svn merge ^/branches/released

1 files changed, 740 insertions, 747 deletions

diff --git a/xorg-server/hw/xfree86/common/xf86Events.c b/xorg-server/hw/xfree86/common/xf86Events.c
index 8cd765a1c..ee4835233 100644
--- a/xorg-server/hw/xfree86/common/xf86Events.c
+++ b/xorg-server/hw/xfree86/common/xf86Events.c
@@ -1,747 +1,740 @@
-/*
- * Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany.
- *
- * 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 Thomas Roell not be used in
- * advertising or publicity pertaining to distribution of the software without
- * specific, written prior permission.  Thomas Roell makes no representations
- * about the suitability of this software for any purpose.  It is provided
- * "as is" without express or implied warranty.
- *
- * THOMAS ROELL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL THOMAS ROELL 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.
- *
- */
-/*
- * Copyright (c) 1994-2003 by The XFree86 Project, Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- *
- * Except as contained in this notice, the name of the copyright holder(s)
- * and author(s) shall not be used in advertising or otherwise to promote
- * the sale, use or other dealings in this Software without prior written
- * authorization from the copyright holder(s) and author(s).
- */
-
-/* [JCH-96/01/21] Extended std reverse map to four buttons. */
-
-#ifdef HAVE_XORG_CONFIG_H
-#include <xorg-config.h>
-#endif
-
-#include <X11/X.h>
-#include <X11/Xpoll.h>
-#include <X11/Xproto.h>
-#include "misc.h"
-#include "compiler.h"
-#include "xf86.h"
-#include "xf86Priv.h"
-#define XF86_OS_PRIVS
-#include "xf86_OSlib.h"
-#include <X11/keysym.h>
-
-#ifdef XFreeXDGA
-#include "dgaproc.h"
-#endif
-
-#include <X11/extensions/XI.h>
-#include <X11/extensions/XIproto.h>
-#include "inputstr.h"
-#include "xf86Xinput.h"
-
-#include "mi.h"
-#include "mipointer.h"
-
-#include "xkbsrv.h"
-#include "xkbstr.h"
-
-#ifdef DPMSExtension
-#include <X11/extensions/dpmsconst.h>
-#include "dpmsproc.h"
-#endif
-
-/*
- * This is a toggling variable:
- *  FALSE = No VT switching keys have been pressed last time around
- *  TRUE  = Possible VT switch Pending
- * (DWH - 12/2/93)
- *
- * This has been generalised to work with Linux and *BSD+syscons (DHD)
- */
-
-Bool VTSwitchEnabled = TRUE;		/* Allows run-time disabling for
-                                         *BSD and for avoiding VT
-                                         switches when using the DRI
-                                         automatic full screen mode.*/
-
-extern fd_set EnabledDevices;
-
-#ifdef XF86PM
-extern void (*xf86OSPMClose)(void);
-#endif
-
-static void xf86VTSwitch(void);
-
-/*
- * Allow arbitrary drivers or other XFree86 code to register with our main
- * Wakeup handler.
- */
-typedef struct x_IHRec {
-    int			fd;
-    InputHandlerProc	ihproc;
-    pointer		data;
-    Bool		enabled;
-    struct x_IHRec *	next;
-} IHRec, *IHPtr;
-
-static IHPtr InputHandlers = NULL;
-
-
-Bool
-LegalModifier(unsigned int key, DeviceIntPtr pDev)
-{
-    return TRUE;
-}
-
-/*
- * TimeSinceLastInputEvent --
- *      Function used for screensaver purposes by the os module. Returns the
- *      time in milliseconds since there last was any input.
- */
-int
-TimeSinceLastInputEvent(void)
-{
-  if (xf86Info.lastEventTime == 0) {
-    xf86Info.lastEventTime = GetTimeInMillis();
-  }
-  return GetTimeInMillis() - xf86Info.lastEventTime;
-}
-
-/*
- * SetTimeSinceLastInputEvent --
- *      Set the lastEventTime to now.
- */
-void
-SetTimeSinceLastInputEvent(void)
-{
-  xf86Info.lastEventTime = GetTimeInMillis();
-}
-
-/*
- * ProcessInputEvents --
- *      Retrieve all waiting input events and pass them to DIX in their
- *      correct chronological order. Only reads from the system pointer
- *      and keyboard.
- */
-void
-ProcessInputEvents (void)
-{
-  int x, y;
-
-  mieqProcessInputEvents();
-
-  /* FIXME: This is a problem if we have multiple pointers */
-  miPointerGetPosition(inputInfo.pointer, &x, &y);
-  xf86SetViewport(xf86Info.currentScreen, x, y);
-}
-
-/*
- * Handle keyboard events that cause some kind of "action"
- * (i.e., server termination, video mode changes, VT switches, etc.)
- */
-void
-xf86ProcessActionEvent(ActionEvent action, void *arg)
-{
-    DebugF("ProcessActionEvent(%d,%x)\n", (int) action, arg);
-    switch (action) {
-    case ACTION_TERMINATE:
-	if (!xf86Info.dontZap) {
-#ifdef XFreeXDGA
-	    DGAShutdown();
-#endif
-	    GiveUp(0);
-	}
-	break;
-    case ACTION_NEXT_MODE:
-	if (!xf86Info.dontZoom)
-	    xf86ZoomViewport(xf86Info.currentScreen,  1);
-	break;
-    case ACTION_PREV_MODE:
-	if (!xf86Info.dontZoom)
-	    xf86ZoomViewport(xf86Info.currentScreen, -1);
-	break;
-#if defined(VT_ACTIVATE)
-    case ACTION_SWITCHSCREEN:
-	if (VTSwitchEnabled && !xf86Info.dontVTSwitch && arg) {
-	    int vtno = *((int *) arg);
-#if defined(__SCO__) || defined(__UNIXWARE__)
-	    vtno--;
-#endif
-#if defined(sun)
-	    if (vtno == xf86Info.vtno)
-		break;
-
-	    xf86Info.vtRequestsPending = TRUE;
-	    xf86Info.vtPendingNum = vtno;
-#else
-	    if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, vtno) < 0)
-		ErrorF("Failed to switch consoles (%s)\n", strerror(errno));
-#endif
-	}
-	break;
-    case ACTION_SWITCHSCREEN_NEXT:
-	if (VTSwitchEnabled && !xf86Info.dontVTSwitch) {
-#if defined(__SCO__) || defined(__UNIXWARE__)
-	    if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, xf86Info.vtno) < 0)
-#else
-	    if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, xf86Info.vtno + 1) < 0)
-#endif
-#if defined (__SCO__) || (defined(sun) && defined (__i386__) && defined (SVR4)) || defined(__UNIXWARE__)
-		if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, 0) < 0)
-#else
-		if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, 1) < 0)
-#endif
-		    ErrorF("Failed to switch consoles (%s)\n", strerror(errno));
-	}
-	break;
-    case ACTION_SWITCHSCREEN_PREV:
-	if (VTSwitchEnabled && !xf86Info.dontVTSwitch && xf86Info.vtno > 0) {
-	    if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, xf86Info.vtno - 1) < 0)
-		ErrorF("Failed to switch consoles (%s)\n", strerror(errno));
-	}
-	break;
-#endif
-    default:
-	break;
-    }
-}
-
-/*
- * xf86Wakeup --
- *      Os wakeup handler.
- */
-
-/* ARGSUSED */
-void
-xf86Wakeup(pointer blockData, int err, pointer pReadmask)
-{
-    fd_set* LastSelectMask = (fd_set*)pReadmask;
-    fd_set devicesWithInput;
-    InputInfoPtr pInfo;
-
-    if (err >= 0) {
-
-	XFD_ANDSET(&devicesWithInput, LastSelectMask, &EnabledDevices);
-	if (XFD_ANYSET(&devicesWithInput)) {
-	    pInfo = xf86InputDevs;
-	    while (pInfo) {
-		if (pInfo->read_input && pInfo->fd >= 0 &&
-		    (FD_ISSET(pInfo->fd, &devicesWithInput) != 0)) {
-		    int sigstate = xf86BlockSIGIO();
-
-		    /*
-		     * Remove the descriptior from the set because more than one
-		     * device may share the same file descriptor.
-		     */
-		    FD_CLR(pInfo->fd, &devicesWithInput);
-
-		    pInfo->read_input(pInfo);
-		    xf86UnblockSIGIO(sigstate);
-		}
-		pInfo = pInfo->next;
-	    }
-	}
-    }
-
-    if (err >= 0) { /* we don't want the handlers called if select() */
-	IHPtr ih;   /* returned with an error condition, do we?      */
-	
-	for (ih = InputHandlers; ih; ih = ih->next) {
-	    if (ih->enabled && ih->fd >= 0 && ih->ihproc &&
-		(FD_ISSET(ih->fd, ((fd_set *)pReadmask)) != 0)) {
-		ih->ihproc(ih->fd, ih->data);
-	    }
-	}
-    }
-
-    if (xf86VTSwitchPending()) xf86VTSwitch();
-}
-
-
-/*
- * xf86SigioReadInput --
- *    signal handler for the SIGIO signal.
- */
-static void
-xf86SigioReadInput(int fd, void *closure)
-{
-    int errno_save = errno;
-    InputInfoPtr pInfo = closure;
-
-    pInfo->read_input(pInfo);
-
-    errno = errno_save;
-}
-
-/*
- * xf86AddEnabledDevice --
- *
- */
-void
-xf86AddEnabledDevice(InputInfoPtr pInfo)
-{
-    if (!xf86InstallSIGIOHandler (pInfo->fd, xf86SigioReadInput, pInfo)) {
-	AddEnabledDevice(pInfo->fd);
-    }
-}
-
-/*
- * xf86RemoveEnabledDevice --
- *
- */
-void
-xf86RemoveEnabledDevice(InputInfoPtr pInfo)
-{
-    if (!xf86RemoveSIGIOHandler (pInfo->fd)) {
-	RemoveEnabledDevice(pInfo->fd);
-    }
-}
-
-static int *xf86SignalIntercept = NULL;
-
-void
-xf86InterceptSignals(int *signo)
-{
-    if ((xf86SignalIntercept = signo))
-	*signo = -1;
-}
-
-static void (*xf86SigIllHandler)(void) = NULL;
-
-void
-xf86InterceptSigIll(void (*sigillhandler)(void))
-{
-    xf86SigIllHandler = sigillhandler;
-}
-
-/*
- * xf86SigWrapper --
- *    Catch unexpected signals and exit or continue cleanly.
- */
-int
-xf86SigWrapper(int signo)
-{
-  if ((signo == SIGILL) && xf86SigIllHandler) {
-    (*xf86SigIllHandler)();
-    return 0; /* continue */
-  }
-
-  if (xf86SignalIntercept && (*xf86SignalIntercept < 0)) {
-    *xf86SignalIntercept = signo;
-    return 0; /* continue */
-  }
-
-  xf86Info.caughtSignal = TRUE;
-  return 1; /* abort */
-}
-
-/*
- * xf86PrintBacktrace --
- *    Print a stack backtrace for debugging purposes.
- */
-void
-xf86PrintBacktrace(void)
-{
-    xorg_backtrace();
-}
-
-#define KeyPressed(k) (keyc->postdown[k >> 3] & (1 << (k & 7)))
-
-static void
-xf86ReleaseKeys(DeviceIntPtr pDev)
-{
-    KeyClassPtr keyc;
-    int i, j, nevents, sigstate;
-
-    if (!pDev || !pDev->key)
-        return;
-
-    keyc = pDev->key;
-
-    /*
-     * Hmm... here is the biggest hack of every time !
-     * It may be possible that a switch-vt procedure has finished BEFORE
-     * you released all keys neccessary to do this. That peculiar behavior
-     * can fool the X-server pretty much, cause it assumes that some keys
-     * were not released. TWM may stuck alsmost completly....
-     * OK, what we are doing here is after returning from the vt-switch
-     * exeplicitely unrelease all keyboard keys before the input-devices
-     * are reenabled.
-     */
-
-    for (i = keyc->xkbInfo->desc->min_key_code;
-         i < keyc->xkbInfo->desc->max_key_code;
-         i++) {
-        if (KeyPressed(i)) {
-            sigstate = xf86BlockSIGIO ();
-            nevents = GetKeyboardEvents(xf86Events, pDev, KeyRelease, i);
-            for (j = 0; j < nevents; j++)
-                mieqEnqueue(pDev, (InternalEvent*)(xf86Events + j)->event);
-            xf86UnblockSIGIO(sigstate);
-        }
-    }
-}
-
-/*
- * xf86VTSwitch --
- *      Handle requests for switching the vt.
- */
-static void
-xf86VTSwitch(void)
-{
-  int i, prevSIGIO;
-  InputInfoPtr pInfo;
-  IHPtr ih;
-
-  DebugF("xf86VTSwitch()\n");
-
-#ifdef XFreeXDGA
-  if(!DGAVTSwitch())
-	return;
-#endif
-
-  /*
-   * Since all screens are currently all in the same state it is sufficient
-   * check the first.  This might change in future.
-   */
-  if (xf86Screens[0]->vtSema) {
-
-    DebugF("xf86VTSwitch: Leaving, xf86Exiting is %s\n",
-	   BOOLTOSTRING((dispatchException & DE_TERMINATE) ? TRUE : FALSE));
-#ifdef DPMSExtension
-    if (DPMSPowerLevel != DPMSModeOn)
-	DPMSSet(serverClient, DPMSModeOn);
-#endif
-    for (i = 0; i < xf86NumScreens; i++) {
-      if (!(dispatchException & DE_TERMINATE))
-	if (xf86Screens[i]->EnableDisableFBAccess)
-	  (*xf86Screens[i]->EnableDisableFBAccess) (i, FALSE);
-    }
-
-    /*
-     * Keep the order: Disable Device > LeaveVT
-     *                        EnterVT > EnableDevice
-     */
-    for (ih = InputHandlers; ih; ih = ih->next)
-      xf86DisableInputHandler(ih);
-    for (pInfo = xf86InputDevs; pInfo; pInfo = pInfo->next) {
-      if (pInfo->dev) {
-          xf86ReleaseKeys(pInfo->dev);
-          ProcessInputEvents();
-          DisableDevice(pInfo->dev, TRUE);
-      }
-    }
-    xf86EnterServerState(SETUP);
-    for (i = 0; i < xf86NumScreens; i++)
-	xf86Screens[i]->LeaveVT(i, 0);
-
-    xf86AccessLeave();      /* We need this here, otherwise */
-
-    if (!xf86VTSwitchAway()) {
-      /*
-       * switch failed
-       */
-
-      DebugF("xf86VTSwitch: Leave failed\n");
-      prevSIGIO = xf86BlockSIGIO();
-      xf86AccessEnter();
-      xf86EnterServerState(SETUP);
-      for (i = 0; i < xf86NumScreens; i++) {
-	if (!xf86Screens[i]->EnterVT(i, 0))
-	  FatalError("EnterVT failed for screen %d\n", i);
-      }
-      xf86EnterServerState(OPERATING);
-      if (!(dispatchException & DE_TERMINATE)) {
-	for (i = 0; i < xf86NumScreens; i++) {
-	  if (xf86Screens[i]->EnableDisableFBAccess)
-	    (*xf86Screens[i]->EnableDisableFBAccess) (i, TRUE);
-	}
-      }
-      dixSaveScreens(serverClient, SCREEN_SAVER_FORCER, ScreenSaverReset);
-
-      pInfo = xf86InputDevs;
-      while (pInfo) {
-        if (pInfo->dev)
-            EnableDevice(pInfo->dev, TRUE);
-	pInfo = pInfo->next;
-      }
-      for (ih = InputHandlers; ih; ih = ih->next)
-        xf86EnableInputHandler(ih);
-
-      xf86UnblockSIGIO(prevSIGIO);
-
-    } else {
-#ifdef XF86PM
-	  if (xf86OSPMClose)
-	      xf86OSPMClose();
-	  xf86OSPMClose = NULL;
-#endif
-
-	for (i = 0; i < xf86NumScreens; i++) {
- 	    /*
- 	     * zero all access functions to
- 	     * trap calls when switched away.
- 	     */
-	    xf86Screens[i]->vtSema = FALSE;
-	}
-	if (xorgHWAccess)
-	    xf86DisableIO();
-    }
-  } else {
-
-    DebugF("xf86VTSwitch: Entering\n");
-    if (!xf86VTSwitchTo()) return;
-
-    prevSIGIO = xf86BlockSIGIO();
-#ifdef XF86PM
-    xf86OSPMClose = xf86OSPMOpen();
-#endif
-
-    if (xorgHWAccess)
-	xf86EnableIO();
-    xf86AccessEnter();
-    xf86EnterServerState(SETUP);
-    for (i = 0; i < xf86NumScreens; i++) {
-      xf86Screens[i]->vtSema = TRUE;
-      if (!xf86Screens[i]->EnterVT(i, 0))
-	  FatalError("EnterVT failed for screen %d\n", i);
-    }
-    xf86EnterServerState(OPERATING);
-    for (i = 0; i < xf86NumScreens; i++) {
-      if (xf86Screens[i]->EnableDisableFBAccess)
-	(*xf86Screens[i]->EnableDisableFBAccess)(i, TRUE);
-    }
-
-    /* Turn screen saver off when switching back */
-    dixSaveScreens(serverClient, SCREEN_SAVER_FORCER, ScreenSaverReset);
-
-    pInfo = xf86InputDevs;
-    while (pInfo) {
-      if (pInfo->dev)
-          EnableDevice(pInfo->dev, TRUE);
-      pInfo = pInfo->next;
-    }
-
-    for (ih = InputHandlers; ih; ih = ih->next)
-      xf86EnableInputHandler(ih);
-
-    xf86UnblockSIGIO(prevSIGIO);
-  }
-}
-
-
-/* Input handler registration */
-
-static pointer
-addInputHandler(int fd, InputHandlerProc proc, pointer data)
-{
-    IHPtr ih;
-
-    if (fd < 0 || !proc)
-	return NULL;
-
-    ih = xcalloc(sizeof(*ih), 1);
-    if (!ih)
-	return NULL;
-
-    ih->fd = fd;
-    ih->ihproc = proc;
-    ih->data = data;
-    ih->enabled = TRUE;
-
-    ih->next = InputHandlers;
-    InputHandlers = ih;
-
-    return ih;
-}
-
-pointer
-xf86AddInputHandler(int fd, InputHandlerProc proc, pointer data)
-{
-    IHPtr ih = addInputHandler(fd, proc, data);
-
-    if (ih)
-        AddEnabledDevice(fd);
-    return ih;
-}
-
-pointer
-xf86AddGeneralHandler(int fd, InputHandlerProc proc, pointer data)
-{
-    IHPtr ih = addInputHandler(fd, proc, data);
-
-    if (ih)
-        AddGeneralSocket(fd);
-    return ih;
-}
-
-static void
-removeInputHandler(IHPtr ih)
-{
-    IHPtr p;
-
-    if (ih == InputHandlers)
-	InputHandlers = ih->next;
-    else {
-	p = InputHandlers;
-	while (p && p->next != ih)
-	    p = p->next;
-	if (ih)
-	    p->next = ih->next;
-    }
-    xfree(ih);
-}
-
-int
-xf86RemoveInputHandler(pointer handler)
-{
-    IHPtr ih;
-    int fd;
-
-    if (!handler)
-	return -1;
-
-    ih = handler;
-    fd = ih->fd;
-
-    if (ih->fd >= 0)
-	RemoveEnabledDevice(ih->fd);
-    removeInputHandler(ih);
-
-    return fd;
-}
-
-int
-xf86RemoveGeneralHandler(pointer handler)
-{
-    IHPtr ih;
-    int fd;
-
-    if (!handler)
-	return -1;
-
-    ih = handler;
-    fd = ih->fd;
-
-    if (ih->fd >= 0)
-	RemoveGeneralSocket(ih->fd);
-    removeInputHandler(ih);
-
-    return fd;
-}
-
-void
-xf86DisableInputHandler(pointer handler)
-{
-    IHPtr ih;
-
-    if (!handler)
-	return;
-
-    ih = handler;
-    ih->enabled = FALSE;
-    if (ih->fd >= 0)
-	RemoveEnabledDevice(ih->fd);
-}
-
-void
-xf86DisableGeneralHandler(pointer handler)
-{
-    IHPtr ih;
-
-    if (!handler)
-	return;
-
-    ih = handler;
-    ih->enabled = FALSE;
-    if (ih->fd >= 0)
-	RemoveGeneralSocket(ih->fd);
-}
-
-void
-xf86EnableInputHandler(pointer handler)
-{
-    IHPtr ih;
-
-    if (!handler)
-	return;
-
-    ih = handler;
-    ih->enabled = TRUE;
-    if (ih->fd >= 0)
-	AddEnabledDevice(ih->fd);
-}
-
-void
-xf86EnableGeneralHandler(pointer handler)
-{
-    IHPtr ih;
-
-    if (!handler)
-	return;
-
-    ih = handler;
-    ih->enabled = TRUE;
-    if (ih->fd >= 0)
-	AddGeneralSocket(ih->fd);
-}
-
-/*
- * As used currently by the DRI, the return value is ignored.
- */
-Bool
-xf86EnableVTSwitch(Bool new)
-{
-    static Bool def = TRUE;
-    Bool old;
-
-    old = VTSwitchEnabled;
-    if (!new) {
-	/* Disable VT switching */
-	def = VTSwitchEnabled;
-	VTSwitchEnabled = FALSE;
-    } else {
-	/* Restore VT switching to default */
-	VTSwitchEnabled = def;
-    }
-    return old;
-}
-
-void
-DDXRingBell(int volume, int pitch, int duration) {
-    xf86OSRingBell(volume, pitch, duration);
-}
+/*

+ * Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany.

+ *

+ * 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 Thomas Roell not be used in

+ * advertising or publicity pertaining to distribution of the software without

+ * specific, written prior permission.  Thomas Roell makes no representations

+ * about the suitability of this software for any purpose.  It is provided

+ * "as is" without express or implied warranty.

+ *

+ * THOMAS ROELL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,

+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO

+ * EVENT SHALL THOMAS ROELL 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.

+ *

+ */

+/*

+ * Copyright (c) 1994-2003 by The XFree86 Project, Inc.

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice and this permission notice shall be included in

+ * all copies or substantial portions of the Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR

+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,

+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

+ * OTHER DEALINGS IN THE SOFTWARE.

+ *

+ * Except as contained in this notice, the name of the copyright holder(s)

+ * and author(s) shall not be used in advertising or otherwise to promote

+ * the sale, use or other dealings in this Software without prior written

+ * authorization from the copyright holder(s) and author(s).

+ */

+

+/* [JCH-96/01/21] Extended std reverse map to four buttons. */

+

+#ifdef HAVE_XORG_CONFIG_H

+#include <xorg-config.h>

+#endif

+

+#include <X11/X.h>

+#include <X11/Xpoll.h>

+#include <X11/Xproto.h>

+#include "misc.h"

+#include "compiler.h"

+#include "xf86.h"

+#include "xf86Priv.h"

+#define XF86_OS_PRIVS

+#include "xf86_OSlib.h"

+#include <X11/keysym.h>

+

+#ifdef XFreeXDGA

+#include "dgaproc.h"

+#endif

+

+#include <X11/extensions/XI.h>

+#include <X11/extensions/XIproto.h>

+#include "inputstr.h"

+#include "xf86Xinput.h"

+

+#include "mi.h"

+#include "mipointer.h"

+

+#include "xkbsrv.h"

+#include "xkbstr.h"

+

+#ifdef DPMSExtension

+#include <X11/extensions/dpmsconst.h>

+#include "dpmsproc.h"

+#endif

+

+/*

+ * This is a toggling variable:

+ *  FALSE = No VT switching keys have been pressed last time around

+ *  TRUE  = Possible VT switch Pending

+ * (DWH - 12/2/93)

+ *

+ * This has been generalised to work with Linux and *BSD+syscons (DHD)

+ */

+

+Bool VTSwitchEnabled = TRUE;		/* Allows run-time disabling for

+                                         *BSD and for avoiding VT

+                                         switches when using the DRI

+                                         automatic full screen mode.*/

+

+extern fd_set EnabledDevices;

+

+#ifdef XF86PM

+extern void (*xf86OSPMClose)(void);

+#endif

+

+static void xf86VTSwitch(void);

+

+/*

+ * Allow arbitrary drivers or other XFree86 code to register with our main

+ * Wakeup handler.

+ */

+typedef struct x_IHRec {

+    int			fd;

+    InputHandlerProc	ihproc;

+    pointer		data;

+    Bool		enabled;

+    struct x_IHRec *	next;

+} IHRec, *IHPtr;

+

+static IHPtr InputHandlers = NULL;

+

+

+Bool

+LegalModifier(unsigned int key, DeviceIntPtr pDev)

+{

+    return TRUE;

+}

+

+/*

+ * TimeSinceLastInputEvent --

+ *      Function used for screensaver purposes by the os module. Returns the

+ *      time in milliseconds since there last was any input.

+ */

+int

+TimeSinceLastInputEvent(void)

+{

+  if (xf86Info.lastEventTime == 0) {

+    xf86Info.lastEventTime = GetTimeInMillis();

+  }

+  return GetTimeInMillis() - xf86Info.lastEventTime;

+}

+

+/*

+ * SetTimeSinceLastInputEvent --

+ *      Set the lastEventTime to now.

+ */

+void

+SetTimeSinceLastInputEvent(void)

+{

+  xf86Info.lastEventTime = GetTimeInMillis();

+}

+

+/*

+ * ProcessInputEvents --

+ *      Retrieve all waiting input events and pass them to DIX in their

+ *      correct chronological order. Only reads from the system pointer

+ *      and keyboard.

+ */

+void

+ProcessInputEvents (void)

+{

+  int x, y;

+

+  mieqProcessInputEvents();

+

+  /* FIXME: This is a problem if we have multiple pointers */

+  miPointerGetPosition(inputInfo.pointer, &x, &y);

+  xf86SetViewport(xf86Info.currentScreen, x, y);

+}

+

+/*

+ * Handle keyboard events that cause some kind of "action"

+ * (i.e., server termination, video mode changes, VT switches, etc.)

+ */

+void

+xf86ProcessActionEvent(ActionEvent action, void *arg)

+{

+    DebugF("ProcessActionEvent(%d,%x)\n", (int) action, arg);

+    switch (action) {

+    case ACTION_TERMINATE:

+	if (!xf86Info.dontZap) {

+#ifdef XFreeXDGA

+	    DGAShutdown();

+#endif

+	    GiveUp(0);

+	}

+	break;

+    case ACTION_NEXT_MODE:

+	if (!xf86Info.dontZoom)

+	    xf86ZoomViewport(xf86Info.currentScreen,  1);

+	break;

+    case ACTION_PREV_MODE:

+	if (!xf86Info.dontZoom)

+	    xf86ZoomViewport(xf86Info.currentScreen, -1);

+	break;

+    case ACTION_SWITCHSCREEN:

+	if (VTSwitchEnabled && !xf86Info.dontVTSwitch && arg) {

+	    int vtno = *((int *) arg);

+

+	    if (vtno != xf86Info.vtno) {

+		if (!xf86VTActivate(vtno)) {

+		    ErrorF("Failed to switch from vt%02d to vt%02d: %s\n",

+			   xf86Info.vtno, vtno, strerror(errno));

+		}

+	    }

+	}

+	break;

+    case ACTION_SWITCHSCREEN_NEXT:

+	if (VTSwitchEnabled && !xf86Info.dontVTSwitch) {

+	    if (!xf86VTActivate(xf86Info.vtno + 1)) {

+		/* If first try failed, assume this is the last VT and

+		 * try wrapping around to the first vt.

+		 */

+		if (!xf86VTActivate(1)) {

+		    ErrorF("Failed to switch from vt%02d to next vt: %s\n",

+			   xf86Info.vtno, strerror(errno));

+		}

+	    }

+	}

+	break;

+    case ACTION_SWITCHSCREEN_PREV:

+	if (VTSwitchEnabled && !xf86Info.dontVTSwitch && xf86Info.vtno > 0) {

+	    if (!xf86VTActivate(xf86Info.vtno - 1)) {

+		/* Don't know what the maximum VT is, so can't wrap around */

+		ErrorF("Failed to switch from vt%02d to previous vt: %s\n",

+		       xf86Info.vtno, strerror(errno));

+	    }

+	}

+	break;

+    default:

+	break;

+    }

+}

+

+/*

+ * xf86Wakeup --

+ *      Os wakeup handler.

+ */

+

+/* ARGSUSED */

+void

+xf86Wakeup(pointer blockData, int err, pointer pReadmask)

+{

+    fd_set* LastSelectMask = (fd_set*)pReadmask;

+    fd_set devicesWithInput;

+    InputInfoPtr pInfo;

+

+    if (err >= 0) {

+

+	XFD_ANDSET(&devicesWithInput, LastSelectMask, &EnabledDevices);

+	if (XFD_ANYSET(&devicesWithInput)) {

+	    pInfo = xf86InputDevs;

+	    while (pInfo) {

+		if (pInfo->read_input && pInfo->fd >= 0 &&

+		    (FD_ISSET(pInfo->fd, &devicesWithInput) != 0)) {

+		    int sigstate = xf86BlockSIGIO();

+

+		    /*

+		     * Remove the descriptior from the set because more than one

+		     * device may share the same file descriptor.

+		     */

+		    FD_CLR(pInfo->fd, &devicesWithInput);

+

+		    pInfo->read_input(pInfo);

+		    xf86UnblockSIGIO(sigstate);

+		}

+		pInfo = pInfo->next;

+	    }

+	}

+    }

+

+    if (err >= 0) { /* we don't want the handlers called if select() */

+	IHPtr ih;   /* returned with an error condition, do we?      */

+	

+	for (ih = InputHandlers; ih; ih = ih->next) {

+	    if (ih->enabled && ih->fd >= 0 && ih->ihproc &&

+		(FD_ISSET(ih->fd, ((fd_set *)pReadmask)) != 0)) {

+		ih->ihproc(ih->fd, ih->data);

+	    }

+	}

+    }

+

+    if (xf86VTSwitchPending()) xf86VTSwitch();

+}

+

+

+/*

+ * xf86SigioReadInput --

+ *    signal handler for the SIGIO signal.

+ */

+static void

+xf86SigioReadInput(int fd, void *closure)

+{

+    int errno_save = errno;

+    InputInfoPtr pInfo = closure;

+

+    pInfo->read_input(pInfo);

+

+    errno = errno_save;

+}

+

+/*

+ * xf86AddEnabledDevice --

+ *

+ */

+void

+xf86AddEnabledDevice(InputInfoPtr pInfo)

+{

+    if (!xf86InstallSIGIOHandler (pInfo->fd, xf86SigioReadInput, pInfo)) {

+	AddEnabledDevice(pInfo->fd);

+    }

+}

+

+/*

+ * xf86RemoveEnabledDevice --

+ *

+ */

+void

+xf86RemoveEnabledDevice(InputInfoPtr pInfo)

+{

+    if (!xf86RemoveSIGIOHandler (pInfo->fd)) {

+	RemoveEnabledDevice(pInfo->fd);

+    }

+}

+

+static int *xf86SignalIntercept = NULL;

+

+void

+xf86InterceptSignals(int *signo)

+{

+    if ((xf86SignalIntercept = signo))

+	*signo = -1;

+}

+

+static void (*xf86SigIllHandler)(void) = NULL;

+

+void

+xf86InterceptSigIll(void (*sigillhandler)(void))

+{

+    xf86SigIllHandler = sigillhandler;

+}

+

+/*

+ * xf86SigWrapper --

+ *    Catch unexpected signals and exit or continue cleanly.

+ */

+int

+xf86SigWrapper(int signo)

+{

+  if ((signo == SIGILL) && xf86SigIllHandler) {

+    (*xf86SigIllHandler)();

+    return 0; /* continue */

+  }

+

+  if (xf86SignalIntercept && (*xf86SignalIntercept < 0)) {

+    *xf86SignalIntercept = signo;

+    return 0; /* continue */

+  }

+

+  xf86Info.caughtSignal = TRUE;

+  return 1; /* abort */

+}

+

+/*

+ * xf86PrintBacktrace --

+ *    Print a stack backtrace for debugging purposes.

+ */

+void

+xf86PrintBacktrace(void)

+{

+    xorg_backtrace();

+}

+

+#define KeyPressed(k) (keyc->postdown[k >> 3] & (1 << (k & 7)))

+

+static void

+xf86ReleaseKeys(DeviceIntPtr pDev)

+{

+    KeyClassPtr keyc;

+    int i, j, nevents, sigstate;

+

+    if (!pDev || !pDev->key)

+        return;

+

+    keyc = pDev->key;

+

+    /*

+     * Hmm... here is the biggest hack of every time !

+     * It may be possible that a switch-vt procedure has finished BEFORE

+     * you released all keys neccessary to do this. That peculiar behavior

+     * can fool the X-server pretty much, cause it assumes that some keys

+     * were not released. TWM may stuck alsmost completly....

+     * OK, what we are doing here is after returning from the vt-switch

+     * exeplicitely unrelease all keyboard keys before the input-devices

+     * are reenabled.

+     */

+

+    for (i = keyc->xkbInfo->desc->min_key_code;

+         i < keyc->xkbInfo->desc->max_key_code;

+         i++) {

+        if (KeyPressed(i)) {

+            sigstate = xf86BlockSIGIO ();

+            nevents = GetKeyboardEvents(xf86Events, pDev, KeyRelease, i);

+            for (j = 0; j < nevents; j++)

+                mieqEnqueue(pDev, (InternalEvent*)(xf86Events + j)->event);

+            xf86UnblockSIGIO(sigstate);

+        }

+    }

+}

+

+/*

+ * xf86VTSwitch --

+ *      Handle requests for switching the vt.

+ */

+static void

+xf86VTSwitch(void)

+{

+  int i, prevSIGIO;

+  InputInfoPtr pInfo;

+  IHPtr ih;

+

+  DebugF("xf86VTSwitch()\n");

+

+#ifdef XFreeXDGA

+  if(!DGAVTSwitch())

+	return;

+#endif

+

+  /*

+   * Since all screens are currently all in the same state it is sufficient

+   * check the first.  This might change in future.

+   */

+  if (xf86Screens[0]->vtSema) {

+

+    DebugF("xf86VTSwitch: Leaving, xf86Exiting is %s\n",

+	   BOOLTOSTRING((dispatchException & DE_TERMINATE) ? TRUE : FALSE));

+#ifdef DPMSExtension

+    if (DPMSPowerLevel != DPMSModeOn)

+	DPMSSet(serverClient, DPMSModeOn);

+#endif

+    for (i = 0; i < xf86NumScreens; i++) {

+      if (!(dispatchException & DE_TERMINATE))

+	if (xf86Screens[i]->EnableDisableFBAccess)

+	  (*xf86Screens[i]->EnableDisableFBAccess) (i, FALSE);

+    }

+

+    /*

+     * Keep the order: Disable Device > LeaveVT

+     *                        EnterVT > EnableDevice

+     */

+    for (ih = InputHandlers; ih; ih = ih->next)

+      xf86DisableInputHandler(ih);

+    for (pInfo = xf86InputDevs; pInfo; pInfo = pInfo->next) {

+      if (pInfo->dev) {

+          xf86ReleaseKeys(pInfo->dev);

+          ProcessInputEvents();

+          DisableDevice(pInfo->dev, TRUE);

+      }

+    }

+    xf86EnterServerState(SETUP);

+    for (i = 0; i < xf86NumScreens; i++)

+	xf86Screens[i]->LeaveVT(i, 0);

+

+    xf86AccessLeave();      /* We need this here, otherwise */

+

+    if (!xf86VTSwitchAway()) {

+      /*

+       * switch failed

+       */

+

+      DebugF("xf86VTSwitch: Leave failed\n");

+      prevSIGIO = xf86BlockSIGIO();

+      xf86AccessEnter();

+      xf86EnterServerState(SETUP);

+      for (i = 0; i < xf86NumScreens; i++) {

+	if (!xf86Screens[i]->EnterVT(i, 0))

+	  FatalError("EnterVT failed for screen %d\n", i);

+      }

+      xf86EnterServerState(OPERATING);

+      if (!(dispatchException & DE_TERMINATE)) {

+	for (i = 0; i < xf86NumScreens; i++) {

+	  if (xf86Screens[i]->EnableDisableFBAccess)

+	    (*xf86Screens[i]->EnableDisableFBAccess) (i, TRUE);

+	}

+      }

+      dixSaveScreens(serverClient, SCREEN_SAVER_FORCER, ScreenSaverReset);

+

+      pInfo = xf86InputDevs;

+      while (pInfo) {

+        if (pInfo->dev)

+            EnableDevice(pInfo->dev, TRUE);

+	pInfo = pInfo->next;

+      }

+      for (ih = InputHandlers; ih; ih = ih->next)

+        xf86EnableInputHandler(ih);

+

+      xf86UnblockSIGIO(prevSIGIO);

+

+    } else {

+#ifdef XF86PM

+	  if (xf86OSPMClose)

+	      xf86OSPMClose();

+	  xf86OSPMClose = NULL;

+#endif

+

+	for (i = 0; i < xf86NumScreens; i++) {

+ 	    /*

+ 	     * zero all access functions to

+ 	     * trap calls when switched away.

+ 	     */

+	    xf86Screens[i]->vtSema = FALSE;

+	}

+	if (xorgHWAccess)

+	    xf86DisableIO();

+    }

+  } else {

+

+    DebugF("xf86VTSwitch: Entering\n");

+    if (!xf86VTSwitchTo()) return;

+

+    prevSIGIO = xf86BlockSIGIO();

+#ifdef XF86PM

+    xf86OSPMClose = xf86OSPMOpen();

+#endif

+

+    if (xorgHWAccess)

+	xf86EnableIO();

+    xf86AccessEnter();

+    xf86EnterServerState(SETUP);

+    for (i = 0; i < xf86NumScreens; i++) {

+      xf86Screens[i]->vtSema = TRUE;

+      if (!xf86Screens[i]->EnterVT(i, 0))

+	  FatalError("EnterVT failed for screen %d\n", i);

+    }

+    xf86EnterServerState(OPERATING);

+    for (i = 0; i < xf86NumScreens; i++) {

+      if (xf86Screens[i]->EnableDisableFBAccess)

+	(*xf86Screens[i]->EnableDisableFBAccess)(i, TRUE);

+    }

+

+    /* Turn screen saver off when switching back */

+    dixSaveScreens(serverClient, SCREEN_SAVER_FORCER, ScreenSaverReset);

+

+    pInfo = xf86InputDevs;

+    while (pInfo) {

+      if (pInfo->dev)

+          EnableDevice(pInfo->dev, TRUE);

+      pInfo = pInfo->next;

+    }

+

+    for (ih = InputHandlers; ih; ih = ih->next)

+      xf86EnableInputHandler(ih);

+

+    xf86UnblockSIGIO(prevSIGIO);

+  }

+}

+

+

+/* Input handler registration */

+

+static pointer

+addInputHandler(int fd, InputHandlerProc proc, pointer data)

+{

+    IHPtr ih;

+

+    if (fd < 0 || !proc)

+	return NULL;

+

+    ih = xcalloc(sizeof(*ih), 1);

+    if (!ih)

+	return NULL;

+

+    ih->fd = fd;

+    ih->ihproc = proc;

+    ih->data = data;

+    ih->enabled = TRUE;

+

+    ih->next = InputHandlers;

+    InputHandlers = ih;

+

+    return ih;

+}

+

+pointer

+xf86AddInputHandler(int fd, InputHandlerProc proc, pointer data)

+{

+    IHPtr ih = addInputHandler(fd, proc, data);

+

+    if (ih)

+        AddEnabledDevice(fd);

+    return ih;

+}

+

+pointer

+xf86AddGeneralHandler(int fd, InputHandlerProc proc, pointer data)

+{

+    IHPtr ih = addInputHandler(fd, proc, data);

+

+    if (ih)

+        AddGeneralSocket(fd);

+    return ih;

+}

+

+static void

+removeInputHandler(IHPtr ih)

+{

+    IHPtr p;

+

+    if (ih == InputHandlers)

+	InputHandlers = ih->next;

+    else {

+	p = InputHandlers;

+	while (p && p->next != ih)

+	    p = p->next;

+	if (ih)

+	    p->next = ih->next;

+    }

+    xfree(ih);

+}

+

+int

+xf86RemoveInputHandler(pointer handler)

+{

+    IHPtr ih;

+    int fd;

+

+    if (!handler)

+	return -1;

+

+    ih = handler;

+    fd = ih->fd;

+

+    if (ih->fd >= 0)

+	RemoveEnabledDevice(ih->fd);

+    removeInputHandler(ih);

+

+    return fd;

+}

+

+int

+xf86RemoveGeneralHandler(pointer handler)

+{

+    IHPtr ih;

+    int fd;

+

+    if (!handler)

+	return -1;

+

+    ih = handler;

+    fd = ih->fd;

+

+    if (ih->fd >= 0)

+	RemoveGeneralSocket(ih->fd);

+    removeInputHandler(ih);

+

+    return fd;

+}

+

+void

+xf86DisableInputHandler(pointer handler)

+{

+    IHPtr ih;

+

+    if (!handler)

+	return;

+

+    ih = handler;

+    ih->enabled = FALSE;

+    if (ih->fd >= 0)

+	RemoveEnabledDevice(ih->fd);

+}

+

+void

+xf86DisableGeneralHandler(pointer handler)

+{

+    IHPtr ih;

+

+    if (!handler)

+	return;

+

+    ih = handler;

+    ih->enabled = FALSE;

+    if (ih->fd >= 0)

+	RemoveGeneralSocket(ih->fd);

+}

+

+void

+xf86EnableInputHandler(pointer handler)

+{

+    IHPtr ih;

+

+    if (!handler)

+	return;

+

+    ih = handler;

+    ih->enabled = TRUE;

+    if (ih->fd >= 0)

+	AddEnabledDevice(ih->fd);

+}

+

+void

+xf86EnableGeneralHandler(pointer handler)

+{

+    IHPtr ih;

+

+    if (!handler)

+	return;

+

+    ih = handler;

+    ih->enabled = TRUE;

+    if (ih->fd >= 0)

+	AddGeneralSocket(ih->fd);

+}

+

+/*

+ * As used currently by the DRI, the return value is ignored.

+ */

+Bool

+xf86EnableVTSwitch(Bool new)

+{

+    static Bool def = TRUE;

+    Bool old;

+

+    old = VTSwitchEnabled;

+    if (!new) {

+	/* Disable VT switching */

+	def = VTSwitchEnabled;

+	VTSwitchEnabled = FALSE;

+    } else {

+	/* Restore VT switching to default */

+	VTSwitchEnabled = def;

+    }

+    return old;

+}

+

+void

+DDXRingBell(int volume, int pitch, int duration) {

+    xf86OSRingBell(volume, pitch, duration);

+}