147 lines
4.4 KiB
C
147 lines
4.4 KiB
C
/*
|
|
* IBM TrackPoint PS/2 mouse driver
|
|
*
|
|
* Stephen Evanchik <evanchsa@gmail.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License version 2 as published by
|
|
* the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef _TRACKPOINT_H
|
|
#define _TRACKPOINT_H
|
|
|
|
/*
|
|
* These constants are from the TrackPoint System
|
|
* Engineering documentation Version 4 from IBM Watson
|
|
* research:
|
|
* http://wwwcssrv.almaden.ibm.com/trackpoint/download.html
|
|
*/
|
|
|
|
#define TP_COMMAND 0xE2 /* Commands start with this */
|
|
|
|
#define TP_READ_ID 0xE1 /* Sent for device identification */
|
|
#define TP_MAGIC_IDENT 0x01 /* Sent after a TP_READ_ID followed */
|
|
/* by the firmware ID */
|
|
|
|
|
|
/*
|
|
* Commands
|
|
*/
|
|
#define TP_RECALIB 0x51 /* Recalibrate */
|
|
#define TP_POWER_DOWN 0x44 /* Can only be undone through HW reset */
|
|
#define TP_EXT_DEV 0x21 /* Determines if external device is connected (RO) */
|
|
#define TP_EXT_BTN 0x4B /* Read extended button status */
|
|
#define TP_POR 0x7F /* Execute Power on Reset */
|
|
#define TP_POR_RESULTS 0x25 /* Read Power on Self test results */
|
|
#define TP_DISABLE_EXT 0x40 /* Disable external pointing device */
|
|
#define TP_ENABLE_EXT 0x41 /* Enable external pointing device */
|
|
|
|
/*
|
|
* Mode manipulation
|
|
*/
|
|
#define TP_SET_SOFT_TRANS 0x4E /* Set mode */
|
|
#define TP_CANCEL_SOFT_TRANS 0xB9 /* Cancel mode */
|
|
#define TP_SET_HARD_TRANS 0x45 /* Mode can only be set */
|
|
|
|
|
|
/*
|
|
* Register oriented commands/properties
|
|
*/
|
|
#define TP_WRITE_MEM 0x81
|
|
#define TP_READ_MEM 0x80 /* Not used in this implementation */
|
|
|
|
/*
|
|
* RAM Locations for properties
|
|
*/
|
|
#define TP_SENS 0x4A /* Sensitivity */
|
|
#define TP_MB 0x4C /* Read Middle Button Status (RO) */
|
|
#define TP_INERTIA 0x4D /* Negative Inertia */
|
|
#define TP_SPEED 0x60 /* Speed of TP Cursor */
|
|
#define TP_REACH 0x57 /* Backup for Z-axis press */
|
|
#define TP_DRAGHYS 0x58 /* Drag Hysteresis */
|
|
/* (how hard it is to drag */
|
|
/* with Z-axis pressed) */
|
|
|
|
#define TP_MINDRAG 0x59 /* Minimum amount of force needed */
|
|
/* to trigger dragging */
|
|
|
|
#define TP_THRESH 0x5C /* Minimum value for a Z-axis press */
|
|
#define TP_UP_THRESH 0x5A /* Used to generate a 'click' on Z-axis */
|
|
#define TP_Z_TIME 0x5E /* How sharp of a press */
|
|
#define TP_JENKS_CURV 0x5D /* Minimum curvature for double click */
|
|
|
|
/*
|
|
* Toggling Flag bits
|
|
*/
|
|
#define TP_TOGGLE 0x47 /* Toggle command */
|
|
|
|
#define TP_TOGGLE_MB 0x23 /* Disable/Enable Middle Button */
|
|
#define TP_MASK_MB 0x01
|
|
#define TP_TOGGLE_EXT_DEV 0x23 /* Disable external device */
|
|
#define TP_MASK_EXT_DEV 0x02
|
|
#define TP_TOGGLE_DRIFT 0x23 /* Drift Correction */
|
|
#define TP_MASK_DRIFT 0x80
|
|
#define TP_TOGGLE_BURST 0x28 /* Burst Mode */
|
|
#define TP_MASK_BURST 0x80
|
|
#define TP_TOGGLE_PTSON 0x2C /* Press to Select */
|
|
#define TP_MASK_PTSON 0x01
|
|
#define TP_TOGGLE_HARD_TRANS 0x2C /* Alternate method to set Hard Transparency */
|
|
#define TP_MASK_HARD_TRANS 0x80
|
|
#define TP_TOGGLE_TWOHAND 0x2D /* Two handed */
|
|
#define TP_MASK_TWOHAND 0x01
|
|
#define TP_TOGGLE_STICKY_TWO 0x2D /* Sticky two handed */
|
|
#define TP_MASK_STICKY_TWO 0x04
|
|
#define TP_TOGGLE_SKIPBACK 0x2D /* Suppress movement after drag release */
|
|
#define TP_MASK_SKIPBACK 0x08
|
|
#define TP_TOGGLE_SOURCE_TAG 0x20 /* Bit 3 of the first packet will be set to
|
|
to the origin of the packet (external or TP) */
|
|
#define TP_MASK_SOURCE_TAG 0x80
|
|
#define TP_TOGGLE_EXT_TAG 0x22 /* Bit 3 of the first packet coming from the
|
|
external device will be forced to 1 */
|
|
#define TP_MASK_EXT_TAG 0x04
|
|
|
|
|
|
/* Power on Self Test Results */
|
|
#define TP_POR_SUCCESS 0x3B
|
|
|
|
/*
|
|
* Default power on values
|
|
*/
|
|
#define TP_DEF_SENS 0x80
|
|
#define TP_DEF_INERTIA 0x06
|
|
#define TP_DEF_SPEED 0x61
|
|
#define TP_DEF_REACH 0x0A
|
|
|
|
#define TP_DEF_DRAGHYS 0xFF
|
|
#define TP_DEF_MINDRAG 0x14
|
|
|
|
#define TP_DEF_THRESH 0x08
|
|
#define TP_DEF_UP_THRESH 0xFF
|
|
#define TP_DEF_Z_TIME 0x26
|
|
#define TP_DEF_JENKS_CURV 0x87
|
|
|
|
/* Toggles */
|
|
#define TP_DEF_MB 0x00
|
|
#define TP_DEF_PTSON 0x00
|
|
#define TP_DEF_SKIPBACK 0x00
|
|
#define TP_DEF_EXT_DEV 0x00 /* 0 means enabled */
|
|
|
|
#define MAKE_PS2_CMD(params, results, cmd) ((params<<12) | (results<<8) | (cmd))
|
|
|
|
struct trackpoint_data
|
|
{
|
|
unsigned char sensitivity, speed, inertia, reach;
|
|
unsigned char draghys, mindrag;
|
|
unsigned char thresh, upthresh;
|
|
unsigned char ztime, jenks;
|
|
|
|
unsigned char press_to_select;
|
|
unsigned char skipback;
|
|
|
|
unsigned char ext_dev;
|
|
};
|
|
|
|
extern int trackpoint_detect(struct psmouse *psmouse, int set_properties);
|
|
|
|
#endif /* _TRACKPOINT_H */
|