Home | History | Annotate | Line # | Download | only in dev
fbvar.h revision 1.7 
      1 /*	$NetBSD: fbvar.h,v 1.7 2002/10/23 09:12:26 jdolecek 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 #include <sys/event.h>		/* for struct knote */
     48 
     49 /*
     50  * Frame buffer variables.  All frame buffer drivers must provide the
     51  * following in order to participate.
     52  */
     53 
     54 struct fbcmap;
     55 
     56 struct fbdevice {
     57 	struct	fbtype fb_fbtype;	/* see fbio.h */
     58 	struct	fbdriver *fb_driver;	/* pointer to driver */
     59 	void *fb_private;		/* for fb driver use */
     60 	char *fb_name;			/* i.e. sc_dev.dx_name */
     61 
     62 	caddr_t	fb_pixels;		/* display RAM */
     63 	int	fb_linebytes;		/* bytes per display line */
     64 
     65 	int	fb_flags;		/* copy of cf_flags */
     66 
     67 	/* This points to the P4 register if the FB has one. */
     68 	volatile u_int32_t *fb_pfour;
     69 
     70 	/*
     71 	 * XXX - The "Raster console" stuff could be stored
     72 	 * in the driver specific structure at fb_private
     73 	 * if needed.
     74 	 */
     75 };
     76 
     77 struct fbdriver {
     78 	/* These avoid the need to know our major number. */
     79 	int 	(*fbd_open) __P((dev_t, int, int, struct proc *));
     80 	int 	(*fbd_close) __P((dev_t, int, int, struct proc *));
     81 	paddr_t	(*fbd_mmap) __P((dev_t, off_t, int));
     82 	int	(*fbd_kqfilter) __P((dev_t, struct knote *));
     83 	/* These are the internal ioctl functions */
     84 	int 	(*fbd_gattr) __P((struct fbdevice *,  void *));
     85 	int 	(*fbd_gvideo) __P((struct fbdevice *, void *));
     86 	int 	(*fbd_svideo) __P((struct fbdevice *, void *));
     87 	int 	(*fbd_getcmap) __P((struct fbdevice *, void *));
     88 	int 	(*fbd_putcmap) __P((struct fbdevice *, void *));
     89 };
     90 
     91 int 	fbioctlfb __P((struct fbdevice *, u_long, caddr_t));
     92 
     93 void	fb_attach __P((struct fbdevice *, int));
     94 int 	fb_noioctl __P((struct fbdevice *, void *));
     95 void	fb_unblank __P((void));
     96 
     97 void	fb_eeprom_setsize  __P((struct fbdevice *));
     98 
     99 int 	fb_pfour_id __P((void *));
    100 int 	fb_pfour_get_video __P((struct fbdevice *));
    101 void	fb_pfour_set_video __P((struct fbdevice *, int));
    102 
    103 void	fb_pfour_setsize __P((struct fbdevice *));
    104 
    105 /* This comes from enable.c */
    106 void	enable_video __P((int));
    107