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Annotation of qemu/roms/qemu-palcode/vgatables.h, revision 1.1

1.1     ! root        1: /* VGA register definitions
        !             2: 
        !             3:    This file is copied (somewhat) intact from SeaBIOS.
        !             4:    It is covered by the GNU Lesser General Public License, v3.
        !             5: 
        !             6:    You should have received a copy of the GNU Lesser General Public License
        !             7:    along with this program; see the file COPYING.  If not see
        !             8:    <http://www.gnu.org/licenses/>.  */
        !             9: 
        !            10: #ifndef VGATABLES_H
        !            11: #define VGATABLES_H
        !            12: 
        !            13: typedef uint8_t u8;
        !            14: typedef uint16_t u16;
        !            15: 
        !            16: 
        !            17: /*
        !            18:  *
        !            19:  * VGA registers
        !            20:  *
        !            21:  */
        !            22: #define VGAREG_ACTL_ADDRESS            0x3c0
        !            23: #define VGAREG_ACTL_WRITE_DATA         0x3c0
        !            24: #define VGAREG_ACTL_READ_DATA          0x3c1
        !            25: 
        !            26: #define VGAREG_INPUT_STATUS            0x3c2
        !            27: #define VGAREG_WRITE_MISC_OUTPUT       0x3c2
        !            28: #define VGAREG_VIDEO_ENABLE            0x3c3
        !            29: #define VGAREG_SEQU_ADDRESS            0x3c4
        !            30: #define VGAREG_SEQU_DATA               0x3c5
        !            31: 
        !            32: #define VGAREG_PEL_MASK                0x3c6
        !            33: #define VGAREG_DAC_STATE               0x3c7
        !            34: #define VGAREG_DAC_READ_ADDRESS        0x3c7
        !            35: #define VGAREG_DAC_WRITE_ADDRESS       0x3c8
        !            36: #define VGAREG_DAC_DATA                0x3c9
        !            37: 
        !            38: #define VGAREG_READ_FEATURE_CTL        0x3ca
        !            39: #define VGAREG_READ_MISC_OUTPUT        0x3cc
        !            40: 
        !            41: #define VGAREG_GRDC_ADDRESS            0x3ce
        !            42: #define VGAREG_GRDC_DATA               0x3cf
        !            43: 
        !            44: #define VGAREG_MDA_CRTC_ADDRESS        0x3b4
        !            45: #define VGAREG_MDA_CRTC_DATA           0x3b5
        !            46: #define VGAREG_VGA_CRTC_ADDRESS        0x3d4
        !            47: #define VGAREG_VGA_CRTC_DATA           0x3d5
        !            48: 
        !            49: #define VGAREG_MDA_WRITE_FEATURE_CTL   0x3ba
        !            50: #define VGAREG_VGA_WRITE_FEATURE_CTL   0x3da
        !            51: #define VGAREG_ACTL_RESET              0x3da
        !            52: 
        !            53: #define VGAREG_MDA_MODECTL             0x3b8
        !            54: #define VGAREG_CGA_MODECTL             0x3d8
        !            55: #define VGAREG_CGA_PALETTE             0x3d9
        !            56: 
        !            57: /* Video memory */
        !            58: #define SEG_GRAPH                      0xA000
        !            59: #define SEG_CTEXT                      0xB800
        !            60: #define SEG_MTEXT                      0xB000
        !            61: 
        !            62: /*
        !            63:  * Tables of default values for each mode
        !            64:  */
        !            65: #define TEXT       0x80
        !            66: 
        !            67: #define CTEXT      (0x00 | TEXT)
        !            68: #define MTEXT      (0x01 | TEXT)
        !            69: #define CGA        0x02
        !            70: #define PLANAR1    0x03
        !            71: #define PLANAR4    0x04
        !            72: #define LINEAR8    0x05
        !            73: 
        !            74: // for SVGA
        !            75: #define LINEAR15   0x10
        !            76: #define LINEAR16   0x11
        !            77: #define LINEAR24   0x12
        !            78: #define LINEAR32   0x13
        !            79: 
        !            80: #define SCREEN_IO_START(x,y,p) (((((x)*(y)) | 0x00ff) + 1) * (p))
        !            81: #define SCREEN_MEM_START(x,y,p) SCREEN_IO_START(((x)*2),(y),(p))
        !            82: 
        !            83: /* standard BIOS Video Parameter Table */
        !            84: struct VideoParam_s {
        !            85:     u8 twidth;
        !            86:     u8 theightm1;
        !            87:     u8 cheight;
        !            88:     u16 slength;
        !            89:     u8 sequ_regs[4];
        !            90:     u8 miscreg;
        !            91:     u8 crtc_regs[25];
        !            92:     u8 actl_regs[20];
        !            93:     u8 grdc_regs[9];
        !            94: } PACKED;
        !            95: 
        !            96: struct vgamode_s {
        !            97:     u8 svgamode;
        !            98:     struct VideoParam_s *vparam;
        !            99:     u8 memmodel;    /* CTEXT,MTEXT,CGA,PL1,PL2,PL4,P8,P15,P16,P24,P32 */
        !           100:     u8 pixbits;
        !           101:     u16 sstart;
        !           102:     u8 pelmask;
        !           103:     u8 *dac;
        !           104:     u16 dacsize;
        !           105: };
        !           106: 
        !           107: struct saveVideoHardware {
        !           108:     u8 sequ_index;
        !           109:     u8 crtc_index;
        !           110:     u8 grdc_index;
        !           111:     u8 actl_index;
        !           112:     u8 feature;
        !           113:     u8 sequ_regs[4];
        !           114:     u8 sequ0;
        !           115:     u8 crtc_regs[25];
        !           116:     u8 actl_regs[20];
        !           117:     u8 grdc_regs[9];
        !           118:     u16 crtc_addr;
        !           119:     u8 plane_latch[4];
        !           120: };
        !           121: 
        !           122: struct saveBDAstate {
        !           123:     u8 video_mode;
        !           124:     u16 video_cols;
        !           125:     u16 video_pagesize;
        !           126:     u16 crtc_address;
        !           127:     u8 video_rows;
        !           128:     u16 char_height;
        !           129:     u8 video_ctl;
        !           130:     u8 video_switches;
        !           131:     u8 modeset_ctl;
        !           132:     u16 cursor_type;
        !           133:     u16 cursor_pos[8];
        !           134:     u16 video_pagestart;
        !           135:     u8 video_page;
        !           136: #if 0
        !           137:     /* current font */
        !           138:     struct segoff_s font0;
        !           139:     struct segoff_s font1;
        !           140: #endif
        !           141: };
        !           142: 
        !           143: struct saveDACcolors {
        !           144:     u8 rwmode;
        !           145:     u8 peladdr;
        !           146:     u8 pelmask;
        !           147:     u8 dac[768];
        !           148:     u8 color_select;
        !           149: };
        !           150: 
        !           151: // vgatables.c
        !           152: struct vgamode_s *find_vga_entry(u8 mode);
        !           153: extern u16 video_save_pointer_table[];
        !           154: extern struct VideoParam_s video_param_table[];
        !           155: extern u8 static_functionality[];
        !           156: 
        !           157: // vgafonts.c
        !           158: extern u8 vgafont8[];
        !           159: extern u8 vgafont14[];
        !           160: extern u8 vgafont16[];
        !           161: extern u8 vgafont14alt[];
        !           162: extern u8 vgafont16alt[];
        !           163: 
        !           164: // vga.c
        !           165: struct carattr {
        !           166:     u8 car, attr, use_attr;
        !           167: };
        !           168: struct cursorpos {
        !           169:     u8 x, y, page;
        !           170: };
        !           171: 
        !           172: // vgafb.c
        !           173: void clear_screen(struct vgamode_s *vmode_g);
        !           174: void vgafb_scroll(int nblines, int attr
        !           175:                   , struct cursorpos ul, struct cursorpos lr);
        !           176: void vgafb_write_char(struct cursorpos cp, struct carattr ca);
        !           177: struct carattr vgafb_read_char(struct cursorpos cp);
        !           178: void vgafb_write_pixel(u8 color, u16 x, u16 y);
        !           179: u8 vgafb_read_pixel(u16 x, u16 y);
        !           180: void vgafb_load_font(u16 seg, void *src_far, u16 count
        !           181:                      , u16 start, u8 destflags, u8 fontsize);
        !           182: 
        !           183: // vgaio.c
        !           184: void vgahw_screen_disable(void);
        !           185: void vgahw_screen_enable(void);
        !           186: void vgahw_set_border_color(u8 color);
        !           187: void vgahw_set_overscan_border_color(u8 color);
        !           188: u8 vgahw_get_overscan_border_color(void);
        !           189: void vgahw_set_palette(u8 palid);
        !           190: void vgahw_set_single_palette_reg(u8 reg, u8 val);
        !           191: u8 vgahw_get_single_palette_reg(u8 reg);
        !           192: void vgahw_set_all_palette_reg(u8 *data);
        !           193: void vgahw_get_all_palette_reg(u8 *data);
        !           194: void vgahw_toggle_intensity(u8 flag);
        !           195: void vgahw_select_video_dac_color_page(u8 flag, u8 data);
        !           196: void vgahw_read_video_dac_state(u8 *pmode, u8 *curpage);
        !           197: void vgahw_set_dac_regs(u8 *data, u8 start, int count);
        !           198: void vgahw_get_dac_regs(u8 *data, u8 start, int count);
        !           199: void vgahw_set_pel_mask(u8 val);
        !           200: u8 vgahw_get_pel_mask(void);
        !           201: void vgahw_save_dac_state(struct saveDACcolors *info);
        !           202: void vgahw_restore_dac_state(struct saveDACcolors *info);
        !           203: void vgahw_sequ_write(u8 index, u8 value);
        !           204: void vgahw_grdc_write(u8 index, u8 value);
        !           205: void vgahw_set_text_block_specifier(u8 spec);
        !           206: void get_font_access(void);
        !           207: void release_font_access(void);
        !           208: void vgahw_set_cursor_shape(u8 start, u8 end);
        !           209: void vgahw_set_active_page(u16 address);
        !           210: void vgahw_set_cursor_pos(u16 address);
        !           211: void vgahw_set_scan_lines(u8 lines);
        !           212: u16 vgahw_get_vde(void);
        !           213: void vgahw_save_state(struct saveVideoHardware *info);
        !           214: void vgahw_restore_state(struct saveVideoHardware *info);
        !           215: void vgahw_set_mode(struct VideoParam_s *vparam_g);
        !           216: void vgahw_enable_video_addressing(u8 disable);
        !           217: void vgahw_init(void);
        !           218: 
        !           219: // clext.c
        !           220: void cirrus_set_video_mode(u8 mode);
        !           221: void cirrus_init(void);
        !           222: 
        !           223: #endif // vgatables.h

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