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Message-Id: <20090108151827.72f50cee.hugo@hugovil.com>
Date: Thu, 8 Jan 2009 15:18:27 -0500
From: Hugo Villeneuve <hugo@...ovil.com>
To: Florian Fainelli <florian@...nwrt.org>
Cc: linux-kernel@...r.kernel.org, linux-embedded@...r.kernel.org
Subject: Re: FPGA programming driver architecture
On Sat, 13 Dec 2008 13:58:01 +0100
Florian Fainelli <florian@...nwrt.org> wrote:
> (CC'ing linux-embedded)
>
> Salut Hugo,
>
> Le Friday 12 December 2008 21:03:14 Hugo Villeneuve, vous avez écrit :
> > Hi,
> > I have written some code to program a FPGA in Linux, for two
> > different types of boards: one uses a serial interface (SPI) and
> > the second a parallel interface. I have been able to sucessfully
> > program both boards. I'm now trying to clean my code and make it
> > more generic, as well as better in line with the Linux driver
> > model. I would also like to include it in the mainline kernel if
> > there is interest.
> ...
> What about something like that :
>
> - fpgaload-core which contains all the code that can be shared
> between the drivers like requesting firmware, providing sysfs
> attributes,
> - fpgaload-spi would handle the low-level SPI connection
> - fpgaload-par would handle the low-level parallel connection
>
> fpgaload-ser and par would register with fpgaload-core and they could
> register a fpga loading callback which is low-level specific for
> instance. Platform code would instantiate the core driver. That way,
> adding support for other loading protocols like slave serial or
> master serial can be done easily.
Yes, but how I actually implement fpgaload_core, fpgaload_ser and
fpgaload_par?
Bus driver?
class driver?
platform driver?
I am not sure how I should implement things and how each low-level
specific driver should register with the fpgaload_core driver...
Hugo V.
---------------
Hugo Villeneuve
www.hugovil.com
---------------
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