1 NOTE: This is an unmaintained driver. It is not guaranteed to work due to
2 changes made in the tty layer in 2.6. If you wish to take over maintenance of
3 this driver, contact Michael Warfield <mhw@wittsend.com>.
7 11-01-2001: Original Document
9 10-29-2004: Minor misspelling & format fix, update status of driver.
10 James Nelson <james4765@gmail.com>
12 Computone Intelliport II/Plus Multiport Serial Driver
13 -----------------------------------------------------
15 Release Notes For Linux Kernel 2.2 and higher.
16 These notes are for the drivers which have already been integrated into the
17 kernel and have been tested on Linux kernels 2.0, 2.2, 2.3, and 2.4.
21 Historical Author: Andrew Manison <amanison@america.net>
22 Primary Author: Doug McNash
23 Support: support@computone.com
24 Fixes and Updates: Mike Warfield <mhw@wittsend.com>
26 This file assumes that you are using the Computone drivers which are
27 integrated into the kernel sources. For updating the drivers or installing
28 drivers into kernels which do not already have Computone drivers, please
29 refer to the instructions in the README.computone file in the driver patch.
34 This driver supports the entire family of Intelliport II/Plus controllers
35 with the exception of the MicroChannel controllers. It does not support
36 products previous to the Intelliport II.
38 This driver was developed on the v2.0.x Linux tree and has been tested up
39 to v2.4.14; it will probably not work with earlier v1.X kernels,.
44 Hardware - If you have an ISA card, find a free interrupt and io port.
45 List those in use with `cat /proc/interrupts` and
46 `cat /proc/ioports`. Set the card dip switches to a free
47 address. You may need to configure your BIOS to reserve an
48 irq for an ISA card. PCI and EISA parameters are set
49 automagically. Insert card into computer with the power off
50 before or after drivers installation.
52 Note the hardware address from the Computone ISA cards installed into
53 the system. These are required for editing ip2.c or editing
54 /etc/modprobe.conf, or for specification on the modprobe
57 Note that the /etc/modules.conf should be used for older (pre-2.6)
64 a) Determine free irq/address to use if any (configure BIOS if need be)
65 b) Run "make config" or "make menuconfig" or "make xconfig"
66 Select (m) module for CONFIG_COMPUTONE under character
67 devices. CONFIG_PCI and CONFIG_MODULES also may need to be set.
68 c) Set address on ISA cards then:
69 edit /usr/src/linux/drivers/char/ip2.c if needed
71 edit /etc/modprobe.conf if needed (module).
72 or both to match this setting.
74 e) Run "make modules_install"
75 f) Run "/sbin/depmod -a"
76 g) install driver using `modprobe ip2 <options>` (options listed below)
77 h) run ip2mkdev (either the script below or the binary version)
82 a) Determine free irq/address to use if any (configure BIOS if need be)
83 b) Run "make config" or "make menuconfig" or "make xconfig"
84 Select (y) kernel for CONFIG_COMPUTONE under character
85 devices. CONFIG_PCI may need to be set if you have PCI bus.
86 c) Set address on ISA cards then:
87 edit /usr/src/linux/drivers/char/ip2.c
88 (Optional - may be specified on kernel command line now)
89 d) Run "make zImage" or whatever target you prefer.
90 e) mv /usr/src/linux/arch/i386/boot/zImage to /boot.
91 f) Add new config for this kernel into /etc/lilo.conf, run "lilo"
92 or copy to a floppy disk and boot from that floppy disk.
93 g) Reboot using this kernel
94 h) run ip2mkdev (either the script below or the binary version)
96 Kernel command line options:
98 When compiling the driver into the kernel, io and irq may be
99 compiled into the driver by editing ip2.c and setting the values for
100 io and irq in the appropriate array. An alternative is to specify
101 a command line parameter to the kernel at boot up.
103 ip2=io0,irq0,io1,irq1,io2,irq2,io3,irq3
105 Note that this order is very different from the specifications for the
106 modload parameters which have separate IRQ and IO specifiers.
108 The io port also selects PCI (1) and EISA (2) boards.
113 else ISA board io address
115 You only need to specify the boards which are present.
123 1 ISA board at 0x310 irq 5:
127 This can be added to and "append" option in lilo.conf similar to this:
134 Previously, the driver sources were packaged with a set of patch files
135 to update the character drivers' makefile and configuration file, and other
136 kernel source files. A build script (ip2build) was included which applies
137 the patches if needed, and build any utilities needed.
138 What you receive may be a single patch file in conventional kernel
139 patch format build script. That form can also be applied by
140 running patch -p1 < ThePatchFile. Otherwise run ip2build.
142 The driver can be installed as a module (recommended) or built into the
143 kernel. This is selected as for other drivers through the `make config`
144 command from the root of the Linux source tree. If the driver is built
145 into the kernel you will need to edit the file ip2.c to match the boards
146 you are installing. See that file for instructions. If the driver is
147 installed as a module the configuration can also be specified on the
148 modprobe command line as follows:
150 modprobe ip2 irq=irq1,irq2,irq3,irq4 io=addr1,addr2,addr3,addr4
152 where irqnum is one of the valid Intelliport II interrupts (3,4,5,7,10,11,
153 12,15) and addr1-4 are the base addresses for up to four controllers. If
154 the irqs are not specified the driver uses the default in ip2.c (which
155 selects polled mode). If no base addresses are specified the defaults in
156 ip2.c are used. If you are autoloading the driver module with kerneld or
157 kmod the base addresses and interrupt number must also be set in ip2.c
158 and recompile or just insert and options line in /etc/modprobe.conf or both.
159 The options line is equivalent to the command line and takes precedence over
162 /etc/modprobe.conf sample:
163 options ip2 io=1,0x328 irq=1,10
164 alias char-major-71 ip2
165 alias char-major-72 ip2
166 alias char-major-73 ip2
168 The equivalent in ip2.c:
170 static int io[IP2_MAX_BOARDS]= { 1, 0x328, 0, 0 };
171 static int irq[IP2_MAX_BOARDS] = { 1, 10, -1, -1 };
173 The equivalent for the kernel command line (in lilo.conf):
175 append="ip2=1,1,0x328,10"
178 Note: Both io and irq should be updated to reflect YOUR system. An "io"
179 address of 1 or 2 indicates a PCI or EISA card in the board table.
180 The PCI or EISA irq will be assigned automatically.
182 Specifying an invalid or in-use irq will default the driver into
183 running in polled mode for that card. If all irq entries are 0 then
184 all cards will operate in polled mode.
186 If you select the driver as part of the kernel run :
188 make zlilo (or whatever you do to create a bootable kernel)
190 If you selected a module run :
192 make modules && make modules_install
194 The utility ip2mkdev (see 5 and 7 below) creates all the device nodes
195 required by the driver. For a device to be created it must be configured
196 in the driver and the board must be installed. Only devices corresponding
197 to real IntelliPort II ports are created. With multiple boards and expansion
198 boxes this will leave gaps in the sequence of device names. ip2mkdev uses
199 Linux tty naming conventions: ttyF0 - ttyF255 for normal devices, and
200 cuf0 - cuf255 for callout devices.
202 If you are using devfs, existing devices are automatically created within
203 the devfs name space. Normal devices will be tts/F0 - tts/F255 and callout
204 devices will be cua/F0 - cua/F255. With devfs installed, ip2mkdev will
205 create symbolic links in /dev from the old conventional names to the newer
206 devfs names as follows:
208 /dev/ip2ipl[n] -> /dev/ip2/ipl[n] n = 0 - 3
209 /dev/ip2stat[n] -> /dev/ip2/stat[n] n = 0 - 3
210 /dev/ttyF[n] -> /dev/tts/F[n] n = 0 - 255
211 /dev/cuf[n] -> /dev/cua/F[n] n = 0 - 255
213 Only devices for existing ports and boards will be created.
215 IMPORTANT NOTE: The naming convention used for devfs by this driver
216 was changed from 1.2.12 to 1.2.13. The old naming convention was to
217 use ttf/%d for the tty device and cuf/%d for the cua device. That
218 has been changed to conform to an agreed-upon standard of placing
219 all the tty devices under tts. The device names are now tts/F%d for
220 the tty device and cua/F%d for the cua devices. If you were using
221 the older devfs names, you must update for the newer convention.
223 You do not need to run ip2mkdev if you are using devfs and only want to
224 use the devfs native device names.
229 As noted above, the driver implements the ports in accordance with Linux
230 conventions, and the devices should be interchangeable with the standard
231 serial devices. (This is a key point for problem reporting: please make
232 sure that what you are trying do works on the ttySx/cuax ports first; then
233 tell us what went wrong with the ip2 ports!)
235 Higher speeds can be obtained using the setserial utility which remaps
236 38,400 bps (extb) to 57,600 bps, 115,200 bps, or a custom speed.
237 Intelliport II installations using the PowerPort expansion module can
238 use the custom speed setting to select the highest speeds: 153,600 bps,
239 230,400 bps, 307,200 bps, 460,800bps and 921,600 bps. The base for
240 custom baud rate configuration is fixed at 921,600 for cards/expansion
241 modules with ST654's and 115200 for those with Cirrus CD1400's. This
242 corresponds to the maximum bit rates those chips are capable.
243 For example if the baud base is 921600 and the baud divisor is 18 then
244 the custom rate is 921600/18 = 51200 bps. See the setserial man page for
245 complete details. Of course if stty accepts the higher rates now you can
246 use that as well as the standard ioctls().
249 5. ip2mkdev and assorted utilities...
251 Several utilities, including the source for a binary ip2mkdev utility are
252 available under .../drivers/char/ip2. These can be build by changing to
253 that directory and typing "make" after the kernel has be built. If you do
254 not wish to compile the binary utilities, the shell script below can be
255 cut out and run as "ip2mkdev" to create the necessary device files. To
256 use the ip2mkdev script, you must have procfs enabled and the proc file
257 system mounted on /proc.
259 You do not need to run ip2mkdev if you are using devfs and only want to
260 use the devfs native device names.
265 DEVFS is the DEVice File System available as an add on package for the
266 2.2.x kernels and available as a configuration option in 2.3.46 and higher.
267 Devfs allows for the automatic creation and management of device names
268 under control of the device drivers themselves. The Devfs namespace is
269 hierarchical and reduces the clutter present in the normal flat /dev
270 namespace. Devfs names and conventional device names may be intermixed.
271 A userspace daemon, devfsd, exists to allow for automatic creation and
272 management of symbolic links from the devfs name space to the conventional
273 names. More details on devfs can be found on the DEVFS home site at
274 <http://www.atnf.csiro.au/~rgooch/linux/> or in the file kernel
275 documentation files, .../linux/Documentation/filesystems/devfs/README.
277 If you are using devfs, existing devices are automatically created within
278 the devfs name space. Normal devices will be tts/F0 - tts/F255 and callout
279 devices will be cua/F0 - cua/F255. With devfs installed, ip2mkdev will
280 create symbolic links in /dev from the old conventional names to the newer
281 devfs names as follows:
283 /dev/ip2ipl[n] -> /dev/ip2/ipl[n] n = 0 - 3
284 /dev/ip2stat[n] -> /dev/ip2/stat[n] n = 0 - 3
285 /dev/ttyF[n] -> /dev/tts/F[n] n = 0 - 255
286 /dev/cuf[n] -> /dev/cua/F[n] n = 0 - 255
288 Only devices for existing ports and boards will be created.
290 IMPORTANT NOTE: The naming convention used for devfs by this driver
291 was changed from 1.2.12 to 1.2.13. The old naming convention was to
292 use ttf/%d for the tty device and cuf/%d for the cua device. That
293 has been changed to conform to an agreed-upon standard of placing
294 all the tty devices under tts. The device names are now tts/F%d for
295 the tty device and cua/F%d for the cua devices. If you were using
296 the older devfs names, you must update for the newer convention.
298 You do not need to run ip2mkdev if you are using devfs and only want to
299 use the devfs native device names.
304 This is a release version of the driver, but it is impossible to test it
305 in all configurations of Linux. If there is any anomalous behaviour that
306 does not match the standard serial port's behaviour please let us know.
309 8. ip2mkdev shell script
311 Previously, this script was simply attached here. It is now attached as a
312 shar archive to make it easier to extract the script from the documentation.
313 To create the ip2mkdev shell script change to a convenient directory (/tmp
314 works just fine) and run the following command:
316 unshar Documentation/computone.txt
319 You should now have a file ip2mkdev in your current working directory with
320 permissions set to execute. Running that script with then create the
321 necessary devices for the Computone boards, interfaces, and ports which
322 are present on you system at the time it is run.
326 # This is a shell archive (produced by GNU sharutils 4.2.1).
327 # To extract the files from this archive, save it to some FILE, remove
328 # everything before the `!/bin/sh' line above, then type `sh FILE'.
330 # Made on 2001-10-29 10:32 EST by <mhw@alcove.wittsend.com>.
331 # Source directory was `/home2/src/tmp'.
333 # Existing files will *not* be overwritten unless `-c' is specified.
335 # This shar contains:
337 # ------ ---------- ------------------------------------------
338 # 4251 -rwxr-xr-x ip2mkdev
347 if test "$gettext_dir" = FAILED && test -f $dir/gettext \
348 && ($dir/gettext --version >/dev/null 2>&1)
350 set `$dir/gettext --version 2>&1`
356 if test "$locale_dir" = FAILED && test -f $dir/shar \
357 && ($dir/shar --print-text-domain-dir >/dev/null 2>&1)
359 locale_dir=`$dir/shar --print-text-domain-dir`
363 if test "$locale_dir" = FAILED || test "$gettext_dir" = FAILED
367 TEXTDOMAINDIR=$locale_dir
371 echo="$gettext_dir/gettext -s"
373 if touch -am -t 200112312359.59 $$.touch >/dev/null 2>&1 && test ! -f 200112312359.59 -a -f $$.touch; then
374 shar_touch='touch -am -t $1$2$3$4$5$6.$7 "$8"'
375 elif touch -am 123123592001.59 $$.touch >/dev/null 2>&1 && test ! -f 123123592001.59 -a ! -f 123123592001.5 -a -f $$.touch; then
376 shar_touch='touch -am $3$4$5$6$1$2.$7 "$8"'
377 elif touch -am 1231235901 $$.touch >/dev/null 2>&1 && test ! -f 1231235901 -a -f $$.touch; then
378 shar_touch='touch -am $3$4$5$6$2 "$8"'
382 $echo 'WARNING: not restoring timestamps. Consider getting and'
383 $echo "installing GNU \`touch', distributed in GNU File Utilities..."
386 rm -f 200112312359.59 123123592001.59 123123592001.5 1231235901 $$.touch
388 if mkdir _sh17581; then
389 $echo 'x -' 'creating lock directory'
391 $echo 'failed to create lock directory'
394 # ============= ip2mkdev ==============
395 if test -f 'ip2mkdev' && test "$first_param" != -c; then
396 $echo 'x -' SKIPPING 'ip2mkdev' '(file already exists)'
398 $echo 'x -' extracting 'ip2mkdev' '(text)'
399 sed 's/^X//' << 'SHAR_EOF' > 'ip2mkdev' &&
404 # Make or remove devices as needed for Computone Intelliport drivers
406 # First rule! If the dev file exists and you need it, don't mess
407 # with it. That prevents us from screwing up open ttys, ownership
408 # and permissions on a running system!
410 # This script will NOT remove devices that no longer exist if their
411 # board or interface box has been removed. If you want to get rid
412 # of them, you can manually do an "rm -f /dev/ttyF* /dev/cuaf*"
413 # before running this script. Running this script will then recreate
414 # all the valid devices.
416 # Michael H. Warfield
420 # Updated 10/29/2000 for version 1.2.13 naming convention
421 # under devfs. /\/\|=mhw=|\/\/
423 # Updated 03/09/2000 for devfs support in ip2 drivers. /\/\|=mhw=|\/\/
426 if test -d /dev/ip2 ; then
427 # This is devfs mode... We don't do anything except create symlinks
428 # from the real devices to the old names!
430 X echo "Creating symbolic links to devfs devices"
431 X for i in `ls ip2` ; do
432 X if test ! -L ip2$i ; then
433 X # Remove it incase it wasn't a symlink (old device)
438 X for i in `( cd tts ; ls F* )` ; do
439 X if test ! -L tty$i ; then
440 X # Remove it incase it wasn't a symlink (old device)
445 X for i in `( cd cua ; ls F* )` ; do
446 X DEVNUMBER=`expr $i : 'F\(.*\)'`
447 X if test ! -L cuf$DEVNUMBER ; then
448 X # Remove it incase it wasn't a symlink (old device)
449 X rm -f cuf$DEVNUMBER
450 X ln -s cua/$i cuf$DEVNUMBER
456 if test ! -f /proc/tty/drivers
459 Unable to check driver status.
460 Make sure proc file system is mounted."
465 if test ! -f /proc/tty/driver/ip2
468 Unable to locate ip2 proc file.
469 Attempting to load driver"
471 X if /sbin/insmod ip2
473 X if test ! -f /proc/tty/driver/ip2
476 Unable to locate ip2 proc file after loading driver.
477 Driver initialization failure or driver version error.
482 X echo "Unable to load ip2 driver."
487 # Ok... So we got the driver loaded and we can locate the procfs files.
488 # Next we need our major numbers.
490 TTYMAJOR=`sed -e '/^ip2/!d' -e '/\/dev\/tt/!d' -e 's/.*tt[^ ]*[ ]*\([0-9]*\)[ ]*.*/\1/' < /proc/tty/drivers`
491 CUAMAJOR=`sed -e '/^ip2/!d' -e '/\/dev\/cu/!d' -e 's/.*cu[^ ]*[ ]*\([0-9]*\)[ ]*.*/\1/' < /proc/tty/drivers`
492 BRDMAJOR=`sed -e '/^Driver: /!d' -e 's/.*IMajor=\([0-9]*\)[ ]*.*/\1/' < /proc/tty/driver/ip2`
500 # Ok... Now we should know our major numbers, if appropriate...
501 # Now we need our boards and start the device loops.
503 grep '^Board [0-9]:' /proc/tty/driver/ip2 | while read token number type alltherest
505 X # The test for blank "type" will catch the stats lead-in lines
506 X # if they exist in the file
507 X if test "$type" = "vacant" -o "$type" = "Vacant" -o "$type" = ""
512 X BOARDNO=`expr "$number" : '\([0-9]\):'`
513 X PORTS=`expr "$alltherest" : '.*ports=\([0-9]*\)' | tr ',' ' '`
514 X MINORS=`expr "$alltherest" : '.*minors=\([0-9,]*\)' | tr ',' ' '`
516 X if test "$BOARDNO" = "" -o "$PORTS" = ""
518 # This may be a bug. We should at least get this much information
519 X echo "Unable to process board line"
523 X if test "$MINORS" = ""
525 # Silently skip this one. This board seems to have no boxes
529 X echo "board $BOARDNO: $type ports = $PORTS; port numbers = $MINORS"
531 X if test "$BRDMAJOR" != ""
533 X BRDMINOR=`expr $BOARDNO \* 4`
534 X STSMINOR=`expr $BRDMINOR + 1`
535 X if test ! -c /dev/ip2ipl$BOARDNO ; then
536 X mknod /dev/ip2ipl$BOARDNO c $BRDMAJOR $BRDMINOR
538 X if test ! -c /dev/ip2stat$BOARDNO ; then
539 X mknod /dev/ip2stat$BOARDNO c $BRDMAJOR $STSMINOR
543 X if test "$TTYMAJOR" != ""
547 X for PORTNO in $MINORS
549 X if test ! -c /dev/ttyF$PORTNO ; then
550 X # We got the hardware but no device - make it
551 X mknod /dev/ttyF$PORTNO c $TTYMAJOR $PORTNO
556 X if test "$CUAMAJOR" != ""
560 X for PORTNO in $MINORS
562 X if test ! -c /dev/cuf$PORTNO ; then
563 X # We got the hardware but no device - make it
564 X mknod /dev/cuf$PORTNO c $CUAMAJOR $PORTNO
572 (set 20 01 10 29 10 32 01 'ip2mkdev'; eval "$shar_touch") &&
573 chmod 0755 'ip2mkdev' ||
574 $echo 'restore of' 'ip2mkdev' 'failed'
575 if ( md5sum --help 2>&1 | grep 'sage: md5sum \[' ) >/dev/null 2>&1 \
576 && ( md5sum --version 2>&1 | grep -v 'textutils 1.12' ) >/dev/null; then
577 md5sum -c << SHAR_EOF >/dev/null 2>&1 \
578 || $echo 'ip2mkdev:' 'MD5 check failed'
579 cb5717134509f38bad9fde6b1f79b4a4 ip2mkdev
582 shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'ip2mkdev'`"
583 test 4251 -eq "$shar_count" ||
584 $echo 'ip2mkdev:' 'original size' '4251,' 'current size' "$shar_count!"