799 lines
20 KiB
C
799 lines
20 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 <X11/keysym.h>
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#ifdef XFreeXDGA
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#include "dgaproc.h"
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#endif
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#include <X11/extensions/XI.h>
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#include <X11/extensions/XIproto.h>
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#include "inputstr.h"
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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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#include "xkbsrv.h"
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#include "xkbstr.h"
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#ifdef DPMSExtension
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#include <X11/extensions/dpmsconst.h>
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#include "dpmsproc.h"
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#endif
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#include "xf86platformBus.h"
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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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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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Bool is_input;
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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(void)
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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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void
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SetTimeSinceLastInputEvent(void)
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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(void)
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{
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int x, y;
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mieqProcessInputEvents();
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/* FIXME: This is a problem if we have multiple pointers */
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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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/*
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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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DebugF("ProcessActionEvent(%d,%x)\n", (int) action, arg);
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switch (action) {
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case ACTION_TERMINATE:
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if (!xf86Info.dontZap) {
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xf86Msg(X_INFO, "Server zapped. Shutting down.\n");
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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_SWITCHSCREEN:
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if (VTSwitchEnabled && !xf86Info.dontVTSwitch && arg) {
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int vtno = *((int *) arg);
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if (vtno != xf86Info.vtno) {
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if (!xf86VTActivate(vtno)) {
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ErrorF("Failed to switch from vt%02d to vt%02d: %s\n",
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xf86Info.vtno, vtno, strerror(errno));
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}
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}
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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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if (!xf86VTActivate(xf86Info.vtno + 1)) {
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/* If first try failed, assume this is the last VT and
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* try wrapping around to the first vt.
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*/
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if (!xf86VTActivate(1)) {
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ErrorF("Failed to switch from vt%02d to next vt: %s\n",
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xf86Info.vtno, strerror(errno));
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}
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}
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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 (!xf86VTActivate(xf86Info.vtno - 1)) {
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/* Don't know what the maximum VT is, so can't wrap around */
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ErrorF("Failed to switch from vt%02d to previous vt: %s\n",
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xf86Info.vtno, strerror(errno));
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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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/*
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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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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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OsBlockSIGIO();
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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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pInfo->read_input(pInfo);
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OsReleaseSIGIO();
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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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if (err >= 0) { /* we don't want the handlers called if select() */
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IHPtr ih, ih_tmp; /* returned with an error condition, do we? */
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nt_list_for_each_entry_safe(ih, ih_tmp, InputHandlers, 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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if (xf86VTSwitchPending())
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xf86VTSwitch();
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}
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/*
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* xf86SigioReadInput --
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* signal handler for the SIGIO signal.
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*/
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static void
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xf86SigioReadInput(int fd, void *closure)
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{
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int errno_save = errno;
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InputInfoPtr pInfo = closure;
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pInfo->read_input(pInfo);
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errno = errno_save;
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}
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/*
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* xf86AddEnabledDevice --
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*
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*/
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void
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xf86AddEnabledDevice(InputInfoPtr pInfo)
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{
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if (!xf86InstallSIGIOHandler(pInfo->fd, xf86SigioReadInput, pInfo)) {
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AddEnabledDevice(pInfo->fd);
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}
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}
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/*
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* xf86RemoveEnabledDevice --
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*
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*/
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void
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xf86RemoveEnabledDevice(InputInfoPtr pInfo)
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{
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if (!xf86RemoveSIGIOHandler(pInfo->fd)) {
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RemoveEnabledDevice(pInfo->fd);
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}
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}
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static int *xf86SignalIntercept = NULL;
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void
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xf86InterceptSignals(int *signo)
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{
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if ((xf86SignalIntercept = signo))
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*signo = -1;
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}
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static void (*xf86SigIllHandler) (void) = NULL;
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void
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xf86InterceptSigIll(void (*sigillhandler) (void))
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{
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xf86SigIllHandler = sigillhandler;
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}
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/*
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* xf86SigWrapper --
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* Catch unexpected signals and exit or continue cleanly.
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*/
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int
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xf86SigWrapper(int signo)
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{
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if ((signo == SIGILL) && xf86SigIllHandler) {
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(*xf86SigIllHandler) ();
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return 0; /* continue */
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}
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if (xf86SignalIntercept && (*xf86SignalIntercept < 0)) {
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*xf86SignalIntercept = signo;
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return 0; /* continue */
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}
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xf86Info.caughtSignal = TRUE;
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return 1; /* abort */
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}
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/*
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* xf86PrintBacktrace --
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* Print a stack backtrace for debugging purposes.
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*/
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void
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xf86PrintBacktrace(void)
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{
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xorg_backtrace();
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}
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static void
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xf86ReleaseKeys(DeviceIntPtr pDev)
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{
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KeyClassPtr keyc;
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int i;
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if (!pDev || !pDev->key)
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return;
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keyc = pDev->key;
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/*
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* Hmm... here is the biggest hack of every time !
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* It may be possible that a switch-vt procedure has finished BEFORE
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* you released all keys neccessary to do this. That peculiar behavior
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* can fool the X-server pretty much, cause it assumes that some keys
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* were not released. TWM may stuck alsmost completly....
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* OK, what we are doing here is after returning from the vt-switch
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* exeplicitely unrelease all keyboard keys before the input-devices
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* are reenabled.
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*/
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for (i = keyc->xkbInfo->desc->min_key_code;
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i < keyc->xkbInfo->desc->max_key_code; i++) {
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if (key_is_down(pDev, i, KEY_POSTED)) {
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OsBlockSIGIO();
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QueueKeyboardEvents(pDev, KeyRelease, i, NULL);
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OsReleaseSIGIO();
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}
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}
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}
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/*
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* xf86VTSwitch --
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* Handle requests for switching the vt.
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*/
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static void
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xf86VTSwitch(void)
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{
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int i;
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InputInfoPtr pInfo;
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IHPtr ih;
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DebugF("xf86VTSwitch()\n");
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#ifdef XFreeXDGA
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if (!DGAVTSwitch())
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return;
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#endif
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/*
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* Since all screens are currently all in the same state it is sufficient
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* check the first. This might change in future.
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*/
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if (xf86VTOwner()) {
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DebugF("xf86VTSwitch: Leaving, xf86Exiting is %s\n",
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BOOLTOSTRING((dispatchException & DE_TERMINATE) ? TRUE : FALSE));
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#ifdef DPMSExtension
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if (DPMSPowerLevel != DPMSModeOn)
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DPMSSet(serverClient, DPMSModeOn);
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#endif
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for (i = 0; i < xf86NumScreens; i++) {
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if (!(dispatchException & DE_TERMINATE))
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if (xf86Screens[i]->EnableDisableFBAccess)
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(*xf86Screens[i]->EnableDisableFBAccess) (xf86Screens[i], FALSE);
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}
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/*
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* Keep the order: Disable Device > LeaveVT
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* EnterVT > EnableDevice
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*/
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for (ih = InputHandlers; ih; ih = ih->next) {
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if (ih->is_input)
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xf86DisableInputHandler(ih);
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else
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xf86DisableGeneralHandler(ih);
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}
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for (pInfo = xf86InputDevs; pInfo; pInfo = pInfo->next) {
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if (pInfo->dev) {
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if (!pInfo->dev->enabled)
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pInfo->flags |= XI86_DEVICE_DISABLED;
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xf86ReleaseKeys(pInfo->dev);
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ProcessInputEvents();
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DisableDevice(pInfo->dev, TRUE);
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}
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}
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OsBlockSIGIO();
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for (i = 0; i < xf86NumScreens; i++)
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xf86Screens[i]->LeaveVT(xf86Screens[i]);
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for (i = 0; i < xf86NumGPUScreens; i++)
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xf86GPUScreens[i]->LeaveVT(xf86GPUScreens[i]);
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|
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xf86AccessLeave(); /* We need this here, otherwise */
|
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|
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if (!xf86VTSwitchAway()) {
|
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/*
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* switch failed
|
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*/
|
|
|
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DebugF("xf86VTSwitch: Leave failed\n");
|
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xf86AccessEnter();
|
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for (i = 0; i < xf86NumScreens; i++) {
|
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if (!xf86Screens[i]->EnterVT(xf86Screens[i]))
|
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FatalError("EnterVT failed for screen %d\n", i);
|
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}
|
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for (i = 0; i < xf86NumGPUScreens; i++) {
|
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if (!xf86GPUScreens[i]->EnterVT(xf86GPUScreens[i]))
|
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FatalError("EnterVT failed for gpu screen %d\n", i);
|
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}
|
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if (!(dispatchException & DE_TERMINATE)) {
|
|
for (i = 0; i < xf86NumScreens; i++) {
|
|
if (xf86Screens[i]->EnableDisableFBAccess)
|
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(*xf86Screens[i]->EnableDisableFBAccess) (xf86Screens[i], TRUE);
|
|
}
|
|
}
|
|
dixSaveScreens(serverClient, SCREEN_SAVER_FORCER, ScreenSaverReset);
|
|
|
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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) {
|
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if (ih->is_input)
|
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xf86EnableInputHandler(ih);
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else
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xf86EnableGeneralHandler(ih);
|
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}
|
|
OsReleaseSIGIO();
|
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|
|
}
|
|
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) {
|
|
if (ih->is_input)
|
|
xf86EnableInputHandler(ih);
|
|
else
|
|
xf86EnableGeneralHandler(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);
|
|
ih->is_input = TRUE;
|
|
}
|
|
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;
|
|
}
|