vbe.h

   1 #ifndef vbe_h_included
   2 #define vbe_h_included
   3
   4 #include "vgabios.h"
   5
   6 // DISPI helper function
   7 void dispi_set_enable(enable);
   8
   9 /** VBE int10 API
  10  *
  11  *  See the function descriptions in vbe.c for more information
  12  */
  13 Boolean vbe_has_vbe_display();
  14 void vbe_biosfn_return_controller_information(AX, ES, DI);
  15 void vbe_biosfn_return_mode_information(AX, CX, ES, DI);
  16 void vbe_biosfn_set_mode(AX, BX, ES, DI);
  17 void vbe_biosfn_save_restore_state(AX, DL, CX, ES, BX);
  18 void vbe_biosfn_set_get_palette_data(AX);
  19 void vbe_biosfn_return_protected_mode_interface(AX);
  20
  21 // The official VBE Information Block
  22 typedef struct VbeInfoBlock
  23 {
  24    Bit8u  VbeSignature[4];
  25    Bit16u VbeVersion;
  26    Bit16u OemStringPtr_Off;
  27    Bit16u OemStringPtr_Seg;
  28    Bit8u  Capabilities[4];
  29    Bit16u VideoModePtr_Off;
  30    Bit16u VideoModePtr_Seg;
  31    Bit16u TotalMemory;
  32    Bit16u OemSoftwareRev;
  33    Bit16u OemVendorNamePtr_Off;
  34    Bit16u OemVendorNamePtr_Seg;
  35    Bit16u OemProductNamePtr_Off;
  36    Bit16u OemProductNamePtr_Seg;
  37    Bit16u OemProductRevPtr_Off;
  38    Bit16u OemProductRevPtr_Seg;
  39    Bit16u  Reserved[111]; // used for dynamicly generated mode list
  40    Bit8u  OemData[256];
  41 } VbeInfoBlock;
  42
  43
  44 // This one is for compactly storing a static list of mode info blocks
  45 // this saves us 189 bytes per block
  46 typedef struct ModeInfoBlockCompact
  47 {
  48 // Mandatory information for all VBE revisions
  49    Bit16u ModeAttributes;
  50    Bit8u  WinAAttributes;
  51    Bit8u  WinBAttributes;
  52    Bit16u WinGranularity;
  53    Bit16u WinSize;
  54    Bit16u WinASegment;
  55    Bit16u WinBSegment;
  56    Bit32u WinFuncPtr;
  57    Bit16u BytesPerScanLine;
  58 // Mandatory information for VBE 1.2 and above
  59    Bit16u XResolution;
  60    Bit16u YResolution;
  61    Bit8u  XCharSize;
  62    Bit8u  YCharSize;
  63    Bit8u  NumberOfPlanes;
  64    Bit8u  BitsPerPixel;
  65    Bit8u  NumberOfBanks;
  66    Bit8u  MemoryModel;
  67    Bit8u  BankSize;
  68    Bit8u  NumberOfImagePages;
  69    Bit8u  Reserved_page;
  70 // Direct Color fields (required for direct/6 and YUV/7 memory models)
  71    Bit8u  RedMaskSize;
  72    Bit8u  RedFieldPosition;
  73    Bit8u  GreenMaskSize;
  74    Bit8u  GreenFieldPosition;
  75    Bit8u  BlueMaskSize;
  76    Bit8u  BlueFieldPosition;
  77    Bit8u  RsvdMaskSize;
  78    Bit8u  RsvdFieldPosition;
  79    Bit8u  DirectColorModeInfo;
  80 // Mandatory information for VBE 2.0 and above
  81    Bit32u PhysBasePtr;
  82    Bit32u OffScreenMemOffset;
  83    Bit16u OffScreenMemSize;
  84 // Mandatory information for VBE 3.0 and above
  85    Bit16u LinBytesPerScanLine;
  86    Bit8u  BnkNumberOfPages;
  87    Bit8u  LinNumberOfPages;
  88    Bit8u  LinRedMaskSize;
  89    Bit8u  LinRedFieldPosition;
  90    Bit8u  LinGreenMaskSize;
  91    Bit8u  LinGreenFieldPosition;
  92    Bit8u  LinBlueMaskSize;
  93    Bit8u  LinBlueFieldPosition;
  94    Bit8u  LinRsvdMaskSize;
  95    Bit8u  LinRsvdFieldPosition;
  96    Bit32u MaxPixelClock;
  97 //   Bit8u  Reserved[189]; // DO NOT PUT THIS IN HERE because of Compact Mode Info storage in bios
  98 } ModeInfoBlockCompact;
  99
 100 typedef struct ModeInfoBlock
 101 {
 102 // Mandatory information for all VBE revisions
 103    Bit16u ModeAttributes;
 104    Bit8u  WinAAttributes;
 105    Bit8u  WinBAttributes;
 106    Bit16u WinGranularity;
 107    Bit16u WinSize;
 108    Bit16u WinASegment;
 109    Bit16u WinBSegment;
 110    Bit32u WinFuncPtr;
 111    Bit16u BytesPerScanLine;
 112 // Mandatory information for VBE 1.2 and above
 113    Bit16u XResolution;
 114    Bit16u YResolution;
 115    Bit8u  XCharSize;
 116    Bit8u  YCharSize;
 117    Bit8u  NumberOfPlanes;
 118    Bit8u  BitsPerPixel;
 119    Bit8u  NumberOfBanks;
 120    Bit8u  MemoryModel;
 121    Bit8u  BankSize;
 122    Bit8u  NumberOfImagePages;
 123    Bit8u  Reserved_page;
 124 // Direct Color fields (required for direct/6 and YUV/7 memory models)
 125    Bit8u  RedMaskSize;
 126    Bit8u  RedFieldPosition;
 127    Bit8u  GreenMaskSize;
 128    Bit8u  GreenFieldPosition;
 129    Bit8u  BlueMaskSize;
 130    Bit8u  BlueFieldPosition;
 131    Bit8u  RsvdMaskSize;
 132    Bit8u  RsvdFieldPosition;
 133    Bit8u  DirectColorModeInfo;
 134 // Mandatory information for VBE 2.0 and above
 135    Bit32u PhysBasePtr;
 136    Bit32u OffScreenMemOffset;
 137    Bit16u OffScreenMemSize;
 138 // Mandatory information for VBE 3.0 and above
 139    Bit16u LinBytesPerScanLine;
 140    Bit8u  BnkNumberOfPages;
 141    Bit8u  LinNumberOfPages;
 142    Bit8u  LinRedMaskSize;
 143    Bit8u  LinRedFieldPosition;
 144    Bit8u  LinGreenMaskSize;
 145    Bit8u  LinGreenFieldPosition;
 146    Bit8u  LinBlueMaskSize;
 147    Bit8u  LinBlueFieldPosition;
 148    Bit8u  LinRsvdMaskSize;
 149    Bit8u  LinRsvdFieldPosition;
 150    Bit32u MaxPixelClock;
 151    Bit8u  Reserved[189];
 152 } ModeInfoBlock;
 153
 154 // VBE Return Status Info
 155 // AL
 156 #define VBE_RETURN_STATUS_SUPPORTED                      0x4F
 157 #define VBE_RETURN_STATUS_UNSUPPORTED                    0x00
 158 // AH
 159 #define VBE_RETURN_STATUS_SUCCESSFULL                    0x00
 160 #define VBE_RETURN_STATUS_FAILED                         0x01
 161 #define VBE_RETURN_STATUS_NOT_SUPPORTED                  0x02
 162 #define VBE_RETURN_STATUS_INVALID                        0x03
 163
 164 // VBE Mode Numbers
 165
 166 #define VBE_MODE_VESA_DEFINED                            0x0100
 167 #define VBE_MODE_REFRESH_RATE_USE_CRTC                   0x0800
 168 #define VBE_MODE_LINEAR_FRAME_BUFFER                     0x4000
 169 #define VBE_MODE_PRESERVE_DISPLAY_MEMORY                 0x8000
 170
 171 // VBE GFX Mode Number
 172
 173 #define VBE_VESA_MODE_640X400X8                          0x100
 174 #define VBE_VESA_MODE_640X480X8                          0x101
 175 #define VBE_VESA_MODE_800X600X4                          0x102
 176 #define VBE_VESA_MODE_800X600X8                          0x103
 177 #define VBE_VESA_MODE_1024X768X4                         0x104
 178 #define VBE_VESA_MODE_1024X768X8                         0x105
 179 #define VBE_VESA_MODE_1280X1024X4                        0x106
 180 #define VBE_VESA_MODE_1280X1024X8                        0x107
 181 #define VBE_VESA_MODE_320X200X1555                       0x10D
 182 #define VBE_VESA_MODE_320X200X565                        0x10E
 183 #define VBE_VESA_MODE_320X200X888                        0x10F
 184 #define VBE_VESA_MODE_640X480X1555                       0x110
 185 #define VBE_VESA_MODE_640X480X565                        0x111
 186 #define VBE_VESA_MODE_640X480X888                        0x112
 187 #define VBE_VESA_MODE_800X600X1555                       0x113
 188 #define VBE_VESA_MODE_800X600X565                        0x114
 189 #define VBE_VESA_MODE_800X600X888                        0x115
 190 #define VBE_VESA_MODE_1024X768X1555                      0x116
 191 #define VBE_VESA_MODE_1024X768X565                       0x117
 192 #define VBE_VESA_MODE_1024X768X888                       0x118
 193 #define VBE_VESA_MODE_1280X1024X1555                     0x119
 194 #define VBE_VESA_MODE_1280X1024X565                      0x11A
 195 #define VBE_VESA_MODE_1280X1024X888                      0x11B
 196
 197 // BOCHS/PLEX86 'own' mode numbers
 198 #define VBE_OWN_MODE_320X200X8888                        0x140
 199 #define VBE_OWN_MODE_640X400X8888                        0x141
 200 #define VBE_OWN_MODE_640X480X8888                        0x142
 201 #define VBE_OWN_MODE_800X600X8888                        0x143
 202 #define VBE_OWN_MODE_1024X768X8888                       0x144
 203 #define VBE_OWN_MODE_1280X1024X8888                      0x145
 204 #define VBE_OWN_MODE_320X200X8                           0x146
 205
 206 #define VBE_VESA_MODE_END_OF_LIST                        0xFFFF
 207
 208 // Capabilities
 209
 210 #define VBE_CAPABILITY_8BIT_DAC                          0x0001
 211 #define VBE_CAPABILITY_NOT_VGA_COMPATIBLE                0x0002
 212 #define VBE_CAPABILITY_RAMDAC_USE_BLANK_BIT              0x0004
 213 #define VBE_CAPABILITY_STEREOSCOPIC_SUPPORT              0x0008
 214 #define VBE_CAPABILITY_STEREO_VIA_VESA_EVC               0x0010
 215
 216 // Mode Attributes
 217
 218 #define VBE_MODE_ATTRIBUTE_SUPPORTED                     0x0001
 219 #define VBE_MODE_ATTRIBUTE_EXTENDED_INFORMATION_AVAILABLE  0x0002
 220 #define VBE_MODE_ATTRIBUTE_TTY_BIOS_SUPPORT              0x0004
 221 #define VBE_MODE_ATTRIBUTE_COLOR_MODE                    0x0008
 222 #define VBE_MODE_ATTRIBUTE_GRAPHICS_MODE                 0x0010
 223 #define VBE_MODE_ATTRIBUTE_NOT_VGA_COMPATIBLE            0x0020
 224 #define VBE_MODE_ATTRIBUTE_NO_VGA_COMPATIBLE_WINDOW      0x0040
 225 #define VBE_MODE_ATTRIBUTE_LINEAR_FRAME_BUFFER_MODE      0x0080
 226 #define VBE_MODE_ATTRIBUTE_DOUBLE_SCAN_MODE              0x0100
 227 #define VBE_MODE_ATTRIBUTE_INTERLACE_MODE                0x0200
 228 #define VBE_MODE_ATTRIBUTE_HARDWARE_TRIPLE_BUFFER        0x0400
 229 #define VBE_MODE_ATTRIBUTE_HARDWARE_STEREOSCOPIC_DISPLAY 0x0800
 230 #define VBE_MODE_ATTRIBUTE_DUAL_DISPLAY_START_ADDRESS    0x1000
 231
 232 #define VBE_MODE_ATTTRIBUTE_LFB_ONLY                     ( VBE_MODE_ATTRIBUTE_NO_VGA_COMPATIBLE_WINDOW | VBE_MODE_ATTRIBUTE_LINEAR_FRAME_BUFFER_MODE )
 233
 234 // Window attributes
 235
 236 #define VBE_WINDOW_ATTRIBUTE_RELOCATABLE                 0x01
 237 #define VBE_WINDOW_ATTRIBUTE_READABLE                    0x02
 238 #define VBE_WINDOW_ATTRIBUTE_WRITEABLE                   0x04
 239
 240 // Memory model
 241
 242 #define VBE_MEMORYMODEL_TEXT_MODE                        0x00
 243 #define VBE_MEMORYMODEL_CGA_GRAPHICS                     0x01
 244 #define VBE_MEMORYMODEL_HERCULES_GRAPHICS                0x02
 245 #define VBE_MEMORYMODEL_PLANAR                           0x03
 246 #define VBE_MEMORYMODEL_PACKED_PIXEL                     0x04
 247 #define VBE_MEMORYMODEL_NON_CHAIN_4_256                  0x05
 248 #define VBE_MEMORYMODEL_DIRECT_COLOR                     0x06
 249 #define VBE_MEMORYMODEL_YUV                              0x07
 250
 251 // DirectColorModeInfo
 252
 253 #define VBE_DIRECTCOLOR_COLOR_RAMP_PROGRAMMABLE          0x01
 254 #define VBE_DIRECTCOLOR_RESERVED_BITS_AVAILABLE          0x02
 255
 256 // GUEST <-> HOST Communication API
 257
 258 // FIXME: either dynamicly ask host for this or put somewhere high in physical memory
 259 //        like 0xE0000000
 260
 261
 262   #define VBE_DISPI_TOTAL_VIDEO_MEMORY_MB 4
 263
 264   #define VBE_DISPI_BANK_ADDRESS          0xA0000
 265   #define VBE_DISPI_BANK_SIZE_KB          64
 266
 267   #define VBE_DISPI_MAX_XRES              1024
 268   #define VBE_DISPI_MAX_YRES              768
 269
 270   #define VBE_DISPI_IOPORT_INDEX          0x01CE
 271   #define VBE_DISPI_IOPORT_DATA           0x01CF
 272
 273   #define VBE_DISPI_INDEX_ID              0x0
 274   #define VBE_DISPI_INDEX_XRES            0x1
 275   #define VBE_DISPI_INDEX_YRES            0x2
 276   #define VBE_DISPI_INDEX_BPP             0x3
 277   #define VBE_DISPI_INDEX_ENABLE          0x4
 278   #define VBE_DISPI_INDEX_BANK            0x5
 279   #define VBE_DISPI_INDEX_VIRT_WIDTH      0x6
 280   #define VBE_DISPI_INDEX_VIRT_HEIGHT     0x7
 281   #define VBE_DISPI_INDEX_X_OFFSET        0x8
 282   #define VBE_DISPI_INDEX_Y_OFFSET        0x9
 283
 284   #define VBE_DISPI_ID0                   0xB0C0
 285   #define VBE_DISPI_ID1                   0xB0C1
 286   #define VBE_DISPI_ID2                   0xB0C2
 287   #define VBE_DISPI_ID3                   0xB0C3
 288
 289   #define VBE_DISPI_DISABLED              0x00
 290   #define VBE_DISPI_ENABLED               0x01
 291   #define VBE_DISPI_GETCAPS               0x02
 292   #define VBE_DISPI_8BIT_DAC              0x20
 293   #define VBE_DISPI_LFB_ENABLED           0x40
 294   #define VBE_DISPI_NOCLEARMEM            0x80
 295
 296   #define VBE_DISPI_LFB_PHYSICAL_ADDRESS  0xE0000000
 297
 298
 299 #define VBE_TOTAL_VIDEO_MEMORY_DIV_64K                  (VBE_DISPI_TOTAL_VIDEO_MEMORY_MB*1024/64)
 300
 301
 302 #endif