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) 2002-2004 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  */
  55
  56 /*
  57  * This program is free software; you can redistribute it and/or modify
  58  * it under the terms of the GNU General Public License as published by
  59  * the Free Software Foundation; either version 2 of the License, or
  60  * (at your option) any later version.
  61  */
  62
  63 #include <linux/kernel.h>
  64 #include <linux/slab.h>
  65 #include <linux/input.h>
  66 #include <linux/module.h>
  67 #include <linux/init.h>
  68 #include <linux/usb.h>
  69 #include <asm/unaligned.h>
  70 #include <asm/byteorder.h>
  71
  72 /*
  73  * Version Information
  74  */
  75 #define DRIVER_VERSION "v1.40"
  76 #define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@ucw.cz>"
  77 #define DRIVER_DESC "USB Wacom Graphire and Wacom Intuos tablet driver"
  78 #define DRIVER_LICENSE "GPL"
  79
  80 MODULE_AUTHOR(DRIVER_AUTHOR);
  81 MODULE_DESCRIPTION(DRIVER_DESC);
  82 MODULE_LICENSE(DRIVER_LICENSE);
  83
  84 #define USB_VENDOR_ID_WACOM     0x056a
  85
  86 struct wacom_features {
  87         char *name;
  88         int pktlen;
  89         int x_max;
  90         int y_max;
  91         int pressure_max;
  92         int distance_max;
  93         int type;
  94         usb_complete_t irq;
  95 };
  96
  97 struct wacom {
  98         signed char *data;
  99         dma_addr_t data_dma;
 100         struct input_dev dev;
 101         struct usb_device *usbdev;
 102         struct urb *irq;
 103         struct wacom_features *features;
 104         int tool[2];
 105         int open;
 106         __u32 serial[2];
 107         char phys[32];
 108 };
 109
 110 #define USB_REQ_SET_REPORT      0x09
 111 static int usb_set_report(struct usb_interface *intf, unsigned char type,
 112                                 unsigned char id, void *buf, int size)
 113 {
 114         return usb_control_msg(interface_to_usbdev(intf),
 115                 usb_sndctrlpipe(interface_to_usbdev(intf), 0),
 116                 USB_REQ_SET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE,
 117                 (type << 8) + id, intf->altsetting[0].desc.bInterfaceNumber,
 118                 buf, size, 1000);
 119 }
 120
 121 static void wacom_pl_irq(struct urb *urb, struct pt_regs *regs)
 122 {
 123         struct wacom *wacom = urb->context;
 124         unsigned char *data = wacom->data;
 125         struct input_dev *dev = &wacom->dev;
 126         int prox, pressure;
 127         int retval;
 128
 129         switch (urb->status) {
 130         case 0:
 131                 /* success */
 132                 break;
 133         case -ECONNRESET:
 134         case -ENOENT:
 135         case -ESHUTDOWN:
 136                 /* this urb is terminated, clean up */
 137                 dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
 138                 return;
 139         default:
 140                 dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
 141                 goto exit;
 142         }
 143
 144         if (data[0] != 2) {
 145                 dbg("wacom_pl_irq: received unknown report #%d", data[0]);
 146                 goto exit;
 147         }
 148
 149         prox = data[1] & 0x40;
 150
 151         input_regs(dev, regs);
 152
 153         if (prox) {
 154
 155                 pressure = (signed char)((data[7] << 1) | ((data[4] >> 2) & 1));
 156                 if (wacom->features->pressure_max > 255)
 157                         pressure = (pressure << 1) | ((data[4] >> 6) & 1);
 158                 pressure += (wacom->features->pressure_max + 1) / 2;
 159
 160                 /*
 161                  * if going from out of proximity into proximity select between the eraser
 162                  * and the pen based on the state of the stylus2 button, choose eraser if
 163                  * pressed else choose pen. if not a proximity change from out to in, send
 164                  * an out of proximity for previous tool then a in for new tool.
 165                  */
 166                 if (!wacom->tool[0]) {
 167                         /* Going into proximity select tool */
 168                         wacom->tool[1] = (data[4] & 0x20)? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
 169                 }
 170                 else {
 171                         /* was entered with stylus2 pressed */
 172                         if (wacom->tool[1] == BTN_TOOL_RUBBER && !(data[4] & 0x20) ) {
 173                                 /* report out proximity for previous tool */
 174                                 input_report_key(dev, wacom->tool[1], 0);
 175                                 input_sync(dev);
 176                                 wacom->tool[1] = BTN_TOOL_PEN;
 177                                 goto exit;
 178                         }
 179                 }
 180                 if (wacom->tool[1] != BTN_TOOL_RUBBER) {
 181                         /* Unknown tool selected default to pen tool */
 182                         wacom->tool[1] = BTN_TOOL_PEN;
 183                 }
 184                 input_report_key(dev, wacom->tool[1], prox); /* report in proximity for tool */
 185                 input_report_abs(dev, ABS_X, data[3] | ((__u32)data[2] << 7) | ((__u32)(data[1] & 0x03) << 14));
 186                 input_report_abs(dev, ABS_Y, data[6] | ((__u32)data[5] << 7) | ((__u32)(data[4] & 0x03) << 14));
 187                 input_report_abs(dev, ABS_PRESSURE, pressure);
 188
 189                 input_report_key(dev, BTN_TOUCH, data[4] & 0x08);
 190                 input_report_key(dev, BTN_STYLUS, data[4] & 0x10);
 191                 /* Only allow the stylus2 button to be reported for the pen tool. */
 192                 input_report_key(dev, BTN_STYLUS2, (wacom->tool[1] == BTN_TOOL_PEN) && (data[4] & 0x20));
 193         }
 194         else {
 195                 /* report proximity-out of a (valid) tool */
 196                 if (wacom->tool[1] != BTN_TOOL_RUBBER) {
 197                         /* Unknown tool selected default to pen tool */
 198                         wacom->tool[1] = BTN_TOOL_PEN;
 199                 }
 200                 input_report_key(dev, wacom->tool[1], prox);
 201         }
 202
 203         wacom->tool[0] = prox; /* Save proximity state */
 204         input_sync(dev);
 205
 206 exit:
 207         retval = usb_submit_urb (urb, GFP_ATOMIC);
 208         if (retval)
 209                 err ("%s - usb_submit_urb failed with result %d",
 210                      __FUNCTION__, retval);
 211 }
 212
 213 static void wacom_ptu_irq(struct urb *urb, struct pt_regs *regs)
 214 {
 215         struct wacom *wacom = urb->context;
 216         unsigned char *data = wacom->data;
 217         struct input_dev *dev = &wacom->dev;
 218         int retval;
 219
 220         switch (urb->status) {
 221         case 0:
 222                 /* success */
 223                 break;
 224         case -ECONNRESET:
 225         case -ENOENT:
 226         case -ESHUTDOWN:
 227                 /* this urb is terminated, clean up */
 228                 dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
 229                 return;
 230         default:
 231                 dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
 232                 goto exit;
 233         }
 234
 235         if (data[0] != 2)
 236         {
 237                 printk(KERN_INFO "wacom_ptu_irq: received unknown report #%d\n", data[0]);
 238                 goto exit;
 239         }
 240
 241         input_regs(dev, regs);
 242         if (data[1] & 0x04)
 243         {
 244                 input_report_key(dev, BTN_TOOL_RUBBER, data[1] & 0x20);
 245                 input_report_key(dev, BTN_TOUCH, data[1] & 0x08);
 246         }
 247         else
 248         {
 249                 input_report_key(dev, BTN_TOOL_PEN, data[1] & 0x20);
 250                 input_report_key(dev, BTN_TOUCH, data[1] & 0x01);
 251         }
 252         input_report_abs(dev, ABS_X, le16_to_cpu(*(__le16 *) &data[2]));
 253         input_report_abs(dev, ABS_Y, le16_to_cpu(*(__le16 *) &data[4]));
 254         input_report_abs(dev, ABS_PRESSURE, le16_to_cpu(*(__le16 *) &data[6]));
 255         input_report_key(dev, BTN_STYLUS, data[1] & 0x02);
 256         input_report_key(dev, BTN_STYLUS2, data[1] & 0x10);
 257
 258         input_sync(dev);
 259
 260 exit:
 261         retval = usb_submit_urb (urb, GFP_ATOMIC);
 262         if (retval)
 263                 err ("%s - usb_submit_urb failed with result %d",
 264                      __FUNCTION__, retval);
 265 }
 266
 267 static void wacom_penpartner_irq(struct urb *urb, struct pt_regs *regs)
 268 {
 269         struct wacom *wacom = urb->context;
 270         unsigned char *data = wacom->data;
 271         struct input_dev *dev = &wacom->dev;
 272         int retval;
 273
 274         switch (urb->status) {
 275         case 0:
 276                 /* success */
 277                 break;
 278         case -ECONNRESET:
 279         case -ENOENT:
 280         case -ESHUTDOWN:
 281                 /* this urb is terminated, clean up */
 282                 dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
 283                 return;
 284         default:
 285                 dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
 286                 goto exit;
 287         }
 288
 289         if (data[0] != 2) {
 290                 printk(KERN_INFO "wacom_penpartner_irq: received unknown report #%d\n", data[0]);
 291                 goto exit;
 292         }
 293
 294         input_regs(dev, regs);
 295         input_report_key(dev, BTN_TOOL_PEN, 1);
 296         input_report_abs(dev, ABS_X, le16_to_cpu(*(__le16 *) &data[1]));
 297         input_report_abs(dev, ABS_Y, le16_to_cpu(*(__le16 *) &data[3]));
 298         input_report_abs(dev, ABS_PRESSURE, (signed char)data[6] + 127);
 299         input_report_key(dev, BTN_TOUCH, ((signed char)data[6] > -80) && !(data[5] & 0x20));
 300         input_report_key(dev, BTN_STYLUS, (data[5] & 0x40));
 301         input_sync(dev);
 302
 303 exit:
 304         retval = usb_submit_urb (urb, GFP_ATOMIC);
 305         if (retval)
 306                 err ("%s - usb_submit_urb failed with result %d",
 307                      __FUNCTION__, retval);
 308 }
 309
 310 static void wacom_graphire_irq(struct urb *urb, struct pt_regs *regs)
 311 {
 312         struct wacom *wacom = urb->context;
 313         unsigned char *data = wacom->data;
 314         struct input_dev *dev = &wacom->dev;
 315         int x, y;
 316         int retval;
 317
 318         switch (urb->status) {
 319         case 0:
 320                 /* success */
 321                 break;
 322         case -ECONNRESET:
 323         case -ENOENT:
 324         case -ESHUTDOWN:
 325                 /* this urb is terminated, clean up */
 326                 dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
 327                 return;
 328         default:
 329                 dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
 330                 goto exit;
 331         }
 332
 333         if (data[0] != 2) {
 334                 dbg("wacom_graphire_irq: received unknown report #%d", data[0]);
 335                 goto exit;
 336         }
 337
 338         x = le16_to_cpu(*(__le16 *) &data[2]);
 339         y = le16_to_cpu(*(__le16 *) &data[4]);
 340
 341         input_regs(dev, regs);
 342
 343         switch ((data[1] >> 5) & 3) {
 344
 345                 case 0: /* Pen */
 346                         input_report_key(dev, BTN_TOOL_PEN, data[1] & 0x80);
 347                         break;
 348
 349                 case 1: /* Rubber */
 350                         input_report_key(dev, BTN_TOOL_RUBBER, data[1] & 0x80);
 351                         break;
 352
 353                 case 2: /* Mouse with wheel */
 354                         input_report_key(dev, BTN_MIDDLE, data[1] & 0x04);
 355                         input_report_rel(dev, REL_WHEEL, (signed char) data[6]);
 356                         /* fall through */
 357
 358                 case 3: /* Mouse without wheel */
 359                         input_report_key(dev, BTN_TOOL_MOUSE, data[7] > 24);
 360                         input_report_key(dev, BTN_LEFT, data[1] & 0x01);
 361                         input_report_key(dev, BTN_RIGHT, data[1] & 0x02);
 362                         input_report_abs(dev, ABS_DISTANCE, data[7]);
 363
 364                         input_report_abs(dev, ABS_X, x);
 365                         input_report_abs(dev, ABS_Y, y);
 366
 367                         input_sync(dev);
 368                         goto exit;
 369         }
 370
 371         if (data[1] & 0x80) {
 372                 input_report_abs(dev, ABS_X, x);
 373                 input_report_abs(dev, ABS_Y, y);
 374         }
 375
 376         input_report_abs(dev, ABS_PRESSURE, le16_to_cpu(*(__le16 *) &data[6]));
 377         input_report_key(dev, BTN_TOUCH, data[1] & 0x01);
 378         input_report_key(dev, BTN_STYLUS, data[1] & 0x02);
 379         input_report_key(dev, BTN_STYLUS2, data[1] & 0x04);
 380
 381         input_sync(dev);
 382
 383 exit:
 384         retval = usb_submit_urb (urb, GFP_ATOMIC);
 385         if (retval)
 386                 err ("%s - usb_submit_urb failed with result %d",
 387                      __FUNCTION__, retval);
 388 }
 389
 390 static int wacom_intuos_inout(struct urb *urb)
 391 {
 392         struct wacom *wacom = urb->context;
 393         unsigned char *data = wacom->data;
 394         struct input_dev *dev = &wacom->dev;
 395         int idx;
 396
 397         /* tool number */
 398         idx = data[1] & 0x01;
 399
 400         /* Enter report */
 401         if ((data[1] & 0xfc) == 0xc0)
 402         {
 403                 /* serial number of the tool */
 404                 wacom->serial[idx] = ((__u32)(data[3] & 0x0f) << 28) +
 405                         ((__u32)data[4] << 20) + ((__u32)data[5] << 12) +
 406                         ((__u32)data[6] << 4) + (data[7] >> 4);
 407
 408                 switch (((__u32)data[2] << 4) | (data[3] >> 4)) {
 409                         case 0x812: /* Inking pen */
 410                         case 0x801: /* Intuos3 Inking pen */
 411                         case 0x012:
 412                                 wacom->tool[idx] = BTN_TOOL_PENCIL;
 413                                 break;
 414                         case 0x822: /* Pen */
 415                         case 0x842:
 416                         case 0x852:
 417                         case 0x823: /* Intuos3 Grip Pen */
 418                         case 0x813: /* Intuos3 Classic Pen */
 419                         case 0x885: /* Intuos3 Marker Pen */
 420                         case 0x022:
 421                                 wacom->tool[idx] = BTN_TOOL_PEN;
 422                                 break;
 423                         case 0x832: /* Stroke pen */
 424                         case 0x032:
 425                                 wacom->tool[idx] = BTN_TOOL_BRUSH;
 426                                 break;
 427                         case 0x007: /* Mouse 4D and 2D */
 428                         case 0x09c:
 429                         case 0x094:
 430                         case 0x017: /* Intuos3 2D Mouse */
 431                                 wacom->tool[idx] = BTN_TOOL_MOUSE;
 432                                 break;
 433                         case 0x096: /* Lens cursor */
 434                         case 0x097: /* Intuos3 Lens cursor */
 435                                 wacom->tool[idx] = BTN_TOOL_LENS;
 436                                 break;
 437                         case 0x82a: /* Eraser */
 438                         case 0x85a:
 439                         case 0x91a:
 440                         case 0xd1a:
 441                         case 0x0fa:
 442                         case 0x82b: /* Intuos3 Grip Pen Eraser */
 443                         case 0x81b: /* Intuos3 Classic Pen Eraser */
 444                         case 0x91b: /* Intuos3 Airbrush Eraser */
 445                                 wacom->tool[idx] = BTN_TOOL_RUBBER;
 446                                 break;
 447                         case 0xd12:
 448                         case 0x912:
 449                         case 0x112:
 450                         case 0x913: /* Intuos3 Airbrush */
 451                                 wacom->tool[idx] = BTN_TOOL_AIRBRUSH;
 452                                 break;  /* Airbrush */
 453                         default: /* Unknown tool */
 454                                 wacom->tool[idx] = BTN_TOOL_PEN;
 455                 }
 456                 input_report_key(dev, wacom->tool[idx], 1);
 457                 input_event(dev, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
 458                 input_sync(dev);
 459                 return 1;
 460         }
 461
 462         /* Exit report */
 463         if ((data[1] & 0xfe) == 0x80) {
 464                 input_report_key(dev, wacom->tool[idx], 0);
 465                 input_event(dev, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
 466                 input_sync(dev);
 467                 return 1;
 468         }
 469
 470         return 0;
 471 }
 472
 473 static void wacom_intuos_general(struct urb *urb)
 474 {
 475         struct wacom *wacom = urb->context;
 476         unsigned char *data = wacom->data;
 477         struct input_dev *dev = &wacom->dev;
 478         unsigned int t;
 479
 480         /* general pen packet */
 481         if ((data[1] & 0xb8) == 0xa0)
 482         {
 483                 t = ((__u32)data[6] << 2) | ((data[7] >> 6) & 3);
 484                 input_report_abs(dev, ABS_PRESSURE, t);
 485                 input_report_abs(dev, ABS_TILT_X,
 486                                 ((data[7] << 1) & 0x7e) | (data[8] >> 7));
 487                 input_report_abs(dev, ABS_TILT_Y, data[8] & 0x7f);
 488                 input_report_key(dev, BTN_STYLUS, data[1] & 2);
 489                 input_report_key(dev, BTN_STYLUS2, data[1] & 4);
 490                 input_report_key(dev, BTN_TOUCH, t > 10);
 491         }
 492
 493         /* airbrush second packet */
 494         if ((data[1] & 0xbc) == 0xb4)
 495         {
 496                 input_report_abs(dev, ABS_WHEEL,
 497                                 ((__u32)data[6] << 2) | ((data[7] >> 6) & 3));
 498                 input_report_abs(dev, ABS_TILT_X,
 499                                 ((data[7] << 1) & 0x7e) | (data[8] >> 7));
 500                 input_report_abs(dev, ABS_TILT_Y, data[8] & 0x7f);
 501         }
 502         return;
 503 }
 504
 505 static void wacom_intuos_irq(struct urb *urb, struct pt_regs *regs)
 506 {
 507         struct wacom *wacom = urb->context;
 508         unsigned char *data = wacom->data;
 509         struct input_dev *dev = &wacom->dev;
 510         unsigned int t;
 511         int idx;
 512         int retval;
 513
 514         switch (urb->status) {
 515         case 0:
 516                 /* success */
 517                 break;
 518         case -ECONNRESET:
 519         case -ENOENT:
 520         case -ESHUTDOWN:
 521                 /* this urb is terminated, clean up */
 522                 dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
 523                 return;
 524         default:
 525                 dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
 526                 goto exit;
 527         }
 528
 529         if (data[0] != 2 && data[0] != 5 && data[0] != 6) {
 530                 dbg("wacom_intuos_irq: received unknown report #%d", data[0]);
 531                 goto exit;
 532         }
 533
 534         input_regs(dev, regs);
 535
 536         /* tool number */
 537         idx = data[1] & 0x01;
 538
 539         /* process in/out prox events */
 540         if (wacom_intuos_inout(urb)) goto exit;
 541
 542         input_report_abs(dev, ABS_X, be16_to_cpu(*(__be16 *) &data[2]));
 543         input_report_abs(dev, ABS_Y, be16_to_cpu(*(__be16 *) &data[4]));
 544         input_report_abs(dev, ABS_DISTANCE, data[9]);
 545
 546         /* process general packets */
 547         wacom_intuos_general(urb);
 548
 549         if ((data[1] & 0xbc) == 0xa8 || (data[1] & 0xbe) == 0xb0) {             /* 4D mouse or Lens cursor packets */
 550
 551                 if (data[1] & 0x02) {                                           /* Rotation packet */
 552
 553                         t = ((__u32)data[6] << 3) | ((data[7] >> 5) & 7);
 554                         input_report_abs(dev, ABS_RZ, (data[7] & 0x20) ? ((t - 1) / 2) : -t / 2);
 555
 556                 } else {
 557
 558                         if ((data[1] & 0x10) == 0) {                            /* 4D mouse packets */
 559
 560                                 input_report_key(dev, BTN_LEFT,   data[8] & 0x01);
 561                                 input_report_key(dev, BTN_MIDDLE, data[8] & 0x02);
 562                                 input_report_key(dev, BTN_RIGHT,  data[8] & 0x04);
 563
 564                                 input_report_key(dev, BTN_SIDE,   data[8] & 0x20);
 565                                 input_report_key(dev, BTN_EXTRA,  data[8] & 0x10);
 566                                 t = ((__u32)data[6] << 2) | ((data[7] >> 6) & 3);
 567                                 input_report_abs(dev, ABS_THROTTLE, (data[8] & 0x08) ? -t : t);
 568
 569                         } else {
 570                                 if (wacom->tool[idx] == BTN_TOOL_MOUSE) {       /* 2D mouse packets */
 571                                         input_report_key(dev, BTN_LEFT,   data[8] & 0x04);
 572                                         input_report_key(dev, BTN_MIDDLE, data[8] & 0x08);
 573                                         input_report_key(dev, BTN_RIGHT,  data[8] & 0x10);
 574                                         input_report_rel(dev, REL_WHEEL,
 575                                             (-(__u32)(data[8] & 0x01) + (__u32)((data[8] & 0x02) >> 1)));
 576                                 }
 577                                 else {     /* Lens cursor packets */
 578                                         input_report_key(dev, BTN_LEFT,   data[8] & 0x01);
 579                                         input_report_key(dev, BTN_MIDDLE, data[8] & 0x02);
 580                                         input_report_key(dev, BTN_RIGHT,  data[8] & 0x04);
 581                                         input_report_key(dev, BTN_SIDE,   data[8] & 0x10);
 582                                         input_report_key(dev, BTN_EXTRA,  data[8] & 0x08);
 583                                 }
 584                         }
 585                 }
 586         }
 587
 588         input_report_key(dev, wacom->tool[idx], 1);
 589         input_event(dev, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
 590         input_sync(dev);
 591
 592 exit:
 593         retval = usb_submit_urb (urb, GFP_ATOMIC);
 594         if (retval)
 595                 err ("%s - usb_submit_urb failed with result %d",
 596                      __FUNCTION__, retval);
 597 }
 598
 599 static void wacom_intuos3_irq(struct urb *urb, struct pt_regs *regs)
 600 {
 601         struct wacom *wacom = urb->context;
 602         unsigned char *data = wacom->data;
 603         struct input_dev *dev = &wacom->dev;
 604         unsigned int t;
 605         int idx, retval;
 606
 607         switch (urb->status) {
 608         case 0:
 609                 /* success */
 610                 break;
 611         case -ECONNRESET:
 612         case -ENOENT:
 613         case -ESHUTDOWN:
 614                 /* this urb is terminated, clean up */
 615                 dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
 616                 return;
 617         default:
 618                 dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
 619                 goto exit;
 620         }
 621
 622         /* check for valid report */
 623         if (data[0] != 2 && data[0] != 5 && data[0] != 12)
 624         {
 625                 printk(KERN_INFO "wacom_intuos3_irq: received unknown report #%d\n", data[0]);
 626                 goto exit;
 627         }
 628
 629         input_regs(dev, regs);
 630
 631         /* tool index is always 0 here since there is no dual input tool */
 632         idx = data[1] & 0x01;
 633
 634         /* pad packets. Works as a second tool and is always in prox */
 635         if (data[0] == 12)
 636         {
 637                 /* initiate the pad as a device */
 638                 if (wacom->tool[1] != BTN_TOOL_FINGER)
 639                 {
 640                         wacom->tool[1] = BTN_TOOL_FINGER;
 641                         input_report_key(dev, wacom->tool[1], 1);
 642                 }
 643                 input_report_key(dev, BTN_0, (data[5] & 0x01));
 644                 input_report_key(dev, BTN_1, (data[5] & 0x02));
 645                 input_report_key(dev, BTN_2, (data[5] & 0x04));
 646                 input_report_key(dev, BTN_3, (data[5] & 0x08));
 647                 input_report_key(dev, BTN_4, (data[6] & 0x01));
 648                 input_report_key(dev, BTN_5, (data[6] & 0x02));
 649                 input_report_key(dev, BTN_6, (data[6] & 0x04));
 650                 input_report_key(dev, BTN_7, (data[6] & 0x08));
 651                 input_report_abs(dev, ABS_RX, ((data[1] & 0x1f) << 8) | data[2]);
 652                 input_report_abs(dev, ABS_RY, ((data[3] & 0x1f) << 8) | data[4]);
 653                 input_event(dev, EV_MSC, MSC_SERIAL, 0xffffffff);
 654                 input_sync(dev);
 655                 goto exit;
 656         }
 657
 658         /* process in/out prox events */
 659         if (wacom_intuos_inout(urb)) goto exit;
 660
 661         input_report_abs(dev, ABS_X, ((__u32)data[2] << 9) | ((__u32)data[3] << 1) | ((data[9] >> 1) & 1));
 662         input_report_abs(dev, ABS_Y, ((__u32)data[4] << 9) | ((__u32)data[5] << 1) | (data[9] & 1));
 663         input_report_abs(dev, ABS_DISTANCE, ((data[9] >> 2) & 0x3f));
 664
 665         /* process general packets */
 666         wacom_intuos_general(urb);
 667
 668         if ((data[1] & 0xbc) == 0xa8 || (data[1] & 0xbe) == 0xb0)
 669         {
 670                 /* Marker pen rotation packet. Reported as wheel due to valuator limitation */
 671                 if (data[1] & 0x02)
 672                 {
 673                         t = ((__u32)data[6] << 3) | ((data[7] >> 5) & 7);
 674                         t = (data[7] & 0x20) ? ((t > 900) ? ((t-1) / 2 - 1350) :
 675                                 ((t-1) / 2 + 450)) : (450 - t / 2) ;
 676                         input_report_abs(dev, ABS_WHEEL, t);
 677                 }
 678
 679                 /* 2D mouse packets */
 680                 if (wacom->tool[idx] == BTN_TOOL_MOUSE)
 681                 {
 682                         input_report_key(dev, BTN_LEFT,   data[8] & 0x04);
 683                         input_report_key(dev, BTN_MIDDLE, data[8] & 0x08);
 684                         input_report_key(dev, BTN_RIGHT,  data[8] & 0x10);
 685                         input_report_key(dev, BTN_SIDE,   data[8] & 0x40);
 686                         input_report_key(dev, BTN_EXTRA,  data[8] & 0x20);
 687                         /* mouse wheel is positive when rolled backwards */
 688                         input_report_rel(dev, REL_WHEEL,  ((__u32)((data[8] & 0x02) >> 1)
 689                                          - (__u32)(data[8] & 0x01)));
 690                 }
 691         }
 692
 693         input_report_key(dev, wacom->tool[idx], 1);
 694         input_event(dev, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
 695         input_sync(dev);
 696
 697 exit:
 698         retval = usb_submit_urb (urb, GFP_ATOMIC);
 699         if (retval)
 700                 err ("%s - usb_submit_urb failed with result %d",
 701                     __FUNCTION__, retval);
 702 }
 703
 704 static struct wacom_features wacom_features[] = {
 705         { "Wacom Penpartner",    7,   5040,  3780,  255, 32, 0, wacom_penpartner_irq },
 706         { "Wacom Graphire",      8,  10206,  7422,  511, 32, 1, wacom_graphire_irq },
 707         { "Wacom Graphire2 4x5", 8,  10206,  7422,  511, 32, 1, wacom_graphire_irq },
 708         { "Wacom Graphire2 5x7", 8,  13918, 10206,  511, 32, 1, wacom_graphire_irq },
 709         { "Wacom Graphire3",     8,  10208,  7424,  511, 32, 1, wacom_graphire_irq },
 710         { "Wacom Graphire3 6x8", 8,  16704, 12064,  511, 32, 1, wacom_graphire_irq },
 711         { "Wacom Intuos 4x5",   10,  12700, 10600, 1023, 15, 2, wacom_intuos_irq },
 712         { "Wacom Intuos 6x8",   10,  20320, 16240, 1023, 15, 2, wacom_intuos_irq },
 713         { "Wacom Intuos 9x12",  10,  30480, 24060, 1023, 15, 2, wacom_intuos_irq },
 714         { "Wacom Intuos 12x12", 10,  30480, 31680, 1023, 15, 2, wacom_intuos_irq },
 715         { "Wacom Intuos 12x18", 10,  45720, 31680, 1023, 15, 2, wacom_intuos_irq },
 716         { "Wacom PL400",         8,   5408,  4056,  255, 32, 3, wacom_pl_irq },
 717         { "Wacom PL500",         8,   6144,  4608,  255, 32, 3, wacom_pl_irq },
 718         { "Wacom PL600",         8,   6126,  4604,  255, 32, 3, wacom_pl_irq },
 719         { "Wacom PL600SX",       8,   6260,  5016,  255, 32, 3, wacom_pl_irq },
 720         { "Wacom PL550",         8,   6144,  4608,  511, 32, 3, wacom_pl_irq },
 721         { "Wacom PL800",         8,   7220,  5780,  511, 32, 3, wacom_pl_irq },
 722         { "Wacom Intuos2 4x5",   10, 12700, 10600, 1023, 15, 2, wacom_intuos_irq },
 723         { "Wacom Intuos2 6x8",   10, 20320, 16240, 1023, 15, 2, wacom_intuos_irq },
 724         { "Wacom Intuos2 9x12",  10, 30480, 24060, 1023, 15, 2, wacom_intuos_irq },
 725         { "Wacom Intuos2 12x12", 10, 30480, 31680, 1023, 15, 2, wacom_intuos_irq },
 726         { "Wacom Intuos2 12x18", 10, 45720, 31680, 1023, 15, 2, wacom_intuos_irq },
 727         { "Wacom Volito",        8,   5104,  3712,  511, 32, 1, wacom_graphire_irq },
 728         { "Wacom Cintiq Partner",8,  20480, 15360,  511, 32, 3, wacom_ptu_irq },
 729         { "Wacom Intuos3 4x5",   10, 25400, 20320, 1023, 15, 4, wacom_intuos3_irq },
 730         { "Wacom Intuos3 6x8",   10, 40640, 30480, 1023, 15, 4, wacom_intuos3_irq },
 731         { "Wacom Intuos3 9x12",  10, 60960, 45720, 1023, 15, 4, wacom_intuos3_irq },
 732         { "Wacom Intuos2 6x8",   10, 20320, 16240, 1023, 15, 2, wacom_intuos_irq },
 733         { }
 734 };
 735
 736 static struct usb_device_id wacom_ids[] = {
 737         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x00) },
 738         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x10) },
 739         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x11) },
 740         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x12) },
 741         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x13) },
 742         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x14) },
 743         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x20) },
 744         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x21) },
 745         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x22) },
 746         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x23) },
 747         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x24) },
 748         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x30) },
 749         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x31) },
 750         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x32) },
 751         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x33) },
 752         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x34) },
 753         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x35) },
 754         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x41) },
 755         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x42) },
 756         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x43) },
 757         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x44) },
 758         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x45) },
 759         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x60) },
 760         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x03) },
 761         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB0) },
 762         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB1) },
 763         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB2) },
 764         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x47) },
 765         { }
 766 };
 767
 768 MODULE_DEVICE_TABLE(usb, wacom_ids);
 769
 770 static int wacom_open(struct input_dev *dev)
 771 {
 772         struct wacom *wacom = dev->private;
 773
 774         if (wacom->open++)
 775                 return 0;
 776
 777         wacom->irq->dev = wacom->usbdev;
 778         if (usb_submit_urb(wacom->irq, GFP_KERNEL)) {
 779                 wacom->open--;
 780                 return -EIO;
 781         }
 782
 783         return 0;
 784 }
 785
 786 static void wacom_close(struct input_dev *dev)
 787 {
 788         struct wacom *wacom = dev->private;
 789
 790         if (!--wacom->open)
 791                 usb_kill_urb(wacom->irq);
 792 }
 793
 794 static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *id)
 795 {
 796         struct usb_device *dev = interface_to_usbdev(intf);
 797         struct usb_endpoint_descriptor *endpoint;
 798         char rep_data[2] = {0x02, 0x02};
 799         struct wacom *wacom;
 800         char path[64];
 801
 802         if (!(wacom = kmalloc(sizeof(struct wacom), GFP_KERNEL)))
 803                 return -ENOMEM;
 804         memset(wacom, 0, sizeof(struct wacom));
 805
 806         wacom->data = usb_buffer_alloc(dev, 10, GFP_KERNEL, &wacom->data_dma);
 807         if (!wacom->data) {
 808                 kfree(wacom);
 809                 return -ENOMEM;
 810         }
 811
 812         wacom->irq = usb_alloc_urb(0, GFP_KERNEL);
 813         if (!wacom->irq) {
 814                 usb_buffer_free(dev, 10, wacom->data, wacom->data_dma);
 815                 kfree(wacom);
 816                 return -ENOMEM;
 817         }
 818
 819         wacom->features = wacom_features + (id - wacom_ids);
 820
 821         wacom->dev.evbit[0] |= BIT(EV_KEY) | BIT(EV_ABS);
 822         wacom->dev.absbit[0] |= BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_PRESSURE);
 823         wacom->dev.keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_PEN) | BIT(BTN_TOUCH) | BIT(BTN_STYLUS);
 824
 825         switch (wacom->features->type) {
 826                 case 1:
 827                         wacom->dev.evbit[0] |= BIT(EV_REL);
 828                         wacom->dev.relbit[0] |= BIT(REL_WHEEL);
 829                         wacom->dev.absbit[0] |= BIT(ABS_DISTANCE);
 830                         wacom->dev.keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE);
 831                         wacom->dev.keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_RUBBER) | BIT(BTN_TOOL_MOUSE) | BIT(BTN_STYLUS2);
 832                         break;
 833
 834                 case 4: /* new functions for Intuos3 */
 835                         wacom->dev.keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_FINGER);
 836                         wacom->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);
 837                         wacom->dev.absbit[0] |= BIT(ABS_RX) | BIT(ABS_RY);
 838                         /* fall through */
 839
 840                 case 2:
 841                         wacom->dev.evbit[0] |= BIT(EV_MSC) | BIT(EV_REL);
 842                         wacom->dev.mscbit[0] |= BIT(MSC_SERIAL);
 843                         wacom->dev.relbit[0] |= BIT(REL_WHEEL);
 844                         wacom->dev.keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE) | BIT(BTN_SIDE) | BIT(BTN_EXTRA);
 845                         wacom->dev.keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_RUBBER) | BIT(BTN_TOOL_MOUSE) | BIT(BTN_TOOL_BRUSH)
 846                                                           | BIT(BTN_TOOL_PENCIL) | BIT(BTN_TOOL_AIRBRUSH) | BIT(BTN_TOOL_LENS) | BIT(BTN_STYLUS2);
 847                         wacom->dev.absbit[0] |= BIT(ABS_DISTANCE) | BIT(ABS_WHEEL) | BIT(ABS_TILT_X) | BIT(ABS_TILT_Y) | BIT(ABS_RZ) | BIT(ABS_THROTTLE);
 848                         break;
 849
 850                 case 3:
 851                         wacom->dev.keybit[LONG(BTN_DIGI)] |= BIT(BTN_STYLUS2) | BIT(BTN_TOOL_RUBBER);
 852                         break;
 853         }
 854
 855         wacom->dev.absmax[ABS_X] = wacom->features->x_max;
 856         wacom->dev.absmax[ABS_Y] = wacom->features->y_max;
 857         wacom->dev.absmax[ABS_PRESSURE] = wacom->features->pressure_max;
 858         wacom->dev.absmax[ABS_DISTANCE] = wacom->features->distance_max;
 859         wacom->dev.absmax[ABS_TILT_X] = 127;
 860         wacom->dev.absmax[ABS_TILT_Y] = 127;
 861         wacom->dev.absmax[ABS_WHEEL] = 1023;
 862
 863         wacom->dev.absmax[ABS_RX] = 4097;
 864         wacom->dev.absmax[ABS_RY] = 4097;
 865         wacom->dev.absmin[ABS_RZ] = -900;
 866         wacom->dev.absmax[ABS_RZ] = 899;
 867         wacom->dev.absmin[ABS_THROTTLE] = -1023;
 868         wacom->dev.absmax[ABS_THROTTLE] = 1023;
 869
 870         wacom->dev.absfuzz[ABS_X] = 4;
 871         wacom->dev.absfuzz[ABS_Y] = 4;
 872
 873         wacom->dev.private = wacom;
 874         wacom->dev.open = wacom_open;
 875         wacom->dev.close = wacom_close;
 876
 877         usb_make_path(dev, path, 64);
 878         sprintf(wacom->phys, "%s/input0", path);
 879
 880         wacom->dev.name = wacom->features->name;
 881         wacom->dev.phys = wacom->phys;
 882         wacom->dev.id.bustype = BUS_USB;
 883         wacom->dev.id.vendor = le16_to_cpu(dev->descriptor.idVendor);
 884         wacom->dev.id.product = le16_to_cpu(dev->descriptor.idProduct);
 885         wacom->dev.id.version = le16_to_cpu(dev->descriptor.bcdDevice);
 886         wacom->dev.dev = &intf->dev;
 887         wacom->usbdev = dev;
 888
 889         endpoint = &intf->cur_altsetting->endpoint[0].desc;
 890
 891         if (wacom->features->pktlen > 10)
 892                 BUG();
 893
 894         usb_fill_int_urb(wacom->irq, dev,
 895                          usb_rcvintpipe(dev, endpoint->bEndpointAddress),
 896                          wacom->data, wacom->features->pktlen,
 897                          wacom->features->irq, wacom, endpoint->bInterval);
 898         wacom->irq->transfer_dma = wacom->data_dma;
 899         wacom->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
 900
 901         input_register_device(&wacom->dev);
 902
 903         /* ask the tablet to report tablet data */
 904         usb_set_report(intf, 3, 2, rep_data, 2);
 905         /* repeat once (not sure why the first call often fails) */
 906         usb_set_report(intf, 3, 2, rep_data, 2);
 907
 908         printk(KERN_INFO "input: %s on %s\n", wacom->features->name, path);
 909
 910         usb_set_intfdata(intf, wacom);
 911
 912         return 0;
 913 }
 914
 915 static void wacom_disconnect(struct usb_interface *intf)
 916 {
 917         struct wacom *wacom = usb_get_intfdata (intf);
 918
 919         usb_set_intfdata(intf, NULL);
 920         if (wacom) {
 921                 usb_kill_urb(wacom->irq);
 922                 input_unregister_device(&wacom->dev);
 923                 usb_free_urb(wacom->irq);
 924                 usb_buffer_free(interface_to_usbdev(intf), 10, wacom->data, wacom->data_dma);
 925                 kfree(wacom);
 926         }
 927 }
 928
 929 static struct usb_driver wacom_driver = {
 930         .owner =        THIS_MODULE,
 931         .name =         "wacom",
 932         .probe =        wacom_probe,
 933         .disconnect =   wacom_disconnect,
 934         .id_table =     wacom_ids,
 935 };
 936
 937 static int __init wacom_init(void)
 938 {
 939         int result = usb_register(&wacom_driver);
 940         if (result == 0)
 941                 info(DRIVER_VERSION ":" DRIVER_DESC);
 942         return result;
 943 }
 944
 945 static void __exit wacom_exit(void)
 946 {
 947         usb_deregister(&wacom_driver);
 948 }
 949
 950 module_init(wacom_init);
 951 module_exit(wacom_exit);