1192 lines
29 KiB
C
1192 lines
29 KiB
C
/*
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* Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany.
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of Thomas Roell not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. Thomas Roell makes no representations
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* about the suitability of this software for any purpose. It is provided
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* "as is" without express or implied warranty.
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*
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* THOMAS ROELL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THOMAS ROELL BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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/*
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* Copyright (c) 1994-2003 by The XFree86 Project, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Except as contained in this notice, the name of the copyright holder(s)
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* and author(s) shall not be used in advertising or otherwise to promote
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* the sale, use or other dealings in this Software without prior written
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* authorization from the copyright holder(s) and author(s).
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*/
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/* [JCH-96/01/21] Extended std reverse map to four buttons. */
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include <X11/X.h>
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#include <X11/Xpoll.h>
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#include <X11/Xproto.h>
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#include "misc.h"
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#include "compiler.h"
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#include "xf86.h"
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#include "xf86Priv.h"
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#define XF86_OS_PRIVS
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#include "xf86_OSlib.h"
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#include "atKeynames.h"
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#ifdef XFreeXDGA
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#include "dgaproc.h"
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#endif
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#ifdef XINPUT
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#include <X11/extensions/XI.h>
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#include <X11/extensions/XIproto.h>
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#else
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#include "inputstr.h"
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#endif
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#include "xf86Xinput.h"
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#include "mi.h"
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#include "mipointer.h"
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#ifdef XF86BIGFONT
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#define _XF86BIGFONT_SERVER_
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#include <X11/extensions/xf86bigfont.h>
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#endif
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#ifdef XKB
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extern Bool noXkbExtension;
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#endif
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#ifdef DPMSExtension
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#define DPMS_SERVER
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#include <X11/extensions/dpms.h>
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#include "dpmsproc.h"
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#endif
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#define XE_POINTER 1
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#define XE_KEYBOARD 2
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#define EqEnqueue(pDev, ev) { \
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int __sigstate = xf86BlockSIGIO (); \
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mieqEnqueue (pDev, ev); \
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xf86UnblockSIGIO(__sigstate); \
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}
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/*
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* The first of many hacks to get VT switching to work under
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* Solaris 2.1 for x86. The basic problem is that Solaris is supposed
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* to be SVR4. It is for the most part, except where the video interface
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* is concerned. These hacks work around those problems.
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* See the comments for Linux, and SCO.
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*
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* This is a toggling variable:
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* FALSE = No VT switching keys have been pressed last time around
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* TRUE = Possible VT switch Pending
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* (DWH - 12/2/93)
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*
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* This has been generalised to work with Linux and *BSD+syscons (DHD)
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*/
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_X_EXPORT Bool VTSwitchEnabled = TRUE; /* Allows run-time disabling for
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*BSD and for avoiding VT
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switches when using the DRI
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automatic full screen mode.*/
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extern fd_set EnabledDevices;
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#ifdef XF86PM
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extern void (*xf86OSPMClose)(void);
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#endif
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static void xf86VTSwitch(void);
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/*
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* Allow arbitrary drivers or other XFree86 code to register with our main
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* Wakeup handler.
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*/
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typedef struct x_IHRec {
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int fd;
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InputHandlerProc ihproc;
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pointer data;
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Bool enabled;
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struct x_IHRec * next;
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} IHRec, *IHPtr;
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static IHPtr InputHandlers = NULL;
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Bool
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LegalModifier(unsigned int key, DeviceIntPtr pDev)
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{
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return TRUE;
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}
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/*
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* TimeSinceLastInputEvent --
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* Function used for screensaver purposes by the os module. Returns the
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* time in milliseconds since there last was any input.
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*/
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int
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TimeSinceLastInputEvent()
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{
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if (xf86Info.lastEventTime == 0) {
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xf86Info.lastEventTime = GetTimeInMillis();
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}
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return GetTimeInMillis() - xf86Info.lastEventTime;
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}
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/*
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* SetTimeSinceLastInputEvent --
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* Set the lastEventTime to now.
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*/
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_X_EXPORT void
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SetTimeSinceLastInputEvent()
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{
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xf86Info.lastEventTime = GetTimeInMillis();
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}
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/*
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* ProcessInputEvents --
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* Retrieve all waiting input events and pass them to DIX in their
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* correct chronological order. Only reads from the system pointer
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* and keyboard.
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*/
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void
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ProcessInputEvents ()
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{
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int x, y;
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#ifdef INHERIT_LOCK_STATE
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static int generation = 0;
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#endif
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/*
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* With INHERIT_LOCK_STATE defined, the initial state of CapsLock, NumLock
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* and ScrollLock will be set to match that of the VT the server is
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* running on.
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*/
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#ifdef INHERIT_LOCK_STATE
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if (generation != serverGeneration) {
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xEvent kevent;
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DevicePtr pKeyboard = xf86Info.pKeyboard;
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extern unsigned int xf86InitialCaps, xf86InitialNum, xf86InitialScroll;
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generation = serverGeneration;
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kevent.u.keyButtonPointer.time = GetTimeInMillis();
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kevent.u.keyButtonPointer.rootX = 0;
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kevent.u.keyButtonPointer.rootY = 0;
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kevent.u.u.type = KeyPress;
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if (xf86InitialCaps) {
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kevent.u.u.detail = xf86InitialCaps;
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(* pKeyboard->processInputProc)(&kevent, (DeviceIntPtr)pKeyboard, 1);
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xf86InitialCaps = 0;
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}
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if (xf86InitialNum) {
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kevent.u.u.detail = xf86InitialNum;
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(* pKeyboard->processInputProc)(&kevent, (DeviceIntPtr)pKeyboard, 1);
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xf86InitialNum = 0;
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}
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if (xf86InitialScroll) {
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kevent.u.u.detail = xf86InitialScroll;
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(* pKeyboard->processInputProc)(&kevent, (DeviceIntPtr)pKeyboard, 1);
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xf86InitialScroll = 0;
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}
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}
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#endif
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xf86Info.inputPending = FALSE;
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mieqProcessInputEvents();
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miPointerUpdateSprite(inputInfo.pointer);
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miPointerGetPosition(inputInfo.pointer, &x, &y);
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xf86SetViewport(xf86Info.currentScreen, x, y);
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}
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void
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xf86GrabServerCallback(CallbackListPtr *callbacks, pointer data, pointer args)
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{
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ServerGrabInfoRec *grab = (ServerGrabInfoRec*)args;
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xf86Info.grabInfo.server.client = grab->client;
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xf86Info.grabInfo.server.grabstate = grab->grabstate;
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}
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/*
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* Handle keyboard events that cause some kind of "action"
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* (i.e., server termination, video mode changes, VT switches, etc.)
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*/
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void
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xf86ProcessActionEvent(ActionEvent action, void *arg)
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{
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#ifdef DEBUG
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ErrorF("ProcessActionEvent(%d,%x)\n", (int) action, arg);
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#endif
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switch (action) {
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case ACTION_TERMINATE:
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if (!xf86Info.dontZap) {
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#ifdef XFreeXDGA
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DGAShutdown();
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#endif
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GiveUp(0);
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}
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break;
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case ACTION_NEXT_MODE:
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if (!xf86Info.dontZoom)
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xf86ZoomViewport(xf86Info.currentScreen, 1);
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break;
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case ACTION_PREV_MODE:
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if (!xf86Info.dontZoom)
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xf86ZoomViewport(xf86Info.currentScreen, -1);
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break;
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case ACTION_DISABLEGRAB:
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if (!xf86Info.grabInfo.disabled && xf86Info.grabInfo.allowDeactivate) {
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if (inputInfo.pointer && inputInfo.pointer->grab != NULL &&
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inputInfo.pointer->DeactivateGrab)
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inputInfo.pointer->DeactivateGrab(inputInfo.pointer);
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if (inputInfo.keyboard && inputInfo.keyboard->grab != NULL &&
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inputInfo.keyboard->DeactivateGrab)
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inputInfo.keyboard->DeactivateGrab(inputInfo.keyboard);
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}
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break;
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case ACTION_CLOSECLIENT:
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if (!xf86Info.grabInfo.disabled && xf86Info.grabInfo.allowClosedown) {
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ClientPtr pointer, keyboard, server;
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pointer = keyboard = server = NULL;
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if (inputInfo.pointer && inputInfo.pointer->grab != NULL)
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pointer = clients[CLIENT_ID(inputInfo.pointer->grab->resource)];
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if (inputInfo.keyboard && inputInfo.keyboard->grab != NULL) {
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keyboard = clients[CLIENT_ID(inputInfo.keyboard->grab->resource)];
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if (keyboard == pointer)
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keyboard = NULL;
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}
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if ((xf86Info.grabInfo.server.grabstate == SERVER_GRABBED) &&
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(((server = xf86Info.grabInfo.server.client) == pointer) ||
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(server == keyboard)))
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server = NULL;
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if (pointer)
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CloseDownClient(pointer);
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if (keyboard)
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CloseDownClient(keyboard);
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if (server)
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CloseDownClient(server);
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}
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break;
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#if !defined(__SOL8__) && !defined(sgi) && \
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(!defined(sun) || defined(__i386__)) && defined(VT_ACTIVATE)
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case ACTION_SWITCHSCREEN:
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if (VTSwitchEnabled && !xf86Info.dontVTSwitch && arg) {
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int vtno = *((int *) arg);
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#if defined(__SCO__) || defined(__UNIXWARE__)
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vtno--;
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#endif
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#if defined(QNX4)
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xf86Info.vtRequestsPending = vtno;
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#else
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if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, vtno) < 0)
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ErrorF("Failed to switch consoles (%s)\n", strerror(errno));
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#endif
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}
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break;
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case ACTION_SWITCHSCREEN_NEXT:
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if (VTSwitchEnabled && !xf86Info.dontVTSwitch) {
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/* Shouldn't this be true for (sun) && (i386) && (SVR4) ? */
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#if defined(__SCO__) || defined(__UNIXWARE__)
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if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, xf86Info.vtno) < 0)
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#else
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if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, xf86Info.vtno + 1) < 0)
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#endif
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#if defined (__SCO__) || (defined(sun) && defined (__i386__) && defined (SVR4)) || defined(__UNIXWARE__)
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if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, 0) < 0)
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#else
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if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, 1) < 0)
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#endif
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ErrorF("Failed to switch consoles (%s)\n", strerror(errno));
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}
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break;
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case ACTION_SWITCHSCREEN_PREV:
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if (VTSwitchEnabled && !xf86Info.dontVTSwitch && xf86Info.vtno > 0) {
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if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, xf86Info.vtno - 1) < 0)
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ErrorF("Failed to switch consoles (%s)\n", strerror(errno));
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}
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break;
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#endif
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case ACTION_MESSAGE:
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{
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char *retstr, *message = (char *) arg;
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ScrnInfoPtr pScr = XF86SCRNINFO(xf86Info.currentScreen);
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#ifdef DEBUG
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ErrorF("ActionMessage: '%s'\n", message);
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#endif
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/* Okay the message made it to the ddx. The common layer */
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/* can check for relevant messages here and react to any */
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/* that have a global effect. For example: */
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/* */
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/* if (!strcmp(message, "foo") { */
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/* do_foo(); break */
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/* } */
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/* */
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/* otherwise fallback to sending a key event message to */
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/* the current screen's driver: */
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if (*pScr->HandleMessage != NULL) {
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(void) (*pScr->HandleMessage)(pScr->scrnIndex,
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"KeyEventMessage", message, &retstr);
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}
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}
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break;
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default:
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break;
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}
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}
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#define ModifierIsSet(k) ((modifiers & (k)) == (k))
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_X_EXPORT Bool
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xf86CommonSpecialKey(int key, Bool down, int modifiers)
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{
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if ((!ModifierIsSet(ShiftMask)) &&
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(((ModifierIsSet(ControlMask | AltMask)) ||
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(ModifierIsSet(ControlMask | AltLangMask))))) {
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switch (key) {
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case KEY_BackSpace:
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xf86ProcessActionEvent(ACTION_TERMINATE, NULL);
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break;
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/*
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* Check grabs
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*/
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case KEY_KP_Divide:
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xf86ProcessActionEvent(ACTION_DISABLEGRAB, NULL);
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break;
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case KEY_KP_Multiply:
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xf86ProcessActionEvent(ACTION_CLOSECLIENT, NULL);
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break;
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/*
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* The idea here is to pass the scancode down to a list of
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* registered routines. There should be some standard conventions
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* for processing certain keys.
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*/
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case KEY_KP_Minus: /* Keypad - */
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if (down) xf86ProcessActionEvent(ACTION_PREV_MODE, NULL);
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if (!xf86Info.dontZoom) return TRUE;
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break;
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case KEY_KP_Plus: /* Keypad + */
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if (down) xf86ProcessActionEvent(ACTION_NEXT_MODE, NULL);
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if (!xf86Info.dontZoom) return TRUE;
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break;
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}
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}
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return FALSE;
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}
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/*
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* xf86Wakeup --
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* Os wakeup handler.
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*/
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/* ARGSUSED */
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void
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xf86Wakeup(pointer blockData, int err, pointer pReadmask)
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{
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#if !defined(__QNX__)
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fd_set* LastSelectMask = (fd_set*)pReadmask;
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fd_set devicesWithInput;
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InputInfoPtr pInfo;
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if (err >= 0) {
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XFD_ANDSET(&devicesWithInput, LastSelectMask, &EnabledDevices);
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if (XFD_ANYSET(&devicesWithInput)) {
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pInfo = xf86InputDevs;
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while (pInfo) {
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if (pInfo->read_input && pInfo->fd >= 0 &&
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(FD_ISSET(pInfo->fd, &devicesWithInput) != 0)) {
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int sigstate = xf86BlockSIGIO();
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pInfo->read_input(pInfo);
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xf86UnblockSIGIO(sigstate);
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/*
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* Remove the descriptior from the set because more than one
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* device may share the same file descriptor.
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*/
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FD_CLR(pInfo->fd, &devicesWithInput);
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}
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pInfo = pInfo->next;
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}
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}
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}
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#else /* __QNX__ */
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InputInfoPtr pInfo;
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pInfo = xf86InputDevs;
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while (pInfo) {
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if (pInfo->read_input && pInfo->fd >= 0) {
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int sigstate = xf86BlockSIGIO();
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|
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pInfo->read_input(pInfo);
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xf86UnblockSIGIO(sigstate);
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/*
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* Must break here because more than one device may share
|
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* the same file descriptor.
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*/
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break;
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}
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pInfo = pInfo->next;
|
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}
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#endif /* __QNX__ */
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if (err >= 0) { /* we don't want the handlers called if select() */
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IHPtr ih; /* returned with an error condition, do we? */
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for (ih = InputHandlers; ih; ih = ih->next) {
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if (ih->enabled && ih->fd >= 0 && ih->ihproc &&
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(FD_ISSET(ih->fd, ((fd_set *)pReadmask)) != 0)) {
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ih->ihproc(ih->fd, ih->data);
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}
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}
|
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}
|
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|
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if (xf86VTSwitchPending()) xf86VTSwitch();
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|
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if (xf86Info.inputPending) ProcessInputEvents();
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}
|
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|
|
|
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/*
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* xf86SigioReadInput --
|
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* signal handler for the SIGIO signal.
|
|
*/
|
|
static void
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xf86SigioReadInput(int fd,
|
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void *closure)
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{
|
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int errno_save = errno;
|
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int sigstate = xf86BlockSIGIO();
|
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InputInfoPtr pInfo = (InputInfoPtr) closure;
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|
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pInfo->read_input(pInfo);
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|
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xf86UnblockSIGIO(sigstate);
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errno = errno_save;
|
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}
|
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|
|
/*
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|
* xf86AddEnabledDevice --
|
|
*
|
|
*/
|
|
_X_EXPORT void
|
|
xf86AddEnabledDevice(InputInfoPtr pInfo)
|
|
{
|
|
if (!xf86InstallSIGIOHandler (pInfo->fd, xf86SigioReadInput, pInfo)) {
|
|
AddEnabledDevice(pInfo->fd);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* xf86RemoveEnabledDevice --
|
|
*
|
|
*/
|
|
_X_EXPORT void
|
|
xf86RemoveEnabledDevice(InputInfoPtr pInfo)
|
|
{
|
|
if (!xf86RemoveSIGIOHandler (pInfo->fd)) {
|
|
RemoveEnabledDevice(pInfo->fd);
|
|
}
|
|
}
|
|
|
|
static int *xf86SignalIntercept = NULL;
|
|
|
|
_X_EXPORT void
|
|
xf86InterceptSignals(int *signo)
|
|
{
|
|
if ((xf86SignalIntercept = signo))
|
|
*signo = -1;
|
|
}
|
|
|
|
static void (*xf86SigIllHandler)(void) = NULL;
|
|
|
|
_X_EXPORT void
|
|
xf86InterceptSigIll(void (*sigillhandler)(void))
|
|
{
|
|
xf86SigIllHandler = sigillhandler;
|
|
}
|
|
|
|
#ifdef HAVE_BACKTRACE
|
|
#include <execinfo.h>
|
|
|
|
static __inline__ void xorg_backtrace(void)
|
|
{
|
|
void *array[32]; /* deeper nesting than this means something's wrong */
|
|
size_t size, i;
|
|
char **strings;
|
|
ErrorF("\nBacktrace:\n");
|
|
size = backtrace(array, 32);
|
|
strings = backtrace_symbols(array, size);
|
|
for (i = 0; i < size; i++)
|
|
ErrorF("%d: %s\n", i, strings[i]);
|
|
free(strings);
|
|
}
|
|
|
|
#else /* not glibc or glibc < 2.1 */
|
|
|
|
# if defined(sun) && defined(__SVR4)
|
|
# define HAVE_PSTACK
|
|
# endif
|
|
|
|
# if defined(HAVE_WALKCONTEXT) /* Solaris 9 & later */
|
|
|
|
# include <ucontext.h>
|
|
# include <signal.h>
|
|
# include <dlfcn.h>
|
|
# include <sys/elf.h>
|
|
|
|
#ifdef _LP64
|
|
# define ElfSym Elf64_Sym
|
|
#else
|
|
# define ElfSym Elf32_Sym
|
|
#endif
|
|
|
|
/* Called for each frame on the stack to print it's contents */
|
|
static int xorg_backtrace_frame(uintptr_t pc, int signo, void *arg)
|
|
{
|
|
Dl_info dlinfo;
|
|
ElfSym *dlsym;
|
|
char header[32];
|
|
int depth = *((int *) arg);
|
|
|
|
if (signo) {
|
|
char signame[SIG2STR_MAX];
|
|
|
|
if (sig2str(signo, signame) != 0) {
|
|
strcpy(signame, "unknown");
|
|
}
|
|
|
|
ErrorF("** Signal %d (%s)\n", signo, signame);
|
|
}
|
|
|
|
snprintf(header, sizeof(header), "%d: 0x%lx", depth, pc);
|
|
*((int *) arg) = depth + 1;
|
|
|
|
/* Ask system dynamic loader for info on the address */
|
|
if (dladdr1((void *) pc, &dlinfo, (void **) &dlsym, RTLD_DL_SYMENT)) {
|
|
unsigned long offset = pc - (uintptr_t) dlinfo.dli_saddr;
|
|
const char *symname;
|
|
|
|
if (offset < dlsym->st_size) { /* inside a function */
|
|
symname = dlinfo.dli_sname;
|
|
} else { /* found which file it was in, but not which function */
|
|
symname = "<section start>";
|
|
offset = pc - (uintptr_t)dlinfo.dli_fbase;
|
|
}
|
|
ErrorF("%s: %s:%s+0x%lx\n", header, dlinfo.dli_fname,
|
|
symname, offset);
|
|
|
|
} else {
|
|
/* Couldn't find symbol info from system dynamic loader, should
|
|
* probably poke elfloader here, but haven't written that code yet,
|
|
* so we just print the pc.
|
|
*/
|
|
ErrorF("%s\n", header);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
# endif /* HAVE_WALKCONTEXT */
|
|
|
|
# ifdef HAVE_PSTACK
|
|
static int xorg_backtrace_pstack(void) {
|
|
pid_t kidpid;
|
|
int pipefd[2];
|
|
|
|
if (pipe(pipefd) != 0) {
|
|
return -1;
|
|
}
|
|
|
|
kidpid = fork1();
|
|
|
|
if (kidpid == -1) {
|
|
/* ERROR */
|
|
return -1;
|
|
} else if (kidpid == 0) {
|
|
/* CHILD */
|
|
char parent[16];
|
|
|
|
seteuid(0);
|
|
close(STDIN_FILENO);
|
|
close(STDOUT_FILENO);
|
|
dup2(pipefd[1],STDOUT_FILENO);
|
|
closefrom(STDERR_FILENO);
|
|
|
|
snprintf(parent, sizeof(parent), "%d", getppid());
|
|
execle("/usr/bin/pstack", "pstack", parent, NULL);
|
|
exit(1);
|
|
} else {
|
|
/* PARENT */
|
|
char btline[256];
|
|
int kidstat;
|
|
int bytesread;
|
|
int done = 0;
|
|
|
|
close(pipefd[1]);
|
|
|
|
while (!done) {
|
|
bytesread = read(pipefd[0], btline, sizeof(btline) - 1);
|
|
|
|
if (bytesread > 0) {
|
|
btline[bytesread] = 0;
|
|
ErrorF("%s", btline);
|
|
}
|
|
else if ((bytesread < 0) ||
|
|
((errno != EINTR) && (errno != EAGAIN)))
|
|
done = 1;
|
|
}
|
|
close(pipefd[0]);
|
|
waitpid(kidpid, &kidstat, 0);
|
|
if (kidstat != 0)
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
# endif /* HAVE_PSTACK */
|
|
|
|
|
|
# if defined(HAVE_PSTACK) || defined(HAVE_WALKCONTEXT)
|
|
|
|
static __inline__ void xorg_backtrace(void) {
|
|
|
|
ErrorF("\nBacktrace:\n");
|
|
|
|
# ifdef HAVE_PSTACK
|
|
/* First try fork/exec of pstack - otherwise fall back to walkcontext
|
|
pstack is preferred since it can print names of non-exported functions */
|
|
|
|
if (xorg_backtrace_pstack() < 0)
|
|
# endif
|
|
{
|
|
# ifdef HAVE_WALKCONTEXT
|
|
ucontext_t u;
|
|
int depth = 1;
|
|
|
|
if (getcontext(&u) == 0)
|
|
walkcontext(&u, xorg_backtrace_frame, &depth);
|
|
else
|
|
# endif
|
|
Error("Failed to get backtrace info");
|
|
}
|
|
ErrorF("\n");
|
|
}
|
|
|
|
# else
|
|
|
|
/* Default fallback if we can't find any way to get a backtrace */
|
|
static __inline__ void xorg_backtrace(void) { return; }
|
|
|
|
# endif
|
|
#endif
|
|
|
|
/*
|
|
* xf86SigHandler --
|
|
* Catch unexpected signals and exit or continue cleanly.
|
|
*/
|
|
void
|
|
xf86SigHandler(int signo)
|
|
{
|
|
if ((signo == SIGILL) && xf86SigIllHandler) {
|
|
(*xf86SigIllHandler)();
|
|
/* Re-arm handler just in case we unexpectedly return here */
|
|
(void) signal(signo, xf86SigHandler);
|
|
return;
|
|
}
|
|
|
|
if (xf86SignalIntercept && (*xf86SignalIntercept < 0)) {
|
|
*xf86SignalIntercept = signo;
|
|
/* Re-arm handler just in case */
|
|
(void) signal(signo, xf86SigHandler);
|
|
return;
|
|
}
|
|
|
|
signal(signo,SIG_IGN);
|
|
xf86Info.caughtSignal = TRUE;
|
|
#ifdef XF86BIGFONT
|
|
XF86BigfontCleanup();
|
|
#endif
|
|
|
|
xorg_backtrace();
|
|
|
|
FatalError("Caught signal %d. Server aborting\n", signo);
|
|
}
|
|
|
|
static void
|
|
xf86ReleaseKeys(DeviceIntPtr pDev)
|
|
{
|
|
KeyClassPtr keyc = NULL;
|
|
KeySym *map = NULL;
|
|
xEvent ke;
|
|
int i = 0, j = 0, nevents = 0;
|
|
|
|
if (!pDev || !pDev->key)
|
|
return;
|
|
|
|
keyc = pDev->key;
|
|
map = keyc->curKeySyms.map;
|
|
|
|
/*
|
|
* 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->curKeySyms.minKeyCode, map = keyc->curKeySyms.map;
|
|
i < keyc->curKeySyms.maxKeyCode;
|
|
i++, map += keyc->curKeySyms.mapWidth) {
|
|
if (KeyPressed(i)) {
|
|
switch (*map) {
|
|
/* Don't release the lock keys */
|
|
case XK_Caps_Lock:
|
|
case XK_Shift_Lock:
|
|
case XK_Num_Lock:
|
|
case XK_Scroll_Lock:
|
|
case XK_Kana_Lock:
|
|
break;
|
|
default:
|
|
if (pDev == inputInfo.keyboard) {
|
|
ke.u.keyButtonPointer.time = GetTimeInMillis();
|
|
ke.u.keyButtonPointer.rootX = 0;
|
|
ke.u.keyButtonPointer.rootY = 0;
|
|
ke.u.u.type = KeyRelease;
|
|
ke.u.u.detail = i;
|
|
(*pDev->public.processInputProc) (&ke, pDev, 1);
|
|
}
|
|
else {
|
|
int sigstate = xf86BlockSIGIO ();
|
|
nevents = GetKeyboardEvents(xf86Events, pDev, KeyRelease, i);
|
|
for (j = 0; j < nevents; j++)
|
|
mieqEnqueue(pDev, xf86Events + j);
|
|
xf86UnblockSIGIO(sigstate);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* xf86VTSwitch --
|
|
* Handle requests for switching the vt.
|
|
*/
|
|
static void
|
|
xf86VTSwitch()
|
|
{
|
|
int i, prevSIGIO;
|
|
InputInfoPtr pInfo;
|
|
IHPtr ih;
|
|
|
|
#ifdef DEBUG
|
|
ErrorF("xf86VTSwitch()\n");
|
|
#endif
|
|
|
|
#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) {
|
|
|
|
#ifdef DEBUG
|
|
ErrorF("xf86VTSwitch: Leaving, xf86Exiting is %s\n",
|
|
BOOLTOSTRING((dispatchException & DE_TERMINATE) ? TRUE : FALSE));
|
|
#endif
|
|
#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
|
|
*/
|
|
pInfo = xf86InputDevs;
|
|
while (pInfo) {
|
|
if (pInfo->dev)
|
|
DisableDevice(pInfo->dev);
|
|
pInfo = pInfo->next;
|
|
}
|
|
xf86EnterServerState(SETUP);
|
|
for (i = 0; i < xf86NumScreens; i++)
|
|
xf86Screens[i]->LeaveVT(i, 0);
|
|
|
|
for (ih = InputHandlers; ih; ih = ih->next)
|
|
xf86DisableInputHandler(ih);
|
|
xf86AccessLeave(); /* We need this here, otherwise */
|
|
xf86AccessLeaveState(); /* console won't be restored */
|
|
|
|
if (!xf86VTSwitchAway()) {
|
|
/*
|
|
* switch failed
|
|
*/
|
|
|
|
#ifdef DEBUG
|
|
ErrorF("xf86VTSwitch: Leave failed\n");
|
|
#endif
|
|
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) {
|
|
xf86ReleaseKeys(pInfo->dev);
|
|
EnableDevice(pInfo->dev);
|
|
}
|
|
pInfo = pInfo->next;
|
|
}
|
|
/* XXX HACK */
|
|
xf86ReleaseKeys(inputInfo.keyboard);
|
|
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;
|
|
xf86Screens[i]->access = NULL;
|
|
xf86Screens[i]->busAccess = NULL;
|
|
}
|
|
if (xorgHWAccess)
|
|
xf86DisableIO();
|
|
}
|
|
} else {
|
|
|
|
#ifdef DEBUG
|
|
ErrorF("xf86VTSwitch: Entering\n");
|
|
#endif
|
|
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) {
|
|
xf86ReleaseKeys(pInfo->dev);
|
|
EnableDevice(pInfo->dev);
|
|
}
|
|
pInfo = pInfo->next;
|
|
}
|
|
/* XXX HACK */
|
|
xf86ReleaseKeys(inputInfo.keyboard);
|
|
|
|
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;
|
|
}
|
|
|
|
_X_EXPORT pointer
|
|
xf86AddInputHandler(int fd, InputHandlerProc proc, pointer data)
|
|
{
|
|
IHPtr ih = addInputHandler(fd, proc, data);
|
|
|
|
if (ih)
|
|
AddEnabledDevice(fd);
|
|
return ih;
|
|
}
|
|
|
|
_X_EXPORT 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);
|
|
}
|
|
|
|
_X_EXPORT 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;
|
|
}
|
|
|
|
_X_EXPORT 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;
|
|
}
|
|
|
|
_X_EXPORT void
|
|
xf86DisableInputHandler(pointer handler)
|
|
{
|
|
IHPtr ih;
|
|
|
|
if (!handler)
|
|
return;
|
|
|
|
ih = handler;
|
|
ih->enabled = FALSE;
|
|
if (ih->fd >= 0)
|
|
RemoveEnabledDevice(ih->fd);
|
|
}
|
|
|
|
_X_EXPORT void
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xf86DisableGeneralHandler(pointer handler)
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{
|
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IHPtr ih;
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|
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if (!handler)
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return;
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|
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ih = handler;
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ih->enabled = FALSE;
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if (ih->fd >= 0)
|
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RemoveGeneralSocket(ih->fd);
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}
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|
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_X_EXPORT void
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xf86EnableInputHandler(pointer handler)
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{
|
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IHPtr ih;
|
|
|
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if (!handler)
|
|
return;
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|
|
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ih = handler;
|
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ih->enabled = TRUE;
|
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if (ih->fd >= 0)
|
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AddEnabledDevice(ih->fd);
|
|
}
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|
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_X_EXPORT 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.
|
|
*/
|
|
_X_EXPORT 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
|
|
xf86ReloadInputDevs(int sig)
|
|
{
|
|
InputInfoPtr pInfo;
|
|
|
|
signal(sig, (void(*)(int))xf86ReloadInputDevs);
|
|
|
|
pInfo = xf86InputDevs;
|
|
while (pInfo) {
|
|
DisableDevice(pInfo->dev);
|
|
EnableDevice(pInfo->dev);
|
|
pInfo = pInfo->next;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
_X_EXPORT void
|
|
DDXRingBell(int volume, int pitch, int duration) {
|
|
xf86OSRingBell(volume, pitch, duration);
|
|
}
|