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Date:      Tue, 9 Jun 1998 12:01:10 +0100 (BST)
From:      Scott Mitchell <scott@dcs.qmw.ac.uk>
To:        Luigi Rizzo <luigi@labinfo.iet.unipi.it>
Cc:        multimedia@FreeBSD.ORG
Subject:   Re: audio from atapi cd -- patches for 2.2.6
Message-ID:  <199806091101.MAA04401@hotpoint.dcs.qmw.ac.uk>
In-Reply-To: <199806090842.KAA17652@labinfo.iet.unipi.it>
References:  <199806091014.LAA24933@hotpoint.dcs.qmw.ac.uk>	<199806090842.KAA17652@labinfo.iet.unipi.it>

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Luigi Rizzo said:
>> I had a play around to see if I could figure anything out -- but as I know
>> basically nothing about how ATAPI works I don't know how much I achieved :)
>> 
>> Anyway, with DEBUG turned on in atapi.c (plus a few extra printfs) I get
>> the following from dmesg for my two IDE controllers:
>> 
>> [...]
>> wdc0 at 0x1f0-0x1f7 irq 14 flags 0x80ff80ff on isa
>> wdc0: unit 0 (wd0): <ST3660A>, multi-block-16
>> wd0: 520MB (1065456 sectors), 1057 cyls, 16 heads, 63 S/T, 512 B/S
>> atapi0.1 at 0x1f0: attach called
>> wdc0: unit 1 (atapi): <CD420E/1.01>, removable, cmd12, slow, iordy
>
>i cannot parse the debugging stuff either, but at this point the
>code tries to read the capability page of the drive and apparently
>fails (or it would produce something more on the capability of the
>drive).

I agree.  It whines about "unknown phase" without your patches, but works
anyway.  I guess your code is exercising some weirdness of the drive.

Will post the patched and unpatched dmesg output ASAP.

>(btw. i'll be in london at ucl next monday!)

Cool.  Maybe we could get together -- any other FreeBSDers in town?

	Scott.

-- 
===========================================================================
Scott Mitchell          | PGP Key ID |"If I can't have my coffee, I'm just 
<scott@dcs.qmw.ac.uk>   | 0x54B171B9 | like a dried up piece of roast goat"
QMW College, London, UK | 0xAA775B8B |     -- J. S. Bach.

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