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/*
* Copyright © 2004-2008 Red Hat, Inc.
* Copyright © 2008 University of South Australia
*
* 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.
*
* Authors:
* Kristian Høgsberg (krh@redhat.com)
* Adam Jackson (ajax@redhat.com)
* Peter Hutterer (peter@cs.unisa.edu.au)
* Oliver McFadden (oliver.mcfadden@nokia.com)
*/
#ifndef EVDEV_H
#define EVDEV_H
#include <linux/input.h>
#include <linux/types.h>
#include <xf86Xinput.h>
#include <xf86_OSproc.h>
#include <xkbstr.h>
#ifndef EV_CNT /* linux 2.6.23 kernels and earlier lack _CNT defines */
#define EV_CNT (EV_MAX+1)
#endif
#ifndef KEY_CNT
#define KEY_CNT (KEY_MAX+1)
#endif
#ifndef REL_CNT
#define REL_CNT (REL_MAX+1)
#endif
#ifndef ABS_CNT
#define ABS_CNT (ABS_MAX+1)
#endif
#ifndef LED_CNT
#define LED_CNT (LED_MAX+1)
#endif
#define EVDEV_MAXBUTTONS 32
#define EVDEV_MAXQUEUE 32
/* evdev flags */
#define EVDEV_KEYBOARD_EVENTS (1 << 0)
#define EVDEV_BUTTON_EVENTS (1 << 1)
#define EVDEV_RELATIVE_EVENTS (1 << 2)
#define EVDEV_ABSOLUTE_EVENTS (1 << 3)
#define EVDEV_TOUCHPAD (1 << 4)
#define EVDEV_INITIALIZED (1 << 5) /* WheelInit etc. called already? */
#define EVDEV_TOUCHSCREEN (1 << 6)
#define EVDEV_CALIBRATED (1 << 7) /* run-time calibrated? */
#define EVDEV_TABLET (1 << 8) /* device looks like a tablet? */
#define EVDEV_UNIGNORE_ABSOLUTE (1 << 9) /* explicitly unignore abs axes */
#define EVDEV_UNIGNORE_RELATIVE (1 << 10) /* explicitly unignore rel axes */
#define EVDEV_RELATIVE_MODE (1 << 11) /* Force relative events for devices with absolute axes */
#if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 3
#define HAVE_PROPERTIES 1
#endif
#ifndef MAX_VALUATORS
#define MAX_VALUATORS 36
#endif
#if GET_ABI_MAJOR(ABI_XINPUT_VERSION) < 5
typedef struct {
char *rules;
char *model;
char *layout;
char *variant;
char *options;
} XkbRMLVOSet;
#endif
#define LONG_BITS (sizeof(long) * 8)
/* Number of longs needed to hold the given number of bits */
#define NLONGS(x) (((x) + LONG_BITS - 1) / LONG_BITS)
/* axis specific data for wheel emulation */
typedef struct {
int up_button;
int down_button;
int traveled_distance;
} WheelAxis, *WheelAxisPtr;
/* Event queue used to defer keyboard/button events until EV_SYN time. */
typedef struct {
enum {
EV_QUEUE_KEY, /* xf86PostKeyboardEvent() */
EV_QUEUE_BTN, /* xf86PostButtonEvent() */
} type;
int key; /* May be either a key code or button number. */
int val; /* State of the key/button; pressed or released. */
} EventQueueRec, *EventQueuePtr;
typedef struct {
const char *device;
int grabDevice; /* grab the event device? */
int num_vals; /* number of valuators */
int axis_map[max(ABS_CNT, REL_CNT)]; /* Map evdev <axis> to index */
int vals[MAX_VALUATORS];
int old_vals[MAX_VALUATORS]; /* Translate absolute inputs to relative */
int flags;
int tool;
int num_buttons; /* number of buttons */
BOOL swap_axes;
BOOL invert_x;
BOOL invert_y;
int delta[REL_CNT];
unsigned int abs, rel;
/* XKB stuff has to be per-device rather than per-driver */
#if GET_ABI_MAJOR(ABI_XINPUT_VERSION) < 5
XkbComponentNamesRec xkbnames;
#endif
XkbRMLVOSet rmlvo;
/* Middle mouse button emulation */
struct {
BOOL enabled;
BOOL pending; /* timer waiting? */
int buttonstate; /* phys. button state */
int state; /* state machine (see bt3emu.c) */
Time expires; /* time of expiry */
Time timeout;
} emulateMB;
struct {
int meta; /* meta key to lock any button */
BOOL meta_state; /* meta_button state */
unsigned int lock_pair[EVDEV_MAXBUTTONS]; /* specify a meta/lock pair */
BOOL lock_state[EVDEV_MAXBUTTONS]; /* state of any locked buttons */
} dragLock;
struct {
BOOL enabled;
int button;
int button_state;
int inertia;
WheelAxis X;
WheelAxis Y;
Time expires; /* time of expiry */
Time timeout;
} emulateWheel;
/* run-time calibration */
struct {
int min_x;
int max_x;
int min_y;
int max_y;
} calibration;
unsigned char btnmap[32]; /* config-file specified button mapping */
int reopen_attempts; /* max attempts to re-open after read failure */
int reopen_left; /* number of attempts left to re-open the device */
OsTimerPtr reopen_timer;
/* Cached info from device. */
char name[1024];
unsigned long bitmask[NLONGS(EV_CNT)];
unsigned long key_bitmask[NLONGS(KEY_CNT)];
unsigned long rel_bitmask[NLONGS(REL_CNT)];
unsigned long abs_bitmask[NLONGS(ABS_CNT)];
unsigned long led_bitmask[NLONGS(LED_CNT)];
struct input_absinfo absinfo[ABS_CNT];
/* minor/major number */
dev_t min_maj;
/* Event queue used to defer keyboard/button events until EV_SYN time. */
int num_queue;
EventQueueRec queue[EVDEV_MAXQUEUE];
} EvdevRec, *EvdevPtr;
/* Event posting functions */
void EvdevQueueKbdEvent(InputInfoPtr pInfo, struct input_event *ev, int value);
void EvdevQueueButtonEvent(InputInfoPtr pInfo, int button, int value);
void EvdevPostButtonEvent(InputInfoPtr pInfo, int button, int value);
void EvdevQueueButtonClicks(InputInfoPtr pInfo, int button, int count);
void EvdevPostRelativeMotionEvents(InputInfoPtr pInfo, int *num_v, int *first_v,
int v[MAX_VALUATORS]);
void EvdevPostAbsoluteMotionEvents(InputInfoPtr pInfo, int *num_v, int *first_v,
int v[MAX_VALUATORS]);
unsigned int EvdevUtilButtonEventToButtonNumber(EvdevPtr pEvdev, int code);
/* Middle Button emulation */
int EvdevMBEmuTimer(InputInfoPtr);
BOOL EvdevMBEmuFilterEvent(InputInfoPtr, int, BOOL);
void EvdevMBEmuWakeupHandler(pointer, int, pointer);
void EvdevMBEmuBlockHandler(pointer, struct timeval**, pointer);
void EvdevMBEmuPreInit(InputInfoPtr);
void EvdevMBEmuOn(InputInfoPtr);
void EvdevMBEmuFinalize(InputInfoPtr);
void EvdevMBEmuEnable(InputInfoPtr, BOOL);
/* Mouse Wheel emulation */
void EvdevWheelEmuPreInit(InputInfoPtr pInfo);
BOOL EvdevWheelEmuFilterButton(InputInfoPtr pInfo, unsigned int button, int value);
BOOL EvdevWheelEmuFilterMotion(InputInfoPtr pInfo, struct input_event *pEv);
/* Draglock code */
void EvdevDragLockPreInit(InputInfoPtr pInfo);
BOOL EvdevDragLockFilterEvent(InputInfoPtr pInfo, unsigned int button, int value);
#ifdef HAVE_PROPERTIES
void EvdevMBEmuInitProperty(DeviceIntPtr);
void EvdevWheelEmuInitProperty(DeviceIntPtr);
void EvdevDragLockInitProperty(DeviceIntPtr);
#endif
#endif
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