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Lab2
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vbe.h
00001 #ifndef __VBE_H 00002 #define __VBE_H 00003 00016 typedef struct { 00017 /* Mandatory information for all VBE revisions */ 00018 u16_t ModeAttributes; 00019 u8_t WinAAttributes; 00020 u8_t WinBAttributes; 00021 u16_t WinGranularity; 00022 u16_t WinSize; 00023 u16_t WinASegment; 00024 u16_t WinBSegment; 00025 phys_bytes WinFuncPtr; 00026 u16_t BytesPerScanLine; 00028 /* Mandatory information for VBE 1.2 and above */ 00029 00030 u16_t XResolution; 00031 u16_t YResolution; 00032 u8_t XCharSize; 00033 u8_t YCharSize; 00034 u8_t NumberOfPlanes; 00035 u8_t BitsPerPixel; 00036 u8_t NumberOfBanks; 00037 u8_t MemoryModel; 00038 u8_t BankSize; 00039 u8_t NumberOfImagePages; 00040 u8_t Reserved1; 00042 /* Direct Color fields (required for direct/6 and YUV/7 memory models) */ 00043 00044 u8_t RedMaskSize; /* size of direct color red mask in bits */ 00045 u8_t RedFieldPosition; /* bit position of lsb of red mask */ 00046 u8_t GreenMaskSize; /* size of direct color green mask in bits */ 00047 u8_t GreenFieldPosition; /* bit position of lsb of green mask */ 00048 u8_t BlueMaskSize; /* size of direct color blue mask in bits */ 00049 u8_t BlueFieldPosition; /* bit position of lsb of blue mask */ 00050 u8_t RsvdMaskSize; /* size of direct color reserved mask in bits */ 00051 u8_t RsvdFieldPosition; /* bit position of lsb of reserved mask */ 00052 u8_t DirectColorModeInfo; /* direct color mode attributes */ 00053 00054 /* Mandatory information for VBE 2.0 and above */ 00055 phys_bytes PhysBasePtr; 00056 u8_t Reserved2[4]; 00057 u8_t Reserved3[2]; 00059 /* Mandatory information for VBE 3.0 and above */ 00060 u16_t LinBytesPerScanLine; /* bytes per scan line for linear modes */ 00061 u8_t BnkNumberOfImagePages; /* number of images for banked modes */ 00062 u8_t LinNumberOfImagePages; /* number of images for linear modes */ 00063 u8_t LinRedMaskSize; /* size of direct color red mask (linear modes) */ 00064 u8_t LinRedFieldPosition; /* bit position of lsb of red mask (linear modes) */ 00065 u8_t LinGreenMaskSize; /* size of direct color green mask (linear modes) */ 00066 u8_t LinGreenFieldPosition; /* bit position of lsb of green mask (linear modes) */ 00067 u8_t LinBlueMaskSize; /* size of direct color blue mask (linear modes) */ 00068 u8_t LinBlueFieldPosition; /* bit position of lsb of blue mask (linear modes ) */ 00069 u8_t LinRsvdMaskSize; /* size of direct color reserved mask (linear modes) */ 00070 u8_t LinRsvdFieldPosition; /* bit position of lsb of reserved mask (linear modes) */ 00071 u32_t MaxPixelClock; /* maximum pixel clock (in Hz) for graphics mode */ 00072 u8_t Reserved4[189]; /* remainder of ModeInfoBlock */ 00073 } vbe_mode_info_t; 00074 00089 int vbe_get_mode_info(unsigned short mode, vbe_mode_info_t *vmi_p); 00090 00093 #endif /* __VBE_H */
