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To: abial@korin.warman.org.pl
Cc: hackers@freebsd.org
Subject: Re: atapi.c || wierd hardware
Message-ID: <19971217.151114.5295.0.wakkym@juno.com>
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From: wakkym@juno.com (Lee Cremeans)
Date: Wed, 17 Dec 1997 15:13:18 EST
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On Wed, 17 Dec 1997 11:32:18 +0100 (CET) Andrzej Bialecki
<abial@korin.warman.org.pl> writes:
>On Tue, 16 Dec 1997, Lee Cremeans wrote:
>
>> 
>> On Tue, 16 Dec 1997 19:44:08 -0500 (EST) "Gregory D. Moncreaff"
>> <moncrg@bt340707.res.ray.com> writes:
>> >
>> >I've got a couple of IDE cdroms that, on boot/probe, 
>> >put a line as follows in the log:
>> >
>> >wdc1: unit 0 (atapi): <NEC                 CD-ROM DRIVE:282/3.05>, 
>> >removable, dma, iordy
>> >
>> >(lots of whitespace between 'NEC' and 'CD')
>
>And how about this:
>
>wdc1: unit 0 (atapi): <TOSHIBA CD-ROM XM-5602B/1656>, removable, intr, 
>dma, iordy
>wcd0: 1377Kb/sec, 256Kb cache, audio play, 255 volume levels, 
>ejectable tray
>wcd0: no disc inside, unlocked
>wdc1: unit 1 (atapi): 
><\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?/\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?>,

>removable, cmd3, drq3, ovlap, idma, 
>iordis
>wdc1: unit 1: unknown ATAPI protocol=3
>
>But it works ok... I simply got used to this.

Aie, I get this too...this is on a Mitsumi FX001DE connected to a Triton
FX DMA IDE controller. I noticed it started happening here when I bumped
my local-bus speed to 66 MHz (from 50MHz). It may well be a bug in the
Oak OTI-011 ATAPI-interface chip inside my drive...you may want to tear
yours down (assuming it's not under warranty :) and look for an OTI-011.

>Now, inside my home machine I have a Pioneer ATAPI unit, which is 
>reported
>by kernel as <iPnoee r .....> - little/big endian confusion on part of
>manufacturer :-)

I've seen this on at least one old IDE hard drive (the WDC 93044 and its
siblings)...ATA model strings are ALWAYS supposed to be big-endian, as
far as I can tell. 

>I conclude from this that vendors often have peculiar understanding of
>"standards"...

Yep... :/