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
54struct 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
74struct 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
91void	fb_attach(struct fbdevice *, int);
92void	fb_setsize_obp(struct fbdevice *, int, int, int, int);
93void	fb_setsize_eeprom(struct fbdevice *, int, int, int);
94void	fb_setsize_pfour(struct fbdevice *);
95int	fb_is_console(int);
96#ifdef RASTERCONSOLE
97void	fbrcons_init(struct fbdevice *);
98int	fbrcons_rows(void);
99int	fbrcons_cols(void);
100#endif
101
102int	fb_pfour_id(volatile void *);
103int	fb_pfour_get_video(struct fbdevice *);
104void	fb_pfour_set_video(struct fbdevice *, int);
105