xref: /freebsd/sys/dev/fb/vesa.h (revision dd41de95a84d979615a2ef11df6850622bf6184e)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 1998 Michael Smith and Kazutaka YOKOTA
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer as
12  *    the first lines of this file unmodified.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20  * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  *
28  * $FreeBSD$
29  */
30 
31 #ifndef _DEV_FB_VESA_H_
32 #define _DEV_FB_VESA_H_
33 
34 struct vesa_info
35 {
36     /* mandatory fields */
37     u_int8_t		v_sig[4];	/* VESA */
38     u_int16_t		v_version;	/* ver in BCD */
39     u_int32_t		v_oemstr;	/* OEM string */
40     u_int32_t		v_flags;	/* flags */
41 #define V_DAC8		(1<<0)
42 #define V_NONVGA	(1<<1)
43 #define V_SNOW		(1<<2)
44     u_int32_t		v_modetable;	/* modes */
45     u_int16_t		v_memsize;	/* in 64K */
46     /* 2.0 */
47     u_int16_t		v_revision;	/* software rev */
48     u_int32_t		v_venderstr;	/* vender */
49     u_int32_t		v_prodstr;	/* product name */
50     u_int32_t		v_revstr;	/* product rev */
51     u_int8_t		v_strach[222];
52     u_int8_t		v_oemdata[256];
53 } __packed;
54 
55 struct vesa_mode
56 {
57     /* mandatory fields */
58     u_int16_t		v_modeattr;
59 #define V_MODESUPP	(1<<0)	/* VESA mode attributes */
60 #define V_MODEOPTINFO	(1<<1)
61 #define V_MODEBIOSOUT	(1<<2)
62 #define V_MODECOLOR	(1<<3)
63 #define V_MODEGRAPHICS	(1<<4)
64 #define V_MODENONVGA	(1<<5)
65 #define V_MODENONBANK	(1<<6)
66 #define V_MODELFB	(1<<7)
67 #define V_MODEVESA	(1<<16)	/* Private attributes */
68     u_int8_t		v_waattr;
69     u_int8_t		v_wbattr;
70 #define V_WATTREXIST	(1<<0)
71 #define V_WATTRREAD	(1<<1)
72 #define V_WATTRWRITE	(1<<2)
73     u_int16_t		v_wgran;
74     u_int16_t		v_wsize;
75     u_int16_t		v_waseg;
76     u_int16_t		v_wbseg;
77     u_int32_t		v_posfunc;
78     u_int16_t		v_bpscanline;
79     /* fields optional for 1.0/1.1 implementations */
80     u_int16_t		v_width;
81     u_int16_t		v_height;
82     u_int8_t		v_cwidth;
83     u_int8_t		v_cheight;
84     u_int8_t		v_planes;
85     u_int8_t		v_bpp;
86     u_int8_t		v_banks;
87     u_int8_t		v_memmodel;
88 #define V_MMTEXT	0
89 #define V_MMCGA		1
90 #define V_MMHGC		2
91 #define V_MMEGA		3
92 #define V_MMPACKED	4
93 #define V_MMSEQU256	5
94 #define V_MMDIRCOLOR	6
95 #define V_MMYUV		7
96     u_int8_t		v_banksize;
97     u_int8_t		v_ipages;
98     u_int8_t		v_reserved0;
99     /* fields for 1.2+ implementations */
100     u_int8_t		v_redmasksize;
101     u_int8_t		v_redfieldpos;
102     u_int8_t		v_greenmasksize;
103     u_int8_t		v_greenfieldpos;
104     u_int8_t		v_bluemasksize;
105     u_int8_t		v_bluefieldpos;
106     u_int8_t		v_resmasksize;
107     u_int8_t		v_resfieldpos;
108     u_int8_t		v_dircolormode;
109     /* 2.0 implementations */
110     u_int32_t		v_lfb;
111     u_int32_t		v_offscreen;
112     u_int16_t		v_offscreensize;
113     /* 3.0 implementations */
114     u_int16_t		v_linbpscanline;
115     u_int8_t		v_bankipages;
116     u_int8_t		v_linipages;
117     u_int8_t		v_linredmasksize;
118     u_int8_t		v_linredfieldpos;
119     u_int8_t		v_lingreenmasksize;
120     u_int8_t		v_lingreenfieldpos;
121     u_int8_t		v_linbluemasksize;
122     u_int8_t		v_linbluefieldpos;
123     u_int8_t		v_linresmasksize;
124     u_int8_t		v_linresfieldpos;
125     u_int32_t		v_maxpixelclock;
126     u_int8_t		v_reserved1[190];
127 } __packed;
128 
129 #ifdef _KERNEL
130 
131 #define VESA_MODE(x)	((x) >= M_VESA_BASE && (x) <= M_VESA_MODE_MAX)
132 
133 int vesa_load_ioctl(void);
134 int vesa_unload_ioctl(void);
135 
136 #endif
137 
138 #endif /* !_DEV_FB_VESA_H_ */
139