Asiliantfb (Frame Buffer) Driver

Dieu Morales dieumorales at yahoo.com
Tue Jun 22 07:21:31 EST 2004


--- Adrian Cox <adrian at humboldt.co.uk> wrote:
> The problem is that vgacon and frame buffer consoles
> are different
> things:
>
> vgacon is a console using the text modes of VGA
> cards. To stand a chance
> of working it requires the boot firmware of your
> board to execute the
> VGA BIOS code on the graphics adapter. It works on
> PCs and possibly some
> non-x86 workstations.
>
> Frame buffer consoles (fbcon) use the graphics modes
> of the video card,
> and chipset specific drivers.  I wrote the original
> asiliantfb for the
> 69030 chip. Saito.K & Jeanne replaced the 69030
> support with 69000, and
> it got into the kernel.
>
> First, try removing vgacon and checking that you
> have fbcon enabled.
> If that fails, try contacting the driver's authors.
> There's no contact
> address for them in the source, though Google finds
> one other driver by
> them with this attribution:
> MODULE_AUTHOR("Saito.K & Jeanne <ksaito at
> interface.co.jp>");
>
> - Adrian Cox
> Humboldt Solutions Ltd.

My firmware does initialize the CT69000 as an
environment option that allows what looks like VGA
mode consisting of a simple black screen with
white text.  As per some suggestions I have removed
vga_con and added fb_con but received different(worse)
results.  Without conswitchp = &fb_con I get an
exception shortly after the asiliant driver has been
initialized. And with conswitchp = &fb_con the system
hangs immediately after ppc.md.setup_arch in setup.c.




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