| #ifndef __STDVGA_H |
| #define __STDVGA_H |
| |
| #include "types.h" // u8 |
| |
| // VGA registers |
| #define VGAREG_ACTL_ADDRESS 0x3c0 |
| #define VGAREG_ACTL_WRITE_DATA 0x3c0 |
| #define VGAREG_ACTL_READ_DATA 0x3c1 |
| |
| #define VGAREG_INPUT_STATUS 0x3c2 |
| #define VGAREG_WRITE_MISC_OUTPUT 0x3c2 |
| #define VGAREG_VIDEO_ENABLE 0x3c3 |
| #define VGAREG_SEQU_ADDRESS 0x3c4 |
| #define VGAREG_SEQU_DATA 0x3c5 |
| |
| #define VGAREG_PEL_MASK 0x3c6 |
| #define VGAREG_DAC_STATE 0x3c7 |
| #define VGAREG_DAC_READ_ADDRESS 0x3c7 |
| #define VGAREG_DAC_WRITE_ADDRESS 0x3c8 |
| #define VGAREG_DAC_DATA 0x3c9 |
| |
| #define VGAREG_READ_FEATURE_CTL 0x3ca |
| #define VGAREG_READ_MISC_OUTPUT 0x3cc |
| |
| #define VGAREG_GRDC_ADDRESS 0x3ce |
| #define VGAREG_GRDC_DATA 0x3cf |
| |
| #define VGAREG_MDA_CRTC_ADDRESS 0x3b4 |
| #define VGAREG_MDA_CRTC_DATA 0x3b5 |
| #define VGAREG_VGA_CRTC_ADDRESS 0x3d4 |
| #define VGAREG_VGA_CRTC_DATA 0x3d5 |
| |
| #define VGAREG_MDA_WRITE_FEATURE_CTL 0x3ba |
| #define VGAREG_VGA_WRITE_FEATURE_CTL 0x3da |
| #define VGAREG_ACTL_RESET 0x3da |
| |
| #define VGAREG_MDA_MODECTL 0x3b8 |
| #define VGAREG_CGA_MODECTL 0x3d8 |
| #define VGAREG_CGA_PALETTE 0x3d9 |
| |
| /* Video memory */ |
| #define SEG_GRAPH 0xA000 |
| #define SEG_CTEXT 0xB800 |
| #define SEG_MTEXT 0xB000 |
| |
| /* |
| * Tables of default values for each mode |
| */ |
| #define TEXT 0x80 |
| |
| #define CTEXT (0x00 | TEXT) |
| #define MTEXT (0x01 | TEXT) |
| #define CGA 0x02 |
| #define PLANAR1 0x03 |
| #define PLANAR4 0x04 |
| #define LINEAR8 0x05 |
| |
| // for SVGA |
| #define LINEAR15 0x10 |
| #define LINEAR16 0x11 |
| #define LINEAR24 0x12 |
| #define LINEAR32 0x13 |
| |
| struct vgamode_s { |
| u8 svgamode; |
| u8 memmodel; /* CTEXT,MTEXT,CGA,PL1,PL2,PL4,P8,P15,P16,P24,P32 */ |
| u8 twidth; |
| u8 theight; |
| u8 cheight; |
| u8 pixbits; |
| u16 sstart; |
| u16 slength; |
| |
| u8 pelmask; |
| u8 *dac; |
| u16 dacsize; |
| u8 *sequ_regs; |
| u8 miscreg; |
| u8 *crtc_regs; |
| u8 *actl_regs; |
| u8 *grdc_regs; |
| }; |
| |
| struct saveVideoHardware { |
| u8 sequ_index; |
| u8 crtc_index; |
| u8 grdc_index; |
| u8 actl_index; |
| u8 feature; |
| u8 sequ_regs[4]; |
| u8 sequ0; |
| u8 crtc_regs[25]; |
| u8 actl_regs[20]; |
| u8 grdc_regs[9]; |
| u16 crtc_addr; |
| u8 plane_latch[4]; |
| }; |
| |
| struct saveDACcolors { |
| u8 rwmode; |
| u8 peladdr; |
| u8 pelmask; |
| u8 dac[768]; |
| u8 color_select; |
| }; |
| |
| void stdvga_screen_disable(void); |
| void stdvga_screen_enable(void); |
| void stdvga_set_border_color(u8 color); |
| void stdvga_set_overscan_border_color(u8 color); |
| u8 stdvga_get_overscan_border_color(void); |
| void stdvga_set_palette(u8 palid); |
| void stdvga_set_single_palette_reg(u8 reg, u8 val); |
| u8 stdvga_get_single_palette_reg(u8 reg); |
| void stdvga_set_all_palette_reg(u16 seg, u8 *data_far); |
| void stdvga_get_all_palette_reg(u16 seg, u8 *data_far); |
| void stdvga_toggle_intensity(u8 flag); |
| void stdvga_select_video_dac_color_page(u8 flag, u8 data); |
| void stdvga_read_video_dac_state(u8 *pmode, u8 *curpage); |
| void stdvga_set_dac_regs(u16 seg, u8 *data_far, u8 start, int count); |
| void stdvga_get_dac_regs(u16 seg, u8 *data_far, u8 start, int count); |
| void stdvga_set_pel_mask(u8 val); |
| u8 stdvga_get_pel_mask(void); |
| void stdvga_save_dac_state(u16 seg, struct saveDACcolors *info); |
| void stdvga_restore_dac_state(u16 seg, struct saveDACcolors *info); |
| void stdvga_sequ_write(u8 index, u8 value); |
| void stdvga_grdc_write(u8 index, u8 value); |
| void stdvga_set_text_block_specifier(u8 spec); |
| void get_font_access(void); |
| void release_font_access(void); |
| void stdvga_set_cursor_shape(u8 start, u8 end); |
| void stdvga_set_active_page(u16 address); |
| void stdvga_set_cursor_pos(u16 address); |
| void stdvga_set_scan_lines(u8 lines); |
| u16 stdvga_get_vde(void); |
| void stdvga_save_state(u16 seg, struct saveVideoHardware *info); |
| void stdvga_restore_state(u16 seg, struct saveVideoHardware *info); |
| void stdvga_set_mode(struct vgamode_s *vmode_g); |
| void stdvga_enable_video_addressing(u8 disable); |
| void stdvga_init(void); |
| |
| #endif // stdvga.h |