Pileus Git - ~andy/linux/blob - drivers/hid/hid-multitouch.c

   1 /*
   2  *  HID driver for multitouch panels
   3  *
   4  *  Copyright (c) 2010-2012 Stephane Chatty <chatty@enac.fr>
   5  *  Copyright (c) 2010-2012 Benjamin Tissoires <benjamin.tissoires@gmail.com>
   6  *  Copyright (c) 2010-2012 Ecole Nationale de l'Aviation Civile, France
   7  *
   8  *  This code is partly based on hid-egalax.c:
   9  *
  10  *  Copyright (c) 2010 Stephane Chatty <chatty@enac.fr>
  11  *  Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se>
  12  *  Copyright (c) 2010 Canonical, Ltd.
  13  *
  14  *  This code is partly based on hid-3m-pct.c:
  15  *
  16  *  Copyright (c) 2009-2010 Stephane Chatty <chatty@enac.fr>
  17  *  Copyright (c) 2010      Henrik Rydberg <rydberg@euromail.se>
  18  *  Copyright (c) 2010      Canonical, Ltd.
  19  *
  20  */
  21
  22 /*
  23  * This program is free software; you can redistribute it and/or modify it
  24  * under the terms of the GNU General Public License as published by the Free
  25  * Software Foundation; either version 2 of the License, or (at your option)
  26  * any later version.
  27  */
  28
  29 #include <linux/device.h>
  30 #include <linux/hid.h>
  31 #include <linux/module.h>
  32 #include <linux/slab.h>
  33 #include <linux/usb.h>
  34 #include <linux/input/mt.h>
  35 #include "usbhid/usbhid.h"
  36
  37
  38 MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
  39 MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");
  40 MODULE_DESCRIPTION("HID multitouch panels");
  41 MODULE_LICENSE("GPL");
  42
  43 #include "hid-ids.h"
  44
  45 /* quirks to control the device */
  46 #define MT_QUIRK_NOT_SEEN_MEANS_UP      (1 << 0)
  47 #define MT_QUIRK_SLOT_IS_CONTACTID      (1 << 1)
  48 #define MT_QUIRK_CYPRESS                (1 << 2)
  49 #define MT_QUIRK_SLOT_IS_CONTACTNUMBER  (1 << 3)
  50 #define MT_QUIRK_ALWAYS_VALID           (1 << 4)
  51 #define MT_QUIRK_VALID_IS_INRANGE       (1 << 5)
  52 #define MT_QUIRK_VALID_IS_CONFIDENCE    (1 << 6)
  53 #define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE    (1 << 8)
  54 #define MT_QUIRK_NO_AREA                (1 << 9)
  55
  56 struct mt_slot {
  57         __s32 x, y, p, w, h;
  58         __s32 contactid;        /* the device ContactID assigned to this slot */
  59         bool touch_state;       /* is the touch valid? */
  60 };
  61
  62 struct mt_class {
  63         __s32 name;     /* MT_CLS */
  64         __s32 quirks;
  65         __s32 sn_move;  /* Signal/noise ratio for move events */
  66         __s32 sn_width; /* Signal/noise ratio for width events */
  67         __s32 sn_height;        /* Signal/noise ratio for height events */
  68         __s32 sn_pressure;      /* Signal/noise ratio for pressure events */
  69         __u8 maxcontacts;
  70         bool is_indirect;       /* true for touchpads */
  71 };
  72
  73 struct mt_fields {
  74         unsigned usages[HID_MAX_FIELDS];
  75         unsigned int length;
  76 };
  77
  78 struct mt_device {
  79         struct mt_slot curdata; /* placeholder of incoming data */
  80         struct mt_class mtclass;        /* our mt device class */
  81         struct mt_fields *fields;       /* temporary placeholder for storing the
  82                                            multitouch fields */
  83         unsigned last_field_index;      /* last field index of the report */
  84         unsigned last_slot_field;       /* the last field of a slot */
  85         __s8 inputmode;         /* InputMode HID feature, -1 if non-existent */
  86         __s8 inputmode_index;   /* InputMode HID feature index in the report */
  87         __s8 maxcontact_report_id;      /* Maximum Contact Number HID feature,
  88                                    -1 if non-existent */
  89         __u8 num_received;      /* how many contacts we received */
  90         __u8 num_expected;      /* expected last contact index */
  91         __u8 maxcontacts;
  92         __u8 touches_by_report; /* how many touches are present in one report:
  93                                 * 1 means we should use a serial protocol
  94                                 * > 1 means hybrid (multitouch) protocol */
  95         bool serial_maybe;      /* need to check for serial protocol */
  96         bool curvalid;          /* is the current contact valid? */
  97         unsigned mt_flags;      /* flags to pass to input-mt */
  98 };
  99
 100 /* classes of device behavior */
 101 #define MT_CLS_DEFAULT                          0x0001
 102
 103 #define MT_CLS_SERIAL                           0x0002
 104 #define MT_CLS_CONFIDENCE                       0x0003
 105 #define MT_CLS_CONFIDENCE_CONTACT_ID            0x0004
 106 #define MT_CLS_CONFIDENCE_MINUS_ONE             0x0005
 107 #define MT_CLS_DUAL_INRANGE_CONTACTID           0x0006
 108 #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER       0x0007
 109 #define MT_CLS_DUAL_NSMU_CONTACTID              0x0008
 110 #define MT_CLS_INRANGE_CONTACTNUMBER            0x0009
 111
 112 /* vendor specific classes */
 113 #define MT_CLS_3M                               0x0101
 114 #define MT_CLS_CYPRESS                          0x0102
 115 #define MT_CLS_EGALAX                           0x0103
 116 #define MT_CLS_EGALAX_SERIAL                    0x0104
 117 #define MT_CLS_TOPSEED                          0x0105
 118 #define MT_CLS_PANASONIC                        0x0106
 119 #define MT_CLS_FLATFROG                         0x0107
 120 #define MT_CLS_GENERALTOUCH_TWOFINGERS          0x0108
 121 #define MT_CLS_GENERALTOUCH_PWT_TENFINGERS      0x0109
 122
 123 #define MT_DEFAULT_MAXCONTACT   10
 124
 125 #define MT_USB_DEVICE(v, p)     HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p)
 126 #define MT_BT_DEVICE(v, p)      HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p)
 127
 128 /*
 129  * these device-dependent functions determine what slot corresponds
 130  * to a valid contact that was just read.
 131  */
 132
 133 static int cypress_compute_slot(struct mt_device *td)
 134 {
 135         if (td->curdata.contactid != 0 || td->num_received == 0)
 136                 return td->curdata.contactid;
 137         else
 138                 return -1;
 139 }
 140
 141 static struct mt_class mt_classes[] = {
 142         { .name = MT_CLS_DEFAULT,
 143                 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP },
 144         { .name = MT_CLS_SERIAL,
 145                 .quirks = MT_QUIRK_ALWAYS_VALID},
 146         { .name = MT_CLS_CONFIDENCE,
 147                 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE },
 148         { .name = MT_CLS_CONFIDENCE_CONTACT_ID,
 149                 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
 150                         MT_QUIRK_SLOT_IS_CONTACTID },
 151         { .name = MT_CLS_CONFIDENCE_MINUS_ONE,
 152                 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
 153                         MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE },
 154         { .name = MT_CLS_DUAL_INRANGE_CONTACTID,
 155                 .quirks = MT_QUIRK_VALID_IS_INRANGE |
 156                         MT_QUIRK_SLOT_IS_CONTACTID,
 157                 .maxcontacts = 2 },
 158         { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
 159                 .quirks = MT_QUIRK_VALID_IS_INRANGE |
 160                         MT_QUIRK_SLOT_IS_CONTACTNUMBER,
 161                 .maxcontacts = 2 },
 162         { .name = MT_CLS_DUAL_NSMU_CONTACTID,
 163                 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
 164                         MT_QUIRK_SLOT_IS_CONTACTID,
 165                 .maxcontacts = 2 },
 166         { .name = MT_CLS_INRANGE_CONTACTNUMBER,
 167                 .quirks = MT_QUIRK_VALID_IS_INRANGE |
 168                         MT_QUIRK_SLOT_IS_CONTACTNUMBER },
 169
 170         /*
 171          * vendor specific classes
 172          */
 173         { .name = MT_CLS_3M,
 174                 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
 175                         MT_QUIRK_SLOT_IS_CONTACTID,
 176                 .sn_move = 2048,
 177                 .sn_width = 128,
 178                 .sn_height = 128,
 179                 .maxcontacts = 60,
 180         },
 181         { .name = MT_CLS_CYPRESS,
 182                 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
 183                         MT_QUIRK_CYPRESS,
 184                 .maxcontacts = 10 },
 185         { .name = MT_CLS_EGALAX,
 186                 .quirks =  MT_QUIRK_SLOT_IS_CONTACTID |
 187                         MT_QUIRK_VALID_IS_INRANGE,
 188                 .sn_move = 4096,
 189                 .sn_pressure = 32,
 190         },
 191         { .name = MT_CLS_EGALAX_SERIAL,
 192                 .quirks =  MT_QUIRK_SLOT_IS_CONTACTID |
 193                         MT_QUIRK_ALWAYS_VALID,
 194                 .sn_move = 4096,
 195                 .sn_pressure = 32,
 196         },
 197         { .name = MT_CLS_TOPSEED,
 198                 .quirks = MT_QUIRK_ALWAYS_VALID,
 199                 .is_indirect = true,
 200                 .maxcontacts = 2,
 201         },
 202         { .name = MT_CLS_PANASONIC,
 203                 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP,
 204                 .maxcontacts = 4 },
 205         { .name = MT_CLS_GENERALTOUCH_TWOFINGERS,
 206                 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
 207                         MT_QUIRK_VALID_IS_INRANGE |
 208                         MT_QUIRK_SLOT_IS_CONTACTNUMBER,
 209                 .maxcontacts = 2
 210         },
 211         { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
 212                 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
 213                         MT_QUIRK_SLOT_IS_CONTACTNUMBER
 214         },
 215
 216         { .name = MT_CLS_FLATFROG,
 217                 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
 218                         MT_QUIRK_NO_AREA,
 219                 .sn_move = 2048,
 220                 .maxcontacts = 40,
 221         },
 222         { }
 223 };
 224
 225 static ssize_t mt_show_quirks(struct device *dev,
 226                            struct device_attribute *attr,
 227                            char *buf)
 228 {
 229         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
 230         struct mt_device *td = hid_get_drvdata(hdev);
 231
 232         return sprintf(buf, "%u\n", td->mtclass.quirks);
 233 }
 234
 235 static ssize_t mt_set_quirks(struct device *dev,
 236                           struct device_attribute *attr,
 237                           const char *buf, size_t count)
 238 {
 239         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
 240         struct mt_device *td = hid_get_drvdata(hdev);
 241
 242         unsigned long val;
 243
 244         if (kstrtoul(buf, 0, &val))
 245                 return -EINVAL;
 246
 247         td->mtclass.quirks = val;
 248
 249         return count;
 250 }
 251
 252 static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks);
 253
 254 static struct attribute *sysfs_attrs[] = {
 255         &dev_attr_quirks.attr,
 256         NULL
 257 };
 258
 259 static struct attribute_group mt_attribute_group = {
 260         .attrs = sysfs_attrs
 261 };
 262
 263 static void mt_feature_mapping(struct hid_device *hdev,
 264                 struct hid_field *field, struct hid_usage *usage)
 265 {
 266         struct mt_device *td = hid_get_drvdata(hdev);
 267         int i;
 268
 269         switch (usage->hid) {
 270         case HID_DG_INPUTMODE:
 271                 td->inputmode = field->report->id;
 272                 td->inputmode_index = 0; /* has to be updated below */
 273
 274                 for (i=0; i < field->maxusage; i++) {
 275                         if (field->usage[i].hid == usage->hid) {
 276                                 td->inputmode_index = i;
 277                                 break;
 278                         }
 279                 }
 280
 281                 break;
 282         case HID_DG_CONTACTMAX:
 283                 td->maxcontact_report_id = field->report->id;
 284                 td->maxcontacts = field->value[0];
 285                 if (td->mtclass.maxcontacts)
 286                         /* check if the maxcontacts is given by the class */
 287                         td->maxcontacts = td->mtclass.maxcontacts;
 288
 289                 break;
 290         }
 291 }
 292
 293 static void set_abs(struct input_dev *input, unsigned int code,
 294                 struct hid_field *field, int snratio)
 295 {
 296         int fmin = field->logical_minimum;
 297         int fmax = field->logical_maximum;
 298         int fuzz = snratio ? (fmax - fmin) / snratio : 0;
 299         input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
 300         input_abs_set_res(input, code, hidinput_calc_abs_res(field, code));
 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                 case HID_DG_TOUCH:
 425                         /* Legacy devices use TIPSWITCH and not TOUCH.
 426                          * Let's just ignore this field. */
 427                         return -1;
 428                 }
 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);