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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//#include "edid.h"␉␉␉//Azi:autoresolution <-- included in␊
39#include "autoresolution.h"␊
40␊
41#define MIN_VESA_VERSION 0x200␊
42␊
43#define SEG(address) \␊
44 ((unsigned short)(((unsigned long)address & 0xffff0000) >> 4))␊
45␊
46#define OFF(address) \␊
47 ((unsigned short)((unsigned long)address & 0x0000ffff))␊
48␊
49#define VBEMakeUInt32(x) \␊
50 (((unsigned long)x##_high << 24) | \␊
51 ((unsigned long)x##_2 << 16) | \␊
52 ((unsigned long)x##_1 << 8) | \␊
53 (unsigned long)x##_low)␊
54␊
55#define VBEDecodeFP(t, fp) \␊
56 ((t)(((fp ## _low) | ((fp ## _1 ) << 8)) + \␊
57 (((fp ## _2) << 4) | ((fp ## _high ) << 12))))␊
58␊
59/*␊
60 * Functions␊
61 */␊
62enum {␊
63 funcGetControllerInfo = 0x4F00,␊
64 funcGetModeInfo = 0x4F01,␊
65 funcSetMode = 0x4F02,␊
66 funcGetCurrentMode = 0x4F03,␊
67 funcSaveRestoreState = 0x4F04,␊
68 funcWindowControl = 0x4F05,␊
69 funcGetSetScanLineLength = 0x4F06,␊
70 funcGetSetDisplayStart = 0x4F07,␊
71 funcGetSetPaletteFormat = 0x4F08,␊
72 funcGetSetPaletteData = 0x4F09,␊
73 funcGetProtModeInterdace = 0x4F0A,␊
74 funcGetSetPixelClock = 0x4F0B␊
75};␊
76␊
77enum {␊
78 subfuncSet = 0x00,␊
79 subfuncGet = 0x01,␊
80 subfuncSetSecondary = 0x02,␊
81 subfuncGetSecondary = 0x03␊
82};␊
83␊
84/*␊
85 * errors.␊
86 */␊
87enum {␊
88 errSuccess = 0,␊
89 errFuncFailed = 1,␊
90 errFuncNotSupported = 2,␊
91 errFuncInvalid = 3␊
92};␊
93␊
94/*␊
95 * Per-controller info, returned in function 4f00.␊
96 */␊
97typedef struct {␊
98 unsigned char VESASignature[4];␊
99 unsigned short VESAVersion;␊
100 /*␊
101 * Avoid packing problem...␊
102 */␊
103 unsigned char OEMStringPtr_low;␊
104 unsigned char OEMStringPtr_1;␊
105 unsigned char OEMStringPtr_2;␊
106 unsigned char OEMStringPtr_high;␊
107 unsigned char Capabilities_low;␊
108 unsigned char Capabilities_1;␊
109 unsigned char Capabilities_2;␊
110 unsigned char Capabilities_high;␊
111 unsigned char VideoModePtr_low;␊
112 unsigned char VideoModePtr_1;␊
113 unsigned char VideoModePtr_2;␊
114 unsigned char VideoModePtr_high;␊
115 unsigned short TotalMemory;␊
116 unsigned char Reserved[236];␊
117 unsigned char OEMData[256];␊
118} VBEInfoBlock;␊
119␊
120/*␊
121 * Capabilites␊
122 */␊
123enum {␊
124 capDACWidthIsSwitchableBit = (1 << 0), /* 1 = yes; 0 = no */␊
125 capControllerIsNotVGACompatableBit = (1 << 1), /* 1 = no; 0 = yes */␊
126 capOldRAMDAC = (1 << 2) /* 1 = yes; 0 = no */␊
127};␊
128␊
129/*␊
130 * Per-mode info, returned in function 4f02.␊
131 */␊
132typedef struct {␊
133 unsigned short ModeAttributes;␊
134 unsigned char WinAAttributes;␊
135 unsigned char WinBAttributes;␊
136 unsigned short WinGranularity;␊
137 unsigned short WinSize;␊
138 unsigned short WinASegment;␊
139 unsigned short WinABegment;␊
140 void * WinFuncPtr;␊
141 unsigned short BytesPerScanline;␊
142 unsigned short XResolution;␊
143 unsigned short YResolution;␊
144 unsigned char XCharSize;␊
145 unsigned char YCharSize;␊
146 unsigned char NumberOfPlanes;␊
147 unsigned char BitsPerPixel;␊
148 unsigned char NumberOfBanks;␊
149 unsigned char MemoryModel;␊
150 unsigned char BankSize;␊
151 unsigned char NumberOfImagePages;␊
152 unsigned char Reserved;␊
153 unsigned char RedMaskSize;␊
154 unsigned char RedFieldPosition;␊
155 unsigned char GreenMaskSize;␊
156 unsigned char GreenFieldPosition;␊
157 unsigned char BlueMaskSize;␊
158 unsigned char BlueFieldPosition;␊
159 unsigned char RsvdMaskSize;␊
160 unsigned char RsvdFieldPosition;␊
161 unsigned char DirectColorModeInfo;␊
162 unsigned char PhysBasePtr_low;␊
163 unsigned char PhysBasePtr_1;␊
164 unsigned char PhysBasePtr_2;␊
165 unsigned char PhysBasePtr_high;␊
166 void * OffScreenMemOffset;␊
167 unsigned short OffScreenMemSize;␊
168 unsigned char Reserved1[206];␊
169} VBEModeInfoBlock;␊
170␊
171/* ␊
172 * ModeAttributes bits␊
173 */␊
174enum {␊
175 maModeIsSupportedBit = (1 << 0), /* mode is supported */␊
176 maExtendedInfoAvailableBit = (1 << 1), /* extended info available */␊
177 maOutputFuncSupportedBit = (1 << 2), /* output functions supported */␊
178 maColorModeBit = (1 << 3), /* 1 = color; 0 = mono */␊
179 maGraphicsModeBit = (1 << 4), /* 1 = graphics; 0 = text */␊
180 maModeIsNotVGACompatableBit = (1 << 5), /* 1 = not compat; 0 = compat */␊
181 maVGAMemoryModeNotAvailBit = (1 << 6), /* 1 = not avail; 0 = avail */␊
182 maLinearFrameBufferAvailBit = (1 << 7) /* 1 = avail; 0 = not avail */␊
183};␊
184␊
185/*␊
186 * Modes␊
187 */␊
188enum {␊
189 mode640x400x256 = 0x100,␊
190 mode640x480x256 = 0x101,␊
191 mode800x600x16 = 0x102,␊
192 mode800x600x256 = 0x103,␊
193 mode1024x768x16 = 0x104,␊
194 mode1024x768x256 = 0x105,␊
195 mode1280x1024x16 = 0x106,␊
196 mode1280x1024x256 = 0x107,␊
197 mode80Cx60R = 0x108,␊
198 mode132Cx25R = 0x109,␊
199 mode132Cx43R = 0x10A,␊
200 mode132Cx50R = 0x10B,␊
201 mode132Cx60R = 0x10C,␊
202 mode320x200x555 = 0x10D,␊
203 mode320x200x565 = 0x10E,␊
204 mode320x200x888 = 0x10F,␊
205 mode640x480x555 = 0x110,␊
206 mode640x480x565 = 0x111,␊
207 mode640x480x888 = 0x112,␊
208 mode800x600x555 = 0x113,␊
209 mode800x600x565 = 0x114,␊
210 mode800x600x888 = 0x115,␊
211 mode1024x768x555 = 0x116,␊
212 mode1024x768x565 = 0x117,␊
213 mode1024x768x888 = 0x118,␊
214 mode1280x1024x555 = 0x119,␊
215 mode1280x1024x565 = 0x11A,␊
216 mode1280x1024x888 = 0x11B,␊
217 modeSpecial = 0x81FF,␊
218 modeEndOfList = 0xFFFF␊
219};␊
220␊
221/*␊
222 * Get/Set VBE Mode parameters␊
223 */␊
224enum {␊
225 kCustomRefreshRateBit = (1 << 11),␊
226 kLinearFrameBufferBit = (1 << 14),␊
227 kPreserveMemoryBit = (1 << 15)␊
228};␊
229␊
230/*␊
231 * CRTC information block passed to function 4F02␊
232 * to override default refresh rate.␊
233 */␊
234#pragma pack(1)␊
235␊
236typedef struct {␊
237 unsigned short HTotal;␊
238 unsigned short HSyncStart;␊
239 unsigned short HSyncEnd;␊
240 unsigned short VTotal;␊
241 unsigned short VSyncStart;␊
242 unsigned short VSyncEnd;␊
243 unsigned char Flags;␊
244 unsigned long PixelClock; /* in Hz */␊
245 unsigned short RefreshRate; /* units of 0.01 Hz */␊
246 unsigned char Reserved[40];␊
247} VBECRTCInfoBlock;␊
248␊
249#pragma pack()␊
250␊
251/*␊
252 * Defined flags for 'Flags' field in VBECRTCInfoBlock.␊
253 */␊
254enum {␊
255 kCRTCDoubleScannedMode = (1 << 0),␊
256 kCRTCInterlacedMode = (1 << 1),␊
257 kCRTCNegativeHorizontalSync = (1 << 2),␊
258 kCRTCNegativeVerticalSync = (1 << 3)␊
259};␊
260␊
261/*␊
262 * The type of paramter passed to generateCRTCTimings().␊
263 */␊
264enum {␊
265 kCRTCParamRefreshRate,␊
266 kCRTCParamPixelClock␊
267};␊
268␊
269/*␊
270 * Palette␊
271 */␊
272typedef unsigned long VBEPalette[256];␊
273␊
274/*␊
275 * DDC - AutoResolution␊
276 */␊
277extern int getEDID(void *ddcblock, uint8_t blocksleft);␊
278␊
279extern int getVBEInfo(void *vinfo_p);␊
280extern int getVBEModeInfo(int mode, void *minfo_p);␊
281extern int getVBEDACFormat(unsigned char *format);␊
282extern int setVBEDACFormat(unsigned char format);␊
283extern int setVBEPalette(void *palette);␊
284extern int getVBEPalette(void *palette);␊
285extern int setVBEMode(unsigned short mode, const VBECRTCInfoBlock *timing);␊
286extern int getVBECurrentMode(unsigned short *mode);␊
287extern int getVBEPixelClock(unsigned short mode, unsigned long *pixelClock);␊
288extern int generateCRTCTiming(unsigned short width,␊
289 unsigned short height,␊
290 unsigned long paramValue,␊
291 int paramType,␊
292 VBECRTCInfoBlock * timing);␊
293␊
294#endif /* !__LIBSAIO_VBE_H */␊
295

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