1 /* 2 * HID driver for multitouch panels 3 * 4 * Copyright (c) 2010-2012 Stephane Chatty <chatty@enac.fr> 5 * Copyright (c) 2010-2012 Benjamin Tissoires <benjamin.tissoires@gmail.com> 6 * Copyright (c) 2010-2012 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_SLOT_IS_CONTACTID_MINUS_ONE (1 << 8) 54 #define MT_QUIRK_NO_AREA (1 << 9) 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 }; 61 62 struct mt_class { 63 __s32 name; /* MT_CLS */ 64 __s32 quirks; 65 __s32 sn_move; /* Signal/noise ratio for move events */ 66 __s32 sn_width; /* Signal/noise ratio for width events */ 67 __s32 sn_height; /* Signal/noise ratio for height events */ 68 __s32 sn_pressure; /* Signal/noise ratio for pressure events */ 69 __u8 maxcontacts; 70 bool is_indirect; /* true for touchpads */ 71 }; 72 73 struct mt_fields { 74 unsigned usages[HID_MAX_FIELDS]; 75 unsigned int length; 76 }; 77 78 struct mt_device { 79 struct mt_slot curdata; /* placeholder of incoming data */ 80 struct mt_class mtclass; /* our mt device class */ 81 struct mt_fields *fields; /* temporary placeholder for storing the 82 multitouch fields */ 83 unsigned last_field_index; /* last field index of the report */ 84 unsigned last_slot_field; /* the last field of a slot */ 85 __s8 inputmode; /* InputMode HID feature, -1 if non-existent */ 86 __s8 inputmode_index; /* InputMode HID feature index in the report */ 87 __s8 maxcontact_report_id; /* Maximum Contact Number HID feature, 88 -1 if non-existent */ 89 __u8 num_received; /* how many contacts we received */ 90 __u8 num_expected; /* expected last contact index */ 91 __u8 maxcontacts; 92 __u8 touches_by_report; /* how many touches are present in one report: 93 * 1 means we should use a serial protocol 94 * > 1 means hybrid (multitouch) protocol */ 95 bool serial_maybe; /* need to check for serial protocol */ 96 bool curvalid; /* is the current contact valid? */ 97 unsigned mt_flags; /* flags to pass to input-mt */ 98 }; 99 100 /* classes of device behavior */ 101 #define MT_CLS_DEFAULT 0x0001 102 103 #define MT_CLS_SERIAL 0x0002 104 #define MT_CLS_CONFIDENCE 0x0003 105 #define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004 106 #define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005 107 #define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006 108 #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007 109 #define MT_CLS_DUAL_NSMU_CONTACTID 0x0008 110 #define MT_CLS_INRANGE_CONTACTNUMBER 0x0009 111 112 /* vendor specific classes */ 113 #define MT_CLS_3M 0x0101 114 #define MT_CLS_CYPRESS 0x0102 115 #define MT_CLS_EGALAX 0x0103 116 #define MT_CLS_EGALAX_SERIAL 0x0104 117 #define MT_CLS_TOPSEED 0x0105 118 #define MT_CLS_PANASONIC 0x0106 119 #define MT_CLS_FLATFROG 0x0107 120 #define MT_CLS_GENERALTOUCH_TWOFINGERS 0x0108 121 #define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109 122 123 #define MT_DEFAULT_MAXCONTACT 10 124 125 #define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p) 126 #define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p) 127 128 /* 129 * these device-dependent functions determine what slot corresponds 130 * to a valid contact that was just read. 131 */ 132 133 static int cypress_compute_slot(struct mt_device *td) 134 { 135 if (td->curdata.contactid != 0 || td->num_received == 0) 136 return td->curdata.contactid; 137 else 138 return -1; 139 } 140 141 static struct mt_class mt_classes[] = { 142 { .name = MT_CLS_DEFAULT, 143 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP }, 144 { .name = MT_CLS_SERIAL, 145 .quirks = MT_QUIRK_ALWAYS_VALID}, 146 { .name = MT_CLS_CONFIDENCE, 147 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE }, 148 { .name = MT_CLS_CONFIDENCE_CONTACT_ID, 149 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 150 MT_QUIRK_SLOT_IS_CONTACTID }, 151 { .name = MT_CLS_CONFIDENCE_MINUS_ONE, 152 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 153 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE }, 154 { .name = MT_CLS_DUAL_INRANGE_CONTACTID, 155 .quirks = MT_QUIRK_VALID_IS_INRANGE | 156 MT_QUIRK_SLOT_IS_CONTACTID, 157 .maxcontacts = 2 }, 158 { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 159 .quirks = MT_QUIRK_VALID_IS_INRANGE | 160 MT_QUIRK_SLOT_IS_CONTACTNUMBER, 161 .maxcontacts = 2 }, 162 { .name = MT_CLS_DUAL_NSMU_CONTACTID, 163 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 164 MT_QUIRK_SLOT_IS_CONTACTID, 165 .maxcontacts = 2 }, 166 { .name = MT_CLS_INRANGE_CONTACTNUMBER, 167 .quirks = MT_QUIRK_VALID_IS_INRANGE | 168 MT_QUIRK_SLOT_IS_CONTACTNUMBER }, 169 170 /* 171 * vendor specific classes 172 */ 173 { .name = MT_CLS_3M, 174 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 175 MT_QUIRK_SLOT_IS_CONTACTID, 176 .sn_move = 2048, 177 .sn_width = 128, 178 .sn_height = 128, 179 .maxcontacts = 60, 180 }, 181 { .name = MT_CLS_CYPRESS, 182 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 183 MT_QUIRK_CYPRESS, 184 .maxcontacts = 10 }, 185 { .name = MT_CLS_EGALAX, 186 .quirks = MT_QUIRK_SLOT_IS_CONTACTID | 187 MT_QUIRK_VALID_IS_INRANGE, 188 .sn_move = 4096, 189 .sn_pressure = 32, 190 }, 191 { .name = MT_CLS_EGALAX_SERIAL, 192 .quirks = MT_QUIRK_SLOT_IS_CONTACTID | 193 MT_QUIRK_ALWAYS_VALID, 194 .sn_move = 4096, 195 .sn_pressure = 32, 196 }, 197 { .name = MT_CLS_TOPSEED, 198 .quirks = MT_QUIRK_ALWAYS_VALID, 199 .is_indirect = true, 200 .maxcontacts = 2, 201 }, 202 { .name = MT_CLS_PANASONIC, 203 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP, 204 .maxcontacts = 4 }, 205 { .name = MT_CLS_GENERALTOUCH_TWOFINGERS, 206 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 207 MT_QUIRK_VALID_IS_INRANGE | 208 MT_QUIRK_SLOT_IS_CONTACTNUMBER, 209 .maxcontacts = 2 210 }, 211 { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 212 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 213 MT_QUIRK_SLOT_IS_CONTACTNUMBER 214 }, 215 216 { .name = MT_CLS_FLATFROG, 217 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 218 MT_QUIRK_NO_AREA, 219 .sn_move = 2048, 220 .maxcontacts = 40, 221 }, 222 { } 223 }; 224 225 static ssize_t mt_show_quirks(struct device *dev, 226 struct device_attribute *attr, 227 char *buf) 228 { 229 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 230 struct mt_device *td = hid_get_drvdata(hdev); 231 232 return sprintf(buf, "%u\n", td->mtclass.quirks); 233 } 234 235 static ssize_t mt_set_quirks(struct device *dev, 236 struct device_attribute *attr, 237 const char *buf, size_t count) 238 { 239 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 240 struct mt_device *td = hid_get_drvdata(hdev); 241 242 unsigned long val; 243 244 if (kstrtoul(buf, 0, &val)) 245 return -EINVAL; 246 247 td->mtclass.quirks = val; 248 249 return count; 250 } 251 252 static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks); 253 254 static struct attribute *sysfs_attrs[] = { 255 &dev_attr_quirks.attr, 256 NULL 257 }; 258 259 static struct attribute_group mt_attribute_group = { 260 .attrs = sysfs_attrs 261 }; 262 263 static void mt_feature_mapping(struct hid_device *hdev, 264 struct hid_field *field, struct hid_usage *usage) 265 { 266 struct mt_device *td = hid_get_drvdata(hdev); 267 int i; 268 269 switch (usage->hid) { 270 case HID_DG_INPUTMODE: 271 td->inputmode = field->report->id; 272 td->inputmode_index = 0; /* has to be updated below */ 273 274 for (i=0; i < field->maxusage; i++) { 275 if (field->usage[i].hid == usage->hid) { 276 td->inputmode_index = i; 277 break; 278 } 279 } 280 281 break; 282 case HID_DG_CONTACTMAX: 283 td->maxcontact_report_id = field->report->id; 284 td->maxcontacts = field->value[0]; 285 if (td->mtclass.maxcontacts) 286 /* check if the maxcontacts is given by the class */ 287 td->maxcontacts = td->mtclass.maxcontacts; 288 289 break; 290 } 291 } 292 293 static void set_abs(struct input_dev *input, unsigned int code, 294 struct hid_field *field, int snratio) 295 { 296 int fmin = field->logical_minimum; 297 int fmax = field->logical_maximum; 298 int fuzz = snratio ? (fmax - fmin) / snratio : 0; 299 input_set_abs_params(input, code, fmin, fmax, fuzz, 0); 300 } 301 302 static void mt_store_field(struct hid_usage *usage, struct mt_device *td, 303 struct hid_input *hi) 304 { 305 struct mt_fields *f = td->fields; 306 307 if (f->length >= HID_MAX_FIELDS) 308 return; 309 310 f->usages[f->length++] = usage->hid; 311 } 312 313 static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi, 314 struct hid_field *field, struct hid_usage *usage, 315 unsigned long **bit, int *max) 316 { 317 struct mt_device *td = hid_get_drvdata(hdev); 318 struct mt_class *cls = &td->mtclass; 319 int code; 320 321 /* Only map fields from TouchScreen or TouchPad collections. 322 * We need to ignore fields that belong to other collections 323 * such as Mouse that might have the same GenericDesktop usages. */ 324 if (field->application == HID_DG_TOUCHSCREEN) 325 td->mt_flags |= INPUT_MT_DIRECT; 326 else if (field->application != HID_DG_TOUCHPAD) 327 return 0; 328 329 /* 330 * Model touchscreens providing buttons as touchpads. 331 */ 332 if (field->application == HID_DG_TOUCHPAD || 333 (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) 334 td->mt_flags |= INPUT_MT_POINTER; 335 336 /* eGalax devices provide a Digitizer.Stylus input which overrides 337 * the correct Digitizers.Finger X/Y ranges. 338 * Let's just ignore this input. */ 339 if (field->physical == HID_DG_STYLUS) 340 return -1; 341 342 switch (usage->hid & HID_USAGE_PAGE) { 343 344 case HID_UP_GENDESK: 345 switch (usage->hid) { 346 case HID_GD_X: 347 hid_map_usage(hi, usage, bit, max, 348 EV_ABS, ABS_MT_POSITION_X); 349 set_abs(hi->input, ABS_MT_POSITION_X, field, 350 cls->sn_move); 351 mt_store_field(usage, td, hi); 352 td->last_field_index = field->index; 353 return 1; 354 case HID_GD_Y: 355 hid_map_usage(hi, usage, bit, max, 356 EV_ABS, ABS_MT_POSITION_Y); 357 set_abs(hi->input, ABS_MT_POSITION_Y, field, 358 cls->sn_move); 359 mt_store_field(usage, td, hi); 360 td->last_field_index = field->index; 361 return 1; 362 } 363 return 0; 364 365 case HID_UP_DIGITIZER: 366 switch (usage->hid) { 367 case HID_DG_INRANGE: 368 mt_store_field(usage, td, hi); 369 td->last_field_index = field->index; 370 return 1; 371 case HID_DG_CONFIDENCE: 372 mt_store_field(usage, td, hi); 373 td->last_field_index = field->index; 374 return 1; 375 case HID_DG_TIPSWITCH: 376 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH); 377 input_set_capability(hi->input, EV_KEY, BTN_TOUCH); 378 mt_store_field(usage, td, hi); 379 td->last_field_index = field->index; 380 return 1; 381 case HID_DG_CONTACTID: 382 mt_store_field(usage, td, hi); 383 td->last_field_index = field->index; 384 td->touches_by_report++; 385 return 1; 386 case HID_DG_WIDTH: 387 hid_map_usage(hi, usage, bit, max, 388 EV_ABS, ABS_MT_TOUCH_MAJOR); 389 if (!(cls->quirks & MT_QUIRK_NO_AREA)) 390 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field, 391 cls->sn_width); 392 mt_store_field(usage, td, hi); 393 td->last_field_index = field->index; 394 return 1; 395 case HID_DG_HEIGHT: 396 hid_map_usage(hi, usage, bit, max, 397 EV_ABS, ABS_MT_TOUCH_MINOR); 398 if (!(cls->quirks & MT_QUIRK_NO_AREA)) { 399 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field, 400 cls->sn_height); 401 input_set_abs_params(hi->input, 402 ABS_MT_ORIENTATION, 0, 1, 0, 0); 403 } 404 mt_store_field(usage, td, hi); 405 td->last_field_index = field->index; 406 return 1; 407 case HID_DG_TIPPRESSURE: 408 hid_map_usage(hi, usage, bit, max, 409 EV_ABS, ABS_MT_PRESSURE); 410 set_abs(hi->input, ABS_MT_PRESSURE, field, 411 cls->sn_pressure); 412 mt_store_field(usage, td, hi); 413 td->last_field_index = field->index; 414 return 1; 415 case HID_DG_CONTACTCOUNT: 416 td->last_field_index = field->index; 417 return 1; 418 case HID_DG_CONTACTMAX: 419 /* we don't set td->last_slot_field as contactcount and 420 * contact max are global to the report */ 421 td->last_field_index = field->index; 422 return -1; 423 case HID_DG_TOUCH: 424 /* Legacy devices use TIPSWITCH and not TOUCH. 425 * Let's just ignore this field. */ 426 return -1; 427 } 428 /* let hid-input decide for the others */ 429 return 0; 430 431 case HID_UP_BUTTON: 432 code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE); 433 hid_map_usage(hi, usage, bit, max, EV_KEY, code); 434 input_set_capability(hi->input, EV_KEY, code); 435 return 1; 436 437 case 0xff000000: 438 /* we do not want to map these: no input-oriented meaning */ 439 return -1; 440 } 441 442 return 0; 443 } 444 445 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi, 446 struct hid_field *field, struct hid_usage *usage, 447 unsigned long **bit, int *max) 448 { 449 if (usage->type == EV_KEY || usage->type == EV_ABS) 450 set_bit(usage->type, hi->input->evbit); 451 452 return -1; 453 } 454 455 static int mt_compute_slot(struct mt_device *td, struct input_dev *input) 456 { 457 __s32 quirks = td->mtclass.quirks; 458 459 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID) 460 return td->curdata.contactid; 461 462 if (quirks & MT_QUIRK_CYPRESS) 463 return cypress_compute_slot(td); 464 465 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER) 466 return td->num_received; 467 468 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE) 469 return td->curdata.contactid - 1; 470 471 return input_mt_get_slot_by_key(input, td->curdata.contactid); 472 } 473 474 /* 475 * this function is called when a whole contact has been processed, 476 * so that it can assign it to a slot and store the data there 477 */ 478 static void mt_complete_slot(struct mt_device *td, struct input_dev *input) 479 { 480 if (td->curvalid) { 481 int slotnum = mt_compute_slot(td, input); 482 struct mt_slot *s = &td->curdata; 483 484 if (slotnum < 0 || slotnum >= td->maxcontacts) 485 return; 486 487 input_mt_slot(input, slotnum); 488 input_mt_report_slot_state(input, MT_TOOL_FINGER, 489 s->touch_state); 490 if (s->touch_state) { 491 /* this finger is on the screen */ 492 int wide = (s->w > s->h); 493 /* divided by two to match visual scale of touch */ 494 int major = max(s->w, s->h) >> 1; 495 int minor = min(s->w, s->h) >> 1; 496 497 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x); 498 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y); 499 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide); 500 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p); 501 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major); 502 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor); 503 } 504 } 505 506 td->num_received++; 507 } 508 509 /* 510 * this function is called when a whole packet has been received and processed, 511 * so that it can decide what to send to the input layer. 512 */ 513 static void mt_sync_frame(struct mt_device *td, struct input_dev *input) 514 { 515 input_mt_sync_frame(input); 516 input_sync(input); 517 td->num_received = 0; 518 } 519 520 static int mt_event(struct hid_device *hid, struct hid_field *field, 521 struct hid_usage *usage, __s32 value) 522 { 523 struct mt_device *td = hid_get_drvdata(hid); 524 __s32 quirks = td->mtclass.quirks; 525 526 if (hid->claimed & HID_CLAIMED_INPUT) { 527 switch (usage->hid) { 528 case HID_DG_INRANGE: 529 if (quirks & MT_QUIRK_ALWAYS_VALID) 530 td->curvalid = true; 531 else if (quirks & MT_QUIRK_VALID_IS_INRANGE) 532 td->curvalid = value; 533 break; 534 case HID_DG_TIPSWITCH: 535 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) 536 td->curvalid = value; 537 td->curdata.touch_state = value; 538 break; 539 case HID_DG_CONFIDENCE: 540 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE) 541 td->curvalid = value; 542 break; 543 case HID_DG_CONTACTID: 544 td->curdata.contactid = value; 545 break; 546 case HID_DG_TIPPRESSURE: 547 td->curdata.p = value; 548 break; 549 case HID_GD_X: 550 td->curdata.x = value; 551 break; 552 case HID_GD_Y: 553 td->curdata.y = value; 554 break; 555 case HID_DG_WIDTH: 556 td->curdata.w = value; 557 break; 558 case HID_DG_HEIGHT: 559 td->curdata.h = value; 560 break; 561 case HID_DG_CONTACTCOUNT: 562 /* 563 * Includes multi-packet support where subsequent 564 * packets are sent with zero contactcount. 565 */ 566 if (value) 567 td->num_expected = value; 568 break; 569 case HID_DG_TOUCH: 570 /* do nothing */ 571 break; 572 573 default: 574 /* fallback to the generic hidinput handling */ 575 return 0; 576 } 577 578 if (usage->hid == td->last_slot_field) 579 mt_complete_slot(td, field->hidinput->input); 580 581 if (field->index == td->last_field_index 582 && td->num_received >= td->num_expected) 583 mt_sync_frame(td, field->hidinput->input); 584 585 } 586 587 /* we have handled the hidinput part, now remains hiddev */ 588 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event) 589 hid->hiddev_hid_event(hid, field, usage, value); 590 591 return 1; 592 } 593 594 static void mt_set_input_mode(struct hid_device *hdev) 595 { 596 struct mt_device *td = hid_get_drvdata(hdev); 597 struct hid_report *r; 598 struct hid_report_enum *re; 599 600 if (td->inputmode < 0) 601 return; 602 603 re = &(hdev->report_enum[HID_FEATURE_REPORT]); 604 r = re->report_id_hash[td->inputmode]; 605 if (r) { 606 r->field[0]->value[td->inputmode_index] = 0x02; 607 usbhid_submit_report(hdev, r, USB_DIR_OUT); 608 } 609 } 610 611 static void mt_set_maxcontacts(struct hid_device *hdev) 612 { 613 struct mt_device *td = hid_get_drvdata(hdev); 614 struct hid_report *r; 615 struct hid_report_enum *re; 616 int fieldmax, max; 617 618 if (td->maxcontact_report_id < 0) 619 return; 620 621 if (!td->mtclass.maxcontacts) 622 return; 623 624 re = &hdev->report_enum[HID_FEATURE_REPORT]; 625 r = re->report_id_hash[td->maxcontact_report_id]; 626 if (r) { 627 max = td->mtclass.maxcontacts; 628 fieldmax = r->field[0]->logical_maximum; 629 max = min(fieldmax, max); 630 if (r->field[0]->value[0] != max) { 631 r->field[0]->value[0] = max; 632 usbhid_submit_report(hdev, r, USB_DIR_OUT); 633 } 634 } 635 } 636 637 static void mt_post_parse_default_settings(struct mt_device *td) 638 { 639 __s32 quirks = td->mtclass.quirks; 640 641 /* unknown serial device needs special quirks */ 642 if (td->touches_by_report == 1) { 643 quirks |= MT_QUIRK_ALWAYS_VALID; 644 quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP; 645 quirks &= ~MT_QUIRK_VALID_IS_INRANGE; 646 quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE; 647 } 648 649 td->mtclass.quirks = quirks; 650 } 651 652 static void mt_post_parse(struct mt_device *td) 653 { 654 struct mt_fields *f = td->fields; 655 656 if (td->touches_by_report > 0) { 657 int field_count_per_touch = f->length / td->touches_by_report; 658 td->last_slot_field = f->usages[field_count_per_touch - 1]; 659 } 660 } 661 662 static void mt_input_configured(struct hid_device *hdev, struct hid_input *hi) 663 664 { 665 struct mt_device *td = hid_get_drvdata(hdev); 666 struct mt_class *cls = &td->mtclass; 667 struct input_dev *input = hi->input; 668 669 /* Only initialize slots for MT input devices */ 670 if (!test_bit(ABS_MT_POSITION_X, input->absbit)) 671 return; 672 673 if (!td->maxcontacts) 674 td->maxcontacts = MT_DEFAULT_MAXCONTACT; 675 676 mt_post_parse(td); 677 if (td->serial_maybe) 678 mt_post_parse_default_settings(td); 679 680 if (cls->is_indirect) 681 td->mt_flags |= INPUT_MT_POINTER; 682 683 if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) 684 td->mt_flags |= INPUT_MT_DROP_UNUSED; 685 686 input_mt_init_slots(input, td->maxcontacts, td->mt_flags); 687 688 td->mt_flags = 0; 689 } 690 691 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) 692 { 693 int ret, i; 694 struct mt_device *td; 695 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */ 696 697 for (i = 0; mt_classes[i].name ; i++) { 698 if (id->driver_data == mt_classes[i].name) { 699 mtclass = &(mt_classes[i]); 700 break; 701 } 702 } 703 704 /* This allows the driver to correctly support devices 705 * that emit events over several HID messages. 706 */ 707 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC; 708 709 td = kzalloc(sizeof(struct mt_device), GFP_KERNEL); 710 if (!td) { 711 dev_err(&hdev->dev, "cannot allocate multitouch data\n"); 712 return -ENOMEM; 713 } 714 td->mtclass = *mtclass; 715 td->inputmode = -1; 716 td->maxcontact_report_id = -1; 717 hid_set_drvdata(hdev, td); 718 719 td->fields = kzalloc(sizeof(struct mt_fields), GFP_KERNEL); 720 if (!td->fields) { 721 dev_err(&hdev->dev, "cannot allocate multitouch fields data\n"); 722 ret = -ENOMEM; 723 goto fail; 724 } 725 726 if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID) 727 td->serial_maybe = true; 728 729 ret = hid_parse(hdev); 730 if (ret != 0) 731 goto fail; 732 733 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); 734 if (ret) 735 goto fail; 736 737 ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group); 738 739 mt_set_maxcontacts(hdev); 740 mt_set_input_mode(hdev); 741 742 kfree(td->fields); 743 td->fields = NULL; 744 745 return 0; 746 747 fail: 748 kfree(td->fields); 749 kfree(td); 750 return ret; 751 } 752 753 #ifdef CONFIG_PM 754 static int mt_reset_resume(struct hid_device *hdev) 755 { 756 mt_set_maxcontacts(hdev); 757 mt_set_input_mode(hdev); 758 return 0; 759 } 760 761 static int mt_resume(struct hid_device *hdev) 762 { 763 struct usb_interface *intf; 764 struct usb_host_interface *interface; 765 struct usb_device *dev; 766 767 if (hdev->bus != BUS_USB) 768 return 0; 769 770 intf = to_usb_interface(hdev->dev.parent); 771 interface = intf->cur_altsetting; 772 dev = hid_to_usb_dev(hdev); 773 774 /* Some Elan legacy devices require SET_IDLE to be set on resume. 775 * It should be safe to send it to other devices too. 776 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */ 777 778 usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 779 HID_REQ_SET_IDLE, 780 USB_TYPE_CLASS | USB_RECIP_INTERFACE, 781 0, interface->desc.bInterfaceNumber, 782 NULL, 0, USB_CTRL_SET_TIMEOUT); 783 784 return 0; 785 } 786 #endif 787 788 static void mt_remove(struct hid_device *hdev) 789 { 790 struct mt_device *td = hid_get_drvdata(hdev); 791 sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group); 792 hid_hw_stop(hdev); 793 kfree(td); 794 hid_set_drvdata(hdev, NULL); 795 } 796 797 static const struct hid_device_id mt_devices[] = { 798 799 /* 3M panels */ 800 { .driver_data = MT_CLS_3M, 801 MT_USB_DEVICE(USB_VENDOR_ID_3M, 802 USB_DEVICE_ID_3M1968) }, 803 { .driver_data = MT_CLS_3M, 804 MT_USB_DEVICE(USB_VENDOR_ID_3M, 805 USB_DEVICE_ID_3M2256) }, 806 { .driver_data = MT_CLS_3M, 807 MT_USB_DEVICE(USB_VENDOR_ID_3M, 808 USB_DEVICE_ID_3M3266) }, 809 810 /* ActionStar panels */ 811 { .driver_data = MT_CLS_DEFAULT, 812 MT_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR, 813 USB_DEVICE_ID_ACTIONSTAR_1011) }, 814 815 /* Atmel panels */ 816 { .driver_data = MT_CLS_SERIAL, 817 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL, 818 USB_DEVICE_ID_ATMEL_MULTITOUCH) }, 819 { .driver_data = MT_CLS_SERIAL, 820 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL, 821 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) }, 822 823 /* Baanto multitouch devices */ 824 { .driver_data = MT_CLS_DEFAULT, 825 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO, 826 USB_DEVICE_ID_BAANTO_MT_190W2) }, 827 /* Cando panels */ 828 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 829 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 830 USB_DEVICE_ID_CANDO_MULTI_TOUCH) }, 831 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 832 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 833 USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) }, 834 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 835 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 836 USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) }, 837 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 838 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 839 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) }, 840 841 /* Chunghwa Telecom touch panels */ 842 { .driver_data = MT_CLS_DEFAULT, 843 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT, 844 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) }, 845 846 /* CVTouch panels */ 847 { .driver_data = MT_CLS_DEFAULT, 848 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH, 849 USB_DEVICE_ID_CVTOUCH_SCREEN) }, 850 851 /* Cypress panel */ 852 { .driver_data = MT_CLS_CYPRESS, 853 HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, 854 USB_DEVICE_ID_CYPRESS_TRUETOUCH) }, 855 856 /* eGalax devices (resistive) */ 857 { .driver_data = MT_CLS_EGALAX, 858 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 859 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) }, 860 { .driver_data = MT_CLS_EGALAX, 861 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 862 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) }, 863 864 /* eGalax devices (capacitive) */ 865 { .driver_data = MT_CLS_EGALAX, 866 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 867 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) }, 868 { .driver_data = MT_CLS_EGALAX_SERIAL, 869 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 870 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) }, 871 { .driver_data = MT_CLS_EGALAX_SERIAL, 872 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 873 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) }, 874 { .driver_data = MT_CLS_EGALAX_SERIAL, 875 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 876 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) }, 877 { .driver_data = MT_CLS_EGALAX_SERIAL, 878 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 879 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) }, 880 { .driver_data = MT_CLS_EGALAX, 881 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 882 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) }, 883 { .driver_data = MT_CLS_EGALAX_SERIAL, 884 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 885 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) }, 886 { .driver_data = MT_CLS_EGALAX, 887 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 888 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) }, 889 { .driver_data = MT_CLS_EGALAX_SERIAL, 890 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 891 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) }, 892 { .driver_data = MT_CLS_EGALAX, 893 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 894 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) }, 895 { .driver_data = MT_CLS_EGALAX, 896 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 897 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) }, 898 { .driver_data = MT_CLS_EGALAX_SERIAL, 899 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 900 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) }, 901 { .driver_data = MT_CLS_EGALAX_SERIAL, 902 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 903 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) }, 904 { .driver_data = MT_CLS_EGALAX_SERIAL, 905 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 906 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) }, 907 { .driver_data = MT_CLS_EGALAX, 908 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 909 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) }, 910 { .driver_data = MT_CLS_EGALAX, 911 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 912 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) }, 913 { .driver_data = MT_CLS_EGALAX, 914 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 915 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) }, 916 917 /* Elo TouchSystems IntelliTouch Plus panel */ 918 { .driver_data = MT_CLS_DUAL_NSMU_CONTACTID, 919 MT_USB_DEVICE(USB_VENDOR_ID_ELO, 920 USB_DEVICE_ID_ELO_TS2515) }, 921 922 /* Flatfrog Panels */ 923 { .driver_data = MT_CLS_FLATFROG, 924 MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG, 925 USB_DEVICE_ID_MULTITOUCH_3200) }, 926 927 /* GeneralTouch panel */ 928 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS, 929 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 930 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) }, 931 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 932 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 933 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) }, 934 935 /* Gametel game controller */ 936 { .driver_data = MT_CLS_DEFAULT, 937 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL, 938 USB_DEVICE_ID_GAMETEL_MT_MODE) }, 939 940 /* GoodTouch panels */ 941 { .driver_data = MT_CLS_DEFAULT, 942 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH, 943 USB_DEVICE_ID_GOODTOUCH_000f) }, 944 945 /* Hanvon panels */ 946 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 947 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT, 948 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) }, 949 950 /* Ideacom panel */ 951 { .driver_data = MT_CLS_SERIAL, 952 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM, 953 USB_DEVICE_ID_IDEACOM_IDC6650) }, 954 { .driver_data = MT_CLS_SERIAL, 955 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM, 956 USB_DEVICE_ID_IDEACOM_IDC6651) }, 957 958 /* Ilitek dual touch panel */ 959 { .driver_data = MT_CLS_DEFAULT, 960 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK, 961 USB_DEVICE_ID_ILITEK_MULTITOUCH) }, 962 963 /* IRTOUCH panels */ 964 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 965 MT_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS, 966 USB_DEVICE_ID_IRTOUCH_INFRARED_USB) }, 967 968 /* LG Display panels */ 969 { .driver_data = MT_CLS_DEFAULT, 970 MT_USB_DEVICE(USB_VENDOR_ID_LG, 971 USB_DEVICE_ID_LG_MULTITOUCH) }, 972 973 /* Lumio panels */ 974 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 975 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO, 976 USB_DEVICE_ID_CRYSTALTOUCH) }, 977 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 978 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO, 979 USB_DEVICE_ID_CRYSTALTOUCH_DUAL) }, 980 981 /* MosArt panels */ 982 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 983 MT_USB_DEVICE(USB_VENDOR_ID_ASUS, 984 USB_DEVICE_ID_ASUS_T91MT)}, 985 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 986 MT_USB_DEVICE(USB_VENDOR_ID_ASUS, 987 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) }, 988 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 989 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX, 990 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) }, 991 992 /* Panasonic panels */ 993 { .driver_data = MT_CLS_PANASONIC, 994 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC, 995 USB_DEVICE_ID_PANABOARD_UBT780) }, 996 { .driver_data = MT_CLS_PANASONIC, 997 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC, 998 USB_DEVICE_ID_PANABOARD_UBT880) }, 999 1000 /* Novatek Panel */ 1001 { .driver_data = MT_CLS_DEFAULT, 1002 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK, 1003 USB_DEVICE_ID_NOVATEK_PCT) }, 1004 1005 /* PenMount panels */ 1006 { .driver_data = MT_CLS_CONFIDENCE, 1007 MT_USB_DEVICE(USB_VENDOR_ID_PENMOUNT, 1008 USB_DEVICE_ID_PENMOUNT_PCI) }, 1009 1010 /* PixArt optical touch screen */ 1011 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1012 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1013 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) }, 1014 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1015 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1016 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) }, 1017 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1018 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1019 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) }, 1020 1021 /* PixCir-based panels */ 1022 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 1023 MT_USB_DEVICE(USB_VENDOR_ID_HANVON, 1024 USB_DEVICE_ID_HANVON_MULTITOUCH) }, 1025 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 1026 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1027 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) }, 1028 1029 /* Quanta-based panels */ 1030 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID, 1031 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA, 1032 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) }, 1033 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID, 1034 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA, 1035 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) }, 1036 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID, 1037 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA, 1038 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008) }, 1039 1040 /* Stantum panels */ 1041 { .driver_data = MT_CLS_CONFIDENCE, 1042 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM, 1043 USB_DEVICE_ID_MTP)}, 1044 { .driver_data = MT_CLS_CONFIDENCE, 1045 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, 1046 USB_DEVICE_ID_MTP_STM)}, 1047 { .driver_data = MT_CLS_CONFIDENCE, 1048 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX, 1049 USB_DEVICE_ID_MTP_SITRONIX)}, 1050 1051 /* TopSeed panels */ 1052 { .driver_data = MT_CLS_TOPSEED, 1053 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, 1054 USB_DEVICE_ID_TOPSEED2_PERIPAD_701) }, 1055 1056 /* Touch International panels */ 1057 { .driver_data = MT_CLS_DEFAULT, 1058 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL, 1059 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) }, 1060 1061 /* Unitec panels */ 1062 { .driver_data = MT_CLS_DEFAULT, 1063 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC, 1064 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) }, 1065 { .driver_data = MT_CLS_DEFAULT, 1066 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC, 1067 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) }, 1068 /* XAT */ 1069 { .driver_data = MT_CLS_DEFAULT, 1070 MT_USB_DEVICE(USB_VENDOR_ID_XAT, 1071 USB_DEVICE_ID_XAT_CSR) }, 1072 1073 /* Xiroku */ 1074 { .driver_data = MT_CLS_DEFAULT, 1075 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1076 USB_DEVICE_ID_XIROKU_SPX) }, 1077 { .driver_data = MT_CLS_DEFAULT, 1078 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1079 USB_DEVICE_ID_XIROKU_MPX) }, 1080 { .driver_data = MT_CLS_DEFAULT, 1081 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1082 USB_DEVICE_ID_XIROKU_CSR) }, 1083 { .driver_data = MT_CLS_DEFAULT, 1084 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1085 USB_DEVICE_ID_XIROKU_SPX1) }, 1086 { .driver_data = MT_CLS_DEFAULT, 1087 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1088 USB_DEVICE_ID_XIROKU_MPX1) }, 1089 { .driver_data = MT_CLS_DEFAULT, 1090 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1091 USB_DEVICE_ID_XIROKU_CSR1) }, 1092 { .driver_data = MT_CLS_DEFAULT, 1093 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1094 USB_DEVICE_ID_XIROKU_SPX2) }, 1095 { .driver_data = MT_CLS_DEFAULT, 1096 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1097 USB_DEVICE_ID_XIROKU_MPX2) }, 1098 { .driver_data = MT_CLS_DEFAULT, 1099 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1100 USB_DEVICE_ID_XIROKU_CSR2) }, 1101 1102 /* Zytronic panels */ 1103 { .driver_data = MT_CLS_SERIAL, 1104 MT_USB_DEVICE(USB_VENDOR_ID_ZYTRONIC, 1105 USB_DEVICE_ID_ZYTRONIC_ZXY100) }, 1106 1107 /* Generic MT device */ 1108 { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) }, 1109 { } 1110 }; 1111 MODULE_DEVICE_TABLE(hid, mt_devices); 1112 1113 static const struct hid_usage_id mt_grabbed_usages[] = { 1114 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID }, 1115 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1} 1116 }; 1117 1118 static struct hid_driver mt_driver = { 1119 .name = "hid-multitouch", 1120 .id_table = mt_devices, 1121 .probe = mt_probe, 1122 .remove = mt_remove, 1123 .input_mapping = mt_input_mapping, 1124 .input_mapped = mt_input_mapped, 1125 .input_configured = mt_input_configured, 1126 .feature_mapping = mt_feature_mapping, 1127 .usage_table = mt_grabbed_usages, 1128 .event = mt_event, 1129 #ifdef CONFIG_PM 1130 .reset_resume = mt_reset_resume, 1131 .resume = mt_resume, 1132 #endif 1133 }; 1134 1135 static int __init mt_init(void) 1136 { 1137 return hid_register_driver(&mt_driver); 1138 } 1139 1140 static void __exit mt_exit(void) 1141 { 1142 hid_unregister_driver(&mt_driver); 1143 } 1144 1145 module_init(mt_init); 1146 module_exit(mt_exit); 1147