The Linux Digiboard Driver
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The Linux Digiboard Driver
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--------------------------
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--------------------------
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The Digiboard Driver for Linux supports the following boards:
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The Digiboard Driver for Linux supports the following boards:
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DigiBoard PC/Xe, PC/Xi, PC/Xeve
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DigiBoard PC/Xe, PC/Xi, PC/Xeve
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Limitations:
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Limitations:
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------------
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------------
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Currently the Driver does not do autoprobing!
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Currently the Driver does not do autoprobing!
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The preconfigured I/O address is 0200h and the default memory address
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The preconfigured I/O address is 0200h and the default memory address
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0D0000h, ALT-PIN feature on and 16 ports available.
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0D0000h, ALT-PIN feature on and 16 ports available.
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Use them and you will not have to worry about configuring anything.
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Use them and you will not have to worry about configuring anything.
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You can configure the driver via lilo. Have a look at the end of this
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You can configure the driver via lilo. Have a look at the end of this
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message. The default settings vanish as soon as you give a digi= commandline.
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message. The default settings vanish as soon as you give a digi= commandline.
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You can give multiple digi= commandline parameters to define multiple
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You can give multiple digi= commandline parameters to define multiple
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boards.
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boards.
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Supporting Tools:
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Supporting Tools:
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-----------------
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-----------------
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Some tools and more detailed information can be found at
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Some tools and more detailed information can be found at
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ftp://ftp.fuller.edu/Linux/digi
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ftp://ftp.fuller.edu/Linux/digi
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WARNING: Most of the stuff available right now uses the WRONG Major Device
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WARNING: Most of the stuff available right now uses the WRONG Major Device
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numbers and the wrong call out devices. Be careful and check them first.
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numbers and the wrong call out devices. Be careful and check them first.
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Better not use any of the software in that directory if you run a recent
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Better not use any of the software in that directory if you run a recent
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1.3.X Kernel or later!
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1.3.X Kernel or later!
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The "ditty" tool described in the Digiboard Manuals for other Unixes
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The "ditty" tool described in the Digiboard Manuals for other Unixes
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is also available.
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is also available.
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Currently the Linux MAKEDEV command does not support generating the Digiboard
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Currently the Linux MAKEDEV command does not support generating the Digiboard
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Devices. Use the following script to generate the devices:
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Devices. Use the following script to generate the devices:
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------------------ mkdigidev begin
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------------------ mkdigidev begin
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#!/bin/sh
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#!/bin/sh
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#
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#
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# Script to create Digiboard Devices
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# Script to create Digiboard Devices
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# Christoph Lameter, April 16, 1996
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# Christoph Lameter, April 16, 1996
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#
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#
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# Usage:
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# Usage:
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# mkdigidev []
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# mkdigidev []
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#
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#
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DIGI_MAJOR=23
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DIGI_MAJOR=23
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DIGICU_MAJOR=22
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DIGICU_MAJOR=22
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BOARDS=$1
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BOARDS=$1
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if [ "$BOARDS" = "" ]; then
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if [ "$BOARDS" = "" ]; then
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BOARDS=1
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BOARDS=1
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fi
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fi
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boardnum=0
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boardnum=0
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while [ $boardnum -lt $BOARDS ];
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while [ $boardnum -lt $BOARDS ];
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do
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do
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for c in 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15;
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for c in 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15;
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do
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do
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name=`expr $boardnum \* 16 + $c`
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name=`expr $boardnum \* 16 + $c`
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mknod /dev/cud$name c $DIGICU_MAJOR $name
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mknod /dev/cud$name c $DIGICU_MAJOR $name
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mknod /dev/ttyD$name c $DIGI_MAJOR $name
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mknod /dev/ttyD$name c $DIGI_MAJOR $name
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done
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done
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boardnum=`expr $boardnum + 1`
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boardnum=`expr $boardnum + 1`
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done
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done
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------------------ mkdigidev end
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------------------ mkdigidev end
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or apply the following patch to /dev/MAKEDEV and do a
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or apply the following patch to /dev/MAKEDEV and do a
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make digi
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make digi
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----- MAKEDEV Patch
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----- MAKEDEV Patch
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--- /dev/MAKEDEV Sun Aug 13 15:48:23 1995
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--- /dev/MAKEDEV Sun Aug 13 15:48:23 1995
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+++ MAKEDEV Tue Apr 16 17:53:27 1996
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+++ MAKEDEV Tue Apr 16 17:53:27 1996
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@@ -120,7 +120,7 @@
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@@ -120,7 +120,7 @@
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while [ $# -ne 0 ]
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while [ $# -ne 0 ]
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do
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do
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case "$1" in
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case "$1" in
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- mem|tty|ttyp|cua|cub) ;;
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- mem|tty|ttyp|cua|cub) ;;
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+ mem|tty|ttyp|cua|cub|cud) ;;
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+ mem|tty|ttyp|cua|cub|cud) ;;
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hd) echo hda hdb hdc hdd ;;
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hd) echo hda hdb hdc hdd ;;
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xd) echo xda xdb ;;
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xd) echo xda xdb ;;
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fd) echo fd0 fd1 ;;
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fd) echo fd0 fd1 ;;
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@@ -140,6 +140,7 @@
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@@ -140,6 +140,7 @@
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dcf) echo dcf ;;
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dcf) echo dcf ;;
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pcmcia) ;; # taken care of by its own driver
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pcmcia) ;; # taken care of by its own driver
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ttyC) echo cyclades ;;
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ttyC) echo cyclades ;;
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+ ttyD) echo digi ;;
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+ ttyD) echo digi ;;
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*) echo "$0: don't know what \"$1\" is" >&2 ;;
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*) echo "$0: don't know what \"$1\" is" >&2 ;;
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esac
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esac
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shift
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shift
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@@ -208,6 +209,15 @@
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@@ -208,6 +209,15 @@
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do
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do
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makedev ttyC$i c $major1 `expr 32 + $i` $tty
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makedev ttyC$i c $major1 `expr 32 + $i` $tty
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makedev cub$i c $major2 `expr 32 + $i` $dialout
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makedev cub$i c $major2 `expr 32 + $i` $dialout
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+ done
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+ done
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+ ;;
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+ ;;
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+ digi)
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+ digi)
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+ major1=`Major ttyD` || continue
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+ major1=`Major ttyD` || continue
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+ major2=`Major cud` || continue
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+ major2=`Major cud` || continue
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+ for i in 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
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+ for i in 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
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+ do
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+ do
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+ makedev ttyD$i c $major1 `expr 32 + $i` $tty
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+ makedev ttyD$i c $major1 `expr 32 + $i` $tty
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+ makedev cud$i c $major2 `expr 32 + $i` $dialout
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+ makedev cud$i c $major2 `expr 32 + $i` $dialout
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done
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done
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;;
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;;
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par[0-2])
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par[0-2])
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----- End Makedev patch
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----- End Makedev patch
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The /dev/cud?? devices behave like the /dev/cua?? devices
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The /dev/cud?? devices behave like the /dev/cua?? devices
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and the ttyD devices are like the /dev/ttyS?? devices.
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and the ttyD devices are like the /dev/ttyS?? devices.
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Sources of Information
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Sources of Information
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----------------------
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----------------------
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Webpage: http://private.fuller.edu/clameter/digi.html
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Webpage: http://private.fuller.edu/clameter/digi.html
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Mailing List: digiboard@list.fuller.edu
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Mailing List: digiboard@list.fuller.edu
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(Write e-mail to that address to subscribe. Common ListServ commands work.
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(Write e-mail to that address to subscribe. Common ListServ commands work.
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Archive of messages available)
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Archive of messages available)
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Christoph Lameter (clameter@fuller.edu) 16. April 1996.
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Christoph Lameter (clameter@fuller.edu) 16. April 1996.
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-----------------------------------------------------------------------------
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-----------------------------------------------------------------------------
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Changes v1.5.5:
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Changes v1.5.5:
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The ability to use the kernel's command line to pass in the configuration for
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The ability to use the kernel's command line to pass in the configuration for
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boards. Using LILO's APPEND command, a string of comma separated identifiers
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boards. Using LILO's APPEND command, a string of comma separated identifiers
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or integers can be used. The 6 values in order are:
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or integers can be used. The 6 values in order are:
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Enable/Disable this card,
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Enable/Disable this card,
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Type of card: PC/Xi(0), PC/Xe(1), PC/Xeve(2), PC/Xem(3)
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Type of card: PC/Xi(0), PC/Xe(1), PC/Xeve(2), PC/Xem(3)
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Enable/Disable alternate pin arrangement,
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Enable/Disable alternate pin arrangement,
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Number of ports on this card,
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Number of ports on this card,
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I/O Port where card is configured (in HEX if using string identifiers),
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I/O Port where card is configured (in HEX if using string identifiers),
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Base of memory window (in HEX if using string identifiers),
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Base of memory window (in HEX if using string identifiers),
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Samples:
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Samples:
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append="digi=E,PC/Xi,D,16,200,D0000"
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append="digi=E,PC/Xi,D,16,200,D0000"
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append="digi=1,0,0,16,512,(whatever D0000 is in base 10 :)
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append="digi=1,0,0,16,512,(whatever D0000 is in base 10 :)
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Driver's minor device numbers are conserved. This means that instead of
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Driver's minor device numbers are conserved. This means that instead of
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each board getting a block of 16 minors pre-assigned, it gets however
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each board getting a block of 16 minors pre-assigned, it gets however
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many it should, with the next card following directly behind it. A
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many it should, with the next card following directly behind it. A
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system with 4 2-port PC/Xi boards will use minor numbers 0-7.
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system with 4 2-port PC/Xi boards will use minor numbers 0-7.
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This conserves some memory, and removes a few hard coded constants.
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This conserves some memory, and removes a few hard coded constants.
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NOTE!! NOTE!! NOTE!!
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NOTE!! NOTE!! NOTE!!
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The definition of PC/Xem as a valid board type is the BEGINNING of support
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The definition of PC/Xem as a valid board type is the BEGINNING of support
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for this device. The driver does not currently recognise the board, nor
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for this device. The driver does not currently recognise the board, nor
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does it want to initialize it. At least not the EISA version.
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does it want to initialize it. At least not the EISA version.
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Mike McLagan 5, April 1996.
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Mike McLagan 5, April 1996.
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