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   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) 2002-2005 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  */
  58
  59 /*
  60  * This program is free software; you can redistribute it and/or modify
  61  * it under the terms of the GNU General Public License as published by
  62  * the Free Software Foundation; either version 2 of the License, or
  63  * (at your option) any later version.
  64  */
  65
  66 #include <linux/kernel.h>
  67 #include <linux/slab.h>
  68 #include <linux/input.h>
  69 #include <linux/module.h>
  70 #include <linux/init.h>
  71 #include <linux/usb.h>
  72 #include <linux/usb_input.h>
  73 #include <asm/unaligned.h>
  74 #include <asm/byteorder.h>
  75
  76 /*
  77  * Version Information
  78  */
  79 #define DRIVER_VERSION "v1.43"
  80 #define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@ucw.cz>"
  81 #define DRIVER_DESC "USB Wacom Graphire and Wacom Intuos tablet driver"
  82 #define DRIVER_LICENSE "GPL"
  83
  84 MODULE_AUTHOR(DRIVER_AUTHOR);
  85 MODULE_DESCRIPTION(DRIVER_DESC);
  86 MODULE_LICENSE(DRIVER_LICENSE);
  87
  88 #define USB_VENDOR_ID_WACOM     0x056a
  89
  90 enum {
  91         PENPARTNER = 0,
  92         GRAPHIRE,
  93         PL,
  94         INTUOS,
  95         INTUOS3,
  96         CINTIQ,
  97         MAX_TYPE
  98 };
  99
 100 struct wacom_features {
 101         char *name;
 102         int pktlen;
 103         int x_max;
 104         int y_max;
 105         int pressure_max;
 106         int distance_max;
 107         int type;
 108         usb_complete_t irq;
 109 };
 110
 111 struct wacom {
 112         signed char *data;
 113         dma_addr_t data_dma;
 114         struct input_dev *dev;
 115         struct usb_device *usbdev;
 116         struct urb *irq;
 117         struct wacom_features *features;
 118         int tool[2];
 119         __u32 serial[2];
 120         char phys[32];
 121 };
 122
 123 #define USB_REQ_SET_REPORT      0x09
 124 static int usb_set_report(struct usb_interface *intf, unsigned char type,
 125                                 unsigned char id, void *buf, int size)
 126 {
 127         return usb_control_msg(interface_to_usbdev(intf),
 128                 usb_sndctrlpipe(interface_to_usbdev(intf), 0),
 129                 USB_REQ_SET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE,
 130                 (type << 8) + id, intf->altsetting[0].desc.bInterfaceNumber,
 131                 buf, size, 1000);
 132 }
 133
 134 static void wacom_pl_irq(struct urb *urb, struct pt_regs *regs)
 135 {
 136         struct wacom *wacom = urb->context;
 137         unsigned char *data = wacom->data;
 138         struct input_dev *dev = wacom->dev;
 139         int prox, pressure;
 140         int retval;
 141
 142         switch (urb->status) {
 143         case 0:
 144                 /* success */
 145                 break;
 146         case -ECONNRESET:
 147         case -ENOENT:
 148         case -ESHUTDOWN:
 149                 /* this urb is terminated, clean up */
 150                 dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
 151                 return;
 152         default:
 153                 dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
 154                 goto exit;
 155         }
 156
 157         if (data[0] != 2) {
 158                 dbg("wacom_pl_irq: received unknown report #%d", data[0]);
 159                 goto exit;
 160         }
 161
 162         prox = data[1] & 0x40;
 163
 164         input_regs(dev, regs);
 165
 166         if (prox) {
 167
 168                 pressure = (signed char)((data[7] << 1) | ((data[4] >> 2) & 1));
 169                 if (wacom->features->pressure_max > 255)
 170                         pressure = (pressure << 1) | ((data[4] >> 6) & 1);
 171                 pressure += (wacom->features->pressure_max + 1) / 2;
 172
 173                 /*
 174                  * if going from out of proximity into proximity select between the eraser
 175                  * and the pen based on the state of the stylus2 button, choose eraser if
 176                  * pressed else choose pen. if not a proximity change from out to in, send
 177                  * an out of proximity for previous tool then a in for new tool.
 178                  */
 179                 if (!wacom->tool[0]) {
 180                         /* Going into proximity select tool */
 181                         wacom->tool[1] = (data[4] & 0x20)? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
 182                 } else {
 183                         /* was entered with stylus2 pressed */
 184                         if (wacom->tool[1] == BTN_TOOL_RUBBER && !(data[4] & 0x20) ) {
 185                                 /* report out proximity for previous tool */
 186                                 input_report_key(dev, wacom->tool[1], 0);
 187                                 input_sync(dev);
 188                                 wacom->tool[1] = BTN_TOOL_PEN;
 189                                 goto exit;
 190                         }
 191                 }
 192                 if (wacom->tool[1] != BTN_TOOL_RUBBER) {
 193                         /* Unknown tool selected default to pen tool */
 194                         wacom->tool[1] = BTN_TOOL_PEN;
 195                 }
 196                 input_report_key(dev, wacom->tool[1], prox); /* report in proximity for tool */
 197                 input_report_abs(dev, ABS_X, data[3] | (data[2] << 7) | ((data[1] & 0x03) << 14));
 198                 input_report_abs(dev, ABS_Y, data[6] | (data[5] << 7) | ((data[4] & 0x03) << 14));
 199                 input_report_abs(dev, ABS_PRESSURE, pressure);
 200
 201                 input_report_key(dev, BTN_TOUCH, data[4] & 0x08);
 202                 input_report_key(dev, BTN_STYLUS, data[4] & 0x10);
 203                 /* Only allow the stylus2 button to be reported for the pen tool. */
 204                 input_report_key(dev, BTN_STYLUS2, (wacom->tool[1] == BTN_TOOL_PEN) && (data[4] & 0x20));
 205         } else {
 206                 /* report proximity-out of a (valid) tool */
 207                 if (wacom->tool[1] != BTN_TOOL_RUBBER) {
 208                         /* Unknown tool selected default to pen tool */
 209                         wacom->tool[1] = BTN_TOOL_PEN;
 210                 }
 211                 input_report_key(dev, wacom->tool[1], prox);
 212         }
 213
 214         wacom->tool[0] = prox; /* Save proximity state */
 215         input_sync(dev);
 216
 217  exit:
 218         retval = usb_submit_urb (urb, GFP_ATOMIC);
 219         if (retval)
 220                 err ("%s - usb_submit_urb failed with result %d",
 221                      __FUNCTION__, retval);
 222 }
 223
 224 static void wacom_ptu_irq(struct urb *urb, struct pt_regs *regs)
 225 {
 226         struct wacom *wacom = urb->context;
 227         unsigned char *data = wacom->data;
 228         struct input_dev *dev = wacom->dev;
 229         int retval;
 230
 231         switch (urb->status) {
 232         case 0:
 233                 /* success */
 234                 break;
 235         case -ECONNRESET:
 236         case -ENOENT:
 237         case -ESHUTDOWN:
 238                 /* this urb is terminated, clean up */
 239                 dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
 240                 return;
 241         default:
 242                 dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
 243                 goto exit;
 244         }
 245
 246         if (data[0] != 2) {
 247                 printk(KERN_INFO "wacom_ptu_irq: received unknown report #%d\n", data[0]);
 248                 goto exit;
 249         }
 250
 251         input_regs(dev, regs);
 252         if (data[1] & 0x04) {
 253                 input_report_key(dev, BTN_TOOL_RUBBER, data[1] & 0x20);
 254                 input_report_key(dev, BTN_TOUCH, data[1] & 0x08);
 255         } else {
 256                 input_report_key(dev, BTN_TOOL_PEN, data[1] & 0x20);
 257                 input_report_key(dev, BTN_TOUCH, data[1] & 0x01);
 258         }
 259         input_report_abs(dev, ABS_X, le16_to_cpu(*(__le16 *) &data[2]));
 260         input_report_abs(dev, ABS_Y, le16_to_cpu(*(__le16 *) &data[4]));
 261         input_report_abs(dev, ABS_PRESSURE, le16_to_cpu(*(__le16 *) &data[6]));
 262         input_report_key(dev, BTN_STYLUS, data[1] & 0x02);
 263         input_report_key(dev, BTN_STYLUS2, data[1] & 0x10);
 264
 265         input_sync(dev);
 266
 267  exit:
 268         retval = usb_submit_urb (urb, GFP_ATOMIC);
 269         if (retval)
 270                 err ("%s - usb_submit_urb failed with result %d",
 271                      __FUNCTION__, retval);
 272 }
 273
 274 static void wacom_penpartner_irq(struct urb *urb, struct pt_regs *regs)
 275 {
 276         struct wacom *wacom = urb->context;
 277         unsigned char *data = wacom->data;
 278         struct input_dev *dev = wacom->dev;
 279         int retval;
 280
 281         switch (urb->status) {
 282         case 0:
 283                 /* success */
 284                 break;
 285         case -ECONNRESET:
 286         case -ENOENT:
 287         case -ESHUTDOWN:
 288                 /* this urb is terminated, clean up */
 289                 dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
 290                 return;
 291         default:
 292                 dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
 293                 goto exit;
 294         }
 295
 296         if (data[0] != 2) {
 297                 printk(KERN_INFO "wacom_penpartner_irq: received unknown report #%d\n", data[0]);
 298                 goto exit;
 299         }
 300
 301         input_regs(dev, regs);
 302         input_report_key(dev, BTN_TOOL_PEN, 1);
 303         input_report_abs(dev, ABS_X, le16_to_cpu(*(__le16 *) &data[1]));
 304         input_report_abs(dev, ABS_Y, le16_to_cpu(*(__le16 *) &data[3]));
 305         input_report_abs(dev, ABS_PRESSURE, (signed char)data[6] + 127);
 306         input_report_key(dev, BTN_TOUCH, ((signed char)data[6] > -80) && !(data[5] & 0x20));
 307         input_report_key(dev, BTN_STYLUS, (data[5] & 0x40));
 308         input_sync(dev);
 309
 310  exit:
 311         retval = usb_submit_urb (urb, GFP_ATOMIC);
 312         if (retval)
 313                 err ("%s - usb_submit_urb failed with result %d",
 314                      __FUNCTION__, retval);
 315 }
 316
 317 static void wacom_graphire_irq(struct urb *urb, struct pt_regs *regs)
 318 {
 319         struct wacom *wacom = urb->context;
 320         unsigned char *data = wacom->data;
 321         struct input_dev *dev = wacom->dev;
 322         int x, y;
 323         int retval;
 324
 325         switch (urb->status) {
 326         case 0:
 327                 /* success */
 328                 break;
 329         case -ECONNRESET:
 330         case -ENOENT:
 331         case -ESHUTDOWN:
 332                 /* this urb is terminated, clean up */
 333                 dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
 334                 return;
 335         default:
 336                 dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
 337                 goto exit;
 338         }
 339
 340         if (data[0] != 2) {
 341                 dbg("wacom_graphire_irq: received unknown report #%d", data[0]);
 342                 goto exit;
 343         }
 344
 345         input_regs(dev, regs);
 346
 347         if (data[1] & 0x10) { /* in prox */
 348
 349                 switch ((data[1] >> 5) & 3) {
 350
 351                         case 0: /* Pen */
 352                                 wacom->tool[0] = BTN_TOOL_PEN;
 353                                 break;
 354
 355                         case 1: /* Rubber */
 356                                 wacom->tool[0] = BTN_TOOL_RUBBER;
 357                                 break;
 358
 359                         case 2: /* Mouse with wheel */
 360                                 input_report_key(dev, BTN_MIDDLE, data[1] & 0x04);
 361                                 input_report_rel(dev, REL_WHEEL, (signed char) data[6]);
 362                                 /* fall through */
 363
 364                         case 3: /* Mouse without wheel */
 365                                 wacom->tool[0] = BTN_TOOL_MOUSE;
 366                                 input_report_key(dev, BTN_LEFT, data[1] & 0x01);
 367                                 input_report_key(dev, BTN_RIGHT, data[1] & 0x02);
 368                                 input_report_abs(dev, ABS_DISTANCE, data[7]);
 369                                 break;
 370                 }
 371         }
 372
 373         if (data[1] & 0x90) {
 374                 x = le16_to_cpu(*(__le16 *) &data[2]);
 375                 y = le16_to_cpu(*(__le16 *) &data[4]);
 376                 input_report_abs(dev, ABS_X, x);
 377                 input_report_abs(dev, ABS_Y, y);
 378                 if (wacom->tool[0] != BTN_TOOL_MOUSE) {
 379                         input_report_abs(dev, ABS_PRESSURE, le16_to_cpu(*(__le16 *) &data[6]));
 380                         input_report_key(dev, BTN_TOUCH, data[1] & 0x01);
 381                         input_report_key(dev, BTN_STYLUS, data[1] & 0x02);
 382                         input_report_key(dev, BTN_STYLUS2, data[1] & 0x04);
 383                 }
 384         }
 385
 386         input_report_key(dev, wacom->tool[0], data[1] & 0x10);
 387         input_sync(dev);
 388
 389  exit:
 390         retval = usb_submit_urb (urb, GFP_ATOMIC);
 391         if (retval)
 392                 err ("%s - usb_submit_urb failed with result %d",
 393                      __FUNCTION__, retval);
 394 }
 395
 396 static int wacom_intuos_inout(struct urb *urb)
 397 {
 398         struct wacom *wacom = urb->context;
 399         unsigned char *data = wacom->data;
 400         struct input_dev *dev = wacom->dev;
 401         int idx;
 402
 403         /* tool number */
 404         idx = data[1] & 0x01;
 405
 406         /* Enter report */
 407         if ((data[1] & 0xfc) == 0xc0) {
 408                 /* serial number of the tool */
 409                 wacom->serial[idx] = ((data[3] & 0x0f) << 28) +
 410                         (data[4] << 20) + (data[5] << 12) +
 411                         (data[6] << 4) + (data[7] >> 4);
 412
 413                 switch ((data[2] << 4) | (data[3] >> 4)) {
 414                         case 0x812: /* Inking pen */
 415                         case 0x801: /* Intuos3 Inking pen */
 416                         case 0x012:
 417                                 wacom->tool[idx] = BTN_TOOL_PENCIL;
 418                                 break;
 419                         case 0x822: /* Pen */
 420                         case 0x842:
 421                         case 0x852:
 422                         case 0x823: /* Intuos3 Grip Pen */
 423                         case 0x813: /* Intuos3 Classic Pen */
 424                         case 0x885: /* Intuos3 Marker Pen */
 425                         case 0x022:
 426                                 wacom->tool[idx] = BTN_TOOL_PEN;
 427                                 break;
 428                         case 0x832: /* Stroke pen */
 429                         case 0x032:
 430                                 wacom->tool[idx] = BTN_TOOL_BRUSH;
 431                                 break;
 432                         case 0x007: /* Mouse 4D and 2D */
 433                         case 0x09c:
 434                         case 0x094:
 435                         case 0x017: /* Intuos3 2D Mouse */
 436                                 wacom->tool[idx] = BTN_TOOL_MOUSE;
 437                                 break;
 438                         case 0x096: /* Lens cursor */
 439                         case 0x097: /* Intuos3 Lens cursor */
 440                                 wacom->tool[idx] = BTN_TOOL_LENS;
 441                                 break;
 442                         case 0x82a: /* Eraser */
 443                         case 0x85a:
 444                         case 0x91a:
 445                         case 0xd1a:
 446                         case 0x0fa:
 447                         case 0x82b: /* Intuos3 Grip Pen Eraser */
 448                         case 0x81b: /* Intuos3 Classic Pen Eraser */
 449                         case 0x91b: /* Intuos3 Airbrush Eraser */
 450                                 wacom->tool[idx] = BTN_TOOL_RUBBER;
 451                                 break;
 452                         case 0xd12:
 453                         case 0x912:
 454                         case 0x112:
 455                         case 0x913: /* Intuos3 Airbrush */
 456                                 wacom->tool[idx] = BTN_TOOL_AIRBRUSH;
 457                                 break;
 458                         default: /* Unknown tool */
 459                                 wacom->tool[idx] = BTN_TOOL_PEN;
 460                 }
 461                 input_report_key(dev, wacom->tool[idx], 1);
 462                 input_event(dev, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
 463                 input_sync(dev);
 464                 return 1;
 465         }
 466
 467         /* Exit report */
 468         if ((data[1] & 0xfe) == 0x80) {
 469                 input_report_key(dev, wacom->tool[idx], 0);
 470                 input_event(dev, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
 471                 input_sync(dev);
 472                 return 1;
 473         }
 474
 475         return 0;
 476 }
 477
 478 static void wacom_intuos_general(struct urb *urb)
 479 {
 480         struct wacom *wacom = urb->context;
 481         unsigned char *data = wacom->data;
 482         struct input_dev *dev = wacom->dev;
 483         unsigned int t;
 484
 485         /* general pen packet */
 486         if ((data[1] & 0xb8) == 0xa0) {
 487                 t = (data[6] << 2) | ((data[7] >> 6) & 3);
 488                 input_report_abs(dev, ABS_PRESSURE, t);
 489                 input_report_abs(dev, ABS_TILT_X,
 490                                 ((data[7] << 1) & 0x7e) | (data[8] >> 7));
 491                 input_report_abs(dev, ABS_TILT_Y, data[8] & 0x7f);
 492                 input_report_key(dev, BTN_STYLUS, data[1] & 2);
 493                 input_report_key(dev, BTN_STYLUS2, data[1] & 4);
 494                 input_report_key(dev, BTN_TOUCH, t > 10);
 495         }
 496
 497         /* airbrush second packet */
 498         if ((data[1] & 0xbc) == 0xb4) {
 499                 input_report_abs(dev, ABS_WHEEL,
 500                                 (data[6] << 2) | ((data[7] >> 6) & 3));
 501                 input_report_abs(dev, ABS_TILT_X,
 502                                 ((data[7] << 1) & 0x7e) | (data[8] >> 7));
 503                 input_report_abs(dev, ABS_TILT_Y, data[8] & 0x7f);
 504         }
 505         return;
 506 }
 507
 508 static void wacom_intuos_irq(struct urb *urb, struct pt_regs *regs)
 509 {
 510         struct wacom *wacom = urb->context;
 511         unsigned char *data = wacom->data;
 512         struct input_dev *dev = wacom->dev;
 513         unsigned int t;
 514         int idx;
 515         int retval;
 516
 517         switch (urb->status) {
 518         case 0:
 519                 /* success */
 520                 break;
 521         case -ECONNRESET:
 522         case -ENOENT:
 523         case -ESHUTDOWN:
 524                 /* this urb is terminated, clean up */
 525                 dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
 526                 return;
 527         default:
 528                 dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
 529                 goto exit;
 530         }
 531
 532         if (data[0] != 2 && data[0] != 5 && data[0] != 6 && data[0] != 12) {
 533                 dbg("wacom_intuos_irq: received unknown report #%d", data[0]);
 534                 goto exit;
 535         }
 536
 537         input_regs(dev, regs);
 538
 539         /* tool number */
 540         idx = data[1] & 0x01;
 541
 542         /* pad packets. Works as a second tool and is always in prox */
 543         if (data[0] == 12) {
 544                 /* initiate the pad as a device */
 545                 if (wacom->tool[1] != BTN_TOOL_FINGER) {
 546                         wacom->tool[1] = BTN_TOOL_FINGER;
 547                         input_report_key(dev, wacom->tool[1], 1);
 548                 }
 549                 input_report_key(dev, BTN_0, (data[5] & 0x01));
 550                 input_report_key(dev, BTN_1, (data[5] & 0x02));
 551                 input_report_key(dev, BTN_2, (data[5] & 0x04));
 552                 input_report_key(dev, BTN_3, (data[5] & 0x08));
 553                 input_report_key(dev, BTN_4, (data[6] & 0x01));
 554                 input_report_key(dev, BTN_5, (data[6] & 0x02));
 555                 input_report_key(dev, BTN_6, (data[6] & 0x04));
 556                 input_report_key(dev, BTN_7, (data[6] & 0x08));
 557                 input_report_abs(dev, ABS_RX, ((data[1] & 0x1f) << 8) | data[2]);
 558                 input_report_abs(dev, ABS_RY, ((data[3] & 0x1f) << 8) | data[4]);
 559                 input_event(dev, EV_MSC, MSC_SERIAL, 0xffffffff);
 560                 input_sync(dev);
 561                 goto exit;
 562         }
 563
 564         /* process in/out prox events */
 565         if (wacom_intuos_inout(urb))
 566                 goto exit;
 567
 568         /* Cintiq doesn't send data when RDY bit isn't set */
 569         if ((wacom->features->type == CINTIQ) && !(data[1] & 0x40))
 570                 goto exit;
 571
 572         if (wacom->features->type >= INTUOS3) {
 573                 input_report_abs(dev, ABS_X, (data[2] << 9) | (data[3] << 1) | ((data[9] >> 1) & 1));
 574                 input_report_abs(dev, ABS_Y, (data[4] << 9) | (data[5] << 1) | (data[9] & 1));
 575                 input_report_abs(dev, ABS_DISTANCE, ((data[9] >> 2) & 0x3f));
 576         } else {
 577                 input_report_abs(dev, ABS_X, be16_to_cpu(*(__be16 *) &data[2]));
 578                 input_report_abs(dev, ABS_Y, be16_to_cpu(*(__be16 *) &data[4]));
 579                 input_report_abs(dev, ABS_DISTANCE, ((data[9] >> 3) & 0x1f));
 580         }
 581
 582         /* process general packets */
 583         wacom_intuos_general(urb);
 584
 585         /* 4D mouse, 2D mouse, marker pen rotation, or Lens cursor packets */
 586         if ((data[1] & 0xbc) == 0xa8 || (data[1] & 0xbe) == 0xb0) {
 587
 588                 if (data[1] & 0x02) {
 589                         /* Rotation packet */
 590                         if (wacom->features->type >= INTUOS3) {
 591                                 /* I3 marker pen rotation reported as wheel
 592                                  * due to valuator limitation
 593                                  */
 594                                 t = (data[6] << 3) | ((data[7] >> 5) & 7);
 595                                 t = (data[7] & 0x20) ? ((t > 900) ? ((t-1) / 2 - 1350) :
 596                                         ((t-1) / 2 + 450)) : (450 - t / 2) ;
 597                                 input_report_abs(dev, ABS_WHEEL, t);
 598                         } else {
 599                                 /* 4D mouse rotation packet */
 600                                 t = (data[6] << 3) | ((data[7] >> 5) & 7);
 601                                 input_report_abs(dev, ABS_RZ, (data[7] & 0x20) ?
 602                                         ((t - 1) / 2) : -t / 2);
 603                         }
 604
 605                 } else if (!(data[1] & 0x10) && wacom->features->type < INTUOS3) {
 606                         /* 4D mouse packet */
 607                         input_report_key(dev, BTN_LEFT,   data[8] & 0x01);
 608                         input_report_key(dev, BTN_MIDDLE, data[8] & 0x02);
 609                         input_report_key(dev, BTN_RIGHT,  data[8] & 0x04);
 610
 611                         input_report_key(dev, BTN_SIDE,   data[8] & 0x20);
 612                         input_report_key(dev, BTN_EXTRA,  data[8] & 0x10);
 613                         t = (data[6] << 2) | ((data[7] >> 6) & 3);
 614                         input_report_abs(dev, ABS_THROTTLE, (data[8] & 0x08) ? -t : t);
 615
 616                 } else if (wacom->tool[idx] == BTN_TOOL_MOUSE) {
 617                         /* 2D mouse packet */
 618                         input_report_key(dev, BTN_LEFT,   data[8] & 0x04);
 619                         input_report_key(dev, BTN_MIDDLE, data[8] & 0x08);
 620                         input_report_key(dev, BTN_RIGHT,  data[8] & 0x10);
 621                         input_report_rel(dev, REL_WHEEL, ((data[8] & 0x02) >> 1)
 622                                                  - (data[8] & 0x01));
 623
 624                         /* I3 2D mouse side buttons */
 625                         if (wacom->features->type == INTUOS3) {
 626                                 input_report_key(dev, BTN_SIDE,   data[8] & 0x40);
 627                                 input_report_key(dev, BTN_EXTRA,  data[8] & 0x20);
 628                         }
 629
 630                 } else if (wacom->features->type < INTUOS3) {
 631                         /* Lens cursor packets */
 632                         input_report_key(dev, BTN_LEFT,   data[8] & 0x01);
 633                         input_report_key(dev, BTN_MIDDLE, data[8] & 0x02);
 634                         input_report_key(dev, BTN_RIGHT,  data[8] & 0x04);
 635                         input_report_key(dev, BTN_SIDE,   data[8] & 0x10);
 636                         input_report_key(dev, BTN_EXTRA,  data[8] & 0x08);
 637                 }
 638         }
 639
 640         input_report_key(dev, wacom->tool[idx], 1);
 641         input_event(dev, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
 642         input_sync(dev);
 643
 644 exit:
 645         retval = usb_submit_urb (urb, GFP_ATOMIC);
 646         if (retval)
 647                 err ("%s - usb_submit_urb failed with result %d",
 648                     __FUNCTION__, retval);
 649 }
 650
 651 static struct wacom_features wacom_features[] = {
 652         { "Wacom Penpartner",    7,   5040,  3780,  255, 32, PENPARTNER, wacom_penpartner_irq },
 653         { "Wacom Graphire",      8,  10206,  7422,  511, 32, GRAPHIRE,   wacom_graphire_irq },
 654         { "Wacom Graphire2 4x5", 8,  10206,  7422,  511, 32, GRAPHIRE,   wacom_graphire_irq },
 655         { "Wacom Graphire2 5x7", 8,  13918, 10206,  511, 32, GRAPHIRE,   wacom_graphire_irq },
 656         { "Wacom Graphire3",     8,  10208,  7424,  511, 32, GRAPHIRE,   wacom_graphire_irq },
 657         { "Wacom Graphire3 6x8", 8,  16704, 12064,  511, 32, GRAPHIRE,   wacom_graphire_irq },
 658         { "Wacom Intuos 4x5",   10,  12700, 10600, 1023, 15, INTUOS,     wacom_intuos_irq },
 659         { "Wacom Intuos 6x8",   10,  20320, 16240, 1023, 15, INTUOS,     wacom_intuos_irq },
 660         { "Wacom Intuos 9x12",  10,  30480, 24060, 1023, 15, INTUOS,     wacom_intuos_irq },
 661         { "Wacom Intuos 12x12", 10,  30480, 31680, 1023, 15, INTUOS,     wacom_intuos_irq },
 662         { "Wacom Intuos 12x18", 10,  45720, 31680, 1023, 15, INTUOS,     wacom_intuos_irq },
 663         { "Wacom PL400",         8,   5408,  4056,  255, 32, PL,         wacom_pl_irq },
 664         { "Wacom PL500",         8,   6144,  4608,  255, 32, PL,         wacom_pl_irq },
 665         { "Wacom PL600",         8,   6126,  4604,  255, 32, PL,         wacom_pl_irq },
 666         { "Wacom PL600SX",       8,   6260,  5016,  255, 32, PL,         wacom_pl_irq },
 667         { "Wacom PL550",         8,   6144,  4608,  511, 32, PL,         wacom_pl_irq },
 668         { "Wacom PL800",         8,   7220,  5780,  511, 32, PL,         wacom_pl_irq },
 669         { "Wacom Intuos2 4x5",   10, 12700, 10600, 1023, 15, INTUOS,     wacom_intuos_irq },
 670         { "Wacom Intuos2 6x8",   10, 20320, 16240, 1023, 15, INTUOS,     wacom_intuos_irq },
 671         { "Wacom Intuos2 9x12",  10, 30480, 24060, 1023, 15, INTUOS,     wacom_intuos_irq },
 672         { "Wacom Intuos2 12x12", 10, 30480, 31680, 1023, 15, INTUOS,     wacom_intuos_irq },
 673         { "Wacom Intuos2 12x18", 10, 45720, 31680, 1023, 15, INTUOS,     wacom_intuos_irq },
 674         { "Wacom Volito",        8,   5104,  3712,  511, 32, GRAPHIRE,   wacom_graphire_irq },
 675         { "Wacom Cintiq Partner",8,  20480, 15360,  511, 32, PL,         wacom_ptu_irq },
 676         { "Wacom Intuos3 4x5",   10, 25400, 20320, 1023, 15, INTUOS3,    wacom_intuos_irq },
 677         { "Wacom Intuos3 6x8",   10, 40640, 30480, 1023, 15, INTUOS3,    wacom_intuos_irq },
 678         { "Wacom Intuos3 9x12",  10, 60960, 45720, 1023, 15, INTUOS3,    wacom_intuos_irq },
 679         { "Wacom Cintiq 21UX",   10, 87200, 65600, 1023, 15, CINTIQ,     wacom_intuos_irq },
 680         { "Wacom Intuos2 6x8",   10, 20320, 16240, 1023, 15, INTUOS,     wacom_intuos_irq },
 681         { }
 682 };
 683
 684 static struct usb_device_id wacom_ids[] = {
 685         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x00) },
 686         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x10) },
 687         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x11) },
 688         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x12) },
 689         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x13) },
 690         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x14) },
 691         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x20) },
 692         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x21) },
 693         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x22) },
 694         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x23) },
 695         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x24) },
 696         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x30) },
 697         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x31) },
 698         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x32) },
 699         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x33) },
 700         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x34) },
 701         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x35) },
 702         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x41) },
 703         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x42) },
 704         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x43) },
 705         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x44) },
 706         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x45) },
 707         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x60) },
 708         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x03) },
 709         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB0) },
 710         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB1) },
 711         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB2) },
 712         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x3F) },
 713         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x47) },
 714         { }
 715 };
 716
 717 MODULE_DEVICE_TABLE(usb, wacom_ids);
 718
 719 static int wacom_open(struct input_dev *dev)
 720 {
 721         struct wacom *wacom = dev->private;
 722
 723         wacom->irq->dev = wacom->usbdev;
 724         if (usb_submit_urb(wacom->irq, GFP_KERNEL))
 725                 return -EIO;
 726
 727         return 0;
 728 }
 729
 730 static void wacom_close(struct input_dev *dev)
 731 {
 732         struct wacom *wacom = dev->private;
 733
 734         usb_kill_urb(wacom->irq);
 735 }
 736
 737 static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *id)
 738 {
 739         struct usb_device *dev = interface_to_usbdev(intf);
 740         struct usb_endpoint_descriptor *endpoint;
 741         struct wacom *wacom;
 742         struct input_dev *input_dev;
 743         char rep_data[2] = {0x02, 0x02};
 744
 745         wacom = kzalloc(sizeof(struct wacom), GFP_KERNEL);
 746         input_dev = input_allocate_device();
 747         if (!wacom || !input_dev)
 748                 goto fail1;
 749
 750         wacom->data = usb_buffer_alloc(dev, 10, GFP_KERNEL, &wacom->data_dma);
 751         if (!wacom->data)
 752                 goto fail1;
 753
 754         wacom->irq = usb_alloc_urb(0, GFP_KERNEL);
 755         if (!wacom->irq)
 756                 goto fail2;
 757
 758         wacom->usbdev = dev;
 759         wacom->dev = input_dev;
 760         usb_make_path(dev, wacom->phys, sizeof(wacom->phys));
 761         strlcat(wacom->phys, "/input0", sizeof(wacom->phys));
 762
 763         wacom->features = wacom_features + (id - wacom_ids);
 764         if (wacom->features->pktlen > 10)
 765                 BUG();
 766
 767         input_dev->name = wacom->features->name;
 768         usb_to_input_id(dev, &input_dev->id);
 769
 770         input_dev->cdev.dev = &intf->dev;
 771         input_dev->private = wacom;
 772         input_dev->open = wacom_open;
 773         input_dev->close = wacom_close;
 774
 775         input_dev->evbit[0] |= BIT(EV_KEY) | BIT(EV_ABS);
 776         input_dev->keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_PEN) | BIT(BTN_TOUCH) | BIT(BTN_STYLUS);
 777         input_set_abs_params(input_dev, ABS_X, 0, wacom->features->y_max, 4, 0);
 778         input_set_abs_params(input_dev, ABS_Y, 0, wacom->features->y_max, 4, 0);
 779         input_set_abs_params(input_dev, ABS_PRESSURE, 0, wacom->features->pressure_max, 0, 0);
 780
 781         switch (wacom->features->type) {
 782                 case GRAPHIRE:
 783                         input_dev->evbit[0] |= BIT(EV_REL);
 784                         input_dev->relbit[0] |= BIT(REL_WHEEL);
 785                         input_dev->keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE);
 786                         input_dev->keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_RUBBER) | BIT(BTN_TOOL_MOUSE) | BIT(BTN_STYLUS2);
 787                         input_set_abs_params(input_dev, ABS_DISTANCE, 0, wacom->features->distance_max, 0, 0);
 788                         break;
 789
 790                 case INTUOS3:
 791                 case CINTIQ:
 792                         input_dev->keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_FINGER);
 793                         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);
 794                         input_set_abs_params(input_dev, ABS_RX, 0, 4097, 0, 0);
 795                         input_set_abs_params(input_dev, ABS_RY, 0, 4097, 0, 0);
 796                         /* fall through */
 797
 798                 case INTUOS:
 799                         input_dev->evbit[0] |= BIT(EV_MSC) | BIT(EV_REL);
 800                         input_dev->mscbit[0] |= BIT(MSC_SERIAL);
 801                         input_dev->relbit[0] |= BIT(REL_WHEEL);
 802                         input_dev->keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE) | BIT(BTN_SIDE) | BIT(BTN_EXTRA);
 803                         input_dev->keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_RUBBER) | BIT(BTN_TOOL_MOUSE) | BIT(BTN_TOOL_BRUSH)
 804                                                           | BIT(BTN_TOOL_PENCIL) | BIT(BTN_TOOL_AIRBRUSH) | BIT(BTN_TOOL_LENS) | BIT(BTN_STYLUS2);
 805                         input_set_abs_params(input_dev, ABS_DISTANCE, 0, wacom->features->distance_max, 0, 0);
 806                         input_set_abs_params(input_dev, ABS_WHEEL, 0, 1023, 0, 0);
 807                         input_set_abs_params(input_dev, ABS_TILT_X, 0, 127, 0, 0);
 808                         input_set_abs_params(input_dev, ABS_TILT_Y, 0, 127, 0, 0);
 809                         input_set_abs_params(input_dev, ABS_RZ, -900, 899, 0, 0);
 810                         input_set_abs_params(input_dev, ABS_THROTTLE, -1023, 1023, 0, 0);
 811                         break;
 812
 813                 case PL:
 814                         input_dev->keybit[LONG(BTN_DIGI)] |= BIT(BTN_STYLUS2) | BIT(BTN_TOOL_RUBBER);
 815                         break;
 816         }
 817
 818         endpoint = &intf->cur_altsetting->endpoint[0].desc;
 819
 820         if (wacom->features->pktlen > 10)
 821                 BUG();
 822
 823         usb_fill_int_urb(wacom->irq, dev,
 824                          usb_rcvintpipe(dev, endpoint->bEndpointAddress),
 825                          wacom->data, wacom->features->pktlen,
 826                          wacom->features->irq, wacom, endpoint->bInterval);
 827         wacom->irq->transfer_dma = wacom->data_dma;
 828         wacom->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
 829
 830         input_register_device(wacom->dev);
 831
 832         /* ask the tablet to report tablet data */
 833         usb_set_report(intf, 3, 2, rep_data, 2);
 834         /* repeat once (not sure why the first call often fails) */
 835         usb_set_report(intf, 3, 2, rep_data, 2);
 836
 837         usb_set_intfdata(intf, wacom);
 838         return 0;
 839
 840 fail2:  usb_buffer_free(dev, 10, wacom->data, wacom->data_dma);
 841 fail1:  input_free_device(input_dev);
 842         kfree(wacom);
 843         return -ENOMEM;
 844 }
 845
 846 static void wacom_disconnect(struct usb_interface *intf)
 847 {
 848         struct wacom *wacom = usb_get_intfdata (intf);
 849
 850         usb_set_intfdata(intf, NULL);
 851         if (wacom) {
 852                 usb_kill_urb(wacom->irq);
 853                 input_unregister_device(wacom->dev);
 854                 usb_free_urb(wacom->irq);
 855                 usb_buffer_free(interface_to_usbdev(intf), 10, wacom->data, wacom->data_dma);
 856                 kfree(wacom);
 857         }
 858 }
 859
 860 static struct usb_driver wacom_driver = {
 861         .owner =        THIS_MODULE,
 862         .name =         "wacom",
 863         .probe =        wacom_probe,
 864         .disconnect =   wacom_disconnect,
 865         .id_table =     wacom_ids,
 866 };
 867
 868 static int __init wacom_init(void)
 869 {
 870         int result = usb_register(&wacom_driver);
 871         if (result == 0)
 872                 info(DRIVER_VERSION ":" DRIVER_DESC);
 873         return result;
 874 }
 875
 876 static void __exit wacom_exit(void)
 877 {
 878         usb_deregister(&wacom_driver);
 879 }
 880
 881 module_init(wacom_init);
 882 module_exit(wacom_exit);