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