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Date:      Fri, 10 May 2002 20:29:49 -0400 (EDT)
From:      John Baldwin <jhb@FreeBSD.org>
To:        Brian Somers <brian@Awfulhak.org>
Cc:        cvs-all@FreeBSD.org, cvs-committers@FreeBSD.org, Joerg Wunsch <joerg@FreeBSD.org>
Subject:   Re: cvs commit: src/sys/isa fd.c fdreg.h
Message-ID:  <XFMail.20020510202949.jhb@FreeBSD.org>
In-Reply-To: <200205110015.g4B0F8nA006576@hak.lan.Awfulhak.org>

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On 11-May-2002 Brian Somers wrote:
>> joerg       2002/05/10 10:56:39 PDT
>> 
>>   Modified files:
>>     sys/isa              fd.c fdreg.h 
>>   Log:
>>   Change the PIO loops from a hard counter into a loop that calls DELAY()
>>   in each cycle, with a tunable max cycle count defined in fdreg.h.
>>   
>>   This is said to fix the problem on some Compaq hardware (and perhaps
>>   on other machines using the Natsemi PC87317 chip) where the fdc(4)
>>   driver failed to operate at all.
>>   
>>   PR:             kern/21397
>>   Submitted by:   Jung-uk Kim <jkim@niksun.com>
>>   MFC after:      3 days
>>   
>>   Revision  Changes    Path
>>   1.229     +14 -8     src/sys/isa/fd.c
>>   1.16      +12 -0     src/sys/isa/fdreg.h
> 
> As fdc is also a module, would it be better to call tsleep() instead 
> of delay if (!cold) ?  Like in sys/dev/digi/digi.c:digi_delay()...

Hmm, we should come up with the real fix for this quick so as to avoid
propagating that hack any farther than we have to. :-/  (Not picking on
you Brian).

-- 

John Baldwin <jhb@FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/

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