[PATCH] drivers/isdn/gigaset: new M101 driver (v2)

     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:

     307x/417x:

        Gigaset SX255isdn

        Gigaset SX353isdn

        Sinus 45 [AB] isdn (Deutsche Telekom)

        Sinus 721X/XA

     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)

     M101:

        Sinus 45 Data 1 (Telekom)

     M105:

        Gigaset USB Adapter DECT

        Sinus 45 Data 2 (Telekom)

        Sinus 721 data

     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.

     For example, Gigaset SX205isdn/Sinus 721 X SE and Gigaset SX303isdn bases

     are just versions without answering machine of models known to work, so

     they should work just as well; but so far we are lacking positive reports

     on these.

     Chances of getting an USB device to work are good if the output of

        lsusb

     To get the device working, you have to load the proper kernel module. You

     can do this using

         modprobe modulename

     where modulename is usb_gigaset (M105) or bas_gigaset (direct USB

     connection to the base).

     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 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

     ---------------

	select CRC_CCITT

	select BITREVERSE

	help

	  Say m here if you have a Gigaset or Sinus isdn device.

	  This driver supports the Siemens Gigaset SX205/255 family of

	  ISDN DECT bases, including the predecessors Gigaset 3070/3075

	  and 4170/4175 and their T-Com versions Sinus 45isdn and Sinus

	  721X.

	  If you have one of these devices, say M here and for at least

	  one of the connection specific parts that follow.

	  This will build a module called "gigaset".

if ISDN_DRV_GIGASET!=n

	tristate "Gigaset base station support"

	depends on ISDN_DRV_GIGASET && USB

	help

	  Say m here if you need to communicate with the base

	  directly via USB.

	  Say M here if you want to use the USB interface of the Gigaset

	  base for connection to your system.

	  This will build a module called "bas_gigaset".

config GIGASET_M105

	tristate "Gigaset M105 support"

	depends on ISDN_DRV_GIGASET && USB

	help

	  Say m here if you need the driver for the Gigaset M105 device.

	  Say M here if you want to connect to the Gigaset base via DECT

	  using a Gigaset M105 (Sinus 45 Data 2) USB DECT device.

	  This will build a module called "usb_gigaset".

config GIGASET_M101

	tristate "Gigaset M101 support"

	depends on ISDN_DRV_GIGASET

	help

	  Say M here if you want to connect to the Gigaset base via DECT

	  using a Gigaset M101 (Sinus 45 Data 1) RS232 DECT device.

	  This will build a module called "ser_gigaset".

config GIGASET_DEBUG

	bool "Gigaset debugging"

gigaset-y := common.o interface.o proc.o ev-layer.o i4l.o

usb_gigaset-y := usb-gigaset.o asyncdata.o

bas_gigaset-y := bas-gigaset.o isocdata.o

ser_gigaset-y := ser-gigaset.o asyncdata.o

obj-$(CONFIG_GIGASET_M105) += usb_gigaset.o gigaset.o

obj-$(CONFIG_GIGASET_BASE) += bas_gigaset.o gigaset.o

obj-$(CONFIG_GIGASET_M105) += ser_gigaset.o gigaset.o

 * =====================================================================

 */

/* not set by Kbuild when building both ser_gigaset and usb_gigaset */

#ifndef KBUILD_MODNAME

#define KBUILD_MODNAME "asy_gigaset"

#endif

#include "gigaset.h"

#include <linux/crc-ccitt.h>

#include <linux/bitrev.h>

	gig_dbg(DEBUG_CMD, "scheduling SHUTDOWN");

	gigaset_schedule_event(cs);

	if (wait_event_interruptible(cs->waitqueue, !cs->waiting)) {

		warn("%s: aborted", __func__);

		//FIXME

	}

	if (atomic_read(&cs->mstate) != MS_LOCKED) {

		//FIXME?

		//gigaset_baud_rate(cs, B115200);

		//gigaset_set_line_ctrl(cs, CS8);

		//gigaset_set_modem_ctrl(cs, TIOCM_DTR|TIOCM_RTS, 0);

		//cs->control_state = 0;

	} else {

		//FIXME use some saved values?

	}

	wait_event(cs->waitqueue, !cs->waiting);

	cleanup_cs(cs);

	gig_dbg(DEBUG_CMD, "scheduling STOP");

	gigaset_schedule_event(cs);

	if (wait_event_interruptible(cs->waitqueue, !cs->waiting)) {

		warn("%s: aborted", __func__);

		//FIXME

	}

	wait_event(cs->waitqueue, !cs->waiting);

	cleanup_cs(cs);