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1/*␊
2 * Copyright (c) 1999-2003 Apple Computer, Inc. All rights reserved.␊
3 *␊
4 * @APPLE_LICENSE_HEADER_START@␊
5 * ␊
6 * Portions Copyright (c) 1999-2003 Apple Computer, Inc. All Rights␊
7 * Reserved. This file contains Original Code and/or Modifications of␊
8 * Original Code as defined in and that are subject to the Apple Public␊
9 * Source License Version 2.0 (the "License"). You may not use this file␊
10 * except in compliance with the License. Please obtain a copy of the␊
11 * License at http://www.apple.com/publicsource and read it before using␊
12 * this file.␊
13 * ␊
14 * The Original Code and all software distributed under the License are␊
15 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊
16 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊
17 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊
18 * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT. Please see the␊
19 * License for the specific language governing rights and limitations␊
20 * under the License.␊
21 * ␊
22 * @APPLE_LICENSE_HEADER_END@␊
23 */␊
24// Copyright 1997 by Apple Computer, Inc., all rights reserved.␊
25/* Copyright 1996-1997 NeXT Software, Inc.␊
26 *␊
27 * vesa.h - mode info obtained via int10␊
28 *␊
29 * Revision History␊
30 * ----------------␊
31 * 30 Jul 1996 Doug Mitchell at NeXT␊
32 * Created.␊
33 */␊
34␊
35#ifndef __LIBSAIO_VBE_H␊
36#define __LIBSAIO_VBE_H␊
37␊
38#define MIN_VESA_VERSION 0x200␊
39␊
40#define SEG(address) \␊
41 ((unsigned short)(((unsigned long)address & 0xffff0000) >> 4))␊
42␊
43#define OFF(address) \␊
44 ((unsigned short)((unsigned long)address & 0x0000ffff))␊
45␊
46#define VBEMakeUInt32(x) \␊
47 (((unsigned long)x##_high << 24) | \␊
48 ((unsigned long)x##_2 << 16) | \␊
49 ((unsigned long)x##_1 << 8) | \␊
50 (unsigned long)x##_low)␊
51␊
52#define VBEDecodeFP(t, fp) \␊
53 ((t)(((fp ## _low) | ((fp ## _1 ) << 8)) + \␊
54 (((fp ## _2) << 4) | ((fp ## _high ) << 12))))␊
55␊
56/*␊
57 * Functions␊
58 */␊
59enum {␊
60␉funcGetControllerInfo␉␉= 0x4F00,␊
61␉funcGetModeInfo␉␉␉= 0x4F01,␊
62␉funcSetMode␉␉␉= 0x4F02,␊
63␉funcGetCurrentMode␉␉= 0x4F03,␊
64␉funcSaveRestoreState␉␉= 0x4F04,␊
65␉funcWindowControl␉␉= 0x4F05,␊
66␉funcGetSetScanLineLength␉= 0x4F06,␊
67␉funcGetSetDisplayStart␉␉= 0x4F07,␊
68␉funcGetSetPaletteFormat␉␉= 0x4F08,␊
69␉funcGetSetPaletteData␉␉= 0x4F09,␊
70␉funcGetProtModeInterdace␉= 0x4F0A,␊
71␉funcGetSetPixelClock␉␉= 0x4F0B␊
72};␊
73␊
74enum {␊
75 subfuncSet = 0x00,␊
76 subfuncGet = 0x01,␊
77 subfuncSetSecondary = 0x02,␊
78 subfuncGetSecondary = 0x03␊
79};␊
80␊
81/*␊
82 * errors.␊
83 */␊
84enum {␊
85 errSuccess = 0,␊
86 errFuncFailed = 1,␊
87 errFuncNotSupported = 2,␊
88 errFuncInvalid = 3␊
89};␊
90␊
91/*␊
92 * Per-controller info, returned in function 4f00.␊
93 */␊
94typedef struct {␊
95 unsigned char VESASignature[4];␊
96 unsigned short VESAVersion;␊
97 /*␊
98 * Avoid packing problem...␊
99 */␊
100 unsigned char OEMStringPtr_low;␊
101 unsigned char OEMStringPtr_1;␊
102 unsigned char OEMStringPtr_2;␊
103 unsigned char OEMStringPtr_high;␊
104 unsigned char Capabilities_low;␊
105 unsigned char Capabilities_1;␊
106 unsigned char Capabilities_2;␊
107 unsigned char Capabilities_high;␊
108 unsigned char VideoModePtr_low;␊
109 unsigned char VideoModePtr_1;␊
110 unsigned char VideoModePtr_2;␊
111 unsigned char VideoModePtr_high;␊
112 unsigned short TotalMemory;␊
113 unsigned char Reserved[236];␊
114 unsigned char OEMData[256];␊
115} VBEInfoBlock;␊
116␊
117/*␊
118 * Capabilites␊
119 */␊
120enum {␊
121 capDACWidthIsSwitchableBit = (1 << 0), /* 1 = yes; 0 = no */␊
122 capControllerIsNotVGACompatableBit = (1 << 1), /* 1 = no; 0 = yes */␊
123 capOldRAMDAC = (1 << 2) /* 1 = yes; 0 = no */␊
124};␊
125␊
126/*␊
127 * Per-mode info, returned in function 4f02.␊
128 */␊
129typedef struct {␊
130 unsigned short ModeAttributes;␊
131 unsigned char WinAAttributes;␊
132 unsigned char WinBAttributes;␊
133 unsigned short WinGranularity;␊
134 unsigned short WinSize;␊
135 unsigned short WinASegment;␊
136 unsigned short WinABegment;␊
137 void * WinFuncPtr;␊
138 unsigned short BytesPerScanline;␊
139 unsigned short XResolution;␊
140 unsigned short YResolution;␊
141 unsigned char XCharSize;␊
142 unsigned char YCharSize;␊
143 unsigned char NumberOfPlanes;␊
144 unsigned char BitsPerPixel;␊
145 unsigned char NumberOfBanks;␊
146 unsigned char MemoryModel;␊
147 unsigned char BankSize;␊
148 unsigned char NumberOfImagePages;␊
149 unsigned char Reserved;␊
150 unsigned char RedMaskSize;␊
151 unsigned char RedFieldPosition;␊
152 unsigned char GreenMaskSize;␊
153 unsigned char GreenFieldPosition;␊
154 unsigned char BlueMaskSize;␊
155 unsigned char BlueFieldPosition;␊
156 unsigned char RsvdMaskSize;␊
157 unsigned char RsvdFieldPosition;␊
158 unsigned char DirectColorModeInfo;␊
159 unsigned char PhysBasePtr_low;␊
160 unsigned char PhysBasePtr_1;␊
161 unsigned char PhysBasePtr_2;␊
162 unsigned char PhysBasePtr_high;␊
163 void * OffScreenMemOffset;␊
164 unsigned short OffScreenMemSize;␊
165 unsigned char Reserved1[206];␊
166} VBEModeInfoBlock;␊
167␊
168/* ␊
169 * ModeAttributes bits␊
170 */␊
171enum {␊
172 maModeIsSupportedBit = (1 << 0), /* mode is supported */␊
173 maExtendedInfoAvailableBit = (1 << 1), /* extended info available */␊
174 maOutputFuncSupportedBit = (1 << 2), /* output functions supported */␊
175 maColorModeBit = (1 << 3), /* 1 = color; 0 = mono */␊
176 maGraphicsModeBit = (1 << 4), /* 1 = graphics; 0 = text */␊
177 maModeIsNotVGACompatableBit = (1 << 5), /* 1 = not compat; 0 = compat */␊
178 maVGAMemoryModeNotAvailBit = (1 << 6), /* 1 = not avail; 0 = avail */␊
179 maLinearFrameBufferAvailBit = (1 << 7) /* 1 = avail; 0 = not avail */␊
180};␊
181␊
182/*␊
183 * Modes␊
184 */␊
185enum {␊
186 mode640x400x256 = 0x100,␊
187 mode640x480x256 = 0x101,␊
188 mode800x600x16 = 0x102,␊
189 mode800x600x256 = 0x103,␊
190 mode1024x768x16 = 0x104,␊
191 mode1024x768x256 = 0x105,␊
192 mode1280x1024x16 = 0x106,␊
193 mode1280x1024x256 = 0x107,␊
194 mode80Cx60R = 0x108,␊
195 mode132Cx25R = 0x109,␊
196 mode132Cx43R = 0x10A,␊
197 mode132Cx50R = 0x10B,␊
198 mode132Cx60R = 0x10C,␊
199 mode320x200x555 = 0x10D,␊
200 mode320x200x565 = 0x10E,␊
201 mode320x200x888 = 0x10F,␊
202 mode640x480x555 = 0x110,␊
203 mode640x480x565 = 0x111,␊
204 mode640x480x888 = 0x112,␊
205 mode800x600x555 = 0x113,␊
206 mode800x600x565 = 0x114,␊
207 mode800x600x888 = 0x115,␊
208 mode1024x768x555 = 0x116,␊
209 mode1024x768x565 = 0x117,␊
210 mode1024x768x888 = 0x118,␊
211 mode1280x1024x555 = 0x119,␊
212 mode1280x1024x565 = 0x11A,␊
213 mode1280x1024x888 = 0x11B,␊
214 modeSpecial = 0x81FF,␊
215 modeEndOfList = 0xFFFF␊
216};␊
217␊
218/*␊
219 * Get/Set VBE Mode parameters␊
220 */␊
221enum {␊
222 kCustomRefreshRateBit = (1 << 11),␊
223 kLinearFrameBufferBit = (1 << 14),␊
224 kPreserveMemoryBit = (1 << 15)␊
225};␊
226␊
227/*␊
228 * CRTC information block passed to function 4F02␊
229 * to override default refresh rate.␊
230 */␊
231#pragma pack(1)␊
232␊
233typedef struct {␊
234 unsigned short HTotal;␊
235 unsigned short HSyncStart;␊
236 unsigned short HSyncEnd;␊
237 unsigned short VTotal;␊
238 unsigned short VSyncStart;␊
239 unsigned short VSyncEnd;␊
240 unsigned char Flags;␊
241 unsigned long PixelClock; /* in Hz */␊
242 unsigned short RefreshRate; /* units of 0.01 Hz */␊
243 unsigned char Reserved[40];␊
244} VBECRTCInfoBlock;␊
245␊
246#pragma pack()␊
247␊
248/*␊
249 * Defined flags for 'Flags' field in VBECRTCInfoBlock.␊
250 */␊
251enum {␊
252 kCRTCDoubleScannedMode = (1 << 0),␊
253 kCRTCInterlacedMode = (1 << 1),␊
254 kCRTCNegativeHorizontalSync = (1 << 2),␊
255 kCRTCNegativeVerticalSync = (1 << 3)␊
256};␊
257␊
258/*␊
259 * The type of paramter passed to generateCRTCTimings().␊
260 */␊
261enum {␊
262 kCRTCParamRefreshRate,␊
263 kCRTCParamPixelClock␊
264};␊
265␊
266/*␊
267 * Palette␊
268 */␊
269typedef unsigned long VBEPalette[256];␊
270␊
271extern int getVBEInfo(void *vinfo_p);␊
272extern int getVBEModeInfo(int mode, void *minfo_p);␊
273extern int getVBEDACFormat(unsigned char *format);␊
274extern int setVBEDACFormat(unsigned char format);␊
275extern int setVBEPalette(void *palette);␊
276extern int getVBEPalette(void *palette);␊
277extern int setVBEMode(unsigned short mode, const VBECRTCInfoBlock *timing);␊
278extern int getVBECurrentMode(unsigned short *mode);␊
279extern int getVBEPixelClock(unsigned short mode, unsigned long *pixelClock);␊
280extern int generateCRTCTiming(unsigned short width,␊
281 unsigned short height,␊
282 unsigned long paramValue,␊
283 int paramType,␊
284 VBECRTCInfoBlock * timing);␊
285␊
286#endif /* !__LIBSAIO_VBE_H */␊
287

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