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