1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
/*
* 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. */
};
/* 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;
int fifofd; /* fd for fifo */
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 */
} SynapticsPrivate;
#endif /* _SYNAPTICSSTR_H_ */
|
