"Fossies" - the Fresh Open Source Software Archive

Member "xorg-server-1.20.8/hw/xfree86/os-support/solaris/sun_vid.c" (29 Mar 2020, 4038 Bytes) of package /linux/misc/xorg-server-1.20.8.tar.bz2:


As a special service "Fossies" has tried to format the requested source page into HTML format using (guessed) C and C++ source code syntax highlighting (style: standard) with prefixed line numbers and code folding option. Alternatively you can here view or download the uninterpreted source code file. For more information about "sun_vid.c" see the Fossies "Dox" file reference documentation and the latest Fossies "Diffs" side-by-side code changes report: 1.20.7_vs_1.20.8.

    1 /*
    2  * Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany
    3  * Copyright 1993 by David Wexelblat <dwex@goblin.org>
    4  * Copyright 1999 by David Holland <davidh@iquest.net>
    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 copyright
    9  * notice and this permission notice appear in supporting documentation, and
   10  * that the names of the copyright holders not be used in advertising or
   11  * publicity pertaining to distribution of the software without specific,
   12  * written prior permission.  The copyright holders make no representations
   13  * about the suitability of this software for any purpose.  It is provided "as
   14  * is" without express or implied warranty.
   15  *
   16  * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
   17  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT
   18  * SHALL THE COPYRIGHT HOLDERS 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 PERFORMANCE
   22  * OF THIS SOFTWARE.
   23  *
   24  */
   25 /* Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved.
   26  *
   27  * Permission is hereby granted, free of charge, to any person obtaining a
   28  * copy of this software and associated documentation files (the "Software"),
   29  * to deal in the Software without restriction, including without limitation
   30  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   31  * and/or sell copies of the Software, and to permit persons to whom the
   32  * Software is furnished to do so, subject to the following conditions:
   33  *
   34  * The above copyright notice and this permission notice (including the next
   35  * paragraph) shall be included in all copies or substantial portions of the
   36  * Software.
   37  *
   38  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   39  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   40  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
   41  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   42  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
   43  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
   44  * DEALINGS IN THE SOFTWARE.
   45  */
   46 
   47 #ifdef HAVE_XORG_CONFIG_H
   48 #include <xorg-config.h>
   49 #endif
   50 
   51 #include <sys/types.h>          /* get __x86 definition if not set by compiler */
   52 
   53 #if defined(__i386__) || defined(__i386) || defined(__x86)
   54 #define _NEED_SYSI86
   55 #endif
   56 #include "xf86.h"
   57 #include "xf86Priv.h"
   58 #include "xf86_OSlib.h"
   59 #include "xf86OSpriv.h"
   60 #include <sys/mman.h>
   61 
   62 /***************************************************************************/
   63 /* Video Memory Mapping section                        */
   64 /***************************************************************************/
   65 
   66 _X_HIDDEN void
   67 xf86OSInitVidMem(VidMemInfoPtr pVidMem)
   68 {
   69     pVidMem->initialised = TRUE;
   70 }
   71 
   72 /***************************************************************************/
   73 /* I/O Permissions section                         */
   74 /***************************************************************************/
   75 
   76 void
   77 xf86OSInputThreadInit(void)
   78 {
   79     /*
   80      * Need to enable in input thread as well, as Solaris kernel tracks
   81      * IOPL per-thread and doesn't inherit when creating a new thread.
   82      */
   83     xf86EnableIO();
   84 }
   85 
   86 Bool
   87 xf86EnableIO(void)
   88 {
   89 #if defined(__i386__) || defined(__i386) || defined(__x86)
   90     if (sysi86(SI86V86, V86SC_IOPL, PS_IOPL) < 0) {
   91         xf86Msg(X_WARNING, "xf86EnableIOPorts: Failed to set IOPL for I/O\n");
   92         return FALSE;
   93     }
   94 #endif                          /* i386 */
   95     return TRUE;
   96 }
   97 
   98 void
   99 xf86DisableIO(void)
  100 {
  101 #if defined(__i386__) || defined(__i386) || defined(__x86)
  102     sysi86(SI86V86, V86SC_IOPL, 0);
  103 #endif                          /* i386 */
  104 }