/* * 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 #endif #include #include #include #include "misc.h" #include "compiler.h" #include "xf86.h" #include "xf86Priv.h" #define XF86_OS_PRIVS #include "xf86_OSlib.h" #include #ifdef XFreeXDGA #include "dgaproc.h" #endif #include #include #include "inputstr.h" #include "xf86Xinput.h" #include "mi.h" #include "mipointer.h" #include "xkbsrv.h" #include "xkbstr.h" #ifdef DPMSExtension #include #include "dpmsproc.h" #endif #include "xf86platformBus.h" /* * 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) { xf86Msg(X_INFO, "Server zapped. Shutting down.\n"); #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)) { OsBlockSIGIO(); /* * 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); OsReleaseSIGIO(); } pInfo = pInfo->next; } } } if (err >= 0) { /* we don't want the handlers called if select() */ IHPtr ih, ih_tmp; /* returned with an error condition, do we? */ nt_list_for_each_entry_safe(ih, ih_tmp, InputHandlers, 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; 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)) { OsBlockSIGIO(); QueueKeyboardEvents(pDev, KeyRelease, i, NULL); OsReleaseSIGIO(); } } } /* * 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 (xf86VTOwner()) { 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) (xf86Screens[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) { if (!pInfo->dev->enabled) pInfo->flags |= XI86_DEVICE_DISABLED; xf86ReleaseKeys(pInfo->dev); ProcessInputEvents(); DisableDevice(pInfo->dev, TRUE); } } OsBlockSIGIO(); for (i = 0; i < xf86NumScreens; i++) xf86Screens[i]->LeaveVT(xf86Screens[i]); for (i = 0; i < xf86NumGPUScreens; i++) xf86GPUScreens[i]->LeaveVT(xf86GPUScreens[i]); 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(xf86Screens[i])) FatalError("EnterVT failed for screen %d\n", i); } for (i = 0; i < xf86NumGPUScreens; i++) { if (!xf86GPUScreens[i]->EnterVT(xf86GPUScreens[i])) FatalError("EnterVT failed for gpu screen %d\n", i); } if (!(dispatchException & DE_TERMINATE)) { for (i = 0; i < xf86NumScreens; i++) { if (xf86Screens[i]->EnableDisableFBAccess) (*xf86Screens[i]->EnableDisableFBAccess) (xf86Screens[i], TRUE); } } dixSaveScreens(serverClient, SCREEN_SAVER_FORCER, ScreenSaverReset); pInfo = xf86InputDevs; while (pInfo) { if (pInfo->dev && (pInfo->flags & XI86_DEVICE_DISABLED) == 0) EnableDevice(pInfo->dev, TRUE); pInfo->flags &= ~XI86_DEVICE_DISABLED; pInfo = pInfo->next; } for (ih = InputHandlers; ih; ih = ih->next) xf86EnableInputHandler(ih); OsReleaseSIGIO(); } 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(xf86Screens[i])) FatalError("EnterVT failed for screen %d\n", i); } for (i = 0; i < xf86NumGPUScreens; i++) { xf86GPUScreens[i]->vtSema = TRUE; if (!xf86GPUScreens[i]->EnterVT(xf86GPUScreens[i])) FatalError("EnterVT failed for gpu screen %d\n", i); } for (i = 0; i < xf86NumScreens; i++) { if (xf86Screens[i]->EnableDisableFBAccess) (*xf86Screens[i]->EnableDisableFBAccess) (xf86Screens[i], TRUE); } /* Turn screen saver off when switching back */ dixSaveScreens(serverClient, SCREEN_SAVER_FORCER, ScreenSaverReset); pInfo = xf86InputDevs; while (pInfo) { if (pInfo->dev && (pInfo->flags & XI86_DEVICE_DISABLED) == 0) EnableDevice(pInfo->dev, TRUE); pInfo->flags &= ~XI86_DEVICE_DISABLED; pInfo = pInfo->next; } for (ih = InputHandlers; ih; ih = ih->next) xf86EnableInputHandler(ih); #ifdef XSERVER_PLATFORM_BUS /* check for any new output devices */ xf86platformVTProbe(); #endif OsReleaseSIGIO(); } } /* 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 IHPtr handler = NULL; InputHandlerProc old_proc = NULL; if (handler) { old_proc = handler->ihproc; xf86RemoveGeneralHandler(handler); } handler = xf86AddGeneralHandler(xf86Info.consoleFd, proc, data); return old_proc; } 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); } Bool xf86VTOwner(void) { /* at system startup xf86Screens[0] won't be set - but we will own the VT */ if (xf86NumScreens == 0) return TRUE; return xf86Screens[0]->vtSema; }