libdrm/xf86drmCompat.c


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/* xf86drmCompat.c -- User-level interface to old DRM device drivers
 *
 * Copyright 2002 Tungsten Graphics, Inc., Cedar Park, Texas.
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *
 * Backwards compatability modules broken out by:
 *   Jens Owen <jens@tungstengraphics.com>
 *
 */
/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/xf86drmCompat.c,v 1.1 2002/10/30 12:52:33 alanh Exp $ */

#ifdef XFree86Server
# include "xf86.h"
# include "xf86_OSproc.h"
# include "xf86_ansic.h"
# define _DRM_MALLOC xalloc
# define _DRM_FREE   xfree
# ifndef XFree86LOADER
#  include <sys/mman.h>
# endif
#else
# include <stdio.h>
# include <stdlib.h>
# include <unistd.h>
# include <string.h>
# include <ctype.h>
# include <fcntl.h>
# include <errno.h>
# include <signal.h>
# include <sys/types.h>
# include <sys/ioctl.h>
# include <sys/mman.h>
# include <sys/time.h>
# ifdef DRM_USE_MALLOC
#  define _DRM_MALLOC malloc
#  define _DRM_FREE   free
extern int xf86InstallSIGIOHandler(int fd, void (*f)(int, void *), void *);
extern int xf86RemoveSIGIOHandler(int fd);
# else
#  include <X11/Xlibint.h>
#  define _DRM_MALLOC Xmalloc
#  define _DRM_FREE   Xfree
# endif
#endif

/* Not all systems have MAP_FAILED defined */
#ifndef MAP_FAILED
#define MAP_FAILED ((void *)-1)
#endif

#ifdef __linux__
#include <sys/sysmacros.h>	/* for makedev() */
#endif
#include "xf86drm.h"
#include "xf86drmCompat.h"
#include "drm.h"
#include "mga_drm.h"
#include "r128_drm.h"
#include <inttypes.h>		/* for int64_t & friends */
#include "radeon_drm.h"
#ifndef __FreeBSD__
#include "sis_drm.h"
#include "i810_drm.h"
#include "i830_drm.h"
#endif

/* WARNING: Do not change, or add, anything to this file.  It is only provided
 * for binary backwards compatability with the old driver specific DRM
 * extensions used before XFree86 4.3.
 */

#ifndef __FreeBSD__
/* I810 */

Bool drmI810CleanupDma(int driSubFD)
{
   drm_i810_init_t init;
   
   memset(&init, 0, sizeof(drm_i810_init_t));
   init.func = I810_CLEANUP_DMA;
   
   if(ioctl(driSubFD, DRM_IOCTL_I810_INIT, &init)) {
      return 0; /* FALSE */
   }
   
   return 1; /* TRUE */
}

Bool drmI810InitDma(int driSubFD, drmCompatI810Init *info)
{
   drm_i810_init_t init;
   
   memset(&init, 0, sizeof(drm_i810_init_t));

   init.func = I810_INIT_DMA;
   init.mmio_offset = info->mmio_offset;
   init.buffers_offset = info->buffers_offset;
   init.ring_start = info->start;
   init.ring_end = info->end;
   init.ring_size = info->size;
   init.sarea_priv_offset = info->sarea_off;
   init.front_offset = info->front_offset;
   init.back_offset = info->back_offset;
   init.depth_offset = info->depth_offset;
   init.overlay_offset = info->overlay_offset;
   init.overlay_physical = info->overlay_physical;
   init.w = info->w;
   init.h = info->h;
   init.pitch = info->pitch;
   init.pitch_bits = info->pitch_bits;

   if(ioctl(driSubFD, DRM_IOCTL_I810_INIT, &init)) {
      return 0; /* FALSE */
   }
   return 1; /* TRUE */
}
#endif /* __FreeBSD__ */

/* Mga */

#define MGA_IDLE_RETRY		2048

int drmMGAInitDMA( int fd, drmCompatMGAInit *info )
{
   drm_mga_init_t init;

   memset( &init, 0, sizeof(drm_mga_init_t) );

   init.func			= MGA_INIT_DMA;

   init.sarea_priv_offset	= info->sarea_priv_offset;
   init.sgram			= info->sgram;