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#ifndef _SYNAPTICS_H_
#define _SYNAPTICS_H_
#include <X11/Xdefs.h>
/******************************************************************************
* Public definitions.
* Used by driver and the shared memory configurator
*****************************************************************************/
typedef enum {
RT_TAP = 0, /* Right top corner */
RB_TAP, /* Right bottom corner */
LT_TAP, /* Left top corner */
LB_TAP, /* Left bottom corner */
F1_TAP, /* Non-corner tap, one finger */
F2_TAP, /* Non-corner tap, two fingers */
F3_TAP, /* Non-corner tap, three fingers */
MAX_TAP
} TapEvent;
struct SynapticsHwInfo {
unsigned long int model_id; /* Model-ID */
unsigned long int capabilities; /* Capabilities */
unsigned long int ext_cap; /* Extended Capabilities */
unsigned long int identity; /* Identification */
Bool hasGuest; /* Has a guest mouse */
};
#define SHM_SYNAPTICS 23947
typedef struct _SynapticsSHM
{
/* Current device state */
int x, y; /* actual x, y coordinates */
int z; /* pressure value */
int numFingers; /* number of fingers */
int fingerWidth; /* finger width value */
int left, right, up, down; /* left/right/up/down buttons */
Bool multi[8];
Bool middle;
int guest_left, guest_mid, guest_right; /* guest device buttons */
int guest_dx, guest_dy; /* guest device movement */
/* Probed hardware properties */
struct SynapticsHwInfo synhw;
/* Parameter data */
int left_edge, right_edge, top_edge, bottom_edge; /* edge coordinates absolute */
int finger_low, finger_high; /* finger detection values in Z-values */
unsigned long tap_time;
int tap_move; /* max. tapping-time and movement in packets and coord. */
int emulate_mid_button_time; /* Max time between left and right button presses to
emulate a middle button press. */
int scroll_dist_vert; /* Scrolling distance in absolute coordinates */
int scroll_dist_horiz; /* Scrolling distance in absolute coordinates */
double min_speed, max_speed, accl; /* movement parameters */
int edge_motion_min_z; /* finger pressure at which minimum edge motion speed is set */
int edge_motion_max_z; /* finger pressure at which maximum edge motion speed is set */
int edge_motion_min_speed; /* slowest setting for edge motion speed */
int edge_motion_max_speed; /* fastest setting for edge motion speed */
Bool edge_motion_use_always; /* If false, egde motion is used only when dragging */
Bool updown_button_scrolling; /* Up/Down-Button scrolling or middle/double-click */
Bool touchpad_off; /* Switches the touchpad off */
Bool guestmouse_off; /* Switches the guest mouse off */
Bool locked_drags; /* Enable locked drags */
int tap_action[MAX_TAP]; /* Button to report on tap events */
Bool circular_scrolling; /* Enable circular scrolling */
double scroll_dist_circ; /* Scrolling angle radians */
int circular_trigger; /* Trigger area for circular scrolling */
} SynapticsSHM;
/*
* The x/y limits are taken from the Synaptics TouchPad interfacing Guide,
* section 2.3.2, which says that they should be valid regardless of the
* actual size of the sensor.
*/
#define XMIN_NOMINAL 1472
#define XMAX_NOMINAL 5472
#define YMIN_NOMINAL 1408
#define YMAX_NOMINAL 4448
#define XMAX_VALID 6143
#ifdef SYNAPTICS_PRIVATE
#include "synproto.h"
/******************************************************************************
* Definitions
* structs, typedefs, #defines, enums
*****************************************************************************/
#define SYNAPTICS_MOVE_HISTORY 5
typedef struct _SynapticsTapRec
{
int x, y;
unsigned int millis;
} SynapticsTapRec;
typedef struct _SynapticsMoveHist
{
int x, y;
} SynapticsMoveHistRec;
enum MidButtonEmulation {
MBE_OFF, /* No button pressed */
MBE_LEFT, /* Left button pressed, waiting for right button or timeout */
MBE_RIGHT, /* Right button pressed, waiting for left button or timeout */
MBE_MID, /* Left and right buttons pressed, waiting for both buttons
to be released */
MBE_TIMEOUT /* Waiting for both buttons to be released. */
};
/* See docs/tapndrag.dia for a state machine diagram */
enum TapState {
TS_START, /* No tap/drag in progress */
TS_1, /* After first touch */
TS_MOVE, /* Pointer movement enabled */
TS_2, /* After first release */
TS_3, /* After second touch */
TS_DRAG, /* Pointer drag enabled */
TS_4, /* After release when "locked drags" enabled */
TS_5 /* After touch when "locked drags" enabled */
};
enum TapButtonState {
TBS_BUTTON_UP, /* "Virtual tap button" is up */
TBS_BUTTON_DOWN, /* "Virtual tap button" is down */
TBS_BUTTON_DOWN_UP /* Send button down event + set up state */
};
typedef struct _SynapticsPrivateRec
{
/* shared memory pointer */
SynapticsSHM *synpara;
struct SynapticsProtocolOperations* proto_ops;
struct SynapticsHwState hwState;
/* Data read from the touchpad */
struct SynapticsHwInfo synhw;
Bool shm_config; /* True when shared memory area allocated */
OsTimerPtr timer; /* for up/down-button repeat, tap processing, etc */
struct CommData comm;
int fifofd; /* fd for fifo */
SynapticsMoveHistRec move_hist[SYNAPTICS_MOVE_HISTORY]; /* movement history */
int largest_valid_x; /* Largest valid X coordinate seen so far */
int scroll_y; /* last y-scroll position */
int scroll_x; /* last x-scroll position */
double scroll_a; /* last angle-scroll position */
unsigned long count_packet_finger; /* packet counter with finger on the touchpad */
unsigned int button_delay_millis; /* button delay for 3rd button emulation */
unsigned int prev_up; /* Previous up button value, for double click emulation */
Bool finger_flag; /* previous finger */
enum TapState tap_state; /* State of tap processing */
int tap_max_fingers; /* Max number of fingers seen since entering start state */
int tap_button; /* Which button started the tap processing */
enum TapButtonState tap_button_state; /* Current tap action */
SynapticsTapRec touch_on; /* data when the touchpad is touched/released */
Bool vert_scroll_on; /* scrolling flag */
Bool horiz_scroll_on; /* scrolling flag */
Bool circ_scroll_on; /* scrolling flag */
double frac_x, frac_y; /* absolute -> relative fraction */
enum MidButtonEmulation mid_emu_state; /* emulated 3rd button */
int repeatButtons; /* buttons for repeat */
unsigned long nextRepeat; /* Time when to trigger next auto repeat event */
int lastButtons; /* last state of the buttons */
int palm; /* Set to true when palm detected, reset to false when
palm/finger contact disappears */
int prev_z; /* previous z value, for palm detection */
int avg_width; /* weighted average of previous fingerWidth values */
} SynapticsPrivate;
Bool QueryHardware(LocalDevicePtr);
#endif /* SYNAPTICS_PRIVATE */
#endif /* _SYNAPTICS_H_ */
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