1 /* 2 * HID driver for multitouch panels 3 * 4 * Copyright (c) 2010-2012 Stephane Chatty <chatty@enac.fr> 5 * Copyright (c) 2010-2013 Benjamin Tissoires <benjamin.tissoires@gmail.com> 6 * Copyright (c) 2010-2012 Ecole Nationale de l'Aviation Civile, France 7 * Copyright (c) 2012-2013 Red Hat, Inc 8 * 9 * This code is partly based on hid-egalax.c: 10 * 11 * Copyright (c) 2010 Stephane Chatty <chatty@enac.fr> 12 * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se> 13 * Copyright (c) 2010 Canonical, Ltd. 14 * 15 * This code is partly based on hid-3m-pct.c: 16 * 17 * Copyright (c) 2009-2010 Stephane Chatty <chatty@enac.fr> 18 * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se> 19 * Copyright (c) 2010 Canonical, Ltd. 20 * 21 */ 22 23 /* 24 * This program is free software; you can redistribute it and/or modify it 25 * under the terms of the GNU General Public License as published by the Free 26 * Software Foundation; either version 2 of the License, or (at your option) 27 * any later version. 28 */ 29 30 /* 31 * This driver is regularly tested thanks to the tool hid-test[1]. 32 * This tool relies on hid-replay[2] and a database of hid devices[3]. 33 * Please run these regression tests before patching this module so that 34 * your patch won't break existing known devices. 35 * 36 * [1] https://github.com/bentiss/hid-test 37 * [2] https://github.com/bentiss/hid-replay 38 * [3] https://github.com/bentiss/hid-devices 39 */ 40 41 #include <linux/device.h> 42 #include <linux/hid.h> 43 #include <linux/module.h> 44 #include <linux/slab.h> 45 #include <linux/usb.h> 46 #include <linux/input/mt.h> 47 #include <linux/string.h> 48 49 50 MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>"); 51 MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>"); 52 MODULE_DESCRIPTION("HID multitouch panels"); 53 MODULE_LICENSE("GPL"); 54 55 #include "hid-ids.h" 56 57 /* quirks to control the device */ 58 #define MT_QUIRK_NOT_SEEN_MEANS_UP (1 << 0) 59 #define MT_QUIRK_SLOT_IS_CONTACTID (1 << 1) 60 #define MT_QUIRK_CYPRESS (1 << 2) 61 #define MT_QUIRK_SLOT_IS_CONTACTNUMBER (1 << 3) 62 #define MT_QUIRK_ALWAYS_VALID (1 << 4) 63 #define MT_QUIRK_VALID_IS_INRANGE (1 << 5) 64 #define MT_QUIRK_VALID_IS_CONFIDENCE (1 << 6) 65 #define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE (1 << 8) 66 #define MT_QUIRK_NO_AREA (1 << 9) 67 #define MT_QUIRK_IGNORE_DUPLICATES (1 << 10) 68 #define MT_QUIRK_HOVERING (1 << 11) 69 #define MT_QUIRK_CONTACT_CNT_ACCURATE (1 << 12) 70 71 struct mt_slot { 72 __s32 x, y, cx, cy, p, w, h; 73 __s32 contactid; /* the device ContactID assigned to this slot */ 74 bool touch_state; /* is the touch valid? */ 75 bool inrange_state; /* is the finger in proximity of the sensor? */ 76 }; 77 78 struct mt_class { 79 __s32 name; /* MT_CLS */ 80 __s32 quirks; 81 __s32 sn_move; /* Signal/noise ratio for move events */ 82 __s32 sn_width; /* Signal/noise ratio for width events */ 83 __s32 sn_height; /* Signal/noise ratio for height events */ 84 __s32 sn_pressure; /* Signal/noise ratio for pressure events */ 85 __u8 maxcontacts; 86 bool is_indirect; /* true for touchpads */ 87 }; 88 89 struct mt_fields { 90 unsigned usages[HID_MAX_FIELDS]; 91 unsigned int length; 92 }; 93 94 struct mt_device { 95 struct mt_slot curdata; /* placeholder of incoming data */ 96 struct mt_class mtclass; /* our mt device class */ 97 struct mt_fields *fields; /* temporary placeholder for storing the 98 multitouch fields */ 99 int cc_index; /* contact count field index in the report */ 100 int cc_value_index; /* contact count value index in the field */ 101 unsigned last_slot_field; /* the last field of a slot */ 102 unsigned mt_report_id; /* the report ID of the multitouch device */ 103 unsigned pen_report_id; /* the report ID of the pen device */ 104 __s8 inputmode; /* InputMode HID feature, -1 if non-existent */ 105 __s8 inputmode_index; /* InputMode HID feature index in the report */ 106 __s8 maxcontact_report_id; /* Maximum Contact Number HID feature, 107 -1 if non-existent */ 108 __u8 num_received; /* how many contacts we received */ 109 __u8 num_expected; /* expected last contact index */ 110 __u8 maxcontacts; 111 __u8 touches_by_report; /* how many touches are present in one report: 112 * 1 means we should use a serial protocol 113 * > 1 means hybrid (multitouch) protocol */ 114 bool serial_maybe; /* need to check for serial protocol */ 115 bool curvalid; /* is the current contact valid? */ 116 unsigned mt_flags; /* flags to pass to input-mt */ 117 }; 118 119 static void mt_post_parse_default_settings(struct mt_device *td); 120 static void mt_post_parse(struct mt_device *td); 121 122 /* classes of device behavior */ 123 #define MT_CLS_DEFAULT 0x0001 124 125 #define MT_CLS_SERIAL 0x0002 126 #define MT_CLS_CONFIDENCE 0x0003 127 #define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004 128 #define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005 129 #define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006 130 #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007 131 #define MT_CLS_DUAL_NSMU_CONTACTID 0x0008 132 #define MT_CLS_INRANGE_CONTACTNUMBER 0x0009 133 #define MT_CLS_NSMU 0x000a 134 #define MT_CLS_DUAL_CONTACT_NUMBER 0x0010 135 #define MT_CLS_DUAL_CONTACT_ID 0x0011 136 137 /* vendor specific classes */ 138 #define MT_CLS_3M 0x0101 139 #define MT_CLS_CYPRESS 0x0102 140 #define MT_CLS_EGALAX 0x0103 141 #define MT_CLS_EGALAX_SERIAL 0x0104 142 #define MT_CLS_TOPSEED 0x0105 143 #define MT_CLS_PANASONIC 0x0106 144 #define MT_CLS_FLATFROG 0x0107 145 #define MT_CLS_GENERALTOUCH_TWOFINGERS 0x0108 146 #define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109 147 148 #define MT_DEFAULT_MAXCONTACT 10 149 #define MT_MAX_MAXCONTACT 250 150 151 #define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p) 152 #define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p) 153 154 /* 155 * these device-dependent functions determine what slot corresponds 156 * to a valid contact that was just read. 157 */ 158 159 static int cypress_compute_slot(struct mt_device *td) 160 { 161 if (td->curdata.contactid != 0 || td->num_received == 0) 162 return td->curdata.contactid; 163 else 164 return -1; 165 } 166 167 static struct mt_class mt_classes[] = { 168 { .name = MT_CLS_DEFAULT, 169 .quirks = MT_QUIRK_ALWAYS_VALID | 170 MT_QUIRK_CONTACT_CNT_ACCURATE }, 171 { .name = MT_CLS_NSMU, 172 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP }, 173 { .name = MT_CLS_SERIAL, 174 .quirks = MT_QUIRK_ALWAYS_VALID}, 175 { .name = MT_CLS_CONFIDENCE, 176 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE }, 177 { .name = MT_CLS_CONFIDENCE_CONTACT_ID, 178 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 179 MT_QUIRK_SLOT_IS_CONTACTID }, 180 { .name = MT_CLS_CONFIDENCE_MINUS_ONE, 181 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 182 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE }, 183 { .name = MT_CLS_DUAL_INRANGE_CONTACTID, 184 .quirks = MT_QUIRK_VALID_IS_INRANGE | 185 MT_QUIRK_SLOT_IS_CONTACTID, 186 .maxcontacts = 2 }, 187 { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 188 .quirks = MT_QUIRK_VALID_IS_INRANGE | 189 MT_QUIRK_SLOT_IS_CONTACTNUMBER, 190 .maxcontacts = 2 }, 191 { .name = MT_CLS_DUAL_NSMU_CONTACTID, 192 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 193 MT_QUIRK_SLOT_IS_CONTACTID, 194 .maxcontacts = 2 }, 195 { .name = MT_CLS_INRANGE_CONTACTNUMBER, 196 .quirks = MT_QUIRK_VALID_IS_INRANGE | 197 MT_QUIRK_SLOT_IS_CONTACTNUMBER }, 198 { .name = MT_CLS_DUAL_CONTACT_NUMBER, 199 .quirks = MT_QUIRK_ALWAYS_VALID | 200 MT_QUIRK_CONTACT_CNT_ACCURATE | 201 MT_QUIRK_SLOT_IS_CONTACTNUMBER, 202 .maxcontacts = 2 }, 203 { .name = MT_CLS_DUAL_CONTACT_ID, 204 .quirks = MT_QUIRK_ALWAYS_VALID | 205 MT_QUIRK_CONTACT_CNT_ACCURATE | 206 MT_QUIRK_SLOT_IS_CONTACTID, 207 .maxcontacts = 2 }, 208 209 /* 210 * vendor specific classes 211 */ 212 { .name = MT_CLS_3M, 213 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 214 MT_QUIRK_SLOT_IS_CONTACTID, 215 .sn_move = 2048, 216 .sn_width = 128, 217 .sn_height = 128, 218 .maxcontacts = 60, 219 }, 220 { .name = MT_CLS_CYPRESS, 221 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 222 MT_QUIRK_CYPRESS, 223 .maxcontacts = 10 }, 224 { .name = MT_CLS_EGALAX, 225 .quirks = MT_QUIRK_SLOT_IS_CONTACTID | 226 MT_QUIRK_VALID_IS_INRANGE, 227 .sn_move = 4096, 228 .sn_pressure = 32, 229 }, 230 { .name = MT_CLS_EGALAX_SERIAL, 231 .quirks = MT_QUIRK_SLOT_IS_CONTACTID | 232 MT_QUIRK_ALWAYS_VALID, 233 .sn_move = 4096, 234 .sn_pressure = 32, 235 }, 236 { .name = MT_CLS_TOPSEED, 237 .quirks = MT_QUIRK_ALWAYS_VALID, 238 .is_indirect = true, 239 .maxcontacts = 2, 240 }, 241 { .name = MT_CLS_PANASONIC, 242 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP, 243 .maxcontacts = 4 }, 244 { .name = MT_CLS_GENERALTOUCH_TWOFINGERS, 245 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 246 MT_QUIRK_VALID_IS_INRANGE | 247 MT_QUIRK_SLOT_IS_CONTACTNUMBER, 248 .maxcontacts = 2 249 }, 250 { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 251 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 252 MT_QUIRK_SLOT_IS_CONTACTNUMBER 253 }, 254 255 { .name = MT_CLS_FLATFROG, 256 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 257 MT_QUIRK_NO_AREA, 258 .sn_move = 2048, 259 .maxcontacts = 40, 260 }, 261 { } 262 }; 263 264 static void mt_free_input_name(struct hid_input *hi) 265 { 266 struct hid_device *hdev = hi->report->device; 267 const char *name = hi->input->name; 268 269 if (name != hdev->name) { 270 hi->input->name = hdev->name; 271 kfree(name); 272 } 273 } 274 275 static ssize_t mt_show_quirks(struct device *dev, 276 struct device_attribute *attr, 277 char *buf) 278 { 279 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 280 struct mt_device *td = hid_get_drvdata(hdev); 281 282 return sprintf(buf, "%u\n", td->mtclass.quirks); 283 } 284 285 static ssize_t mt_set_quirks(struct device *dev, 286 struct device_attribute *attr, 287 const char *buf, size_t count) 288 { 289 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 290 struct mt_device *td = hid_get_drvdata(hdev); 291 292 unsigned long val; 293 294 if (kstrtoul(buf, 0, &val)) 295 return -EINVAL; 296 297 td->mtclass.quirks = val; 298 299 if (td->cc_index < 0) 300 td->mtclass.quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; 301 302 return count; 303 } 304 305 static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks); 306 307 static struct attribute *sysfs_attrs[] = { 308 &dev_attr_quirks.attr, 309 NULL 310 }; 311 312 static struct attribute_group mt_attribute_group = { 313 .attrs = sysfs_attrs 314 }; 315 316 static void mt_feature_mapping(struct hid_device *hdev, 317 struct hid_field *field, struct hid_usage *usage) 318 { 319 struct mt_device *td = hid_get_drvdata(hdev); 320 int i; 321 322 switch (usage->hid) { 323 case HID_DG_INPUTMODE: 324 td->inputmode = field->report->id; 325 td->inputmode_index = 0; /* has to be updated below */ 326 327 for (i=0; i < field->maxusage; i++) { 328 if (field->usage[i].hid == usage->hid) { 329 td->inputmode_index = i; 330 break; 331 } 332 } 333 334 break; 335 case HID_DG_CONTACTMAX: 336 td->maxcontact_report_id = field->report->id; 337 td->maxcontacts = field->value[0]; 338 if (!td->maxcontacts && 339 field->logical_maximum <= MT_MAX_MAXCONTACT) 340 td->maxcontacts = field->logical_maximum; 341 if (td->mtclass.maxcontacts) 342 /* check if the maxcontacts is given by the class */ 343 td->maxcontacts = td->mtclass.maxcontacts; 344 345 break; 346 case 0xff0000c5: 347 if (field->report_count == 256 && field->report_size == 8) { 348 /* Win 8 devices need special quirks */ 349 __s32 *quirks = &td->mtclass.quirks; 350 *quirks |= MT_QUIRK_ALWAYS_VALID; 351 *quirks |= MT_QUIRK_IGNORE_DUPLICATES; 352 *quirks |= MT_QUIRK_HOVERING; 353 *quirks |= MT_QUIRK_CONTACT_CNT_ACCURATE; 354 *quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP; 355 *quirks &= ~MT_QUIRK_VALID_IS_INRANGE; 356 *quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE; 357 } 358 break; 359 } 360 } 361 362 static void set_abs(struct input_dev *input, unsigned int code, 363 struct hid_field *field, int snratio) 364 { 365 int fmin = field->logical_minimum; 366 int fmax = field->logical_maximum; 367 int fuzz = snratio ? (fmax - fmin) / snratio : 0; 368 input_set_abs_params(input, code, fmin, fmax, fuzz, 0); 369 input_abs_set_res(input, code, hidinput_calc_abs_res(field, code)); 370 } 371 372 static void mt_store_field(struct hid_usage *usage, struct mt_device *td, 373 struct hid_input *hi) 374 { 375 struct mt_fields *f = td->fields; 376 377 if (f->length >= HID_MAX_FIELDS) 378 return; 379 380 f->usages[f->length++] = usage->hid; 381 } 382 383 static int mt_pen_input_mapping(struct hid_device *hdev, struct hid_input *hi, 384 struct hid_field *field, struct hid_usage *usage, 385 unsigned long **bit, int *max) 386 { 387 struct mt_device *td = hid_get_drvdata(hdev); 388 389 td->pen_report_id = field->report->id; 390 391 return 0; 392 } 393 394 static int mt_pen_input_mapped(struct hid_device *hdev, struct hid_input *hi, 395 struct hid_field *field, struct hid_usage *usage, 396 unsigned long **bit, int *max) 397 { 398 return 0; 399 } 400 401 static int mt_pen_event(struct hid_device *hid, struct hid_field *field, 402 struct hid_usage *usage, __s32 value) 403 { 404 /* let hid-input handle it */ 405 return 0; 406 } 407 408 static void mt_pen_report(struct hid_device *hid, struct hid_report *report) 409 { 410 struct hid_field *field = report->field[0]; 411 412 input_sync(field->hidinput->input); 413 } 414 415 static void mt_pen_input_configured(struct hid_device *hdev, 416 struct hid_input *hi) 417 { 418 char *name = kzalloc(strlen(hi->input->name) + 5, GFP_KERNEL); 419 if (name) { 420 sprintf(name, "%s Pen", hi->input->name); 421 mt_free_input_name(hi); 422 hi->input->name = name; 423 } 424 425 /* force BTN_STYLUS to allow tablet matching in udev */ 426 __set_bit(BTN_STYLUS, hi->input->keybit); 427 } 428 429 static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi, 430 struct hid_field *field, struct hid_usage *usage, 431 unsigned long **bit, int *max) 432 { 433 struct mt_device *td = hid_get_drvdata(hdev); 434 struct mt_class *cls = &td->mtclass; 435 int code; 436 struct hid_usage *prev_usage = NULL; 437 438 if (field->application == HID_DG_TOUCHSCREEN) 439 td->mt_flags |= INPUT_MT_DIRECT; 440 441 /* 442 * Model touchscreens providing buttons as touchpads. 443 */ 444 if (field->application == HID_DG_TOUCHPAD || 445 (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) 446 td->mt_flags |= INPUT_MT_POINTER; 447 448 if (usage->usage_index) 449 prev_usage = &field->usage[usage->usage_index - 1]; 450 451 switch (usage->hid & HID_USAGE_PAGE) { 452 453 case HID_UP_GENDESK: 454 switch (usage->hid) { 455 case HID_GD_X: 456 if (prev_usage && (prev_usage->hid == usage->hid)) { 457 hid_map_usage(hi, usage, bit, max, 458 EV_ABS, ABS_MT_TOOL_X); 459 set_abs(hi->input, ABS_MT_TOOL_X, field, 460 cls->sn_move); 461 } else { 462 hid_map_usage(hi, usage, bit, max, 463 EV_ABS, ABS_MT_POSITION_X); 464 set_abs(hi->input, ABS_MT_POSITION_X, field, 465 cls->sn_move); 466 } 467 468 mt_store_field(usage, td, hi); 469 return 1; 470 case HID_GD_Y: 471 if (prev_usage && (prev_usage->hid == usage->hid)) { 472 hid_map_usage(hi, usage, bit, max, 473 EV_ABS, ABS_MT_TOOL_Y); 474 set_abs(hi->input, ABS_MT_TOOL_Y, field, 475 cls->sn_move); 476 } else { 477 hid_map_usage(hi, usage, bit, max, 478 EV_ABS, ABS_MT_POSITION_Y); 479 set_abs(hi->input, ABS_MT_POSITION_Y, field, 480 cls->sn_move); 481 } 482 483 mt_store_field(usage, td, hi); 484 return 1; 485 } 486 return 0; 487 488 case HID_UP_DIGITIZER: 489 switch (usage->hid) { 490 case HID_DG_INRANGE: 491 if (cls->quirks & MT_QUIRK_HOVERING) { 492 hid_map_usage(hi, usage, bit, max, 493 EV_ABS, ABS_MT_DISTANCE); 494 input_set_abs_params(hi->input, 495 ABS_MT_DISTANCE, 0, 1, 0, 0); 496 } 497 mt_store_field(usage, td, hi); 498 return 1; 499 case HID_DG_CONFIDENCE: 500 mt_store_field(usage, td, hi); 501 return 1; 502 case HID_DG_TIPSWITCH: 503 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH); 504 input_set_capability(hi->input, EV_KEY, BTN_TOUCH); 505 mt_store_field(usage, td, hi); 506 return 1; 507 case HID_DG_CONTACTID: 508 mt_store_field(usage, td, hi); 509 td->touches_by_report++; 510 td->mt_report_id = field->report->id; 511 return 1; 512 case HID_DG_WIDTH: 513 hid_map_usage(hi, usage, bit, max, 514 EV_ABS, ABS_MT_TOUCH_MAJOR); 515 if (!(cls->quirks & MT_QUIRK_NO_AREA)) 516 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field, 517 cls->sn_width); 518 mt_store_field(usage, td, hi); 519 return 1; 520 case HID_DG_HEIGHT: 521 hid_map_usage(hi, usage, bit, max, 522 EV_ABS, ABS_MT_TOUCH_MINOR); 523 if (!(cls->quirks & MT_QUIRK_NO_AREA)) { 524 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field, 525 cls->sn_height); 526 input_set_abs_params(hi->input, 527 ABS_MT_ORIENTATION, 0, 1, 0, 0); 528 } 529 mt_store_field(usage, td, hi); 530 return 1; 531 case HID_DG_TIPPRESSURE: 532 hid_map_usage(hi, usage, bit, max, 533 EV_ABS, ABS_MT_PRESSURE); 534 set_abs(hi->input, ABS_MT_PRESSURE, field, 535 cls->sn_pressure); 536 mt_store_field(usage, td, hi); 537 return 1; 538 case HID_DG_CONTACTCOUNT: 539 td->cc_index = field->index; 540 td->cc_value_index = usage->usage_index; 541 return 1; 542 case HID_DG_CONTACTMAX: 543 /* we don't set td->last_slot_field as contactcount and 544 * contact max are global to the report */ 545 return -1; 546 case HID_DG_TOUCH: 547 /* Legacy devices use TIPSWITCH and not TOUCH. 548 * Let's just ignore this field. */ 549 return -1; 550 } 551 /* let hid-input decide for the others */ 552 return 0; 553 554 case HID_UP_BUTTON: 555 code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE); 556 hid_map_usage(hi, usage, bit, max, EV_KEY, code); 557 input_set_capability(hi->input, EV_KEY, code); 558 return 1; 559 560 case 0xff000000: 561 /* we do not want to map these: no input-oriented meaning */ 562 return -1; 563 } 564 565 return 0; 566 } 567 568 static int mt_touch_input_mapped(struct hid_device *hdev, struct hid_input *hi, 569 struct hid_field *field, struct hid_usage *usage, 570 unsigned long **bit, int *max) 571 { 572 if (usage->type == EV_KEY || usage->type == EV_ABS) 573 set_bit(usage->type, hi->input->evbit); 574 575 return -1; 576 } 577 578 static int mt_compute_slot(struct mt_device *td, struct input_dev *input) 579 { 580 __s32 quirks = td->mtclass.quirks; 581 582 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID) 583 return td->curdata.contactid; 584 585 if (quirks & MT_QUIRK_CYPRESS) 586 return cypress_compute_slot(td); 587 588 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER) 589 return td->num_received; 590 591 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE) 592 return td->curdata.contactid - 1; 593 594 return input_mt_get_slot_by_key(input, td->curdata.contactid); 595 } 596 597 /* 598 * this function is called when a whole contact has been processed, 599 * so that it can assign it to a slot and store the data there 600 */ 601 static void mt_complete_slot(struct mt_device *td, struct input_dev *input) 602 { 603 if ((td->mtclass.quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) && 604 td->num_received >= td->num_expected) 605 return; 606 607 if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) { 608 int slotnum = mt_compute_slot(td, input); 609 struct mt_slot *s = &td->curdata; 610 struct input_mt *mt = input->mt; 611 612 if (slotnum < 0 || slotnum >= td->maxcontacts) 613 return; 614 615 if ((td->mtclass.quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) { 616 struct input_mt_slot *slot = &mt->slots[slotnum]; 617 if (input_mt_is_active(slot) && 618 input_mt_is_used(mt, slot)) 619 return; 620 } 621 622 input_mt_slot(input, slotnum); 623 input_mt_report_slot_state(input, MT_TOOL_FINGER, 624 s->touch_state || s->inrange_state); 625 if (s->touch_state || s->inrange_state) { 626 /* this finger is in proximity of the sensor */ 627 int wide = (s->w > s->h); 628 /* divided by two to match visual scale of touch */ 629 int major = max(s->w, s->h) >> 1; 630 int minor = min(s->w, s->h) >> 1; 631 632 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x); 633 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y); 634 input_event(input, EV_ABS, ABS_MT_TOOL_X, s->cx); 635 input_event(input, EV_ABS, ABS_MT_TOOL_Y, s->cy); 636 input_event(input, EV_ABS, ABS_MT_DISTANCE, 637 !s->touch_state); 638 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide); 639 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p); 640 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major); 641 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor); 642 } 643 } 644 645 td->num_received++; 646 } 647 648 /* 649 * this function is called when a whole packet has been received and processed, 650 * so that it can decide what to send to the input layer. 651 */ 652 static void mt_sync_frame(struct mt_device *td, struct input_dev *input) 653 { 654 input_mt_sync_frame(input); 655 input_sync(input); 656 td->num_received = 0; 657 } 658 659 static int mt_touch_event(struct hid_device *hid, struct hid_field *field, 660 struct hid_usage *usage, __s32 value) 661 { 662 /* we will handle the hidinput part later, now remains hiddev */ 663 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event) 664 hid->hiddev_hid_event(hid, field, usage, value); 665 666 return 1; 667 } 668 669 static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field, 670 struct hid_usage *usage, __s32 value) 671 { 672 struct mt_device *td = hid_get_drvdata(hid); 673 __s32 quirks = td->mtclass.quirks; 674 struct input_dev *input = field->hidinput->input; 675 676 if (hid->claimed & HID_CLAIMED_INPUT) { 677 switch (usage->hid) { 678 case HID_DG_INRANGE: 679 if (quirks & MT_QUIRK_VALID_IS_INRANGE) 680 td->curvalid = value; 681 if (quirks & MT_QUIRK_HOVERING) 682 td->curdata.inrange_state = value; 683 break; 684 case HID_DG_TIPSWITCH: 685 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) 686 td->curvalid = value; 687 td->curdata.touch_state = value; 688 break; 689 case HID_DG_CONFIDENCE: 690 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE) 691 td->curvalid = value; 692 break; 693 case HID_DG_CONTACTID: 694 td->curdata.contactid = value; 695 break; 696 case HID_DG_TIPPRESSURE: 697 td->curdata.p = value; 698 break; 699 case HID_GD_X: 700 if (usage->code == ABS_MT_TOOL_X) 701 td->curdata.cx = value; 702 else 703 td->curdata.x = value; 704 break; 705 case HID_GD_Y: 706 if (usage->code == ABS_MT_TOOL_Y) 707 td->curdata.cy = value; 708 else 709 td->curdata.y = value; 710 break; 711 case HID_DG_WIDTH: 712 td->curdata.w = value; 713 break; 714 case HID_DG_HEIGHT: 715 td->curdata.h = value; 716 break; 717 case HID_DG_CONTACTCOUNT: 718 break; 719 case HID_DG_TOUCH: 720 /* do nothing */ 721 break; 722 723 default: 724 if (usage->type) 725 input_event(input, usage->type, usage->code, 726 value); 727 return; 728 } 729 730 if (usage->usage_index + 1 == field->report_count) { 731 /* we only take into account the last report. */ 732 if (usage->hid == td->last_slot_field) 733 mt_complete_slot(td, field->hidinput->input); 734 } 735 736 } 737 } 738 739 static void mt_touch_report(struct hid_device *hid, struct hid_report *report) 740 { 741 struct mt_device *td = hid_get_drvdata(hid); 742 struct hid_field *field; 743 unsigned count; 744 int r, n; 745 746 /* 747 * Includes multi-packet support where subsequent 748 * packets are sent with zero contactcount. 749 */ 750 if (td->cc_index >= 0) { 751 struct hid_field *field = report->field[td->cc_index]; 752 int value = field->value[td->cc_value_index]; 753 if (value) 754 td->num_expected = value; 755 } 756 757 for (r = 0; r < report->maxfield; r++) { 758 field = report->field[r]; 759 count = field->report_count; 760 761 if (!(HID_MAIN_ITEM_VARIABLE & field->flags)) 762 continue; 763 764 for (n = 0; n < count; n++) 765 mt_process_mt_event(hid, field, &field->usage[n], 766 field->value[n]); 767 } 768 769 if (td->num_received >= td->num_expected) 770 mt_sync_frame(td, report->field[0]->hidinput->input); 771 } 772 773 static void mt_touch_input_configured(struct hid_device *hdev, 774 struct hid_input *hi) 775 { 776 struct mt_device *td = hid_get_drvdata(hdev); 777 struct mt_class *cls = &td->mtclass; 778 struct input_dev *input = hi->input; 779 780 if (!td->maxcontacts) 781 td->maxcontacts = MT_DEFAULT_MAXCONTACT; 782 783 mt_post_parse(td); 784 if (td->serial_maybe) 785 mt_post_parse_default_settings(td); 786 787 if (cls->is_indirect) 788 td->mt_flags |= INPUT_MT_POINTER; 789 790 if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) 791 td->mt_flags |= INPUT_MT_DROP_UNUSED; 792 793 input_mt_init_slots(input, td->maxcontacts, td->mt_flags); 794 795 td->mt_flags = 0; 796 } 797 798 static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi, 799 struct hid_field *field, struct hid_usage *usage, 800 unsigned long **bit, int *max) 801 { 802 /* Only map fields from TouchScreen or TouchPad collections. 803 * We need to ignore fields that belong to other collections 804 * such as Mouse that might have the same GenericDesktop usages. */ 805 if (field->application != HID_DG_TOUCHSCREEN && 806 field->application != HID_DG_PEN && 807 field->application != HID_DG_TOUCHPAD) 808 return -1; 809 810 if (field->physical == HID_DG_STYLUS) 811 return mt_pen_input_mapping(hdev, hi, field, usage, bit, max); 812 813 return mt_touch_input_mapping(hdev, hi, field, usage, bit, max); 814 } 815 816 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi, 817 struct hid_field *field, struct hid_usage *usage, 818 unsigned long **bit, int *max) 819 { 820 if (field->physical == HID_DG_STYLUS) 821 return mt_pen_input_mapped(hdev, hi, field, usage, bit, max); 822 823 return mt_touch_input_mapped(hdev, hi, field, usage, bit, max); 824 } 825 826 static int mt_event(struct hid_device *hid, struct hid_field *field, 827 struct hid_usage *usage, __s32 value) 828 { 829 struct mt_device *td = hid_get_drvdata(hid); 830 831 if (field->report->id == td->mt_report_id) 832 return mt_touch_event(hid, field, usage, value); 833 834 if (field->report->id == td->pen_report_id) 835 return mt_pen_event(hid, field, usage, value); 836 837 /* ignore other reports */ 838 return 1; 839 } 840 841 static void mt_report(struct hid_device *hid, struct hid_report *report) 842 { 843 struct mt_device *td = hid_get_drvdata(hid); 844 845 if (!(hid->claimed & HID_CLAIMED_INPUT)) 846 return; 847 848 if (report->id == td->mt_report_id) 849 mt_touch_report(hid, report); 850 851 if (report->id == td->pen_report_id) 852 mt_pen_report(hid, report); 853 } 854 855 static void mt_set_input_mode(struct hid_device *hdev) 856 { 857 struct mt_device *td = hid_get_drvdata(hdev); 858 struct hid_report *r; 859 struct hid_report_enum *re; 860 861 if (td->inputmode < 0) 862 return; 863 864 re = &(hdev->report_enum[HID_FEATURE_REPORT]); 865 r = re->report_id_hash[td->inputmode]; 866 if (r) { 867 r->field[0]->value[td->inputmode_index] = 0x02; 868 hid_hw_request(hdev, r, HID_REQ_SET_REPORT); 869 } 870 } 871 872 static void mt_set_maxcontacts(struct hid_device *hdev) 873 { 874 struct mt_device *td = hid_get_drvdata(hdev); 875 struct hid_report *r; 876 struct hid_report_enum *re; 877 int fieldmax, max; 878 879 if (td->maxcontact_report_id < 0) 880 return; 881 882 if (!td->mtclass.maxcontacts) 883 return; 884 885 re = &hdev->report_enum[HID_FEATURE_REPORT]; 886 r = re->report_id_hash[td->maxcontact_report_id]; 887 if (r) { 888 max = td->mtclass.maxcontacts; 889 fieldmax = r->field[0]->logical_maximum; 890 max = min(fieldmax, max); 891 if (r->field[0]->value[0] != max) { 892 r->field[0]->value[0] = max; 893 hid_hw_request(hdev, r, HID_REQ_SET_REPORT); 894 } 895 } 896 } 897 898 static void mt_post_parse_default_settings(struct mt_device *td) 899 { 900 __s32 quirks = td->mtclass.quirks; 901 902 /* unknown serial device needs special quirks */ 903 if (td->touches_by_report == 1) { 904 quirks |= MT_QUIRK_ALWAYS_VALID; 905 quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP; 906 quirks &= ~MT_QUIRK_VALID_IS_INRANGE; 907 quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE; 908 quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; 909 } 910 911 td->mtclass.quirks = quirks; 912 } 913 914 static void mt_post_parse(struct mt_device *td) 915 { 916 struct mt_fields *f = td->fields; 917 struct mt_class *cls = &td->mtclass; 918 919 if (td->touches_by_report > 0) { 920 int field_count_per_touch = f->length / td->touches_by_report; 921 td->last_slot_field = f->usages[field_count_per_touch - 1]; 922 } 923 924 if (td->cc_index < 0) 925 cls->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; 926 } 927 928 static void mt_input_configured(struct hid_device *hdev, struct hid_input *hi) 929 { 930 struct mt_device *td = hid_get_drvdata(hdev); 931 char *name = kstrdup(hdev->name, GFP_KERNEL); 932 933 if (name) 934 hi->input->name = name; 935 936 if (hi->report->id == td->mt_report_id) 937 mt_touch_input_configured(hdev, hi); 938 939 if (hi->report->id == td->pen_report_id) 940 mt_pen_input_configured(hdev, hi); 941 } 942 943 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) 944 { 945 int ret, i; 946 struct mt_device *td; 947 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */ 948 struct hid_input *hi; 949 950 for (i = 0; mt_classes[i].name ; i++) { 951 if (id->driver_data == mt_classes[i].name) { 952 mtclass = &(mt_classes[i]); 953 break; 954 } 955 } 956 957 /* This allows the driver to correctly support devices 958 * that emit events over several HID messages. 959 */ 960 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC; 961 962 /* 963 * This allows the driver to handle different input sensors 964 * that emits events through different reports on the same HID 965 * device. 966 */ 967 hdev->quirks |= HID_QUIRK_MULTI_INPUT; 968 hdev->quirks |= HID_QUIRK_NO_EMPTY_INPUT; 969 970 td = kzalloc(sizeof(struct mt_device), GFP_KERNEL); 971 if (!td) { 972 dev_err(&hdev->dev, "cannot allocate multitouch data\n"); 973 return -ENOMEM; 974 } 975 td->mtclass = *mtclass; 976 td->inputmode = -1; 977 td->maxcontact_report_id = -1; 978 td->cc_index = -1; 979 td->mt_report_id = -1; 980 td->pen_report_id = -1; 981 hid_set_drvdata(hdev, td); 982 983 td->fields = kzalloc(sizeof(struct mt_fields), GFP_KERNEL); 984 if (!td->fields) { 985 dev_err(&hdev->dev, "cannot allocate multitouch fields data\n"); 986 ret = -ENOMEM; 987 goto fail; 988 } 989 990 if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID) 991 td->serial_maybe = true; 992 993 ret = hid_parse(hdev); 994 if (ret != 0) 995 goto fail; 996 997 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); 998 if (ret) 999 goto hid_fail; 1000 1001 ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group); 1002 1003 mt_set_maxcontacts(hdev); 1004 mt_set_input_mode(hdev); 1005 1006 kfree(td->fields); 1007 td->fields = NULL; 1008 1009 return 0; 1010 1011 hid_fail: 1012 list_for_each_entry(hi, &hdev->inputs, list) 1013 mt_free_input_name(hi); 1014 fail: 1015 kfree(td->fields); 1016 kfree(td); 1017 return ret; 1018 } 1019 1020 #ifdef CONFIG_PM 1021 static int mt_reset_resume(struct hid_device *hdev) 1022 { 1023 mt_set_maxcontacts(hdev); 1024 mt_set_input_mode(hdev); 1025 return 0; 1026 } 1027 1028 static int mt_resume(struct hid_device *hdev) 1029 { 1030 /* Some Elan legacy devices require SET_IDLE to be set on resume. 1031 * It should be safe to send it to other devices too. 1032 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */ 1033 1034 hid_hw_idle(hdev, 0, 0, HID_REQ_SET_IDLE); 1035 1036 return 0; 1037 } 1038 #endif 1039 1040 static void mt_remove(struct hid_device *hdev) 1041 { 1042 struct mt_device *td = hid_get_drvdata(hdev); 1043 struct hid_input *hi; 1044 1045 sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group); 1046 list_for_each_entry(hi, &hdev->inputs, list) 1047 mt_free_input_name(hi); 1048 1049 hid_hw_stop(hdev); 1050 1051 kfree(td); 1052 hid_set_drvdata(hdev, NULL); 1053 } 1054 1055 static const struct hid_device_id mt_devices[] = { 1056 1057 /* 3M panels */ 1058 { .driver_data = MT_CLS_3M, 1059 MT_USB_DEVICE(USB_VENDOR_ID_3M, 1060 USB_DEVICE_ID_3M1968) }, 1061 { .driver_data = MT_CLS_3M, 1062 MT_USB_DEVICE(USB_VENDOR_ID_3M, 1063 USB_DEVICE_ID_3M2256) }, 1064 { .driver_data = MT_CLS_3M, 1065 MT_USB_DEVICE(USB_VENDOR_ID_3M, 1066 USB_DEVICE_ID_3M3266) }, 1067 1068 /* ActionStar panels */ 1069 { .driver_data = MT_CLS_NSMU, 1070 MT_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR, 1071 USB_DEVICE_ID_ACTIONSTAR_1011) }, 1072 1073 /* Atmel panels */ 1074 { .driver_data = MT_CLS_SERIAL, 1075 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL, 1076 USB_DEVICE_ID_ATMEL_MULTITOUCH) }, 1077 { .driver_data = MT_CLS_SERIAL, 1078 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL, 1079 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) }, 1080 1081 /* Baanto multitouch devices */ 1082 { .driver_data = MT_CLS_NSMU, 1083 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO, 1084 USB_DEVICE_ID_BAANTO_MT_190W2) }, 1085 /* Cando panels */ 1086 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 1087 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1088 USB_DEVICE_ID_CANDO_MULTI_TOUCH) }, 1089 { .driver_data = MT_CLS_DUAL_CONTACT_NUMBER, 1090 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1091 USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) }, 1092 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 1093 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1094 USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) }, 1095 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 1096 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1097 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) }, 1098 1099 /* Chunghwa Telecom touch panels */ 1100 { .driver_data = MT_CLS_NSMU, 1101 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT, 1102 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) }, 1103 1104 /* CVTouch panels */ 1105 { .driver_data = MT_CLS_NSMU, 1106 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH, 1107 USB_DEVICE_ID_CVTOUCH_SCREEN) }, 1108 1109 /* Cypress panel */ 1110 { .driver_data = MT_CLS_CYPRESS, 1111 HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, 1112 USB_DEVICE_ID_CYPRESS_TRUETOUCH) }, 1113 1114 /* Data Modul easyMaxTouch */ 1115 { .driver_data = MT_CLS_DEFAULT, 1116 MT_USB_DEVICE(USB_VENDOR_ID_DATA_MODUL, 1117 USB_VENDOR_ID_DATA_MODUL_EASYMAXTOUCH) }, 1118 1119 /* eGalax devices (resistive) */ 1120 { .driver_data = MT_CLS_EGALAX, 1121 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1122 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) }, 1123 { .driver_data = MT_CLS_EGALAX, 1124 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1125 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) }, 1126 1127 /* eGalax devices (capacitive) */ 1128 { .driver_data = MT_CLS_EGALAX_SERIAL, 1129 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1130 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) }, 1131 { .driver_data = MT_CLS_EGALAX, 1132 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1133 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) }, 1134 { .driver_data = MT_CLS_EGALAX_SERIAL, 1135 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1136 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) }, 1137 { .driver_data = MT_CLS_EGALAX_SERIAL, 1138 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1139 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) }, 1140 { .driver_data = MT_CLS_EGALAX_SERIAL, 1141 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1142 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) }, 1143 { .driver_data = MT_CLS_EGALAX_SERIAL, 1144 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1145 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) }, 1146 { .driver_data = MT_CLS_EGALAX, 1147 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1148 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) }, 1149 { .driver_data = MT_CLS_EGALAX, 1150 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1151 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) }, 1152 { .driver_data = MT_CLS_EGALAX_SERIAL, 1153 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1154 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) }, 1155 { .driver_data = MT_CLS_EGALAX, 1156 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 1157 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) }, 1158 { .driver_data = MT_CLS_EGALAX, 1159 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 1160 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) }, 1161 { .driver_data = MT_CLS_EGALAX, 1162 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1163 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) }, 1164 { .driver_data = MT_CLS_EGALAX, 1165 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1166 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) }, 1167 { .driver_data = MT_CLS_EGALAX_SERIAL, 1168 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1169 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) }, 1170 { .driver_data = MT_CLS_EGALAX_SERIAL, 1171 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1172 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) }, 1173 { .driver_data = MT_CLS_EGALAX_SERIAL, 1174 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1175 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) }, 1176 1177 /* Elo TouchSystems IntelliTouch Plus panel */ 1178 { .driver_data = MT_CLS_DUAL_CONTACT_ID, 1179 MT_USB_DEVICE(USB_VENDOR_ID_ELO, 1180 USB_DEVICE_ID_ELO_TS2515) }, 1181 1182 /* Flatfrog Panels */ 1183 { .driver_data = MT_CLS_FLATFROG, 1184 MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG, 1185 USB_DEVICE_ID_MULTITOUCH_3200) }, 1186 1187 /* GeneralTouch panel */ 1188 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS, 1189 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1190 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) }, 1191 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1192 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1193 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) }, 1194 1195 /* Gametel game controller */ 1196 { .driver_data = MT_CLS_NSMU, 1197 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL, 1198 USB_DEVICE_ID_GAMETEL_MT_MODE) }, 1199 1200 /* GoodTouch panels */ 1201 { .driver_data = MT_CLS_NSMU, 1202 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH, 1203 USB_DEVICE_ID_GOODTOUCH_000f) }, 1204 1205 /* Hanvon panels */ 1206 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 1207 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT, 1208 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) }, 1209 1210 /* Ideacom panel */ 1211 { .driver_data = MT_CLS_SERIAL, 1212 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM, 1213 USB_DEVICE_ID_IDEACOM_IDC6650) }, 1214 { .driver_data = MT_CLS_SERIAL, 1215 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM, 1216 USB_DEVICE_ID_IDEACOM_IDC6651) }, 1217 1218 /* Ilitek dual touch panel */ 1219 { .driver_data = MT_CLS_NSMU, 1220 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK, 1221 USB_DEVICE_ID_ILITEK_MULTITOUCH) }, 1222 1223 /* IRTOUCH panels */ 1224 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 1225 MT_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS, 1226 USB_DEVICE_ID_IRTOUCH_INFRARED_USB) }, 1227 1228 /* LG Display panels */ 1229 { .driver_data = MT_CLS_DEFAULT, 1230 MT_USB_DEVICE(USB_VENDOR_ID_LG, 1231 USB_DEVICE_ID_LG_MULTITOUCH) }, 1232 1233 /* Lumio panels */ 1234 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1235 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO, 1236 USB_DEVICE_ID_CRYSTALTOUCH) }, 1237 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1238 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO, 1239 USB_DEVICE_ID_CRYSTALTOUCH_DUAL) }, 1240 1241 /* MosArt panels */ 1242 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1243 MT_USB_DEVICE(USB_VENDOR_ID_ASUS, 1244 USB_DEVICE_ID_ASUS_T91MT)}, 1245 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1246 MT_USB_DEVICE(USB_VENDOR_ID_ASUS, 1247 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) }, 1248 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1249 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX, 1250 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) }, 1251 1252 /* Nexio panels */ 1253 { .driver_data = MT_CLS_DEFAULT, 1254 MT_USB_DEVICE(USB_VENDOR_ID_NEXIO, 1255 USB_DEVICE_ID_NEXIO_MULTITOUCH_420)}, 1256 1257 /* Panasonic panels */ 1258 { .driver_data = MT_CLS_PANASONIC, 1259 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC, 1260 USB_DEVICE_ID_PANABOARD_UBT780) }, 1261 { .driver_data = MT_CLS_PANASONIC, 1262 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC, 1263 USB_DEVICE_ID_PANABOARD_UBT880) }, 1264 1265 /* Novatek Panel */ 1266 { .driver_data = MT_CLS_NSMU, 1267 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK, 1268 USB_DEVICE_ID_NOVATEK_PCT) }, 1269 1270 /* PenMount panels */ 1271 { .driver_data = MT_CLS_CONFIDENCE, 1272 MT_USB_DEVICE(USB_VENDOR_ID_PENMOUNT, 1273 USB_DEVICE_ID_PENMOUNT_PCI) }, 1274 1275 /* PixArt optical touch screen */ 1276 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1277 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1278 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) }, 1279 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1280 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1281 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) }, 1282 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1283 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1284 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) }, 1285 1286 /* PixCir-based panels */ 1287 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 1288 MT_USB_DEVICE(USB_VENDOR_ID_HANVON, 1289 USB_DEVICE_ID_HANVON_MULTITOUCH) }, 1290 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 1291 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1292 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) }, 1293 1294 /* Quanta-based panels */ 1295 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID, 1296 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA, 1297 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) }, 1298 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID, 1299 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA, 1300 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) }, 1301 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID, 1302 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA, 1303 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008) }, 1304 1305 /* Stantum panels */ 1306 { .driver_data = MT_CLS_CONFIDENCE, 1307 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM, 1308 USB_DEVICE_ID_MTP)}, 1309 { .driver_data = MT_CLS_CONFIDENCE, 1310 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, 1311 USB_DEVICE_ID_MTP_STM)}, 1312 { .driver_data = MT_CLS_DEFAULT, 1313 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX, 1314 USB_DEVICE_ID_MTP_SITRONIX)}, 1315 1316 /* TopSeed panels */ 1317 { .driver_data = MT_CLS_TOPSEED, 1318 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, 1319 USB_DEVICE_ID_TOPSEED2_PERIPAD_701) }, 1320 1321 /* Touch International panels */ 1322 { .driver_data = MT_CLS_NSMU, 1323 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL, 1324 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) }, 1325 1326 /* Unitec panels */ 1327 { .driver_data = MT_CLS_NSMU, 1328 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC, 1329 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) }, 1330 { .driver_data = MT_CLS_NSMU, 1331 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC, 1332 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) }, 1333 /* XAT */ 1334 { .driver_data = MT_CLS_NSMU, 1335 MT_USB_DEVICE(USB_VENDOR_ID_XAT, 1336 USB_DEVICE_ID_XAT_CSR) }, 1337 1338 /* Xiroku */ 1339 { .driver_data = MT_CLS_NSMU, 1340 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1341 USB_DEVICE_ID_XIROKU_SPX) }, 1342 { .driver_data = MT_CLS_NSMU, 1343 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1344 USB_DEVICE_ID_XIROKU_MPX) }, 1345 { .driver_data = MT_CLS_NSMU, 1346 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1347 USB_DEVICE_ID_XIROKU_CSR) }, 1348 { .driver_data = MT_CLS_NSMU, 1349 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1350 USB_DEVICE_ID_XIROKU_SPX1) }, 1351 { .driver_data = MT_CLS_NSMU, 1352 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1353 USB_DEVICE_ID_XIROKU_MPX1) }, 1354 { .driver_data = MT_CLS_NSMU, 1355 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1356 USB_DEVICE_ID_XIROKU_CSR1) }, 1357 { .driver_data = MT_CLS_NSMU, 1358 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1359 USB_DEVICE_ID_XIROKU_SPX2) }, 1360 { .driver_data = MT_CLS_NSMU, 1361 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1362 USB_DEVICE_ID_XIROKU_MPX2) }, 1363 { .driver_data = MT_CLS_NSMU, 1364 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1365 USB_DEVICE_ID_XIROKU_CSR2) }, 1366 1367 /* Zytronic panels */ 1368 { .driver_data = MT_CLS_SERIAL, 1369 MT_USB_DEVICE(USB_VENDOR_ID_ZYTRONIC, 1370 USB_DEVICE_ID_ZYTRONIC_ZXY100) }, 1371 1372 /* Generic MT device */ 1373 { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) }, 1374 { } 1375 }; 1376 MODULE_DEVICE_TABLE(hid, mt_devices); 1377 1378 static const struct hid_usage_id mt_grabbed_usages[] = { 1379 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID }, 1380 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1} 1381 }; 1382 1383 static struct hid_driver mt_driver = { 1384 .name = "hid-multitouch", 1385 .id_table = mt_devices, 1386 .probe = mt_probe, 1387 .remove = mt_remove, 1388 .input_mapping = mt_input_mapping, 1389 .input_mapped = mt_input_mapped, 1390 .input_configured = mt_input_configured, 1391 .feature_mapping = mt_feature_mapping, 1392 .usage_table = mt_grabbed_usages, 1393 .event = mt_event, 1394 .report = mt_report, 1395 #ifdef CONFIG_PM 1396 .reset_resume = mt_reset_resume, 1397 .resume = mt_resume, 1398 #endif 1399 }; 1400 module_hid_driver(mt_driver); 1401