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_ALWAYS_VALID (1 << 4) 51 #define MT_QUIRK_VALID_IS_INRANGE (1 << 5) 52 #define MT_QUIRK_VALID_IS_CONFIDENCE (1 << 6) 53 #define MT_QUIRK_EGALAX_XYZ_FIXUP (1 << 7) 54 #define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE (1 << 8) 55 56 struct mt_slot { 57 __s32 x, y, p, w, h; 58 __s32 contactid; /* the device ContactID assigned to this slot */ 59 bool touch_state; /* is the touch valid? */ 60 bool seen_in_this_frame;/* has this slot been updated */ 61 }; 62 63 struct mt_device { 64 struct mt_slot curdata; /* placeholder of incoming data */ 65 struct mt_class *mtclass; /* our mt device class */ 66 unsigned last_field_index; /* last field index of the report */ 67 unsigned last_slot_field; /* the last field of a slot */ 68 int last_mt_collection; /* last known mt-related collection */ 69 __s8 inputmode; /* InputMode HID feature, -1 if non-existent */ 70 __u8 num_received; /* how many contacts we received */ 71 __u8 num_expected; /* expected last contact index */ 72 __u8 maxcontacts; 73 bool curvalid; /* is the current contact valid? */ 74 struct mt_slot *slots; 75 }; 76 77 struct mt_class { 78 __s32 name; /* MT_CLS */ 79 __s32 quirks; 80 __s32 sn_move; /* Signal/noise ratio for move events */ 81 __s32 sn_width; /* Signal/noise ratio for width events */ 82 __s32 sn_height; /* Signal/noise ratio for height events */ 83 __s32 sn_pressure; /* Signal/noise ratio for pressure events */ 84 __u8 maxcontacts; 85 }; 86 87 /* classes of device behavior */ 88 #define MT_CLS_DEFAULT 0x0001 89 90 #define MT_CLS_SERIAL 0x0002 91 #define MT_CLS_CONFIDENCE 0x0003 92 #define MT_CLS_CONFIDENCE_MINUS_ONE 0x0004 93 #define MT_CLS_DUAL_INRANGE_CONTACTID 0x0005 94 #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0006 95 #define MT_CLS_DUAL_NSMU_CONTACTID 0x0007 96 97 /* vendor specific classes */ 98 #define MT_CLS_3M 0x0101 99 #define MT_CLS_CYPRESS 0x0102 100 #define MT_CLS_EGALAX 0x0103 101 102 #define MT_DEFAULT_MAXCONTACT 10 103 104 /* 105 * these device-dependent functions determine what slot corresponds 106 * to a valid contact that was just read. 107 */ 108 109 static int cypress_compute_slot(struct mt_device *td) 110 { 111 if (td->curdata.contactid != 0 || td->num_received == 0) 112 return td->curdata.contactid; 113 else 114 return -1; 115 } 116 117 static int find_slot_from_contactid(struct mt_device *td) 118 { 119 int i; 120 for (i = 0; i < td->maxcontacts; ++i) { 121 if (td->slots[i].contactid == td->curdata.contactid && 122 td->slots[i].touch_state) 123 return i; 124 } 125 for (i = 0; i < td->maxcontacts; ++i) { 126 if (!td->slots[i].seen_in_this_frame && 127 !td->slots[i].touch_state) 128 return i; 129 } 130 /* should not occurs. If this happens that means 131 * that the device sent more touches that it says 132 * in the report descriptor. It is ignored then. */ 133 return -1; 134 } 135 136 struct mt_class mt_classes[] = { 137 { .name = MT_CLS_DEFAULT, 138 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP }, 139 { .name = MT_CLS_SERIAL, 140 .quirks = MT_QUIRK_ALWAYS_VALID}, 141 { .name = MT_CLS_CONFIDENCE, 142 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE }, 143 { .name = MT_CLS_CONFIDENCE_MINUS_ONE, 144 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 145 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE }, 146 { .name = MT_CLS_DUAL_INRANGE_CONTACTID, 147 .quirks = MT_QUIRK_VALID_IS_INRANGE | 148 MT_QUIRK_SLOT_IS_CONTACTID, 149 .maxcontacts = 2 }, 150 { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 151 .quirks = MT_QUIRK_VALID_IS_INRANGE | 152 MT_QUIRK_SLOT_IS_CONTACTNUMBER, 153 .maxcontacts = 2 }, 154 { .name = MT_CLS_DUAL_NSMU_CONTACTID, 155 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 156 MT_QUIRK_SLOT_IS_CONTACTID, 157 .maxcontacts = 2 }, 158 159 /* 160 * vendor specific classes 161 */ 162 { .name = MT_CLS_3M, 163 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 164 MT_QUIRK_SLOT_IS_CONTACTID, 165 .sn_move = 2048, 166 .sn_width = 128, 167 .sn_height = 128 }, 168 { .name = MT_CLS_CYPRESS, 169 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 170 MT_QUIRK_CYPRESS, 171 .maxcontacts = 10 }, 172 { .name = MT_CLS_EGALAX, 173 .quirks = MT_QUIRK_SLOT_IS_CONTACTID | 174 MT_QUIRK_VALID_IS_INRANGE | 175 MT_QUIRK_EGALAX_XYZ_FIXUP, 176 .maxcontacts = 2, 177 .sn_move = 4096, 178 .sn_pressure = 32, 179 }, 180 181 { } 182 }; 183 184 static void mt_feature_mapping(struct hid_device *hdev, 185 struct hid_field *field, struct hid_usage *usage) 186 { 187 struct mt_device *td = hid_get_drvdata(hdev); 188 189 switch (usage->hid) { 190 case HID_DG_INPUTMODE: 191 td->inputmode = field->report->id; 192 break; 193 case HID_DG_CONTACTMAX: 194 td->maxcontacts = field->value[0]; 195 if (td->mtclass->maxcontacts) 196 /* check if the maxcontacts is given by the class */ 197 td->maxcontacts = td->mtclass->maxcontacts; 198 199 break; 200 } 201 } 202 203 static void set_abs(struct input_dev *input, unsigned int code, 204 struct hid_field *field, int snratio) 205 { 206 int fmin = field->logical_minimum; 207 int fmax = field->logical_maximum; 208 int fuzz = snratio ? (fmax - fmin) / snratio : 0; 209 input_set_abs_params(input, code, fmin, fmax, fuzz, 0); 210 } 211 212 static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi, 213 struct hid_field *field, struct hid_usage *usage, 214 unsigned long **bit, int *max) 215 { 216 struct mt_device *td = hid_get_drvdata(hdev); 217 struct mt_class *cls = td->mtclass; 218 __s32 quirks = cls->quirks; 219 220 /* Only map fields from TouchScreen or TouchPad collections. 221 * We need to ignore fields that belong to other collections 222 * such as Mouse that might have the same GenericDesktop usages. */ 223 if (field->application == HID_DG_TOUCHSCREEN) 224 set_bit(INPUT_PROP_DIRECT, hi->input->propbit); 225 else if (field->application == HID_DG_TOUCHPAD) 226 set_bit(INPUT_PROP_POINTER, hi->input->propbit); 227 else 228 return 0; 229 230 switch (usage->hid & HID_USAGE_PAGE) { 231 232 case HID_UP_GENDESK: 233 switch (usage->hid) { 234 case HID_GD_X: 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_X); 239 set_abs(hi->input, ABS_MT_POSITION_X, field, 240 cls->sn_move); 241 /* touchscreen emulation */ 242 set_abs(hi->input, ABS_X, 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 case HID_GD_Y: 249 if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP) 250 field->logical_maximum = 32760; 251 hid_map_usage(hi, usage, bit, max, 252 EV_ABS, ABS_MT_POSITION_Y); 253 set_abs(hi->input, ABS_MT_POSITION_Y, field, 254 cls->sn_move); 255 /* touchscreen emulation */ 256 set_abs(hi->input, ABS_Y, field, cls->sn_move); 257 if (td->last_mt_collection == usage->collection_index) { 258 td->last_slot_field = usage->hid; 259 td->last_field_index = field->index; 260 } 261 return 1; 262 } 263 return 0; 264 265 case HID_UP_DIGITIZER: 266 switch (usage->hid) { 267 case HID_DG_INRANGE: 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_CONFIDENCE: 274 if (td->last_mt_collection == usage->collection_index) { 275 td->last_slot_field = usage->hid; 276 td->last_field_index = field->index; 277 } 278 return 1; 279 case HID_DG_TIPSWITCH: 280 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH); 281 input_set_capability(hi->input, EV_KEY, BTN_TOUCH); 282 if (td->last_mt_collection == usage->collection_index) { 283 td->last_slot_field = usage->hid; 284 td->last_field_index = field->index; 285 } 286 return 1; 287 case HID_DG_CONTACTID: 288 if (!td->maxcontacts) 289 td->maxcontacts = MT_DEFAULT_MAXCONTACT; 290 input_mt_init_slots(hi->input, td->maxcontacts); 291 td->last_slot_field = usage->hid; 292 td->last_field_index = field->index; 293 td->last_mt_collection = usage->collection_index; 294 return 1; 295 case HID_DG_WIDTH: 296 hid_map_usage(hi, usage, bit, max, 297 EV_ABS, ABS_MT_TOUCH_MAJOR); 298 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field, 299 cls->sn_width); 300 if (td->last_mt_collection == usage->collection_index) { 301 td->last_slot_field = usage->hid; 302 td->last_field_index = field->index; 303 } 304 return 1; 305 case HID_DG_HEIGHT: 306 hid_map_usage(hi, usage, bit, max, 307 EV_ABS, ABS_MT_TOUCH_MINOR); 308 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field, 309 cls->sn_height); 310 input_set_abs_params(hi->input, 311 ABS_MT_ORIENTATION, 0, 1, 0, 0); 312 if (td->last_mt_collection == usage->collection_index) { 313 td->last_slot_field = usage->hid; 314 td->last_field_index = field->index; 315 } 316 return 1; 317 case HID_DG_TIPPRESSURE: 318 if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP) 319 field->logical_minimum = 0; 320 hid_map_usage(hi, usage, bit, max, 321 EV_ABS, ABS_MT_PRESSURE); 322 set_abs(hi->input, ABS_MT_PRESSURE, field, 323 cls->sn_pressure); 324 /* touchscreen emulation */ 325 set_abs(hi->input, ABS_PRESSURE, field, 326 cls->sn_pressure); 327 if (td->last_mt_collection == usage->collection_index) { 328 td->last_slot_field = usage->hid; 329 td->last_field_index = field->index; 330 } 331 return 1; 332 case HID_DG_CONTACTCOUNT: 333 if (td->last_mt_collection == usage->collection_index) 334 td->last_field_index = field->index; 335 return 1; 336 case HID_DG_CONTACTMAX: 337 /* we don't set td->last_slot_field as contactcount and 338 * contact max are global to the report */ 339 if (td->last_mt_collection == usage->collection_index) 340 td->last_field_index = field->index; 341 return -1; 342 } 343 /* let hid-input decide for the others */ 344 return 0; 345 346 case 0xff000000: 347 /* we do not want to map these: no input-oriented meaning */ 348 return -1; 349 } 350 351 return 0; 352 } 353 354 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi, 355 struct hid_field *field, struct hid_usage *usage, 356 unsigned long **bit, int *max) 357 { 358 if (usage->type == EV_KEY || usage->type == EV_ABS) 359 set_bit(usage->type, hi->input->evbit); 360 361 return -1; 362 } 363 364 static int mt_compute_slot(struct mt_device *td) 365 { 366 __s32 quirks = td->mtclass->quirks; 367 368 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID) 369 return td->curdata.contactid; 370 371 if (quirks & MT_QUIRK_CYPRESS) 372 return cypress_compute_slot(td); 373 374 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER) 375 return td->num_received; 376 377 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE) 378 return td->curdata.contactid - 1; 379 380 return find_slot_from_contactid(td); 381 } 382 383 /* 384 * this function is called when a whole contact has been processed, 385 * so that it can assign it to a slot and store the data there 386 */ 387 static void mt_complete_slot(struct mt_device *td) 388 { 389 td->curdata.seen_in_this_frame = true; 390 if (td->curvalid) { 391 int slotnum = mt_compute_slot(td); 392 393 if (slotnum >= 0 && slotnum < td->maxcontacts) 394 td->slots[slotnum] = td->curdata; 395 } 396 td->num_received++; 397 } 398 399 400 /* 401 * this function is called when a whole packet has been received and processed, 402 * so that it can decide what to send to the input layer. 403 */ 404 static void mt_emit_event(struct mt_device *td, struct input_dev *input) 405 { 406 int i; 407 408 for (i = 0; i < td->maxcontacts; ++i) { 409 struct mt_slot *s = &(td->slots[i]); 410 if ((td->mtclass->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) && 411 !s->seen_in_this_frame) { 412 s->touch_state = false; 413 } 414 415 input_mt_slot(input, i); 416 input_mt_report_slot_state(input, MT_TOOL_FINGER, 417 s->touch_state); 418 if (s->touch_state) { 419 /* this finger is on the screen */ 420 int wide = (s->w > s->h); 421 /* divided by two to match visual scale of touch */ 422 int major = max(s->w, s->h) >> 1; 423 int minor = min(s->w, s->h) >> 1; 424 425 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x); 426 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y); 427 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide); 428 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p); 429 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major); 430 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor); 431 } 432 s->seen_in_this_frame = false; 433 434 } 435 436 input_mt_report_pointer_emulation(input, true); 437 input_sync(input); 438 td->num_received = 0; 439 } 440 441 442 443 static int mt_event(struct hid_device *hid, struct hid_field *field, 444 struct hid_usage *usage, __s32 value) 445 { 446 struct mt_device *td = hid_get_drvdata(hid); 447 __s32 quirks = td->mtclass->quirks; 448 449 if (hid->claimed & HID_CLAIMED_INPUT && td->slots) { 450 switch (usage->hid) { 451 case HID_DG_INRANGE: 452 if (quirks & MT_QUIRK_ALWAYS_VALID) 453 td->curvalid = true; 454 else if (quirks & MT_QUIRK_VALID_IS_INRANGE) 455 td->curvalid = value; 456 break; 457 case HID_DG_TIPSWITCH: 458 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) 459 td->curvalid = value; 460 td->curdata.touch_state = value; 461 break; 462 case HID_DG_CONFIDENCE: 463 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE) 464 td->curvalid = value; 465 break; 466 case HID_DG_CONTACTID: 467 td->curdata.contactid = value; 468 break; 469 case HID_DG_TIPPRESSURE: 470 td->curdata.p = value; 471 break; 472 case HID_GD_X: 473 td->curdata.x = value; 474 break; 475 case HID_GD_Y: 476 td->curdata.y = value; 477 break; 478 case HID_DG_WIDTH: 479 td->curdata.w = value; 480 break; 481 case HID_DG_HEIGHT: 482 td->curdata.h = value; 483 break; 484 case HID_DG_CONTACTCOUNT: 485 /* 486 * Includes multi-packet support where subsequent 487 * packets are sent with zero contactcount. 488 */ 489 if (value) 490 td->num_expected = value; 491 break; 492 493 default: 494 /* fallback to the generic hidinput handling */ 495 return 0; 496 } 497 498 if (usage->hid == td->last_slot_field) { 499 mt_complete_slot(td); 500 } 501 502 if (field->index == td->last_field_index 503 && td->num_received >= td->num_expected) 504 mt_emit_event(td, field->hidinput->input); 505 506 } 507 508 /* we have handled the hidinput part, now remains hiddev */ 509 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event) 510 hid->hiddev_hid_event(hid, field, usage, value); 511 512 return 1; 513 } 514 515 static void mt_set_input_mode(struct hid_device *hdev) 516 { 517 struct mt_device *td = hid_get_drvdata(hdev); 518 struct hid_report *r; 519 struct hid_report_enum *re; 520 521 if (td->inputmode < 0) 522 return; 523 524 re = &(hdev->report_enum[HID_FEATURE_REPORT]); 525 r = re->report_id_hash[td->inputmode]; 526 if (r) { 527 r->field[0]->value[0] = 0x02; 528 usbhid_submit_report(hdev, r, USB_DIR_OUT); 529 } 530 } 531 532 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) 533 { 534 int ret, i; 535 struct mt_device *td; 536 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */ 537 538 for (i = 0; mt_classes[i].name ; i++) { 539 if (id->driver_data == mt_classes[i].name) { 540 mtclass = &(mt_classes[i]); 541 break; 542 } 543 } 544 545 /* This allows the driver to correctly support devices 546 * that emit events over several HID messages. 547 */ 548 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC; 549 550 td = kzalloc(sizeof(struct mt_device), GFP_KERNEL); 551 if (!td) { 552 dev_err(&hdev->dev, "cannot allocate multitouch data\n"); 553 return -ENOMEM; 554 } 555 td->mtclass = mtclass; 556 td->inputmode = -1; 557 td->last_mt_collection = -1; 558 hid_set_drvdata(hdev, td); 559 560 ret = hid_parse(hdev); 561 if (ret != 0) 562 goto fail; 563 564 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); 565 if (ret) 566 goto fail; 567 568 td->slots = kzalloc(td->maxcontacts * sizeof(struct mt_slot), 569 GFP_KERNEL); 570 if (!td->slots) { 571 dev_err(&hdev->dev, "cannot allocate multitouch slots\n"); 572 hid_hw_stop(hdev); 573 ret = -ENOMEM; 574 goto fail; 575 } 576 577 mt_set_input_mode(hdev); 578 579 return 0; 580 581 fail: 582 kfree(td); 583 return ret; 584 } 585 586 #ifdef CONFIG_PM 587 static int mt_reset_resume(struct hid_device *hdev) 588 { 589 mt_set_input_mode(hdev); 590 return 0; 591 } 592 #endif 593 594 static void mt_remove(struct hid_device *hdev) 595 { 596 struct mt_device *td = hid_get_drvdata(hdev); 597 hid_hw_stop(hdev); 598 kfree(td->slots); 599 kfree(td); 600 hid_set_drvdata(hdev, NULL); 601 } 602 603 static const struct hid_device_id mt_devices[] = { 604 605 /* 3M panels */ 606 { .driver_data = MT_CLS_3M, 607 HID_USB_DEVICE(USB_VENDOR_ID_3M, 608 USB_DEVICE_ID_3M1968) }, 609 { .driver_data = MT_CLS_3M, 610 HID_USB_DEVICE(USB_VENDOR_ID_3M, 611 USB_DEVICE_ID_3M2256) }, 612 613 /* ActionStar panels */ 614 { .driver_data = MT_CLS_DEFAULT, 615 HID_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR, 616 USB_DEVICE_ID_ACTIONSTAR_1011) }, 617 618 /* Cando panels */ 619 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 620 HID_USB_DEVICE(USB_VENDOR_ID_CANDO, 621 USB_DEVICE_ID_CANDO_MULTI_TOUCH) }, 622 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 623 HID_USB_DEVICE(USB_VENDOR_ID_CANDO, 624 USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) }, 625 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 626 HID_USB_DEVICE(USB_VENDOR_ID_CANDO, 627 USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) }, 628 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 629 HID_USB_DEVICE(USB_VENDOR_ID_CANDO, 630 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) }, 631 632 /* Chunghwa Telecom touch panels */ 633 { .driver_data = MT_CLS_DEFAULT, 634 HID_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT, 635 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) }, 636 637 /* CVTouch panels */ 638 { .driver_data = MT_CLS_DEFAULT, 639 HID_USB_DEVICE(USB_VENDOR_ID_CVTOUCH, 640 USB_DEVICE_ID_CVTOUCH_SCREEN) }, 641 642 /* Cypress panel */ 643 { .driver_data = MT_CLS_CYPRESS, 644 HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, 645 USB_DEVICE_ID_CYPRESS_TRUETOUCH) }, 646 647 /* eGalax devices (resistive) */ 648 { .driver_data = MT_CLS_EGALAX, 649 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 650 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH) }, 651 { .driver_data = MT_CLS_EGALAX, 652 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 653 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH3) }, 654 655 /* eGalax devices (capacitive) */ 656 { .driver_data = MT_CLS_EGALAX, 657 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 658 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1) }, 659 { .driver_data = MT_CLS_EGALAX, 660 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 661 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH2) }, 662 { .driver_data = MT_CLS_EGALAX, 663 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 664 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH4) }, 665 666 /* Elo TouchSystems IntelliTouch Plus panel */ 667 { .driver_data = MT_CLS_DUAL_NSMU_CONTACTID, 668 HID_USB_DEVICE(USB_VENDOR_ID_ELO, 669 USB_DEVICE_ID_ELO_TS2515) }, 670 671 /* GeneralTouch panel */ 672 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 673 HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 674 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) }, 675 676 /* GoodTouch panels */ 677 { .driver_data = MT_CLS_DEFAULT, 678 HID_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH, 679 USB_DEVICE_ID_GOODTOUCH_000f) }, 680 681 /* Ideacom panel */ 682 { .driver_data = MT_CLS_SERIAL, 683 HID_USB_DEVICE(USB_VENDOR_ID_IDEACOM, 684 USB_DEVICE_ID_IDEACOM_IDC6650) }, 685 686 /* Ilitek dual touch panel */ 687 { .driver_data = MT_CLS_DEFAULT, 688 HID_USB_DEVICE(USB_VENDOR_ID_ILITEK, 689 USB_DEVICE_ID_ILITEK_MULTITOUCH) }, 690 691 /* IRTOUCH panels */ 692 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 693 HID_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS, 694 USB_DEVICE_ID_IRTOUCH_INFRARED_USB) }, 695 696 /* LG Display panels */ 697 { .driver_data = MT_CLS_DEFAULT, 698 HID_USB_DEVICE(USB_VENDOR_ID_LG, 699 USB_DEVICE_ID_LG_MULTITOUCH) }, 700 701 /* Lumio panels */ 702 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 703 HID_USB_DEVICE(USB_VENDOR_ID_LUMIO, 704 USB_DEVICE_ID_CRYSTALTOUCH) }, 705 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 706 HID_USB_DEVICE(USB_VENDOR_ID_LUMIO, 707 USB_DEVICE_ID_CRYSTALTOUCH_DUAL) }, 708 709 /* MosArt panels */ 710 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 711 HID_USB_DEVICE(USB_VENDOR_ID_ASUS, 712 USB_DEVICE_ID_ASUS_T91MT)}, 713 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 714 HID_USB_DEVICE(USB_VENDOR_ID_ASUS, 715 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) }, 716 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 717 HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, 718 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) }, 719 720 /* PenMount panels */ 721 { .driver_data = MT_CLS_CONFIDENCE, 722 HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT, 723 USB_DEVICE_ID_PENMOUNT_PCI) }, 724 725 /* PixCir-based panels */ 726 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 727 HID_USB_DEVICE(USB_VENDOR_ID_HANVON, 728 USB_DEVICE_ID_HANVON_MULTITOUCH) }, 729 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 730 HID_USB_DEVICE(USB_VENDOR_ID_CANDO, 731 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) }, 732 733 /* Stantum panels */ 734 { .driver_data = MT_CLS_CONFIDENCE, 735 HID_USB_DEVICE(USB_VENDOR_ID_STANTUM, 736 USB_DEVICE_ID_MTP)}, 737 { .driver_data = MT_CLS_CONFIDENCE, 738 HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, 739 USB_DEVICE_ID_MTP_STM)}, 740 { .driver_data = MT_CLS_CONFIDENCE, 741 HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX, 742 USB_DEVICE_ID_MTP_SITRONIX)}, 743 744 /* Touch International panels */ 745 { .driver_data = MT_CLS_DEFAULT, 746 HID_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL, 747 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) }, 748 749 /* Unitec panels */ 750 { .driver_data = MT_CLS_DEFAULT, 751 HID_USB_DEVICE(USB_VENDOR_ID_UNITEC, 752 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) }, 753 { .driver_data = MT_CLS_DEFAULT, 754 HID_USB_DEVICE(USB_VENDOR_ID_UNITEC, 755 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) }, 756 /* XAT */ 757 { .driver_data = MT_CLS_DEFAULT, 758 HID_USB_DEVICE(USB_VENDOR_ID_XAT, 759 USB_DEVICE_ID_XAT_CSR) }, 760 761 { } 762 }; 763 MODULE_DEVICE_TABLE(hid, mt_devices); 764 765 static const struct hid_usage_id mt_grabbed_usages[] = { 766 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID }, 767 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1} 768 }; 769 770 static struct hid_driver mt_driver = { 771 .name = "hid-multitouch", 772 .id_table = mt_devices, 773 .probe = mt_probe, 774 .remove = mt_remove, 775 .input_mapping = mt_input_mapping, 776 .input_mapped = mt_input_mapped, 777 .feature_mapping = mt_feature_mapping, 778 .usage_table = mt_grabbed_usages, 779 .event = mt_event, 780 #ifdef CONFIG_PM 781 .reset_resume = mt_reset_resume, 782 #endif 783 }; 784 785 static int __init mt_init(void) 786 { 787 return hid_register_driver(&mt_driver); 788 } 789 790 static void __exit mt_exit(void) 791 { 792 hid_unregister_driver(&mt_driver); 793 } 794 795 module_init(mt_init); 796 module_exit(mt_exit); 797