1 /* 2 * HID driver for multitouch panels 3 * 4 * Copyright (c) 2010-2011 Stephane Chatty <chatty@enac.fr> 5 * Copyright (c) 2010-2011 Benjamin Tissoires <benjamin.tissoires@gmail.com> 6 * Copyright (c) 2010-2011 Ecole Nationale de l'Aviation Civile, France 7 * 8 * This code is partly based on hid-egalax.c: 9 * 10 * Copyright (c) 2010 Stephane Chatty <chatty@enac.fr> 11 * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se> 12 * Copyright (c) 2010 Canonical, Ltd. 13 * 14 * This code is partly based on hid-3m-pct.c: 15 * 16 * Copyright (c) 2009-2010 Stephane Chatty <chatty@enac.fr> 17 * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se> 18 * Copyright (c) 2010 Canonical, Ltd. 19 * 20 */ 21 22 /* 23 * This program is free software; you can redistribute it and/or modify it 24 * under the terms of the GNU General Public License as published by the Free 25 * Software Foundation; either version 2 of the License, or (at your option) 26 * any later version. 27 */ 28 29 #include <linux/device.h> 30 #include <linux/hid.h> 31 #include <linux/module.h> 32 #include <linux/slab.h> 33 #include <linux/usb.h> 34 #include <linux/input/mt.h> 35 #include "usbhid/usbhid.h" 36 37 38 MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>"); 39 MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>"); 40 MODULE_DESCRIPTION("HID multitouch panels"); 41 MODULE_LICENSE("GPL"); 42 43 #include "hid-ids.h" 44 45 /* quirks to control the device */ 46 #define MT_QUIRK_NOT_SEEN_MEANS_UP (1 << 0) 47 #define MT_QUIRK_SLOT_IS_CONTACTID (1 << 1) 48 #define MT_QUIRK_CYPRESS (1 << 2) 49 #define MT_QUIRK_SLOT_IS_CONTACTNUMBER (1 << 3) 50 #define MT_QUIRK_VALID_IS_INRANGE (1 << 4) 51 #define MT_QUIRK_VALID_IS_CONFIDENCE (1 << 5) 52 #define MT_QUIRK_EGALAX_XYZ_FIXUP (1 << 6) 53 #define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE (1 << 7) 54 55 struct mt_slot { 56 __s32 x, y, p, w, h; 57 __s32 contactid; /* the device ContactID assigned to this slot */ 58 bool touch_state; /* is the touch valid? */ 59 bool seen_in_this_frame;/* has this slot been updated */ 60 }; 61 62 struct mt_device { 63 struct mt_slot curdata; /* placeholder of incoming data */ 64 struct mt_class *mtclass; /* our mt device class */ 65 unsigned last_field_index; /* last field index of the report */ 66 unsigned last_slot_field; /* the last field of a slot */ 67 int last_mt_collection; /* last known mt-related collection */ 68 __s8 inputmode; /* InputMode HID feature, -1 if non-existent */ 69 __u8 num_received; /* how many contacts we received */ 70 __u8 num_expected; /* expected last contact index */ 71 __u8 maxcontacts; 72 bool curvalid; /* is the current contact valid? */ 73 struct mt_slot *slots; 74 }; 75 76 struct mt_class { 77 __s32 name; /* MT_CLS */ 78 __s32 quirks; 79 __s32 sn_move; /* Signal/noise ratio for move events */ 80 __s32 sn_width; /* Signal/noise ratio for width events */ 81 __s32 sn_height; /* Signal/noise ratio for height events */ 82 __s32 sn_pressure; /* Signal/noise ratio for pressure events */ 83 __u8 maxcontacts; 84 }; 85 86 /* classes of device behavior */ 87 #define MT_CLS_DEFAULT 0x0001 88 89 #define MT_CLS_CONFIDENCE 0x0002 90 #define MT_CLS_CONFIDENCE_MINUS_ONE 0x0003 91 #define MT_CLS_DUAL_INRANGE_CONTACTID 0x0004 92 #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0005 93 #define MT_CLS_DUAL_NSMU_CONTACTID 0x0006 94 95 /* vendor specific classes */ 96 #define MT_CLS_3M 0x0101 97 #define MT_CLS_CYPRESS 0x0102 98 #define MT_CLS_EGALAX 0x0103 99 100 #define MT_DEFAULT_MAXCONTACT 10 101 102 /* 103 * these device-dependent functions determine what slot corresponds 104 * to a valid contact that was just read. 105 */ 106 107 static int cypress_compute_slot(struct mt_device *td) 108 { 109 if (td->curdata.contactid != 0 || td->num_received == 0) 110 return td->curdata.contactid; 111 else 112 return -1; 113 } 114 115 static int find_slot_from_contactid(struct mt_device *td) 116 { 117 int i; 118 for (i = 0; i < td->maxcontacts; ++i) { 119 if (td->slots[i].contactid == td->curdata.contactid && 120 td->slots[i].touch_state) 121 return i; 122 } 123 for (i = 0; i < td->maxcontacts; ++i) { 124 if (!td->slots[i].seen_in_this_frame && 125 !td->slots[i].touch_state) 126 return i; 127 } 128 /* should not occurs. If this happens that means 129 * that the device sent more touches that it says 130 * in the report descriptor. It is ignored then. */ 131 return -1; 132 } 133 134 struct mt_class mt_classes[] = { 135 { .name = MT_CLS_DEFAULT, 136 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP }, 137 { .name = MT_CLS_CONFIDENCE, 138 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE }, 139 { .name = MT_CLS_CONFIDENCE_MINUS_ONE, 140 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 141 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE }, 142 { .name = MT_CLS_DUAL_INRANGE_CONTACTID, 143 .quirks = MT_QUIRK_VALID_IS_INRANGE | 144 MT_QUIRK_SLOT_IS_CONTACTID, 145 .maxcontacts = 2 }, 146 { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 147 .quirks = MT_QUIRK_VALID_IS_INRANGE | 148 MT_QUIRK_SLOT_IS_CONTACTNUMBER, 149 .maxcontacts = 2 }, 150 { .name = MT_CLS_DUAL_NSMU_CONTACTID, 151 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 152 MT_QUIRK_SLOT_IS_CONTACTID, 153 .maxcontacts = 2 }, 154 155 /* 156 * vendor specific classes 157 */ 158 { .name = MT_CLS_3M, 159 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 160 MT_QUIRK_SLOT_IS_CONTACTID, 161 .sn_move = 2048, 162 .sn_width = 128, 163 .sn_height = 128 }, 164 { .name = MT_CLS_CYPRESS, 165 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 166 MT_QUIRK_CYPRESS, 167 .maxcontacts = 10 }, 168 { .name = MT_CLS_EGALAX, 169 .quirks = MT_QUIRK_SLOT_IS_CONTACTID | 170 MT_QUIRK_VALID_IS_INRANGE | 171 MT_QUIRK_EGALAX_XYZ_FIXUP, 172 .maxcontacts = 2, 173 .sn_move = 4096, 174 .sn_pressure = 32, 175 }, 176 177 { } 178 }; 179 180 static void mt_feature_mapping(struct hid_device *hdev, 181 struct hid_field *field, struct hid_usage *usage) 182 { 183 struct mt_device *td = hid_get_drvdata(hdev); 184 185 switch (usage->hid) { 186 case HID_DG_INPUTMODE: 187 td->inputmode = field->report->id; 188 break; 189 case HID_DG_CONTACTMAX: 190 td->maxcontacts = field->value[0]; 191 if (td->mtclass->maxcontacts) 192 /* check if the maxcontacts is given by the class */ 193 td->maxcontacts = td->mtclass->maxcontacts; 194 195 break; 196 } 197 } 198 199 static void set_abs(struct input_dev *input, unsigned int code, 200 struct hid_field *field, int snratio) 201 { 202 int fmin = field->logical_minimum; 203 int fmax = field->logical_maximum; 204 int fuzz = snratio ? (fmax - fmin) / snratio : 0; 205 input_set_abs_params(input, code, fmin, fmax, fuzz, 0); 206 } 207 208 static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi, 209 struct hid_field *field, struct hid_usage *usage, 210 unsigned long **bit, int *max) 211 { 212 struct mt_device *td = hid_get_drvdata(hdev); 213 struct mt_class *cls = td->mtclass; 214 __s32 quirks = cls->quirks; 215 216 switch (usage->hid & HID_USAGE_PAGE) { 217 218 case HID_UP_GENDESK: 219 switch (usage->hid) { 220 case HID_GD_X: 221 if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP) 222 field->logical_maximum = 32760; 223 hid_map_usage(hi, usage, bit, max, 224 EV_ABS, ABS_MT_POSITION_X); 225 set_abs(hi->input, ABS_MT_POSITION_X, field, 226 cls->sn_move); 227 /* touchscreen emulation */ 228 set_abs(hi->input, ABS_X, field, cls->sn_move); 229 if (td->last_mt_collection == usage->collection_index) { 230 td->last_slot_field = usage->hid; 231 td->last_field_index = field->index; 232 } 233 return 1; 234 case HID_GD_Y: 235 if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP) 236 field->logical_maximum = 32760; 237 hid_map_usage(hi, usage, bit, max, 238 EV_ABS, ABS_MT_POSITION_Y); 239 set_abs(hi->input, ABS_MT_POSITION_Y, field, 240 cls->sn_move); 241 /* touchscreen emulation */ 242 set_abs(hi->input, ABS_Y, field, cls->sn_move); 243 if (td->last_mt_collection == usage->collection_index) { 244 td->last_slot_field = usage->hid; 245 td->last_field_index = field->index; 246 } 247 return 1; 248 } 249 return 0; 250 251 case HID_UP_DIGITIZER: 252 switch (usage->hid) { 253 case HID_DG_INRANGE: 254 if (td->last_mt_collection == usage->collection_index) { 255 td->last_slot_field = usage->hid; 256 td->last_field_index = field->index; 257 } 258 return 1; 259 case HID_DG_CONFIDENCE: 260 if (td->last_mt_collection == usage->collection_index) { 261 td->last_slot_field = usage->hid; 262 td->last_field_index = field->index; 263 } 264 return 1; 265 case HID_DG_TIPSWITCH: 266 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH); 267 input_set_capability(hi->input, EV_KEY, BTN_TOUCH); 268 if (td->last_mt_collection == usage->collection_index) { 269 td->last_slot_field = usage->hid; 270 td->last_field_index = field->index; 271 } 272 return 1; 273 case HID_DG_CONTACTID: 274 input_mt_init_slots(hi->input, td->maxcontacts); 275 td->last_slot_field = usage->hid; 276 td->last_field_index = field->index; 277 td->last_mt_collection = usage->collection_index; 278 return 1; 279 case HID_DG_WIDTH: 280 hid_map_usage(hi, usage, bit, max, 281 EV_ABS, ABS_MT_TOUCH_MAJOR); 282 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field, 283 cls->sn_width); 284 if (td->last_mt_collection == usage->collection_index) { 285 td->last_slot_field = usage->hid; 286 td->last_field_index = field->index; 287 } 288 return 1; 289 case HID_DG_HEIGHT: 290 hid_map_usage(hi, usage, bit, max, 291 EV_ABS, ABS_MT_TOUCH_MINOR); 292 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field, 293 cls->sn_height); 294 input_set_abs_params(hi->input, 295 ABS_MT_ORIENTATION, 0, 1, 0, 0); 296 if (td->last_mt_collection == usage->collection_index) { 297 td->last_slot_field = usage->hid; 298 td->last_field_index = field->index; 299 } 300 return 1; 301 case HID_DG_TIPPRESSURE: 302 if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP) 303 field->logical_minimum = 0; 304 hid_map_usage(hi, usage, bit, max, 305 EV_ABS, ABS_MT_PRESSURE); 306 set_abs(hi->input, ABS_MT_PRESSURE, field, 307 cls->sn_pressure); 308 /* touchscreen emulation */ 309 set_abs(hi->input, ABS_PRESSURE, field, 310 cls->sn_pressure); 311 if (td->last_mt_collection == usage->collection_index) { 312 td->last_slot_field = usage->hid; 313 td->last_field_index = field->index; 314 } 315 return 1; 316 case HID_DG_CONTACTCOUNT: 317 if (td->last_mt_collection == usage->collection_index) 318 td->last_field_index = field->index; 319 return 1; 320 case HID_DG_CONTACTMAX: 321 /* we don't set td->last_slot_field as contactcount and 322 * contact max are global to the report */ 323 if (td->last_mt_collection == usage->collection_index) 324 td->last_field_index = field->index; 325 return -1; 326 } 327 /* let hid-input decide for the others */ 328 return 0; 329 330 case 0xff000000: 331 /* we do not want to map these: no input-oriented meaning */ 332 return -1; 333 } 334 335 return 0; 336 } 337 338 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi, 339 struct hid_field *field, struct hid_usage *usage, 340 unsigned long **bit, int *max) 341 { 342 if (usage->type == EV_KEY || usage->type == EV_ABS) 343 set_bit(usage->type, hi->input->evbit); 344 345 return -1; 346 } 347 348 static int mt_compute_slot(struct mt_device *td) 349 { 350 __s32 quirks = td->mtclass->quirks; 351 352 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID) 353 return td->curdata.contactid; 354 355 if (quirks & MT_QUIRK_CYPRESS) 356 return cypress_compute_slot(td); 357 358 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER) 359 return td->num_received; 360 361 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE) 362 return td->curdata.contactid - 1; 363 364 return find_slot_from_contactid(td); 365 } 366 367 /* 368 * this function is called when a whole contact has been processed, 369 * so that it can assign it to a slot and store the data there 370 */ 371 static void mt_complete_slot(struct mt_device *td) 372 { 373 td->curdata.seen_in_this_frame = true; 374 if (td->curvalid) { 375 int slotnum = mt_compute_slot(td); 376 377 if (slotnum >= 0 && slotnum < td->maxcontacts) 378 td->slots[slotnum] = td->curdata; 379 } 380 td->num_received++; 381 } 382 383 384 /* 385 * this function is called when a whole packet has been received and processed, 386 * so that it can decide what to send to the input layer. 387 */ 388 static void mt_emit_event(struct mt_device *td, struct input_dev *input) 389 { 390 int i; 391 392 for (i = 0; i < td->maxcontacts; ++i) { 393 struct mt_slot *s = &(td->slots[i]); 394 if ((td->mtclass->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) && 395 !s->seen_in_this_frame) { 396 s->touch_state = false; 397 } 398 399 input_mt_slot(input, i); 400 input_mt_report_slot_state(input, MT_TOOL_FINGER, 401 s->touch_state); 402 if (s->touch_state) { 403 /* this finger is on the screen */ 404 int wide = (s->w > s->h); 405 /* divided by two to match visual scale of touch */ 406 int major = max(s->w, s->h) >> 1; 407 int minor = min(s->w, s->h) >> 1; 408 409 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x); 410 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y); 411 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide); 412 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p); 413 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major); 414 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor); 415 } 416 s->seen_in_this_frame = false; 417 418 } 419 420 input_mt_report_pointer_emulation(input, true); 421 input_sync(input); 422 td->num_received = 0; 423 } 424 425 426 427 static int mt_event(struct hid_device *hid, struct hid_field *field, 428 struct hid_usage *usage, __s32 value) 429 { 430 struct mt_device *td = hid_get_drvdata(hid); 431 __s32 quirks = td->mtclass->quirks; 432 433 if (hid->claimed & HID_CLAIMED_INPUT && td->slots) { 434 switch (usage->hid) { 435 case HID_DG_INRANGE: 436 if (quirks & MT_QUIRK_VALID_IS_INRANGE) 437 td->curvalid = value; 438 break; 439 case HID_DG_TIPSWITCH: 440 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) 441 td->curvalid = value; 442 td->curdata.touch_state = value; 443 break; 444 case HID_DG_CONFIDENCE: 445 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE) 446 td->curvalid = value; 447 break; 448 case HID_DG_CONTACTID: 449 td->curdata.contactid = value; 450 break; 451 case HID_DG_TIPPRESSURE: 452 td->curdata.p = value; 453 break; 454 case HID_GD_X: 455 td->curdata.x = value; 456 break; 457 case HID_GD_Y: 458 td->curdata.y = value; 459 break; 460 case HID_DG_WIDTH: 461 td->curdata.w = value; 462 break; 463 case HID_DG_HEIGHT: 464 td->curdata.h = value; 465 break; 466 case HID_DG_CONTACTCOUNT: 467 /* 468 * Includes multi-packet support where subsequent 469 * packets are sent with zero contactcount. 470 */ 471 if (value) 472 td->num_expected = value; 473 break; 474 475 default: 476 /* fallback to the generic hidinput handling */ 477 return 0; 478 } 479 480 if (usage->hid == td->last_slot_field) { 481 mt_complete_slot(td); 482 } 483 484 if (field->index == td->last_field_index 485 && td->num_received >= td->num_expected) 486 mt_emit_event(td, field->hidinput->input); 487 488 } 489 490 /* we have handled the hidinput part, now remains hiddev */ 491 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event) 492 hid->hiddev_hid_event(hid, field, usage, value); 493 494 return 1; 495 } 496 497 static void mt_set_input_mode(struct hid_device *hdev) 498 { 499 struct mt_device *td = hid_get_drvdata(hdev); 500 struct hid_report *r; 501 struct hid_report_enum *re; 502 503 if (td->inputmode < 0) 504 return; 505 506 re = &(hdev->report_enum[HID_FEATURE_REPORT]); 507 r = re->report_id_hash[td->inputmode]; 508 if (r) { 509 r->field[0]->value[0] = 0x02; 510 usbhid_submit_report(hdev, r, USB_DIR_OUT); 511 } 512 } 513 514 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) 515 { 516 int ret, i; 517 struct mt_device *td; 518 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */ 519 520 for (i = 0; mt_classes[i].name ; i++) { 521 if (id->driver_data == mt_classes[i].name) { 522 mtclass = &(mt_classes[i]); 523 break; 524 } 525 } 526 527 /* This allows the driver to correctly support devices 528 * that emit events over several HID messages. 529 */ 530 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC; 531 532 td = kzalloc(sizeof(struct mt_device), GFP_KERNEL); 533 if (!td) { 534 dev_err(&hdev->dev, "cannot allocate multitouch data\n"); 535 return -ENOMEM; 536 } 537 td->mtclass = mtclass; 538 td->inputmode = -1; 539 td->last_mt_collection = -1; 540 hid_set_drvdata(hdev, td); 541 542 ret = hid_parse(hdev); 543 if (ret != 0) 544 goto fail; 545 546 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); 547 if (ret) 548 goto fail; 549 550 if (!td->maxcontacts) 551 td->maxcontacts = MT_DEFAULT_MAXCONTACT; 552 553 td->slots = kzalloc(td->maxcontacts * sizeof(struct mt_slot), 554 GFP_KERNEL); 555 if (!td->slots) { 556 dev_err(&hdev->dev, "cannot allocate multitouch slots\n"); 557 hid_hw_stop(hdev); 558 ret = -ENOMEM; 559 goto fail; 560 } 561 562 mt_set_input_mode(hdev); 563 564 return 0; 565 566 fail: 567 kfree(td); 568 return ret; 569 } 570 571 #ifdef CONFIG_PM 572 static int mt_reset_resume(struct hid_device *hdev) 573 { 574 mt_set_input_mode(hdev); 575 return 0; 576 } 577 #endif 578 579 static void mt_remove(struct hid_device *hdev) 580 { 581 struct mt_device *td = hid_get_drvdata(hdev); 582 hid_hw_stop(hdev); 583 kfree(td->slots); 584 kfree(td); 585 hid_set_drvdata(hdev, NULL); 586 } 587 588 static const struct hid_device_id mt_devices[] = { 589 590 /* 3M panels */ 591 { .driver_data = MT_CLS_3M, 592 HID_USB_DEVICE(USB_VENDOR_ID_3M, 593 USB_DEVICE_ID_3M1968) }, 594 { .driver_data = MT_CLS_3M, 595 HID_USB_DEVICE(USB_VENDOR_ID_3M, 596 USB_DEVICE_ID_3M2256) }, 597 598 /* ActionStar panels */ 599 { .driver_data = MT_CLS_DEFAULT, 600 HID_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR, 601 USB_DEVICE_ID_ACTIONSTAR_1011) }, 602 603 /* Cando panels */ 604 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 605 HID_USB_DEVICE(USB_VENDOR_ID_CANDO, 606 USB_DEVICE_ID_CANDO_MULTI_TOUCH) }, 607 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 608 HID_USB_DEVICE(USB_VENDOR_ID_CANDO, 609 USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) }, 610 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 611 HID_USB_DEVICE(USB_VENDOR_ID_CANDO, 612 USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) }, 613 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 614 HID_USB_DEVICE(USB_VENDOR_ID_CANDO, 615 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) }, 616 617 /* Chunghwa Telecom touch panels */ 618 { .driver_data = MT_CLS_DEFAULT, 619 HID_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT, 620 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) }, 621 622 /* CVTouch panels */ 623 { .driver_data = MT_CLS_DEFAULT, 624 HID_USB_DEVICE(USB_VENDOR_ID_CVTOUCH, 625 USB_DEVICE_ID_CVTOUCH_SCREEN) }, 626 627 /* Cypress panel */ 628 { .driver_data = MT_CLS_CYPRESS, 629 HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, 630 USB_DEVICE_ID_CYPRESS_TRUETOUCH) }, 631 632 /* eGalax devices (resistive) */ 633 { .driver_data = MT_CLS_EGALAX, 634 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 635 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH) }, 636 { .driver_data = MT_CLS_EGALAX, 637 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 638 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH3) }, 639 640 /* eGalax devices (capacitive) */ 641 { .driver_data = MT_CLS_EGALAX, 642 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 643 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1) }, 644 { .driver_data = MT_CLS_EGALAX, 645 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 646 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH2) }, 647 { .driver_data = MT_CLS_EGALAX, 648 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 649 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH4) }, 650 651 /* Elo TouchSystems IntelliTouch Plus panel */ 652 { .driver_data = MT_CLS_DUAL_NSMU_CONTACTID, 653 HID_USB_DEVICE(USB_VENDOR_ID_ELO, 654 USB_DEVICE_ID_ELO_TS2515) }, 655 656 /* GeneralTouch panel */ 657 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 658 HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 659 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) }, 660 661 /* GoodTouch panels */ 662 { .driver_data = MT_CLS_DEFAULT, 663 HID_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH, 664 USB_DEVICE_ID_GOODTOUCH_000f) }, 665 666 /* Ilitek dual touch panel */ 667 { .driver_data = MT_CLS_DEFAULT, 668 HID_USB_DEVICE(USB_VENDOR_ID_ILITEK, 669 USB_DEVICE_ID_ILITEK_MULTITOUCH) }, 670 671 /* IRTOUCH panels */ 672 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 673 HID_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS, 674 USB_DEVICE_ID_IRTOUCH_INFRARED_USB) }, 675 676 /* Lumio panels */ 677 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 678 HID_USB_DEVICE(USB_VENDOR_ID_LUMIO, 679 USB_DEVICE_ID_CRYSTALTOUCH) }, 680 681 /* MosArt panels */ 682 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 683 HID_USB_DEVICE(USB_VENDOR_ID_ASUS, 684 USB_DEVICE_ID_ASUS_T91MT)}, 685 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 686 HID_USB_DEVICE(USB_VENDOR_ID_ASUS, 687 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) }, 688 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 689 HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, 690 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) }, 691 692 /* PenMount panels */ 693 { .driver_data = MT_CLS_CONFIDENCE, 694 HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT, 695 USB_DEVICE_ID_PENMOUNT_PCI) }, 696 697 /* PixCir-based panels */ 698 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 699 HID_USB_DEVICE(USB_VENDOR_ID_HANVON, 700 USB_DEVICE_ID_HANVON_MULTITOUCH) }, 701 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 702 HID_USB_DEVICE(USB_VENDOR_ID_CANDO, 703 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) }, 704 705 /* Stantum panels */ 706 { .driver_data = MT_CLS_CONFIDENCE, 707 HID_USB_DEVICE(USB_VENDOR_ID_STANTUM, 708 USB_DEVICE_ID_MTP)}, 709 { .driver_data = MT_CLS_CONFIDENCE, 710 HID_USB_DEVICE(USB_VENDOR_ID_STANTUM, 711 USB_DEVICE_ID_MTP_STM)}, 712 { .driver_data = MT_CLS_CONFIDENCE, 713 HID_USB_DEVICE(USB_VENDOR_ID_STANTUM, 714 USB_DEVICE_ID_MTP_SITRONIX)}, 715 716 /* Touch International panels */ 717 { .driver_data = MT_CLS_DEFAULT, 718 HID_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL, 719 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) }, 720 721 /* Unitec panels */ 722 { .driver_data = MT_CLS_DEFAULT, 723 HID_USB_DEVICE(USB_VENDOR_ID_UNITEC, 724 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) }, 725 { .driver_data = MT_CLS_DEFAULT, 726 HID_USB_DEVICE(USB_VENDOR_ID_UNITEC, 727 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) }, 728 729 { } 730 }; 731 MODULE_DEVICE_TABLE(hid, mt_devices); 732 733 static const struct hid_usage_id mt_grabbed_usages[] = { 734 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID }, 735 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1} 736 }; 737 738 static struct hid_driver mt_driver = { 739 .name = "hid-multitouch", 740 .id_table = mt_devices, 741 .probe = mt_probe, 742 .remove = mt_remove, 743 .input_mapping = mt_input_mapping, 744 .input_mapped = mt_input_mapped, 745 .feature_mapping = mt_feature_mapping, 746 .usage_table = mt_grabbed_usages, 747 .event = mt_event, 748 #ifdef CONFIG_PM 749 .reset_resume = mt_reset_resume, 750 #endif 751 }; 752 753 static int __init mt_init(void) 754 { 755 return hid_register_driver(&mt_driver); 756 } 757 758 static void __exit mt_exit(void) 759 { 760 hid_unregister_driver(&mt_driver); 761 } 762 763 module_init(mt_init); 764 module_exit(mt_exit); 765