[5519] in linux-scsi channel archive
UDS-IS11 aka DTC-3181x
daemon@ATHENA.MIT.EDU (Vasile Gaburici)
Fri Jan 1 12:22:17 1999
Date: Fri, 1 Jan 1999 18:28:56 +0200 (EET)
From: Vasile Gaburici <gaburici@fx.ro>
To: linux-scsi@vger.rutgers.edu
It seems that posting to linux-scsi this reques would be a better ideea...
On Fri, 1 Jan 1999, Vasile Gaburici wrote:
>
> Date: Fri, 1 Jan 1999 17:35:07 +0200 (EET)
> From: Vasile Gaburici <gaburici@fx.ro>
> To: linux-kernel@vger.rutgers.edu
> Subject: UDS-IS11 aka DTC-3181x
>
>
> This message is partly an answer to some questions I've seen on
> this list in the previous months and (most important) it asks some stuff
> I'd like to know.
>
> Things I've already discovered:
>
> The (UMAX) UDS-IS11 card is a super-cheap SCSI-II ISA card made in
> Taiwan that usually ships with SCSI scanners made in that part of the
> globe. I have a KYE (Genius) HR-5 (Astra 1200S clone) that came with
> such a card.
>
> The card is based on the DTC-3181x chip. On the chip itself you
> will find written DTC436E (or P). There are plenty of card revisions out
> there, a good source for identifying them is at:
> http://www.imcnet.com/support/doc/f096B.htm
>
> A couple of months ago Alan said something about the brains of
> UMAX and I tend to agree. However not all hope is lost. Some card
> revisions feature a magic jumper J1. By default this thing is on (and if
> you're unlucky its soldered) and it makes the card work in Plug and Run
> mode (that is brain-dead). What it means is that the card has no IRQ, only
> a port range. When the PC is booted the 3181 will scan for a free port
> range starting from 0x300 and will configure itself for that. This really
> works, as I have a NIC at 0x300 and the 3181 stucks to 0x280.
>
> The nice part comes if you can remove J1, you get a PNP card! And
> it does feature an IRQ. Whether it works or not I cannot say right now.
> The output from pnpdump follows:
>
> (CONFIGURE DTC436e/-1 (LD 0
> # Logical device decodes 10 bit IO address lines
> # Minimum IO base address 0x0240
> # Maximum IO base address 0x03e0
> # IO base alignment 32 bytes
> # Number of IO addresses required: 32
> # (IO 0 (SIZE 32) (BASE 0x0240))
> # IRQ 3, 4, 5, 11 or 15.
> # High true, edge sensitive interrupt
> # (INT 0 (IRQ 3 (MODE +E)))
> (NAME "DTC436e/-1[0]{DTC436E }")
> # (ACT Y)
> ))
> # End tag... Checksum 0x00 (OK)
>
> Most scanner manufacturers don't seem eager to tell their
> customers that in fact they have a fully functional ISA PNP card! For DOS
> and windoze9x/NT there is a full ASPI driver at:
> http://www.domex.com.tw/service_/index_01.htm#scsi_driver_download
>
> I've managed to activate the card with isapnp, but none of the
> drivers I've tried with a 2.0.36 kernel worked. The one for DTC 8x30
> failed to detect the board (as it looked for completely different
> parameters) and the g_NCR5380 hanged despite my attempt to launch it as a
> NCR53c400. The 3181LE I've got claims to be NCR 400a compatible.
>
> My card has a P/N: 970160-16 and a DTC-3181LE chip. This matches
> the inscription on the back of the PCB which may be found near the
> external connector, in fact the only one on this revision.
>
> The DOS driver says something like this on startup:
> DTC-3X8X/3X5X SCSI ASPI Manager for DOS, Version 3.9T.05 08/22/96
> Also the windoze drivers are for an 328x. So, I assume that there
> is not much difference between the chips. It looks like an initialization
> problem.
>
> Domex (former DTC) seems Linux friendly; in fact they have Linux
> drivers for the high-end DMX3194, but tough luck with 3181x.
>
> So, my hope is that one of you SCSI guru guys will get the info
> from Domex and tweak the driver. If you think it's not worth the effort
> please try to get some info and pass it to me. I'm new to Linux drivers,
> but I might be able to capitalize on the existing DTC stuff.
>
> Best wishes and Happy New Year (almost forgot!),
> Vasile
>
Please mail me directly; I got 10 messages in 10 minutes on linux-kernel.
> =================================================
> Vasile Gaburici
> Phone/Fax: +(40 1) 222 86 77
> E-mail: gaburici@fx.ro
> gaburici@kermit.cs.pub.ro
> =================================================
>
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