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 .maxcontacts = 10 215 }, 216 217 { .name = MT_CLS_FLATFROG, 218 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 219 MT_QUIRK_NO_AREA, 220 .sn_move = 2048, 221 .maxcontacts = 40, 222 }, 223 { } 224 }; 225 226 static ssize_t mt_show_quirks(struct device *dev, 227 struct device_attribute *attr, 228 char *buf) 229 { 230 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 231 struct mt_device *td = hid_get_drvdata(hdev); 232 233 return sprintf(buf, "%u\n", td->mtclass.quirks); 234 } 235 236 static ssize_t mt_set_quirks(struct device *dev, 237 struct device_attribute *attr, 238 const char *buf, size_t count) 239 { 240 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 241 struct mt_device *td = hid_get_drvdata(hdev); 242 243 unsigned long val; 244 245 if (kstrtoul(buf, 0, &val)) 246 return -EINVAL; 247 248 td->mtclass.quirks = val; 249 250 return count; 251 } 252 253 static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks); 254 255 static struct attribute *sysfs_attrs[] = { 256 &dev_attr_quirks.attr, 257 NULL 258 }; 259 260 static struct attribute_group mt_attribute_group = { 261 .attrs = sysfs_attrs 262 }; 263 264 static void mt_feature_mapping(struct hid_device *hdev, 265 struct hid_field *field, struct hid_usage *usage) 266 { 267 struct mt_device *td = hid_get_drvdata(hdev); 268 int i; 269 270 switch (usage->hid) { 271 case HID_DG_INPUTMODE: 272 td->inputmode = field->report->id; 273 td->inputmode_index = 0; /* has to be updated below */ 274 275 for (i=0; i < field->maxusage; i++) { 276 if (field->usage[i].hid == usage->hid) { 277 td->inputmode_index = i; 278 break; 279 } 280 } 281 282 break; 283 case HID_DG_CONTACTMAX: 284 td->maxcontact_report_id = field->report->id; 285 td->maxcontacts = field->value[0]; 286 if (td->mtclass.maxcontacts) 287 /* check if the maxcontacts is given by the class */ 288 td->maxcontacts = td->mtclass.maxcontacts; 289 290 break; 291 } 292 } 293 294 static void set_abs(struct input_dev *input, unsigned int code, 295 struct hid_field *field, int snratio) 296 { 297 int fmin = field->logical_minimum; 298 int fmax = field->logical_maximum; 299 int fuzz = snratio ? (fmax - fmin) / snratio : 0; 300 input_set_abs_params(input, code, fmin, fmax, fuzz, 0); 301 } 302 303 static void mt_store_field(struct hid_usage *usage, struct mt_device *td, 304 struct hid_input *hi) 305 { 306 struct mt_fields *f = td->fields; 307 308 if (f->length >= HID_MAX_FIELDS) 309 return; 310 311 f->usages[f->length++] = usage->hid; 312 } 313 314 static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi, 315 struct hid_field *field, struct hid_usage *usage, 316 unsigned long **bit, int *max) 317 { 318 struct mt_device *td = hid_get_drvdata(hdev); 319 struct mt_class *cls = &td->mtclass; 320 int code; 321 322 /* Only map fields from TouchScreen or TouchPad collections. 323 * We need to ignore fields that belong to other collections 324 * such as Mouse that might have the same GenericDesktop usages. */ 325 if (field->application == HID_DG_TOUCHSCREEN) 326 td->mt_flags |= INPUT_MT_DIRECT; 327 else if (field->application != HID_DG_TOUCHPAD) 328 return 0; 329 330 /* 331 * Model touchscreens providing buttons as touchpads. 332 */ 333 if (field->application == HID_DG_TOUCHPAD || 334 (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) 335 td->mt_flags |= INPUT_MT_POINTER; 336 337 /* eGalax devices provide a Digitizer.Stylus input which overrides 338 * the correct Digitizers.Finger X/Y ranges. 339 * Let's just ignore this input. */ 340 if (field->physical == HID_DG_STYLUS) 341 return -1; 342 343 switch (usage->hid & HID_USAGE_PAGE) { 344 345 case HID_UP_GENDESK: 346 switch (usage->hid) { 347 case HID_GD_X: 348 hid_map_usage(hi, usage, bit, max, 349 EV_ABS, ABS_MT_POSITION_X); 350 set_abs(hi->input, ABS_MT_POSITION_X, field, 351 cls->sn_move); 352 mt_store_field(usage, td, hi); 353 td->last_field_index = field->index; 354 return 1; 355 case HID_GD_Y: 356 hid_map_usage(hi, usage, bit, max, 357 EV_ABS, ABS_MT_POSITION_Y); 358 set_abs(hi->input, ABS_MT_POSITION_Y, field, 359 cls->sn_move); 360 mt_store_field(usage, td, hi); 361 td->last_field_index = field->index; 362 return 1; 363 } 364 return 0; 365 366 case HID_UP_DIGITIZER: 367 switch (usage->hid) { 368 case HID_DG_INRANGE: 369 mt_store_field(usage, td, hi); 370 td->last_field_index = field->index; 371 return 1; 372 case HID_DG_CONFIDENCE: 373 mt_store_field(usage, td, hi); 374 td->last_field_index = field->index; 375 return 1; 376 case HID_DG_TIPSWITCH: 377 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH); 378 input_set_capability(hi->input, EV_KEY, BTN_TOUCH); 379 mt_store_field(usage, td, hi); 380 td->last_field_index = field->index; 381 return 1; 382 case HID_DG_CONTACTID: 383 mt_store_field(usage, td, hi); 384 td->last_field_index = field->index; 385 td->touches_by_report++; 386 return 1; 387 case HID_DG_WIDTH: 388 hid_map_usage(hi, usage, bit, max, 389 EV_ABS, ABS_MT_TOUCH_MAJOR); 390 if (!(cls->quirks & MT_QUIRK_NO_AREA)) 391 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field, 392 cls->sn_width); 393 mt_store_field(usage, td, hi); 394 td->last_field_index = field->index; 395 return 1; 396 case HID_DG_HEIGHT: 397 hid_map_usage(hi, usage, bit, max, 398 EV_ABS, ABS_MT_TOUCH_MINOR); 399 if (!(cls->quirks & MT_QUIRK_NO_AREA)) { 400 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field, 401 cls->sn_height); 402 input_set_abs_params(hi->input, 403 ABS_MT_ORIENTATION, 0, 1, 0, 0); 404 } 405 mt_store_field(usage, td, hi); 406 td->last_field_index = field->index; 407 return 1; 408 case HID_DG_TIPPRESSURE: 409 hid_map_usage(hi, usage, bit, max, 410 EV_ABS, ABS_MT_PRESSURE); 411 set_abs(hi->input, ABS_MT_PRESSURE, field, 412 cls->sn_pressure); 413 mt_store_field(usage, td, hi); 414 td->last_field_index = field->index; 415 return 1; 416 case HID_DG_CONTACTCOUNT: 417 td->last_field_index = field->index; 418 return 1; 419 case HID_DG_CONTACTMAX: 420 /* we don't set td->last_slot_field as contactcount and 421 * contact max are global to the report */ 422 td->last_field_index = field->index; 423 return -1; 424 } 425 case HID_DG_TOUCH: 426 /* Legacy devices use TIPSWITCH and not TOUCH. 427 * Let's just ignore this field. */ 428 return -1; 429 /* let hid-input decide for the others */ 430 return 0; 431 432 case HID_UP_BUTTON: 433 code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE); 434 hid_map_usage(hi, usage, bit, max, EV_KEY, code); 435 input_set_capability(hi->input, EV_KEY, code); 436 return 1; 437 438 case 0xff000000: 439 /* we do not want to map these: no input-oriented meaning */ 440 return -1; 441 } 442 443 return 0; 444 } 445 446 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi, 447 struct hid_field *field, struct hid_usage *usage, 448 unsigned long **bit, int *max) 449 { 450 if (usage->type == EV_KEY || usage->type == EV_ABS) 451 set_bit(usage->type, hi->input->evbit); 452 453 return -1; 454 } 455 456 static int mt_compute_slot(struct mt_device *td, struct input_dev *input) 457 { 458 __s32 quirks = td->mtclass.quirks; 459 460 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID) 461 return td->curdata.contactid; 462 463 if (quirks & MT_QUIRK_CYPRESS) 464 return cypress_compute_slot(td); 465 466 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER) 467 return td->num_received; 468 469 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE) 470 return td->curdata.contactid - 1; 471 472 return input_mt_get_slot_by_key(input, td->curdata.contactid); 473 } 474 475 /* 476 * this function is called when a whole contact has been processed, 477 * so that it can assign it to a slot and store the data there 478 */ 479 static void mt_complete_slot(struct mt_device *td, struct input_dev *input) 480 { 481 if (td->curvalid) { 482 int slotnum = mt_compute_slot(td, input); 483 struct mt_slot *s = &td->curdata; 484 485 if (slotnum < 0 || slotnum >= td->maxcontacts) 486 return; 487 488 input_mt_slot(input, slotnum); 489 input_mt_report_slot_state(input, MT_TOOL_FINGER, 490 s->touch_state); 491 if (s->touch_state) { 492 /* this finger is on the screen */ 493 int wide = (s->w > s->h); 494 /* divided by two to match visual scale of touch */ 495 int major = max(s->w, s->h) >> 1; 496 int minor = min(s->w, s->h) >> 1; 497 498 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x); 499 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y); 500 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide); 501 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p); 502 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major); 503 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor); 504 } 505 } 506 507 td->num_received++; 508 } 509 510 /* 511 * this function is called when a whole packet has been received and processed, 512 * so that it can decide what to send to the input layer. 513 */ 514 static void mt_sync_frame(struct mt_device *td, struct input_dev *input) 515 { 516 input_mt_sync_frame(input); 517 input_sync(input); 518 td->num_received = 0; 519 } 520 521 static int mt_event(struct hid_device *hid, struct hid_field *field, 522 struct hid_usage *usage, __s32 value) 523 { 524 struct mt_device *td = hid_get_drvdata(hid); 525 __s32 quirks = td->mtclass.quirks; 526 527 if (hid->claimed & HID_CLAIMED_INPUT) { 528 switch (usage->hid) { 529 case HID_DG_INRANGE: 530 if (quirks & MT_QUIRK_ALWAYS_VALID) 531 td->curvalid = true; 532 else if (quirks & MT_QUIRK_VALID_IS_INRANGE) 533 td->curvalid = value; 534 break; 535 case HID_DG_TIPSWITCH: 536 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) 537 td->curvalid = value; 538 td->curdata.touch_state = value; 539 break; 540 case HID_DG_CONFIDENCE: 541 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE) 542 td->curvalid = value; 543 break; 544 case HID_DG_CONTACTID: 545 td->curdata.contactid = value; 546 break; 547 case HID_DG_TIPPRESSURE: 548 td->curdata.p = value; 549 break; 550 case HID_GD_X: 551 td->curdata.x = value; 552 break; 553 case HID_GD_Y: 554 td->curdata.y = value; 555 break; 556 case HID_DG_WIDTH: 557 td->curdata.w = value; 558 break; 559 case HID_DG_HEIGHT: 560 td->curdata.h = value; 561 break; 562 case HID_DG_CONTACTCOUNT: 563 /* 564 * Includes multi-packet support where subsequent 565 * packets are sent with zero contactcount. 566 */ 567 if (value) 568 td->num_expected = value; 569 break; 570 case HID_DG_TOUCH: 571 /* do nothing */ 572 break; 573 574 default: 575 /* fallback to the generic hidinput handling */ 576 return 0; 577 } 578 579 if (usage->hid == td->last_slot_field) 580 mt_complete_slot(td, field->hidinput->input); 581 582 if (field->index == td->last_field_index 583 && td->num_received >= td->num_expected) 584 mt_sync_frame(td, field->hidinput->input); 585 586 } 587 588 /* we have handled the hidinput part, now remains hiddev */ 589 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event) 590 hid->hiddev_hid_event(hid, field, usage, value); 591 592 return 1; 593 } 594 595 static void mt_set_input_mode(struct hid_device *hdev) 596 { 597 struct mt_device *td = hid_get_drvdata(hdev); 598 struct hid_report *r; 599 struct hid_report_enum *re; 600 601 if (td->inputmode < 0) 602 return; 603 604 re = &(hdev->report_enum[HID_FEATURE_REPORT]); 605 r = re->report_id_hash[td->inputmode]; 606 if (r) { 607 r->field[0]->value[td->inputmode_index] = 0x02; 608 usbhid_submit_report(hdev, r, USB_DIR_OUT); 609 } 610 } 611 612 static void mt_set_maxcontacts(struct hid_device *hdev) 613 { 614 struct mt_device *td = hid_get_drvdata(hdev); 615 struct hid_report *r; 616 struct hid_report_enum *re; 617 int fieldmax, max; 618 619 if (td->maxcontact_report_id < 0) 620 return; 621 622 if (!td->mtclass.maxcontacts) 623 return; 624 625 re = &hdev->report_enum[HID_FEATURE_REPORT]; 626 r = re->report_id_hash[td->maxcontact_report_id]; 627 if (r) { 628 max = td->mtclass.maxcontacts; 629 fieldmax = r->field[0]->logical_maximum; 630 max = min(fieldmax, max); 631 if (r->field[0]->value[0] != max) { 632 r->field[0]->value[0] = max; 633 usbhid_submit_report(hdev, r, USB_DIR_OUT); 634 } 635 } 636 } 637 638 static void mt_post_parse_default_settings(struct mt_device *td) 639 { 640 __s32 quirks = td->mtclass.quirks; 641 642 /* unknown serial device needs special quirks */ 643 if (td->touches_by_report == 1) { 644 quirks |= MT_QUIRK_ALWAYS_VALID; 645 quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP; 646 quirks &= ~MT_QUIRK_VALID_IS_INRANGE; 647 quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE; 648 } 649 650 td->mtclass.quirks = quirks; 651 } 652 653 static void mt_post_parse(struct mt_device *td) 654 { 655 struct mt_fields *f = td->fields; 656 657 if (td->touches_by_report > 0) { 658 int field_count_per_touch = f->length / td->touches_by_report; 659 td->last_slot_field = f->usages[field_count_per_touch - 1]; 660 } 661 } 662 663 static void mt_input_configured(struct hid_device *hdev, struct hid_input *hi) 664 665 { 666 struct mt_device *td = hid_get_drvdata(hdev); 667 struct mt_class *cls = &td->mtclass; 668 struct input_dev *input = hi->input; 669 670 /* Only initialize slots for MT input devices */ 671 if (!test_bit(ABS_MT_POSITION_X, input->absbit)) 672 return; 673 674 if (!td->maxcontacts) 675 td->maxcontacts = MT_DEFAULT_MAXCONTACT; 676 677 mt_post_parse(td); 678 if (td->serial_maybe) 679 mt_post_parse_default_settings(td); 680 681 if (cls->is_indirect) 682 td->mt_flags |= INPUT_MT_POINTER; 683 684 if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) 685 td->mt_flags |= INPUT_MT_DROP_UNUSED; 686 687 input_mt_init_slots(input, td->maxcontacts, td->mt_flags); 688 689 td->mt_flags = 0; 690 } 691 692 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) 693 { 694 int ret, i; 695 struct mt_device *td; 696 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */ 697 698 for (i = 0; mt_classes[i].name ; i++) { 699 if (id->driver_data == mt_classes[i].name) { 700 mtclass = &(mt_classes[i]); 701 break; 702 } 703 } 704 705 /* This allows the driver to correctly support devices 706 * that emit events over several HID messages. 707 */ 708 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC; 709 710 td = kzalloc(sizeof(struct mt_device), GFP_KERNEL); 711 if (!td) { 712 dev_err(&hdev->dev, "cannot allocate multitouch data\n"); 713 return -ENOMEM; 714 } 715 td->mtclass = *mtclass; 716 td->inputmode = -1; 717 td->maxcontact_report_id = -1; 718 hid_set_drvdata(hdev, td); 719 720 td->fields = kzalloc(sizeof(struct mt_fields), GFP_KERNEL); 721 if (!td->fields) { 722 dev_err(&hdev->dev, "cannot allocate multitouch fields data\n"); 723 ret = -ENOMEM; 724 goto fail; 725 } 726 727 if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID) 728 td->serial_maybe = true; 729 730 ret = hid_parse(hdev); 731 if (ret != 0) 732 goto fail; 733 734 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); 735 if (ret) 736 goto fail; 737 738 ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group); 739 740 mt_set_maxcontacts(hdev); 741 mt_set_input_mode(hdev); 742 743 kfree(td->fields); 744 td->fields = NULL; 745 746 return 0; 747 748 fail: 749 kfree(td->fields); 750 kfree(td); 751 return ret; 752 } 753 754 #ifdef CONFIG_PM 755 static int mt_reset_resume(struct hid_device *hdev) 756 { 757 mt_set_maxcontacts(hdev); 758 mt_set_input_mode(hdev); 759 return 0; 760 } 761 762 static int mt_resume(struct hid_device *hdev) 763 { 764 struct usb_interface *intf; 765 struct usb_host_interface *interface; 766 struct usb_device *dev; 767 768 if (hdev->bus != BUS_USB) 769 return 0; 770 771 intf = to_usb_interface(hdev->dev.parent); 772 interface = intf->cur_altsetting; 773 dev = hid_to_usb_dev(hdev); 774 775 /* Some Elan legacy devices require SET_IDLE to be set on resume. 776 * It should be safe to send it to other devices too. 777 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */ 778 779 usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 780 HID_REQ_SET_IDLE, 781 USB_TYPE_CLASS | USB_RECIP_INTERFACE, 782 0, interface->desc.bInterfaceNumber, 783 NULL, 0, USB_CTRL_SET_TIMEOUT); 784 785 return 0; 786 } 787 #endif 788 789 static void mt_remove(struct hid_device *hdev) 790 { 791 struct mt_device *td = hid_get_drvdata(hdev); 792 sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group); 793 hid_hw_stop(hdev); 794 kfree(td); 795 hid_set_drvdata(hdev, NULL); 796 } 797 798 static const struct hid_device_id mt_devices[] = { 799 800 /* 3M panels */ 801 { .driver_data = MT_CLS_3M, 802 MT_USB_DEVICE(USB_VENDOR_ID_3M, 803 USB_DEVICE_ID_3M1968) }, 804 { .driver_data = MT_CLS_3M, 805 MT_USB_DEVICE(USB_VENDOR_ID_3M, 806 USB_DEVICE_ID_3M2256) }, 807 { .driver_data = MT_CLS_3M, 808 MT_USB_DEVICE(USB_VENDOR_ID_3M, 809 USB_DEVICE_ID_3M3266) }, 810 811 /* ActionStar panels */ 812 { .driver_data = MT_CLS_DEFAULT, 813 MT_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR, 814 USB_DEVICE_ID_ACTIONSTAR_1011) }, 815 816 /* Atmel panels */ 817 { .driver_data = MT_CLS_SERIAL, 818 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL, 819 USB_DEVICE_ID_ATMEL_MULTITOUCH) }, 820 { .driver_data = MT_CLS_SERIAL, 821 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL, 822 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) }, 823 824 /* Baanto multitouch devices */ 825 { .driver_data = MT_CLS_DEFAULT, 826 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO, 827 USB_DEVICE_ID_BAANTO_MT_190W2) }, 828 /* Cando panels */ 829 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 830 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 831 USB_DEVICE_ID_CANDO_MULTI_TOUCH) }, 832 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 833 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 834 USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) }, 835 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 836 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 837 USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) }, 838 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 839 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 840 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) }, 841 842 /* Chunghwa Telecom touch panels */ 843 { .driver_data = MT_CLS_DEFAULT, 844 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT, 845 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) }, 846 847 /* CVTouch panels */ 848 { .driver_data = MT_CLS_DEFAULT, 849 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH, 850 USB_DEVICE_ID_CVTOUCH_SCREEN) }, 851 852 /* Cypress panel */ 853 { .driver_data = MT_CLS_CYPRESS, 854 HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, 855 USB_DEVICE_ID_CYPRESS_TRUETOUCH) }, 856 857 /* eGalax devices (resistive) */ 858 { .driver_data = MT_CLS_EGALAX, 859 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 860 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) }, 861 { .driver_data = MT_CLS_EGALAX, 862 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 863 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) }, 864 865 /* eGalax devices (capacitive) */ 866 { .driver_data = MT_CLS_EGALAX, 867 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 868 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) }, 869 { .driver_data = MT_CLS_EGALAX_SERIAL, 870 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 871 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) }, 872 { .driver_data = MT_CLS_EGALAX_SERIAL, 873 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 874 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) }, 875 { .driver_data = MT_CLS_EGALAX_SERIAL, 876 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 877 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) }, 878 { .driver_data = MT_CLS_EGALAX_SERIAL, 879 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 880 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) }, 881 { .driver_data = MT_CLS_EGALAX, 882 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 883 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) }, 884 { .driver_data = MT_CLS_EGALAX_SERIAL, 885 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 886 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) }, 887 { .driver_data = MT_CLS_EGALAX, 888 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 889 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) }, 890 { .driver_data = MT_CLS_EGALAX_SERIAL, 891 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 892 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) }, 893 { .driver_data = MT_CLS_EGALAX, 894 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 895 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) }, 896 { .driver_data = MT_CLS_EGALAX, 897 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 898 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) }, 899 { .driver_data = MT_CLS_EGALAX_SERIAL, 900 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 901 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) }, 902 { .driver_data = MT_CLS_EGALAX_SERIAL, 903 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 904 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) }, 905 { .driver_data = MT_CLS_EGALAX_SERIAL, 906 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 907 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) }, 908 { .driver_data = MT_CLS_EGALAX, 909 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 910 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) }, 911 { .driver_data = MT_CLS_EGALAX, 912 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 913 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) }, 914 { .driver_data = MT_CLS_EGALAX, 915 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 916 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) }, 917 918 /* Elo TouchSystems IntelliTouch Plus panel */ 919 { .driver_data = MT_CLS_DUAL_NSMU_CONTACTID, 920 MT_USB_DEVICE(USB_VENDOR_ID_ELO, 921 USB_DEVICE_ID_ELO_TS2515) }, 922 923 /* Flatfrog Panels */ 924 { .driver_data = MT_CLS_FLATFROG, 925 MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG, 926 USB_DEVICE_ID_MULTITOUCH_3200) }, 927 928 /* GeneralTouch panel */ 929 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS, 930 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 931 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) }, 932 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 933 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 934 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) }, 935 936 /* Gametel game controller */ 937 { .driver_data = MT_CLS_DEFAULT, 938 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL, 939 USB_DEVICE_ID_GAMETEL_MT_MODE) }, 940 941 /* GoodTouch panels */ 942 { .driver_data = MT_CLS_DEFAULT, 943 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH, 944 USB_DEVICE_ID_GOODTOUCH_000f) }, 945 946 /* Hanvon panels */ 947 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 948 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT, 949 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) }, 950 951 /* Ideacom panel */ 952 { .driver_data = MT_CLS_SERIAL, 953 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM, 954 USB_DEVICE_ID_IDEACOM_IDC6650) }, 955 { .driver_data = MT_CLS_SERIAL, 956 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM, 957 USB_DEVICE_ID_IDEACOM_IDC6651) }, 958 959 /* Ilitek dual touch panel */ 960 { .driver_data = MT_CLS_DEFAULT, 961 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK, 962 USB_DEVICE_ID_ILITEK_MULTITOUCH) }, 963 964 /* IRTOUCH panels */ 965 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 966 MT_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS, 967 USB_DEVICE_ID_IRTOUCH_INFRARED_USB) }, 968 969 /* LG Display panels */ 970 { .driver_data = MT_CLS_DEFAULT, 971 MT_USB_DEVICE(USB_VENDOR_ID_LG, 972 USB_DEVICE_ID_LG_MULTITOUCH) }, 973 974 /* Lumio panels */ 975 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 976 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO, 977 USB_DEVICE_ID_CRYSTALTOUCH) }, 978 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 979 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO, 980 USB_DEVICE_ID_CRYSTALTOUCH_DUAL) }, 981 982 /* MosArt panels */ 983 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 984 MT_USB_DEVICE(USB_VENDOR_ID_ASUS, 985 USB_DEVICE_ID_ASUS_T91MT)}, 986 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 987 MT_USB_DEVICE(USB_VENDOR_ID_ASUS, 988 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) }, 989 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 990 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX, 991 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) }, 992 993 /* Panasonic panels */ 994 { .driver_data = MT_CLS_PANASONIC, 995 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC, 996 USB_DEVICE_ID_PANABOARD_UBT780) }, 997 { .driver_data = MT_CLS_PANASONIC, 998 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC, 999 USB_DEVICE_ID_PANABOARD_UBT880) }, 1000 1001 /* Novatek Panel */ 1002 { .driver_data = MT_CLS_DEFAULT, 1003 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK, 1004 USB_DEVICE_ID_NOVATEK_PCT) }, 1005 1006 /* PenMount panels */ 1007 { .driver_data = MT_CLS_CONFIDENCE, 1008 MT_USB_DEVICE(USB_VENDOR_ID_PENMOUNT, 1009 USB_DEVICE_ID_PENMOUNT_PCI) }, 1010 1011 /* PixArt optical touch screen */ 1012 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1013 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1014 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) }, 1015 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1016 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1017 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) }, 1018 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1019 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1020 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) }, 1021 1022 /* PixCir-based panels */ 1023 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 1024 MT_USB_DEVICE(USB_VENDOR_ID_HANVON, 1025 USB_DEVICE_ID_HANVON_MULTITOUCH) }, 1026 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 1027 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1028 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) }, 1029 1030 /* Quanta-based panels */ 1031 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID, 1032 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA, 1033 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) }, 1034 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID, 1035 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA, 1036 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) }, 1037 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID, 1038 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA, 1039 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008) }, 1040 1041 /* Stantum panels */ 1042 { .driver_data = MT_CLS_CONFIDENCE, 1043 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM, 1044 USB_DEVICE_ID_MTP)}, 1045 { .driver_data = MT_CLS_CONFIDENCE, 1046 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, 1047 USB_DEVICE_ID_MTP_STM)}, 1048 { .driver_data = MT_CLS_CONFIDENCE, 1049 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX, 1050 USB_DEVICE_ID_MTP_SITRONIX)}, 1051 1052 /* TopSeed panels */ 1053 { .driver_data = MT_CLS_TOPSEED, 1054 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, 1055 USB_DEVICE_ID_TOPSEED2_PERIPAD_701) }, 1056 1057 /* Touch International panels */ 1058 { .driver_data = MT_CLS_DEFAULT, 1059 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL, 1060 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) }, 1061 1062 /* Unitec panels */ 1063 { .driver_data = MT_CLS_DEFAULT, 1064 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC, 1065 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) }, 1066 { .driver_data = MT_CLS_DEFAULT, 1067 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC, 1068 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) }, 1069 /* XAT */ 1070 { .driver_data = MT_CLS_DEFAULT, 1071 MT_USB_DEVICE(USB_VENDOR_ID_XAT, 1072 USB_DEVICE_ID_XAT_CSR) }, 1073 1074 /* Xiroku */ 1075 { .driver_data = MT_CLS_DEFAULT, 1076 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1077 USB_DEVICE_ID_XIROKU_SPX) }, 1078 { .driver_data = MT_CLS_DEFAULT, 1079 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1080 USB_DEVICE_ID_XIROKU_MPX) }, 1081 { .driver_data = MT_CLS_DEFAULT, 1082 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1083 USB_DEVICE_ID_XIROKU_CSR) }, 1084 { .driver_data = MT_CLS_DEFAULT, 1085 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1086 USB_DEVICE_ID_XIROKU_SPX1) }, 1087 { .driver_data = MT_CLS_DEFAULT, 1088 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1089 USB_DEVICE_ID_XIROKU_MPX1) }, 1090 { .driver_data = MT_CLS_DEFAULT, 1091 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1092 USB_DEVICE_ID_XIROKU_CSR1) }, 1093 { .driver_data = MT_CLS_DEFAULT, 1094 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1095 USB_DEVICE_ID_XIROKU_SPX2) }, 1096 { .driver_data = MT_CLS_DEFAULT, 1097 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1098 USB_DEVICE_ID_XIROKU_MPX2) }, 1099 { .driver_data = MT_CLS_DEFAULT, 1100 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1101 USB_DEVICE_ID_XIROKU_CSR2) }, 1102 1103 /* Zytronic panels */ 1104 { .driver_data = MT_CLS_SERIAL, 1105 MT_USB_DEVICE(USB_VENDOR_ID_ZYTRONIC, 1106 USB_DEVICE_ID_ZYTRONIC_ZXY100) }, 1107 1108 /* Generic MT device */ 1109 { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) }, 1110 { } 1111 }; 1112 MODULE_DEVICE_TABLE(hid, mt_devices); 1113 1114 static const struct hid_usage_id mt_grabbed_usages[] = { 1115 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID }, 1116 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1} 1117 }; 1118 1119 static struct hid_driver mt_driver = { 1120 .name = "hid-multitouch", 1121 .id_table = mt_devices, 1122 .probe = mt_probe, 1123 .remove = mt_remove, 1124 .input_mapping = mt_input_mapping, 1125 .input_mapped = mt_input_mapped, 1126 .input_configured = mt_input_configured, 1127 .feature_mapping = mt_feature_mapping, 1128 .usage_table = mt_grabbed_usages, 1129 .event = mt_event, 1130 #ifdef CONFIG_PM 1131 .reset_resume = mt_reset_resume, 1132 .resume = mt_resume, 1133 #endif 1134 }; 1135 1136 static int __init mt_init(void) 1137 { 1138 return hid_register_driver(&mt_driver); 1139 } 1140 1141 static void __exit mt_exit(void) 1142 { 1143 hid_unregister_driver(&mt_driver); 1144 } 1145 1146 module_init(mt_init); 1147 module_exit(mt_exit); 1148