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 __s8 inputmode; /* InputMode HID feature, -1 if non-existent */ 105 __s8 inputmode_index; /* InputMode HID feature index in the report */ 106 __s8 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_CONTACTNUMBER, 254 .maxcontacts = 2 255 }, 256 { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 257 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 258 MT_QUIRK_SLOT_IS_CONTACTNUMBER 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 int i; 316 317 switch (usage->hid) { 318 case HID_DG_INPUTMODE: 319 td->inputmode = field->report->id; 320 td->inputmode_index = 0; /* has to be updated below */ 321 322 for (i=0; i < field->maxusage; i++) { 323 if (field->usage[i].hid == usage->hid) { 324 td->inputmode_index = i; 325 break; 326 } 327 } 328 329 break; 330 case HID_DG_CONTACTMAX: 331 td->maxcontact_report_id = field->report->id; 332 td->maxcontacts = field->value[0]; 333 if (!td->maxcontacts && 334 field->logical_maximum <= MT_MAX_MAXCONTACT) 335 td->maxcontacts = field->logical_maximum; 336 if (td->mtclass.maxcontacts) 337 /* check if the maxcontacts is given by the class */ 338 td->maxcontacts = td->mtclass.maxcontacts; 339 340 break; 341 } 342 } 343 344 static void set_abs(struct input_dev *input, unsigned int code, 345 struct hid_field *field, int snratio) 346 { 347 int fmin = field->logical_minimum; 348 int fmax = field->logical_maximum; 349 int fuzz = snratio ? (fmax - fmin) / snratio : 0; 350 input_set_abs_params(input, code, fmin, fmax, fuzz, 0); 351 input_abs_set_res(input, code, hidinput_calc_abs_res(field, code)); 352 } 353 354 static void mt_store_field(struct hid_usage *usage, struct mt_device *td, 355 struct hid_input *hi) 356 { 357 struct mt_fields *f = td->fields; 358 359 if (f->length >= HID_MAX_FIELDS) 360 return; 361 362 f->usages[f->length++] = usage->hid; 363 } 364 365 static int mt_pen_input_mapping(struct hid_device *hdev, struct hid_input *hi, 366 struct hid_field *field, struct hid_usage *usage, 367 unsigned long **bit, int *max) 368 { 369 struct mt_device *td = hid_get_drvdata(hdev); 370 371 td->pen_report_id = field->report->id; 372 373 return 0; 374 } 375 376 static int mt_pen_input_mapped(struct hid_device *hdev, struct hid_input *hi, 377 struct hid_field *field, struct hid_usage *usage, 378 unsigned long **bit, int *max) 379 { 380 return 0; 381 } 382 383 static int mt_pen_event(struct hid_device *hid, struct hid_field *field, 384 struct hid_usage *usage, __s32 value) 385 { 386 /* let hid-input handle it */ 387 return 0; 388 } 389 390 static void mt_pen_report(struct hid_device *hid, struct hid_report *report) 391 { 392 struct hid_field *field = report->field[0]; 393 394 input_sync(field->hidinput->input); 395 } 396 397 static void mt_pen_input_configured(struct hid_device *hdev, 398 struct hid_input *hi) 399 { 400 /* force BTN_STYLUS to allow tablet matching in udev */ 401 __set_bit(BTN_STYLUS, hi->input->keybit); 402 } 403 404 static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi, 405 struct hid_field *field, struct hid_usage *usage, 406 unsigned long **bit, int *max) 407 { 408 struct mt_device *td = hid_get_drvdata(hdev); 409 struct mt_class *cls = &td->mtclass; 410 int code; 411 struct hid_usage *prev_usage = NULL; 412 413 if (field->application == HID_DG_TOUCHSCREEN) 414 td->mt_flags |= INPUT_MT_DIRECT; 415 416 /* 417 * Model touchscreens providing buttons as touchpads. 418 */ 419 if (field->application == HID_DG_TOUCHPAD || 420 (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) 421 td->mt_flags |= INPUT_MT_POINTER; 422 423 if (usage->usage_index) 424 prev_usage = &field->usage[usage->usage_index - 1]; 425 426 switch (usage->hid & HID_USAGE_PAGE) { 427 428 case HID_UP_GENDESK: 429 switch (usage->hid) { 430 case HID_GD_X: 431 if (prev_usage && (prev_usage->hid == usage->hid)) { 432 hid_map_usage(hi, usage, bit, max, 433 EV_ABS, ABS_MT_TOOL_X); 434 set_abs(hi->input, ABS_MT_TOOL_X, field, 435 cls->sn_move); 436 } else { 437 hid_map_usage(hi, usage, bit, max, 438 EV_ABS, ABS_MT_POSITION_X); 439 set_abs(hi->input, ABS_MT_POSITION_X, field, 440 cls->sn_move); 441 } 442 443 mt_store_field(usage, td, hi); 444 return 1; 445 case HID_GD_Y: 446 if (prev_usage && (prev_usage->hid == usage->hid)) { 447 hid_map_usage(hi, usage, bit, max, 448 EV_ABS, ABS_MT_TOOL_Y); 449 set_abs(hi->input, ABS_MT_TOOL_Y, field, 450 cls->sn_move); 451 } else { 452 hid_map_usage(hi, usage, bit, max, 453 EV_ABS, ABS_MT_POSITION_Y); 454 set_abs(hi->input, ABS_MT_POSITION_Y, field, 455 cls->sn_move); 456 } 457 458 mt_store_field(usage, td, hi); 459 return 1; 460 } 461 return 0; 462 463 case HID_UP_DIGITIZER: 464 switch (usage->hid) { 465 case HID_DG_INRANGE: 466 if (cls->quirks & MT_QUIRK_HOVERING) { 467 hid_map_usage(hi, usage, bit, max, 468 EV_ABS, ABS_MT_DISTANCE); 469 input_set_abs_params(hi->input, 470 ABS_MT_DISTANCE, 0, 1, 0, 0); 471 } 472 mt_store_field(usage, td, hi); 473 return 1; 474 case HID_DG_CONFIDENCE: 475 mt_store_field(usage, td, hi); 476 return 1; 477 case HID_DG_TIPSWITCH: 478 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH); 479 input_set_capability(hi->input, EV_KEY, BTN_TOUCH); 480 mt_store_field(usage, td, hi); 481 return 1; 482 case HID_DG_CONTACTID: 483 mt_store_field(usage, td, hi); 484 td->touches_by_report++; 485 td->mt_report_id = field->report->id; 486 return 1; 487 case HID_DG_WIDTH: 488 hid_map_usage(hi, usage, bit, max, 489 EV_ABS, ABS_MT_TOUCH_MAJOR); 490 if (!(cls->quirks & MT_QUIRK_NO_AREA)) 491 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field, 492 cls->sn_width); 493 mt_store_field(usage, td, hi); 494 return 1; 495 case HID_DG_HEIGHT: 496 hid_map_usage(hi, usage, bit, max, 497 EV_ABS, ABS_MT_TOUCH_MINOR); 498 if (!(cls->quirks & MT_QUIRK_NO_AREA)) { 499 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field, 500 cls->sn_height); 501 input_set_abs_params(hi->input, 502 ABS_MT_ORIENTATION, 0, 1, 0, 0); 503 } 504 mt_store_field(usage, td, hi); 505 return 1; 506 case HID_DG_TIPPRESSURE: 507 hid_map_usage(hi, usage, bit, max, 508 EV_ABS, ABS_MT_PRESSURE); 509 set_abs(hi->input, ABS_MT_PRESSURE, field, 510 cls->sn_pressure); 511 mt_store_field(usage, td, hi); 512 return 1; 513 case HID_DG_CONTACTCOUNT: 514 td->cc_index = field->index; 515 td->cc_value_index = usage->usage_index; 516 return 1; 517 case HID_DG_CONTACTMAX: 518 /* we don't set td->last_slot_field as contactcount and 519 * contact max are global to the report */ 520 return -1; 521 case HID_DG_TOUCH: 522 /* Legacy devices use TIPSWITCH and not TOUCH. 523 * Let's just ignore this field. */ 524 return -1; 525 } 526 /* let hid-input decide for the others */ 527 return 0; 528 529 case HID_UP_BUTTON: 530 code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE); 531 hid_map_usage(hi, usage, bit, max, EV_KEY, code); 532 input_set_capability(hi->input, EV_KEY, code); 533 return 1; 534 535 case 0xff000000: 536 /* we do not want to map these: no input-oriented meaning */ 537 return -1; 538 } 539 540 return 0; 541 } 542 543 static int mt_touch_input_mapped(struct hid_device *hdev, struct hid_input *hi, 544 struct hid_field *field, struct hid_usage *usage, 545 unsigned long **bit, int *max) 546 { 547 if (usage->type == EV_KEY || usage->type == EV_ABS) 548 set_bit(usage->type, hi->input->evbit); 549 550 return -1; 551 } 552 553 static int mt_compute_slot(struct mt_device *td, struct input_dev *input) 554 { 555 __s32 quirks = td->mtclass.quirks; 556 557 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID) 558 return td->curdata.contactid; 559 560 if (quirks & MT_QUIRK_CYPRESS) 561 return cypress_compute_slot(td); 562 563 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER) 564 return td->num_received; 565 566 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE) 567 return td->curdata.contactid - 1; 568 569 return input_mt_get_slot_by_key(input, td->curdata.contactid); 570 } 571 572 /* 573 * this function is called when a whole contact has been processed, 574 * so that it can assign it to a slot and store the data there 575 */ 576 static void mt_complete_slot(struct mt_device *td, struct input_dev *input) 577 { 578 if ((td->mtclass.quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) && 579 td->num_received >= td->num_expected) 580 return; 581 582 if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) { 583 int slotnum = mt_compute_slot(td, input); 584 struct mt_slot *s = &td->curdata; 585 struct input_mt *mt = input->mt; 586 587 if (slotnum < 0 || slotnum >= td->maxcontacts) 588 return; 589 590 if ((td->mtclass.quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) { 591 struct input_mt_slot *slot = &mt->slots[slotnum]; 592 if (input_mt_is_active(slot) && 593 input_mt_is_used(mt, slot)) 594 return; 595 } 596 597 input_mt_slot(input, slotnum); 598 input_mt_report_slot_state(input, MT_TOOL_FINGER, 599 s->touch_state || s->inrange_state); 600 if (s->touch_state || s->inrange_state) { 601 /* this finger is in proximity of the sensor */ 602 int wide = (s->w > s->h); 603 /* divided by two to match visual scale of touch */ 604 int major = max(s->w, s->h) >> 1; 605 int minor = min(s->w, s->h) >> 1; 606 607 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x); 608 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y); 609 input_event(input, EV_ABS, ABS_MT_TOOL_X, s->cx); 610 input_event(input, EV_ABS, ABS_MT_TOOL_Y, s->cy); 611 input_event(input, EV_ABS, ABS_MT_DISTANCE, 612 !s->touch_state); 613 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide); 614 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p); 615 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major); 616 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor); 617 } 618 } 619 620 td->num_received++; 621 } 622 623 /* 624 * this function is called when a whole packet has been received and processed, 625 * so that it can decide what to send to the input layer. 626 */ 627 static void mt_sync_frame(struct mt_device *td, struct input_dev *input) 628 { 629 input_mt_sync_frame(input); 630 input_sync(input); 631 td->num_received = 0; 632 } 633 634 static int mt_touch_event(struct hid_device *hid, struct hid_field *field, 635 struct hid_usage *usage, __s32 value) 636 { 637 /* we will handle the hidinput part later, now remains hiddev */ 638 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event) 639 hid->hiddev_hid_event(hid, field, usage, value); 640 641 return 1; 642 } 643 644 static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field, 645 struct hid_usage *usage, __s32 value) 646 { 647 struct mt_device *td = hid_get_drvdata(hid); 648 __s32 quirks = td->mtclass.quirks; 649 struct input_dev *input = field->hidinput->input; 650 651 if (hid->claimed & HID_CLAIMED_INPUT) { 652 switch (usage->hid) { 653 case HID_DG_INRANGE: 654 if (quirks & MT_QUIRK_VALID_IS_INRANGE) 655 td->curvalid = value; 656 if (quirks & MT_QUIRK_HOVERING) 657 td->curdata.inrange_state = value; 658 break; 659 case HID_DG_TIPSWITCH: 660 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) 661 td->curvalid = value; 662 td->curdata.touch_state = value; 663 break; 664 case HID_DG_CONFIDENCE: 665 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE) 666 td->curvalid = value; 667 break; 668 case HID_DG_CONTACTID: 669 td->curdata.contactid = value; 670 break; 671 case HID_DG_TIPPRESSURE: 672 td->curdata.p = value; 673 break; 674 case HID_GD_X: 675 if (usage->code == ABS_MT_TOOL_X) 676 td->curdata.cx = value; 677 else 678 td->curdata.x = value; 679 break; 680 case HID_GD_Y: 681 if (usage->code == ABS_MT_TOOL_Y) 682 td->curdata.cy = value; 683 else 684 td->curdata.y = value; 685 break; 686 case HID_DG_WIDTH: 687 td->curdata.w = value; 688 break; 689 case HID_DG_HEIGHT: 690 td->curdata.h = value; 691 break; 692 case HID_DG_CONTACTCOUNT: 693 break; 694 case HID_DG_TOUCH: 695 /* do nothing */ 696 break; 697 698 default: 699 if (usage->type) 700 input_event(input, usage->type, usage->code, 701 value); 702 return; 703 } 704 705 if (usage->usage_index + 1 == field->report_count) { 706 /* we only take into account the last report. */ 707 if (usage->hid == td->last_slot_field) 708 mt_complete_slot(td, field->hidinput->input); 709 } 710 711 } 712 } 713 714 static void mt_touch_report(struct hid_device *hid, struct hid_report *report) 715 { 716 struct mt_device *td = hid_get_drvdata(hid); 717 struct hid_field *field; 718 unsigned count; 719 int r, n; 720 721 /* 722 * Includes multi-packet support where subsequent 723 * packets are sent with zero contactcount. 724 */ 725 if (td->cc_index >= 0) { 726 struct hid_field *field = report->field[td->cc_index]; 727 int value = field->value[td->cc_value_index]; 728 if (value) 729 td->num_expected = value; 730 } 731 732 for (r = 0; r < report->maxfield; r++) { 733 field = report->field[r]; 734 count = field->report_count; 735 736 if (!(HID_MAIN_ITEM_VARIABLE & field->flags)) 737 continue; 738 739 for (n = 0; n < count; n++) 740 mt_process_mt_event(hid, field, &field->usage[n], 741 field->value[n]); 742 } 743 744 if (td->num_received >= td->num_expected) 745 mt_sync_frame(td, report->field[0]->hidinput->input); 746 } 747 748 static void mt_touch_input_configured(struct hid_device *hdev, 749 struct hid_input *hi) 750 { 751 struct mt_device *td = hid_get_drvdata(hdev); 752 struct mt_class *cls = &td->mtclass; 753 struct input_dev *input = hi->input; 754 755 if (!td->maxcontacts) 756 td->maxcontacts = MT_DEFAULT_MAXCONTACT; 757 758 mt_post_parse(td); 759 if (td->serial_maybe) 760 mt_post_parse_default_settings(td); 761 762 if (cls->is_indirect) 763 td->mt_flags |= INPUT_MT_POINTER; 764 765 if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) 766 td->mt_flags |= INPUT_MT_DROP_UNUSED; 767 768 input_mt_init_slots(input, td->maxcontacts, td->mt_flags); 769 770 td->mt_flags = 0; 771 } 772 773 static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi, 774 struct hid_field *field, struct hid_usage *usage, 775 unsigned long **bit, int *max) 776 { 777 /* Only map fields from TouchScreen or TouchPad collections. 778 * We need to ignore fields that belong to other collections 779 * such as Mouse that might have the same GenericDesktop usages. */ 780 if (field->application != HID_DG_TOUCHSCREEN && 781 field->application != HID_DG_PEN && 782 field->application != HID_DG_TOUCHPAD) 783 return -1; 784 785 if (field->physical == HID_DG_STYLUS) 786 return mt_pen_input_mapping(hdev, hi, field, usage, bit, max); 787 788 return mt_touch_input_mapping(hdev, hi, field, usage, bit, max); 789 } 790 791 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi, 792 struct hid_field *field, struct hid_usage *usage, 793 unsigned long **bit, int *max) 794 { 795 if (field->physical == HID_DG_STYLUS) 796 return mt_pen_input_mapped(hdev, hi, field, usage, bit, max); 797 798 return mt_touch_input_mapped(hdev, hi, field, usage, bit, max); 799 } 800 801 static int mt_event(struct hid_device *hid, struct hid_field *field, 802 struct hid_usage *usage, __s32 value) 803 { 804 struct mt_device *td = hid_get_drvdata(hid); 805 806 if (field->report->id == td->mt_report_id) 807 return mt_touch_event(hid, field, usage, value); 808 809 if (field->report->id == td->pen_report_id) 810 return mt_pen_event(hid, field, usage, value); 811 812 /* ignore other reports */ 813 return 1; 814 } 815 816 static void mt_report(struct hid_device *hid, struct hid_report *report) 817 { 818 struct mt_device *td = hid_get_drvdata(hid); 819 820 if (!(hid->claimed & HID_CLAIMED_INPUT)) 821 return; 822 823 if (report->id == td->mt_report_id) 824 mt_touch_report(hid, report); 825 826 if (report->id == td->pen_report_id) 827 mt_pen_report(hid, report); 828 } 829 830 static void mt_set_input_mode(struct hid_device *hdev) 831 { 832 struct mt_device *td = hid_get_drvdata(hdev); 833 struct hid_report *r; 834 struct hid_report_enum *re; 835 836 if (td->inputmode < 0) 837 return; 838 839 re = &(hdev->report_enum[HID_FEATURE_REPORT]); 840 r = re->report_id_hash[td->inputmode]; 841 if (r) { 842 r->field[0]->value[td->inputmode_index] = 0x02; 843 hid_hw_request(hdev, r, HID_REQ_SET_REPORT); 844 } 845 } 846 847 static void mt_set_maxcontacts(struct hid_device *hdev) 848 { 849 struct mt_device *td = hid_get_drvdata(hdev); 850 struct hid_report *r; 851 struct hid_report_enum *re; 852 int fieldmax, max; 853 854 if (td->maxcontact_report_id < 0) 855 return; 856 857 if (!td->mtclass.maxcontacts) 858 return; 859 860 re = &hdev->report_enum[HID_FEATURE_REPORT]; 861 r = re->report_id_hash[td->maxcontact_report_id]; 862 if (r) { 863 max = td->mtclass.maxcontacts; 864 fieldmax = r->field[0]->logical_maximum; 865 max = min(fieldmax, max); 866 if (r->field[0]->value[0] != max) { 867 r->field[0]->value[0] = max; 868 hid_hw_request(hdev, r, HID_REQ_SET_REPORT); 869 } 870 } 871 } 872 873 static void mt_post_parse_default_settings(struct mt_device *td) 874 { 875 __s32 quirks = td->mtclass.quirks; 876 877 /* unknown serial device needs special quirks */ 878 if (td->touches_by_report == 1) { 879 quirks |= MT_QUIRK_ALWAYS_VALID; 880 quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP; 881 quirks &= ~MT_QUIRK_VALID_IS_INRANGE; 882 quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE; 883 quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; 884 } 885 886 td->mtclass.quirks = quirks; 887 } 888 889 static void mt_post_parse(struct mt_device *td) 890 { 891 struct mt_fields *f = td->fields; 892 struct mt_class *cls = &td->mtclass; 893 894 if (td->touches_by_report > 0) { 895 int field_count_per_touch = f->length / td->touches_by_report; 896 td->last_slot_field = f->usages[field_count_per_touch - 1]; 897 } 898 899 if (td->cc_index < 0) 900 cls->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; 901 } 902 903 static void mt_input_configured(struct hid_device *hdev, struct hid_input *hi) 904 { 905 struct mt_device *td = hid_get_drvdata(hdev); 906 char *name; 907 const char *suffix = NULL; 908 909 if (hi->report->id == td->mt_report_id) 910 mt_touch_input_configured(hdev, hi); 911 912 if (hi->report->field[0]->physical == HID_DG_STYLUS) { 913 suffix = "Pen"; 914 mt_pen_input_configured(hdev, hi); 915 } 916 917 if (suffix) { 918 name = devm_kzalloc(&hi->input->dev, 919 strlen(hdev->name) + strlen(suffix) + 2, 920 GFP_KERNEL); 921 if (name) { 922 sprintf(name, "%s %s", hdev->name, suffix); 923 hi->input->name = name; 924 } 925 } 926 } 927 928 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) 929 { 930 int ret, i; 931 struct mt_device *td; 932 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */ 933 934 for (i = 0; mt_classes[i].name ; i++) { 935 if (id->driver_data == mt_classes[i].name) { 936 mtclass = &(mt_classes[i]); 937 break; 938 } 939 } 940 941 /* This allows the driver to correctly support devices 942 * that emit events over several HID messages. 943 */ 944 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC; 945 946 /* 947 * This allows the driver to handle different input sensors 948 * that emits events through different reports on the same HID 949 * device. 950 */ 951 hdev->quirks |= HID_QUIRK_MULTI_INPUT; 952 hdev->quirks |= HID_QUIRK_NO_EMPTY_INPUT; 953 954 /* 955 * Handle special quirks for Windows 8 certified devices. 956 */ 957 if (id->group == HID_GROUP_MULTITOUCH_WIN_8) 958 /* 959 * Some multitouch screens do not like to be polled for input 960 * reports. Fortunately, the Win8 spec says that all touches 961 * should be sent during each report, making the initialization 962 * of input reports unnecessary. 963 */ 964 hdev->quirks |= HID_QUIRK_NO_INIT_INPUT_REPORTS; 965 966 td = devm_kzalloc(&hdev->dev, sizeof(struct mt_device), GFP_KERNEL); 967 if (!td) { 968 dev_err(&hdev->dev, "cannot allocate multitouch data\n"); 969 return -ENOMEM; 970 } 971 td->mtclass = *mtclass; 972 td->inputmode = -1; 973 td->maxcontact_report_id = -1; 974 td->cc_index = -1; 975 td->mt_report_id = -1; 976 td->pen_report_id = -1; 977 hid_set_drvdata(hdev, td); 978 979 td->fields = devm_kzalloc(&hdev->dev, sizeof(struct mt_fields), 980 GFP_KERNEL); 981 if (!td->fields) { 982 dev_err(&hdev->dev, "cannot allocate multitouch fields data\n"); 983 return -ENOMEM; 984 } 985 986 if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID) 987 td->serial_maybe = true; 988 989 ret = hid_parse(hdev); 990 if (ret != 0) 991 return ret; 992 993 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); 994 if (ret) 995 return ret; 996 997 ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group); 998 999 mt_set_maxcontacts(hdev); 1000 mt_set_input_mode(hdev); 1001 1002 /* release .fields memory as it is not used anymore */ 1003 devm_kfree(&hdev->dev, td->fields); 1004 td->fields = NULL; 1005 1006 return 0; 1007 } 1008 1009 #ifdef CONFIG_PM 1010 static int mt_reset_resume(struct hid_device *hdev) 1011 { 1012 mt_set_maxcontacts(hdev); 1013 mt_set_input_mode(hdev); 1014 return 0; 1015 } 1016 1017 static int mt_resume(struct hid_device *hdev) 1018 { 1019 /* Some Elan legacy devices require SET_IDLE to be set on resume. 1020 * It should be safe to send it to other devices too. 1021 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */ 1022 1023 hid_hw_idle(hdev, 0, 0, HID_REQ_SET_IDLE); 1024 1025 return 0; 1026 } 1027 #endif 1028 1029 static void mt_remove(struct hid_device *hdev) 1030 { 1031 sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group); 1032 hid_hw_stop(hdev); 1033 } 1034 1035 static const struct hid_device_id mt_devices[] = { 1036 1037 /* 3M panels */ 1038 { .driver_data = MT_CLS_3M, 1039 MT_USB_DEVICE(USB_VENDOR_ID_3M, 1040 USB_DEVICE_ID_3M1968) }, 1041 { .driver_data = MT_CLS_3M, 1042 MT_USB_DEVICE(USB_VENDOR_ID_3M, 1043 USB_DEVICE_ID_3M2256) }, 1044 { .driver_data = MT_CLS_3M, 1045 MT_USB_DEVICE(USB_VENDOR_ID_3M, 1046 USB_DEVICE_ID_3M3266) }, 1047 1048 /* ActionStar panels */ 1049 { .driver_data = MT_CLS_NSMU, 1050 MT_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR, 1051 USB_DEVICE_ID_ACTIONSTAR_1011) }, 1052 1053 /* Atmel panels */ 1054 { .driver_data = MT_CLS_SERIAL, 1055 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL, 1056 USB_DEVICE_ID_ATMEL_MULTITOUCH) }, 1057 { .driver_data = MT_CLS_SERIAL, 1058 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL, 1059 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) }, 1060 1061 /* Baanto multitouch devices */ 1062 { .driver_data = MT_CLS_NSMU, 1063 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO, 1064 USB_DEVICE_ID_BAANTO_MT_190W2) }, 1065 /* Cando panels */ 1066 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 1067 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1068 USB_DEVICE_ID_CANDO_MULTI_TOUCH) }, 1069 { .driver_data = MT_CLS_DUAL_CONTACT_NUMBER, 1070 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1071 USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) }, 1072 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 1073 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1074 USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) }, 1075 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 1076 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1077 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) }, 1078 1079 /* Chunghwa Telecom touch panels */ 1080 { .driver_data = MT_CLS_NSMU, 1081 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT, 1082 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) }, 1083 1084 /* CVTouch panels */ 1085 { .driver_data = MT_CLS_NSMU, 1086 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH, 1087 USB_DEVICE_ID_CVTOUCH_SCREEN) }, 1088 1089 /* Cypress panel */ 1090 { .driver_data = MT_CLS_CYPRESS, 1091 HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, 1092 USB_DEVICE_ID_CYPRESS_TRUETOUCH) }, 1093 1094 /* Data Modul easyMaxTouch */ 1095 { .driver_data = MT_CLS_DEFAULT, 1096 MT_USB_DEVICE(USB_VENDOR_ID_DATA_MODUL, 1097 USB_VENDOR_ID_DATA_MODUL_EASYMAXTOUCH) }, 1098 1099 /* eGalax devices (resistive) */ 1100 { .driver_data = MT_CLS_EGALAX, 1101 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1102 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) }, 1103 { .driver_data = MT_CLS_EGALAX, 1104 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1105 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) }, 1106 1107 /* eGalax devices (capacitive) */ 1108 { .driver_data = MT_CLS_EGALAX_SERIAL, 1109 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1110 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) }, 1111 { .driver_data = MT_CLS_EGALAX, 1112 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1113 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) }, 1114 { .driver_data = MT_CLS_EGALAX_SERIAL, 1115 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1116 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) }, 1117 { .driver_data = MT_CLS_EGALAX_SERIAL, 1118 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1119 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) }, 1120 { .driver_data = MT_CLS_EGALAX_SERIAL, 1121 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1122 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) }, 1123 { .driver_data = MT_CLS_EGALAX_SERIAL, 1124 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1125 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) }, 1126 { .driver_data = MT_CLS_EGALAX, 1127 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1128 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) }, 1129 { .driver_data = MT_CLS_EGALAX, 1130 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1131 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) }, 1132 { .driver_data = MT_CLS_EGALAX_SERIAL, 1133 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1134 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) }, 1135 { .driver_data = MT_CLS_EGALAX, 1136 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 1137 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) }, 1138 { .driver_data = MT_CLS_EGALAX, 1139 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 1140 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) }, 1141 { .driver_data = MT_CLS_EGALAX, 1142 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1143 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) }, 1144 { .driver_data = MT_CLS_EGALAX, 1145 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1146 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) }, 1147 { .driver_data = MT_CLS_EGALAX_SERIAL, 1148 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1149 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) }, 1150 { .driver_data = MT_CLS_EGALAX_SERIAL, 1151 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1152 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) }, 1153 { .driver_data = MT_CLS_EGALAX_SERIAL, 1154 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1155 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) }, 1156 1157 /* Elo TouchSystems IntelliTouch Plus panel */ 1158 { .driver_data = MT_CLS_DUAL_CONTACT_ID, 1159 MT_USB_DEVICE(USB_VENDOR_ID_ELO, 1160 USB_DEVICE_ID_ELO_TS2515) }, 1161 1162 /* Flatfrog Panels */ 1163 { .driver_data = MT_CLS_FLATFROG, 1164 MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG, 1165 USB_DEVICE_ID_MULTITOUCH_3200) }, 1166 1167 /* GeneralTouch panel */ 1168 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS, 1169 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1170 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) }, 1171 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1172 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1173 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) }, 1174 1175 /* Gametel game controller */ 1176 { .driver_data = MT_CLS_NSMU, 1177 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL, 1178 USB_DEVICE_ID_GAMETEL_MT_MODE) }, 1179 1180 /* GoodTouch panels */ 1181 { .driver_data = MT_CLS_NSMU, 1182 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH, 1183 USB_DEVICE_ID_GOODTOUCH_000f) }, 1184 1185 /* Hanvon panels */ 1186 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 1187 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT, 1188 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) }, 1189 1190 /* Ideacom panel */ 1191 { .driver_data = MT_CLS_SERIAL, 1192 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM, 1193 USB_DEVICE_ID_IDEACOM_IDC6650) }, 1194 { .driver_data = MT_CLS_SERIAL, 1195 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM, 1196 USB_DEVICE_ID_IDEACOM_IDC6651) }, 1197 1198 /* Ilitek dual touch panel */ 1199 { .driver_data = MT_CLS_NSMU, 1200 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK, 1201 USB_DEVICE_ID_ILITEK_MULTITOUCH) }, 1202 1203 /* IRTOUCH panels */ 1204 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 1205 MT_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS, 1206 USB_DEVICE_ID_IRTOUCH_INFRARED_USB) }, 1207 1208 /* LG Display panels */ 1209 { .driver_data = MT_CLS_DEFAULT, 1210 MT_USB_DEVICE(USB_VENDOR_ID_LG, 1211 USB_DEVICE_ID_LG_MULTITOUCH) }, 1212 1213 /* Lumio panels */ 1214 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1215 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO, 1216 USB_DEVICE_ID_CRYSTALTOUCH) }, 1217 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1218 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO, 1219 USB_DEVICE_ID_CRYSTALTOUCH_DUAL) }, 1220 1221 /* MosArt panels */ 1222 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1223 MT_USB_DEVICE(USB_VENDOR_ID_ASUS, 1224 USB_DEVICE_ID_ASUS_T91MT)}, 1225 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1226 MT_USB_DEVICE(USB_VENDOR_ID_ASUS, 1227 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) }, 1228 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1229 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX, 1230 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) }, 1231 1232 /* Nexio panels */ 1233 { .driver_data = MT_CLS_DEFAULT, 1234 MT_USB_DEVICE(USB_VENDOR_ID_NEXIO, 1235 USB_DEVICE_ID_NEXIO_MULTITOUCH_420)}, 1236 1237 /* Panasonic panels */ 1238 { .driver_data = MT_CLS_PANASONIC, 1239 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC, 1240 USB_DEVICE_ID_PANABOARD_UBT780) }, 1241 { .driver_data = MT_CLS_PANASONIC, 1242 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC, 1243 USB_DEVICE_ID_PANABOARD_UBT880) }, 1244 1245 /* Novatek Panel */ 1246 { .driver_data = MT_CLS_NSMU, 1247 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK, 1248 USB_DEVICE_ID_NOVATEK_PCT) }, 1249 1250 /* PenMount panels */ 1251 { .driver_data = MT_CLS_CONFIDENCE, 1252 MT_USB_DEVICE(USB_VENDOR_ID_PENMOUNT, 1253 USB_DEVICE_ID_PENMOUNT_PCI) }, 1254 1255 /* PixArt optical touch screen */ 1256 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1257 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1258 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) }, 1259 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1260 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1261 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) }, 1262 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1263 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1264 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) }, 1265 1266 /* PixCir-based panels */ 1267 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 1268 MT_USB_DEVICE(USB_VENDOR_ID_HANVON, 1269 USB_DEVICE_ID_HANVON_MULTITOUCH) }, 1270 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 1271 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1272 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) }, 1273 1274 /* Quanta-based panels */ 1275 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID, 1276 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA, 1277 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) }, 1278 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID, 1279 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA, 1280 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) }, 1281 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID, 1282 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA, 1283 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008) }, 1284 1285 /* Stantum panels */ 1286 { .driver_data = MT_CLS_CONFIDENCE, 1287 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM, 1288 USB_DEVICE_ID_MTP)}, 1289 { .driver_data = MT_CLS_CONFIDENCE, 1290 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, 1291 USB_DEVICE_ID_MTP_STM)}, 1292 { .driver_data = MT_CLS_DEFAULT, 1293 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX, 1294 USB_DEVICE_ID_MTP_SITRONIX)}, 1295 1296 /* TopSeed panels */ 1297 { .driver_data = MT_CLS_TOPSEED, 1298 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, 1299 USB_DEVICE_ID_TOPSEED2_PERIPAD_701) }, 1300 1301 /* Touch International panels */ 1302 { .driver_data = MT_CLS_NSMU, 1303 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL, 1304 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) }, 1305 1306 /* Unitec panels */ 1307 { .driver_data = MT_CLS_NSMU, 1308 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC, 1309 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) }, 1310 { .driver_data = MT_CLS_NSMU, 1311 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC, 1312 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) }, 1313 /* XAT */ 1314 { .driver_data = MT_CLS_NSMU, 1315 MT_USB_DEVICE(USB_VENDOR_ID_XAT, 1316 USB_DEVICE_ID_XAT_CSR) }, 1317 1318 /* Xiroku */ 1319 { .driver_data = MT_CLS_NSMU, 1320 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1321 USB_DEVICE_ID_XIROKU_SPX) }, 1322 { .driver_data = MT_CLS_NSMU, 1323 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1324 USB_DEVICE_ID_XIROKU_MPX) }, 1325 { .driver_data = MT_CLS_NSMU, 1326 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1327 USB_DEVICE_ID_XIROKU_CSR) }, 1328 { .driver_data = MT_CLS_NSMU, 1329 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1330 USB_DEVICE_ID_XIROKU_SPX1) }, 1331 { .driver_data = MT_CLS_NSMU, 1332 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1333 USB_DEVICE_ID_XIROKU_MPX1) }, 1334 { .driver_data = MT_CLS_NSMU, 1335 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1336 USB_DEVICE_ID_XIROKU_CSR1) }, 1337 { .driver_data = MT_CLS_NSMU, 1338 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1339 USB_DEVICE_ID_XIROKU_SPX2) }, 1340 { .driver_data = MT_CLS_NSMU, 1341 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1342 USB_DEVICE_ID_XIROKU_MPX2) }, 1343 { .driver_data = MT_CLS_NSMU, 1344 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1345 USB_DEVICE_ID_XIROKU_CSR2) }, 1346 1347 /* Zytronic panels */ 1348 { .driver_data = MT_CLS_SERIAL, 1349 MT_USB_DEVICE(USB_VENDOR_ID_ZYTRONIC, 1350 USB_DEVICE_ID_ZYTRONIC_ZXY100) }, 1351 1352 /* Generic MT device */ 1353 { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) }, 1354 1355 /* Generic Win 8 certified MT device */ 1356 { .driver_data = MT_CLS_WIN_8, 1357 HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH_WIN_8, 1358 HID_ANY_ID, HID_ANY_ID) }, 1359 { } 1360 }; 1361 MODULE_DEVICE_TABLE(hid, mt_devices); 1362 1363 static const struct hid_usage_id mt_grabbed_usages[] = { 1364 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID }, 1365 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1} 1366 }; 1367 1368 static struct hid_driver mt_driver = { 1369 .name = "hid-multitouch", 1370 .id_table = mt_devices, 1371 .probe = mt_probe, 1372 .remove = mt_remove, 1373 .input_mapping = mt_input_mapping, 1374 .input_mapped = mt_input_mapped, 1375 .input_configured = mt_input_configured, 1376 .feature_mapping = mt_feature_mapping, 1377 .usage_table = mt_grabbed_usages, 1378 .event = mt_event, 1379 .report = mt_report, 1380 #ifdef CONFIG_PM 1381 .reset_resume = mt_reset_resume, 1382 .resume = mt_resume, 1383 #endif 1384 }; 1385 module_hid_driver(mt_driver); 1386