From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-wi0-x230.google.com ([2a00:1450:400c:c05::230]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1YIOY6-0001qy-8R for barebox@lists.infradead.org; Mon, 02 Feb 2015 21:28:51 +0000 Received: by mail-wi0-f176.google.com with SMTP id bs8so20012937wib.3 for ; Mon, 02 Feb 2015 13:28:27 -0800 (PST) Date: Mon, 2 Feb 2015 22:28:24 +0100 From: Alexander Aring Message-ID: <20150202212821.GB2009@omega> References: <1422195690-20676-1-git-send-email-antonynpavlov@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1422195690-20676-1-git-send-email-antonynpavlov@gmail.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: Re: [RFC] [JUST DEMO] commands: implement 'fbputs' command To: Antony Pavlov Cc: barebox@lists.infradead.org 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