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 if (!td->maxcontacts) 275 td->maxcontacts = MT_DEFAULT_MAXCONTACT; 276 input_mt_init_slots(hi->input, td->maxcontacts); 277 td->last_slot_field = usage->hid; 278 td->last_field_index = field->index; 279 td->last_mt_collection = usage->collection_index; 280 return 1; 281 case HID_DG_WIDTH: 282 hid_map_usage(hi, usage, bit, max, 283 EV_ABS, ABS_MT_TOUCH_MAJOR); 284 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field, 285 cls->sn_width); 286 if (td->last_mt_collection == usage->collection_index) { 287 td->last_slot_field = usage->hid; 288 td->last_field_index = field->index; 289 } 290 return 1; 291 case HID_DG_HEIGHT: 292 hid_map_usage(hi, usage, bit, max, 293 EV_ABS, ABS_MT_TOUCH_MINOR); 294 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field, 295 cls->sn_height); 296 input_set_abs_params(hi->input, 297 ABS_MT_ORIENTATION, 0, 1, 0, 0); 298 if (td->last_mt_collection == usage->collection_index) { 299 td->last_slot_field = usage->hid; 300 td->last_field_index = field->index; 301 } 302 return 1; 303 case HID_DG_TIPPRESSURE: 304 if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP) 305 field->logical_minimum = 0; 306 hid_map_usage(hi, usage, bit, max, 307 EV_ABS, ABS_MT_PRESSURE); 308 set_abs(hi->input, ABS_MT_PRESSURE, field, 309 cls->sn_pressure); 310 /* touchscreen emulation */ 311 set_abs(hi->input, ABS_PRESSURE, field, 312 cls->sn_pressure); 313 if (td->last_mt_collection == usage->collection_index) { 314 td->last_slot_field = usage->hid; 315 td->last_field_index = field->index; 316 } 317 return 1; 318 case HID_DG_CONTACTCOUNT: 319 if (td->last_mt_collection == usage->collection_index) 320 td->last_field_index = field->index; 321 return 1; 322 case HID_DG_CONTACTMAX: 323 /* we don't set td->last_slot_field as contactcount and 324 * contact max are global to the report */ 325 if (td->last_mt_collection == usage->collection_index) 326 td->last_field_index = field->index; 327 return -1; 328 } 329 /* let hid-input decide for the others */ 330 return 0; 331 332 case 0xff000000: 333 /* we do not want to map these: no input-oriented meaning */ 334 return -1; 335 } 336 337 return 0; 338 } 339 340 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi, 341 struct hid_field *field, struct hid_usage *usage, 342 unsigned long **bit, int *max) 343 { 344 if (usage->type == EV_KEY || usage->type == EV_ABS) 345 set_bit(usage->type, hi->input->evbit); 346 347 return -1; 348 } 349 350 static int mt_compute_slot(struct mt_device *td) 351 { 352 __s32 quirks = td->mtclass->quirks; 353 354 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID) 355 return td->curdata.contactid; 356 357 if (quirks & MT_QUIRK_CYPRESS) 358 return cypress_compute_slot(td); 359 360 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER) 361 return td->num_received; 362 363 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE) 364 return td->curdata.contactid - 1; 365 366 return find_slot_from_contactid(td); 367 } 368 369 /* 370 * this function is called when a whole contact has been processed, 371 * so that it can assign it to a slot and store the data there 372 */ 373 static void mt_complete_slot(struct mt_device *td) 374 { 375 td->curdata.seen_in_this_frame = true; 376 if (td->curvalid) { 377 int slotnum = mt_compute_slot(td); 378 379 if (slotnum >= 0 && slotnum < td->maxcontacts) 380 td->slots[slotnum] = td->curdata; 381 } 382 td->num_received++; 383 } 384 385 386 /* 387 * this function is called when a whole packet has been received and processed, 388 * so that it can decide what to send to the input layer. 389 */ 390 static void mt_emit_event(struct mt_device *td, struct input_dev *input) 391 { 392 int i; 393 394 for (i = 0; i < td->maxcontacts; ++i) { 395 struct mt_slot *s = &(td->slots[i]); 396 if ((td->mtclass->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) && 397 !s->seen_in_this_frame) { 398 s->touch_state = false; 399 } 400 401 input_mt_slot(input, i); 402 input_mt_report_slot_state(input, MT_TOOL_FINGER, 403 s->touch_state); 404 if (s->touch_state) { 405 /* this finger is on the screen */ 406 int wide = (s->w > s->h); 407 /* divided by two to match visual scale of touch */ 408 int major = max(s->w, s->h) >> 1; 409 int minor = min(s->w, s->h) >> 1; 410 411 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x); 412 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y); 413 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide); 414 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p); 415 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major); 416 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor); 417 } 418 s->seen_in_this_frame = false; 419 420 } 421 422 input_mt_report_pointer_emulation(input, true); 423 input_sync(input); 424 td->num_received = 0; 425 } 426 427 428 429 static int mt_event(struct hid_device *hid, struct hid_field *field, 430 struct hid_usage *usage, __s32 value) 431 { 432 struct mt_device *td = hid_get_drvdata(hid); 433 __s32 quirks = td->mtclass->quirks; 434 435 if (hid->claimed & HID_CLAIMED_INPUT && td->slots) { 436 switch (usage->hid) { 437 case HID_DG_INRANGE: 438 if (quirks & MT_QUIRK_VALID_IS_INRANGE) 439 td->curvalid = value; 440 break; 441 case HID_DG_TIPSWITCH: 442 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) 443 td->curvalid = value; 444 td->curdata.touch_state = value; 445 break; 446 case HID_DG_CONFIDENCE: 447 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE) 448 td->curvalid = value; 449 break; 450 case HID_DG_CONTACTID: 451 td->curdata.contactid = value; 452 break; 453 case HID_DG_TIPPRESSURE: 454 td->curdata.p = value; 455 break; 456 case HID_GD_X: 457 td->curdata.x = value; 458 break; 459 case HID_GD_Y: 460 td->curdata.y = value; 461 break; 462 case HID_DG_WIDTH: 463 td->curdata.w = value; 464 break; 465 case HID_DG_HEIGHT: 466 td->curdata.h = value; 467 break; 468 case HID_DG_CONTACTCOUNT: 469 /* 470 * Includes multi-packet support where subsequent 471 * packets are sent with zero contactcount. 472 */ 473 if (value) 474 td->num_expected = value; 475 break; 476 477 default: 478 /* fallback to the generic hidinput handling */ 479 return 0; 480 } 481 482 if (usage->hid == td->last_slot_field) { 483 mt_complete_slot(td); 484 } 485 486 if (field->index == td->last_field_index 487 && td->num_received >= td->num_expected) 488 mt_emit_event(td, field->hidinput->input); 489 490 } 491 492 /* we have handled the hidinput part, now remains hiddev */ 493 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event) 494 hid->hiddev_hid_event(hid, field, usage, value); 495 496 return 1; 497 } 498 499 static void mt_set_input_mode(struct hid_device *hdev) 500 { 501 struct mt_device *td = hid_get_drvdata(hdev); 502 struct hid_report *r; 503 struct hid_report_enum *re; 504 505 if (td->inputmode < 0) 506 return; 507 508 re = &(hdev->report_enum[HID_FEATURE_REPORT]); 509 r = re->report_id_hash[td->inputmode]; 510 if (r) { 511 r->field[0]->value[0] = 0x02; 512 usbhid_submit_report(hdev, r, USB_DIR_OUT); 513 } 514 } 515 516 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) 517 { 518 int ret, i; 519 struct mt_device *td; 520 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */ 521 522 for (i = 0; mt_classes[i].name ; i++) { 523 if (id->driver_data == mt_classes[i].name) { 524 mtclass = &(mt_classes[i]); 525 break; 526 } 527 } 528 529 /* This allows the driver to correctly support devices 530 * that emit events over several HID messages. 531 */ 532 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC; 533 534 td = kzalloc(sizeof(struct mt_device), GFP_KERNEL); 535 if (!td) { 536 dev_err(&hdev->dev, "cannot allocate multitouch data\n"); 537 return -ENOMEM; 538 } 539 td->mtclass = mtclass; 540 td->inputmode = -1; 541 td->last_mt_collection = -1; 542 hid_set_drvdata(hdev, td); 543 544 ret = hid_parse(hdev); 545 if (ret != 0) 546 goto fail; 547 548 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); 549 if (ret) 550 goto fail; 551 552 td->slots = kzalloc(td->maxcontacts * sizeof(struct mt_slot), 553 GFP_KERNEL); 554 if (!td->slots) { 555 dev_err(&hdev->dev, "cannot allocate multitouch slots\n"); 556 hid_hw_stop(hdev); 557 ret = -ENOMEM; 558 goto fail; 559 } 560 561 mt_set_input_mode(hdev); 562 563 return 0; 564 565 fail: 566 kfree(td); 567 return ret; 568 } 569 570 #ifdef CONFIG_PM 571 static int mt_reset_resume(struct hid_device *hdev) 572 { 573 mt_set_input_mode(hdev); 574 return 0; 575 } 576 #endif 577 578 static void mt_remove(struct hid_device *hdev) 579 { 580 struct mt_device *td = hid_get_drvdata(hdev); 581 hid_hw_stop(hdev); 582 kfree(td->slots); 583 kfree(td); 584 hid_set_drvdata(hdev, NULL); 585 } 586 587 static const struct hid_device_id mt_devices[] = { 588 589 /* 3M panels */ 590 { .driver_data = MT_CLS_3M, 591 HID_USB_DEVICE(USB_VENDOR_ID_3M, 592 USB_DEVICE_ID_3M1968) }, 593 { .driver_data = MT_CLS_3M, 594 HID_USB_DEVICE(USB_VENDOR_ID_3M, 595 USB_DEVICE_ID_3M2256) }, 596 597 /* ActionStar panels */ 598 { .driver_data = MT_CLS_DEFAULT, 599 HID_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR, 600 USB_DEVICE_ID_ACTIONSTAR_1011) }, 601 602 /* Cando panels */ 603 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 604 HID_USB_DEVICE(USB_VENDOR_ID_CANDO, 605 USB_DEVICE_ID_CANDO_MULTI_TOUCH) }, 606 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 607 HID_USB_DEVICE(USB_VENDOR_ID_CANDO, 608 USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) }, 609 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 610 HID_USB_DEVICE(USB_VENDOR_ID_CANDO, 611 USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) }, 612 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 613 HID_USB_DEVICE(USB_VENDOR_ID_CANDO, 614 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) }, 615 616 /* Chunghwa Telecom touch panels */ 617 { .driver_data = MT_CLS_DEFAULT, 618 HID_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT, 619 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) }, 620 621 /* CVTouch panels */ 622 { .driver_data = MT_CLS_DEFAULT, 623 HID_USB_DEVICE(USB_VENDOR_ID_CVTOUCH, 624 USB_DEVICE_ID_CVTOUCH_SCREEN) }, 625 626 /* Cypress panel */ 627 { .driver_data = MT_CLS_CYPRESS, 628 HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, 629 USB_DEVICE_ID_CYPRESS_TRUETOUCH) }, 630 631 /* eGalax devices (resistive) */ 632 { .driver_data = MT_CLS_EGALAX, 633 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 634 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH) }, 635 { .driver_data = MT_CLS_EGALAX, 636 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 637 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH3) }, 638 639 /* eGalax devices (capacitive) */ 640 { .driver_data = MT_CLS_EGALAX, 641 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 642 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1) }, 643 { .driver_data = MT_CLS_EGALAX, 644 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 645 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH2) }, 646 { .driver_data = MT_CLS_EGALAX, 647 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 648 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH4) }, 649 650 /* Elo TouchSystems IntelliTouch Plus panel */ 651 { .driver_data = MT_CLS_DUAL_NSMU_CONTACTID, 652 HID_USB_DEVICE(USB_VENDOR_ID_ELO, 653 USB_DEVICE_ID_ELO_TS2515) }, 654 655 /* GeneralTouch panel */ 656 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 657 HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 658 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) }, 659 660 /* GoodTouch panels */ 661 { .driver_data = MT_CLS_DEFAULT, 662 HID_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH, 663 USB_DEVICE_ID_GOODTOUCH_000f) }, 664 665 /* Ilitek dual touch panel */ 666 { .driver_data = MT_CLS_DEFAULT, 667 HID_USB_DEVICE(USB_VENDOR_ID_ILITEK, 668 USB_DEVICE_ID_ILITEK_MULTITOUCH) }, 669 670 /* IRTOUCH panels */ 671 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 672 HID_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS, 673 USB_DEVICE_ID_IRTOUCH_INFRARED_USB) }, 674 675 /* Lumio panels */ 676 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 677 HID_USB_DEVICE(USB_VENDOR_ID_LUMIO, 678 USB_DEVICE_ID_CRYSTALTOUCH) }, 679 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 680 HID_USB_DEVICE(USB_VENDOR_ID_LUMIO, 681 USB_DEVICE_ID_CRYSTALTOUCH_DUAL) }, 682 683 /* MosArt panels */ 684 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 685 HID_USB_DEVICE(USB_VENDOR_ID_ASUS, 686 USB_DEVICE_ID_ASUS_T91MT)}, 687 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 688 HID_USB_DEVICE(USB_VENDOR_ID_ASUS, 689 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) }, 690 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 691 HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, 692 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) }, 693 694 /* PenMount panels */ 695 { .driver_data = MT_CLS_CONFIDENCE, 696 HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT, 697 USB_DEVICE_ID_PENMOUNT_PCI) }, 698 699 /* PixCir-based panels */ 700 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 701 HID_USB_DEVICE(USB_VENDOR_ID_HANVON, 702 USB_DEVICE_ID_HANVON_MULTITOUCH) }, 703 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 704 HID_USB_DEVICE(USB_VENDOR_ID_CANDO, 705 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) }, 706 707 /* Stantum panels */ 708 { .driver_data = MT_CLS_CONFIDENCE, 709 HID_USB_DEVICE(USB_VENDOR_ID_STANTUM, 710 USB_DEVICE_ID_MTP)}, 711 { .driver_data = MT_CLS_CONFIDENCE, 712 HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, 713 USB_DEVICE_ID_MTP_STM)}, 714 { .driver_data = MT_CLS_CONFIDENCE, 715 HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX, 716 USB_DEVICE_ID_MTP_SITRONIX)}, 717 718 /* Touch International panels */ 719 { .driver_data = MT_CLS_DEFAULT, 720 HID_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL, 721 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) }, 722 723 /* Unitec panels */ 724 { .driver_data = MT_CLS_DEFAULT, 725 HID_USB_DEVICE(USB_VENDOR_ID_UNITEC, 726 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) }, 727 { .driver_data = MT_CLS_DEFAULT, 728 HID_USB_DEVICE(USB_VENDOR_ID_UNITEC, 729 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) }, 730 /* XAT */ 731 { .driver_data = MT_CLS_DEFAULT, 732 HID_USB_DEVICE(USB_VENDOR_ID_XAT, 733 USB_DEVICE_ID_XAT_CSR) }, 734 735 { } 736 }; 737 MODULE_DEVICE_TABLE(hid, mt_devices); 738 739 static const struct hid_usage_id mt_grabbed_usages[] = { 740 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID }, 741 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1} 742 }; 743 744 static struct hid_driver mt_driver = { 745 .name = "hid-multitouch", 746 .id_table = mt_devices, 747 .probe = mt_probe, 748 .remove = mt_remove, 749 .input_mapping = mt_input_mapping, 750 .input_mapped = mt_input_mapped, 751 .feature_mapping = mt_feature_mapping, 752 .usage_table = mt_grabbed_usages, 753 .event = mt_event, 754 #ifdef CONFIG_PM 755 .reset_resume = mt_reset_resume, 756 #endif 757 }; 758 759 static int __init mt_init(void) 760 { 761 return hid_register_driver(&mt_driver); 762 } 763 764 static void __exit mt_exit(void) 765 { 766 hid_unregister_driver(&mt_driver); 767 } 768 769 module_init(mt_init); 770 module_exit(mt_exit); 771