[SeaBIOS] [PATCH 3/5] vgabios: Claim VBE 3 support; minor VBE cleanups.

[Fred .]

With the VBE 3.0 support claimed, perhaps it is time for a new release soon?

On Tue, Feb 14, 2012 at 2:35 AM, Kevin O'Connor <kevin at koconnor.net> wrote:
> Claim support for VBE3 - that spec is actually more lenient for
> required minimum support.
>
> Signed-off-by: Kevin O'Connor <kevin at koconnor.net>
> ---
>  vgasrc/vbe.c |   18 ++++++++----------
>  1 files changed, 8 insertions(+), 10 deletions(-)
>
> diff --git a/vgasrc/vbe.c b/vgasrc/vbe.c
> index 505cb61..852edbc 100644
> --- a/vgasrc/vbe.c
> +++ b/vgasrc/vbe.c
> @@ -11,7 +11,7 @@
>  #include "bregs.h" // struct bregs
>  #include "vbe.h" // struct vbe_info
>  #include "util.h" // dprintf
> -#include "biosvar.h" // get_global_set
> +#include "biosvar.h" // GET_GLOBAL
>  #include "vgahw.h" // vgahw_set_mode
>
>  u32 VBE_total_memory VAR16 = 256 * 1024;
> @@ -37,7 +37,7 @@ vbe_104f00(struct bregs *regs)
>
>     SET_FARVAR(seg, info->signature, VESA_SIGNATURE);
>
> -    SET_FARVAR(seg, info->version, 0x0200);
> +    SET_FARVAR(seg, info->version, 0x0300);
>
>     SET_FARVAR(seg, info->oem_string,
>             SEGOFF(get_global_seg(), (u32)VBE_OEM_STRING));
> @@ -47,7 +47,7 @@ vbe_104f00(struct bregs *regs)
>     u16 *destmode = (void*)info->reserved;
>     SET_FARVAR(seg, info->video_mode, SEGOFF(seg, (u32)destmode));
>
> -    /* Total memory (in 64 blocks) */
> +    /* Total memory (in 64k blocks) */
>     SET_FARVAR(seg, info->total_memory
>                , GET_GLOBAL(VBE_total_memory) / (64*1024));
>
> @@ -77,7 +77,7 @@ vbe_104f01(struct bregs *regs)
>     struct vgamode_s *vmode_g = vgahw_find_mode(mode);
>     if (! vmode_g) {
>         dprintf(1, "VBE mode %x not found\n", mode);
> -        regs->ax = 0x0100;
> +        regs->ax = 0x014f;
>         return;
>     }
>
> @@ -88,10 +88,7 @@ vbe_104f01(struct bregs *regs)
>                     VBE_MODE_ATTRIBUTE_GRAPHICS_MODE |
>                     VBE_MODE_ATTRIBUTE_NOT_VGA_COMPATIBLE;
>     u32 framebuffer = GET_GLOBAL(VBE_framebuffer);
> -    int depth = GET_GLOBAL(vmode_g->depth);
> -    if (depth == 4)
> -        mode_attr |= VBE_MODE_ATTRIBUTE_TTY_BIOS_SUPPORT;
> -    else if (framebuffer)
> +    if (framebuffer)
>         mode_attr |= VBE_MODE_ATTRIBUTE_LINEAR_FRAME_BUFFER_MODE;
>     SET_FARVAR(seg, info->mode_attributes, mode_attr);
>     SET_FARVAR(seg, info->winA_attributes,
> @@ -114,13 +111,14 @@ vbe_104f01(struct bregs *regs)
>     SET_FARVAR(seg, info->yres, height);
>     SET_FARVAR(seg, info->xcharsize, GET_GLOBAL(vmode_g->cwidth));
>     SET_FARVAR(seg, info->ycharsize, GET_GLOBAL(vmode_g->cheight));
> +    int depth = GET_GLOBAL(vmode_g->depth);
>     int planes = (depth == 4) ? 4 : 1;
>     SET_FARVAR(seg, info->planes, planes);
>     SET_FARVAR(seg, info->bits_per_pixel, depth);
>     SET_FARVAR(seg, info->banks, 1);
>     SET_FARVAR(seg, info->mem_model, GET_GLOBAL(vmode_g->memmodel));
>     SET_FARVAR(seg, info->bank_size, 0);
> -    u32 pages = GET_GLOBAL(VBE_total_memory) / (height * linesize);
> +    u32 pages = GET_GLOBAL(VBE_total_memory) / ALIGN(height * linesize, 64*1024);
>     SET_FARVAR(seg, info->pages, (pages / planes) - 1);
>     SET_FARVAR(seg, info->reserved0, 1);
>
> @@ -259,7 +257,7 @@ vbe_104f05(struct bregs *regs)
>     regs->ax = 0x004f;
>     return;
>  fail:
> -    regs->ax = 0x0100;
> +    regs->ax = 0x014f;
>  }
>
>  static void
> --
> 1.7.6.5
>
>
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