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Date:      Sun, 26 Sep 1999 12:06:55 -0700
From:      Mike Smith <mike@smith.net.au>
To:        Mitsuru IWASAKI <iwasaki@jp.FreeBSD.org>
Cc:        current@freebsd.org
Subject:   Re: Experimental ACPI driver. 
Message-ID:  <199909261906.MAA13438@dingo.cdrom.com>
In-Reply-To: Your message of "Sat, 25 Sep 1999 04:20:03 %2B0900." <199909241917.EAA06519@tasogare.imasy.or.jp> 

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> Hi, there.
> 
> > We wrote experimental ACPI driver for 4.0-CURRENT.
> 
> This was just one week work so its functionallity is very very poor :-)
> but I think it is good idea to start with this for developping ACPI
> driver for FreeBSD because it is enough small to understand it.

I'm not sure this is the right way to go about it, although I haven't 
looked at your code yet.  APCI is a big animal, and I think it's going 
to take a proper design to get it right.

The key components would appear to be a full AML parser, an object 
manager to manage the ACPI namespace, and an AML interpreter to run the 
AML methods.

> If someone already started wriring ACPI devive driver, please let us
> know.  We'd like to merge them and would be happy in collaboration
> with you.

Both Doug Rabson and myself have been tinkering with this, and there's 
someone that's been looking at an AML parser/interpreter in the last 
couple of weeks.  At this point in time, the parser and object manager 
are the most vital components.

-- 
\\  The mind's the standard       \\  Mike Smith
\\  of the man.                   \\  msmith@freebsd.org
\\    -- Joseph Merrick           \\  msmith@cdrom.com




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