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From: Kirill Kuprijanov <elephantenlein@gmail.com>
To: grub-devel@gnu.org
Subject: Re: LPT
Date: Thu, 10 Feb 2011 21:57:36 +0300	[thread overview]
Message-ID: <ij1cf0$68a$1@dough.gmane.org> (raw)
In-Reply-To: <4D07FC37.1080601@gmail.com>

Hello,

so I'm nearly finished with couple of modules:

1. isa_lpt - to do the direct business with usual LPT ports
2. lpt - to interface any number of usual and unusual (say, PCI add-on cards) ports
3. t6963 - very special module to show pictures on my LCD (with internal toshiba 6963-compatible 
controller). This is where I gave up doing things 'the universal' way and had lots of distinct 
things (like pixel size and controller interface of the LCD).

Now I have two more question:
1. how to make delays of 200ns in code?
Oh, yes, I've noticed there is a function to make microsecond waits, but still, is there a way to 
make nanosecond wait?

2. what to do next? I have a local branch of bazaar repo and commit to it. What to do next with it?

On 15.12.2010 02:22, Vladimir 'φ-coder/phcoder' Serbinenko wrote:
> On 12/15/2010 12:06 AM, Jordan wrote:
>> Kirill,
>>
>> Creating a new module is the easy part.  As a newbie myself, recently I
>> found this blog helpful: http://blog.fpmurphy.com/2010/06/grub2-modules.html
>> .
>>
>> As far as writing C or assembly code to talk to the LPT port, there are
>> plenty of articles out there (like this one:
>> http://logix4u.net/Legacy_Ports/Parallel_Port/A_tutorial_on_Parallel_port_In
>> terfacing.html ) that show what I/O addresses are generally used for what.
>>
>>
> If you use any external code (there shouldn't be any need), please first
> tell which code it is, so we can check for license compatibility
>> Jordan Strub
>>
>> -----Original Message-----
>> From: grub-devel-bounces+jordan=tystent.net@gnu.org
>> [mailto:grub-devel-bounces+jordan=tystent.net@gnu.org] On Behalf Of Kirill
>> Kuprijanov
>> Sent: Tuesday, December 14, 2010 12:55 PM
>> To: grub-devel@gnu.org
>> Subject: LPT
>>
>> Hello,
>>
>> I have a motherboard with LCD indicator attached to it's LPT port. I would
>> like to make grub show
>> some early splash screen on it. All the things regarding protocol and pin
>> assignments are ok, as I
>> already have a programm to show stuff on LCD from OS (Debian). So the
>> question is "how to make a
>> grub module that is capable of setting levels on LPT pins?" and a second one
>> is "how to make use of
>> it during bootup procedure?
>>
>> Thanks in advance,
>> Kirill
>>
>>
>> _______________________________________________
>> Grub-devel mailing list
>> Grub-devel@gnu.org
>> http://lists.gnu.org/mailman/listinfo/grub-devel
>>
>>
>>
>> _______________________________________________
>> Grub-devel mailing list
>> Grub-devel@gnu.org
>> http://lists.gnu.org/mailman/listinfo/grub-devel
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>>
>
>
>
>
> _______________________________________________
> Grub-devel mailing list
> Grub-devel@gnu.org
> http://lists.gnu.org/mailman/listinfo/grub-devel




  reply	other threads:[~2011-02-10 18:59 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-14 19:54 LPT Kirill Kuprijanov
2010-12-14 20:23 ` LPT Vladimir 'φ-coder/phcoder' Serbinenko
2011-01-07 14:18   ` LPT Kirill Kuprijanov
2011-01-07 14:34     ` LPT Vladimir 'φ-coder/phcoder' Serbinenko
2010-12-14 23:06 ` LPT Jordan
2010-12-14 23:22   ` LPT Vladimir 'φ-coder/phcoder' Serbinenko
2011-02-10 18:57     ` Kirill Kuprijanov [this message]
2011-02-10 21:47       ` LPT Vladimir 'φ-coder/phcoder' Serbinenko

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