6 // DISPI helper function
7 void dispi_set_enable(enable
);
11 * See the function descriptions in vbe.c for more information
13 Boolean
vbe_has_vbe_display();
15 void vbe_display_info();
16 void vbe_biosfn_return_controller_information(AX
, ES
, DI
);
17 void vbe_biosfn_return_mode_information(AX
, CX
, ES
, DI
);
18 void vbe_biosfn_set_mode(AX
, BX
, ES
, DI
);
19 void vbe_biosfn_return_current_mode(AX
, BX
);
20 void vbe_biosfn_save_restore_state(AX
, DL
, CX
, ES
, BX
);
21 void vbe_biosfn_display_window_control(AX
,BX
,DX
);
22 void vbe_biosfn_set_get_logical_scan_line_length(AX
,BX
,CX
,DX
);
23 void vbe_biosfn_set_get_display_start(AX
,BX
,CX
,DX
);
24 void vbe_biosfn_set_get_dac_palette_format(AX
);
25 void vbe_biosfn_set_get_palette_data(AX
);
26 void vbe_biosfn_return_protected_mode_interface(AX
);
28 // The official VBE Information Block
29 typedef struct VbeInfoBlock
31 Bit8u VbeSignature
[4];
33 Bit16u OemStringPtr_Off
;
34 Bit16u OemStringPtr_Seg
;
35 Bit8u Capabilities
[4];
36 Bit16u VideoModePtr_Off
;
37 Bit16u VideoModePtr_Seg
;
39 Bit16u OemSoftwareRev
;
40 Bit16u OemVendorNamePtr_Off
;
41 Bit16u OemVendorNamePtr_Seg
;
42 Bit16u OemProductNamePtr_Off
;
43 Bit16u OemProductNamePtr_Seg
;
44 Bit16u OemProductRevPtr_Off
;
45 Bit16u OemProductRevPtr_Seg
;
46 Bit16u Reserved
[111]; // used for dynamicly generated mode list
51 // This one is for compactly storing a static list of mode info blocks
52 // this saves us 189 bytes per block
53 typedef struct ModeInfoBlockCompact
55 // Mandatory information for all VBE revisions
56 Bit16u ModeAttributes
;
59 Bit16u WinGranularity
;
64 Bit16u BytesPerScanLine
;
65 // Mandatory information for VBE 1.2 and above
75 Bit8u NumberOfImagePages
;
77 // Direct Color fields (required for direct/6 and YUV/7 memory models)
79 Bit8u RedFieldPosition
;
81 Bit8u GreenFieldPosition
;
83 Bit8u BlueFieldPosition
;
85 Bit8u RsvdFieldPosition
;
86 Bit8u DirectColorModeInfo
;
87 // Mandatory information for VBE 2.0 and above
89 Bit32u OffScreenMemOffset
;
90 Bit16u OffScreenMemSize
;
91 // Mandatory information for VBE 3.0 and above
92 Bit16u LinBytesPerScanLine
;
93 Bit8u BnkNumberOfPages
;
94 Bit8u LinNumberOfPages
;
96 Bit8u LinRedFieldPosition
;
97 Bit8u LinGreenMaskSize
;
98 Bit8u LinGreenFieldPosition
;
99 Bit8u LinBlueMaskSize
;
100 Bit8u LinBlueFieldPosition
;
101 Bit8u LinRsvdMaskSize
;
102 Bit8u LinRsvdFieldPosition
;
103 Bit32u MaxPixelClock
;
104 // Bit8u Reserved[189]; // DO NOT PUT THIS IN HERE because of Compact Mode Info storage in bios
105 } ModeInfoBlockCompact
;
107 typedef struct ModeInfoBlock
109 // Mandatory information for all VBE revisions
110 Bit16u ModeAttributes
;
111 Bit8u WinAAttributes
;
112 Bit8u WinBAttributes
;
113 Bit16u WinGranularity
;
118 Bit16u BytesPerScanLine
;
119 // Mandatory information for VBE 1.2 and above
124 Bit8u NumberOfPlanes
;
129 Bit8u NumberOfImagePages
;
131 // Direct Color fields (required for direct/6 and YUV/7 memory models)
133 Bit8u RedFieldPosition
;
135 Bit8u GreenFieldPosition
;
137 Bit8u BlueFieldPosition
;
139 Bit8u RsvdFieldPosition
;
140 Bit8u DirectColorModeInfo
;
141 // Mandatory information for VBE 2.0 and above
143 Bit32u OffScreenMemOffset
;
144 Bit16u OffScreenMemSize
;
145 // Mandatory information for VBE 3.0 and above
146 Bit16u LinBytesPerScanLine
;
147 Bit8u BnkNumberOfPages
;
148 Bit8u LinNumberOfPages
;
149 Bit8u LinRedMaskSize
;
150 Bit8u LinRedFieldPosition
;
151 Bit8u LinGreenMaskSize
;
152 Bit8u LinGreenFieldPosition
;
153 Bit8u LinBlueMaskSize
;
154 Bit8u LinBlueFieldPosition
;
155 Bit8u LinRsvdMaskSize
;
156 Bit8u LinRsvdFieldPosition
;
157 Bit32u MaxPixelClock
;
161 // VBE Return Status Info
163 #define VBE_RETURN_STATUS_SUPPORTED 0x4F
164 #define VBE_RETURN_STATUS_UNSUPPORTED 0x00
166 #define VBE_RETURN_STATUS_SUCCESSFULL 0x00
167 #define VBE_RETURN_STATUS_FAILED 0x01
168 #define VBE_RETURN_STATUS_NOT_SUPPORTED 0x02
169 #define VBE_RETURN_STATUS_INVALID 0x03
173 #define VBE_MODE_VESA_DEFINED 0x0100
174 #define VBE_MODE_REFRESH_RATE_USE_CRTC 0x0800
175 #define VBE_MODE_LINEAR_FRAME_BUFFER 0x4000
176 #define VBE_MODE_PRESERVE_DISPLAY_MEMORY 0x8000
178 // VBE GFX Mode Number
180 #define VBE_VESA_MODE_640X400X8 0x100
181 #define VBE_VESA_MODE_640X480X8 0x101
182 #define VBE_VESA_MODE_800X600X4 0x102
183 #define VBE_VESA_MODE_800X600X8 0x103
184 #define VBE_VESA_MODE_1024X768X4 0x104
185 #define VBE_VESA_MODE_1024X768X8 0x105
186 #define VBE_VESA_MODE_1280X1024X4 0x106
187 #define VBE_VESA_MODE_1280X1024X8 0x107
188 #define VBE_VESA_MODE_320X200X1555 0x10D
189 #define VBE_VESA_MODE_320X200X565 0x10E
190 #define VBE_VESA_MODE_320X200X888 0x10F
191 #define VBE_VESA_MODE_640X480X1555 0x110
192 #define VBE_VESA_MODE_640X480X565 0x111
193 #define VBE_VESA_MODE_640X480X888 0x112
194 #define VBE_VESA_MODE_800X600X1555 0x113
195 #define VBE_VESA_MODE_800X600X565 0x114
196 #define VBE_VESA_MODE_800X600X888 0x115
197 #define VBE_VESA_MODE_1024X768X1555 0x116
198 #define VBE_VESA_MODE_1024X768X565 0x117
199 #define VBE_VESA_MODE_1024X768X888 0x118
200 #define VBE_VESA_MODE_1280X1024X1555 0x119
201 #define VBE_VESA_MODE_1280X1024X565 0x11A
202 #define VBE_VESA_MODE_1280X1024X888 0x11B
204 // BOCHS/PLEX86 'own' mode numbers
205 // FIXME: Add more modi
206 #define VBE_OWN_MODE_320X200X8888 0x140
207 #define VBE_OWN_MODE_640X400X8888 0x141
208 #define VBE_OWN_MODE_640X480X8888 0x142
209 #define VBE_OWN_MODE_800X600X8888 0x143
210 #define VBE_OWN_MODE_1024X768X8888 0x144
211 #define VBE_OWN_MODE_1280X1024X8888 0x145
212 #define VBE_OWN_MODE_320X200X8 0x146
214 #define VBE_VESA_MODE_END_OF_LIST 0xFFFF
218 #define VBE_CAPABILITY_8BIT_DAC 0x0001
219 #define VBE_CAPABILITY_NOT_VGA_COMPATIBLE 0x0002
220 #define VBE_CAPABILITY_RAMDAC_USE_BLANK_BIT 0x0004
221 #define VBE_CAPABILITY_STEREOSCOPIC_SUPPORT 0x0008
222 #define VBE_CAPABILITY_STEREO_VIA_VESA_EVC 0x0010
226 #define VBE_MODE_ATTRIBUTE_SUPPORTED 0x0001
227 #define VBE_MODE_ATTRIBUTE_EXTENDED_INFORMATION_AVAILABLE 0x0002
228 #define VBE_MODE_ATTRIBUTE_TTY_BIOS_SUPPORT 0x0004
229 #define VBE_MODE_ATTRIBUTE_COLOR_MODE 0x0008
230 #define VBE_MODE_ATTRIBUTE_GRAPHICS_MODE 0x0010
231 #define VBE_MODE_ATTRIBUTE_NOT_VGA_COMPATIBLE 0x0020
232 #define VBE_MODE_ATTRIBUTE_NO_VGA_COMPATIBLE_WINDOW 0x0040
233 #define VBE_MODE_ATTRIBUTE_LINEAR_FRAME_BUFFER_MODE 0x0080
234 #define VBE_MODE_ATTRIBUTE_DOUBLE_SCAN_MODE 0x0100
235 #define VBE_MODE_ATTRIBUTE_INTERLACE_MODE 0x0200
236 #define VBE_MODE_ATTRIBUTE_HARDWARE_TRIPLE_BUFFER 0x0400
237 #define VBE_MODE_ATTRIBUTE_HARDWARE_STEREOSCOPIC_DISPLAY 0x0800
238 #define VBE_MODE_ATTRIBUTE_DUAL_DISPLAY_START_ADDRESS 0x1000
240 #define VBE_MODE_ATTTRIBUTE_LFB_ONLY ( VBE_MODE_ATTRIBUTE_NO_VGA_COMPATIBLE_WINDOW | VBE_MODE_ATTRIBUTE_LINEAR_FRAME_BUFFER_MODE )
244 #define VBE_WINDOW_ATTRIBUTE_RELOCATABLE 0x01
245 #define VBE_WINDOW_ATTRIBUTE_READABLE 0x02
246 #define VBE_WINDOW_ATTRIBUTE_WRITEABLE 0x04
250 #define VBE_MEMORYMODEL_TEXT_MODE 0x00
251 #define VBE_MEMORYMODEL_CGA_GRAPHICS 0x01
252 #define VBE_MEMORYMODEL_HERCULES_GRAPHICS 0x02
253 #define VBE_MEMORYMODEL_PLANAR 0x03
254 #define VBE_MEMORYMODEL_PACKED_PIXEL 0x04
255 #define VBE_MEMORYMODEL_NON_CHAIN_4_256 0x05
256 #define VBE_MEMORYMODEL_DIRECT_COLOR 0x06
257 #define VBE_MEMORYMODEL_YUV 0x07
259 // DirectColorModeInfo
261 #define VBE_DIRECTCOLOR_COLOR_RAMP_PROGRAMMABLE 0x01
262 #define VBE_DIRECTCOLOR_RESERVED_BITS_AVAILABLE 0x02
264 // GUEST <-> HOST Communication API
266 // FIXME: either dynamicly ask host for this or put somewhere high in physical memory
270 #define VBE_DISPI_TOTAL_VIDEO_MEMORY_MB 4
272 #define VBE_DISPI_BANK_ADDRESS 0xA0000
273 #define VBE_DISPI_BANK_SIZE_KB 64
275 #define VBE_DISPI_MAX_XRES 1024
276 #define VBE_DISPI_MAX_YRES 768
278 #define VBE_DISPI_IOPORT_INDEX 0x01CE
279 #define VBE_DISPI_IOPORT_DATA 0x01CF
281 #define VBE_DISPI_INDEX_ID 0x0
282 #define VBE_DISPI_INDEX_XRES 0x1
283 #define VBE_DISPI_INDEX_YRES 0x2
284 #define VBE_DISPI_INDEX_BPP 0x3
285 #define VBE_DISPI_INDEX_ENABLE 0x4
286 #define VBE_DISPI_INDEX_BANK 0x5
287 #define VBE_DISPI_INDEX_VIRT_WIDTH 0x6
288 #define VBE_DISPI_INDEX_VIRT_HEIGHT 0x7
289 #define VBE_DISPI_INDEX_X_OFFSET 0x8
290 #define VBE_DISPI_INDEX_Y_OFFSET 0x9
292 #define VBE_DISPI_ID0 0xB0C0
293 #define VBE_DISPI_ID1 0xB0C1
294 #define VBE_DISPI_ID2 0xB0C2
295 #define VBE_DISPI_ID3 0xB0C3
297 #define VBE_DISPI_DISABLED 0x00
298 #define VBE_DISPI_ENABLED 0x01
299 #define VBE_DISPI_GETCAPS 0x02
300 #define VBE_DISPI_LFB_ENABLED 0x40
301 #define VBE_DISPI_NOCLEARMEM 0x80
303 #define VBE_DISPI_LFB_PHYSICAL_ADDRESS 0xE0000000
306 #define VBE_TOTAL_VIDEO_MEMORY_DIV_64K (VBE_DISPI_TOTAL_VIDEO_MEMORY_MB*1024/64)