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Diffstat (limited to 'xorg-server/hw/xfree86/common/xf86Events.c')
-rw-r--r--xorg-server/hw/xfree86/common/xf86Events.c1511
1 files changed, 753 insertions, 758 deletions
diff --git a/xorg-server/hw/xfree86/common/xf86Events.c b/xorg-server/hw/xfree86/common/xf86Events.c
index 004807483..84c0d182a 100644
--- a/xorg-server/hw/xfree86/common/xf86Events.c
+++ b/xorg-server/hw/xfree86/common/xf86Events.c
@@ -1,758 +1,753 @@
-/*
- * 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();
-}
-
-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 (key_is_down(pDev, i, KEY_POSTED)) {
- 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 = calloc(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;
-}
-
-/**
- * Set the handler for the console's fd. Replaces (and returns) the previous
- * handler or NULL, whichever appropriate.
- * proc may be NULL if the server should not handle events on the console.
- */
-InputHandlerProc
-xf86SetConsoleHandler(InputHandlerProc proc, pointer data)
-{
- static InputHandlerProc handler = NULL;
- InputHandlerProc old_handler = handler;
-
- if (old_handler)
- xf86RemoveGeneralHandler(old_handler);
-
- xf86AddGeneralHandler(xf86Info.consoleFd, proc, data);
- handler = proc;
-
- return old_handler;
-}
-
-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;
- }
- free(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();
+}
+
+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 (key_is_down(pDev, i, KEY_POSTED)) {
+ 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;
+ static int 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);
+ }
+ }
+
+ prevSIGIO = xf86BlockSIGIO();
+ 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");
+ xf86AccessEnter();
+ for (i = 0; i < xf86NumScreens; i++) {
+ if (!xf86Screens[i]->EnterVT(i, 0))
+ FatalError("EnterVT failed for screen %d\n", i);
+ }
+ 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;
+
+#ifdef XF86PM
+ xf86OSPMClose = xf86OSPMOpen();
+#endif
+
+ if (xorgHWAccess)
+ xf86EnableIO();
+ xf86AccessEnter();
+ for (i = 0; i < xf86NumScreens; i++) {
+ xf86Screens[i]->vtSema = TRUE;
+ if (!xf86Screens[i]->EnterVT(i, 0))
+ FatalError("EnterVT failed for screen %d\n", i);
+ }
+ 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 = calloc(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;
+}
+
+/**
+ * Set the handler for the console's fd. Replaces (and returns) the previous
+ * handler or NULL, whichever appropriate.
+ * proc may be NULL if the server should not handle events on the console.
+ */
+InputHandlerProc
+xf86SetConsoleHandler(InputHandlerProc proc, pointer data)
+{
+ static InputHandlerProc handler = NULL;
+ InputHandlerProc old_handler = handler;
+
+ if (old_handler)
+ xf86RemoveGeneralHandler(old_handler);
+
+ xf86AddGeneralHandler(xf86Info.consoleFd, proc, data);
+ handler = proc;
+
+ return old_handler;
+}
+
+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;
+ }
+ free(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);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 17:39:58 +0000