From: Alexander Aring <alex.aring@gmail.com>
To: Antony Pavlov <antonynpavlov@gmail.com>
Cc: barebox@lists.infradead.org
Subject: Re: [RFC] [JUST DEMO] commands: implement 'fbputs' command
Date: Mon, 2 Feb 2015 22:28:24 +0100 [thread overview]
Message-ID: <20150202212821.GB2009@omega> (raw)
In-Reply-To: <1422195690-20676-1-git-send-email-antonynpavlov@gmail.com>
Hi,
On Sun, Jan 25, 2015 at 05:21:30PM +0300, Antony Pavlov wrote:
> Mainline barebox at the moment has no framebuffer
> console support.
> The 'fbputs' demo command displays a text string
> on fb device.
>
> This quick-n-dirty patch demonstates that barebox
> framebuffer console can be easely realized.
>
> I'm awaiting your comments!
>
this mail is not related to your fputs implementation but I had some
really nice idea if we get a console framebuffer feature.
My friend Werner Almesberger build ~4 years ago a solution for
bitbanging VGA on a SD card slot and he said that this should probaly
work on each SD card controller (if you have more than one or just booting
from other source than sd card).
There was a hackaday article about that [0]. Some embedded boards don't
have any video output but an sd card output.
So over some self builded SD to VGA cables everyone gets framebuffer
support in babrebox, he makes all stuff open. See [1]. There exist also
some software parts at [2] to support this interface under linux.
Maybe, we can grab some stuff there and add a generic barebox
framebuffer driver to do some VGA to SD card slot connection. (Don't
know how much possible that is currently).
... or I just getting into a crazy idea to support a cool framebuffer
interface. I mean, we don't need fancy color stuff or doing a very fast
interface, just printing some fonts stuff.
There exist also some "version 2 of this SD card slot to VGA connection"
see [3].
- Alex
[0] http://hackaday.com/2011/05/10/bit-banging-vga-from-an-sd-card-slot/
[1] http://downloads.qi-hardware.com/people/werner/ubb/vga/web/
[2] http://projects.qi-hardware.com/index.php/p/ben-blinkenlights/source/tree/master/ubb-vga
[3] http://discussion.en.qi-hardware.narkive.com/XyzZEmPH/ubb-vga-version-2-first-impression
_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox
prev parent reply other threads:[~2015-02-02 21:28 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-25 14:21 Antony Pavlov
2015-01-26 8:14 ` Sascha Hauer
2015-01-26 8:55 ` Jean-Christophe PLAGNIOL-VILLARD
2015-01-26 9:20 ` Antony Pavlov
2015-02-02 8:46 ` Antony Pavlov
2015-02-02 21:28 ` Alexander Aring [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20150202212821.GB2009@omega \
--to=alex.aring@gmail.com \
--cc=antonynpavlov@gmail.com \
--cc=barebox@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox