src/add-ons/kernel/bus_managers/ps2/ps2_trackpoint.cpp

   1 /*
   2  * Copyright 2009-2010, Haiku, Inc.
   3  * Distributed under the terms of the MIT License.
   4  *
   5  * Authors:
   6  *              Clemens Zeidler (haiku@Clemens-Zeidler.de)
   7  */
   8
   9
  10 #include <malloc.h>
  11 #include <string.h>
  12
  13 #include <keyboard_mouse_driver.h>
  14
  15 #include "ps2_trackpoint.h"
  16
  17
  18 const char* kTrackpointPath[4] = {
  19         "input/mouse/ps2/ibm_trackpoint_0",
  20         "input/mouse/ps2/ibm_trackpoint_1",
  21         "input/mouse/ps2/ibm_trackpoint_2",
  22         "input/mouse/ps2/ibm_trackpoint_3"
  23 };
  24
  25
  26 status_t
  27 probe_trackpoint(ps2_dev* dev)
  28 {
  29         uint8 val[2];
  30
  31         TRACE("TRACKPOINT: probe\n");
  32         ps2_dev_command(dev, 0xE1, NULL, 0, val, 2);
  33
  34         if (val[0] != 0x01) {
  35                 TRACE("TRACKPOINT: not found\n");
  36                 return B_ERROR;
  37         }
  38         dev->name = kTrackpointPath[dev->idx];
  39         dev->packet_size = 3;
  40         TRACE("TRACKPOINT: version 0x%x found\n", val[1]);
  41
  42         return B_OK;
  43 }