111 lines
4.2 KiB
C
111 lines
4.2 KiB
C
#ifndef __STDVGA_H
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#define __STDVGA_H
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#include "types.h" // u8
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#include "std/vbe.h" // struct vbe_palette_entry
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// VGA registers
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#define VGAREG_ACTL_ADDRESS 0x3c0
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#define VGAREG_ACTL_WRITE_DATA 0x3c0
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#define VGAREG_ACTL_READ_DATA 0x3c1
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#define VGAREG_INPUT_STATUS 0x3c2
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#define VGAREG_WRITE_MISC_OUTPUT 0x3c2
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#define VGAREG_VIDEO_ENABLE 0x3c3
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#define VGAREG_SEQU_ADDRESS 0x3c4
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#define VGAREG_SEQU_DATA 0x3c5
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#define VGAREG_PEL_MASK 0x3c6
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#define VGAREG_DAC_STATE 0x3c7
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#define VGAREG_DAC_READ_ADDRESS 0x3c7
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#define VGAREG_DAC_WRITE_ADDRESS 0x3c8
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#define VGAREG_DAC_DATA 0x3c9
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#define VGAREG_READ_FEATURE_CTL 0x3ca
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#define VGAREG_READ_MISC_OUTPUT 0x3cc
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#define VGAREG_GRDC_ADDRESS 0x3ce
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#define VGAREG_GRDC_DATA 0x3cf
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#define VGAREG_MDA_CRTC_ADDRESS 0x3b4
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#define VGAREG_MDA_CRTC_DATA 0x3b5
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#define VGAREG_VGA_CRTC_ADDRESS 0x3d4
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#define VGAREG_VGA_CRTC_DATA 0x3d5
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#define VGAREG_MDA_WRITE_FEATURE_CTL 0x3ba
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#define VGAREG_VGA_WRITE_FEATURE_CTL 0x3da
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#define VGAREG_ACTL_RESET 0x3da
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#define VGAREG_MDA_MODECTL 0x3b8
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#define VGAREG_CGA_MODECTL 0x3d8
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#define VGAREG_CGA_PALETTE 0x3d9
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/* Video memory */
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#define SEG_GRAPH 0xA000
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#define SEG_CTEXT 0xB800
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#define SEG_MTEXT 0xB000
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// stdvga.c
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void stdvga_set_cga_background_color(u8 color);
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void stdvga_set_cga_palette(u8 palid);
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void stdvga_set_overscan_border_color(u8 color);
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u8 stdvga_get_overscan_border_color(void);
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void stdvga_set_all_palette_reg(u16 seg, u8 *data_far);
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void stdvga_get_all_palette_reg(u16 seg, u8 *data_far);
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void stdvga_set_palette_blinking(u8 enable_blink);
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void stdvga_set_palette_pagesize(u8 pal_pagesize);
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void stdvga_set_palette_page(u8 pal_page);
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void stdvga_get_palette_page(u8 *pal_pagesize, u8 *pal_page);
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void stdvga_dac_read_many(u16 seg, u8 *data_far, u8 start, int count);
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void stdvga_dac_write_many(u16 seg, u8 *data_far, u8 start, int count);
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void stdvga_perform_gray_scale_summing(u16 start, u16 count);
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void stdvga_planar4_plane(int plane);
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void stdvga_set_font_location(u8 spec);
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void stdvga_load_font(u16 seg, void *src_far, u16 count
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, u16 start, u8 destflags, u8 fontsize);
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u16 stdvga_get_crtc(void);
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struct vgamode_s;
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int stdvga_vram_ratio(struct vgamode_s *vmode_g);
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void stdvga_set_cursor_shape(u16 cursor_type);
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void stdvga_set_cursor_pos(int address);
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void stdvga_set_character_height(u8 lines);
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u16 stdvga_get_vertical_size(void);
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void stdvga_set_vertical_size(int lines);
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int stdvga_get_window(struct vgamode_s *curmode_g, int window);
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int stdvga_set_window(struct vgamode_s *curmode_g, int window, int val);
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int stdvga_minimum_linelength(struct vgamode_s *vmode_g);
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int stdvga_get_linelength(struct vgamode_s *curmode_g);
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int stdvga_set_linelength(struct vgamode_s *curmode_g, int val);
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int stdvga_get_displaystart(struct vgamode_s *curmode_g);
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int stdvga_set_displaystart(struct vgamode_s *curmode_g, int val);
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int stdvga_get_dacformat(struct vgamode_s *curmode_g);
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int stdvga_set_dacformat(struct vgamode_s *curmode_g, int val);
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int stdvga_save_restore(int cmd, u16 seg, void *data);
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void stdvga_enable_video_addressing(u8 disable);
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int stdvga_setup(void);
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// stdvgaio.c
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u8 stdvga_pelmask_read(void);
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void stdvga_pelmask_write(u8 val);
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u8 stdvga_misc_read(void);
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void stdvga_misc_write(u8 value);
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void stdvga_misc_mask(u8 off, u8 on);
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u8 stdvga_sequ_read(u8 index);
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void stdvga_sequ_write(u8 index, u8 value);
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void stdvga_sequ_mask(u8 index, u8 off, u8 on);
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u8 stdvga_grdc_read(u8 index);
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void stdvga_grdc_write(u8 index, u8 value);
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void stdvga_grdc_mask(u8 index, u8 off, u8 on);
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u8 stdvga_crtc_read(u16 crtc_addr, u8 index);
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void stdvga_crtc_write(u16 crtc_addr, u8 index, u8 value);
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void stdvga_crtc_mask(u16 crtc_addr, u8 index, u8 off, u8 on);
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u8 stdvga_attr_read(u8 index);
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void stdvga_attr_write(u8 index, u8 value);
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void stdvga_attr_mask(u8 index, u8 off, u8 on);
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u8 stdvga_attrindex_read(void);
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void stdvga_attrindex_write(u8 value);
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struct vbe_palette_entry stdvga_dac_read(u8 color);
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void stdvga_dac_write(u8 color, struct vbe_palette_entry rgb);
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#endif // stdvga.h
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