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#ifndef _SYNAPTICS_H_
#define _SYNAPTICS_H_
#include "linux_input.h"
/******************************************************************************
* Public definitions.
* Used by driver and the shared memory configurator
*****************************************************************************/
#define SHM_SYNAPTICS 23947
typedef struct _SynapticsSHM
{
/* Current device state */
int x, y; /* actual x, y Coordinates */
int z; /* pressure value */
int w; /* finger width value */
int left, right, up, down; /* left/right/up/down buttons */
/* Probed hardware properties */
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 isSynaptics; /* Synaptics touchpad active */
/* 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_speed; /* Edge motion speed when dragging */
char* repeater; /* Repeater on or off */
Bool updown_button_scrolling; /* Up/Down-Button scrolling or middle/double-click */
} SynapticsSHM, *SynapticsSHMPtr;
#ifdef SYNAPTICS_PRIVATE
/******************************************************************************
* Definitions
* structs, typedefs, #defines, enums
*****************************************************************************/
#define SYNAPTICS_MOVE_HISTORY 5
/*
* A structure to describe the state of the touchpad hardware (buttons and pad)
*/
struct SynapticsHwState {
int millis; /* Timestamp in milliseconds */
int x; /* X position of finger */
int y; /* Y position of finger */
int z; /* Finger pressure */
int w; /* Finger width/finger count */
Bool left;
Bool right;
Bool up;
Bool down;
Bool cbLeft;
Bool cbRight;
};
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. */
};
enum SynapticsProtocol {
SYN_PROTO_PSAUX, /* Raw psaux device */
SYN_PROTO_EVENT /* Linux kernel event interface */
};
typedef struct _SynapticsPrivateRec
{
/* shared memory pointer */
SynapticsSHMPtr synpara;
enum SynapticsProtocol proto;
struct SynapticsHwState hwState;
/* Data read from the touchpad */
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 isSynaptics; /* Synaptics touchpad active */
Bool shm_config; /* True when shared memory area allocated */
OsTimerPtr timer; /* for up/down-button repeat, tap processing, etc */
/* Data for normal processing */
XISBuffer *buffer;
unsigned char protoBuf[6]; /* Buffer for Packet */
unsigned char lastByte; /* letztes gelesene byte */
int outOfSync; /* How many consecutive incorrect packets we have received */
int protoBufTail;
int fifofd; /* fd for fifo */
SynapticsTapRec touch_on; /* data when the touchpad is touched */
SynapticsMoveHistRec move_hist[SYNAPTICS_MOVE_HISTORY]; /* movement history */
int scroll_y; /* last y-scroll position */
int scroll_x; /* last x-scroll position */
unsigned long count_packet_finger; /* packet counter with finger on the touchpad */
unsigned int tapping_millis; /* packet counter for tapping */
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 */
Bool tap, drag, doubletap; /* feature flags */
Bool tap_left, tap_mid, tap_right; /* tapping buttons */
Bool vert_scroll_on; /* scrolling flag */
Bool horiz_scroll_on; /* scrolling flag */
double frac_x, frac_y; /* absoulte -> 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 finger_count; /* tap counter for fingers */
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_w; /* weighted average of previous w values */
}
SynapticsPrivateRec, *SynapticsPrivatePtr;
static Bool DeviceControl(DeviceIntPtr, int);
static void ReadInput(LocalDevicePtr);
static int HandleState(LocalDevicePtr, struct SynapticsHwState*);
static int ControlProc(LocalDevicePtr, xDeviceCtl*);
static void CloseProc(LocalDevicePtr);
static int SwitchMode(ClientPtr, DeviceIntPtr, int);
static Bool ConvertProc(LocalDevicePtr, int, int, int, int, int, int, int, int, int*, int*);
static Bool QueryHardware(LocalDevicePtr);
static Bool DeviceInit(DeviceIntPtr);
static Bool DeviceOn(DeviceIntPtr);
static Bool DeviceOff(DeviceIntPtr);
static Bool DeviceInit(DeviceIntPtr);
static Bool SynapticsGetHwState(LocalDevicePtr, SynapticsPrivatePtr, struct SynapticsHwState*);
static Bool SynapticsParseEventData(LocalDevicePtr, SynapticsPrivatePtr,
struct SynapticsHwState*);
static Bool SynapticsReadEvent(SynapticsPrivatePtr, struct input_event*);
static Bool SynapticsParseRawPacket(LocalDevicePtr, SynapticsPrivatePtr,
struct SynapticsHwState*);
static Bool SynapticsGetPacket(LocalDevicePtr, SynapticsPrivatePtr);
static void PrintIdent(SynapticsPrivatePtr);
#endif
/*
* DO NOT PUT ANYTHING AFTER THIS ENDIF
*/
#endif /* _SYNAPTICS_H_ */
/* Local Variables: */
/* tab-width: 4 */
/* End: */
/* vim:ts=4:sw=4:cindent:
*/
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