	ISA PnP utilities Version 1.26
	==============================

These programs allow ISA Plug-And-Play devices to be configured
on a Linux machine.

This program is suitable for all systems, whether or not they
include a PnP BIOS. In fact, a PnP BIOS adds some complications
because it may already activate some cards so that the drivers
can find them, and these tools can unconfigure them, or change
their settings causing all sorts of nasty effects. If you have
(for example) plug and play network cards that already work, I
suggest you read the manual page isapnp.conf(5) on the format
of the configuration file very carefully.

See the example for a dataflex voice fax modem and NE2000 clone
PnP card in README.modules. See the section below on Drivers and
MODULES for more background information. For even more hints etc
see the FAQ at:

 http://www.roestock.demon.co.uk/isapnptools/isapnpfaq.html

The commands have been taken from the Plug and Play ISA specification
Version 1.0a, widely available on the net.
(ftp://ftp.microsoft.com/developr/drg/Plug-and-Play/Pnpspecs/PNPISA.EXE
- this is a self-extracting DOS archive of PNPISA.DOC - a word 6
document. If Word 6, or any other word processor capable of handling
Word 6 files, is not available, use the freely redistributable viewer
wordview which comes on the Win95 CD).

See NEWS for a list of changes from the previous version.

See doc/README.OS2 for description of OS2 stuff.

Installation intructions
========================
This package now uses autoconf and automake. Generic installation
instructions are in the file INSTALL.

*READ* the documentation in the doc directory.

Summary:

To get a list of configurable things type

./configure --help

Typically you will do

./configure --prefix=/usr --exec-prefix=
make CFLAGS="-O2 -Wall"
make install

Edit the GONEFILE (/etc/isapnp.gone by default). There is an example
in the etc directory.

Edit the configuration file (usually /etc/isapnp.conf). You can
generate an initial one using

pnpdump -c > /etc/isapnp.conf

Edit the computer bootup scripts to run isapnp on boot, and to install
whatever kernel driver modules you require. See the documentation in
doc for more details.

If isapnp reports an error *READ* the isapnp man page as it explains
each error in some detail.

Documentation
=============
See the doc directory. It includes the manual pages, and a text
version of the latest FAQ when the release was made.

Format of pnp configuration file:
=================================
See the manual page isapnp.conf.5.

If you have a problem:
======================
Please start by looking at ALL the documentation provided, including
the FAQ, then look at the isapnptools website at
http://www.roestock.demon.co.uk/isapnptools/ for the very latest
information.

If you find a bug, please report it, ideally with a patch to fix it,
see 'Contacting the Author' at the end.

Drivers and MODULES
===================
Note that boards first configured by isapnp are not visible to the
kernel during boot up. This means that drivers for the boards must be
loaded as modules after the board has been configured, so that they
can locate the board. See doc/README.modules for an example.

This doesn't apply to serial cards, because setserial can be used to
configure the serial ports after the kernel has booted.

Also, IDE devices can be initialised after the kernel boots by
configuring IDE-PCMCIA in the kernel. Then writing a module to
initialise the device after running isapnp.
See README.ide and /usr/src/linux/Documentation/Configure.help.

An alternative method is to use initrd to run isapnp before booting
the main kernel. See doc/README.initrd and
/usr/src/linux/Documentation/initrd.txt.  This may be particularly
applicable for IDE devices attached to PnP cards.  I hope to
experiment with initrd sometime for my network card...  if you've
already done it please tell me how.

If you boot Linux from DOS using loadlin, you can also run the DOS
version of isapnp before booting Linux. This would allow you to use
normal compiled in drivers.

If the kernel needs rebooting after configuration, because the drivers
are not modules, it may be possible to do this automatically in your
bootup scripts: use an isapnp.conf file which dumps the board
configuration registers and tests the the output.
If the board(s) haven't been configured, configure them with the
configuration isapnp.conf file and reboot.
If the boards have been configured, continue the boot normally.
You may want to take precautions to prevent the kernel continuously
rebooting if something goes wrong...

isapnp for debugging.
=====================
This example shows how the PEEK command may now be used with the standard
configuration settings to dump the actual board configuration register
settings, for example, the script:

#(DEBUG)
(READPORT 0x3bb)
#(READPORT 0x203)
(ISOLATE PRESERVE)
(IDENTIFY *)
(CONFIGURE DFX0000/1493
        (LD 0
                (IO 0 (PEEK)) # Dump Port 0
                (IO 1 (PEEK)) # Dump Port 1
                (IO 2 (PEEK)) # Dump Port 2
                (INT 0 (PEEK)) # Dump INT 0
                (DMA 0 (PEEK)) # Dump DMA 0
                (DMA 1 (PEEK)) # Dump DMA 1
                (MEM 0 (PEEK)) # Dump MEM 0
                (REG 0x60 (PEEK)) (REG 0x61 (PEEK)) # Dump Port 0
                (REG 0x62 (PEEK)) (REG 0x63 (PEEK)) # Dump Port 1
                (REG 0x64 (PEEK)) (REG 0x65 (PEEK)) # Dump Port 2
                (REG 0x70 (PEEK)) (REG 0x71 (PEEK)) # Dump INT 0
                (REG 0x74 (PEEK)) # Dump DMA 0
                (REG 0x75 (PEEK)) # Dump DMA 1
))
(WAITFORKEY)

produces the following with my dataflex modem:

Board 1 has Identity 6e 00 00 05 d5 00 00 d8 10:  DFX0000 Serial No 1493 [checksum 6e]
Peek(DFX0000/1493)[0][0x60](IO  0) is 0x03E8, (3,232)
Peek(DFX0000/1493)[0][0x62](IO  1) is 0x0000, (0,0)
Peek(DFX0000/1493)[0][0x64](IO  2) is 0x0000, (0,0)
Peek(DFX0000/1493)[0][0x70](INT 0) is 0x0C02, (12,2)
Peek(DFX0000/1493)[0][0x74](DMA 0) is 0x04, (4)
Peek(DFX0000/1493)[0][0x74](DMA 0) is 0x04, (4)
Peek(DFX0000/1493)[0][0x40](MEM 0) is 0x0000000000000000, (0,0,0,0,0,0,0,0)
Peek(DFX0000/1493)[0][0x60](-REG-) is 0x03, (3)
Peek(DFX0000/1493)[0][0x61](-REG-) is 0xE8, (232)
Peek(DFX0000/1493)[0][0x62](-REG-) is 0x00, (0)
Peek(DFX0000/1493)[0][0x63](-REG-) is 0x00, (0)
Peek(DFX0000/1493)[0][0x64](-REG-) is 0x00, (0)
Peek(DFX0000/1493)[0][0x65](-REG-) is 0x00, (0)
Peek(DFX0000/1493)[0][0x70](-REG-) is 0x0C, (12)
Peek(DFX0000/1493)[0][0x71](-REG-) is 0x02, (2)
Peek(DFX0000/1493)[0][0x74](-REG-) is 0x04, (4)
Peek(DFX0000/1493)[0][0x75](-REG-) is 0x04, (4)

The isapnp library
==================
See doc/README.lib, which describes the library created by the changes
from isapnptools-1.19 to isapnptools-1.20. If you have problems
with the library being released under the GPL, contact me in the
first instance to discuss (it is unlikely to change though due
to contributions from other parties).

Cross-compiling
===============
If you want to build a dos binary, and you have built a cross-compiler
for dos, you can build it in a similar way to how I do:

CC="gcc -b i386-go32-msdos" configure --disable-realtime --disable-proc --disable-pci
make GNUTARGET=coff-i386

To make a.out binaries for a machine without PCI:
CC="gcc -b i486-linuxaout" configure --disable-pci --prefix=/
make

Cross-compiling for other architectures is similar. See the gcc and
binutils documentation for details.

Bugs
====
I haven't tested the Memory setting stuff, as I haven't
got a card with suitable drivers. If it doesn't work, tell me,
and work around using poke, which I have tested.

Newer PCs don't always work, I now think this is due to faulty
hardware, see the FAQ for details.

The DOS binary should be extended to allow access to PCI configuration
information through BIOS calls (rather than /proc/pci).

Note
====
These programs must run as root, as they need unrestricted access
to the computer IO addresses. This could cause lots of problems,
so use with care. DO NOT MAKE THESE PROGRAMS SUID root !

This is particularly important now that pnpdump (with certain options)
uses popen() to invoke external programs.

Copyright
=========
These programs are copyright P.J.H.Fox (fox@roestock.demon.co.uk)
and distributed under the GPL (see COPYING).

Warranty
========
There is NO WARRANTY for these programs.

These programs have been compiled on my machine using gcc 2.7.2.3,
flex 2.5.4 and linux 2.0.37, with libc-5.4.44 and they seem to work
for me.

However, due to the nature of these programs, they are very likely
to completely screw up your computer: USE AT YOUR OWN RISK. But if
you find them useful, or have some suggestions for improvement,
please tell me, see 'Contacting the Author' below.

Y2K
===
Here's my Y2K statement, for what it's worth:

Programs in the isapnptools suite don't use dates, so there shouldn't
be any problems; the only time functions used are for implementing
delays and alarms. However, it depends whether the C library you link
against has hidden date dependencies I guess.  I should remind you
that isapnptools comes with NO WARRANTY.

Mailing List
============
If you would like to receive announcements of new releases directly,
(releases are normally announced to comp.os.linux.announce anyway),
then send an email to isapnp-announce@roestock.demon.co.uk, with the
subject "subscribe isapnp-announce", giving the details of your email
address. By default, contributors of patches and other improvements
will get added automatically (if I remember !).

Contacting the Author
=====================
If mailing patches, bug reports or comments, please put 'isapnp'
somewhere in the subject line, and mail to
isapnp@roestock.demon.co.uk. See the website (in See also below) for
lists of information required if you are expecting help. Due to the
level of spam coming into this address, I reserve the right to bounce,
or simply ignore, submissions that don't comply.

See also
========
Latest information of isapnptools is available at the time of writing
on my website: http://www.roestock.demon.co.uk/isapnptools/. This
includes an FAQ, and the htmlised manual pages, so please refer to this
first in the event of any difficulties.

Peter Fox
30-Apr-2001
