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      1 /*	$NetBSD: fbvar.h,v 1.13 2016/04/21 18:06:06 macallan 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 #include <dev/rcons/rcons.h>
     51 #include <dev/wscons/wsdisplayvar.h>
     52 #include <dev/rasops/rasops.h>
     53 
     54 struct fbdriver {
     55 	/* device unblank function (force kernel output to display) */
     56 	void	(*fbd_unblank)(device_t);
     57 	int	(*fbd_open)(dev_t, int, int, struct lwp *);
     58 	int	(*fbd_close)(dev_t, int, int, struct lwp *);
     59 	int	(*fbd_ioctl)(dev_t, u_long, void *, int, struct lwp *);
     60 	int	(*fbd_poll)(dev_t, int, struct lwp *);
     61 	paddr_t	(*fbd_mmap)(dev_t, off_t, int);
     62 	int	(*fbd_kqfilter)(dev_t, struct knote *);
     63 #ifdef notyet
     64 	/*
     65 	 * XXX redundant idea? these can hook into rasops on a per-device
     66 	 * basis like: fb_rinfo.ri_ops.copycols = ....;
     67 	 */
     68 	void	(*fbd_wrrop)();		/* `write region' rasterop */
     69 	void	(*fbd_cprop)();		/* `copy region' rasterop */
     70 	void	(*fbd_clrop)();		/* `clear region' rasterop */
     71 #endif
     72 };
     73 
     74 struct fbdevice {
     75 	int	fb_major;		/* XXX */
     76 	struct	fbtype fb_type;		/* what it says */
     77 	void *	fb_pixels;		/* display RAM */
     78 	int	fb_linebytes;		/* bytes per display line */
     79 
     80 	struct	fbdriver *fb_driver;	/* pointer to driver */
     81 	device_t	fb_device;	/* parameter for fbd_unblank */
     82 
     83 	int	fb_flags;		/* misc. flags */
     84 #define	FB_FORCE	0x00000001	/* force device into /dev/fb */
     85 #define	FB_PFOUR	0x00010000	/* indicates fb is a pfour fb */
     86 #define FB_USERMASK	(FB_FORCE)	/* flags that the user can set */
     87 
     88 	volatile u_int32_t *fb_pfour;	/* pointer to pfour register */
     89 };
     90 
     91 void	fb_attach(struct fbdevice *, int);
     92 void	fb_setsize_obp(struct fbdevice *, int, int, int, int);
     93 void	fb_setsize_eeprom(struct fbdevice *, int, int, int);
     94 void	fb_setsize_pfour(struct fbdevice *);
     95 int	fb_is_console(int);
     96 #ifdef RASTERCONSOLE
     97 void	fbrcons_init(struct fbdevice *);
     98 int	fbrcons_rows(void);
     99 int	fbrcons_cols(void);
    100 #endif
    101 
    102 int	fb_pfour_id(volatile void *);
    103 int	fb_pfour_get_video(struct fbdevice *);
    104 void	fb_pfour_set_video(struct fbdevice *, int);
    105