drivers/hid/hid-wacom.c

   1 /*
   2  *  Bluetooth Wacom Tablet support
   3  *
   4  *  Copyright (c) 1999 Andreas Gal
   5  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
   6  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
   7  *  Copyright (c) 2006-2007 Jiri Kosina
   8  *  Copyright (c) 2007 Paul Walmsley
   9  *  Copyright (c) 2008 Jiri Slaby <jirislaby@gmail.com>
  10  *  Copyright (c) 2006 Andrew Zabolotny <zap@homelink.ru>
  11  *  Copyright (c) 2009 Bastien Nocera <hadess@hadess.net>
  12  *  Copyright (c) 2011 Przemysław Firszt <przemo@firszt.eu>
  13  */
  14
  15 /*
  16  * This program is free software; you can redistribute it and/or modify it
  17  * under the terms of the GNU General Public License as published by the Free
  18  * Software Foundation; either version 2 of the License, or (at your option)
  19  * any later version.
  20  */
  21
  22 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  23
  24 #include <linux/device.h>
  25 #include <linux/hid.h>
  26 #include <linux/module.h>
  27 #include <linux/leds.h>
  28 #include <linux/slab.h>
  29 #include <linux/power_supply.h>
  30
  31 #include "hid-ids.h"
  32
  33 #define PAD_DEVICE_ID   0x0F
  34
  35 #define WAC_CMD_LED_CONTROL     0x20
  36
  37 struct wacom_data {
  38         __u16 tool;
  39         __u16 butstate;
  40         __u8 whlstate;
  41         __u8 features;
  42         __u32 id;
  43         __u32 serial;
  44         unsigned char high_speed;
  45         __u8 battery_capacity;
  46         __u8 power_raw;
  47         __u8 ps_connected;
  48         struct power_supply battery;
  49         struct power_supply ac;
  50         __u8 led_selector;
  51         struct led_classdev *leds[4];
  52 };
  53
  54 /*percent of battery capacity for Graphire
  55   8th value means AC online and show 100% capacity */
  56 static unsigned short batcap_gr[8] = { 1, 15, 25, 35, 50, 70, 100, 100 };
  57 /*percent of battery capacity for Intuos4 WL, AC has a separate bit*/
  58 static unsigned short batcap_i4[8] = { 1, 15, 30, 45, 60, 70, 85, 100 };
  59
  60 static enum power_supply_property wacom_battery_props[] = {
  61         POWER_SUPPLY_PROP_PRESENT,
  62         POWER_SUPPLY_PROP_CAPACITY,
  63         POWER_SUPPLY_PROP_SCOPE,
  64 };
  65
  66 static enum power_supply_property wacom_ac_props[] = {
  67         POWER_SUPPLY_PROP_PRESENT,
  68         POWER_SUPPLY_PROP_ONLINE,
  69         POWER_SUPPLY_PROP_SCOPE,
  70 };
  71
  72 static void wacom_leds_set_brightness(struct led_classdev *led_dev,
  73                                                 enum led_brightness value)
  74 {
  75         struct device *dev = led_dev->dev->parent;
  76         struct hid_device *hdev;
  77         struct wacom_data *wdata;
  78         unsigned char *buf;
  79         __u8 led = 0;
  80         int i;
  81
  82         hdev = container_of(dev, struct hid_device, dev);
  83         wdata = hid_get_drvdata(hdev);
  84         for (i = 0; i < 4; ++i) {
  85                 if (wdata->leds[i] == led_dev)
  86                         wdata->led_selector = i;
  87         }
  88
  89         led = wdata->led_selector | 0x04;
  90         buf = kzalloc(9, GFP_KERNEL);
  91         if (buf) {
  92                 buf[0] = WAC_CMD_LED_CONTROL;
  93                 buf[1] = led;
  94                 buf[2] = value;
  95                 hdev->hid_output_raw_report(hdev, buf, 9, HID_FEATURE_REPORT);
  96                 kfree(buf);
  97         }
  98
  99         return;
 100 }
 101
 102 static enum led_brightness wacom_leds_get_brightness(struct led_classdev *led_dev)
 103 {
 104         struct wacom_data *wdata;
 105         struct device *dev = led_dev->dev->parent;
 106         int value = 0;
 107         int i;
 108
 109         wdata = hid_get_drvdata(container_of(dev, struct hid_device, dev));
 110
 111         for (i = 0; i < 4; ++i) {
 112                 if (wdata->leds[i] == led_dev) {
 113                         value = wdata->leds[i]->brightness;
 114                         break;
 115                 }
 116         }
 117
 118         return value;
 119 }
 120
 121
 122 static int wacom_initialize_leds(struct hid_device *hdev)
 123 {
 124         struct wacom_data *wdata = hid_get_drvdata(hdev);
 125         struct led_classdev *led;
 126         struct device *dev = &hdev->dev;
 127         size_t namesz = strlen(dev_name(dev)) + 12;
 128         char *name;
 129         int i, ret;
 130
 131         wdata->led_selector = 0;
 132
 133         for (i = 0; i < 4; i++) {
 134                 led = kzalloc(sizeof(struct led_classdev) + namesz, GFP_KERNEL);
 135                 if (!led) {
 136                         hid_warn(hdev,
 137                                  "can't allocate memory for LED selector\n");
 138                         ret = -ENOMEM;
 139                         goto err;
 140                 }
 141
 142                 name = (void *)&led[1];
 143                 snprintf(name, namesz, "%s:selector:%d", dev_name(dev), i);
 144                 led->name = name;
 145                 led->brightness = 0;
 146                 led->max_brightness = 127;
 147                 led->brightness_get = wacom_leds_get_brightness;
 148                 led->brightness_set = wacom_leds_set_brightness;
 149
 150                 wdata->leds[i] = led;
 151
 152                 ret = led_classdev_register(dev, wdata->leds[i]);
 153
 154                 if (ret) {
 155                         wdata->leds[i] = NULL;
 156                         kfree(led);
 157                         hid_warn(hdev, "can't register LED\n");
 158                         goto err;
 159                 }
 160         }
 161
 162 err:
 163         return ret;
 164 }
 165
 166 static void wacom_destroy_leds(struct hid_device *hdev)
 167 {
 168         struct wacom_data *wdata = hid_get_drvdata(hdev);
 169         struct led_classdev *led;
 170         int i;
 171
 172         for (i = 0; i < 4; ++i) {
 173                 if (wdata->leds[i]) {
 174                         led = wdata->leds[i];
 175                         wdata->leds[i] = NULL;
 176                         led_classdev_unregister(led);
 177                         kfree(led);
 178                 }
 179         }
 180
 181 }
 182
 183 static int wacom_battery_get_property(struct power_supply *psy,
 184                                 enum power_supply_property psp,
 185                                 union power_supply_propval *val)
 186 {
 187         struct wacom_data *wdata = container_of(psy,
 188                                         struct wacom_data, battery);
 189         int ret = 0;
 190
 191         switch (psp) {
 192         case POWER_SUPPLY_PROP_PRESENT:
 193                 val->intval = 1;
 194                 break;
 195         case POWER_SUPPLY_PROP_SCOPE:
 196                 val->intval = POWER_SUPPLY_SCOPE_DEVICE;
 197                 break;
 198         case POWER_SUPPLY_PROP_CAPACITY:
 199                 val->intval = wdata->battery_capacity;
 200                 break;
 201         default:
 202                 ret = -EINVAL;
 203                 break;
 204         }
 205         return ret;
 206 }
 207
 208 static int wacom_ac_get_property(struct power_supply *psy,
 209                                 enum power_supply_property psp,
 210                                 union power_supply_propval *val)
 211 {
 212         struct wacom_data *wdata = container_of(psy, struct wacom_data, ac);
 213         int ret = 0;
 214
 215         switch (psp) {
 216         case POWER_SUPPLY_PROP_PRESENT:
 217                 /* fall through */
 218         case POWER_SUPPLY_PROP_ONLINE:
 219                 val->intval = wdata->ps_connected;
 220                 break;
 221         case POWER_SUPPLY_PROP_SCOPE:
 222                 val->intval = POWER_SUPPLY_SCOPE_DEVICE;
 223                 break;
 224         default:
 225                 ret = -EINVAL;
 226                 break;
 227         }
 228         return ret;
 229 }
 230
 231 static void wacom_set_features(struct hid_device *hdev, u8 speed)
 232 {
 233         struct wacom_data *wdata = hid_get_drvdata(hdev);
 234         int limit, ret;
 235         __u8 rep_data[2];
 236
 237         switch (hdev->product) {
 238         case USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH:
 239                 rep_data[0] = 0x03 ; rep_data[1] = 0x00;
 240                 limit = 3;
 241                 do {
 242                         ret = hdev->hid_output_raw_report(hdev, rep_data, 2,
 243                                         HID_FEATURE_REPORT);
 244                 } while (ret < 0 && limit-- > 0);
 245
 246                 if (ret >= 0) {
 247                         if (speed == 0)
 248                                 rep_data[0] = 0x05;
 249                         else
 250                                 rep_data[0] = 0x06;
 251
 252                         rep_data[1] = 0x00;
 253                         limit = 3;
 254                         do {
 255                                 ret = hdev->hid_output_raw_report(hdev,
 256                                         rep_data, 2, HID_FEATURE_REPORT);
 257                         } while (ret < 0 && limit-- > 0);
 258
 259                         if (ret >= 0) {
 260                                 wdata->high_speed = speed;
 261                                 return;
 262                         }
 263                 }
 264
 265                 /*
 266                  * Note that if the raw queries fail, it's not a hard failure
 267                  * and it is safe to continue
 268                  */
 269                 hid_warn(hdev, "failed to poke device, command %d, err %d\n",
 270                          rep_data[0], ret);
 271                 break;
 272         case USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH:
 273                 if (speed == 1)
 274                         wdata->features &= ~0x20;
 275                 else
 276                         wdata->features |= 0x20;
 277
 278                 rep_data[0] = 0x03;
 279                 rep_data[1] = wdata->features;
 280
 281                 ret = hdev->hid_output_raw_report(hdev, rep_data, 2,
 282                                         HID_FEATURE_REPORT);
 283                 if (ret >= 0)
 284                         wdata->high_speed = speed;
 285                 break;
 286         }
 287
 288         return;
 289 }
 290
 291 static ssize_t wacom_show_speed(struct device *dev,
 292                                 struct device_attribute
 293                                 *attr, char *buf)
 294 {
 295         struct wacom_data *wdata = dev_get_drvdata(dev);
 296
 297         return snprintf(buf, PAGE_SIZE, "%i\n", wdata->high_speed);
 298 }
 299
 300 static ssize_t wacom_store_speed(struct device *dev,
 301                                 struct device_attribute *attr,
 302                                 const char *buf, size_t count)
 303 {
 304         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
 305         int new_speed;
 306
 307         if (sscanf(buf, "%1d", &new_speed ) != 1)
 308                 return -EINVAL;
 309
 310         if (new_speed == 0 || new_speed == 1) {
 311                 wacom_set_features(hdev, new_speed);
 312                 return strnlen(buf, PAGE_SIZE);
 313         } else
 314                 return -EINVAL;
 315 }
 316
 317 static DEVICE_ATTR(speed, S_IRUGO | S_IWUSR | S_IWGRP,
 318                 wacom_show_speed, wacom_store_speed);
 319
 320 static int wacom_gr_parse_report(struct hid_device *hdev,
 321                         struct wacom_data *wdata,
 322                         struct input_dev *input, unsigned char *data)
 323 {
 324         int tool, x, y, rw;
 325
 326         tool = 0;
 327         /* Get X & Y positions */
 328         x = le16_to_cpu(*(__le16 *) &data[2]);
 329         y = le16_to_cpu(*(__le16 *) &data[4]);
 330
 331         /* Get current tool identifier */
 332         if (data[1] & 0x90) { /* If pen is in the in/active area */
 333                 switch ((data[1] >> 5) & 3) {
 334                 case 0: /* Pen */
 335                         tool = BTN_TOOL_PEN;
 336                         break;
 337
 338                 case 1: /* Rubber */
 339                         tool = BTN_TOOL_RUBBER;
 340                         break;
 341
 342                 case 2: /* Mouse with wheel */
 343                 case 3: /* Mouse without wheel */
 344                         tool = BTN_TOOL_MOUSE;
 345                         break;
 346                 }
 347
 348                 /* Reset tool if out of active tablet area */
 349                 if (!(data[1] & 0x10))
 350                         tool = 0;
 351         }
 352
 353         /* If tool changed, notify input subsystem */
 354         if (wdata->tool != tool) {
 355                 if (wdata->tool) {
 356                         /* Completely reset old tool state */
 357                         if (wdata->tool == BTN_TOOL_MOUSE) {
 358                                 input_report_key(input, BTN_LEFT, 0);
 359                                 input_report_key(input, BTN_RIGHT, 0);
 360                                 input_report_key(input, BTN_MIDDLE, 0);
 361                                 input_report_abs(input, ABS_DISTANCE,
 362                                         input_abs_get_max(input, ABS_DISTANCE));
 363                         } else {
 364                                 input_report_key(input, BTN_TOUCH, 0);
 365                                 input_report_key(input, BTN_STYLUS, 0);
 366                                 input_report_key(input, BTN_STYLUS2, 0);
 367                                 input_report_abs(input, ABS_PRESSURE, 0);
 368                         }
 369                         input_report_key(input, wdata->tool, 0);
 370                         input_sync(input);
 371                 }
 372                 wdata->tool = tool;
 373                 if (tool)
 374                         input_report_key(input, tool, 1);
 375         }
 376
 377         if (tool) {
 378                 input_report_abs(input, ABS_X, x);
 379                 input_report_abs(input, ABS_Y, y);
 380
 381                 switch ((data[1] >> 5) & 3) {
 382                 case 2: /* Mouse with wheel */
 383                         input_report_key(input, BTN_MIDDLE, data[1] & 0x04);
 384                         rw = (data[6] & 0x01) ? -1 :
 385                                 (data[6] & 0x02) ? 1 : 0;
 386                         input_report_rel(input, REL_WHEEL, rw);
 387                         /* fall through */
 388
 389                 case 3: /* Mouse without wheel */
 390                         input_report_key(input, BTN_LEFT, data[1] & 0x01);
 391                         input_report_key(input, BTN_RIGHT, data[1] & 0x02);
 392                         /* Compute distance between mouse and tablet */
 393                         rw = 44 - (data[6] >> 2);
 394                         if (rw < 0)
 395                                 rw = 0;
 396                         else if (rw > 31)
 397                                 rw = 31;
 398                         input_report_abs(input, ABS_DISTANCE, rw);
 399                         break;
 400
 401                 default:
 402                         input_report_abs(input, ABS_PRESSURE,
 403                                         data[6] | (((__u16) (data[1] & 0x08)) << 5));
 404                         input_report_key(input, BTN_TOUCH, data[1] & 0x01);
 405                         input_report_key(input, BTN_STYLUS, data[1] & 0x02);
 406                         input_report_key(input, BTN_STYLUS2, (tool == BTN_TOOL_PEN) && data[1] & 0x04);
 407                         break;
 408                 }
 409
 410                 input_sync(input);
 411         }
 412
 413         /* Report the state of the two buttons at the top of the tablet
 414          * as two extra fingerpad keys (buttons 4 & 5). */
 415         rw = data[7] & 0x03;
 416         if (rw != wdata->butstate) {
 417                 wdata->butstate = rw;
 418                 input_report_key(input, BTN_0, rw & 0x02);
 419                 input_report_key(input, BTN_1, rw & 0x01);
 420                 input_report_key(input, BTN_TOOL_FINGER, 0xf0);
 421                 input_event(input, EV_MSC, MSC_SERIAL, 0xf0);
 422                 input_sync(input);
 423         }
 424
 425         /* Store current battery capacity and power supply state*/
 426         rw = (data[7] >> 2 & 0x07);
 427         if (rw != wdata->power_raw) {
 428                 wdata->power_raw = rw;
 429                 wdata->battery_capacity = batcap_gr[rw];
 430                 if (rw == 7)
 431                         wdata->ps_connected = 1;
 432                 else
 433                         wdata->ps_connected = 0;
 434         }
 435         return 1;
 436 }
 437
 438 static void wacom_i4_parse_button_report(struct wacom_data *wdata,
 439                         struct input_dev *input, unsigned char *data)
 440 {
 441         __u16 new_butstate;
 442         __u8 new_whlstate;
 443         __u8 sync = 0;
 444
 445         new_whlstate = data[1];
 446         if (new_whlstate != wdata->whlstate) {
 447                 wdata->whlstate = new_whlstate;
 448                 if (new_whlstate & 0x80) {
 449                         input_report_key(input, BTN_TOUCH, 1);
 450                         input_report_abs(input, ABS_WHEEL, (new_whlstate & 0x7f));
 451                         input_report_key(input, BTN_TOOL_FINGER, 1);
 452                 } else {
 453                         input_report_key(input, BTN_TOUCH, 0);
 454                         input_report_abs(input, ABS_WHEEL, 0);
 455                         input_report_key(input, BTN_TOOL_FINGER, 0);
 456                 }
 457                 sync = 1;
 458         }
 459
 460         new_butstate = (data[3] << 1) | (data[2] & 0x01);
 461         if (new_butstate != wdata->butstate) {
 462                 wdata->butstate = new_butstate;
 463                 input_report_key(input, BTN_0, new_butstate & 0x001);
 464                 input_report_key(input, BTN_1, new_butstate & 0x002);
 465                 input_report_key(input, BTN_2, new_butstate & 0x004);
 466                 input_report_key(input, BTN_3, new_butstate & 0x008);
 467                 input_report_key(input, BTN_4, new_butstate & 0x010);
 468                 input_report_key(input, BTN_5, new_butstate & 0x020);
 469                 input_report_key(input, BTN_6, new_butstate & 0x040);
 470                 input_report_key(input, BTN_7, new_butstate & 0x080);
 471                 input_report_key(input, BTN_8, new_butstate & 0x100);
 472                 input_report_key(input, BTN_TOOL_FINGER, 1);
 473                 sync = 1;
 474         }
 475
 476         if (sync) {
 477                 input_report_abs(input, ABS_MISC, PAD_DEVICE_ID);
 478                 input_event(input, EV_MSC, MSC_SERIAL, 0xffffffff);
 479                 input_sync(input);
 480         }
 481 }
 482
 483 static void wacom_i4_parse_pen_report(struct wacom_data *wdata,
 484                         struct input_dev *input, unsigned char *data)
 485 {
 486         __u16 x, y, pressure;
 487         __u8 distance;
 488         __u8 tilt_x, tilt_y;
 489
 490         switch (data[1]) {
 491         case 0x80: /* Out of proximity report */
 492                 input_report_key(input, BTN_TOUCH, 0);
 493                 input_report_abs(input, ABS_PRESSURE, 0);
 494                 input_report_key(input, BTN_STYLUS, 0);
 495                 input_report_key(input, BTN_STYLUS2, 0);
 496                 input_report_key(input, wdata->tool, 0);
 497                 input_report_abs(input, ABS_MISC, 0);
 498                 input_event(input, EV_MSC, MSC_SERIAL, wdata->serial);
 499                 wdata->tool = 0;
 500                 input_sync(input);
 501                 break;
 502         case 0xC2: /* Tool report */
 503                 wdata->id = ((data[2] << 4) | (data[3] >> 4) |
 504                         ((data[7] & 0x0f) << 20) |
 505                         ((data[8] & 0xf0) << 12));
 506                 wdata->serial = ((data[3] & 0x0f) << 28) +
 507                                 (data[4] << 20) + (data[5] << 12) +
 508                                 (data[6] << 4) + (data[7] >> 4);
 509
 510                 switch (wdata->id) {
 511                 case 0x100802:
 512                         wdata->tool = BTN_TOOL_PEN;
 513                         break;
 514                 case 0x10080A:
 515                         wdata->tool = BTN_TOOL_RUBBER;
 516                         break;
 517                 }
 518                 break;
 519         default: /* Position/pressure report */
 520                 x = data[2] << 9 | data[3] << 1 | ((data[9] & 0x02) >> 1);
 521                 y = data[4] << 9 | data[5] << 1 | (data[9] & 0x01);
 522                 pressure = (data[6] << 3) | ((data[7] & 0xC0) >> 5)
 523                         | (data[1] & 0x01);
 524                 distance = (data[9] >> 2) & 0x3f;
 525                 tilt_x = ((data[7] << 1) & 0x7e) | (data[8] >> 7);
 526                 tilt_y = data[8] & 0x7f;
 527
 528                 input_report_key(input, BTN_TOUCH, pressure > 1);
 529
 530                 input_report_key(input, BTN_STYLUS, data[1] & 0x02);
 531                 input_report_key(input, BTN_STYLUS2, data[1] & 0x04);
 532                 input_report_key(input, wdata->tool, 1);
 533                 input_report_abs(input, ABS_X, x);
 534                 input_report_abs(input, ABS_Y, y);
 535                 input_report_abs(input, ABS_PRESSURE, pressure);
 536                 input_report_abs(input, ABS_DISTANCE, distance);
 537                 input_report_abs(input, ABS_TILT_X, tilt_x);
 538                 input_report_abs(input, ABS_TILT_Y, tilt_y);
 539                 input_report_abs(input, ABS_MISC, wdata->id);
 540                 input_event(input, EV_MSC, MSC_SERIAL, wdata->serial);
 541                 input_report_key(input, wdata->tool, 1);
 542                 input_sync(input);
 543                 break;
 544         }
 545
 546         return;
 547 }
 548
 549 static void wacom_i4_parse_report(struct hid_device *hdev,
 550                         struct wacom_data *wdata,
 551                         struct input_dev *input, unsigned char *data)
 552 {
 553         switch (data[0]) {
 554         case 0x00: /* Empty report */
 555                 break;
 556         case 0x02: /* Pen report */
 557                 wacom_i4_parse_pen_report(wdata, input, data);
 558                 break;
 559         case 0x03: /* Features Report */
 560                 wdata->features = data[2];
 561                 break;
 562         case 0x0C: /* Button report */
 563                 wacom_i4_parse_button_report(wdata, input, data);
 564                 break;
 565         default:
 566                 hid_err(hdev, "Unknown report: %d,%d\n", data[0], data[1]);
 567                 break;
 568         }
 569 }
 570
 571 static int wacom_raw_event(struct hid_device *hdev, struct hid_report *report,
 572                 u8 *raw_data, int size)
 573 {
 574         struct wacom_data *wdata = hid_get_drvdata(hdev);
 575         struct hid_input *hidinput;
 576         struct input_dev *input;
 577         unsigned char *data = (unsigned char *) raw_data;
 578         int i;
 579         __u8 power_raw;
 580
 581         if (!(hdev->claimed & HID_CLAIMED_INPUT))
 582                 return 0;
 583
 584         hidinput = list_entry(hdev->inputs.next, struct hid_input, list);
 585         input = hidinput->input;
 586
 587         switch (hdev->product) {
 588         case USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH:
 589                 if (data[0] == 0x03) {
 590                         return wacom_gr_parse_report(hdev, wdata, input, data);
 591                 } else {
 592                         hid_err(hdev, "Unknown report: %d,%d size:%d\n",
 593                                         data[0], data[1], size);
 594                         return 0;
 595                 }
 596                 break;
 597         case USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH:
 598                 i = 1;
 599
 600                 switch (data[0]) {
 601                 case 0x04:
 602                         wacom_i4_parse_report(hdev, wdata, input, data + i);
 603                         i += 10;
 604                         /* fall through */
 605                 case 0x03:
 606                         wacom_i4_parse_report(hdev, wdata, input, data + i);
 607                         i += 10;
 608                         wacom_i4_parse_report(hdev, wdata, input, data + i);
 609                         power_raw = data[i+10];
 610                         if (power_raw != wdata->power_raw) {
 611                                 wdata->power_raw = power_raw;
 612                                 wdata->battery_capacity = batcap_i4[power_raw & 0x07];
 613                                 wdata->ps_connected = power_raw & 0x08;
 614                         }
 615
 616                         break;
 617                 default:
 618                         hid_err(hdev, "Unknown report: %d,%d size:%d\n",
 619                                         data[0], data[1], size);
 620                         return 0;
 621                 }
 622         }
 623         return 1;
 624 }
 625
 626 static int wacom_input_mapped(struct hid_device *hdev, struct hid_input *hi,
 627         struct hid_field *field, struct hid_usage *usage, unsigned long **bit,
 628                                                                 int *max)
 629 {
 630         struct input_dev *input = hi->input;
 631
 632         __set_bit(INPUT_PROP_POINTER, input->propbit);
 633
 634         /* Basics */
 635         input->evbit[0] |= BIT(EV_KEY) | BIT(EV_ABS) | BIT(EV_REL);
 636
 637         __set_bit(REL_WHEEL, input->relbit);
 638
 639         __set_bit(BTN_TOOL_PEN, input->keybit);
 640         __set_bit(BTN_TOUCH, input->keybit);
 641         __set_bit(BTN_STYLUS, input->keybit);
 642         __set_bit(BTN_STYLUS2, input->keybit);
 643         __set_bit(BTN_LEFT, input->keybit);
 644         __set_bit(BTN_RIGHT, input->keybit);
 645         __set_bit(BTN_MIDDLE, input->keybit);
 646
 647         /* Pad */
 648         input_set_capability(input, EV_MSC, MSC_SERIAL);
 649
 650         __set_bit(BTN_0, input->keybit);
 651         __set_bit(BTN_1, input->keybit);
 652         __set_bit(BTN_TOOL_FINGER, input->keybit);
 653
 654         /* Distance, rubber and mouse */
 655         __set_bit(BTN_TOOL_RUBBER, input->keybit);
 656         __set_bit(BTN_TOOL_MOUSE, input->keybit);
 657
 658         switch (hdev->product) {
 659         case USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH:
 660                 input_set_abs_params(input, ABS_X, 0, 16704, 4, 0);
 661                 input_set_abs_params(input, ABS_Y, 0, 12064, 4, 0);
 662                 input_set_abs_params(input, ABS_PRESSURE, 0, 511, 0, 0);
 663                 input_set_abs_params(input, ABS_DISTANCE, 0, 32, 0, 0);
 664                 break;
 665         case USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH:
 666                 __set_bit(ABS_WHEEL, input->absbit);
 667                 __set_bit(ABS_MISC, input->absbit);
 668                 __set_bit(BTN_2, input->keybit);
 669                 __set_bit(BTN_3, input->keybit);
 670                 __set_bit(BTN_4, input->keybit);
 671                 __set_bit(BTN_5, input->keybit);
 672                 __set_bit(BTN_6, input->keybit);
 673                 __set_bit(BTN_7, input->keybit);
 674                 __set_bit(BTN_8, input->keybit);
 675                 input_set_abs_params(input, ABS_WHEEL, 0, 71, 0, 0);
 676                 input_set_abs_params(input, ABS_X, 0, 40640, 4, 0);
 677                 input_set_abs_params(input, ABS_Y, 0, 25400, 4, 0);
 678                 input_set_abs_params(input, ABS_PRESSURE, 0, 2047, 0, 0);
 679                 input_set_abs_params(input, ABS_DISTANCE, 0, 63, 0, 0);
 680                 input_set_abs_params(input, ABS_TILT_X, 0, 127, 0, 0);
 681                 input_set_abs_params(input, ABS_TILT_Y, 0, 127, 0, 0);
 682                 break;
 683         }
 684
 685         return 0;
 686 }
 687
 688 static int wacom_probe(struct hid_device *hdev,
 689                 const struct hid_device_id *id)
 690 {
 691         struct wacom_data *wdata;
 692         int ret;
 693
 694         wdata = kzalloc(sizeof(*wdata), GFP_KERNEL);
 695         if (wdata == NULL) {
 696                 hid_err(hdev, "can't alloc wacom descriptor\n");
 697                 return -ENOMEM;
 698         }
 699
 700         hid_set_drvdata(hdev, wdata);
 701
 702         /* Parse the HID report now */
 703         ret = hid_parse(hdev);
 704         if (ret) {
 705                 hid_err(hdev, "parse failed\n");
 706                 goto err_free;
 707         }
 708
 709         ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
 710         if (ret) {
 711                 hid_err(hdev, "hw start failed\n");
 712                 goto err_free;
 713         }
 714
 715         ret = device_create_file(&hdev->dev, &dev_attr_speed);
 716         if (ret)
 717                 hid_warn(hdev,
 718                          "can't create sysfs speed attribute err: %d\n", ret);
 719
 720         wdata->features = 0;
 721         wacom_set_features(hdev, 1);
 722
 723         if (hdev->product == USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) {
 724                 sprintf(hdev->name, "%s", "Wacom Intuos4 WL");
 725                 ret = wacom_initialize_leds(hdev);
 726                 if (ret) {
 727                         hid_warn(hdev,
 728                                  "can't create led attribute, err: %d\n", ret);
 729                         goto destroy_leds;
 730                 }
 731         }
 732
 733         wdata->battery.properties = wacom_battery_props;
 734         wdata->battery.num_properties = ARRAY_SIZE(wacom_battery_props);
 735         wdata->battery.get_property = wacom_battery_get_property;
 736         wdata->battery.name = "wacom_battery";
 737         wdata->battery.type = POWER_SUPPLY_TYPE_BATTERY;
 738         wdata->battery.use_for_apm = 0;
 739
 740
 741         ret = power_supply_register(&hdev->dev, &wdata->battery);
 742         if (ret) {
 743                 hid_warn(hdev, "can't create sysfs battery attribute, err: %d\n",
 744                          ret);
 745                 goto err_battery;
 746         }
 747
 748         power_supply_powers(&wdata->battery, &hdev->dev);
 749
 750         wdata->ac.properties = wacom_ac_props;
 751         wdata->ac.num_properties = ARRAY_SIZE(wacom_ac_props);
 752         wdata->ac.get_property = wacom_ac_get_property;
 753         wdata->ac.name = "wacom_ac";
 754         wdata->ac.type = POWER_SUPPLY_TYPE_MAINS;
 755         wdata->ac.use_for_apm = 0;
 756
 757         ret = power_supply_register(&hdev->dev, &wdata->ac);
 758         if (ret) {
 759                 hid_warn(hdev,
 760                          "can't create ac battery attribute, err: %d\n", ret);
 761                 goto err_ac;
 762         }
 763
 764         power_supply_powers(&wdata->ac, &hdev->dev);
 765         return 0;
 766
 767 err_ac:
 768         power_supply_unregister(&wdata->battery);
 769 err_battery:
 770         device_remove_file(&hdev->dev, &dev_attr_speed);
 771         hid_hw_stop(hdev);
 772 destroy_leds:
 773         wacom_destroy_leds(hdev);
 774 err_free:
 775         kfree(wdata);
 776         return ret;
 777 }
 778
 779 static void wacom_remove(struct hid_device *hdev)
 780 {
 781         struct wacom_data *wdata = hid_get_drvdata(hdev);
 782
 783         wacom_destroy_leds(hdev);
 784         device_remove_file(&hdev->dev, &dev_attr_speed);
 785         hid_hw_stop(hdev);
 786
 787         power_supply_unregister(&wdata->battery);
 788         power_supply_unregister(&wdata->ac);
 789         kfree(hid_get_drvdata(hdev));
 790 }
 791
 792 static const struct hid_device_id wacom_devices[] = {
 793         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
 794         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) },
 795
 796         { }
 797 };
 798 MODULE_DEVICE_TABLE(hid, wacom_devices);
 799
 800 static struct hid_driver wacom_driver = {
 801         .name = "wacom",
 802         .id_table = wacom_devices,
 803         .probe = wacom_probe,
 804         .remove = wacom_remove,
 805         .raw_event = wacom_raw_event,
 806         .input_mapped = wacom_input_mapped,
 807 };
 808
 809 static int __init wacom_init(void)
 810 {
 811         int ret;
 812
 813         ret = hid_register_driver(&wacom_driver);
 814         if (ret)
 815                 pr_err("can't register wacom driver\n");
 816         return ret;
 817 }
 818
 819 static void __exit wacom_exit(void)
 820 {
 821         hid_unregister_driver(&wacom_driver);
 822 }
 823
 824 module_init(wacom_init);
 825 module_exit(wacom_exit);
 826 MODULE_DESCRIPTION("Driver for Wacom Graphire Bluetooth and Wacom Intuos4 WL");
 827 MODULE_LICENSE("GPL");