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Diffstat (limited to 'drivers/input/mouse/trackpoint.h')
| -rw-r--r-- | drivers/input/mouse/trackpoint.h | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/drivers/input/mouse/trackpoint.h b/drivers/input/mouse/trackpoint.h new file mode 100644 index 00000000000..9857d8b6ad6 --- /dev/null +++ b/drivers/input/mouse/trackpoint.h @@ -0,0 +1,147 @@ +/* + * 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 /* Toggle 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 0x01 + +#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 */ |