L: gigaset307x-common@lists.sourceforge.net
W: http://gigaset307x.sourceforge.net/
S: Odd Fixes
-F: Documentation/isdn/README.gigaset
-F: drivers/isdn/gigaset/
-F: include/uapi/linux/gigaset_dev.h
+F: drivers/staging/isdn/gigaset/
GNSS SUBSYSTEM
M: Johan Hovold <johan@kernel.org>
W: http://www.linux-iscsi.org
F: drivers/infiniband/ulp/isert
-ISDN SUBSYSTEM
+ISDN/mISDN SUBSYSTEM
M: Karsten Keil <isdn@linux-pingi.de>
L: isdn4linux@listserv.isdn4linux.de (subscribers-only)
L: netdev@vger.kernel.org
W: http://www.isdn4linux.de
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/kkeil/isdn-2.6.git
S: Maintained
+F: drivers/isdn/mISDN
+F: drivers/isdn/hardware
+
+ISDN/CAPI SUBSYSTEM
+M: Karsten Keil <isdn@linux-pingi.de>
+L: isdn4linux@listserv.isdn4linux.de (subscribers-only)
+L: netdev@vger.kernel.org
+W: http://www.isdn4linux.de
+S: Odd Fixes
F: Documentation/isdn/
-F: drivers/isdn/
+F: drivers/isdn/capi/
+F: drivers/staging/isdn/
+F: net/bluetooth/cmtp/
F: include/linux/isdn/
F: include/uapi/linux/isdn/
if ISDN
-menuconfig ISDN_CAPI
- tristate "CAPI 2.0 subsystem"
- help
- This provides CAPI (the Common ISDN Application Programming
- Interface) Version 2.0, a standard making it easy for programs to
- access ISDN hardware in a device independent way. (For details see
- <http://www.capi.org/>.) CAPI supports making and accepting voice
- and data connections, controlling call options and protocols,
- as well as ISDN supplementary services like call forwarding or
- three-party conferences (if supported by the specific hardware
- driver).
-
- Select this option and the appropriate hardware driver below if
- you have an ISDN adapter supported by the CAPI subsystem.
-
-if ISDN_CAPI
-
source "drivers/isdn/capi/Kconfig"
-source "drivers/isdn/hardware/Kconfig"
-
-endif # ISDN_CAPI
-
-source "drivers/isdn/gigaset/Kconfig"
-
-source "drivers/isdn/hysdn/Kconfig"
-
source "drivers/isdn/mISDN/Kconfig"
endif # ISDN
obj-$(CONFIG_ISDN_CAPI) += capi/
obj-$(CONFIG_MISDN) += mISDN/
obj-$(CONFIG_ISDN) += hardware/
-obj-$(CONFIG_HYSDN) += hysdn/
-obj-$(CONFIG_ISDN_DRV_GIGASET) += gigaset/
# SPDX-License-Identifier: GPL-2.0-only
+menuconfig ISDN_CAPI
+ tristate "CAPI 2.0 subsystem"
+ help
+ This provides CAPI (the Common ISDN Application Programming
+ Interface) Version 2.0, a standard making it easy for programs to
+ access ISDN hardware in a device independent way. (For details see
+ <http://www.capi.org/>.) CAPI supports making and accepting voice
+ and data connections, controlling call options and protocols,
+ as well as ISDN supplementary services like call forwarding or
+ three-party conferences (if supported by the specific hardware
+ driver).
+
+ This subsystem requires a hardware specific driver.
+ See CONFIG_BT_CMTP for the last remaining regular driver
+ in the kernel that uses the CAPI subsystem.
+
+if ISDN_CAPI
+
config CAPI_TRACE
bool "CAPI trace support"
default y
If you say Y here, the capidrv interface will give verbose reasons
for disconnecting. This will increase the size of the kernel by 7 KB.
If unsure, say N.
+
+endif
kernelcapi-y := kcapi.o capiutil.o capilib.o
kernelcapi-$(CONFIG_PROC_FS) += kcapi_proc.o
+
+ccflags-y += -I$(srctree)/$(src)/../include -I$(srctree)/$(src)/../include/uapi
+++ /dev/null
-# SPDX-License-Identifier: GPL-2.0-only
-#
-# ISDN hardware drivers
-#
-comment "CAPI hardware drivers"
-
-source "drivers/isdn/hardware/avm/Kconfig"
-
# Object files in subdirectories
-obj-$(CONFIG_CAPI_AVM) += avm/
obj-$(CONFIG_MISDN) += mISDN/
source "drivers/staging/kpc2000/Kconfig"
+source "drivers/staging/isdn/Kconfig"
+
endif # STAGING
obj-$(CONFIG_EROFS_FS) += erofs/
obj-$(CONFIG_FIELDBUS_DEV) += fieldbus/
obj-$(CONFIG_KPC2000) += kpc2000/
+obj-$(CONFIG_ISDN_CAPI) += isdn/
--- /dev/null
+# SPDX-License-Identifier: GPL-2.0-only
+menu "ISDN CAPI drivers"
+ depends on ISDN_CAPI
+
+source "drivers/staging/isdn/avm/Kconfig"
+
+source "drivers/staging/isdn/gigaset/Kconfig"
+
+source "drivers/staging/isdn/hysdn/Kconfig"
+
+endmenu
+
--- /dev/null
+# SPDX-License-Identifier: GPL-2.0
+# Makefile for the kernel ISDN subsystem and device drivers.
+
+# Object files in subdirectories
+
+obj-$(CONFIG_CAPI_AVM) += avm/
+obj-$(CONFIG_HYSDN) += hysdn/
+obj-$(CONFIG_ISDN_DRV_GIGASET) += gigaset/
--- /dev/null
+TODO: Remove in late 2019 unless there are users
+
+
+I tried to find any indication of whether the capi drivers are
+still in use, and have not found anything from a long time ago.
+
+With public ISDN networks almost completely shut down over the past 12
+months, there is very little you can actually do with this hardware. The
+main remaining use case would be to connect ISDN voice phones to an
+in-house installation with Asterisk or LCR, but anyone trying this in
+turn seems to be using either the mISDN driver stack, or out-of-tree
+drivers from the hardware vendors.
+
+I may of course have missed something, so I would suggest moving
+these into drivers/staging/ just in case someone still uses one
+of the three remaining in-kernel drivers (avm, hysdn, gigaset).
+
+If nobody complains, we can remove them entirely in six months,
+or otherwise move the core code and any drivers that are still
+needed back into drivers/isdn.
+
+ Arnd Bergmann <arnd@arndb.de>
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