drivers/usb/input/wacom.c

   1 /*
   2  *  USB Wacom Graphire and Wacom Intuos tablet support
   3  *
   4  *  Copyright (c) 2000-2004 Vojtech Pavlik      <vojtech@ucw.cz>
   5  *  Copyright (c) 2000 Andreas Bach Aaen        <abach@stofanet.dk>
   6  *  Copyright (c) 2000 Clifford Wolf            <clifford@clifford.at>
   7  *  Copyright (c) 2000 Sam Mosel                <sam.mosel@computer.org>
   8  *  Copyright (c) 2000 James E. Blair           <corvus@gnu.org>
   9  *  Copyright (c) 2000 Daniel Egger             <egger@suse.de>
  10  *  Copyright (c) 2001 Frederic Lepied          <flepied@mandrakesoft.com>
  11  *  Copyright (c) 2004 Panagiotis Issaris       <panagiotis.issaris@mech.kuleuven.ac.be>
  12  *  Copyright (c) 2002-2006 Ping Cheng          <pingc@wacom.com>
  13  *
  14  *  ChangeLog:
  15  *      v0.1 (vp)  - Initial release
  16  *      v0.2 (aba) - Support for all buttons / combinations
  17  *      v0.3 (vp)  - Support for Intuos added
  18  *      v0.4 (sm)  - Support for more Intuos models, menustrip
  19  *                      relative mode, proximity.
  20  *      v0.5 (vp)  - Big cleanup, nifty features removed,
  21  *                      they belong in userspace
  22  *      v1.8 (vp)  - Submit URB only when operating, moved to CVS,
  23  *                      use input_report_key instead of report_btn and
  24  *                      other cleanups
  25  *      v1.11 (vp) - Add URB ->dev setting for new kernels
  26  *      v1.11 (jb) - Add support for the 4D Mouse & Lens
  27  *      v1.12 (de) - Add support for two more inking pen IDs
  28  *      v1.14 (vp) - Use new USB device id probing scheme.
  29  *                   Fix Wacom Graphire mouse wheel
  30  *      v1.18 (vp) - Fix mouse wheel direction
  31  *                   Make mouse relative
  32  *      v1.20 (fl) - Report tool id for Intuos devices
  33  *                 - Multi tools support
  34  *                 - Corrected Intuos protocol decoding (airbrush, 4D mouse, lens cursor...)
  35  *                 - Add PL models support
  36  *                 - Fix Wacom Graphire mouse wheel again
  37  *      v1.21 (vp) - Removed protocol descriptions
  38  *                 - Added MISC_SERIAL for tool serial numbers
  39  *            (gb) - Identify version on module load.
  40  *    v1.21.1 (fl) - added Graphire2 support
  41  *    v1.21.2 (fl) - added Intuos2 support
  42  *                 - added all the PL ids
  43  *    v1.21.3 (fl) - added another eraser id from Neil Okamoto
  44  *                 - added smooth filter for Graphire from Peri Hankey
  45  *                 - added PenPartner support from Olaf van Es
  46  *                 - new tool ids from Ole Martin Bjoerndalen
  47  *      v1.29 (pc) - Add support for more tablets
  48  *                 - Fix pressure reporting
  49  *      v1.30 (vp) - Merge 2.4 and 2.5 drivers
  50  *                 - Since 2.5 now has input_sync(), remove MSC_SERIAL abuse
  51  *                 - Cleanups here and there
  52  *    v1.30.1 (pi) - Added Graphire3 support
  53  *      v1.40 (pc) - Add support for several new devices, fix eraser reporting, ...
  54  *      v1.43 (pc) - Added support for Cintiq 21UX
  55  *                 - Fixed a Graphire bug
  56  *                 - Merged wacom_intuos3_irq into wacom_intuos_irq
  57  *      v1.44 (pc) - Added support for Graphire4, Cintiq 710, Intuos3 6x11, etc.
  58  *                 - Report Device IDs
  59  *      v1.45 (pc) - Added support for DTF 521, Intuos3 12x12 and 12x19
  60  *                 - Minor data report fix
  61  */
  62
  63 /*
  64  * This program is free software; you can redistribute it and/or modify
  65  * it under the terms of the GNU General Public License as published by
  66  * the Free Software Foundation; either version 2 of the License, or
  67  * (at your option) any later version.
  68  */
  69
  70 #include <linux/kernel.h>
  71 #include <linux/slab.h>
  72 #include <linux/input.h>
  73 #include <linux/module.h>
  74 #include <linux/init.h>
  75 #include <linux/usb.h>
  76 #include <linux/usb_input.h>
  77 #include <asm/unaligned.h>
  78 #include <asm/byteorder.h>
  79
  80 /*
  81  * Version Information
  82  */
  83 #define DRIVER_VERSION "v1.45"
  84 #define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@ucw.cz>"
  85 #define DRIVER_DESC "USB Wacom Graphire and Wacom Intuos tablet driver"
  86 #define DRIVER_LICENSE "GPL"
  87
  88 MODULE_AUTHOR(DRIVER_AUTHOR);
  89 MODULE_DESCRIPTION(DRIVER_DESC);
  90 MODULE_LICENSE(DRIVER_LICENSE);
  91
  92 #define USB_VENDOR_ID_WACOM     0x056a
  93 #define STYLUS_DEVICE_ID        0x02
  94 #define CURSOR_DEVICE_ID        0x06
  95 #define ERASER_DEVICE_ID        0x0A
  96
  97 enum {
  98         PENPARTNER = 0,
  99         GRAPHIRE,
 100         WACOM_G4,
 101         PL,
 102         INTUOS,
 103         INTUOS3,
 104         INTUOS312,
 105         INTUOS319,
 106         CINTIQ,
 107         MAX_TYPE
 108 };
 109
 110 struct wacom_features {
 111         char *name;
 112         int pktlen;
 113         int x_max;
 114         int y_max;
 115         int pressure_max;
 116         int distance_max;
 117         int type;
 118         usb_complete_t irq;
 119 };
 120
 121 struct wacom {
 122         signed char *data;
 123         dma_addr_t data_dma;
 124         struct input_dev *dev;
 125         struct usb_device *usbdev;
 126         struct urb *irq;
 127         struct wacom_features *features;
 128         int tool[2];
 129         int id[2];
 130         __u32 serial[2];
 131         char phys[32];
 132 };
 133
 134 #define USB_REQ_GET_REPORT      0x01
 135 #define USB_REQ_SET_REPORT      0x09
 136
 137 static int usb_get_report(struct usb_interface *intf, unsigned char type,
 138                                 unsigned char id, void *buf, int size)
 139 {
 140         return usb_control_msg(interface_to_usbdev(intf),
 141                 usb_rcvctrlpipe(interface_to_usbdev(intf), 0),
 142                 USB_REQ_GET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE,
 143                 (type << 8) + id, intf->altsetting[0].desc.bInterfaceNumber,
 144                 buf, size, 100);
 145 }
 146
 147 static int usb_set_report(struct usb_interface *intf, unsigned char type,
 148                                 unsigned char id, void *buf, int size)
 149 {
 150         return usb_control_msg(interface_to_usbdev(intf),
 151                 usb_sndctrlpipe(interface_to_usbdev(intf), 0),
 152                 USB_REQ_SET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE,
 153                 (type << 8) + id, intf->altsetting[0].desc.bInterfaceNumber,
 154                 buf, size, 1000);
 155 }
 156
 157 static void wacom_pl_irq(struct urb *urb, struct pt_regs *regs)
 158 {
 159         struct wacom *wacom = urb->context;
 160         unsigned char *data = wacom->data;
 161         struct input_dev *dev = wacom->dev;
 162         int prox, pressure, id;
 163         int retval;
 164
 165         switch (urb->status) {
 166         case 0:
 167                 /* success */
 168                 break;
 169         case -ECONNRESET:
 170         case -ENOENT:
 171         case -ESHUTDOWN:
 172                 /* this urb is terminated, clean up */
 173                 dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
 174                 return;
 175         default:
 176                 dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
 177                 goto exit;
 178         }
 179
 180         if (data[0] != 2) {
 181                 dbg("wacom_pl_irq: received unknown report #%d", data[0]);
 182                 goto exit;
 183         }
 184
 185         prox = data[1] & 0x40;
 186
 187         input_regs(dev, regs);
 188
 189         id = ERASER_DEVICE_ID;
 190         if (prox) {
 191
 192                 pressure = (signed char)((data[7] << 1) | ((data[4] >> 2) & 1));
 193                 if (wacom->features->pressure_max > 255)
 194                         pressure = (pressure << 1) | ((data[4] >> 6) & 1);
 195                 pressure += (wacom->features->pressure_max + 1) / 2;
 196
 197                 /*
 198                  * if going from out of proximity into proximity select between the eraser
 199                  * and the pen based on the state of the stylus2 button, choose eraser if
 200                  * pressed else choose pen. if not a proximity change from out to in, send
 201                  * an out of proximity for previous tool then a in for new tool.
 202                  */
 203                 if (!wacom->tool[0]) {
 204                         /* Eraser bit set for DTF */
 205                         if (data[1] & 0x10)
 206                                 wacom->tool[1] = BTN_TOOL_RUBBER;
 207                         else
 208                                 /* Going into proximity select tool */
 209                                 wacom->tool[1] = (data[4] & 0x20) ? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
 210                 } else {
 211                         /* was entered with stylus2 pressed */
 212                         if (wacom->tool[1] == BTN_TOOL_RUBBER && !(data[4] & 0x20)) {
 213                                 /* report out proximity for previous tool */
 214                                 input_report_key(dev, wacom->tool[1], 0);
 215                                 input_sync(dev);
 216                                 wacom->tool[1] = BTN_TOOL_PEN;
 217                                 goto exit;
 218                         }
 219                 }
 220                 if (wacom->tool[1] != BTN_TOOL_RUBBER) {
 221                         /* Unknown tool selected default to pen tool */
 222                         wacom->tool[1] = BTN_TOOL_PEN;
 223                         id = STYLUS_DEVICE_ID;
 224                 }
 225                 input_report_key(dev, wacom->tool[1], prox); /* report in proximity for tool */
 226                 input_report_abs(dev, ABS_MISC, id); /* report tool id */
 227                 input_report_abs(dev, ABS_X, data[3] | (data[2] << 7) | ((data[1] & 0x03) << 14));
 228                 input_report_abs(dev, ABS_Y, data[6] | (data[5] << 7) | ((data[4] & 0x03) << 14));
 229                 input_report_abs(dev, ABS_PRESSURE, pressure);
 230
 231                 input_report_key(dev, BTN_TOUCH, data[4] & 0x08);
 232                 input_report_key(dev, BTN_STYLUS, data[4] & 0x10);
 233                 /* Only allow the stylus2 button to be reported for the pen tool. */
 234                 input_report_key(dev, BTN_STYLUS2, (wacom->tool[1] == BTN_TOOL_PEN) && (data[4] & 0x20));
 235         } else {
 236                 /* report proximity-out of a (valid) tool */
 237                 if (wacom->tool[1] != BTN_TOOL_RUBBER) {
 238                         /* Unknown tool selected default to pen tool */
 239                         wacom->tool[1] = BTN_TOOL_PEN;
 240                 }
 241                 input_report_key(dev, wacom->tool[1], prox);
 242         }
 243
 244         wacom->tool[0] = prox; /* Save proximity state */
 245         input_sync(dev);
 246
 247  exit:
 248         retval = usb_submit_urb (urb, GFP_ATOMIC);
 249         if (retval)
 250                 err ("%s - usb_submit_urb failed with result %d",
 251                      __FUNCTION__, retval);
 252 }
 253
 254 static void wacom_ptu_irq(struct urb *urb, struct pt_regs *regs)
 255 {
 256         struct wacom *wacom = urb->context;
 257         unsigned char *data = wacom->data;
 258         struct input_dev *dev = wacom->dev;
 259         int retval, id;
 260
 261         switch (urb->status) {
 262         case 0:
 263                 /* success */
 264                 break;
 265         case -ECONNRESET:
 266         case -ENOENT:
 267         case -ESHUTDOWN:
 268                 /* this urb is terminated, clean up */
 269                 dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
 270                 return;
 271         default:
 272                 dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
 273                 goto exit;
 274         }
 275
 276         if (data[0] != 2) {
 277                 printk(KERN_INFO "wacom_ptu_irq: received unknown report #%d\n", data[0]);
 278                 goto exit;
 279         }
 280
 281         input_regs(dev, regs);
 282         if (data[1] & 0x04) {
 283                 input_report_key(dev, BTN_TOOL_RUBBER, data[1] & 0x20);
 284                 input_report_key(dev, BTN_TOUCH, data[1] & 0x08);
 285                 id = ERASER_DEVICE_ID;
 286         } else {
 287                 input_report_key(dev, BTN_TOOL_PEN, data[1] & 0x20);
 288                 input_report_key(dev, BTN_TOUCH, data[1] & 0x01);
 289                 id = STYLUS_DEVICE_ID;
 290         }
 291         input_report_abs(dev, ABS_MISC, id); /* report tool id */
 292         input_report_abs(dev, ABS_X, le16_to_cpu(*(__le16 *) &data[2]));
 293         input_report_abs(dev, ABS_Y, le16_to_cpu(*(__le16 *) &data[4]));
 294         input_report_abs(dev, ABS_PRESSURE, le16_to_cpu(*(__le16 *) &data[6]));
 295         input_report_key(dev, BTN_STYLUS, data[1] & 0x02);
 296         input_report_key(dev, BTN_STYLUS2, data[1] & 0x10);
 297
 298         input_sync(dev);
 299
 300  exit:
 301         retval = usb_submit_urb (urb, GFP_ATOMIC);
 302         if (retval)
 303                 err ("%s - usb_submit_urb failed with result %d",
 304                      __FUNCTION__, retval);
 305 }
 306
 307 static void wacom_penpartner_irq(struct urb *urb, struct pt_regs *regs)
 308 {
 309         struct wacom *wacom = urb->context;
 310         unsigned char *data = wacom->data;
 311         struct input_dev *dev = wacom->dev;
 312         int retval;
 313
 314         switch (urb->status) {
 315         case 0:
 316                 /* success */
 317                 break;
 318         case -ECONNRESET:
 319         case -ENOENT:
 320         case -ESHUTDOWN:
 321                 /* this urb is terminated, clean up */
 322                 dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
 323                 return;
 324         default:
 325                 dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
 326                 goto exit;
 327         }
 328
 329         if (data[0] != 2) {
 330                 printk(KERN_INFO "wacom_penpartner_irq: received unknown report #%d\n", data[0]);
 331                 goto exit;
 332         }
 333
 334         input_regs(dev, regs);
 335         input_report_key(dev, BTN_TOOL_PEN, 1);
 336         input_report_abs(dev, ABS_MISC, STYLUS_DEVICE_ID); /* report tool id */
 337         input_report_abs(dev, ABS_X, le16_to_cpu(*(__le16 *) &data[1]));
 338         input_report_abs(dev, ABS_Y, le16_to_cpu(*(__le16 *) &data[3]));
 339         input_report_abs(dev, ABS_PRESSURE, (signed char)data[6] + 127);
 340         input_report_key(dev, BTN_TOUCH, ((signed char)data[6] > -80) && !(data[5] & 0x20));
 341         input_report_key(dev, BTN_STYLUS, (data[5] & 0x40));
 342         input_sync(dev);
 343
 344  exit:
 345         retval = usb_submit_urb (urb, GFP_ATOMIC);
 346         if (retval)
 347                 err ("%s - usb_submit_urb failed with result %d",
 348                      __FUNCTION__, retval);
 349 }
 350
 351 static void wacom_graphire_irq(struct urb *urb, struct pt_regs *regs)
 352 {
 353         struct wacom *wacom = urb->context;
 354         unsigned char *data = wacom->data;
 355         struct input_dev *dev = wacom->dev;
 356         int x, y, id, rw;
 357         int retval;
 358
 359         switch (urb->status) {
 360         case 0:
 361                 /* success */
 362                 break;
 363         case -ECONNRESET:
 364         case -ENOENT:
 365         case -ESHUTDOWN:
 366                 /* this urb is terminated, clean up */
 367                 dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
 368                 return;
 369         default:
 370                 dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
 371                 goto exit;
 372         }
 373
 374         if (data[0] == 99) return; /* for Volito tablets */
 375
 376         if (data[0] != 2) {
 377                 dbg("wacom_graphire_irq: received unknown report #%d", data[0]);
 378                 goto exit;
 379         }
 380
 381         input_regs(dev, regs);
 382
 383         id = STYLUS_DEVICE_ID;
 384         if (data[1] & 0x10) { /* in prox */
 385
 386                 switch ((data[1] >> 5) & 3) {
 387
 388                         case 0: /* Pen */
 389                                 wacom->tool[0] = BTN_TOOL_PEN;
 390                                 break;
 391
 392                         case 1: /* Rubber */
 393                                 wacom->tool[0] = BTN_TOOL_RUBBER;
 394                                 id = ERASER_DEVICE_ID;
 395                                 break;
 396
 397                         case 2: /* Mouse with wheel */
 398                                 input_report_key(dev, BTN_MIDDLE, data[1] & 0x04);
 399                                 if (wacom->features->type == WACOM_G4) {
 400                                         rw = data[7] & 0x04 ? (data[7] & 0x03)-4 : (data[7] & 0x03);
 401                                         input_report_rel(dev, REL_WHEEL, -rw);
 402                                 } else
 403                                         input_report_rel(dev, REL_WHEEL, -(signed char) data[6]);
 404                                 /* fall through */
 405
 406                         case 3: /* Mouse without wheel */
 407                                 wacom->tool[0] = BTN_TOOL_MOUSE;
 408                                 id = CURSOR_DEVICE_ID;
 409                                 input_report_key(dev, BTN_LEFT, data[1] & 0x01);
 410                                 input_report_key(dev, BTN_RIGHT, data[1] & 0x02);
 411                                 if (wacom->features->type == WACOM_G4)
 412                                         input_report_abs(dev, ABS_DISTANCE, data[6]);
 413                                 else
 414                                         input_report_abs(dev, ABS_DISTANCE, data[7]);
 415                                 break;
 416                 }
 417         }
 418
 419         if (data[1] & 0x90) {
 420                 x = le16_to_cpu(*(__le16 *) &data[2]);
 421                 y = le16_to_cpu(*(__le16 *) &data[4]);
 422                 input_report_abs(dev, ABS_X, x);
 423                 input_report_abs(dev, ABS_Y, y);
 424                 if (wacom->tool[0] != BTN_TOOL_MOUSE) {
 425                         input_report_abs(dev, ABS_PRESSURE, data[6] | ((data[7] & 0x01) << 8));
 426                         input_report_key(dev, BTN_TOUCH, data[1] & 0x01);
 427                         input_report_key(dev, BTN_STYLUS, data[1] & 0x02);
 428                         input_report_key(dev, BTN_STYLUS2, data[1] & 0x04);
 429                 }
 430         }
 431
 432         if (data[1] & 0x10)
 433                 input_report_abs(dev, ABS_MISC, id); /* report tool id */
 434         else
 435                 input_report_abs(dev, ABS_MISC, 0); /* reset tool id */
 436         input_report_key(dev, wacom->tool[0], data[1] & 0x10);
 437         input_sync(dev);
 438
 439         /* send pad data */
 440         if (wacom->features->type == WACOM_G4) {
 441                 if ((wacom->serial[1] & 0xc0) != (data[7] & 0xf8)) {
 442                         wacom->id[1] = 1;
 443                         wacom->serial[1] = (data[7] & 0xf8);
 444                         input_report_key(dev, BTN_0, (data[7] & 0x40));
 445                         input_report_key(dev, BTN_4, (data[7] & 0x80));
 446                         rw = ((data[7] & 0x18) >> 3) - ((data[7] & 0x20) >> 3);
 447                         input_report_rel(dev, REL_WHEEL, rw);
 448                         input_report_key(dev, BTN_TOOL_FINGER, 0xf0);
 449                         input_event(dev, EV_MSC, MSC_SERIAL, 0xf0);
 450                 } else if (wacom->id[1]) {
 451                         wacom->id[1] = 0;
 452                         input_report_key(dev, BTN_TOOL_FINGER, 0);
 453                         input_event(dev, EV_MSC, MSC_SERIAL, 0xf0);
 454                 }
 455                 input_sync(dev);
 456         }
 457  exit:
 458         retval = usb_submit_urb (urb, GFP_ATOMIC);
 459         if (retval)
 460                 err ("%s - usb_submit_urb failed with result %d",
 461                      __FUNCTION__, retval);
 462 }
 463
 464 static int wacom_intuos_inout(struct urb *urb)
 465 {
 466         struct wacom *wacom = urb->context;
 467         unsigned char *data = wacom->data;
 468         struct input_dev *dev = wacom->dev;
 469         int idx;
 470
 471         /* tool number */
 472         idx = data[1] & 0x01;
 473
 474         /* Enter report */
 475         if ((data[1] & 0xfc) == 0xc0) {
 476                 /* serial number of the tool */
 477                 wacom->serial[idx] = ((data[3] & 0x0f) << 28) +
 478                         (data[4] << 20) + (data[5] << 12) +
 479                         (data[6] << 4) + (data[7] >> 4);
 480
 481                 wacom->id[idx] = (data[2] << 4) | (data[3] >> 4);
 482                 switch (wacom->id[idx]) {
 483                         case 0x812: /* Inking pen */
 484                         case 0x801: /* Intuos3 Inking pen */
 485                         case 0x012:
 486                                 wacom->tool[idx] = BTN_TOOL_PENCIL;
 487                                 break;
 488                         case 0x822: /* Pen */
 489                         case 0x842:
 490                         case 0x852:
 491                         case 0x823: /* Intuos3 Grip Pen */
 492                         case 0x813: /* Intuos3 Classic Pen */
 493                         case 0x885: /* Intuos3 Marker Pen */
 494                         case 0x022:
 495                                 wacom->tool[idx] = BTN_TOOL_PEN;
 496                                 break;
 497                         case 0x832: /* Stroke pen */
 498                         case 0x032:
 499                                 wacom->tool[idx] = BTN_TOOL_BRUSH;
 500                                 break;
 501                         case 0x007: /* Mouse 4D and 2D */
 502                         case 0x09c:
 503                         case 0x094:
 504                         case 0x017: /* Intuos3 2D Mouse */
 505                                 wacom->tool[idx] = BTN_TOOL_MOUSE;
 506                                 break;
 507                         case 0x096: /* Lens cursor */
 508                         case 0x097: /* Intuos3 Lens cursor */
 509                                 wacom->tool[idx] = BTN_TOOL_LENS;
 510                                 break;
 511                         case 0x82a: /* Eraser */
 512                         case 0x85a:
 513                         case 0x91a:
 514                         case 0xd1a:
 515                         case 0x0fa:
 516                         case 0x82b: /* Intuos3 Grip Pen Eraser */
 517                         case 0x81b: /* Intuos3 Classic Pen Eraser */
 518                         case 0x91b: /* Intuos3 Airbrush Eraser */
 519                                 wacom->tool[idx] = BTN_TOOL_RUBBER;
 520                                 break;
 521                         case 0xd12:
 522                         case 0x912:
 523                         case 0x112:
 524                         case 0x913: /* Intuos3 Airbrush */
 525                                 wacom->tool[idx] = BTN_TOOL_AIRBRUSH;
 526                                 break;
 527                         default: /* Unknown tool */
 528                                 wacom->tool[idx] = BTN_TOOL_PEN;
 529                 }
 530                 if(!((wacom->tool[idx] == BTN_TOOL_LENS) &&
 531                                 ((wacom->features->type == INTUOS312)
 532                                         || (wacom->features->type == INTUOS319)))) {
 533                         input_report_abs(dev, ABS_MISC, wacom->id[idx]); /* report tool id */
 534                         input_report_key(dev, wacom->tool[idx], 1);
 535                         input_event(dev, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
 536                         input_sync(dev);
 537                 }
 538                 return 1;
 539         }
 540
 541         /* Exit report */
 542         if ((data[1] & 0xfe) == 0x80) {
 543                 input_report_key(dev, wacom->tool[idx], 0);
 544                 input_report_abs(dev, ABS_MISC, 0); /* reset tool id */
 545                 input_event(dev, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
 546                 input_sync(dev);
 547                 return 1;
 548         }
 549
 550         if((wacom->tool[idx] == BTN_TOOL_LENS) && ((wacom->features->type == INTUOS312)
 551                         || (wacom->features->type == INTUOS319)))
 552                 return 1;
 553         else
 554                 return 0;
 555 }
 556
 557 static void wacom_intuos_general(struct urb *urb)
 558 {
 559         struct wacom *wacom = urb->context;
 560         unsigned char *data = wacom->data;
 561         struct input_dev *dev = wacom->dev;
 562         unsigned int t;
 563
 564         /* general pen packet */
 565         if ((data[1] & 0xb8) == 0xa0) {
 566                 t = (data[6] << 2) | ((data[7] >> 6) & 3);
 567                 input_report_abs(dev, ABS_PRESSURE, t);
 568                 input_report_abs(dev, ABS_TILT_X,
 569                                 ((data[7] << 1) & 0x7e) | (data[8] >> 7));
 570                 input_report_abs(dev, ABS_TILT_Y, data[8] & 0x7f);
 571                 input_report_key(dev, BTN_STYLUS, data[1] & 2);
 572                 input_report_key(dev, BTN_STYLUS2, data[1] & 4);
 573                 input_report_key(dev, BTN_TOUCH, t > 10);
 574         }
 575
 576         /* airbrush second packet */
 577         if ((data[1] & 0xbc) == 0xb4) {
 578                 input_report_abs(dev, ABS_WHEEL,
 579                                 (data[6] << 2) | ((data[7] >> 6) & 3));
 580                 input_report_abs(dev, ABS_TILT_X,
 581                                 ((data[7] << 1) & 0x7e) | (data[8] >> 7));
 582                 input_report_abs(dev, ABS_TILT_Y, data[8] & 0x7f);
 583         }
 584         return;
 585 }
 586
 587 static void wacom_intuos_irq(struct urb *urb, struct pt_regs *regs)
 588 {
 589         struct wacom *wacom = urb->context;
 590         unsigned char *data = wacom->data;
 591         struct input_dev *dev = wacom->dev;
 592         unsigned int t;
 593         int idx;
 594         int retval;
 595
 596         switch (urb->status) {
 597         case 0:
 598                 /* success */
 599                 break;
 600         case -ECONNRESET:
 601         case -ENOENT:
 602         case -ESHUTDOWN:
 603                 /* this urb is terminated, clean up */
 604                 dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
 605                 return;
 606         default:
 607                 dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
 608                 goto exit;
 609         }
 610
 611         if (data[0] != 2 && data[0] != 5 && data[0] != 6 && data[0] != 12) {
 612                 dbg("wacom_intuos_irq: received unknown report #%d", data[0]);
 613                 goto exit;
 614         }
 615
 616         input_regs(dev, regs);
 617
 618         /* tool number */
 619         idx = data[1] & 0x01;
 620
 621         /* pad packets. Works as a second tool and is always in prox */
 622         if (data[0] == 12) {
 623                 /* initiate the pad as a device */
 624                 if (wacom->tool[1] != BTN_TOOL_FINGER)
 625                         wacom->tool[1] = BTN_TOOL_FINGER;
 626
 627                 input_report_key(dev, BTN_0, (data[5] & 0x01));
 628                 input_report_key(dev, BTN_1, (data[5] & 0x02));
 629                 input_report_key(dev, BTN_2, (data[5] & 0x04));
 630                 input_report_key(dev, BTN_3, (data[5] & 0x08));
 631                 input_report_key(dev, BTN_4, (data[6] & 0x01));
 632                 input_report_key(dev, BTN_5, (data[6] & 0x02));
 633                 input_report_key(dev, BTN_6, (data[6] & 0x04));
 634                 input_report_key(dev, BTN_7, (data[6] & 0x08));
 635                 input_report_abs(dev, ABS_RX, ((data[1] & 0x1f) << 8) | data[2]);
 636                 input_report_abs(dev, ABS_RY, ((data[3] & 0x1f) << 8) | data[4]);
 637
 638                 if((data[5] & 0x0f) | (data[6] & 0x0f) | (data[1] & 0x1f) | data[2])
 639                         input_report_key(dev, wacom->tool[1], 1);
 640                 else
 641                         input_report_key(dev, wacom->tool[1], 0);
 642                 input_event(dev, EV_MSC, MSC_SERIAL, 0xffffffff);
 643                 input_sync(dev);
 644                 goto exit;
 645         }
 646
 647         /* process in/out prox events */
 648         if (wacom_intuos_inout(urb))
 649                 goto exit;
 650
 651         /* Cintiq doesn't send data when RDY bit isn't set */
 652         if ((wacom->features->type == CINTIQ) && !(data[1] & 0x40))
 653                 goto exit;
 654
 655         if (wacom->features->type >= INTUOS3) {
 656                 input_report_abs(dev, ABS_X, (data[2] << 9) | (data[3] << 1) | ((data[9] >> 1) & 1));
 657                 input_report_abs(dev, ABS_Y, (data[4] << 9) | (data[5] << 1) | (data[9] & 1));
 658                 input_report_abs(dev, ABS_DISTANCE, ((data[9] >> 2) & 0x3f));
 659         } else {
 660                 input_report_abs(dev, ABS_X, be16_to_cpu(*(__be16 *) &data[2]));
 661                 input_report_abs(dev, ABS_Y, be16_to_cpu(*(__be16 *) &data[4]));
 662                 input_report_abs(dev, ABS_DISTANCE, ((data[9] >> 3) & 0x1f));
 663         }
 664
 665         /* process general packets */
 666         wacom_intuos_general(urb);
 667
 668         /* 4D mouse, 2D mouse, marker pen rotation, or Lens cursor packets */
 669         if ((data[1] & 0xbc) == 0xa8 || (data[1] & 0xbe) == 0xb0) {
 670
 671                 if (data[1] & 0x02) {
 672                         /* Rotation packet */
 673                         if (wacom->features->type >= INTUOS3) {
 674                                 /* I3 marker pen rotation reported as wheel
 675                                  * due to valuator limitation
 676                                  */
 677                                 t = (data[6] << 3) | ((data[7] >> 5) & 7);
 678                                 t = (data[7] & 0x20) ? ((t > 900) ? ((t-1) / 2 - 1350) :
 679                                         ((t-1) / 2 + 450)) : (450 - t / 2) ;
 680                                 input_report_abs(dev, ABS_WHEEL, t);
 681                         } else {
 682                                 /* 4D mouse rotation packet */
 683                                 t = (data[6] << 3) | ((data[7] >> 5) & 7);
 684                                 input_report_abs(dev, ABS_RZ, (data[7] & 0x20) ?
 685                                         ((t - 1) / 2) : -t / 2);
 686                         }
 687
 688                 } else if (!(data[1] & 0x10) && wacom->features->type < INTUOS3) {
 689                         /* 4D mouse packet */
 690                         input_report_key(dev, BTN_LEFT,   data[8] & 0x01);
 691                         input_report_key(dev, BTN_MIDDLE, data[8] & 0x02);
 692                         input_report_key(dev, BTN_RIGHT,  data[8] & 0x04);
 693
 694                         input_report_key(dev, BTN_SIDE,   data[8] & 0x20);
 695                         input_report_key(dev, BTN_EXTRA,  data[8] & 0x10);
 696                         t = (data[6] << 2) | ((data[7] >> 6) & 3);
 697                         input_report_abs(dev, ABS_THROTTLE, (data[8] & 0x08) ? -t : t);
 698
 699                 } else if (wacom->tool[idx] == BTN_TOOL_MOUSE) {
 700                         /* 2D mouse packet */
 701                         input_report_key(dev, BTN_LEFT,   data[8] & 0x04);
 702                         input_report_key(dev, BTN_MIDDLE, data[8] & 0x08);
 703                         input_report_key(dev, BTN_RIGHT,  data[8] & 0x10);
 704                         input_report_rel(dev, REL_WHEEL, (data[8] & 0x01)
 705                                                  - ((data[8] & 0x02) >> 1));
 706
 707                         /* I3 2D mouse side buttons */
 708                         if (wacom->features->type == INTUOS3) {
 709                                 input_report_key(dev, BTN_SIDE,   data[8] & 0x40);
 710                                 input_report_key(dev, BTN_EXTRA,  data[8] & 0x20);
 711                         }
 712
 713                 } else if (wacom->features->type < INTUOS3) {
 714                         /* Lens cursor packets */
 715                         input_report_key(dev, BTN_LEFT,   data[8] & 0x01);
 716                         input_report_key(dev, BTN_MIDDLE, data[8] & 0x02);
 717                         input_report_key(dev, BTN_RIGHT,  data[8] & 0x04);
 718                         input_report_key(dev, BTN_SIDE,   data[8] & 0x10);
 719                         input_report_key(dev, BTN_EXTRA,  data[8] & 0x08);
 720                 }
 721         }
 722
 723         input_report_abs(dev, ABS_MISC, wacom->id[idx]); /* report tool id */
 724         input_report_key(dev, wacom->tool[idx], 1);
 725         input_event(dev, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
 726         input_sync(dev);
 727
 728 exit:
 729         retval = usb_submit_urb (urb, GFP_ATOMIC);
 730         if (retval)
 731                 err ("%s - usb_submit_urb failed with result %d",
 732                     __FUNCTION__, retval);
 733 }
 734
 735 static struct wacom_features wacom_features[] = {
 736         { "Wacom Penpartner",    7,   5040,  3780,  255, 32, PENPARTNER, wacom_penpartner_irq },
 737         { "Wacom Graphire",      8,  10206,  7422,  511, 32, GRAPHIRE,   wacom_graphire_irq },
 738         { "Wacom Graphire2 4x5", 8,  10206,  7422,  511, 32, GRAPHIRE,   wacom_graphire_irq },
 739         { "Wacom Graphire2 5x7", 8,  13918, 10206,  511, 32, GRAPHIRE,   wacom_graphire_irq },
 740         { "Wacom Graphire3",     8,  10208,  7424,  511, 32, GRAPHIRE,   wacom_graphire_irq },
 741         { "Wacom Graphire3 6x8", 8,  16704, 12064,  511, 32, GRAPHIRE,   wacom_graphire_irq },
 742         { "Wacom Graphire4 4x5", 8,  10208,  7424,  511, 32, WACOM_G4,   wacom_graphire_irq },
 743         { "Wacom Graphire4 6x8", 8,  16704, 12064,  511, 32, WACOM_G4,   wacom_graphire_irq },
 744         { "Wacom Volito",        8,   5104,  3712,  511, 32, GRAPHIRE,   wacom_graphire_irq },
 745         { "Wacom PenStation2",   8,   3250,  2320,  255, 32, GRAPHIRE,   wacom_graphire_irq },
 746         { "Wacom Volito2 4x5",   8,   5104,  3712,  511, 32, GRAPHIRE,   wacom_graphire_irq },
 747         { "Wacom Volito2 2x3",   8,   3248,  2320,  511, 32, GRAPHIRE,   wacom_graphire_irq },
 748         { "Wacom PenPartner2",   8,   3250,  2320,  255, 32, GRAPHIRE,   wacom_graphire_irq },
 749         { "Wacom Intuos 4x5",   10,  12700, 10600, 1023, 15, INTUOS,     wacom_intuos_irq },
 750         { "Wacom Intuos 6x8",   10,  20320, 16240, 1023, 15, INTUOS,     wacom_intuos_irq },
 751         { "Wacom Intuos 9x12",  10,  30480, 24060, 1023, 15, INTUOS,     wacom_intuos_irq },
 752         { "Wacom Intuos 12x12", 10,  30480, 31680, 1023, 15, INTUOS,     wacom_intuos_irq },
 753         { "Wacom Intuos 12x18", 10,  45720, 31680, 1023, 15, INTUOS,     wacom_intuos_irq },
 754         { "Wacom PL400",         8,   5408,  4056,  255, 32, PL,         wacom_pl_irq },
 755         { "Wacom PL500",         8,   6144,  4608,  255, 32, PL,         wacom_pl_irq },
 756         { "Wacom PL600",         8,   6126,  4604,  255, 32, PL,         wacom_pl_irq },
 757         { "Wacom PL600SX",       8,   6260,  5016,  255, 32, PL,         wacom_pl_irq },
 758         { "Wacom PL550",         8,   6144,  4608,  511, 32, PL,         wacom_pl_irq },
 759         { "Wacom PL800",         8,   7220,  5780,  511, 32, PL,         wacom_pl_irq },
 760         { "Wacom PL700",         8,   6758,  5406,  511, 32, PL,         wacom_pl_irq },
 761         { "Wacom PL510",         8,   6282,  4762,  511, 32, PL,         wacom_pl_irq },
 762         { "Wacom DTU710",        8,  34080, 27660,  511, 32, PL,         wacom_pl_irq },
 763         { "Wacom DTF521",        8,   6282,  4762,  511, 32, PL,         wacom_pl_irq },
 764         { "Wacom DTF720",        8,   6858,  5506,  511, 32, PL,         wacom_pl_irq },
 765         { "Wacom Cintiq Partner",8,  20480, 15360,  511, 32, PL,         wacom_ptu_irq },
 766         { "Wacom Intuos2 4x5",   10, 12700, 10600, 1023, 15, INTUOS,     wacom_intuos_irq },
 767         { "Wacom Intuos2 6x8",   10, 20320, 16240, 1023, 15, INTUOS,     wacom_intuos_irq },
 768         { "Wacom Intuos2 9x12",  10, 30480, 24060, 1023, 15, INTUOS,     wacom_intuos_irq },
 769         { "Wacom Intuos2 12x12", 10, 30480, 31680, 1023, 15, INTUOS,     wacom_intuos_irq },
 770         { "Wacom Intuos2 12x18", 10, 45720, 31680, 1023, 15, INTUOS,     wacom_intuos_irq },
 771         { "Wacom Intuos3 4x5",   10, 25400, 20320, 1023, 15, INTUOS3,    wacom_intuos_irq },
 772         { "Wacom Intuos3 6x8",   10, 40640, 30480, 1023, 15, INTUOS3,    wacom_intuos_irq },
 773         { "Wacom Intuos3 9x12",  10, 60960, 45720, 1023, 15, INTUOS3,    wacom_intuos_irq },
 774         { "Wacom Intuos3 12x12", 10, 60960, 60960, 1023, 15, INTUOS312,  wacom_intuos_irq },
 775         { "Wacom Intuos3 12x19", 10, 97536, 60960, 1023, 15, INTUOS319,  wacom_intuos_irq },
 776         { "Wacom Intuos3 6x11",  10, 54204, 31750, 1023, 15, INTUOS3,    wacom_intuos_irq },
 777         { "Wacom Cintiq 21UX",   10, 87200, 65600, 1023, 15, CINTIQ,     wacom_intuos_irq },
 778         { "Wacom Intuos2 6x8",   10, 20320, 16240, 1023, 15, INTUOS,     wacom_intuos_irq },
 779         { }
 780 };
 781
 782 static struct usb_device_id wacom_ids[] = {
 783         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x00) },
 784         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x10) },
 785         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x11) },
 786         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x12) },
 787         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x13) },
 788         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x14) },
 789         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x15) },
 790         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x16) },
 791         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x60) },
 792         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x61) },
 793         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x62) },
 794         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x63) },
 795         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x64) },
 796         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x20) },
 797         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x21) },
 798         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x22) },
 799         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x23) },
 800         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x24) },
 801         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x30) },
 802         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x31) },
 803         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x32) },
 804         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x33) },
 805         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x34) },
 806         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x35) },
 807         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x37) },
 808         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x38) },
 809         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x39) },
 810         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xC0) },
 811         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xC3) },
 812         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x03) },
 813         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x41) },
 814         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x42) },
 815         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x43) },
 816         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x44) },
 817         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x45) },
 818         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB0) },
 819         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB1) },
 820         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB2) },
 821         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB3) },
 822         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB4) },
 823         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB5) },
 824         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x3F) },
 825         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x47) },
 826         { }
 827 };
 828
 829 MODULE_DEVICE_TABLE(usb, wacom_ids);
 830
 831 static int wacom_open(struct input_dev *dev)
 832 {
 833         struct wacom *wacom = dev->private;
 834
 835         wacom->irq->dev = wacom->usbdev;
 836         if (usb_submit_urb(wacom->irq, GFP_KERNEL))
 837                 return -EIO;
 838
 839         return 0;
 840 }
 841
 842 static void wacom_close(struct input_dev *dev)
 843 {
 844         struct wacom *wacom = dev->private;
 845
 846         usb_kill_urb(wacom->irq);
 847 }
 848
 849 static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *id)
 850 {
 851         struct usb_device *dev = interface_to_usbdev(intf);
 852         struct usb_endpoint_descriptor *endpoint;
 853         struct wacom *wacom;
 854         struct input_dev *input_dev;
 855         char rep_data[2], limit = 0;
 856
 857         wacom = kzalloc(sizeof(struct wacom), GFP_KERNEL);
 858         input_dev = input_allocate_device();
 859         if (!wacom || !input_dev)
 860                 goto fail1;
 861
 862         wacom->data = usb_buffer_alloc(dev, 10, GFP_KERNEL, &wacom->data_dma);
 863         if (!wacom->data)
 864                 goto fail1;
 865
 866         wacom->irq = usb_alloc_urb(0, GFP_KERNEL);
 867         if (!wacom->irq)
 868                 goto fail2;
 869
 870         wacom->usbdev = dev;
 871         wacom->dev = input_dev;
 872         usb_make_path(dev, wacom->phys, sizeof(wacom->phys));
 873         strlcat(wacom->phys, "/input0", sizeof(wacom->phys));
 874
 875         wacom->features = wacom_features + (id - wacom_ids);
 876         if (wacom->features->pktlen > 10)
 877                 BUG();
 878
 879         input_dev->name = wacom->features->name;
 880         usb_to_input_id(dev, &input_dev->id);
 881
 882         input_dev->cdev.dev = &intf->dev;
 883         input_dev->private = wacom;
 884         input_dev->open = wacom_open;
 885         input_dev->close = wacom_close;
 886
 887         input_dev->evbit[0] |= BIT(EV_KEY) | BIT(EV_ABS);
 888         input_dev->keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_PEN) | BIT(BTN_TOUCH) | BIT(BTN_STYLUS);
 889         input_set_abs_params(input_dev, ABS_X, 0, wacom->features->x_max, 4, 0);
 890         input_set_abs_params(input_dev, ABS_Y, 0, wacom->features->y_max, 4, 0);
 891         input_set_abs_params(input_dev, ABS_PRESSURE, 0, wacom->features->pressure_max, 0, 0);
 892         input_dev->absbit[LONG(ABS_MISC)] |= BIT(ABS_MISC);
 893
 894         switch (wacom->features->type) {
 895                 case WACOM_G4:
 896                         input_dev->evbit[0] |= BIT(EV_MSC);
 897                         input_dev->mscbit[0] |= BIT(MSC_SERIAL);
 898                         input_dev->keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_FINGER);
 899                         input_dev->keybit[LONG(BTN_LEFT)] |= BIT(BTN_0) | BIT(BTN_1) | BIT(BTN_2) | BIT(BTN_3) | BIT(BTN_4) | BIT(BTN_5) | BIT(BTN_6) | BIT(BTN_7);
 900                         /* fall through */
 901
 902                 case GRAPHIRE:
 903                         input_dev->evbit[0] |= BIT(EV_REL);
 904                         input_dev->relbit[0] |= BIT(REL_WHEEL);
 905                         input_dev->keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE);
 906                         input_dev->keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_RUBBER) | BIT(BTN_TOOL_MOUSE) | BIT(BTN_STYLUS2);
 907                         input_set_abs_params(input_dev, ABS_DISTANCE, 0, wacom->features->distance_max, 0, 0);
 908                         break;
 909
 910                 case INTUOS3:
 911                 case INTUOS312:
 912                 case INTUOS319:
 913                 case CINTIQ:
 914                         input_dev->keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_FINGER);
 915                         input_dev->keybit[LONG(BTN_LEFT)] |= BIT(BTN_0) | BIT(BTN_1) | BIT(BTN_2) | BIT(BTN_3) | BIT(BTN_4) | BIT(BTN_5) | BIT(BTN_6) | BIT(BTN_7);
 916                         input_set_abs_params(input_dev, ABS_RX, 0, 4097, 0, 0);
 917                         input_set_abs_params(input_dev, ABS_RY, 0, 4097, 0, 0);
 918                         /* fall through */
 919
 920                 case INTUOS:
 921                         input_dev->evbit[0] |= BIT(EV_MSC) | BIT(EV_REL);
 922                         input_dev->mscbit[0] |= BIT(MSC_SERIAL);
 923                         input_dev->relbit[0] |= BIT(REL_WHEEL);
 924                         input_dev->keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE) | BIT(BTN_SIDE) | BIT(BTN_EXTRA);
 925                         input_dev->keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_RUBBER) | BIT(BTN_TOOL_MOUSE) | BIT(BTN_TOOL_BRUSH)
 926                                                           | BIT(BTN_TOOL_PENCIL) | BIT(BTN_TOOL_AIRBRUSH) | BIT(BTN_TOOL_LENS) | BIT(BTN_STYLUS2);
 927                         input_set_abs_params(input_dev, ABS_DISTANCE, 0, wacom->features->distance_max, 0, 0);
 928                         input_set_abs_params(input_dev, ABS_WHEEL, 0, 1023, 0, 0);
 929                         input_set_abs_params(input_dev, ABS_TILT_X, 0, 127, 0, 0);
 930                         input_set_abs_params(input_dev, ABS_TILT_Y, 0, 127, 0, 0);
 931                         input_set_abs_params(input_dev, ABS_RZ, -900, 899, 0, 0);
 932                         input_set_abs_params(input_dev, ABS_THROTTLE, -1023, 1023, 0, 0);
 933                         break;
 934
 935                 case PL:
 936                         input_dev->keybit[LONG(BTN_DIGI)] |= BIT(BTN_STYLUS2) | BIT(BTN_TOOL_RUBBER);
 937                         break;
 938         }
 939
 940         endpoint = &intf->cur_altsetting->endpoint[0].desc;
 941
 942         if (wacom->features->pktlen > 10)
 943                 BUG();
 944
 945         usb_fill_int_urb(wacom->irq, dev,
 946                          usb_rcvintpipe(dev, endpoint->bEndpointAddress),
 947                          wacom->data, wacom->features->pktlen,
 948                          wacom->features->irq, wacom, endpoint->bInterval);
 949         wacom->irq->transfer_dma = wacom->data_dma;
 950         wacom->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
 951
 952         input_register_device(wacom->dev);
 953
 954         /* Ask the tablet to report tablet data. Repeat until it succeeds */
 955         do {
 956                 rep_data[0] = 2;
 957                 rep_data[1] = 2;
 958                 usb_set_report(intf, 3, 2, rep_data, 2);
 959                 usb_get_report(intf, 3, 2, rep_data, 2);
 960         } while (rep_data[1] != 2 && limit++ < 5);
 961
 962         usb_set_intfdata(intf, wacom);
 963         return 0;
 964
 965 fail2:  usb_buffer_free(dev, 10, wacom->data, wacom->data_dma);
 966 fail1:  input_free_device(input_dev);
 967         kfree(wacom);
 968         return -ENOMEM;
 969 }
 970
 971 static void wacom_disconnect(struct usb_interface *intf)
 972 {
 973         struct wacom *wacom = usb_get_intfdata (intf);
 974
 975         usb_set_intfdata(intf, NULL);
 976         if (wacom) {
 977                 usb_kill_urb(wacom->irq);
 978                 input_unregister_device(wacom->dev);
 979                 usb_free_urb(wacom->irq);
 980                 usb_buffer_free(interface_to_usbdev(intf), 10, wacom->data, wacom->data_dma);
 981                 kfree(wacom);
 982         }
 983 }
 984
 985 static struct usb_driver wacom_driver = {
 986         .name =         "wacom",
 987         .probe =        wacom_probe,
 988         .disconnect =   wacom_disconnect,
 989         .id_table =     wacom_ids,
 990 };
 991
 992 static int __init wacom_init(void)
 993 {
 994         int result = usb_register(&wacom_driver);
 995         if (result == 0)
 996                 info(DRIVER_VERSION ":" DRIVER_DESC);
 997         return result;
 998 }
 999
1000 static void __exit wacom_exit(void)
1001 {
1002         usb_deregister(&wacom_driver);
1003 }
1004
1005 module_init(wacom_init);
1006 module_exit(wacom_exit);