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Tilman Schmidt 2869b23e4b [PATCH] drivers/isdn/gigaset: new M101 driver (v2) 
This patch adds the line discipline based driver for the Gigaset M101
wireless RS232 adapter. It also improves the documentation a bit.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: Hansjoerg Lipp <hjlipp@web.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 09:48:30 -08:00

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GigaSet 307x Device Driver
==========================
1. Requirements
------------
1.1. Hardware
--------
This release supports the connection of the Gigaset 307x/417x family of
ISDN DECT bases via Gigaset M101 Data, Gigaset M105 Data or direct USB
connection. The following devices are reported to be compatible:
Bases:
Siemens Gigaset 3070/3075 isdn
Siemens Gigaset 4170/4175 isdn
Siemens Gigaset SX205/255
Siemens Gigaset SX353
T-Com Sinus 45 [AB] isdn
T-Com Sinus 721X[A] [SE]
Vox Chicago 390 ISDN (KPN Telecom)
RS232 data boxes:
Siemens Gigaset M101 Data
T-Com Sinus 45 Data 1
USB data boxes:
Siemens Gigaset M105 Data
Siemens Gigaset USB Adapter DECT
T-Com Sinus 45 Data 2
T-Com Sinus 721 data
Chicago 390 USB (KPN)
See also http://www.erbze.info/sinus_gigaset.htm and
http://gigaset307x.sourceforge.net/
We had also reports from users of Gigaset M105 who could use the drivers
with SX 100 and CX 100 ISDN bases (only in unimodem mode, see section 2.4.)
If you have another device that works with our driver, please let us know.
Chances of getting an USB device to work are good if the output of
lsusb
at the command line contains one of the following:
ID 0681:0001
ID 0681:0002
ID 0681:0009
ID 0681:0021
ID 0681:0022
1.2. Software
--------
The driver works with ISDN4linux and so can be used with any software
which is able to use ISDN4linux for ISDN connections (voice or data).
CAPI4Linux support is planned but not yet available.
There are some user space tools available at
http://sourceforge.net/projects/gigaset307x/
which provide access to additional device specific functions like SMS,
phonebook or call journal.
2. How to use the driver
---------------------
2.1. Modules
-------
To get the device working, you have to load the proper kernel module. You
can do this using
modprobe modulename
where modulename is ser_gigaset (M101), usb_gigaset (M105), or
bas_gigaset (direct USB connection to the base).
The module ser_gigaset provides a serial line discipline N_GIGASET_M101
which drives the device through the regular serial line driver. To use it,
run the Gigaset M101 daemon "gigasetm101d" (also available from
http://sourceforge.net/projects/gigaset307x/) with the device file of the
RS232 port to the M101 as an argument, for example:
gigasetm101d /dev/ttyS1
This will open the device file, set its line discipline to N_GIGASET_M101,
and then sleep in the background, keeping the device open so that the
line discipline remains active. To deactivate it, kill the daemon, for
example with
killall gigasetm101d
before disconnecting the device.
2.2. Device nodes for user space programs
------------------------------------
The device can be accessed from user space (eg. by the user space tools
mentioned in 1.2.) through the device nodes:
- /dev/ttyGS0 for M101 (RS232 data boxes)
- /dev/ttyGU0 for M105 (USB data boxes)
- /dev/ttyGB0 for the base driver (direct USB connection)
You can also select a "default device" which is used by the frontends when
no device node is given as parameter, by creating a symlink /dev/ttyG to
one of them, eg.:
ln -s /dev/ttyGB0 /dev/ttyG
2.3. ISDN4linux
----------
This is the "normal" mode of operation. After loading the module you can
set up the ISDN system just as you'd do with any ISDN card.
Your distribution should provide some configuration utility.
If not, you can use some HOWTOs like
http://www.linuxhaven.de/dlhp/HOWTO/DE-ISDN-HOWTO-5.html
If this doesn't work, because you have some recent device like SX100 where
debug output (see section 3.2.) shows something like this when dialing
CMD Received: ERROR
Available Params: 0
Connection State: 0, Response: -1
gigaset_process_response: resp_code -1 in ConState 0 !
Timeout occurred
you might need to use unimodem mode:
2.4. Unimodem mode
-------------
This is needed for some devices [e.g. SX100] as they have problems with
the "normal" commands.
If you have installed the command line tool gigacontr, you can enter
unimodem mode using
gigacontr --mode unimodem
You can switch back using
gigacontr --mode isdn
You can also load the driver using e.g.
modprobe usb_gigaset startmode=0
to prevent the driver from starting in "isdn4linux mode".
In this mode the device works like a modem connected to a serial port
(the /dev/ttyGU0, ... mentioned above) which understands the commands
ATZ init, reset
=> OK or ERROR
ATD
ATDT dial
=> OK, CONNECT,
BUSY,
NO DIAL TONE,
NO CARRIER,
NO ANSWER
<pause>+++<pause> change to command mode when connected
ATH hangup
You can use some configuration tool of your distribution to configure this
"modem" or configure pppd/wvdial manually. There are some example ppp
configuration files and chat scripts in the gigaset-VERSION/ppp directory
in the driver packages from http://sourceforge.net/projects/gigaset307x/.
Please note that the USB drivers are not able to change the state of the
control lines (the M105 driver can be configured to use some undocumented
control requests, if you really need the control lines, though). This means
you must use "Stupid Mode" if you are using wvdial or you should use the
nocrtscts option of pppd.
You must also assure that the ppp_async module is loaded with the parameter
flag_time=0. You can do this e.g. by adding a line like
options ppp_async flag_time=0
to /etc/modprobe.conf. If your distribution has some local module
configuration file like /etc/modprobe.conf.local,
using that should be preferred.
2.5. Call-ID (CID) mode
------------------
Call-IDs are numbers used to tag commands to, and responses from, the
Gigaset base in order to support the simultaneous handling of multiple
ISDN calls. Their use can be enabled ("CID mode") or disabled ("Unimodem
mode"). Without Call-IDs (in Unimodem mode), only a very limited set of
functions is available. It allows outgoing data connections only, but
does not signal incoming calls or other base events.
DECT cordless data devices (M10x) permanently occupy the cordless
connection to the base while Call-IDs are activated. As the Gigaset
bases only support one DECT data connection at a time, this prevents
other DECT cordless data devices from accessing the base.
During active operation, the driver switches to the necessary mode
automatically. However, for the reasons above, the mode chosen when
the device is not in use (idle) can be selected by the user.
- If you want to receive incoming calls, you can use the default
settings (CID mode).
- If you have several DECT data devices (M10x) which you want to use
in turn, select Unimodem mode by passing the parameter "cidmode=0" to
the driver ("modprobe usb_gigaset cidmode=0" or modprobe.conf).
If you want both of these at once, you are out of luck.
You can also use /sys/class/tty/ttyGxy/cidmode for changing the CID mode
setting (ttyGxy is ttyGU0 or ttyGB0).
2.6. M105 Undocumented USB Requests
------------------------------
The Gigaset M105 USB data box understands a couple of useful, but
undocumented USB commands. These requests are not used in normal
operation (for wireless access to the base), but are needed for access
to the M105's own configuration mode (registration to the base, baudrate
and line format settings, device status queries) via the gigacontr
utility. Their use is disabled in the driver by default for safety
reasons but can be enabled by setting the kernel configuration option
"Support for undocumented USB requests" (GIGASET_UNDOCREQ) to "Y" and
recompiling.
3. Troubleshooting
---------------
3.1. Solutions to frequently reported problems
-----------------------------------------
Problem:
You have a slow provider and isdn4linux gives up dialing too early.
Solution:
Load the isdn module using the dialtimeout option. You can do this e.g.
by adding a line like
options isdn dialtimeout=15
to /etc/modprobe.conf. If your distribution has some local module
configuration file like /etc/modprobe.conf.local,
using that should be preferred.
Problem:
Your isdn script aborts with a message about isdnlog.
Solution:
Try deactivating (or commenting out) isdnlog. This driver does not
support it.
Problem:
You have two or more DECT data adapters (M101/M105) and only the
first one you turn on works.
Solution:
Select Unimodem mode for all DECT data adapters. (see section 2.4.)
3.2. Telling the driver to provide more information
----------------------------------------------
Building the driver with the "Gigaset debugging" kernel configuration
option (CONFIG_GIGASET_DEBUG) gives it the ability to produce additional
information useful for debugging.
You can control the amount of debugging information the driver produces by
writing an appropriate value to /sys/module/gigaset/parameters/debug, e.g.
echo 0 > /sys/module/gigaset/parameters/debug
switches off debugging output completely,
echo 0x10a020 > /sys/module/gigaset/parameters/debug
enables the standard set of debugging output messages. These values are
bit patterns where every bit controls a certain type of debugging output.
See the constants DEBUG_* in the source file gigaset.h for details.
The initial value can be set using the debug parameter when loading the
module "gigaset", e.g. by adding a line
options gigaset debug=0
to /etc/modprobe.conf, ...
Generated debugging information can be found
- as output of the command
dmesg
- in system log files written by your syslog daemon, usually
in /var/log/, e.g. /var/log/messages.
3.3. Reporting problems and bugs
---------------------------
If you can't solve problems with the driver on your own, feel free to
use one of the forums, bug trackers, or mailing lists on
http://sourceforge.net/projects/gigaset307x
or write an electronic mail to the maintainers.
Try to provide as much information as possible, such as
- distribution
- kernel version (uname -r)
- gcc version (gcc --version)
- hardware architecture (uname -m, ...)
- type and firmware version of your device (base and wireless module,
if any)
- output of "lsusb -v" (if using an USB device)
- error messages
- relevant system log messages (it would help if you activate debug
output as described in 3.2.)
For help with general configuration problems not specific to our driver,
such as isdn4linux and network configuration issues, please refer to the
appropriate forums and newsgroups.
3.4. Reporting problem solutions
---------------------------
If you solved a problem with our drivers, wrote startup scripts for your
distribution, ... feel free to contact us (using one of the places
mentioned in 3.3.). We'd like to add scripts, hints, documentation
to the driver and/or the project web page.
4. Links, other software
---------------------
- Sourceforge project developing this driver and associated tools
http://sourceforge.net/projects/gigaset307x
- Yahoo! Group on the Siemens Gigaset family of devices
http://de.groups.yahoo.com/group/Siemens-Gigaset
- Siemens Gigaset/T-Sinus compatibility table
http://www.erbze.info/sinus_gigaset.htm
5. Credits
-------
Thanks to
Karsten Keil
for his help with isdn4linux
Deti Fliegl
for his base driver code
Dennis Dietrich
for his kernel 2.6 patches
Andreas Rummel
for his work and logs to get unimodem mode working
Andreas Degert
for his logs and patches to get cx 100 working
Dietrich Feist
for his generous donation of one M105 and two M101 cordless adapters
Christoph Schweers
for his generous donation of a M34 device
and all the other people who sent logs and other information.
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