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Annotation of qemu/roms/seabios/vgasrc/vgabios.h, revision 1.1

1.1     ! root        1: #ifndef __VGABIOS_H
        !             2: #define __VGABIOS_H
        !             3: 
        !             4: #include "types.h" // u8
        !             5: #include "farptr.h" // struct segoff_s
        !             6: 
        !             7: // standard BIOS Video Parameter Table
        !             8: struct VideoParam_s {
        !             9:     u8 twidth;
        !            10:     u8 theightm1;
        !            11:     u8 cheight;
        !            12:     u16 slength;
        !            13:     u8 sequ_regs[4];
        !            14:     u8 miscreg;
        !            15:     u8 crtc_regs[25];
        !            16:     u8 actl_regs[20];
        !            17:     u8 grdc_regs[9];
        !            18: } PACKED;
        !            19: 
        !            20: extern struct VideoParam_s video_param_table[29];
        !            21: 
        !            22: struct saveBDAstate {
        !            23:     u16 video_mode;
        !            24:     u16 video_cols;
        !            25:     u16 video_pagesize;
        !            26:     u16 crtc_address;
        !            27:     u8 video_rows;
        !            28:     u16 char_height;
        !            29:     u8 video_ctl;
        !            30:     u8 video_switches;
        !            31:     u8 modeset_ctl;
        !            32:     u16 cursor_type;
        !            33:     u16 cursor_pos[8];
        !            34:     u16 video_pagestart;
        !            35:     u8 video_page;
        !            36:     /* current font */
        !            37:     struct segoff_s font0;
        !            38:     struct segoff_s font1;
        !            39: };
        !            40: 
        !            41: // Mode flags
        !            42: #define MF_GRAYSUM    0x0002
        !            43: #define MF_NOPALETTE  0x0008
        !            44: #define MF_CUSTOMCRTC 0x0800
        !            45: #define MF_LINEARFB   0x4000
        !            46: #define MF_NOCLEARMEM 0x8000
        !            47: #define MF_VBEFLAGS   0xfe00
        !            48: 
        !            49: // Memory model types
        !            50: #define MM_TEXT            0x00
        !            51: #define MM_CGA             0x01
        !            52: #define MM_HERCULES        0x02
        !            53: #define MM_PLANAR          0x03
        !            54: #define MM_PACKED          0x04
        !            55: #define MM_NON_CHAIN_4_256 0x05
        !            56: #define MM_DIRECT          0x06
        !            57: #define MM_YUV             0x07
        !            58: 
        !            59: struct vgamode_s {
        !            60:     u8 memmodel;
        !            61:     u16 width;
        !            62:     u16 height;
        !            63:     u8 depth;
        !            64:     u8 cwidth;
        !            65:     u8 cheight;
        !            66:     u16 sstart;
        !            67: };
        !            68: 
        !            69: // vgafonts.c
        !            70: extern u8 vgafont8[];
        !            71: extern u8 vgafont14[];
        !            72: extern u8 vgafont16[];
        !            73: extern u8 vgafont14alt[];
        !            74: extern u8 vgafont16alt[];
        !            75: 
        !            76: // Debug settings
        !            77: #define DEBUG_VGA_POST 1
        !            78: #define DEBUG_VGA_10 3
        !            79: 
        !            80: // vgabios.c
        !            81: extern int VgaBDF;
        !            82: extern int HaveRunInit;
        !            83: #define SET_VGA(var, val) SET_FARVAR(get_global_seg(), (var), (val))
        !            84: struct carattr {
        !            85:     u8 car, attr, use_attr, pad;
        !            86: };
        !            87: struct cursorpos {
        !            88:     u8 x, y, page, pad;
        !            89: };
        !            90: int vga_bpp(struct vgamode_s *vmode_g);
        !            91: u16 calc_page_size(u8 memmodel, u16 width, u16 height);
        !            92: void save_bda_state(u16 seg, struct saveBDAstate *info);
        !            93: void restore_bda_state(u16 seg, struct saveBDAstate *info);
        !            94: struct vgamode_s *get_current_mode(void);
        !            95: int vga_set_mode(int mode, int flags);
        !            96: 
        !            97: // vgafb.c
        !            98: void vgafb_scroll(int nblines, int attr
        !            99:                   , struct cursorpos ul, struct cursorpos lr);
        !           100: void vgafb_write_char(struct cursorpos cp, struct carattr ca);
        !           101: struct carattr vgafb_read_char(struct cursorpos cp);
        !           102: void vgafb_write_pixel(u8 color, u16 x, u16 y);
        !           103: u8 vgafb_read_pixel(u16 x, u16 y);
        !           104: 
        !           105: // vbe.c
        !           106: extern u32 VBE_total_memory;
        !           107: extern u32 VBE_capabilities;
        !           108: extern u32 VBE_framebuffer;
        !           109: extern u16 VBE_win_granularity;
        !           110: #define VBE_OEM_STRING "SeaBIOS VBE(C) 2011"
        !           111: #define VBE_VENDOR_STRING "SeaBIOS Developers"
        !           112: #define VBE_PRODUCT_STRING "SeaBIOS VBE Adapter"
        !           113: #define VBE_REVISION_STRING "Rev. 1"
        !           114: struct bregs;
        !           115: void handle_104f(struct bregs *regs);
        !           116: 
        !           117: #endif // vgabios.h

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