mirror of
https://github.com/torvalds/linux.git
synced 2024-11-12 15:11:50 +00:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
282 lines
12 KiB
Scala
282 lines
12 KiB
Scala
Welcome to Beta Release 2 of the combination ISDN driver for SpellCaster's
|
|
ISA ISDN adapters. Please note this release 2 includes support for the
|
|
DataCommute/BRI and TeleCommute/BRI adapters only and any other use is
|
|
guaranteed to fail. If you have a DataCommute/PRI installed in the test
|
|
computer, we recommend removing it as it will be detected but will not
|
|
be usable. To see what we have done to Beta Release 2, see section 3.
|
|
|
|
Speaking of guarantees, THIS IS BETA SOFTWARE and as such contains
|
|
bugs and defects either known or unknown. Use this software at your own
|
|
risk. There is NO SUPPORT for this software. Some help may be available
|
|
through the web site or the mailing list but such support is totally at
|
|
our own option and without warranty. If you choose to assume all and
|
|
total risk by using this driver, we encourage you to join the beta
|
|
mailing list.
|
|
|
|
To join the Linux beta mailing list, send a message to:
|
|
majordomo@spellcast.com with the words "subscribe linux-beta" as the only
|
|
contents of the message. Do not include a signature. If you choose to
|
|
remove yourself from this list at a later date, send another message to
|
|
the same address with the words "unsubscribe linux-beta" as its only
|
|
contents.
|
|
|
|
TABLE OF CONTENTS
|
|
-----------------
|
|
1. Introduction
|
|
1.1 What is ISDN4Linux?
|
|
1.2 What is different between this driver and previous drivers?
|
|
1.3 How do I setup my system with the correct software to use
|
|
this driver release?
|
|
|
|
2. Basic Operations
|
|
2.1 Unpacking and installing the driver
|
|
2.2 Read the man pages!!!
|
|
2.3 Installing the driver
|
|
2.4 Removing the driver
|
|
2.5 What to do if it doesn't load
|
|
2.6 How to setup ISDN4Linux with the driver
|
|
|
|
3. Beta Change Summaries and Miscellaneous Notes
|
|
|
|
1. Introduction
|
|
---------------
|
|
|
|
The revision 2 Linux driver for SpellCaster ISA ISDN adapters is built
|
|
upon ISDN4Linux available separately or as included in Linux 2.0 and later.
|
|
The driver will support a maximum of 4 adapters in any one system of any
|
|
type including DataCommute/BRI, DataCommute/PRI and TeleCommute/BRI for a
|
|
maximum of 92 channels for host. The driver is supplied as a module in
|
|
source form and needs to be complied before it can be used. It has been
|
|
tested on Linux 2.0.20.
|
|
|
|
1.1 What Is ISDN4Linux
|
|
|
|
ISDN4Linux is a driver and set of tools used to access and use ISDN devices
|
|
on a Linux platform in a common and standard way. It supports HDLC and PPP
|
|
protocols and offers channel bundling and MLPPP support. To use ISDN4Linux
|
|
you need to configure your kernel for ISDN support and get the ISDN4Linux
|
|
tool kit from our web site.
|
|
|
|
ISDN4Linux creates a channel pool from all of the available ISDN channels
|
|
and therefore can function across adapters. When an ISDN4Linux compliant
|
|
driver (such as ours) is loaded, all of the channels go into a pool and
|
|
are used on a first-come first-served basis. In addition, individual
|
|
channels can be specifically bound to particular interfaces.
|
|
|
|
1.2 What is different between this driver and previous drivers?
|
|
|
|
The revision 2 driver besides adopting the ISDN4Linux architecture has many
|
|
subtle and not so subtle functional differences from previous releases. These
|
|
include:
|
|
- More efficient shared memory management combined with a simpler
|
|
configuration. All adapters now use only 16Kbytes of shared RAM
|
|
versus between 16K and 64K. New methods for using the shared RAM
|
|
allow us to utilize all of the available RAM on the adapter through
|
|
only one 16K page.
|
|
- Better detection of available upper memory. The probing routines
|
|
have been improved to better detect available shared RAM pages and
|
|
used pages are now locked.
|
|
- Decreased loading time and a wider range of I/O ports probed.
|
|
We have significantly reduced the amount of time it takes to load
|
|
the driver and at the same time doubled the number of I/O ports
|
|
probed increasing the likelihood of finding an adapter.
|
|
- We now support all ISA adapter models with a single driver instead
|
|
of separate drivers for each model. The revision 2 driver supports
|
|
the DataCommute/BRI, DataCommute/PRI and TeleCommute/BRI in any
|
|
combination up to a maximum of four adapters per system.
|
|
- On board PPP protocol support has been removed in favour of the
|
|
sync-PPP support used in ISDN4Linux. This means more control of
|
|
the protocol parameters, faster negotiation time and a more
|
|
familiar interface.
|
|
|
|
1.3 How do I setup my system with the correct software to use
|
|
this driver release?
|
|
|
|
Before you can compile, install and use the SpellCaster ISA ISDN driver, you
|
|
must ensure that the following software is installed, configured and running:
|
|
|
|
- Linux kernel 2.0.20 or later with the required init and ps
|
|
versions. Please see your distribution vendor for the correct
|
|
utility packages. The latest kernel is available from
|
|
ftp://sunsite.unc.edu/pub/Linux/kernel/v2.0/
|
|
|
|
- The latest modules package (modules-2.0.0.tar.gz) from
|
|
ftp://sunsite.unc.edu/pub/Linux/kernel/modules-2.0.0.tar.gz
|
|
|
|
- The ISDN4Linux tools available from
|
|
ftp://ftp.franken.de/pub/isdn4linux/v2.0/isdn4k-utils-2.0.tar.gz
|
|
This package may fail to compile for you so you can alternatively
|
|
get a pre-compiled version from
|
|
ftp://ftp.spellcast.com/pub/drivers/isdn4linux/isdn4k-bin-2.0.tar.gz
|
|
|
|
|
|
2. Basic Operations
|
|
-------------------
|
|
|
|
2.1 Unpacking and installing the driver
|
|
|
|
1. As root, create a directory in a convenient place. We suggest
|
|
/usr/src/spellcaster.
|
|
|
|
2. Unpack the archive with :
|
|
tar xzf sc-n.nn.tar.gz -C /usr/src/spellcaster
|
|
|
|
3. Change directory to /usr/src/spellcaster
|
|
|
|
4. Read the README and RELNOTES files.
|
|
|
|
5. Run 'make' and if all goes well, run 'make install'.
|
|
|
|
2.2 Read the man pages!!!
|
|
|
|
Make sure you read the scctrl(8) and sc(4) manual pages before continuing
|
|
any further. Type 'man 8 scctrl' and 'man 4 sc'.
|
|
|
|
2.3 Installing the driver
|
|
|
|
To install the driver, type '/sbin/insmod sc' as root. sc(4) details options
|
|
you can specify but you shouldn't need to use any unless this doesn't work.
|
|
|
|
Make sure the driver loaded and detected all of the adapters by typing
|
|
'dmesg'.
|
|
|
|
The driver can be configured so that it is loaded upon startup. To do this,
|
|
edit the file "/etc/modules/'uname -f'/'uname -v'" and insert the driver name
|
|
"sc" into this file.
|
|
|
|
2.4 Removing the driver
|
|
|
|
To remove the driver, delete any interfaces that may exist (see isdnctrl(8)
|
|
for more on this) and then type '/sbin/rmmod sc'.
|
|
|
|
2.5 What to do if it doesn't load
|
|
|
|
If, when you try to install the driver, you get a message mentioning
|
|
'register_isdn' then you do not have the ISDN4Linux system installed. Please
|
|
make sure that ISDN support is configured in the kernel.
|
|
|
|
If you get a message that says 'initialization of sc failed', then the
|
|
driver failed to detect an adapter or failed to find resources needed such
|
|
as a free IRQ line or shared memory segment. If you are sure there are free
|
|
resources available, use the insmod options detailed in sc(4) to override
|
|
the probing function.
|
|
|
|
Upon testing, the following problem was noted, the driver would load without
|
|
problems, but the board would not respond beyond that point. When a check was
|
|
done with 'cat /proc/interrupts' the interrupt count for sc was 0. In the event
|
|
of this problem, change the BIOS settings so that the interrupts in question are
|
|
reserved for ISA use only.
|
|
|
|
|
|
2.6 How to setup ISDN4Linux with the driver
|
|
|
|
There are three main configurations which you can use with the driver:
|
|
|
|
A) Basic HDLC connection
|
|
B) PPP connection
|
|
C) MLPPP connection
|
|
|
|
It should be mentioned here that you may also use a tty connection if you
|
|
desire. The Documentation directory of the isdn4linux subsystem offers good
|
|
documentation on this feature.
|
|
|
|
A) 10 steps to the establishment of a basic HDLC connection
|
|
-----------------------------------------------------------
|
|
|
|
- please open the isdn-hdlc file in the examples directory and follow along...
|
|
|
|
This file is a script used to configure a BRI ISDN TA to establish a
|
|
basic HDLC connection between its two channels. Two network
|
|
interfaces are created and two routes added between the channels.
|
|
|
|
i) using the isdnctrl utility, add an interface with "addif" and
|
|
name it "isdn0"
|
|
ii) add the outgoing and inbound telephone numbers
|
|
iii) set the Layer 2 protocol to hdlc
|
|
iv) set the eaz of the interface to be the phone number of that
|
|
specific channel
|
|
v) to turn the callback features off, set the callback to "off" and
|
|
the callback delay (cbdelay) to 0.
|
|
vi) the hangup timeout can be set to a specified number of seconds
|
|
vii) the hangup upon incoming call can be set on or off
|
|
viii) use the ifconfig command to bring up the network interface with
|
|
a specific IP address and point to point address
|
|
ix) add a route to the IP address through the isdn0 interface
|
|
x) a ping should result in the establishment of the connection
|
|
|
|
|
|
B) Establishment of a PPP connection
|
|
------------------------------------
|
|
|
|
- please open the isdn-ppp file in the examples directory and follow along...
|
|
|
|
This file is a script used to configure a BRI ISDN TA to establish a
|
|
PPP connection between the two channels. The file is almost
|
|
identical to the HDLC connection example except that the packet
|
|
encapsulation type has to be set.
|
|
|
|
use the same procedure as in the HDLC connection from steps i) to
|
|
iii) then, after the Layer 2 protocol is set, set the encapsulation
|
|
"encap" to syncppp. With this done, the rest of the steps, iv) to x)
|
|
can be followed from above.
|
|
|
|
Then, the ipppd (ippp daemon) must be setup:
|
|
|
|
xi) use the ipppd function found in /sbin/ipppd to set the following:
|
|
xii) take out (minus) VJ compression and bsd compression
|
|
xiii) set the mru size to 2000
|
|
xiv) link the two /dev interfaces to the daemon
|
|
|
|
NOTE: A "*" in the inbound telephone number specifies that a call can be
|
|
accepted on any number.
|
|
|
|
C) Establishment of a MLPPP connection
|
|
--------------------------------------
|
|
|
|
- please open the isdn-mppp file in the examples directory and follow along...
|
|
|
|
This file is a script used to configure a BRI ISDN TA to accept a
|
|
Multi Link PPP connection.
|
|
|
|
i) using the isdnctrl utility, add an interface with "addif" and
|
|
name it "ippp0"
|
|
ii) add the inbound telephone number
|
|
iii) set the Layer 2 protocol to hdlc and the Layer 3 protocol to
|
|
trans (transparent)
|
|
iv) set the packet encapsulation to syncppp
|
|
v) set the eaz of the interface to be the phone number of that
|
|
specific channel
|
|
vi) to turn the callback features off, set the callback to "off" and
|
|
the callback delay (cbdelay) to 0.
|
|
vi) the hangup timeout can be set to a specified number of seconds
|
|
vii) the hangup upon incoming call can be set on or off
|
|
viii) add a slave interface and name it "ippp32" for example
|
|
ix) set the similar parameters for the ippp32 interface
|
|
x) use the ifconfig command to bring-up the ippp0 interface with a
|
|
specific IP address and point to point address
|
|
xi) add a route to the IP address through the ippp0 interface
|
|
xii) use the ipppd function found in /sbin/ipppd to set the following:
|
|
xiii) take out (minus) bsd compression
|
|
xiv) set the mru size to 2000
|
|
xv) add (+) the multi-link function "+mp"
|
|
xvi) link the two /dev interfaces to the daemon
|
|
|
|
NOTE: To use the MLPPP connection to dial OUT to a MLPPP connection, change
|
|
the inbound telephone numbers to the outgoing telephone numbers of the MLPPP
|
|
host.
|
|
|
|
|
|
3. Beta Change Summaries and Miscellaneous Notes
|
|
------------------------------------------------
|
|
When using the "scctrl" utility to upload firmware revisions on the board,
|
|
please note that the byte count displayed at the end of the operation may be
|
|
different from the total number of bytes in the "dcbfwn.nn.sr" file. Please
|
|
disregard the displayed byte count.
|
|
|
|
It was noted that in Beta Release 1, the module would fail to load and result
|
|
in a segmentation fault when 'insmod'ed. This problem was created when one of
|
|
the isdn4linux parameters, (isdn_ctrl, data field) was filled in. In some
|
|
cases, this data field was NULL, and was left unchecked, so when it was
|
|
referenced... segv. The bug has been fixed around line 63-68 of event.c.
|
|
|