/*
   (c) Copyright 2000-2002  convergence integrated media GmbH.
   (c) Copyright 2002       convergence GmbH.
   
   All rights reserved.

   Written by Denis Oliver Kropp <dok@directfb.org>,
              Andreas Hundt <andi@fischlustig.de> and
              Sven Neumann <sven@convergence.de>.

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.

   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with this library; if not, write to the
   Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.
*/

#ifndef __CORE__FBDEV_H__
#define __CORE__FBDEV_H__

#include <linux/fb.h>

#include <core/system.h>

#include <core/fusion/reactor.h>

typedef struct {
     /* fbdev fixed screeninfo, contains infos about memory and type of card */
     struct fb_fix_screeninfo fix;

     VideoMode                *modes;        /* linked list of valid
                                                video modes */
     VideoMode                *current_mode; /* current video mode */

     struct fb_var_screeninfo current_var;   /* fbdev variable screeninfo
                                                set by DirectFB */
     struct fb_var_screeninfo orig_var;      /* fbdev variable screeninfo
                                                before DirectFB was started */
     struct fb_cmap           orig_cmap;     /* original palette */

     struct fb_cmap           current_cmap;  /* our copy of the cmap */

     struct fb_cmap           temp_cmap;     /* scratch */

     FusionReactor           *rpc_reactor;   /* ioctl rpc */
     FusionSkirmish           rpc_lock;      /* lock rpc "channel" */
     int                      rpc_ret;       /* return value of ioctl */
} FBDevShared;

typedef struct {
     FBDevShared             *shared;

     /* virtual framebuffer address */
     void                    *framebuffer_base;
     
     int                      fd;            /* file descriptor for /dev/fb */
} FBDev;

extern FBDev *dfb_fbdev;

/*
 * core init function, opens /dev/fb, get fbdev screeninfo
 * disables font acceleration, reads mode list
 */
DFBResult dfb_fbdev_initialize();
DFBResult dfb_fbdev_join();

/*
 * deinitializes DirectFB fbdev stuff and restores fbdev settings
 */
DFBResult dfb_fbdev_shutdown( bool emergency );
DFBResult dfb_fbdev_leave( bool emergency );

#endif