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- From: Claus Brod <clausb@hpbeo79.bbn.hp.com>
- Subject: Re: Just a couple of things.
- Date: Wed, 27 Apr 94 10:25:48 MESZ
- In-Reply-To: <5969.9404270732@tiggertoo.earth.ox.ac.uk>; from "Stephen Usher" at Apr 27, 94 8:32 am
- Mailer: Elm [revision: 70.85]
-
- > Filesystems would layer above this model. As the Falcon SCSI and TT SCSI are
- > mutually exclusive they could use the same virtual device numbers. Devices
- > would be numbered in the same way as Atari does, ie. ACSI are 0-7 and SCSI
- > are 8-15.
- >
- > To do this I'll need to get information on the following:-
- >
- > (a) SCSI commands
- > (b) TT SCSI chip programming
- > (c) Falcon SCSI hardware addresses and programming
-
- You're reinventing the wheel here. It would be much more efficient
- in terms of developping time if we could agree on an XHDI extension
- which allows to send ACSI/SCSI commands to the hard disk driver.
- This way, you would only have to write the device driver interface
- code and wouldn't have to care about low-level stuff.
-
- The only problem here is that you need a hard disk driver that offers
- such a service. Atari will certainly not update their hard disk driver
- in that direction, and I don't think that ICD offers a full XHDI
- interface. Therefore I have the following suggestion:
-
- A few years ago, I wrote a hard disk driver of my own, called CBHD.
- It has been published as part of a book that I wrote ("Scheibenkleister"),
- together with other hard disk maintenance software. At the time,
- the book and the driver were very successful in Germany.
-
- In the meantime, the book is out of print, and I don't have the
- time to offer a full-blown support for the hard disk driver.
- I know, however, that it is quite good; it's fast (I believe
- it is the fastest of them all 8-), reliable (thousands of users
- have tested it with quite a lot of configurations), and in the
- meantime it has also become a little more modular so that it can
- be extended more easily. I don't want this piece of software just
- lie around on my hard disk. If there's enough interest, I would be willing
- to give this hard disk driver into the public domain, under similar
- terms as other MiNT-related software and MiNT itself so that other
- people could hack it up and extend it. I have prepared the driver
- for XHDI support, but only two or three XHDI functions are implemented
- right now. It's not that tricky to add the other ones, though.
- I just don't have the time for it. I would be willing, though,
- to coordinate releases, i.e. collect, check and send out patches,
- at least in the beginning until I have found out whether this
- is manageable or not.
-
- So if you think a PD hard disk driver would be a good idea, please
- say so. I need some support for it, and I won't release CBHD into
- the public domain if I don't know that there will be some people
- who will actually add value to it and use it.
-
- Let me know what you think!
-
- --clausb@hpbeo79.bbn.hp.com-----------------------------------------------
- Claus Brod, MDD, HP Boeblingen Have you hugged your manager today?
- --#include <std_disclaimer>-----------------------------------------------
-