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fbvar.h revision 1.4 
      1 /*	$NetBSD: fbvar.h,v 1.4 1996/12/17 21:10:42 gwr Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1992, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * This software was developed by the Computer Systems Engineering group
      8  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
      9  * contributed to Berkeley.
     10  *
     11  * All advertising materials mentioning features or use of this software
     12  * must display the following acknowledgement:
     13  *	This product includes software developed by the University of
     14  *	California, Lawrence Berkeley Laboratory.
     15  *
     16  * Redistribution and use in source and binary forms, with or without
     17  * modification, are permitted provided that the following conditions
     18  * are met:
     19  * 1. Redistributions of source code must retain the above copyright
     20  *    notice, this list of conditions and the following disclaimer.
     21  * 2. Redistributions in binary form must reproduce the above copyright
     22  *    notice, this list of conditions and the following disclaimer in the
     23  *    documentation and/or other materials provided with the distribution.
     24  * 3. All advertising materials mentioning features or use of this software
     25  *    must display the following acknowledgement:
     26  *	This product includes software developed by the University of
     27  *	California, Berkeley and its contributors.
     28  * 4. Neither the name of the University nor the names of its contributors
     29  *    may be used to endorse or promote products derived from this software
     30  *    without specific prior written permission.
     31  *
     32  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     33  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     34  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     35  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     36  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     37  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     38  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     39  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     40  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     41  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     42  * SUCH DAMAGE.
     43  *
     44  *	@(#)fbvar.h	8.1 (Berkeley) 6/11/93
     45  */
     46 
     47 /*
     48  * Frame buffer variables.  All frame buffer drivers must provide the
     49  * following in order to participate.
     50  */
     51 
     52 struct fbcmap;
     53 
     54 struct fbdevice {
     55 	struct	fbtype fb_fbtype;	/* see fbio.h */
     56 	struct	fbdriver *fb_driver;	/* pointer to driver */
     57 	void *fb_private;		/* for fb driver use */
     58 	char *fb_name;			/* i.e. sc_dev.dx_name */
     59 
     60 	caddr_t	fb_pixels;		/* display RAM */
     61 	int	fb_linebytes;		/* bytes per display line */
     62 
     63 	/*
     64 	 * XXX - The "Raster console" stuff could be stored
     65 	 * in the driver specific structure at fb_private
     66 	 * if needed.
     67 	 */
     68 };
     69 
     70 struct fbdriver {
     71 	/* These avoid the need to know our major number. */
     72 	int 	(*fbd_open) __P((dev_t, int, int, struct proc *));
     73 	int 	(*fbd_close) __P((dev_t, int, int, struct proc *));
     74 	int 	(*fbd_mmap) __P((dev_t, int, int));
     75 	/* These are the internal ioctl functions */
     76 	int 	(*fbd_gattr) __P((struct fbdevice *,  void *));
     77 	int 	(*fbd_gvideo) __P((struct fbdevice *, void *));
     78 	int 	(*fbd_svideo) __P((struct fbdevice *, void *));
     79 	int 	(*fbd_getcmap) __P((struct fbdevice *, void *));
     80 	int 	(*fbd_putcmap) __P((struct fbdevice *, void *));
     81 };
     82 
     83 int 	fbioctlfb __P((struct fbdevice *, u_long, caddr_t));
     84 
     85 void	fb_attach __P((struct fbdevice *, int));
     86 int 	fb_noioctl __P((struct fbdevice *, void *));
     87 void	fb_unblank __P((void));
     88 
     89