }, 1067 /* Cando panels */ 1068 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 1069 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1070 USB_DEVICE_ID_CANDO_MULTI_TOUCH) }, 1071 { .driver_data = MT_CLS_DUAL_CONTACT_NUMBER, 1072 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1073 USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) }, 1074 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 1075 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1076 USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) }, 1077 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 1078 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1079 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) }, 1080 1081 /* Chunghwa Telecom touch panels */ 1082 { .driver_data = MT_CLS_NSMU, 1083 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT, 1084 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) }, 1085 1086 /* CVTouch panels */ 1087 { .driver_data = MT_CLS_NSMU, 1088 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH, 1089 USB_DEVICE_ID_CVTOUCH_SCREEN) }, 1090 1091 /* Cypress panel */ 1092 { .driver_data = MT_CLS_CYPRESS, 1093 HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, 1094 USB_DEVICE_ID_CYPRESS_TRUETOUCH) }, 1095 1096 /* Data Modul easyMaxTouch */ 1097 { .driver_data = MT_CLS_DEFAULT, 1098 MT_USB_DEVICE(USB_VENDOR_ID_DATA_MODUL, 1099 USB_VENDOR_ID_DATA_MODUL_EASYMAXTOUCH) }, 1100 1101 /* eGalax devices (resistive) */ 1102 { .driver_data = MT_CLS_EGALAX, 1103 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1104 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) }, 1105 { .driver_data = MT_CLS_EGALAX, 1106 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1107 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) }, 1108 1109 /* eGalax devices (capacitive) */ 1110 { .driver_data = MT_CLS_EGALAX_SERIAL, 1111 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1112 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) }, 1113 { .driver_data = MT_CLS_EGALAX, 1114 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1115 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) }, 1116 { .driver_data = MT_CLS_EGALAX_SERIAL, 1117 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1118 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) }, 1119 { .driver_data = MT_CLS_EGALAX_SERIAL, 1120 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1121 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) }, 1122 { .driver_data = MT_CLS_EGALAX_SERIAL, 1123 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1124 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) }, 1125 { .driver_data = MT_CLS_EGALAX_SERIAL, 1126 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1127 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) }, 1128 { .driver_data = MT_CLS_EGALAX, 1129 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1130 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) }, 1131 { .driver_data = MT_CLS_EGALAX, 1132 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1133 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) }, 1134 { .driver_data = MT_CLS_EGALAX_SERIAL, 1135 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1136 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) }, 1137 { .driver_data = MT_CLS_EGALAX, 1138 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 1139 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) }, 1140 { .driver_data = MT_CLS_EGALAX, 1141 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 1142 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) }, 1143 { .driver_data = MT_CLS_EGALAX, 1144 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1145 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) }, 1146 { .driver_data = MT_CLS_EGALAX, 1147 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1148 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) }, 1149 { .driver_data = MT_CLS_EGALAX_SERIAL, 1150 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1151 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) }, 1152 { .driver_data = MT_CLS_EGALAX_SERIAL, 1153 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1154 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) }, 1155 { .driver_data = MT_CLS_EGALAX_SERIAL, 1156 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1157 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) }, 1158 1159 /* Elo TouchSystems IntelliTouch Plus panel */ 1160 { .driver_data = MT_CLS_DUAL_CONTACT_ID, 1161 MT_USB_DEVICE(USB_VENDOR_ID_ELO, 1162 USB_DEVICE_ID_ELO_TS2515) }, 1163 1164 /* Flatfrog Panels */ 1165 { .driver_data = MT_CLS_FLATFROG, 1166 MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG, 1167 USB_DEVICE_ID_MULTITOUCH_3200) }, 1168 1169 /* GeneralTouch panel */ 1170 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS, 1171 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1172 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) }, 1173 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1174 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1175 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) }, 1176 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS, 1177 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1178 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0101) }, 1179 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1180 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1181 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0102) }, 1182 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1183 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1184 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0106) }, 1185 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1186 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1187 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A) }, 1188 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1189 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1190 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100) }, 1191 1192 /* Gametel game controller */ 1193 { .driver_data = MT_CLS_NSMU, 1194 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL, 1195 USB_DEVICE_ID_GAMETEL_MT_MODE) }, 1196 1197 /* GoodTouch panels */ 1198 { .driver_data = MT_CLS_NSMU, 1199 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH, 1200 USB_DEVICE_ID_GOODTOUCH_000f) }, 1201 1202 /* Hanvon panels */ 1203 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 1204 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT, 1205 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) }, 1206 1207 /* Ideacom panel */ 1208 { .driver_data = MT_CLS_SERIAL, 1209 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM, 1210 USB_DEVICE_ID_IDEACOM_IDC6650) }, 1211 { .driver_data = MT_CLS_SERIAL, 1212 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM, 1213 USB_DEVICE_ID_IDEACOM_IDC6651) }, 1214 1215 /* Ilitek dual touch panel */ 1216 { .driver_data = MT_CLS_NSMU, 1217 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK, 1218 USB_DEVICE_ID_ILITEK_MULTITOUCH) }, 1219 1220 /* IRTOUCH panels */ 1221 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 1222 MT_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS, 1223 USB_DEVICE_ID_IRTOUCH_INFRARED_USB) }, 1224 1225 /* LG Display panels */ 1226 { .driver_data = MT_CLS_DEFAULT, 1227 MT_USB_DEVICE(USB_VENDOR_ID_LG, 1228 USB_DEVICE_ID_LG_MULTITOUCH) }, 1229 1230 /* Lumio panels */ 1231 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1232 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO, 1233 USB_DEVICE_ID_CRYSTALTOUCH) }, 1234 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1235 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO, 1236 USB_DEVICE_ID_CRYSTALTOUCH_DUAL) }, 1237 1238 /* MosArt panels */ 1239 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1240 MT_USB_DEVICE(USB_VENDOR_ID_ASUS, 1241 USB_DEVICE_ID_ASUS_T91MT)}, 1242 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1243 MT_USB_DEVICE(USB_VENDOR_ID_ASUS, 1244 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) }, 1245 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1246 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX, 1247 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) }, 1248 1249 /* Nexio panels */ 1250 { .driver_data = MT_CLS_DEFAULT, 1251 MT_USB_DEVICE(USB_VENDOR_ID_NEXIO, 1252 USB_DEVICE_ID_NEXIO_MULTITOUCH_420)}, 1253 1254 /* Panasonic panels */ 1255 { .driver_data = MT_CLS_PANASONIC, 1256 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC, 1257 USB_DEVICE_ID_PANABOARD_UBT780) }, 1258 { .driver_data = MT_CLS_PANASONIC, 1259 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC, 1260 USB_DEVICE_ID_PANABOARD_UBT880) }, 1261 1262 /* Novatek Panel */ 1263 { .driver_data = MT_CLS_NSMU, 1264 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK, 1265 USB_DEVICE_ID_NOVATEK_PCT) }, 1266 1267 /* PenMount panels */ 1268 { .driver_data = MT_CLS_CONFIDENCE, 1269 MT_USB_DEVICE(USB_VENDOR_ID_PENMOUNT, 1270 USB_DEVICE_ID_PENMOUNT_PCI) }, 1271 1272 /* PixArt optical touch screen */ 1273 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1274 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1275 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) }, 1276 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1277 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1278 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) }, 1279 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1280 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1281 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) }, 1282 1283 /* PixCir-based panels */ 1284 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 1285 MT_USB_DEVICE(USB_VENDOR_ID_HANVON, 1286 USB_DEVICE_ID_HANVON_MULTITOUCH) }, 1287 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 1288 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1289 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) }, 1290 1291 /* Quanta-based panels */ 1292 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID, 1293 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA, 1294 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) }, 1295 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID, 1296 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA, 1297 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) }, 1298 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID, 1299 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA, 1300 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008) }, 1301 1302 /* SiS panels */ 1303 { .driver_data = MT_CLS_DEFAULT, 1304 HID_USB_DEVICE(USB_VENDOR_ID_SIS_TOUCH, 1305 USB_DEVICE_ID_SIS9200_TOUCH) }, 1306 { .driver_data = MT_CLS_DEFAULT, 1307 HID_USB_DEVICE(USB_VENDOR_ID_SIS_TOUCH, 1308 USB_DEVICE_ID_SIS817_TOUCH) }, 1309 { .driver_data = MT_CLS_DEFAULT, 1310 HID_USB_DEVICE(USB_VENDOR_ID_SIS_TOUCH, 1311 USB_DEVICE_ID_SIS1030_TOUCH) }, 1312 1313 /* Stantum panels */ 1314 { .driver_data = MT_CLS_CONFIDENCE, 1315 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM, 1316 USB_DEVICE_ID_MTP)}, 1317 { .driver_data = MT_CLS_CONFIDENCE, 1318 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, 1319 USB_DEVICE_ID_MTP_STM)}, 1320 { .driver_data = MT_CLS_DEFAULT, 1321 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX, 1322 USB_DEVICE_ID_MTP_SITRONIX)}, 1323 1324 /* TopSeed panels */ 1325 { .driver_data = MT_CLS_TOPSEED, 1326 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, 1327 USB_DEVICE_ID_TOPSEED2_PERIPAD_701) }, 1328 1329 /* Touch International panels */ 1330 { .driver_data = MT_CLS_NSMU, 1331 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL, 1332 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) }, 1333 1334 /* Unitec panels */ 1335 { .driver_data = MT_CLS_NSMU, 1336 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC, 1337 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) }, 1338 { .driver_data = MT_CLS_NSMU, 1339 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC, 1340 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) }, 1341 1342 /* Wistron panels */ 1343 { .driver_data = MT_CLS_NSMU, 1344 MT_USB_DEVICE(USB_VENDOR_ID_WISTRON, 1345 USB_DEVICE_ID_WISTRON_OPTICAL_TOUCH) }, 1346 1347 /* XAT */ 1348 { .driver_data = MT_CLS_NSMU, 1349 MT_USB_DEVICE(USB_VENDOR_ID_XAT, 1350 USB_DEVICE_ID_XAT_CSR) }, 1351 1352 /* Xiroku */ 1353 { .driver_data = MT_CLS_NSMU, 1354 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1355 USB_DEVICE_ID_XIROKU_SPX) }, 1356 { .driver_data = MT_CLS_NSMU, 1357 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1358 USB_DEVICE_ID_XIROKU_MPX) }, 1359 { .driver_data = MT_CLS_NSMU, 1360 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1361 USB_DEVICE_ID_XIROKU_CSR) }, 1362 { .driver_data = MT_CLS_NSMU, 1363 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1364 USB_DEVICE_ID_XIROKU_SPX1) }, 1365 { .driver_data = MT_CLS_NSMU, 1366 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1367 USB_DEVICE_ID_XIROKU_MPX1) }, 1368 { .driver_data = MT_CLS_NSMU, 1369 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1370 USB_DEVICE_ID_XIROKU_CSR1) }, 1371 { .driver_data = MT_CLS_NSMU, 1372 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1373 USB_DEVICE_ID_XIROKU_SPX2) }, 1374 { .driver_data = MT_CLS_NSMU, 1375 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1376 USB_DEVICE_ID_XIROKU_MPX2) }, 1377 { .driver_data = MT_CLS_NSMU, 1378 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1379 USB_DEVICE_ID_XIROKU_CSR2) }, 1380 1381 /* Zytronic panels */ 1382 { .driver_data = MT_CLS_SERIAL, 1383 MT_USB_DEVICE(USB_VENDOR_ID_ZYTRONIC, 1384 USB_DEVICE_ID_ZYTRONIC_ZXY100) }, 1385 1386 /* Generic MT device */ 1387 { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) }, 1388 1389 /* Generic Win 8 certified MT device */ 1390 { .driver_data = MT_CLS_WIN_8, 1391 HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH_WIN_8, 1392 HID_ANY_ID, HID_ANY_ID) }, 1393 { } 1394 }; 1395 MODULE_DEVICE_TABLE(hid, mt_devices); 1396 1397 static const struct hid_usage_id mt_grabbed_usages[] = { 1398 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID }, 1399 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1} 1400 }; 1401 1402 static struct hid_driver mt_driver = { 1403 .name = "hid-multitouch", 1404 .id_table = mt_devices, 1405 .probe = mt_probe, 1406 .remove = mt_remove, 1407 .input_mapping = mt_input_mapping, 1408 .input_mapped = mt_input_mapped, 1409 .input_configured = mt_input_configured, 1410 .feature_mapping = mt_feature_mapping, 1411 .usage_table = mt_grabbed_usages, 1412 .event = mt_event, 1413 .report = mt_report, 1414 #ifdef CONFIG_PM 1415 .reset_resume = mt_reset_resume, 1416 .resume = mt_resume, 1417 #endif 1418 }; 1419 module_hid_driver(mt_driver); 1420