xserver

xserver with xephyr scale patch
git clone https://git.neptards.moe/u3shit/xserver.git
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hurd_video.c (2859B)

      1 /*
      2  * Copyright 1997, 1998 by UCHIYAMA Yasushi
      3  *
      4  * Permission to use, copy, modify, distribute, and sell this software and its
      5  * documentation for any purpose is hereby granted without fee, provided that
      6  * the above copyright notice appear in all copies and that both that
      7  * copyright notice and this permission notice appear in supporting
      8  * documentation, and that the name of UCHIYAMA Yasushi not be used in
      9  * advertising or publicity pertaining to distribution of the software without
     10  * specific, written prior permission.  UCHIYAMA Yasushi makes no representations
     11  * about the suitability of this software for any purpose.  It is provided
     12  * "as is" without express or implied warranty.
     13  *
     14  * UCHIYAMA YASUSHI DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
     15  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
     16  * EVENT SHALL UCHIYAMA YASUSHI BE LIABLE FOR ANY SPECIAL, INDIRECT OR
     17  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
     18  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
     19  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
     20  * PERFORMANCE OF THIS SOFTWARE.
     21  *
     22  */
     23 
     24 #ifdef HAVE_XORG_CONFIG_H
     25 #include <xorg-config.h>
     26 #endif
     27 
     28 #include <mach.h>
     29 #include <device/device.h>
     30 #include <mach/machine/mach_i386.h>
     31 #include <hurd.h>
     32 
     33 #include <X11/X.h>
     34 #include "input.h"
     35 #include "scrnintstr.h"
     36 
     37 #include "xf86.h"
     38 #include "xf86Priv.h"
     39 #include "xf86_OSlib.h"
     40 #include "xf86OSpriv.h"
     41 
     42 /**************************************************************************
     43  * Video Memory Mapping section
     44  ***************************************************************************/
     45 
     46 /**************************************************************************
     47  * I/O Permissions section
     48  ***************************************************************************/
     49 
     50 /*
     51  * Due to conflicts with "compiler.h", don't rely on <sys/io.h> to declare
     52  * this.
     53  */
     54 extern int ioperm(unsigned long __from, unsigned long __num, int __turn_on);
     55 
     56 Bool
     57 xf86EnableIO()
     58 {
     59     if (ioperm(0, 0x10000, 1)) {
     60         FatalError("xf86EnableIO: ioperm() failed (%s)\n", strerror(errno));
     61         return FALSE;
     62     }
     63 #if 0
     64     /*
     65      * Trapping disabled for now, as some VBIOSes (mga-g450 notably) use these
     66      * ports, and the int10 wrapper is not emulating them. (Note that it's
     67      * effectively what happens in the Linux variant too, as iopl() is used
     68      * there, making the ioperm() meaningless.)
     69      *
     70      * Reenable this when int10 gets fixed.  */
     71     ioperm(0x40, 4, 0);         /* trap access to the timer chip */
     72     ioperm(0x60, 4, 0);         /* trap access to the keyboard controller */
     73 #endif
     74     return TRUE;
     75 }
     76 
     77 void
     78 xf86DisableIO()
     79 {
     80     ioperm(0, 0x10000, 0);
     81     return;
     82 }
     83 
     84 void
     85 xf86OSInitVidMem(VidMemInfoPtr pVidMem)
     86 {
     87     pVidMem->initialised = TRUE;
     88 }