hw/xfree86/os-support/bsd/sparc64_video.c

   1 /*
   2  * Copyright 1992 by Rich Murphey <Rich@Rice.edu>
   3  * Copyright 1993 by David Wexelblat <dwex@goblin.org>
   4  *
   5  * Permission to use, copy, modify, distribute, and sell this software and its
   6  * documentation for any purpose is hereby granted without fee, provided that
   7  * the above copyright notice appear in all copies and that both that
   8  * copyright notice and this permission notice appear in supporting
   9  * documentation, and that the names of Rich Murphey and David Wexelblat
  10  * not be used in advertising or publicity pertaining to distribution of
  11  * the software without specific, written prior permission.  Rich Murphey and
  12  * David Wexelblat make no representations about the suitability of this
  13  * software for any purpose.  It is provided "as is" without express or
  14  * implied warranty.
  15  *
  16  * RICH MURPHEY AND DAVID WEXELBLAT DISCLAIM ALL WARRANTIES WITH REGARD TO
  17  * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
  18  * FITNESS, IN NO EVENT SHALL RICH MURPHEY OR DAVID WEXELBLAT BE LIABLE FOR
  19  * ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
  20  * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
  21  * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  22  * CONNECTION WITH THE USE OR 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
  34 #include "xf86_OSlib.h"
  35 #include "xf86OSpriv.h"
  36
  37 /***************************************************************************/
  38 /* Video Memory Mapping section                                            */
  39 /***************************************************************************/
  40
  41 static pointer sparc64MapVidMem(int, unsigned long, unsigned long, int);
  42 static void sparc64UnmapVidMem(int, pointer, unsigned long);
  43
  44 void
  45 xf86OSInitVidMem(VidMemInfoPtr pVidMem)
  46 {
  47     pVidMem->linearSupported = TRUE;
  48     pVidMem->mapMem = sparc64MapVidMem;
  49     pVidMem->unmapMem = sparc64UnmapVidMem;
  50     pVidMem->initialised = TRUE;
  51 }
  52
  53 static pointer
  54 sparc64MapVidMem(int ScreenNum, unsigned long Base, unsigned long Size,
  55                  int flags)
  56 {
  57     int fd = xf86Info.consoleFd;
  58     pointer base;
  59
  60 #ifdef DEBUG
  61     xf86MsgVerb(X_INFO, 3, "mapVidMem %lx, %lx, fd = %d", Base, Size, fd);
  62 #endif
  63
  64     base = mmap(0, Size,
  65                 (flags & VIDMEM_READONLY) ?
  66                 PROT_READ : (PROT_READ | PROT_WRITE), MAP_SHARED, fd, Base);
  67     if (base == MAP_FAILED)
  68         FatalError("%s: could not mmap screen [s=%x,a=%x] (%s)",
  69                    "xf86MapVidMem", Size, Base, strerror(errno));
  70     return base;
  71 }
  72
  73 static void
  74 sparc64UnmapVidMem(int ScreenNum, pointer Base, unsigned long Size)
  75 {
  76     munmap(Base, Size);
  77 }
  78
  79 int
  80 xf86ReadBIOS(unsigned long Base, unsigned long Offset, unsigned char *Buf,
  81              int Len)
  82 {
  83
  84     return 0;
  85 }