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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)
 */

#ifndef EVDEV_H
#define EVDEV_H

#include <linux/input.h>

#include <xf86Xinput.h>
#include <xf86_OSproc.h>

#if defined(XKB)
/* XXX VERY WRONG.  this is a client side header. */
#include <X11/extensions/XKBstr.h>
#endif

#define EVDEV_MAXBUTTONS 32

/* axis specific data for wheel emulation */
typedef struct {
    int up_button;
    int down_button;
    int traveled_distance;
} WheelAxis, *WheelAxisPtr;

typedef struct {
    int kernel24;
    int screen;
    int min_x, min_y, max_x, max_y;
    int abs_x, abs_y, old_x, old_y;
    int flags;
    int tool;
    int buttons;            /* number of buttons */

    /* XKB stuff has to be per-device rather than per-driver */
    int noXkb;
#ifdef XKB
    char                    *xkb_rules;
    char                    *xkb_model;
    char                    *xkb_layout;
    char                    *xkb_variant;
    char                    *xkb_options;
    XkbComponentNamesRec    xkbnames;
#endif
    /* 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;
    } emulateWheel;

    unsigned char btnmap[32];           /* config-file specified button mapping */
} EvdevRec, *EvdevPtr;

/* 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 EvdevMBEmuFinalize(InputInfoPtr);
void EvdevMBEmuEnable(InputInfoPtr, BOOL);

unsigned int EvdevUtilButtonEventToButtonNumber(int code);

#if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 3
void EvdevMBEmuInitProperty(DeviceIntPtr);
BOOL EvdevMBEmuSetProperty(DeviceIntPtr, Atom, XIPropertyValuePtr);

void EvdevWheelEmuInitProperty(DeviceIntPtr);
BOOL EvdevWheelEmuSetProperty(DeviceIntPtr, Atom, XIPropertyValuePtr);
#endif

/* 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 EvdevDragLockInit(InputInfoPtr pInfo);
BOOL EvdevDragLockFilterEvent(InputInfoPtr pInfo, unsigned int button, int value);
#endif