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wacom_wac.c

/*
 * drivers/input/tablet/wacom_wac.c
 *
 *  USB Wacom Graphire and Wacom Intuos tablet support - Wacom specific code
 *
 */

/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */
#include "wacom.h"
#include "wacom_wac.h"

static int wacom_penpartner_irq(struct wacom_wac *wacom, void *wcombo)
{
      unsigned char *data = wacom->data;

      switch (data[0]) {
            case 1:
                  if (data[5] & 0x80) {
                        wacom->tool[0] = (data[5] & 0x20) ? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
                        wacom->id[0] = (data[5] & 0x20) ? ERASER_DEVICE_ID : STYLUS_DEVICE_ID;
                        wacom_report_key(wcombo, wacom->tool[0], 1);
                        wacom_report_abs(wcombo, ABS_MISC, wacom->id[0]); /* report tool id */
                        wacom_report_abs(wcombo, ABS_X, wacom_le16_to_cpu(&data[1]));
                        wacom_report_abs(wcombo, ABS_Y, wacom_le16_to_cpu(&data[3]));
                        wacom_report_abs(wcombo, ABS_PRESSURE, (signed char)data[6] + 127);
                        wacom_report_key(wcombo, BTN_TOUCH, ((signed char)data[6] > -127));
                        wacom_report_key(wcombo, BTN_STYLUS, (data[5] & 0x40));
                  } else {
                        wacom_report_key(wcombo, wacom->tool[0], 0);
                        wacom_report_abs(wcombo, ABS_MISC, 0); /* report tool id */
                        wacom_report_abs(wcombo, ABS_PRESSURE, -1);
                        wacom_report_key(wcombo, BTN_TOUCH, 0);
                  }
                  break;
            case 2:
                  wacom_report_key(wcombo, BTN_TOOL_PEN, 1);
                  wacom_report_abs(wcombo, ABS_MISC, STYLUS_DEVICE_ID); /* report tool id */
                  wacom_report_abs(wcombo, ABS_X, wacom_le16_to_cpu(&data[1]));
                  wacom_report_abs(wcombo, ABS_Y, wacom_le16_to_cpu(&data[3]));
                  wacom_report_abs(wcombo, ABS_PRESSURE, (signed char)data[6] + 127);
                  wacom_report_key(wcombo, BTN_TOUCH, ((signed char)data[6] > -80) && !(data[5] & 0x20));
                  wacom_report_key(wcombo, BTN_STYLUS, (data[5] & 0x40));
                  break;
            default:
                  printk(KERN_INFO "wacom_penpartner_irq: received unknown report #%d\n", data[0]);
                  return 0;
        }
      return 1;
}

static int wacom_pl_irq(struct wacom_wac *wacom, void *wcombo)
{
      unsigned char *data = wacom->data;
      int prox, id, pressure;

      if (data[0] != 2) {
            dbg("wacom_pl_irq: received unknown report #%d", data[0]);
            return 0;
      }

      prox = data[1] & 0x40;

      id = ERASER_DEVICE_ID;
      if (prox) {

            pressure = (signed char)((data[7] << 1) | ((data[4] >> 2) & 1));
            if (wacom->features->pressure_max > 255)
                  pressure = (pressure << 1) | ((data[4] >> 6) & 1);
            pressure += (wacom->features->pressure_max + 1) / 2;

            /*
             * if going from out of proximity into proximity select between the eraser
             * and the pen based on the state of the stylus2 button, choose eraser if
             * pressed else choose pen. if not a proximity change from out to in, send
             * an out of proximity for previous tool then a in for new tool.
             */
            if (!wacom->tool[0]) {
                  /* Eraser bit set for DTF */
                  if (data[1] & 0x10)
                        wacom->tool[1] = BTN_TOOL_RUBBER;
                  else
                        /* Going into proximity select tool */
                        wacom->tool[1] = (data[4] & 0x20) ? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
            } else {
                  /* was entered with stylus2 pressed */
                  if (wacom->tool[1] == BTN_TOOL_RUBBER && !(data[4] & 0x20)) {
                        /* report out proximity for previous tool */
                        wacom_report_key(wcombo, wacom->tool[1], 0);
                        wacom_input_sync(wcombo);
                        wacom->tool[1] = BTN_TOOL_PEN;
                        return 0;
                  }
            }
            if (wacom->tool[1] != BTN_TOOL_RUBBER) {
                  /* Unknown tool selected default to pen tool */
                  wacom->tool[1] = BTN_TOOL_PEN;
                  id = STYLUS_DEVICE_ID;
            }
            wacom_report_key(wcombo, wacom->tool[1], prox); /* report in proximity for tool */
            wacom_report_abs(wcombo, ABS_MISC, id); /* report tool id */
            wacom_report_abs(wcombo, ABS_X, data[3] | (data[2] << 7) | ((data[1] & 0x03) << 14));
            wacom_report_abs(wcombo, ABS_Y, data[6] | (data[5] << 7) | ((data[4] & 0x03) << 14));
            wacom_report_abs(wcombo, ABS_PRESSURE, pressure);

            wacom_report_key(wcombo, BTN_TOUCH, data[4] & 0x08);
            wacom_report_key(wcombo, BTN_STYLUS, data[4] & 0x10);
            /* Only allow the stylus2 button to be reported for the pen tool. */
            wacom_report_key(wcombo, BTN_STYLUS2, (wacom->tool[1] == BTN_TOOL_PEN) && (data[4] & 0x20));
      } else {
            /* report proximity-out of a (valid) tool */
            if (wacom->tool[1] != BTN_TOOL_RUBBER) {
                  /* Unknown tool selected default to pen tool */
                  wacom->tool[1] = BTN_TOOL_PEN;
            }
            wacom_report_key(wcombo, wacom->tool[1], prox);
      }

      wacom->tool[0] = prox; /* Save proximity state */
      return 1;
}

static int wacom_ptu_irq(struct wacom_wac *wacom, void *wcombo)
{
      unsigned char *data = wacom->data;
      int id;

      if (data[0] != 2) {
            printk(KERN_INFO "wacom_ptu_irq: received unknown report #%d\n", data[0]);
            return 0;
      }

      if (data[1] & 0x04) {
            wacom_report_key(wcombo, BTN_TOOL_RUBBER, data[1] & 0x20);
            wacom_report_key(wcombo, BTN_TOUCH, data[1] & 0x08);
            id = ERASER_DEVICE_ID;
      } else {
            wacom_report_key(wcombo, BTN_TOOL_PEN, data[1] & 0x20);
            wacom_report_key(wcombo, BTN_TOUCH, data[1] & 0x01);
            id = STYLUS_DEVICE_ID;
      }
      wacom_report_abs(wcombo, ABS_MISC, id); /* report tool id */
      wacom_report_abs(wcombo, ABS_X, wacom_le16_to_cpu(&data[2]));
      wacom_report_abs(wcombo, ABS_Y, wacom_le16_to_cpu(&data[4]));
      wacom_report_abs(wcombo, ABS_PRESSURE, wacom_le16_to_cpu(&data[6]));
      wacom_report_key(wcombo, BTN_STYLUS, data[1] & 0x02);
      wacom_report_key(wcombo, BTN_STYLUS2, data[1] & 0x10);
      return 1;
}

static int wacom_graphire_irq(struct wacom_wac *wacom, void *wcombo)
{
      unsigned char *data = wacom->data;
      int x, y, id, rw;

      if (data[0] != 2) {
            dbg("wacom_graphire_irq: received unknown report #%d", data[0]);
            return 0;
      }

      id = STYLUS_DEVICE_ID;
      if (data[1] & 0x80) { /* in prox */

            switch ((data[1] >> 5) & 3) {

                  case 0:     /* Pen */
                        wacom->tool[0] = BTN_TOOL_PEN;
                        break;

                  case 1: /* Rubber */
                        wacom->tool[0] = BTN_TOOL_RUBBER;
                        id = ERASER_DEVICE_ID;
                        break;

                  case 2: /* Mouse with wheel */
                        wacom_report_key(wcombo, BTN_MIDDLE, data[1] & 0x04);
                        if (wacom->features->type == WACOM_G4 ||
                                    wacom->features->type == WACOM_MO) {
                              rw = data[7] & 0x04 ? (data[7] & 0x03)-4 : (data[7] & 0x03);
                              wacom_report_rel(wcombo, REL_WHEEL, -rw);
                        } else
                              wacom_report_rel(wcombo, REL_WHEEL, -(signed char) data[6]);
                        /* fall through */

                  case 3: /* Mouse without wheel */
                        wacom->tool[0] = BTN_TOOL_MOUSE;
                        id = CURSOR_DEVICE_ID;
                        wacom_report_key(wcombo, BTN_LEFT, data[1] & 0x01);
                        wacom_report_key(wcombo, BTN_RIGHT, data[1] & 0x02);
                        if (wacom->features->type == WACOM_G4 ||
                                    wacom->features->type == WACOM_MO)
                              wacom_report_abs(wcombo, ABS_DISTANCE, data[6] & 0x3f);
                        else
                              wacom_report_abs(wcombo, ABS_DISTANCE, data[7] & 0x3f);
                        break;
            }
            x = wacom_le16_to_cpu(&data[2]);
            y = wacom_le16_to_cpu(&data[4]);
            wacom_report_abs(wcombo, ABS_X, x);
            wacom_report_abs(wcombo, ABS_Y, y);
            if (wacom->tool[0] != BTN_TOOL_MOUSE) {
                  wacom_report_abs(wcombo, ABS_PRESSURE, data[6] | ((data[7] & 0x01) << 8));
                  wacom_report_key(wcombo, BTN_TOUCH, data[1] & 0x01);
                  wacom_report_key(wcombo, BTN_STYLUS, data[1] & 0x02);
                  wacom_report_key(wcombo, BTN_STYLUS2, data[1] & 0x04);
            }
            wacom_report_abs(wcombo, ABS_MISC, id); /* report tool id */
            wacom_report_key(wcombo, wacom->tool[0], 1);
      } else if (!(data[1] & 0x90)) {
            wacom_report_abs(wcombo, ABS_X, 0);
            wacom_report_abs(wcombo, ABS_Y, 0);
            if (wacom->tool[0] == BTN_TOOL_MOUSE) {
                  wacom_report_key(wcombo, BTN_LEFT, 0);
                  wacom_report_key(wcombo, BTN_RIGHT, 0);
                  wacom_report_abs(wcombo, ABS_DISTANCE, 0);
            } else {
                  wacom_report_abs(wcombo, ABS_PRESSURE, 0);
                  wacom_report_key(wcombo, BTN_TOUCH, 0);
                  wacom_report_key(wcombo, BTN_STYLUS, 0);
                  wacom_report_key(wcombo, BTN_STYLUS2, 0);
            }
            wacom_report_abs(wcombo, ABS_MISC, 0); /* reset tool id */
            wacom_report_key(wcombo, wacom->tool[0], 0);
      }

      /* send pad data */
      switch (wacom->features->type) {
          case WACOM_G4:
            if (data[7] & 0xf8) {
                  wacom_input_sync(wcombo); /* sync last event */
                  wacom->id[1] = 1;
                  wacom->serial[1] = (data[7] & 0xf8);
                  wacom_report_key(wcombo, BTN_0, (data[7] & 0x40));
                  wacom_report_key(wcombo, BTN_4, (data[7] & 0x80));
                  rw = ((data[7] & 0x18) >> 3) - ((data[7] & 0x20) >> 3);
                  wacom_report_rel(wcombo, REL_WHEEL, rw);
                  wacom_report_key(wcombo, BTN_TOOL_FINGER, 0xf0);
                  wacom_report_abs(wcombo, ABS_MISC, PAD_DEVICE_ID);
                  wacom_input_event(wcombo, EV_MSC, MSC_SERIAL, 0xf0);
            } else if (wacom->id[1]) {
                  wacom_input_sync(wcombo); /* sync last event */
                  wacom->id[1] = 0;
                  wacom_report_key(wcombo, BTN_0, (data[7] & 0x40));
                  wacom_report_key(wcombo, BTN_4, (data[7] & 0x80));
                  wacom_report_key(wcombo, BTN_TOOL_FINGER, 0);
                  wacom_report_abs(wcombo, ABS_MISC, 0);
                  wacom_input_event(wcombo, EV_MSC, MSC_SERIAL, 0xf0);
            }
            break;
          case WACOM_MO:
            if ((data[7] & 0xf8) || (data[8] & 0x80)) {
                  wacom_input_sync(wcombo); /* sync last event */
                  wacom->id[1] = 1;
                  wacom->serial[1] = (data[7] & 0xf8);
                  wacom_report_key(wcombo, BTN_0, (data[7] & 0x08));
                  wacom_report_key(wcombo, BTN_1, (data[7] & 0x20));
                  wacom_report_key(wcombo, BTN_4, (data[7] & 0x10));
                  wacom_report_key(wcombo, BTN_5, (data[7] & 0x40));
                  wacom_report_abs(wcombo, ABS_WHEEL, (data[8] & 0x7f));
                  wacom_report_key(wcombo, BTN_TOOL_FINGER, 0xf0);
                  wacom_report_abs(wcombo, ABS_MISC, PAD_DEVICE_ID);
                  wacom_input_event(wcombo, EV_MSC, MSC_SERIAL, 0xf0);
            } else if (wacom->id[1]) {
                  wacom_input_sync(wcombo); /* sync last event */
                  wacom->id[1] = 0;
                  wacom_report_key(wcombo, BTN_0, (data[7] & 0x08));
                  wacom_report_key(wcombo, BTN_1, (data[7] & 0x20));
                  wacom_report_key(wcombo, BTN_4, (data[7] & 0x10));
                  wacom_report_key(wcombo, BTN_5, (data[7] & 0x40));
                  wacom_report_abs(wcombo, ABS_WHEEL, (data[8] & 0x7f));
                  wacom_report_key(wcombo, BTN_TOOL_FINGER, 0);
                  wacom_report_abs(wcombo, ABS_MISC, 0);
                  wacom_input_event(wcombo, EV_MSC, MSC_SERIAL, 0xf0);
            }
            break;
      }
      return 1;
}

static int wacom_intuos_inout(struct wacom_wac *wacom, void *wcombo)
{
      unsigned char *data = wacom->data;
      int idx;

      /* tool number */
      idx = data[1] & 0x01;

      /* Enter report */
      if ((data[1] & 0xfc) == 0xc0) {
            /* serial number of the tool */
            wacom->serial[idx] = ((data[3] & 0x0f) << 28) +
                  (data[4] << 20) + (data[5] << 12) +
                  (data[6] << 4) + (data[7] >> 4);

            wacom->id[idx] = (data[2] << 4) | (data[3] >> 4);
            switch (wacom->id[idx]) {
                  case 0x812: /* Inking pen */
                  case 0x801: /* Intuos3 Inking pen */
                  case 0x012:
                        wacom->tool[idx] = BTN_TOOL_PENCIL;
                        break;
                  case 0x822: /* Pen */
                  case 0x842:
                  case 0x852:
                  case 0x823: /* Intuos3 Grip Pen */
                  case 0x813: /* Intuos3 Classic Pen */
                  case 0x885: /* Intuos3 Marker Pen */
                  case 0x022:
                        wacom->tool[idx] = BTN_TOOL_PEN;
                        break;
                  case 0x832: /* Stroke pen */
                  case 0x032:
                        wacom->tool[idx] = BTN_TOOL_BRUSH;
                        break;
                  case 0x007: /* Mouse 4D and 2D */
                    case 0x09c:
                  case 0x094:
                  case 0x017: /* Intuos3 2D Mouse */
                        wacom->tool[idx] = BTN_TOOL_MOUSE;
                        break;
                  case 0x096: /* Lens cursor */
                  case 0x097: /* Intuos3 Lens cursor */
                        wacom->tool[idx] = BTN_TOOL_LENS;
                        break;
                  case 0x82a: /* Eraser */
                  case 0x85a:
                    case 0x91a:
                  case 0xd1a:
                  case 0x0fa:
                  case 0x82b: /* Intuos3 Grip Pen Eraser */
                  case 0x81b: /* Intuos3 Classic Pen Eraser */
                  case 0x91b: /* Intuos3 Airbrush Eraser */
                        wacom->tool[idx] = BTN_TOOL_RUBBER;
                        break;
                  case 0xd12:
                  case 0x912:
                  case 0x112:
                  case 0x913: /* Intuos3 Airbrush */
                        wacom->tool[idx] = BTN_TOOL_AIRBRUSH;
                        break;
                  default: /* Unknown tool */
                        wacom->tool[idx] = BTN_TOOL_PEN;
            }
            return 1;
      }

      /* Exit report */
      if ((data[1] & 0xfe) == 0x80) {
            wacom_report_abs(wcombo, ABS_X, 0);
            wacom_report_abs(wcombo, ABS_Y, 0);
            wacom_report_abs(wcombo, ABS_DISTANCE, 0);
            if (wacom->tool[idx] >= BTN_TOOL_MOUSE) {
                  wacom_report_key(wcombo, BTN_LEFT, 0);
                  wacom_report_key(wcombo, BTN_MIDDLE, 0);
                  wacom_report_key(wcombo, BTN_RIGHT, 0);
                  wacom_report_key(wcombo, BTN_SIDE, 0);
                  wacom_report_key(wcombo, BTN_EXTRA, 0);
                  wacom_report_abs(wcombo, ABS_THROTTLE, 0);
                  wacom_report_abs(wcombo, ABS_RZ, 0);
            } else {
                  wacom_report_abs(wcombo, ABS_PRESSURE, 0);
                  wacom_report_abs(wcombo, ABS_TILT_X, 0);
                  wacom_report_abs(wcombo, ABS_TILT_Y, 0);
                  wacom_report_key(wcombo, BTN_STYLUS, 0);
                  wacom_report_key(wcombo, BTN_STYLUS2, 0);
                  wacom_report_key(wcombo, BTN_TOUCH, 0);
                  wacom_report_abs(wcombo, ABS_WHEEL, 0);
            }
            wacom_report_key(wcombo, wacom->tool[idx], 0);
            wacom_report_abs(wcombo, ABS_MISC, 0); /* reset tool id */
            wacom_input_event(wcombo, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
            return 2;
      }
      return 0;
}

static void wacom_intuos_general(struct wacom_wac *wacom, void *wcombo)
{
      unsigned char *data = wacom->data;
      unsigned int t;

      /* general pen packet */
      if ((data[1] & 0xb8) == 0xa0) {
            t = (data[6] << 2) | ((data[7] >> 6) & 3);
            wacom_report_abs(wcombo, ABS_PRESSURE, t);
            wacom_report_abs(wcombo, ABS_TILT_X,
                        ((data[7] << 1) & 0x7e) | (data[8] >> 7));
            wacom_report_abs(wcombo, ABS_TILT_Y, data[8] & 0x7f);
            wacom_report_key(wcombo, BTN_STYLUS, data[1] & 2);
            wacom_report_key(wcombo, BTN_STYLUS2, data[1] & 4);
            wacom_report_key(wcombo, BTN_TOUCH, t > 10);
      }

      /* airbrush second packet */
      if ((data[1] & 0xbc) == 0xb4) {
            wacom_report_abs(wcombo, ABS_WHEEL,
                        (data[6] << 2) | ((data[7] >> 6) & 3));
            wacom_report_abs(wcombo, ABS_TILT_X,
                        ((data[7] << 1) & 0x7e) | (data[8] >> 7));
            wacom_report_abs(wcombo, ABS_TILT_Y, data[8] & 0x7f);
      }
      return;
}

static int wacom_intuos_irq(struct wacom_wac *wacom, void *wcombo)
{
      unsigned char *data = wacom->data;
      unsigned int t;
      int idx, result;

      if (data[0] != 2 && data[0] != 5 && data[0] != 6 && data[0] != 12) {
            dbg("wacom_intuos_irq: received unknown report #%d", data[0]);
                return 0;
      }

      /* tool number */
      idx = data[1] & 0x01;

      /* pad packets. Works as a second tool and is always in prox */
      if (data[0] == 12) {
            /* initiate the pad as a device */
            if (wacom->tool[1] != BTN_TOOL_FINGER)
                  wacom->tool[1] = BTN_TOOL_FINGER;

            wacom_report_key(wcombo, BTN_0, (data[5] & 0x01));
            wacom_report_key(wcombo, BTN_1, (data[5] & 0x02));
            wacom_report_key(wcombo, BTN_2, (data[5] & 0x04));
            wacom_report_key(wcombo, BTN_3, (data[5] & 0x08));
            wacom_report_key(wcombo, BTN_4, (data[6] & 0x01));
            wacom_report_key(wcombo, BTN_5, (data[6] & 0x02));
            wacom_report_key(wcombo, BTN_6, (data[6] & 0x04));
            wacom_report_key(wcombo, BTN_7, (data[6] & 0x08));
            wacom_report_abs(wcombo, ABS_RX, ((data[1] & 0x1f) << 8) | data[2]);
            wacom_report_abs(wcombo, ABS_RY, ((data[3] & 0x1f) << 8) | data[4]);

            if((data[5] & 0x0f) | (data[6] & 0x0f) | (data[1] & 0x1f) |
                  data[2] | (data[3] & 0x1f) | data[4])
                  wacom_report_key(wcombo, wacom->tool[1], 1);
            else
                  wacom_report_key(wcombo, wacom->tool[1], 0);
            wacom_report_abs(wcombo, ABS_MISC, PAD_DEVICE_ID);
            wacom_input_event(wcombo, EV_MSC, MSC_SERIAL, 0xffffffff);
                return 1;
      }

      /* process in/out prox events */
      result = wacom_intuos_inout(wacom, wcombo);
      if (result)
                return result-1;

      /* Only large I3 and I1 & I2 support Lense Cursor */
      if ((wacom->tool[idx] == BTN_TOOL_LENS)
                  && ((wacom->features->type == INTUOS3)
                  || (wacom->features->type == INTUOS3S)))
            return 0;

      /* Cintiq doesn't send data when RDY bit isn't set */
      if ((wacom->features->type == CINTIQ) && !(data[1] & 0x40))
                 return 0;

      if (wacom->features->type >= INTUOS3S) {
            wacom_report_abs(wcombo, ABS_X, (data[2] << 9) | (data[3] << 1) | ((data[9] >> 1) & 1));
            wacom_report_abs(wcombo, ABS_Y, (data[4] << 9) | (data[5] << 1) | (data[9] & 1));
            wacom_report_abs(wcombo, ABS_DISTANCE, ((data[9] >> 2) & 0x3f));
      } else {
            wacom_report_abs(wcombo, ABS_X, wacom_be16_to_cpu(&data[2]));
            wacom_report_abs(wcombo, ABS_Y, wacom_be16_to_cpu(&data[4]));
            wacom_report_abs(wcombo, ABS_DISTANCE, ((data[9] >> 3) & 0x1f));
      }

      /* process general packets */
      wacom_intuos_general(wacom, wcombo);

      /* 4D mouse, 2D mouse, marker pen rotation, or Lens cursor packets */
      if ((data[1] & 0xbc) == 0xa8 || (data[1] & 0xbe) == 0xb0) {

            if (data[1] & 0x02) {
                  /* Rotation packet */
                  if (wacom->features->type >= INTUOS3S) {
                        /* I3 marker pen rotation reported as wheel
                         * due to valuator limitation
                         */
                        t = (data[6] << 3) | ((data[7] >> 5) & 7);
                        t = (data[7] & 0x20) ? ((t > 900) ? ((t-1) / 2 - 1350) :
                              ((t-1) / 2 + 450)) : (450 - t / 2) ;
                        wacom_report_abs(wcombo, ABS_WHEEL, t);
                  } else {
                        /* 4D mouse rotation packet */
                        t = (data[6] << 3) | ((data[7] >> 5) & 7);
                        wacom_report_abs(wcombo, ABS_RZ, (data[7] & 0x20) ?
                              ((t - 1) / 2) : -t / 2);
                  }

            } else if (!(data[1] & 0x10) && wacom->features->type < INTUOS3S) {
                  /* 4D mouse packet */
                  wacom_report_key(wcombo, BTN_LEFT,   data[8] & 0x01);
                  wacom_report_key(wcombo, BTN_MIDDLE, data[8] & 0x02);
                  wacom_report_key(wcombo, BTN_RIGHT,  data[8] & 0x04);

                  wacom_report_key(wcombo, BTN_SIDE,   data[8] & 0x20);
                  wacom_report_key(wcombo, BTN_EXTRA,  data[8] & 0x10);
                  t = (data[6] << 2) | ((data[7] >> 6) & 3);
                  wacom_report_abs(wcombo, ABS_THROTTLE, (data[8] & 0x08) ? -t : t);

            } else if (wacom->tool[idx] == BTN_TOOL_MOUSE) {
                  /* 2D mouse packet */
                  wacom_report_key(wcombo, BTN_LEFT,   data[8] & 0x04);
                  wacom_report_key(wcombo, BTN_MIDDLE, data[8] & 0x08);
                  wacom_report_key(wcombo, BTN_RIGHT,  data[8] & 0x10);
                  wacom_report_rel(wcombo, REL_WHEEL, (data[8] & 0x01)
                                     - ((data[8] & 0x02) >> 1));

                  /* I3 2D mouse side buttons */
                  if (wacom->features->type >= INTUOS3S && wacom->features->type <= INTUOS3L) {
                        wacom_report_key(wcombo, BTN_SIDE,   data[8] & 0x40);
                        wacom_report_key(wcombo, BTN_EXTRA,  data[8] & 0x20);
                  }

            } else if (wacom->features->type < INTUOS3S || wacom->features->type == INTUOS3L) {
                  /* Lens cursor packets */
                  wacom_report_key(wcombo, BTN_LEFT,   data[8] & 0x01);
                  wacom_report_key(wcombo, BTN_MIDDLE, data[8] & 0x02);
                  wacom_report_key(wcombo, BTN_RIGHT,  data[8] & 0x04);
                  wacom_report_key(wcombo, BTN_SIDE,   data[8] & 0x10);
                  wacom_report_key(wcombo, BTN_EXTRA,  data[8] & 0x08);
            }
      }

      wacom_report_abs(wcombo, ABS_MISC, wacom->id[idx]); /* report tool id */
      wacom_report_key(wcombo, wacom->tool[idx], 1);
      wacom_input_event(wcombo, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
      return 1;
}

int wacom_wac_irq(struct wacom_wac *wacom_wac, void *wcombo)
{
      switch (wacom_wac->features->type) {
            case PENPARTNER:
                  return (wacom_penpartner_irq(wacom_wac, wcombo));
                  break;
            case PL:
                  return (wacom_pl_irq(wacom_wac, wcombo));
                  break;
            case WACOM_G4:
            case GRAPHIRE:
            case WACOM_MO:
                  return (wacom_graphire_irq(wacom_wac, wcombo));
                  break;
            case PTU:
                  return (wacom_ptu_irq(wacom_wac, wcombo));
                  break;
            case INTUOS:
            case INTUOS3S:
            case INTUOS3:
            case INTUOS3L:
            case CINTIQ:
                  return (wacom_intuos_irq(wacom_wac, wcombo));
                  break;
            default:
                  return 0;
      }
      return 0;
}

void wacom_init_input_dev(struct input_dev *input_dev, struct wacom_wac *wacom_wac)
{
      switch (wacom_wac->features->type) {
            case WACOM_MO:
                  input_dev_mo(input_dev, wacom_wac);
            case WACOM_G4:
                  input_dev_g4(input_dev, wacom_wac);
                  /* fall through */
            case GRAPHIRE:
                  input_dev_g(input_dev, wacom_wac);
                  break;
            case INTUOS3:
            case INTUOS3L:
            case CINTIQ:
                  input_dev_i3(input_dev, wacom_wac);
                  /* fall through */
            case INTUOS3S:
                  input_dev_i3s(input_dev, wacom_wac);
            case INTUOS:
                  input_dev_i(input_dev, wacom_wac);
                  break;
            case PL:
            case PTU:
                  input_dev_pl(input_dev, wacom_wac);
                  break;
            case PENPARTNER:
                  input_dev_pt(input_dev, wacom_wac);
                  break;
      }
      return;
}

static struct wacom_features wacom_features[] = {
      { "Wacom Penpartner",    7,   5040,  3780,  255,  0, PENPARTNER },
        { "Wacom Graphire",      8,  10206,  7422,  511, 63, GRAPHIRE },
      { "Wacom Graphire2 4x5", 8,  10206,  7422,  511, 63, GRAPHIRE },
      { "Wacom Graphire2 5x7", 8,  13918, 10206,  511, 63, GRAPHIRE },
      { "Wacom Graphire3",     8,  10208,  7424,  511, 63, GRAPHIRE },
      { "Wacom Graphire3 6x8", 8,  16704, 12064,  511, 63, GRAPHIRE },
      { "Wacom Graphire4 4x5", 8,  10208,  7424,  511, 63, WACOM_G4 },
      { "Wacom Graphire4 6x8", 8,  16704, 12064,  511, 63, WACOM_G4 },
      { "Wacom Volito",        8,   5104,  3712,  511, 63, GRAPHIRE },
      { "Wacom PenStation2",   8,   3250,  2320,  255, 63, GRAPHIRE },
      { "Wacom Volito2 4x5",   8,   5104,  3712,  511, 63, GRAPHIRE },
      { "Wacom Volito2 2x3",   8,   3248,  2320,  511, 63, GRAPHIRE },
      { "Wacom PenPartner2",   8,   3250,  2320,  255, 63, GRAPHIRE },
      { "Wacom Bamboo",        9,  14760,  9225,  511, 63, WACOM_MO },
      { "Wacom Intuos 4x5",   10,  12700, 10600, 1023, 31, INTUOS },
      { "Wacom Intuos 6x8",   10,  20320, 16240, 1023, 31, INTUOS },
      { "Wacom Intuos 9x12",  10,  30480, 24060, 1023, 31, INTUOS },
      { "Wacom Intuos 12x12", 10,  30480, 31680, 1023, 31, INTUOS },
      { "Wacom Intuos 12x18", 10,  45720, 31680, 1023, 31, INTUOS },
      { "Wacom PL400",         8,   5408,  4056,  255,  0, PL },
      { "Wacom PL500",         8,   6144,  4608,  255,  0, PL },
      { "Wacom PL600",         8,   6126,  4604,  255,  0, PL },
      { "Wacom PL600SX",       8,   6260,  5016,  255,  0, PL },
      { "Wacom PL550",         8,   6144,  4608,  511,  0, PL },
      { "Wacom PL800",         8,   7220,  5780,  511,  0, PL },
      { "Wacom PL700",         8,   6758,  5406,  511,  0, PL },
      { "Wacom PL510",         8,   6282,  4762,  511,  0, PL },
      { "Wacom DTU710",        8,  34080, 27660,  511,  0, PL },
      { "Wacom DTF521",        8,   6282,  4762,  511,  0, PL },
      { "Wacom DTF720",        8,   6858,  5506,  511,  0, PL },
      { "Wacom Cintiq Partner",8,  20480, 15360,  511,  0, PTU },
      { "Wacom Intuos2 4x5",   10, 12700, 10600, 1023, 31, INTUOS },
      { "Wacom Intuos2 6x8",   10, 20320, 16240, 1023, 31, INTUOS },
      { "Wacom Intuos2 9x12",  10, 30480, 24060, 1023, 31, INTUOS },
      { "Wacom Intuos2 12x12", 10, 30480, 31680, 1023, 31, INTUOS },
      { "Wacom Intuos2 12x18", 10, 45720, 31680, 1023, 31, INTUOS },
      { "Wacom Intuos3 4x5",   10, 25400, 20320, 1023, 63, INTUOS3S },
      { "Wacom Intuos3 6x8",   10, 40640, 30480, 1023, 63, INTUOS3 },
      { "Wacom Intuos3 9x12",  10, 60960, 45720, 1023, 63, INTUOS3 },
      { "Wacom Intuos3 12x12", 10, 60960, 60960, 1023, 63, INTUOS3L },
      { "Wacom Intuos3 12x19", 10, 97536, 60960, 1023, 63, INTUOS3L },
      { "Wacom Intuos3 6x11",  10, 54204, 31750, 1023, 63, INTUOS3 },
      { "Wacom Intuos3 4x6",   10, 31496, 19685, 1023, 63, INTUOS3S },
      { "Wacom Cintiq 21UX",   10, 87200, 65600, 1023, 63, CINTIQ },
      { "Wacom Intuos2 6x8",   10, 20320, 16240, 1023, 31, INTUOS },
      { }
};

static struct usb_device_id wacom_ids[] = {
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x00) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x10) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x11) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x12) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x13) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x14) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x15) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x16) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x60) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x61) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x62) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x63) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x64) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x65) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x20) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x21) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x22) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x23) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x24) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x30) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x31) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x32) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x33) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x34) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x35) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x37) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x38) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x39) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xC0) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xC4) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x03) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x41) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x42) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x43) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x44) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x45) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB0) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB1) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB2) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB3) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB4) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB5) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB7) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x3F) },
      { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x47) },
      { }
};

const struct usb_device_id * get_device_table(void) {
        const struct usb_device_id * id_table = wacom_ids;
        return id_table;
}

struct wacom_features * get_wacom_feature(const struct usb_device_id * id) {
        int index = id - wacom_ids;
        struct wacom_features *wf = &wacom_features[index];
        return wf;
}

MODULE_DEVICE_TABLE(usb, wacom_ids);

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