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/*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the name of Red Hat
* not be used in advertising or publicity pertaining to distribution
* of the software without specific, written prior permission. Red
* Hat makes no representations about the suitability of this software
* for any purpose. It is provided "as is" without express or implied
* warranty.
*
* THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
* NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _SYNAPTICSSTR_H_
#define _SYNAPTICSSTR_H_
#include "synproto.h"
/******************************************************************************
* Definitions
* structs, typedefs, #defines, enums
*****************************************************************************/
#define SYNAPTICS_MOVE_HISTORY 5
typedef struct _SynapticsMoveHist
{
int x, y;
int millis;
} SynapticsMoveHistRec;
enum FingerState { /* Note! The order matters. Compared with < operator. */
FS_UNTOUCHED,
FS_TOUCHED,
FS_PRESSED
};
enum MovingState {
MS_FALSE,
MS_TOUCHPAD_RELATIVE,
MS_TRACKSTICK /* trackstick is always relative */
};
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. */
MBE_LEFT_CLICK, /* Emulate left button click. */
MBE_RIGHT_CLICK, /* Emulate right button click. */
};
/* 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_2A, /* After first release */
TS_2B, /* After second/third/... release */
TS_SINGLETAP, /* After timeout 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
{
SynapticsSHM synpara_default; /* Default parameter settings, read from
the X config file */
SynapticsSHM *synpara; /* Current parameter settings. Will point to
shared memory if shm_config is true */
struct SynapticsProtocolOperations* proto_ops;
struct SynapticsHwState hwState;
struct SynapticsHwInfo synhw; /* Data read from the touchpad */
Bool shm_config; /* True when shared memory area allocated */
OsTimerPtr timer; /* for up/down-button repeat, tap processing, etc */
struct CommData comm;
SynapticsMoveHistRec move_hist[SYNAPTICS_MOVE_HISTORY]; /* movement history */
int hist_index; /* Last added entry in move_hist[] */
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 */
int count_packet_finger; /* packet counter with finger on the touchpad */
int button_delay_millis; /* button delay for 3rd button emulation */
Bool prev_up; /* Previous up button value, for double click emulation */
enum FingerState finger_state; /* previous finger state */
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 */
SynapticsMoveHistRec touch_on; /* data when the touchpad is touched/released */
enum MovingState moving_state; /* previous moving state */
Bool vert_scroll_edge_on; /* Keeps track of currently active scroll modes */
Bool horiz_scroll_edge_on; /* Keeps track of currently active scroll modes */
Bool vert_scroll_twofinger_on; /* Keeps track of currently active scroll modes */
Bool horiz_scroll_twofinger_on; /* Keeps track of currently active scroll modes */
Bool circ_scroll_on; /* Keeps track of currently active scroll modes */
Bool circ_scroll_vert; /* True: Generate vertical scroll events
False: Generate horizontal events */
int trackstick_neutral_x; /* neutral x position for trackstick mode */
int trackstick_neutral_y; /* neutral y position for trackstick mode */
double autoscroll_xspd; /* Horizontal coasting speed */
double autoscroll_yspd; /* Vertical coasting speed */
double autoscroll_x; /* Accumulated horizontal coasting scroll */
double autoscroll_y; /* Accumulated vertical coasting scroll */
int scroll_packet_count; /* Scroll duration */
double frac_x, frac_y; /* absolute -> relative fraction */
enum MidButtonEmulation mid_emu_state; /* emulated 3rd button */
int repeatButtons; /* buttons for repeat */
int 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 */
int minx, maxx, miny, maxy; /* min/max dimensions as detected */
int minp, maxp, minw, maxw; /* min/max pressure and finger width as detected */
Bool has_left; /* left button detected for this device */
Bool has_right; /* right button detected for this device */
Bool has_middle; /* middle button detected for this device */
Bool has_double; /* double click detected for this device */
Bool has_triple; /* triple click detected for this device */
Bool has_pressure; /* device reports pressure */
} SynapticsPrivate;
#endif /* _SYNAPTICSSTR_H_ */
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