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Diffstat (limited to 'video/vesa.c')
| -rw-r--r-- | video/vesa.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/video/vesa.c b/video/vesa.c index 2addea7..0859f19 100644 --- a/video/vesa.c +++ b/video/vesa.c @@ -50,6 +50,26 @@ void vesa_set_physbase(uint32_t addr) VbeModeInfoBlock->physbase=addr; } + // + // We want to get output to the screen as fast as possible! + // + // Our Fool-Boot-Loader did set up VESA already for us. + // The desired VESA mode is hardcoded in [boot/mbr.asm]. + // + // The [vesa_init(...)] function requires: + // + // * the addresses of the vbeinfo struct + // * the address of the vbemodeinfo struct (for selected mode). + // * Fool Font loaded inside ramimage + // + // The first two paramters are hardcoded in [boot/mbr.asm], + // while the last one is set in the Makefile. The font binary + // is integrated in the kernel image. + // + // this function returns the physical base address of + // our video memory + // + uint32_t vesa_init(vbeinfo *info,vbemodeinfo *mode,foolfont *rawfont) { //the only functionallu important init lines! (rest is log) |