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fbvar.h revision 1.7 
      1 /*	$NetBSD: fbvar.h,v 1.7 2003/08/07 16:31:24 agc 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. Neither the name of the University nor the names of its contributors
     25  *    may be used to endorse or promote products derived from this software
     26  *    without specific prior written permission.
     27  *
     28  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     29  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     30  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     31  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     32  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     33  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     34  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     35  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     36  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     37  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     38  * SUCH DAMAGE.
     39  *
     40  *	@(#)fbvar.h	8.1 (Berkeley) 6/11/93
     41  */
     42 
     43 /*
     44  * Frame buffer variables.  All frame buffer drivers must provide the
     45  * following in order to participate.
     46  */
     47 
     48 #include <sys/event.h>
     49 
     50 #ifdef RASTERCONSOLE
     51 #include <dev/rcons/rcons.h>
     52 #include <dev/wscons/wsdisplayvar.h>
     53 #include <dev/rasops/rasops.h>
     54 #endif
     55 
     56 struct fbdriver {
     57 	/* device unblank function (force kernel output to display) */
     58 	void	(*fbd_unblank)(struct device *);
     59 	int	(*fbd_open)(dev_t, int, int, struct proc *);
     60 	int	(*fbd_close)(dev_t, int, int, struct proc *);
     61 	int	(*fbd_ioctl)(dev_t, u_long, caddr_t, int, struct proc *);
     62 	int	(*fbd_poll)(dev_t, int, struct proc *);
     63 	paddr_t	(*fbd_mmap)(dev_t, off_t, int);
     64 	int	(*fbd_kqfilter)(dev_t, struct knote *);
     65 #ifdef notyet
     66 	/*
     67 	 * XXX redundant idea? these can hook into rasops on a per-device
     68 	 * basis like: fb_rinfo.ri_ops.copycols = ....;
     69 	 */
     70 	void	(*fbd_wrrop)();		/* `write region' rasterop */
     71 	void	(*fbd_cprop)();		/* `copy region' rasterop */
     72 	void	(*fbd_clrop)();		/* `clear region' rasterop */
     73 #endif
     74 };
     75 
     76 struct fbdevice {
     77 	int	fb_major;		/* XXX */
     78 	struct	fbtype fb_type;		/* what it says */
     79 	caddr_t	fb_pixels;		/* display RAM */
     80 	int	fb_linebytes;		/* bytes per display line */
     81 
     82 	struct	fbdriver *fb_driver;	/* pointer to driver */
     83 	struct	device *fb_device;	/* parameter for fbd_unblank */
     84 
     85 	int	fb_flags;		/* misc. flags */
     86 #define	FB_FORCE	0x00000001	/* force device into /dev/fb */
     87 #define	FB_PFOUR	0x00010000	/* indicates fb is a pfour fb */
     88 #define FB_USERMASK	(FB_FORCE)	/* flags that the user can set */
     89 
     90 	volatile u_int32_t *fb_pfour;	/* pointer to pfour register */
     91 
     92 #ifdef RASTERCONSOLE
     93 	/* Raster console emulator state */
     94 	struct	rconsole fb_rcons;
     95 	struct	rasops_info fb_rinfo;
     96 #endif
     97 };
     98 
     99 void	fb_attach(struct fbdevice *, int);
    100 void	fb_setsize_obp(struct fbdevice *, int, int, int, int);
    101 void	fb_setsize_eeprom(struct fbdevice *, int, int, int);
    102 void	fb_setsize_pfour(struct fbdevice *);
    103 int	fb_is_console(int);
    104 #ifdef RASTERCONSOLE
    105 void	fbrcons_init(struct fbdevice *);
    106 int	fbrcons_rows(void);
    107 int	fbrcons_cols(void);
    108 #endif
    109 
    110 int	fb_pfour_id(volatile void *);
    111 int	fb_pfour_get_video(struct fbdevice *);
    112 void	fb_pfour_set_video(struct fbdevice *, int);
    113