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Member "xorg-server-1.20.5/hw/xfree86/os-support/bsd/bsd_VTsw.c" (30 May 2019, 2985 Bytes) of package /linux/misc/xorg-server-1.20.5.tar.bz2:


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    1 /*
    2  * Derived from VTsw_usl.c which is
    3  * Copyright 1993 by David Wexelblat <dwex@goblin.org>
    4  * by S_ren Schmidt (sos@login.dkuug.dk)
    5  *
    6  * Permission to use, copy, modify, distribute, and sell this software and its
    7  * documentation for any purpose is hereby granted without fee, provided that
    8  * the above copyright notice appear in all copies and that both that
    9  * copyright notice and this permission notice appear in supporting
   10  * documentation, and that the name of David Wexelblat not be used in
   11  * advertising or publicity pertaining to distribution of the software without
   12  * specific, written prior permission.  David Wexelblat makes no representations
   13  * about the suitability of this software for any purpose.  It is provided
   14  * "as is" without express or implied warranty.
   15  *
   16  * DAVID WEXELBLAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
   17  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
   18  * EVENT SHALL DAVID WEXELBLAT BE LIABLE FOR ANY SPECIAL, INDIRECT OR
   19  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
   20  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
   21  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
   22  * PERFORMANCE OF THIS SOFTWARE.
   23  *
   24  */
   25 
   26 #ifdef HAVE_XORG_CONFIG_H
   27 #include <xorg-config.h>
   28 #endif
   29 
   30 #include <X11/X.h>
   31 #include "xf86.h"
   32 #include "xf86Priv.h"
   33 #include "xf86_OSlib.h"
   34 
   35 /*
   36  * Handle the VT-switching interface for OSs that use USL-style ioctl()s
   37  * (the bsd, sysv, sco, and linux subdirs).
   38  */
   39 
   40 /*
   41  * This function is the signal handler for the VT-switching signal.  It
   42  * is only referenced inside the OS-support layer.
   43  */
   44 void
   45 xf86VTRequest(int sig)
   46 {
   47 #if defined (SYSCONS_SUPPORT) || defined (PCVT_SUPPORT)
   48     if (xf86Info.consType == SYSCONS || xf86Info.consType == PCVT) {
   49         xf86Info.vtRequestsPending = TRUE;
   50     }
   51 #endif
   52     return;
   53 }
   54 
   55 Bool
   56 xf86VTSwitchPending()
   57 {
   58 #if defined (SYSCONS_SUPPORT) || defined (PCVT_SUPPORT)
   59     if (xf86Info.consType == SYSCONS || xf86Info.consType == PCVT) {
   60         return xf86Info.vtRequestsPending ? TRUE : FALSE;
   61     }
   62 #endif
   63     return FALSE;
   64 }
   65 
   66 Bool
   67 xf86VTSwitchAway()
   68 {
   69 #if defined (SYSCONS_SUPPORT) || defined (PCVT_SUPPORT)
   70     if (xf86Info.consType == SYSCONS || xf86Info.consType == PCVT) {
   71         xf86Info.vtRequestsPending = FALSE;
   72         if (ioctl(xf86Info.consoleFd, VT_RELDISP, 1) < 0)
   73             return FALSE;
   74         else
   75             return TRUE;
   76     }
   77 #endif
   78     return FALSE;
   79 }
   80 
   81 Bool
   82 xf86VTSwitchTo()
   83 {
   84 #if defined (SYSCONS_SUPPORT) || defined (PCVT_SUPPORT)
   85     if (xf86Info.consType == SYSCONS || xf86Info.consType == PCVT) {
   86         xf86Info.vtRequestsPending = FALSE;
   87         if (ioctl(xf86Info.consoleFd, VT_RELDISP, VT_ACKACQ) < 0)
   88             return FALSE;
   89         else
   90             return TRUE;
   91     }
   92 #endif
   93     return TRUE;
   94 }
   95 
   96 Bool
   97 xf86VTActivate(int vtno)
   98 {
   99     if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, vtno) < 0) {
  100         return FALSE;
  101     }
  102     return TRUE;
  103 }