linux-fbdev-devel

[Linux-fbdev-devel] New api wrapper.

[James S. <jsi...@tr...>]

Hi!

  I have a patch that provides a wrapper for the new api avaliable for
download. http://www.transvirtual.com/~jsimmons/newapi.diff.gz. It is
quite big. Pretty much it has a second generation of fbgen. Actually I was
thinking was if we could actually change fbgen gradually over ot the new
api this would be a better approach. I need to work with the people how
wrote fbdev using fbgen. So please step forward. 

Re: [Linux-fbdev-devel] New api wrapper.

[Romain D. <do...@ir...>]

James Simmons wrote:

>   I have a patch that provides a wrapper for the new api avaliable for
> download. http://www.transvirtual.com/~jsimmons/newapi.diff.gz. It is
> quite big. Pretty much it has a second generation of fbgen. Actually I was
> thinking was if we could actually change fbgen gradually over ot the new
> api this would be a better approach. I need to work with the people how
> wrote fbdev using fbgen. So please step forward.

I understand this wrapper allow a Runy-ified driver to be used
under k2ernel 2.4 ? THat would be cool.

pm3fb use fbgen. I'll port as soon as it's possible (I need a ppc-
compatible 2.4.5+ kernel before being able to test it). I can
add testing of this wrapper on my TODO list...

-- 
DOLBEAU Romain               | l'histoire est entierement vraie, puisque
ENS Cachan / Ker Lann        |     je l'ai imaginee d'un bout a l'autre
do...@ir...             |           -- Boris Vian

Re: [Linux-fbdev-devel] New api wrapper.

[Romain D. <do...@ir...>]

Romain Dolbeau wrote:

> pm3fb use fbgen. I'll port as soon as it's possible (I need a ppc-
> compatible 2.4.5+ kernel before being able to test it). I can

BenH just updated his tree to 2.4.6pre3

Unfortunately Ruby won't work, there's structural change in 
linux/rch/ppc/boot (everything in subdirectory) and the Ruby
Makefile barf... (sigh)

So Ruby+ppc+pm3 will have to wait a bit more :-(

-- 
DOLBEAU Romain               | l'histoire est entierement vraie, puisque
ENS Cachan / Ker Lann        |     je l'ai imaginee d'un bout a l'autre
do...@ir...             |           -- Boris Vian

Re: [Linux-fbdev-devel] New api wrapper.

[James S. <jsi...@tr...>]

> Romain Dolbeau wrote:
> 
> > pm3fb use fbgen. I'll port as soon as it's possible (I need a ppc-
> > compatible 2.4.5+ kernel before being able to test it). I can
> 
> BenH just updated his tree to 2.4.6pre3
> 
> Unfortunately Ruby won't work, there's structural change in 
> linux/rch/ppc/boot (everything in subdirectory) and the Ruby
> Makefile barf... (sigh)
> 
> So Ruby+ppc+pm3 will have to wait a bit more :-(

The patch I have at my web site should work. As for ruby against ppc I
haven't had the change to sync it up. Especially since the ppc tree is one
of the most complex trees. I'm just getting around to having it work with
the arm tree.

Re: [Linux-fbdev-devel] New api wrapper.

[Scott A M. <sam...@co...>]

James Simmons wrote:

>   I have a patch that provides a wrapper for the new api avaliable for
> download. http://www.transvirtual.com/~jsimmons/newapi.diff.gz. It is
> quite big. Pretty much it has a second generation of fbgen. Actually I was
> thinking was if we could actually change fbgen gradually over ot the new
> api this would be a better approach. I need to work with the people how
> wrote fbdev using fbgen. So please step forward.
> 

I just upgraded to Ralph's Mips 2.4.5 tree.

My console on fb appears to be working...

I have a simple program that maps a frame buffer into user space and
draws an image onto the fb.

This program worked fine under 2.4.3 however under 2.4.5 the program
runs but nothing appears on the FB. The memory I am writing to does not
appear to be the frame buffer.

I assume this is the result of the API change?

X cause the kernel to lock with no messages I assume because of the same
API change.


Will the above link be of use to me or should I start with:

>We have started a secondary tree for linux mips. This tree will
>be to SGI mips tree as Alan Cox's tree is to linus branch. We will test
>and play with "experimental patches" and then in time hand them off to the
>main branch Ralf Baechle maintains. Also one of the main reasons for this
>branch was to unite several of the mips trees into one place. Anyones
>patches (if good) are welcomed. The site is 
>
>http://www.sf.net/projects/linux-mips


Thanks for any guidance

-- 
Scott A. McConnell

Re: [Linux-fbdev-devel] New api wrapper.

[James S. <jsi...@tr...>]

> I just upgraded to Ralph's Mips 2.4.5 tree.
> 
> My console on fb appears to be working...

Do a cat /dev/urandom > /dev/fb0. If this works then the driver works and
somehow the mips tree broke mmap.

> I assume this is the result of the API change?

The api changes went in months ago. The wrapper doesn't touch the fbdev
internals. It just acts as a brigde between both apis. BTW it hasn't gone
in to my knowledge. 

> >http://www.sf.net/projects/linux-mips

So I see you are playing with the secondary mips tree :-) 

Re: [Linux-fbdev-devel] New api wrapper.

[Sven L. <lu...@dp...>]

On Tue, Jun 26, 2001 at 01:13:10PM -0700, Scott A McConnell wrote:
> James Simmons wrote:
> 
> >   I have a patch that provides a wrapper for the new api avaliable for
> > download. http://www.transvirtual.com/~jsimmons/newapi.diff.gz. It is
> > quite big. Pretty much it has a second generation of fbgen. Actually I was
> > thinking was if we could actually change fbgen gradually over ot the new
> > api this would be a better approach. I need to work with the people how
> > wrote fbdev using fbgen. So please step forward.
> > 
> 
> I just upgraded to Ralph's Mips 2.4.5 tree.
> 
> My console on fb appears to be working...
> 
> I have a simple program that maps a frame buffer into user space and
> draws an image onto the fb.
> 
> This program worked fine under 2.4.3 however under 2.4.5 the program
> runs but nothing appears on the FB. The memory I am writing to does not
> appear to be the frame buffer.
> 
> I assume this is the result of the API change?

James, ...

maybe you should include such a little programm using the new API, or
something such ?

Friendly

Sven Luther

Re: [Linux-fbdev-devel] New api wrapper.

[James S. <jsi...@tr...>]

> > I assume this is the result of the API change?
> 
> James, ...
> 
> maybe you should include such a little programm using the new API, or
> something such ?

The problem is from a bug in mmap on the mips platform. The "new" api is
internal to the kernel. Userland doesn't see any changes. I will post
fbgen2 today.