bf6ee0ae49
Now that devfs is removed, there's no longer any need to document how to do this or that with devfs. This patch includes some improvements by Joe Perches. Signed-off-by: Adrian Bunk <bunk@stusta.de>
522 lines
17 KiB
Text
522 lines
17 KiB
Text
NOTE: This is an unmaintained driver. It is not guaranteed to work due to
|
|
changes made in the tty layer in 2.6. If you wish to take over maintenance of
|
|
this driver, contact Michael Warfield <mhw@wittsend.com>.
|
|
|
|
Changelog:
|
|
----------
|
|
11-01-2001: Original Document
|
|
|
|
10-29-2004: Minor misspelling & format fix, update status of driver.
|
|
James Nelson <james4765@gmail.com>
|
|
|
|
Computone Intelliport II/Plus Multiport Serial Driver
|
|
-----------------------------------------------------
|
|
|
|
Release Notes For Linux Kernel 2.2 and higher.
|
|
These notes are for the drivers which have already been integrated into the
|
|
kernel and have been tested on Linux kernels 2.0, 2.2, 2.3, and 2.4.
|
|
|
|
Version: 1.2.14
|
|
Date: 11/01/2001
|
|
Historical Author: Andrew Manison <amanison@america.net>
|
|
Primary Author: Doug McNash
|
|
Support: support@computone.com
|
|
Fixes and Updates: Mike Warfield <mhw@wittsend.com>
|
|
|
|
This file assumes that you are using the Computone drivers which are
|
|
integrated into the kernel sources. For updating the drivers or installing
|
|
drivers into kernels which do not already have Computone drivers, please
|
|
refer to the instructions in the README.computone file in the driver patch.
|
|
|
|
|
|
1. INTRODUCTION
|
|
|
|
This driver supports the entire family of Intelliport II/Plus controllers
|
|
with the exception of the MicroChannel controllers. It does not support
|
|
products previous to the Intelliport II.
|
|
|
|
This driver was developed on the v2.0.x Linux tree and has been tested up
|
|
to v2.4.14; it will probably not work with earlier v1.X kernels,.
|
|
|
|
|
|
2. QUICK INSTALLATION
|
|
|
|
Hardware - If you have an ISA card, find a free interrupt and io port.
|
|
List those in use with `cat /proc/interrupts` and
|
|
`cat /proc/ioports`. Set the card dip switches to a free
|
|
address. You may need to configure your BIOS to reserve an
|
|
irq for an ISA card. PCI and EISA parameters are set
|
|
automagically. Insert card into computer with the power off
|
|
before or after drivers installation.
|
|
|
|
Note the hardware address from the Computone ISA cards installed into
|
|
the system. These are required for editing ip2.c or editing
|
|
/etc/modprobe.conf, or for specification on the modprobe
|
|
command line.
|
|
|
|
Note that the /etc/modules.conf should be used for older (pre-2.6)
|
|
kernels.
|
|
|
|
Software -
|
|
|
|
Module installation:
|
|
|
|
a) Determine free irq/address to use if any (configure BIOS if need be)
|
|
b) Run "make config" or "make menuconfig" or "make xconfig"
|
|
Select (m) module for CONFIG_COMPUTONE under character
|
|
devices. CONFIG_PCI and CONFIG_MODULES also may need to be set.
|
|
c) Set address on ISA cards then:
|
|
edit /usr/src/linux/drivers/char/ip2.c if needed
|
|
or
|
|
edit /etc/modprobe.conf if needed (module).
|
|
or both to match this setting.
|
|
d) Run "make modules"
|
|
e) Run "make modules_install"
|
|
f) Run "/sbin/depmod -a"
|
|
g) install driver using `modprobe ip2 <options>` (options listed below)
|
|
h) run ip2mkdev (either the script below or the binary version)
|
|
|
|
|
|
Kernel installation:
|
|
|
|
a) Determine free irq/address to use if any (configure BIOS if need be)
|
|
b) Run "make config" or "make menuconfig" or "make xconfig"
|
|
Select (y) kernel for CONFIG_COMPUTONE under character
|
|
devices. CONFIG_PCI may need to be set if you have PCI bus.
|
|
c) Set address on ISA cards then:
|
|
edit /usr/src/linux/drivers/char/ip2.c
|
|
(Optional - may be specified on kernel command line now)
|
|
d) Run "make zImage" or whatever target you prefer.
|
|
e) mv /usr/src/linux/arch/i386/boot/zImage to /boot.
|
|
f) Add new config for this kernel into /etc/lilo.conf, run "lilo"
|
|
or copy to a floppy disk and boot from that floppy disk.
|
|
g) Reboot using this kernel
|
|
h) run ip2mkdev (either the script below or the binary version)
|
|
|
|
Kernel command line options:
|
|
|
|
When compiling the driver into the kernel, io and irq may be
|
|
compiled into the driver by editing ip2.c and setting the values for
|
|
io and irq in the appropriate array. An alternative is to specify
|
|
a command line parameter to the kernel at boot up.
|
|
|
|
ip2=io0,irq0,io1,irq1,io2,irq2,io3,irq3
|
|
|
|
Note that this order is very different from the specifications for the
|
|
modload parameters which have separate IRQ and IO specifiers.
|
|
|
|
The io port also selects PCI (1) and EISA (2) boards.
|
|
|
|
io=0 No board
|
|
io=1 PCI board
|
|
io=2 EISA board
|
|
else ISA board io address
|
|
|
|
You only need to specify the boards which are present.
|
|
|
|
Examples:
|
|
|
|
2 PCI boards:
|
|
|
|
ip2=1,0,1,0
|
|
|
|
1 ISA board at 0x310 irq 5:
|
|
|
|
ip2=0x310,5
|
|
|
|
This can be added to and "append" option in lilo.conf similar to this:
|
|
|
|
append="ip2=1,0,1,0"
|
|
|
|
|
|
3. INSTALLATION
|
|
|
|
Previously, the driver sources were packaged with a set of patch files
|
|
to update the character drivers' makefile and configuration file, and other
|
|
kernel source files. A build script (ip2build) was included which applies
|
|
the patches if needed, and build any utilities needed.
|
|
What you receive may be a single patch file in conventional kernel
|
|
patch format build script. That form can also be applied by
|
|
running patch -p1 < ThePatchFile. Otherwise run ip2build.
|
|
|
|
The driver can be installed as a module (recommended) or built into the
|
|
kernel. This is selected as for other drivers through the `make config`
|
|
command from the root of the Linux source tree. If the driver is built
|
|
into the kernel you will need to edit the file ip2.c to match the boards
|
|
you are installing. See that file for instructions. If the driver is
|
|
installed as a module the configuration can also be specified on the
|
|
modprobe command line as follows:
|
|
|
|
modprobe ip2 irq=irq1,irq2,irq3,irq4 io=addr1,addr2,addr3,addr4
|
|
|
|
where irqnum is one of the valid Intelliport II interrupts (3,4,5,7,10,11,
|
|
12,15) and addr1-4 are the base addresses for up to four controllers. If
|
|
the irqs are not specified the driver uses the default in ip2.c (which
|
|
selects polled mode). If no base addresses are specified the defaults in
|
|
ip2.c are used. If you are autoloading the driver module with kerneld or
|
|
kmod the base addresses and interrupt number must also be set in ip2.c
|
|
and recompile or just insert and options line in /etc/modprobe.conf or both.
|
|
The options line is equivalent to the command line and takes precedence over
|
|
what is in ip2.c.
|
|
|
|
/etc/modprobe.conf sample:
|
|
options ip2 io=1,0x328 irq=1,10
|
|
alias char-major-71 ip2
|
|
alias char-major-72 ip2
|
|
alias char-major-73 ip2
|
|
|
|
The equivalent in ip2.c:
|
|
|
|
static int io[IP2_MAX_BOARDS]= { 1, 0x328, 0, 0 };
|
|
static int irq[IP2_MAX_BOARDS] = { 1, 10, -1, -1 };
|
|
|
|
The equivalent for the kernel command line (in lilo.conf):
|
|
|
|
append="ip2=1,1,0x328,10"
|
|
|
|
|
|
Note: Both io and irq should be updated to reflect YOUR system. An "io"
|
|
address of 1 or 2 indicates a PCI or EISA card in the board table.
|
|
The PCI or EISA irq will be assigned automatically.
|
|
|
|
Specifying an invalid or in-use irq will default the driver into
|
|
running in polled mode for that card. If all irq entries are 0 then
|
|
all cards will operate in polled mode.
|
|
|
|
If you select the driver as part of the kernel run :
|
|
|
|
make zlilo (or whatever you do to create a bootable kernel)
|
|
|
|
If you selected a module run :
|
|
|
|
make modules && make modules_install
|
|
|
|
The utility ip2mkdev (see 5 and 7 below) creates all the device nodes
|
|
required by the driver. For a device to be created it must be configured
|
|
in the driver and the board must be installed. Only devices corresponding
|
|
to real IntelliPort II ports are created. With multiple boards and expansion
|
|
boxes this will leave gaps in the sequence of device names. ip2mkdev uses
|
|
Linux tty naming conventions: ttyF0 - ttyF255 for normal devices, and
|
|
cuf0 - cuf255 for callout devices.
|
|
|
|
|
|
4. USING THE DRIVERS
|
|
|
|
As noted above, the driver implements the ports in accordance with Linux
|
|
conventions, and the devices should be interchangeable with the standard
|
|
serial devices. (This is a key point for problem reporting: please make
|
|
sure that what you are trying do works on the ttySx/cuax ports first; then
|
|
tell us what went wrong with the ip2 ports!)
|
|
|
|
Higher speeds can be obtained using the setserial utility which remaps
|
|
38,400 bps (extb) to 57,600 bps, 115,200 bps, or a custom speed.
|
|
Intelliport II installations using the PowerPort expansion module can
|
|
use the custom speed setting to select the highest speeds: 153,600 bps,
|
|
230,400 bps, 307,200 bps, 460,800bps and 921,600 bps. The base for
|
|
custom baud rate configuration is fixed at 921,600 for cards/expansion
|
|
modules with ST654's and 115200 for those with Cirrus CD1400's. This
|
|
corresponds to the maximum bit rates those chips are capable.
|
|
For example if the baud base is 921600 and the baud divisor is 18 then
|
|
the custom rate is 921600/18 = 51200 bps. See the setserial man page for
|
|
complete details. Of course if stty accepts the higher rates now you can
|
|
use that as well as the standard ioctls().
|
|
|
|
|
|
5. ip2mkdev and assorted utilities...
|
|
|
|
Several utilities, including the source for a binary ip2mkdev utility are
|
|
available under .../drivers/char/ip2. These can be build by changing to
|
|
that directory and typing "make" after the kernel has be built. If you do
|
|
not wish to compile the binary utilities, the shell script below can be
|
|
cut out and run as "ip2mkdev" to create the necessary device files. To
|
|
use the ip2mkdev script, you must have procfs enabled and the proc file
|
|
system mounted on /proc.
|
|
|
|
|
|
6. NOTES
|
|
|
|
This is a release version of the driver, but it is impossible to test it
|
|
in all configurations of Linux. If there is any anomalous behaviour that
|
|
does not match the standard serial port's behaviour please let us know.
|
|
|
|
|
|
7. ip2mkdev shell script
|
|
|
|
Previously, this script was simply attached here. It is now attached as a
|
|
shar archive to make it easier to extract the script from the documentation.
|
|
To create the ip2mkdev shell script change to a convenient directory (/tmp
|
|
works just fine) and run the following command:
|
|
|
|
unshar Documentation/computone.txt
|
|
(This file)
|
|
|
|
You should now have a file ip2mkdev in your current working directory with
|
|
permissions set to execute. Running that script with then create the
|
|
necessary devices for the Computone boards, interfaces, and ports which
|
|
are present on you system at the time it is run.
|
|
|
|
|
|
#!/bin/sh
|
|
# This is a shell archive (produced by GNU sharutils 4.2.1).
|
|
# To extract the files from this archive, save it to some FILE, remove
|
|
# everything before the `!/bin/sh' line above, then type `sh FILE'.
|
|
#
|
|
# Made on 2001-10-29 10:32 EST by <mhw@alcove.wittsend.com>.
|
|
# Source directory was `/home2/src/tmp'.
|
|
#
|
|
# Existing files will *not* be overwritten unless `-c' is specified.
|
|
#
|
|
# This shar contains:
|
|
# length mode name
|
|
# ------ ---------- ------------------------------------------
|
|
# 4251 -rwxr-xr-x ip2mkdev
|
|
#
|
|
save_IFS="${IFS}"
|
|
IFS="${IFS}:"
|
|
gettext_dir=FAILED
|
|
locale_dir=FAILED
|
|
first_param="$1"
|
|
for dir in $PATH
|
|
do
|
|
if test "$gettext_dir" = FAILED && test -f $dir/gettext \
|
|
&& ($dir/gettext --version >/dev/null 2>&1)
|
|
then
|
|
set `$dir/gettext --version 2>&1`
|
|
if test "$3" = GNU
|
|
then
|
|
gettext_dir=$dir
|
|
fi
|
|
fi
|
|
if test "$locale_dir" = FAILED && test -f $dir/shar \
|
|
&& ($dir/shar --print-text-domain-dir >/dev/null 2>&1)
|
|
then
|
|
locale_dir=`$dir/shar --print-text-domain-dir`
|
|
fi
|
|
done
|
|
IFS="$save_IFS"
|
|
if test "$locale_dir" = FAILED || test "$gettext_dir" = FAILED
|
|
then
|
|
echo=echo
|
|
else
|
|
TEXTDOMAINDIR=$locale_dir
|
|
export TEXTDOMAINDIR
|
|
TEXTDOMAIN=sharutils
|
|
export TEXTDOMAIN
|
|
echo="$gettext_dir/gettext -s"
|
|
fi
|
|
if touch -am -t 200112312359.59 $$.touch >/dev/null 2>&1 && test ! -f 200112312359.59 -a -f $$.touch; then
|
|
shar_touch='touch -am -t $1$2$3$4$5$6.$7 "$8"'
|
|
elif touch -am 123123592001.59 $$.touch >/dev/null 2>&1 && test ! -f 123123592001.59 -a ! -f 123123592001.5 -a -f $$.touch; then
|
|
shar_touch='touch -am $3$4$5$6$1$2.$7 "$8"'
|
|
elif touch -am 1231235901 $$.touch >/dev/null 2>&1 && test ! -f 1231235901 -a -f $$.touch; then
|
|
shar_touch='touch -am $3$4$5$6$2 "$8"'
|
|
else
|
|
shar_touch=:
|
|
echo
|
|
$echo 'WARNING: not restoring timestamps. Consider getting and'
|
|
$echo "installing GNU \`touch', distributed in GNU File Utilities..."
|
|
echo
|
|
fi
|
|
rm -f 200112312359.59 123123592001.59 123123592001.5 1231235901 $$.touch
|
|
#
|
|
if mkdir _sh17581; then
|
|
$echo 'x -' 'creating lock directory'
|
|
else
|
|
$echo 'failed to create lock directory'
|
|
exit 1
|
|
fi
|
|
# ============= ip2mkdev ==============
|
|
if test -f 'ip2mkdev' && test "$first_param" != -c; then
|
|
$echo 'x -' SKIPPING 'ip2mkdev' '(file already exists)'
|
|
else
|
|
$echo 'x -' extracting 'ip2mkdev' '(text)'
|
|
sed 's/^X//' << 'SHAR_EOF' > 'ip2mkdev' &&
|
|
#!/bin/sh -
|
|
#
|
|
# ip2mkdev
|
|
#
|
|
# Make or remove devices as needed for Computone Intelliport drivers
|
|
#
|
|
# First rule! If the dev file exists and you need it, don't mess
|
|
# with it. That prevents us from screwing up open ttys, ownership
|
|
# and permissions on a running system!
|
|
#
|
|
# This script will NOT remove devices that no longer exist if their
|
|
# board or interface box has been removed. If you want to get rid
|
|
# of them, you can manually do an "rm -f /dev/ttyF* /dev/cuaf*"
|
|
# before running this script. Running this script will then recreate
|
|
# all the valid devices.
|
|
#
|
|
# Michael H. Warfield
|
|
# /\/\|=mhw=|\/\/
|
|
# mhw@wittsend.com
|
|
#
|
|
# Updated 10/29/2000 for version 1.2.13 naming convention
|
|
# under devfs. /\/\|=mhw=|\/\/
|
|
#
|
|
# Updated 03/09/2000 for devfs support in ip2 drivers. /\/\|=mhw=|\/\/
|
|
#
|
|
X
|
|
if test -d /dev/ip2 ; then
|
|
# This is devfs mode... We don't do anything except create symlinks
|
|
# from the real devices to the old names!
|
|
X cd /dev
|
|
X echo "Creating symbolic links to devfs devices"
|
|
X for i in `ls ip2` ; do
|
|
X if test ! -L ip2$i ; then
|
|
X # Remove it incase it wasn't a symlink (old device)
|
|
X rm -f ip2$i
|
|
X ln -s ip2/$i ip2$i
|
|
X fi
|
|
X done
|
|
X for i in `( cd tts ; ls F* )` ; do
|
|
X if test ! -L tty$i ; then
|
|
X # Remove it incase it wasn't a symlink (old device)
|
|
X rm -f tty$i
|
|
X ln -s tts/$i tty$i
|
|
X fi
|
|
X done
|
|
X for i in `( cd cua ; ls F* )` ; do
|
|
X DEVNUMBER=`expr $i : 'F\(.*\)'`
|
|
X if test ! -L cuf$DEVNUMBER ; then
|
|
X # Remove it incase it wasn't a symlink (old device)
|
|
X rm -f cuf$DEVNUMBER
|
|
X ln -s cua/$i cuf$DEVNUMBER
|
|
X fi
|
|
X done
|
|
X exit 0
|
|
fi
|
|
X
|
|
if test ! -f /proc/tty/drivers
|
|
then
|
|
X echo "\
|
|
Unable to check driver status.
|
|
Make sure proc file system is mounted."
|
|
X
|
|
X exit 255
|
|
fi
|
|
X
|
|
if test ! -f /proc/tty/driver/ip2
|
|
then
|
|
X echo "\
|
|
Unable to locate ip2 proc file.
|
|
Attempting to load driver"
|
|
X
|
|
X if /sbin/insmod ip2
|
|
X then
|
|
X if test ! -f /proc/tty/driver/ip2
|
|
X then
|
|
X echo "\
|
|
Unable to locate ip2 proc file after loading driver.
|
|
Driver initialization failure or driver version error.
|
|
"
|
|
X exit 255
|
|
X fi
|
|
X else
|
|
X echo "Unable to load ip2 driver."
|
|
X exit 255
|
|
X fi
|
|
fi
|
|
X
|
|
# Ok... So we got the driver loaded and we can locate the procfs files.
|
|
# Next we need our major numbers.
|
|
X
|
|
TTYMAJOR=`sed -e '/^ip2/!d' -e '/\/dev\/tt/!d' -e 's/.*tt[^ ]*[ ]*\([0-9]*\)[ ]*.*/\1/' < /proc/tty/drivers`
|
|
CUAMAJOR=`sed -e '/^ip2/!d' -e '/\/dev\/cu/!d' -e 's/.*cu[^ ]*[ ]*\([0-9]*\)[ ]*.*/\1/' < /proc/tty/drivers`
|
|
BRDMAJOR=`sed -e '/^Driver: /!d' -e 's/.*IMajor=\([0-9]*\)[ ]*.*/\1/' < /proc/tty/driver/ip2`
|
|
X
|
|
echo "\
|
|
TTYMAJOR = $TTYMAJOR
|
|
CUAMAJOR = $CUAMAJOR
|
|
BRDMAJOR = $BRDMAJOR
|
|
"
|
|
X
|
|
# Ok... Now we should know our major numbers, if appropriate...
|
|
# Now we need our boards and start the device loops.
|
|
X
|
|
grep '^Board [0-9]:' /proc/tty/driver/ip2 | while read token number type alltherest
|
|
do
|
|
X # The test for blank "type" will catch the stats lead-in lines
|
|
X # if they exist in the file
|
|
X if test "$type" = "vacant" -o "$type" = "Vacant" -o "$type" = ""
|
|
X then
|
|
X continue
|
|
X fi
|
|
X
|
|
X BOARDNO=`expr "$number" : '\([0-9]\):'`
|
|
X PORTS=`expr "$alltherest" : '.*ports=\([0-9]*\)' | tr ',' ' '`
|
|
X MINORS=`expr "$alltherest" : '.*minors=\([0-9,]*\)' | tr ',' ' '`
|
|
X
|
|
X if test "$BOARDNO" = "" -o "$PORTS" = ""
|
|
X then
|
|
# This may be a bug. We should at least get this much information
|
|
X echo "Unable to process board line"
|
|
X continue
|
|
X fi
|
|
X
|
|
X if test "$MINORS" = ""
|
|
X then
|
|
# Silently skip this one. This board seems to have no boxes
|
|
X continue
|
|
X fi
|
|
X
|
|
X echo "board $BOARDNO: $type ports = $PORTS; port numbers = $MINORS"
|
|
X
|
|
X if test "$BRDMAJOR" != ""
|
|
X then
|
|
X BRDMINOR=`expr $BOARDNO \* 4`
|
|
X STSMINOR=`expr $BRDMINOR + 1`
|
|
X if test ! -c /dev/ip2ipl$BOARDNO ; then
|
|
X mknod /dev/ip2ipl$BOARDNO c $BRDMAJOR $BRDMINOR
|
|
X fi
|
|
X if test ! -c /dev/ip2stat$BOARDNO ; then
|
|
X mknod /dev/ip2stat$BOARDNO c $BRDMAJOR $STSMINOR
|
|
X fi
|
|
X fi
|
|
X
|
|
X if test "$TTYMAJOR" != ""
|
|
X then
|
|
X PORTNO=$BOARDBASE
|
|
X
|
|
X for PORTNO in $MINORS
|
|
X do
|
|
X if test ! -c /dev/ttyF$PORTNO ; then
|
|
X # We got the hardware but no device - make it
|
|
X mknod /dev/ttyF$PORTNO c $TTYMAJOR $PORTNO
|
|
X fi
|
|
X done
|
|
X fi
|
|
X
|
|
X if test "$CUAMAJOR" != ""
|
|
X then
|
|
X PORTNO=$BOARDBASE
|
|
X
|
|
X for PORTNO in $MINORS
|
|
X do
|
|
X if test ! -c /dev/cuf$PORTNO ; then
|
|
X # We got the hardware but no device - make it
|
|
X mknod /dev/cuf$PORTNO c $CUAMAJOR $PORTNO
|
|
X fi
|
|
X done
|
|
X fi
|
|
done
|
|
X
|
|
Xexit 0
|
|
SHAR_EOF
|
|
(set 20 01 10 29 10 32 01 'ip2mkdev'; eval "$shar_touch") &&
|
|
chmod 0755 'ip2mkdev' ||
|
|
$echo 'restore of' 'ip2mkdev' 'failed'
|
|
if ( md5sum --help 2>&1 | grep 'sage: md5sum \[' ) >/dev/null 2>&1 \
|
|
&& ( md5sum --version 2>&1 | grep -v 'textutils 1.12' ) >/dev/null; then
|
|
md5sum -c << SHAR_EOF >/dev/null 2>&1 \
|
|
|| $echo 'ip2mkdev:' 'MD5 check failed'
|
|
cb5717134509f38bad9fde6b1f79b4a4 ip2mkdev
|
|
SHAR_EOF
|
|
else
|
|
shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'ip2mkdev'`"
|
|
test 4251 -eq "$shar_count" ||
|
|
$echo 'ip2mkdev:' 'original size' '4251,' 'current size' "$shar_count!"
|
|
fi
|
|
fi
|
|
rm -fr _sh17581
|
|
exit 0
|