diff options
| author | James Simmons <jsimmons@maxwell.earthlink.net> | 2002-12-04 01:10:40 -0800 |
|---|---|---|
| committer | James Simmons <jsimmons@maxwell.earthlink.net> | 2002-12-04 01:10:40 -0800 |
| commit | 4ff60c0faf5c0e00bcbb132eb0ece5bff9bd9252 (patch) | |
| tree | 99ba22bf641929e8aebff316fe193785d9390472 /include/linux/fb.h | |
| parent | 23dda298a45e6a8e3b2bf01136beb699d6d96598 (diff) | |
Supprt for switching hardware from/to vga text mode.
Diffstat (limited to 'include/linux/fb.h')
| -rw-r--r-- | include/linux/fb.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/include/linux/fb.h b/include/linux/fb.h index ec7e3db0c24b..a1a9dbe04f1a 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -321,6 +321,37 @@ struct fb_cursor { struct fb_image image; /* Cursor image */ }; +/* VGA State Save and Restore */ +#define VGA_SAVE_FONT0 1 /* save/restore plane 2 fonts */ +#define VGA_SAVE_FONT1 2 /* save/restore plane 3 fonts */ +#define VGA_SAVE_TEXT 4 /* save/restore plane 0/1 fonts */ +#define VGA_SAVE_FONTS 7 /* save/restore all fonts */ +#define VGA_SAVE_MODE 8 /* save/restore video mode */ +#define VGA_SAVE_CMAP 16 /* save/restore color map/DAC */ + +struct fb_vgastate { + caddr_t vgabase; /* mmio base, if supported */ + __u32 flags; /* what state/s to save (see VGA_SAVE_*) */ + __u32 depth; /* current fb depth, not important */ + __u32 num_attr; /* number of att registers, 0 for default */ + __u32 num_crtc; /* number of crt registers, 0 for default */ + __u32 num_gfx; /* number of gfx registers, 0 for default */ + __u32 num_seq; /* number of seq registers, 0 for default */ + caddr_t fbbase; /* -- DO NOT ALTER STARTING HERE -- */ + __u8 *vga_font0; + __u8 *vga_font1; + __u8 *vga_text; + __u8 *vga_cmap; + __u8 *attr; + __u8 *crtc; + __u8 *gfx; + __u8 *seq; + __u8 misc; +}; + +extern int fb_save_vga(struct fb_vgastate *state); +extern int fb_restore_vga(struct fb_vgastate *state); + #ifdef __KERNEL__ #include <linux/fs.h> |