kinput.c 37.5 KB
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/*
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 * Id: kinput.c,v 1.1 1999/11/02 03:54:46 keithp Exp $
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 *
 * Copyright  1999 Keith Packard
 *
 * 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 Keith Packard not be used in
 * advertising or publicity pertaining to distribution of the software without
 * specific, written prior permission.  Keith Packard makes no
 * representations about the suitability of this software for any purpose.  It
 * is provided "as is" without express or implied warranty.
 *
 * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
 * EVENT SHALL KEITH PACKARD 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.
 */
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/* $XFree86: xc/programs/Xserver/hw/kdrive/kinput.c,v 1.29 2002/11/05 05:28:34 keithp Exp $ */
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#include "kdrive.h"
#include "inputstr.h"

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#define XK_PUBLISHING
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#include <X11/keysym.h>
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#include <X11/XF86keysym.h>
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#include "kkeymap.h"
#include <signal.h>
#include <stdio.h>

static DeviceIntPtr	pKdKeyboard, pKdPointer;

static KdMouseFuncs	*kdMouseFuncs;
static KdKeyboardFuncs	*kdKeyboardFuncs;
static unsigned long	kdEmulationTimeout;
static Bool		kdTimeoutPending;
static int		kdBellPitch;
static int		kdBellDuration;
static int		kdLeds;
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static Bool		kdInputEnabled;
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static Bool		kdOffScreen;
static unsigned long	kdOffScreenTime;
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static KdMouseMatrix	kdMouseMatrix = {
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   { { 1, 0, 0 },
     { 0, 1, 0 } }
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};
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#ifdef TOUCHSCREEN
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static KdMouseFuncs	*kdTsFuncs;
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#endif

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int		kdMouseButtonCount;
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int		kdMinScanCode;
int		kdMaxScanCode;
int		kdMinKeyCode;
int		kdMaxKeyCode;
int		kdKeymapWidth = KD_MAX_WIDTH;
KeySym		kdKeymap[KD_MAX_LENGTH * KD_MAX_WIDTH];
CARD8		kdModMap[MAP_LENGTH];
KeySymsRec	kdKeySyms;


void
KdResetInputMachine (void);
    
#define KD_KEY_COUNT		248

CARD8		kdKeyState[KD_KEY_COUNT/8];

#define IsKeyDown(key) ((kdKeyState[(key) >> 3] >> ((key) & 7)) & 1)

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#define KD_MAX_INPUT_FDS    8

typedef struct _kdInputFd {
    int	    type;
    int	    fd;
    void    (*read) (int fd, void *closure);
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    int	    (*enable) (int fd, void *closure);
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    void    (*disable) (int fd, void *closure);
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    void    *closure;
} KdInputFd;

KdInputFd    	kdInputFds[KD_MAX_INPUT_FDS];
int		kdNumInputFds;
int		kdInputTypeSequence;

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void
KdSigio (int sig)
{
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    int	i;

    for (i = 0; i < kdNumInputFds; i++)
	(*kdInputFds[i].read) (kdInputFds[i].fd, kdInputFds[i].closure);
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}

void
KdBlockSigio (void)
{
    sigset_t	set;
    
    sigemptyset (&set);
    sigaddset (&set, SIGIO);
    sigprocmask (SIG_BLOCK, &set, 0);
}

void
KdUnblockSigio (void)
{
    sigset_t	set;
    
    sigemptyset (&set);
    sigaddset (&set, SIGIO);
    sigprocmask (SIG_UNBLOCK, &set, 0);
}

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#undef VERIFY_SIGIO
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#ifdef VERIFY_SIGIO

void
KdAssertSigioBlocked (char *where)
{
    sigset_t	set, old;

    sigemptyset (&set);
    sigprocmask (SIG_BLOCK, &set, &old);
    if (!sigismember (&old, SIGIO))
	ErrorF ("SIGIO not blocked at %s\n", where);
}

#else

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#define KdAssertSigioBlocked(s)
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#endif

static int  kdnFds;

#ifdef FNONBLOCK
#define NOBLOCK FNONBLOCK
#else
#define NOBLOCK FNDELAY
#endif

void
KdAddFd (int fd)
{
    int	flags;
    struct sigaction	act;
    sigset_t		set;
    
    kdnFds++;
    fcntl (fd, F_SETOWN, getpid());
    flags = fcntl (fd, F_GETFL);
    flags |= FASYNC|NOBLOCK;
    fcntl (fd, F_SETFL, flags);
    AddEnabledDevice (fd);
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    memset (&act, '\0', sizeof act);
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    act.sa_handler = KdSigio;
    sigemptyset (&act.sa_mask);
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    sigaddset (&act.sa_mask, SIGIO);
    sigaddset (&act.sa_mask, SIGALRM);
    sigaddset (&act.sa_mask, SIGVTALRM);
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    sigaction (SIGIO, &act, 0);
    sigemptyset (&set);
    sigprocmask (SIG_SETMASK, &set, 0);
}

void
KdRemoveFd (int fd)
{
    struct sigaction	act;
    int			flags;
    
    kdnFds--;
    RemoveEnabledDevice (fd);
    flags = fcntl (fd, F_GETFL);
    flags &= ~(FASYNC|NOBLOCK);
    fcntl (fd, F_SETFL, flags);
    if (kdnFds == 0)
    {
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	memset (&act, '\0', sizeof act);
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	act.sa_handler = SIG_IGN;
	sigemptyset (&act.sa_mask);
	sigaction (SIGIO, &act, 0);
    }
}

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int
KdAllocInputType (void)
{
    return ++kdInputTypeSequence;
}

Bool
KdRegisterFd (int type, int fd, void (*read) (int fd, void *closure), void *closure)
{
    if (kdNumInputFds == KD_MAX_INPUT_FDS)
	return FALSE;
    kdInputFds[kdNumInputFds].type = type;
    kdInputFds[kdNumInputFds].fd = fd;
    kdInputFds[kdNumInputFds].read = read;
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    kdInputFds[kdNumInputFds].enable = 0;
    kdInputFds[kdNumInputFds].disable = 0;
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    kdInputFds[kdNumInputFds].closure = closure;
    ++kdNumInputFds;
    if (kdInputEnabled)
	KdAddFd (fd);
    return TRUE;
}

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void
KdRegisterFdEnableDisable (int fd, 
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			   int (*enable) (int fd, void *closure),
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			   void (*disable) (int fd, void *closure))
{
    int	i;
    
    for (i = 0; i < kdNumInputFds; i++)
	if (kdInputFds[i].fd == fd)
	{
	    kdInputFds[i].enable = enable;
	    kdInputFds[i].disable = disable;
	    break;
	}
}
			   
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void
KdUnregisterFds (int type, Bool do_close)
{
    int	i;

    for (i = 0; i < kdNumInputFds;)
    {
	if (kdInputFds[i].type == type)
	{
	    if (kdInputEnabled)
		KdRemoveFd (kdInputFds[i].fd);
	    if (do_close)
		close (kdInputFds[i].fd);
	    --kdNumInputFds;
	    for (; i < kdNumInputFds; i++)
		kdInputFds[i] = kdInputFds[i+1];
	}
	else
	    i++;
    }
}

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void
KdDisableInput (void)
{
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    int	i;

    for (i = 0; i < kdNumInputFds; i++)
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    {
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	KdRemoveFd (kdInputFds[i].fd);
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	if (kdInputFds[i].disable)
	    (*kdInputFds[i].disable) (kdInputFds[i].fd, kdInputFds[i].closure);
    }
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    kdInputEnabled = FALSE;
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}

void
KdEnableInput (void)
{
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    xEvent	xE;
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    int	i;
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    kdInputEnabled = TRUE;
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    for (i = 0; i < kdNumInputFds; i++)
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    {
	if (kdInputFds[i].enable)
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	    kdInputFds[i].fd = (*kdInputFds[i].enable) (kdInputFds[i].fd, kdInputFds[i].closure);
	KdAddFd (kdInputFds[i].fd);
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    }
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    /* reset screen saver */
    xE.u.keyButtonPointer.time = GetTimeInMillis ();
    NoticeEventTime (&xE);
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}

static int
KdMouseProc(DeviceIntPtr pDevice, int onoff)
{
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    BYTE	map[KD_MAX_BUTTON];
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    DevicePtr	pDev = (DevicePtr)pDevice;
    int		i;
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    KdMouseInfo	*mi;
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    if (!pDev)
	return BadImplementation;
    
    switch (onoff)
    {
    case DEVICE_INIT:
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	for (i = 1; i <= kdMouseButtonCount; i++)
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	    map[i] = i;
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	InitPointerDeviceStruct(pDev, map, kdMouseButtonCount,
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	    miPointerGetMotionEvents,
	    (PtrCtrlProcPtr)NoopDDA,
	    miPointerGetMotionBufferSize());
	break;
	
    case DEVICE_ON:
	pDev->on = TRUE;
	pKdPointer = pDevice;
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#ifdef TOUCHSCREEN
	if (kdTsFuncs)
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	    (*kdTsFuncs->Init) ();
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#endif
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	if (kdMouseFuncs)
	    (*kdMouseFuncs->Init) ();
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	break;
    case DEVICE_OFF:
    case DEVICE_CLOSE:
	if (pDev->on)
	{
	    pDev->on = FALSE;
	    pKdPointer = 0;
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	    if (kdMouseFuncs)
		(*kdMouseFuncs->Fini) ();
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#ifdef TOUCHSCREEN
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	    if (kdTsFuncs)
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		(*kdTsFuncs->Fini) ();
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#endif
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	}
	break;
    }
    return Success;
}

Bool
LegalModifier(unsigned int key, DevicePtr pDev)
{
    return TRUE;
}

static void
KdBell (int volume, DeviceIntPtr pDev, pointer ctrl, int something)
{
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    if (kdInputEnabled)
	(*kdKeyboardFuncs->Bell) (volume, kdBellPitch, kdBellDuration);
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}


static void
KdSetLeds (void)
{
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    if (kdInputEnabled)
	(*kdKeyboardFuncs->Leds) (kdLeds);
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}

void
KdSetLed (int led, Bool on)
{
    NoteLedState (pKdKeyboard, led, on);
    kdLeds = pKdKeyboard->kbdfeed->ctrl.leds;
    KdSetLeds ();
}

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void
KdSetMouseMatrix (KdMouseMatrix *matrix)
{
    kdMouseMatrix = *matrix;
}

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void
KdComputeMouseMatrix (KdMouseMatrix *m, Rotation randr, int width, int height)
{
    int		    x_dir = 1, y_dir = 1;
    int		    i, j;
    int		    size[2];

    size[0] = width; size[1] = height;
    if (randr & RR_Reflect_X)
	x_dir = -1;
    if (randr & RR_Reflect_Y)
	y_dir = -1;
    switch (randr & (RR_Rotate_All)) {
    case RR_Rotate_0:
	m->matrix[0][0] = x_dir; m->matrix[0][1] = 0;
	m->matrix[1][0] = 0; m->matrix[1][1] = y_dir;
	break;
    case RR_Rotate_90:
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	m->matrix[0][0] = 0; m->matrix[0][1] = -x_dir;
	m->matrix[1][0] = y_dir; m->matrix[1][1] = 0;
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	break;
    case RR_Rotate_180:
	m->matrix[0][0] = -x_dir; m->matrix[0][1] = 0;
	m->matrix[1][0] = 0; m->matrix[1][1] = -y_dir;
	break;
    case RR_Rotate_270:
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	m->matrix[0][0] = 0; m->matrix[0][1] = x_dir;
	m->matrix[1][0] = -y_dir; m->matrix[1][1] = 0;
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	break;
    }
    for (i = 0; i < 2; i++)
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    {
	m->matrix[i][2] = 0;
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	for (j = 0 ; j < 2; j++)
	    if (m->matrix[i][j] < 0)
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		m->matrix[i][2] = size[j] - 1;
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    }
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}

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static void
KdKbdCtrl (DeviceIntPtr pDevice, KeybdCtrl *ctrl)
{
    kdLeds = ctrl->leds;
    kdBellPitch = ctrl->bell_pitch;
    kdBellDuration = ctrl->bell_duration;
    KdSetLeds ();
}

static int
KdKeybdProc(DeviceIntPtr pDevice, int onoff)
{
    Bool        ret;
    DevicePtr   pDev = (DevicePtr)pDevice;

    if (!pDev)
	return BadImplementation;

    switch (onoff)
    {
    case DEVICE_INIT:
	if (pDev != LookupKeyboardDevice())
	{
	    return !Success;
	}
	ret = InitKeyboardDeviceStruct(pDev,
				       &kdKeySyms,
				       kdModMap,
				       KdBell, KdKbdCtrl);
	if (!ret)
	    return BadImplementation;
	break;
    case DEVICE_ON:
	pDev->on = TRUE;
	pKdKeyboard = pDevice;
	if (kdKeyboardFuncs)
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	    (*kdKeyboardFuncs->Init) ();
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	break;
    case DEVICE_OFF:
    case DEVICE_CLOSE:
	pKdKeyboard = 0;
	if (pDev->on)
	{
	    pDev->on = FALSE;
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	    if (kdKeyboardFuncs)
		(*kdKeyboardFuncs->Fini) ();
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	}
	break;
    }
    return Success;
}

extern KeybdCtrl defaultKeyboardControl;

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static void
KdInitAutoRepeats (void)
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{
    int		    key_code;
    unsigned char   mask;
    int		    i;
    unsigned char   *repeats;

    repeats = defaultKeyboardControl.autoRepeats;
    memset (repeats, '\0', 32);
    for (key_code = KD_MIN_KEYCODE; key_code <= KD_MAX_KEYCODE; key_code++)
    {
	if (!kdModMap[key_code])
	{
	    i = key_code >> 3;
	    mask = 1 << (key_code & 7);
	    repeats[i] |= mask;
	}
    }
}

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const KdKeySymModsRec kdKeySymMods[] = {
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  {  XK_Control_L,	ControlMask },
  {  XK_Control_R, ControlMask },
  {  XK_Shift_L,	ShiftMask },
  {  XK_Shift_R,	ShiftMask },
  {  XK_Caps_Lock,	LockMask },
  {  XK_Shift_Lock, LockMask },
  {  XK_Alt_L,	Mod1Mask },
  {  XK_Alt_R,	Mod1Mask },
  {  XK_Meta_L,	Mod1Mask },
  {  XK_Meta_R,	Mod1Mask },
  {  XK_Num_Lock,	Mod2Mask },
  {  XK_Super_L,	Mod3Mask },
  {  XK_Super_R,	Mod3Mask },
  {  XK_Hyper_L,	Mod3Mask },
  {  XK_Hyper_R,	Mod3Mask },
  {  XK_Mode_switch, Mod4Mask },
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#ifdef TOUCHSCREEN
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  /* PDA specific hacks */
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  {  XF86XK_Start, ControlMask },
  {  XK_Menu, ShiftMask },
  {  XK_telephone, Mod1Mask },
  {  XF86XK_AudioRecord, Mod2Mask },
  {  XF86XK_Calendar, Mod3Mask }
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#endif
};

#define NUM_SYM_MODS (sizeof(kdKeySymMods) / sizeof(kdKeySymMods[0]))

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static void
KdInitModMap (void)
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{
    int	    key_code;
    int	    row;
    int	    width;
    KeySym  *syms;
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    int	    i;
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    width = kdKeySyms.mapWidth;
    for (key_code = kdMinKeyCode; key_code <= kdMaxKeyCode; key_code++)
    {
	kdModMap[key_code] = 0;
	syms = kdKeymap + (key_code - kdMinKeyCode) * width;
	for (row = 0; row < width; row++, syms++)
	{
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	    for (i = 0; i < NUM_SYM_MODS; i++) 
	    {
		if (*syms == kdKeySymMods[i].modsym) 
		    kdModMap[key_code] |= kdKeySymMods[i].modbit;
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	    }
	}
    }
}

void
KdInitInput(KdMouseFuncs    *pMouseFuncs,
	    KdKeyboardFuncs *pKeyboardFuncs)
{
    DeviceIntPtr	pKeyboard, pPointer;
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    KdMouseInfo		*mi;
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    if (!kdMouseInfo)
	KdParseMouse (0);
    kdMouseButtonCount = 0;
    for (mi = kdMouseInfo; mi; mi = mi->next)
    {
	if (mi->nbutton > kdMouseButtonCount)
	    kdMouseButtonCount = mi->nbutton;
    }

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    kdMouseFuncs = pMouseFuncs;
    kdKeyboardFuncs = pKeyboardFuncs;
    memset (kdKeyState, '\0', sizeof (kdKeyState));
    if (kdKeyboardFuncs)
	(*kdKeyboardFuncs->Load) ();
    kdMinKeyCode = kdMinScanCode + KD_KEY_OFFSET;
    kdMaxKeyCode = kdMaxScanCode + KD_KEY_OFFSET;
    kdKeySyms.map = kdKeymap;
    kdKeySyms.minKeyCode = kdMinKeyCode;
    kdKeySyms.maxKeyCode = kdMaxKeyCode;
    kdKeySyms.mapWidth = kdKeymapWidth;
    kdLeds = 0;
    kdBellPitch = 1000;
    kdBellDuration = 200;
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    kdInputEnabled = TRUE;
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    KdInitModMap ();
    KdInitAutoRepeats ();
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    KdResetInputMachine ();
    pPointer  = AddInputDevice(KdMouseProc, TRUE);
    pKeyboard = AddInputDevice(KdKeybdProc, TRUE);
    RegisterPointerDevice(pPointer);
    RegisterKeyboardDevice(pKeyboard);
    miRegisterPointerDevice(screenInfo.screens[0], pPointer);
    mieqInit(&pKeyboard->public, &pPointer->public);
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#ifdef XINPUT
    {
	static long zero1, zero2;

	SetExtInputCheck (&zero1, &zero2);
    }
#endif
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}

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#ifdef TOUCHSCREEN
void
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KdInitTouchScreen(KdMouseFuncs *pTsFuncs)
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{
    kdTsFuncs = pTsFuncs;
}
#endif

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/*
 * Middle button emulation state machine
 *
 *  Possible transitions:
 *	Button 1 press	    v1
 *	Button 1 release    ^1
 *	Button 2 press	    v2
 *	Button 2 release    ^2
 *	Button 3 press	    v3
 *	Button 3 release    ^3
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 *	Button other press  vo
 *	Button other release ^o
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 *	Mouse motion	    <>
 *	Keyboard event	    k
 *	timeout		    ...
 *	outside box	    <->
 *
 *  States:
 *	start
 *	button_1_pend
 *	button_1_down
 *	button_2_down
 *	button_3_pend
 *	button_3_down
 *	synthetic_2_down_13
 *	synthetic_2_down_3
 *	synthetic_2_down_1
 *
 *  Transition diagram
 *
 *  start
 *	v1  -> (hold) (settimeout) button_1_pend
 *	^1  -> (deliver) start
 *	v2  -> (deliver) button_2_down
 *	^2  -> (deliever) start
 *	v3  -> (hold) (settimeout) button_3_pend
 *	^3  -> (deliver) start
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 *	vo  -> (deliver) start
 *	^o  -> (deliver) start
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 *	<>  -> (deliver) start
 *	k   -> (deliver) start
 *
 *  button_1_pend	(button 1 is down, timeout pending)
 *	^1  -> (release) (deliver) start
 *	v2  -> (release) (deliver) button_1_down
 *	^2  -> (release) (deliver) button_1_down
 *	v3  -> (cleartimeout) (generate v2) synthetic_2_down_13
 *	^3  -> (release) (deliver) button_1_down
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 *	vo  -> (release) (deliver) button_1_down
 *	^o  -> (release) (deliver) button_1_down
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 *	<-> -> (release) (deliver) button_1_down
 *	<>  -> (deliver) button_1_pend
 *	k   -> (release) (deliver) button_1_down
 *	... -> (release) button_1_down
 *
 *  button_1_down	(button 1 is down)
 *	^1  -> (deliver) start
 *	v2  -> (deliver) button_1_down
 *	^2  -> (deliver) button_1_down
 *	v3  -> (deliver) button_1_down
 *	^3  -> (deliver) button_1_down
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 *	vo  -> (deliver) button_1_down
 *	^o  -> (deliver) button_1_down
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 *	<>  -> (deliver) button_1_down
 *	k   -> (deliver) button_1_down
 *
 *  button_2_down	(button 2 is down)
 *	v1  -> (deliver) button_2_down
 *	^1  -> (deliver) button_2_down
 *	^2  -> (deliver) start
 *	v3  -> (deliver) button_2_down
 *	^3  -> (deliver) button_2_down
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 *	vo  -> (deliver) button_2_down
 *	^o  -> (deliver) button_2_down
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 *	<>  -> (deliver) button_2_down
 *	k   -> (deliver) button_2_down
 *
 *  button_3_pend	(button 3 is down, timeout pending)
 *	v1  -> (generate v2) synthetic_2_down
 *	^1  -> (release) (deliver) button_3_down
 *	v2  -> (release) (deliver) button_3_down
 *	^2  -> (release) (deliver) button_3_down
 *	^3  -> (release) (deliver) start
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 *	vo  -> (release) (deliver) button_3_down
 *	^o  -> (release) (deliver) button_3_down
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 *	<-> -> (release) (deliver) button_3_down
 *	<>  -> (deliver) button_3_pend
 *	k   -> (release) (deliver) button_3_down
 *	... -> (release) button_3_down
 *
 *  button_3_down	(button 3 is down)
 *	v1  -> (deliver) button_3_down
 *	^1  -> (deliver) button_3_down
 *	v2  -> (deliver) button_3_down
 *	^2  -> (deliver) button_3_down
 *	^3  -> (deliver) start
693 694
 *	vo  -> (deliver) button_3_down
 *	^o  -> (deliver) button_3_down
695 696 697 698 699 700 701 702
 *	<>  -> (deliver) button_3_down
 *	k   -> (deliver) button_3_down
 *
 *  synthetic_2_down_13	(button 1 and 3 are down)
 *	^1  -> (generate ^2) synthetic_2_down_3
 *	v2  -> synthetic_2_down_13
 *	^2  -> synthetic_2_down_13
 *	^3  -> (generate ^2) synthetic_2_down_1
703 704
 *	vo  -> (deliver) synthetic_2_down_13
 *	^o  -> (deliver) synthetic_2_down_13
705 706 707 708 709 710 711 712 713
 *	<>  -> (deliver) synthetic_2_down_13
 *	k   -> (deliver) synthetic_2_down_13
 *
 *  synthetic_2_down_3 (button 3 is down)
 *	v1  -> (deliver) synthetic_2_down_3
 *	^1  -> (deliver) synthetic_2_down_3
 *	v2  -> synthetic_2_down_3
 *	^2  -> synthetic_2_down_3
 *	^3  -> start
714 715
 *	vo  -> (deliver) synthetic_2_down_3
 *	^o  -> (deliver) synthetic_2_down_3
716 717 718 719 720 721 722 723 724
 *	<>  -> (deliver) synthetic_2_down_3
 *	k   -> (deliver) synthetic_2_down_3
 *
 *  synthetic_2_down_1 (button 1 is down)
 *	^1  -> start
 *	v2  -> synthetic_2_down_1
 *	^2  -> synthetic_2_down_1
 *	v3  -> (deliver) synthetic_2_down_1
 *	^3  -> (deliver) synthetic_2_down_1
725 726
 *	vo  -> (deliver) synthetic_2_down_1
 *	^o  -> (deliver) synthetic_2_down_1
727 728 729 730 731 732 733 734
 *	<>  -> (deliver) synthetic_2_down_1
 *	k   -> (deliver) synthetic_2_down_1
 */
 
typedef enum _inputClass {
    down_1, up_1,
    down_2, up_2,
    down_3, up_3,
735
    down_o, up_o,
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    motion, outside_box,
    keyboard, timeout,
    num_input_class
} KdInputClass;

typedef enum _inputAction {
    noop,
    hold,
    setto,
    deliver,
    release,
    clearto,
    gen_down_2,
    gen_up_2
} KdInputAction;

#define MAX_ACTIONS 2

typedef struct _inputTransition {
    KdInputAction  actions[MAX_ACTIONS];
756
    KdMouseState   nextState;
757 758 759 760 761 762 763 764 765 766 767
} KdInputTransition;

KdInputTransition  kdInputMachine[num_input_states][num_input_class] = {
    /* start */
    {
	{ { hold, setto },	    button_1_pend },	/* v1 */
	{ { deliver, noop },	    start },		/* ^1 */
	{ { deliver, noop },	    button_2_down },	/* v2 */
	{ { deliver, noop },	    start },		/* ^2 */
	{ { hold, setto },	    button_3_pend },	/* v3 */
	{ { deliver, noop },	    start },		/* ^3 */
768 769
	{ { deliver, noop },	    start },		/* vo */
	{ { deliver, noop },	    start },		/* ^o */
770 771
	{ { deliver, noop },	    start },		/* <> */
	{ { deliver, noop },	    start },		/* <-> */
772
	{ { noop, noop },	    start },		/* k */
773 774 775 776 777 778 779 780 781 782
	{ { noop, noop },	    start },		/* ... */
    },
    /* button_1_pend */
    {
	{ { noop, noop },	    button_1_pend },	/* v1 */
	{ { release, deliver },	    start },		/* ^1 */
	{ { release, deliver },	    button_1_down },	/* v2 */
	{ { release, deliver },	    button_1_down },	/* ^2 */
	{ { clearto, gen_down_2 },  synth_2_down_13 },	/* v3 */
	{ { release, deliver },	    button_1_down },	/* ^3 */
783 784
	{ { release, deliver },	    button_1_down },	/* vo */
	{ { release, deliver },	    button_1_down },	/* ^o */
785 786
	{ { deliver, noop },	    button_1_pend },	/* <> */
	{ { release, deliver },	    button_1_down },	/* <-> */
787
	{ { noop, noop },	    button_1_down },	/* k */
788 789 790 791 792 793 794 795 796 797
	{ { release, noop },	    button_1_down },	/* ... */
    },
    /* button_1_down */
    {
	{ { noop, noop },	    button_1_down },	/* v1 */
	{ { deliver, noop },	    start },		/* ^1 */
	{ { deliver, noop },	    button_1_down },	/* v2 */
	{ { deliver, noop },	    button_1_down },	/* ^2 */
	{ { deliver, noop },	    button_1_down },	/* v3 */
	{ { deliver, noop },	    button_1_down },	/* ^3 */
798 799
	{ { deliver, noop },	    button_1_down },	/* vo */
	{ { deliver, noop },	    button_1_down },	/* ^o */
800 801
	{ { deliver, noop },	    button_1_down },	/* <> */
	{ { deliver, noop },	    button_1_down },	/* <-> */
802
	{ { noop, noop },	    button_1_down },	/* k */
803 804 805 806 807 808 809 810 811 812
	{ { noop, noop },	    button_1_down },	/* ... */
    },
    /* button_2_down */
    {
	{ { deliver, noop },	    button_2_down },	/* v1 */
	{ { deliver, noop },	    button_2_down },	/* ^1 */
	{ { noop, noop },	    button_2_down },	/* v2 */
	{ { deliver, noop },	    start },		/* ^2 */
	{ { deliver, noop },	    button_2_down },	/* v3 */
	{ { deliver, noop },	    button_2_down },	/* ^3 */
813 814
	{ { deliver, noop },	    button_2_down },	/* vo */
	{ { deliver, noop },	    button_2_down },	/* ^o */
815 816
	{ { deliver, noop },	    button_2_down },	/* <> */
	{ { deliver, noop },	    button_2_down },	/* <-> */
817
	{ { noop, noop },	    button_2_down },	/* k */
818 819 820 821 822 823 824 825 826 827
	{ { noop, noop },	    button_2_down },	/* ... */
    },
    /* button_3_pend */
    {
	{ { clearto, gen_down_2 },  synth_2_down_13 },	/* v1 */
	{ { release, deliver },	    button_3_down },	/* ^1 */
	{ { release, deliver },	    button_3_down },	/* v2 */
	{ { release, deliver },	    button_3_down },	/* ^2 */
	{ { release, deliver },	    button_3_down },	/* v3 */
	{ { release, deliver },	    start },		/* ^3 */
828 829
	{ { release, deliver },	    button_3_down },	/* vo */
	{ { release, deliver },	    button_3_down },	/* ^o */
830 831
	{ { deliver, noop },	    button_3_pend },	/* <> */
	{ { release, deliver },	    button_3_down },	/* <-> */
832
	{ { release, noop },	    button_3_down },	/* k */
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	{ { release, noop },	    button_3_down },	/* ... */
    },
    /* button_3_down */
    {
	{ { deliver, noop },	    button_3_down },	/* v1 */
	{ { deliver, noop },	    button_3_down },	/* ^1 */
	{ { deliver, noop },	    button_3_down },	/* v2 */
	{ { deliver, noop },	    button_3_down },	/* ^2 */
	{ { noop, noop },	    button_3_down },	/* v3 */
	{ { deliver, noop },	    start },		/* ^3 */
843 844
	{ { deliver, noop },	    button_3_down },	/* vo */
	{ { deliver, noop },	    button_3_down },	/* ^o */
845 846
	{ { deliver, noop },	    button_3_down },	/* <> */
	{ { deliver, noop },	    button_3_down },	/* <-> */
847
	{ { noop, noop },	    button_3_down },	/* k */
848 849 850 851 852 853 854 855 856 857
	{ { noop, noop },	    button_3_down },	/* ... */
    },
    /* synthetic_2_down_13 */
    {
	{ { noop, noop },	    synth_2_down_13 },	/* v1 */
	{ { gen_up_2, noop },	    synth_2_down_3 },	/* ^1 */
	{ { noop, noop },	    synth_2_down_13 },	/* v2 */
	{ { noop, noop },	    synth_2_down_13 },	/* ^2 */
	{ { noop, noop },	    synth_2_down_13 },	/* v3 */
	{ { gen_up_2, noop },	    synth_2_down_1 },	/* ^3 */
858 859
	{ { deliver, noop },	    synth_2_down_13 },	/* vo */
	{ { deliver, noop },	    synth_2_down_13 },	/* ^o */
860 861
	{ { deliver, noop },	    synth_2_down_13 },	/* <> */
	{ { deliver, noop },	    synth_2_down_13 },	/* <-> */
862
	{ { noop, noop },	    synth_2_down_13 },	/* k */
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	{ { noop, noop },	    synth_2_down_13 },	/* ... */
    },
    /* synthetic_2_down_3 */
    {
	{ { deliver, noop },	    synth_2_down_3 },	/* v1 */
	{ { deliver, noop },	    synth_2_down_3 },	/* ^1 */
	{ { deliver, noop },	    synth_2_down_3 },	/* v2 */
	{ { deliver, noop },	    synth_2_down_3 },	/* ^2 */
	{ { noop, noop },	    synth_2_down_3 },	/* v3 */
	{ { noop, noop },	    start },		/* ^3 */
873 874
	{ { deliver, noop },	    synth_2_down_3 },	/* vo */
	{ { deliver, noop },	    synth_2_down_3 },	/* ^o */
875 876
	{ { deliver, noop },	    synth_2_down_3 },	/* <> */
	{ { deliver, noop },	    synth_2_down_3 },	/* <-> */
877
	{ { noop, noop },	    synth_2_down_3 },	/* k */
878 879 880 881 882 883 884 885 886 887
	{ { noop, noop },	    synth_2_down_3 },	/* ... */
    },
    /* synthetic_2_down_1 */
    {
	{ { noop, noop },	    synth_2_down_1 },	/* v1 */
	{ { noop, noop },	    start },		/* ^1 */
	{ { deliver, noop },	    synth_2_down_1 },	/* v2 */
	{ { deliver, noop },	    synth_2_down_1 },	/* ^2 */
	{ { deliver, noop },	    synth_2_down_1 },	/* v3 */
	{ { deliver, noop },	    synth_2_down_1 },	/* ^3 */
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	{ { deliver, noop },	    synth_2_down_1 },	/* vo */
	{ { deliver, noop },	    synth_2_down_1 },	/* ^o */
890 891
	{ { deliver, noop },	    synth_2_down_1 },	/* <> */
	{ { deliver, noop },	    synth_2_down_1 },	/* <-> */
892
	{ { noop, noop },	    synth_2_down_1 },	/* k */
893 894 895 896 897
	{ { noop, noop },	    synth_2_down_1 },	/* ... */
    },
};

#define EMULATION_WINDOW    10
898
#define EMULATION_TIMEOUT   100
899 900 901 902

#define EventX(e)   ((e)->u.keyButtonPointer.rootX)
#define EventY(e)   ((e)->u.keyButtonPointer.rootY)

903
int
904
KdInsideEmulationWindow (KdMouseInfo *mi, xEvent *ev)
905 906 907
{
    if (ev->u.keyButtonPointer.pad1)
    {
908 909
	mi->emulationDx += EventX(ev);
	mi->emulationDy += EventY(ev);
910 911 912
    }
    else
    {
913 914
	mi->emulationDx = EventX(&mi->heldEvent) - EventX(ev);
	mi->emulationDy = EventY(&mi->heldEvent) - EventY(ev);
915
    }
916 917
    return (abs (mi->emulationDx) < EMULATION_WINDOW &&
	    abs (mi->emulationDy) < EMULATION_WINDOW);
918 919 920
}
				     
KdInputClass
921
KdClassifyInput (KdMouseInfo *mi, xEvent *ev)
922 923 924 925 926 927 928
{
    switch (ev->u.u.type) {
    case ButtonPress:
	switch (ev->u.u.detail) {
	case 1: return down_1;
	case 2: return down_2;
	case 3: return down_3;
929
	default: return down_o;
930 931 932 933 934 935 936
	}
	break;
    case ButtonRelease:
	switch (ev->u.u.detail) {
	case 1: return up_1;
	case 2: return up_2;
	case 3: return up_3;
937
	default: return up_o;
938 939 940
	}
	break;
    case MotionNotify:
941
	if (mi->eventHeld && !KdInsideEmulationWindow(mi, ev))
942 943 944 945 946 947
	    return outside_box;
	else
	    return motion;
    default:
	return keyboard;
    }
948
    return keyboard;
949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012
}

#ifndef NDEBUG
char	*kdStateNames[] = {
    "start",
    "button_1_pend",
    "button_1_down",
    "button_2_down",
    "button_3_pend",
    "button_3_down",
    "synth_2_down_13",
    "synth_2_down_3",
    "synthetic_2_down_1",
    "num_input_states"
};

char	*kdClassNames[] = {
    "down_1", "up_1",
    "down_2", "up_2",
    "down_3", "up_3",
    "motion", "ouside_box",
    "keyboard", "timeout",
    "num_input_class"
};

char *kdActionNames[] = {
    "noop",
    "hold",
    "setto",
    "deliver",
    "release",
    "clearto",
    "gen_down_2",
    "gen_up_2",
};
#endif

static void
KdQueueEvent (xEvent *ev)
{
    KdAssertSigioBlocked ("KdQueueEvent");
    if (ev->u.u.type == MotionNotify)
    {
	if (ev->u.keyButtonPointer.pad1)
	{
	    ev->u.keyButtonPointer.pad1 = 0;
	    miPointerDeltaCursor (ev->u.keyButtonPointer.rootX, 
				  ev->u.keyButtonPointer.rootY, 
				  ev->u.keyButtonPointer.time);
	}
	else
	{
	    miPointerAbsoluteCursor(ev->u.keyButtonPointer.rootX, 
				    ev->u.keyButtonPointer.rootY, 
				    ev->u.keyButtonPointer.time);
	}
    }
    else
    {
	mieqEnqueue (ev);
    }
}

static void
1013
KdRunMouseMachine (KdMouseInfo *mi, KdInputClass c, xEvent *ev)
1014 1015 1016 1017
{
    KdInputTransition	*t;
    int			a;

1018
    t = &kdInputMachine[mi->mouseState][c];
1019 1020 1021 1022 1023 1024
    for (a = 0; a < MAX_ACTIONS; a++)
    {
	switch (t->actions[a]) {
	case noop:
	    break;
	case hold:
1025 1026 1027 1028
	    mi->eventHeld = TRUE;
	    mi->emulationDx = 0;
	    mi->emulationDy = 0;
	    mi->heldEvent = *ev;
1029 1030
	    break;
	case setto:
1031 1032
	    mi->emulationTimeout = GetTimeInMillis () + EMULATION_TIMEOUT;
	    mi->timeoutPending = TRUE;
1033 1034 1035 1036 1037
	    break;
	case deliver:
	    KdQueueEvent (ev);
	    break;
	case release:
1038 1039 1040
	    mi->eventHeld = FALSE;
	    mi->timeoutPending = FALSE;
	    KdQueueEvent (&mi->heldEvent);
1041 1042
	    break;
	case clearto:
1043
	    mi->timeoutPending = FALSE;
1044 1045 1046
	    break;
	case gen_down_2:
	    ev->u.u.detail = 2;
1047
	    mi->eventHeld = FALSE;
1048 1049 1050 1051 1052 1053 1054 1055
	    KdQueueEvent (ev);
	    break;
	case gen_up_2:
	    ev->u.u.detail = 2;
	    KdQueueEvent (ev);
	    break;
	}
    }
1056
    mi->mouseState = t->nextState;
1057 1058 1059 1060 1061
}

void
KdResetInputMachine (void)
{
1062 1063 1064 1065 1066 1067 1068
    KdMouseInfo	*mi;

    for (mi = kdMouseInfo; mi; mi = mi->next)
    {
	mi->mouseState = start;
	mi->eventHeld = FALSE;
    }
1069 1070 1071
}

void
1072
KdHandleMouseEvent (KdMouseInfo *mi, xEvent *ev)
1073
{
1074 1075
    if (mi->emulateMiddleButton)
	KdRunMouseMachine (mi, KdClassifyInput (mi, ev), ev);
1076 1077 1078 1079 1080
    else
	KdQueueEvent (ev);
}

void
1081
KdReceiveTimeout (KdMouseInfo *mi)
1082
{
1083
    KdRunMouseMachine (mi, timeout, 0);
1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112
}

#define KILL_SEQUENCE ((1L << KK_CONTROL)|(1L << KK_ALT)|(1L << KK_F8)|(1L << KK_F10))
#define SPECIAL_SEQUENCE ((1L << KK_CONTROL) | (1L << KK_ALT))
#define SETKILLKEY(b) (KdSpecialKeys |= (1L << (b)))
#define CLEARKILLKEY(b) (KdSpecialKeys &= ~(1L << (b)))
#define KEYMAP	    (pKdKeyboard->key->curKeySyms)
#define KEYCOL1(k) (KEYMAP.map[((k)-kdMinKeyCode)*KEYMAP.mapWidth])

CARD32	KdSpecialKeys = 0;

extern char dispatchException;

/*
 * kdCheckTermination
 *
 * This function checks for the key sequence that terminates the server.  When
 * detected, it sets the dispatchException flag and returns.  The key sequence
 * is:
 *	Control-Alt
 * It's assumed that the server will be waken up by the caller when this
 * function returns.
 */

extern int nClients;

void
KdCheckSpecialKeys(xEvent *xE)
{
1113
    KeySym	sym = KEYCOL1(xE->u.u.detail);
1114 1115 1116 1117 1118 1119 1120 1121
    
    if (!pKdKeyboard) return;

    /*
     * Ignore key releases
     */
    
    if (xE->u.u.type == KeyRelease) return;
1122 1123 1124 1125 1126

#ifdef XIPAQ
    /* 
     * Check for buttons 1, 2 and 3 on the iPAQ
     */
1127 1128
    if (sym == XK_Pointer_Button1 && kdMouseInfo) {
	KdEnqueueMouseEvent(kdMouseInfo, KD_MOUSE_DELTA | KD_BUTTON_1, 0, 0);
1129 1130
	return;
    }
1131 1132
    if (sym == XK_Pointer_Button2 && kdMouseInfo) {
	KdEnqueueMouseEvent(kdMouseInfo, KD_MOUSE_DELTA | KD_BUTTON_2, 0, 0);
1133 1134
	return;
    }
1135 1136
    if (sym == XK_Pointer_Button3 && kdMouseInfo) {
	KdEnqueueMouseEvent(kdMouseInfo, KD_MOUSE_DELTA | KD_BUTTON_3, 0, 0);
1137 1138 1139 1140
	return;
    }
#endif

1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185
    /*
     * Check for control/alt pressed
     */
    if ((pKdKeyboard->key->state & (ControlMask|Mod1Mask)) !=
	(ControlMask|Mod1Mask))
	return;
    
    
    /*
     * Let OS function see keysym first
     */
    
    if (kdOsFuncs->SpecialKey)
	if ((*kdOsFuncs->SpecialKey) (sym))
	    return;

    /*
     * Now check for backspace or delete; these signal the
     * X server to terminate
     */
    switch (sym) {
    case XK_BackSpace:
    case XK_Delete:
    case XK_KP_Delete:
	/* 
	 * Set the dispatch exception flag so the server will terminate the
	 * next time through the dispatch loop.
	 */
	dispatchException |= DE_TERMINATE;
	break;
    }
}

/*
 * kdEnqueueKeyboardEvent
 *
 * This function converts hardware keyboard event information into an X event
 * and enqueues it using MI.  It wakes up the server before returning so that
 * the event will be processed normally.
 *
 */

void
KdHandleKeyboardEvent (xEvent *ev)
{
1186 1187 1188 1189
    int		key = ev->u.u.detail;
    int		byte;
    CARD8	bit;
    KdMouseInfo	*mi;
1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200
    
    byte = key >> 3;
    bit = 1 << (key & 7);
    switch (ev->u.u.type) {
    case KeyPress:
	kdKeyState[byte] |= bit;
	break;
    case KeyRelease:
	kdKeyState[byte] &= ~bit;
	break;
    }
1201 1202 1203
    for (mi = kdMouseInfo; mi; mi = mi->next)
	KdRunMouseMachine (mi, keyboard, 0);
    KdQueueEvent (ev);
1204 1205 1206 1207 1208 1209 1210 1211
}

void
KdReleaseAllKeys (void)
{
    xEvent  xE;
    int	    key;

1212
    KdBlockSigio ();
1213 1214 1215 1216 1217 1218 1219 1220
    for (key = 0; key < KD_KEY_COUNT; key++)
	if (IsKeyDown(key))
	{
	    xE.u.keyButtonPointer.time = GetTimeInMillis();
	    xE.u.u.type = KeyRelease;
	    xE.u.u.detail = key;
	    KdHandleKeyboardEvent (&xE);
	}
1221
    KdUnblockSigio ();
1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297
}

void
KdCheckLock (void)
{
    KeyClassPtr	    keyc = pKdKeyboard->key;
    Bool	    isSet, shouldBeSet;

    if (kdKeyboardFuncs->LockLed)
    {
	isSet = (kdLeds & (1 << (kdKeyboardFuncs->LockLed-1))) != 0;
	shouldBeSet = (keyc->state & LockMask) != 0;
	if (isSet != shouldBeSet)
	{
	    KdSetLed (kdKeyboardFuncs->LockLed, shouldBeSet);
	}
    }
}

void
KdEnqueueKeyboardEvent(unsigned char	scan_code,
		       unsigned char	is_up)
{
    unsigned char   key_code;
    xEvent	    xE;
    int		    e;
    KeyClassPtr	    keyc;

    if (!pKdKeyboard)
	return;
    keyc = pKdKeyboard->key;

    xE.u.keyButtonPointer.time = GetTimeInMillis();

    if (kdMinScanCode <= scan_code && scan_code <= kdMaxScanCode)
    {
	key_code = scan_code + KD_MIN_KEYCODE - kdMinScanCode;
	
	/*
	 * Set up this event -- the type may be modified below
	 */
	if (is_up)
	    xE.u.u.type = KeyRelease;
	else
	    xE.u.u.type = KeyPress;
	xE.u.u.detail = key_code;
	
	switch (KEYCOL1(key_code)) 
	{
	case XK_Num_Lock:
	case XK_Scroll_Lock:
	case XK_Shift_Lock:
	case XK_Caps_Lock:
	    if (xE.u.u.type == KeyRelease)
		return;
	    if (IsKeyDown (key_code))
		xE.u.u.type = KeyRelease;
	    else
		xE.u.u.type = KeyPress;
	}
	
	/*
	 * Check pressed keys which are already down
	 */
	if (IsKeyDown (key_code) && xE.u.u.type == KeyPress)
	{
	    KeybdCtrl	*ctrl = &pKdKeyboard->kbdfeed->ctrl;
	    
	    /*
	     * Check auto repeat
	     */
	    if (!ctrl->autoRepeat || keyc->modifierMap[key_code] ||
		!(ctrl->autoRepeats[key_code >> 3] & (1 << (key_code & 7))))
	    {
		return;
	    }
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	    /*
	     * X delivers press/release even for autorepeat
	     */
	    xE.u.u.type = KeyRelease;
	    KdHandleKeyboardEvent (&xE);
	    xE.u.u.type = KeyPress;
1304
	}
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	/*
	 * Check released keys which are already up
	 */
	else if (!IsKeyDown (key_code) && xE.u.u.type == KeyRelease)
1309
	{
1310
	    return;
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	}
	KdCheckSpecialKeys (&xE);
	KdHandleKeyboardEvent (&xE);
    }
}

1317
#define SetButton(mi, b, v, s) \
1318
{\
1319
    xE.u.u.detail = mi->map[b]; \
1320
    xE.u.u.type = v; \
1321
    KdHandleMouseEvent (mi, &xE); \
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}

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#define Press(mi, b)         SetButton(mi, b, ButtonPress, "Down")
#define Release(mi, b)       SetButton(mi, b, ButtonRelease, "Up")
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/*
 * kdEnqueueMouseEvent
 *
 * This function converts hardware mouse event information into X event
 * information.  A mouse movement event is passed off to MI to generate
 * a MotionNotify event, if appropriate.  Button events are created and
 * passed off to MI for enqueueing.
 */

static int
KdMouseAccelerate (DeviceIntPtr	device, int delta)
{
    PtrCtrl *pCtrl = &device->ptrfeed->ctrl;

    if (abs(delta) > pCtrl->threshold)
	delta = (delta * pCtrl->num) / pCtrl->den;
    return delta;
}

void
1347
KdEnqueueMouseEvent(KdMouseInfo *mi, unsigned long flags, int rx, int ry)
1348
{
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    CARD32	    ms;
    xEvent	    xE;
    unsigned char   buttons;
    int		    x, y;
    int		    (*matrix)[3] = kdMouseMatrix.matrix;
    unsigned long   button;
    int		    n;
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    if (!pKdPointer)
	return;
    
    ms = GetTimeInMillis();
    
    if (flags & KD_MOUSE_DELTA)
    {
1364 1365
	x = matrix[0][0] * rx + matrix[0][1] * ry;
	y = matrix[1][0] * rx + matrix[1][1] * ry;
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	x = KdMouseAccelerate (pKdPointer, x);
	y = KdMouseAccelerate (pKdPointer, y);
	xE.u.keyButtonPointer.pad1 = 1;
    }
    else
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    {
	x = matrix[0][0] * rx + matrix[0][1] * ry + matrix[0][2];
	y = matrix[1][0] * rx + matrix[1][1] * ry + matrix[1][2];