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