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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␉funcGetEDID = 0x4f15␊
73};␊
74␊
75enum {␊
76 subfuncSet = 0x00,␊
77 subfuncGet = 0x01,␊
78 subfuncSetSecondary = 0x02,␊
79 subfuncGetSecondary = 0x03␊
80};␊
81␊
82/*␊
83 * errors.␊
84 */␊
85enum {␊
86 errSuccess = 0,␊
87 errFuncFailed = 1,␊
88 errFuncNotSupported = 2,␊
89 errFuncInvalid = 3␊
90};␊
91␊
92/*␊
93 * Per-controller info, returned in function 4f00.␊
94 */␊
95typedef struct {␊
96 unsigned char VESASignature[4];␊
97 unsigned short VESAVersion;␊
98 /*␊
99 * Avoid packing problem...␊
100 */␊
101 unsigned char OEMStringPtr_low;␊
102 unsigned char OEMStringPtr_1;␊
103 unsigned char OEMStringPtr_2;␊
104 unsigned char OEMStringPtr_high;␊
105 unsigned char Capabilities_low;␊
106 unsigned char Capabilities_1;␊
107 unsigned char Capabilities_2;␊
108 unsigned char Capabilities_high;␊
109 unsigned char VideoModePtr_low;␊
110 unsigned char VideoModePtr_1;␊
111 unsigned char VideoModePtr_2;␊
112 unsigned char VideoModePtr_high;␊
113 unsigned short TotalMemory;␊
114 unsigned char Reserved[236];␊
115 unsigned char OEMData[256];␊
116} VBEInfoBlock;␊
117␊
118/*␊
119 * Capabilites␊
120 */␊
121enum {␊
122 capDACWidthIsSwitchableBit = (1 << 0), /* 1 = yes; 0 = no */␊
123 capControllerIsNotVGACompatableBit = (1 << 1), /* 1 = no; 0 = yes */␊
124 capOldRAMDAC = (1 << 2) /* 1 = yes; 0 = no */␊
125};␊
126␊
127/*␊
128 * Per-mode info, returned in function 4f02.␊
129 */␊
130typedef struct {␊
131 unsigned short ModeAttributes;␊
132 unsigned char WinAAttributes;␊
133 unsigned char WinBAttributes;␊
134 unsigned short WinGranularity;␊
135 unsigned short WinSize;␊
136 unsigned short WinASegment;␊
137 unsigned short WinABegment;␊
138 void * WinFuncPtr;␊
139 unsigned short BytesPerScanline;␊
140 unsigned short XResolution;␊
141 unsigned short YResolution;␊
142 unsigned char XCharSize;␊
143 unsigned char YCharSize;␊
144 unsigned char NumberOfPlanes;␊
145 unsigned char BitsPerPixel;␊
146 unsigned char NumberOfBanks;␊
147 unsigned char MemoryModel;␊
148 unsigned char BankSize;␊
149 unsigned char NumberOfImagePages;␊
150 unsigned char Reserved;␊
151 unsigned char RedMaskSize;␊
152 unsigned char RedFieldPosition;␊
153 unsigned char GreenMaskSize;␊
154 unsigned char GreenFieldPosition;␊
155 unsigned char BlueMaskSize;␊
156 unsigned char BlueFieldPosition;␊
157 unsigned char RsvdMaskSize;␊
158 unsigned char RsvdFieldPosition;␊
159 unsigned char DirectColorModeInfo;␊
160 unsigned char PhysBasePtr_low;␊
161 unsigned char PhysBasePtr_1;␊
162 unsigned char PhysBasePtr_2;␊
163 unsigned char PhysBasePtr_high;␊
164 void * OffScreenMemOffset;␊
165 unsigned short OffScreenMemSize;␊
166 unsigned char Reserved1[206];␊
167} VBEModeInfoBlock;␊
168␊
169/* ␊
170 * ModeAttributes bits␊
171 */␊
172enum {␊
173 maModeIsSupportedBit = (1 << 0), /* mode is supported */␊
174 maExtendedInfoAvailableBit = (1 << 1), /* extended info available */␊
175 maOutputFuncSupportedBit = (1 << 2), /* output functions supported */␊
176 maColorModeBit = (1 << 3), /* 1 = color; 0 = mono */␊
177 maGraphicsModeBit = (1 << 4), /* 1 = graphics; 0 = text */␊
178 maModeIsNotVGACompatableBit = (1 << 5), /* 1 = not compat; 0 = compat */␊
179 maVGAMemoryModeNotAvailBit = (1 << 6), /* 1 = not avail; 0 = avail */␊
180 maLinearFrameBufferAvailBit = (1 << 7) /* 1 = avail; 0 = not avail */␊
181};␊
182␊
183/*␊
184 * Modes␊
185 */␊
186enum {␊
187 mode640x400x256 = 0x100,␊
188 mode640x480x256 = 0x101,␊
189 mode800x600x16 = 0x102,␊
190 mode800x600x256 = 0x103,␊
191 mode1024x768x16 = 0x104,␊
192 mode1024x768x256 = 0x105,␊
193 mode1280x1024x16 = 0x106,␊
194 mode1280x1024x256 = 0x107,␊
195 mode80Cx60R = 0x108,␊
196 mode132Cx25R = 0x109,␊
197 mode132Cx43R = 0x10A,␊
198 mode132Cx50R = 0x10B,␊
199 mode132Cx60R = 0x10C,␊
200 mode320x200x555 = 0x10D,␊
201 mode320x200x565 = 0x10E,␊
202 mode320x200x888 = 0x10F,␊
203 mode640x480x555 = 0x110,␊
204 mode640x480x565 = 0x111,␊
205 mode640x480x888 = 0x112,␊
206 mode800x600x555 = 0x113,␊
207 mode800x600x565 = 0x114,␊
208 mode800x600x888 = 0x115,␊
209 mode1024x768x555 = 0x116,␊
210 mode1024x768x565 = 0x117,␊
211 mode1024x768x888 = 0x118,␊
212 mode1280x1024x555 = 0x119,␊
213 mode1280x1024x565 = 0x11A,␊
214 mode1280x1024x888 = 0x11B,␊
215 modeSpecial = 0x81FF,␊
216 modeEndOfList = 0xFFFF␊
217};␊
218␊
219/*␊
220 * Get/Set VBE Mode parameters␊
221 */␊
222enum {␊
223 kCustomRefreshRateBit = (1 << 11),␊
224 kLinearFrameBufferBit = (1 << 14),␊
225 kPreserveMemoryBit = (1 << 15)␊
226};␊
227␊
228/*␊
229 * CRTC information block passed to function 4F02␊
230 * to override default refresh rate.␊
231 */␊
232#pragma pack(1)␊
233␊
234typedef struct {␊
235 unsigned short HTotal;␊
236 unsigned short HSyncStart;␊
237 unsigned short HSyncEnd;␊
238 unsigned short VTotal;␊
239 unsigned short VSyncStart;␊
240 unsigned short VSyncEnd;␊
241 unsigned char Flags;␊
242 unsigned long PixelClock; /* in Hz */␊
243 unsigned short RefreshRate; /* units of 0.01 Hz */␊
244 unsigned char Reserved[40];␊
245} VBECRTCInfoBlock;␊
246␊
247#pragma pack()␊
248␊
249/*␊
250 * Defined flags for 'Flags' field in VBECRTCInfoBlock.␊
251 */␊
252enum {␊
253 kCRTCDoubleScannedMode = (1 << 0),␊
254 kCRTCInterlacedMode = (1 << 1),␊
255 kCRTCNegativeHorizontalSync = (1 << 2),␊
256 kCRTCNegativeVerticalSync = (1 << 3)␊
257};␊
258␊
259/*␊
260 * The type of paramter passed to generateCRTCTimings().␊
261 */␊
262enum {␊
263 kCRTCParamRefreshRate,␊
264 kCRTCParamPixelClock␊
265};␊
266␊
267/*␊
268 * Palette␊
269 */␊
270typedef unsigned long VBEPalette[256];␊
271␊
272extern int getVBEInfo(void *vinfo_p);␊
273extern int getEDID(void * edidBlock, UInt8 blocks_left);␊
274extern int getVBEModeInfo(int mode, void *minfo_p);␊
275extern int getVBEDACFormat(unsigned char *format);␊
276extern int setVBEDACFormat(unsigned char format);␊
277extern int setVBEPalette(void *palette);␊
278extern int getVBEPalette(void *palette);␊
279extern int setVBEMode(unsigned short mode, const VBECRTCInfoBlock *timing);␊
280extern int getVBECurrentMode(unsigned short *mode);␊
281extern int getVBEPixelClock(unsigned short mode, unsigned long *pixelClock);␊
282extern int generateCRTCTiming(unsigned short width,␊
283 unsigned short height,␊
284 unsigned long paramValue,␊
285 int paramType,␊
286 VBECRTCInfoBlock * timing);␊
287␊
288#endif /* !__LIBSAIO_VBE_H */␊
289

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