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laforge, 07/02/2020 09:04 AM
add osmo-e1d


libosmo-abis

General description

This is a library containing common/shared code regarding the A-bis interface between BTS and BSC.
It implements drivers for mISDN and DAHDI based E1 cards, as well as some A-bis/IP dialects.
h2. Preconditions

To compile libosmo-abis you will need the following tools:

sudo apt-get install build-essential libtool libortp-dev dahdi-source libsctp-dev shtool autoconf automake git-core pkg-config make gcc

Obtaining it

To obtain libosmo-abis, you can use the following git URL:

git clone git://git.osmocom.org/libosmo-abis.git

Compiling and installing it

To compile and install it as standalone:

cd libosmo-abis/
autoreconf -i
./configure
make
sudo make install
sudo ldconfig -i
cd ..

Licensing

This library is GPL licensed. This means you *cannot use this library from non-GPL licensed code without infringing copyright!

Browsing its source code

You can do that using our cgit installation at http://cgit.osmocom.org/libosmo-abis/

Input Drivers

There are currently the following input drivers available:

misdn

This input driver supports the mISDN code as it is present in mainline linux-2.6 kernels.

It uses the in-kernel LAPD implementation, and is thus bound to some restrictions. Specifically,
you can only have one signalling timeslot (D-channel) in every E1 line, which may cause problems
with multi-BTS or multi-TRX setups (particularly in the case of Nokia A-bis)

You have to configure which E1 timeslot is to be used for signalling by module parameters, e.g.

modprobe hfcmulti dslot=1

will configure TS1 as signalling.

misdn_lapd

This input driver supports the mISDN code as it is present in mainline linux-2.6 kernels.
However, unlike the "misdn" driver, it runs LAPD in userspace, as part of libosmo-abis.

In order to be able to use it, you will need to make sure the mISDN kernel driver does not
configure any timeslot to signalling, e.g.

modprobe hfcmulti dslot=-1

(notice the "-" in front of 1 to indicate "no signalling timeslot").

dahdi

This driver supports the DAHDI (formerly known as zaptel) out-of-tree drivers for e.g.
the various Digium and Digium compatible E1/T1/J1 cards.

ipa

This implements A-bis over IP, as implemented by ip.access nanoBTS as well as all BTSs running OsmoBTS.

hsl

Experimental driver for support of the [HSL_Femto]

e1d

This driver supports osmo-e1d, the software-defined E1 inplementation of Osmocom.

osmo-e1d in turn supports the Osmocom open hardware ICE40 FPGA core, as well as virtual E1 loops for testing (vpair).

Commercial Support

Commercial support as well as development, system integration and training services for this project are available from sysmocom

Files (3)
libosmo-abis-0.0.2.tar.bz2 libosmo-abis-0.0.2.tar.bz2 277 KB version v0.0.2 of libosmo-abis laforge, 08/19/2011 08:51 PM
libosmo-abis-0.0.3.tar.bz2 libosmo-abis-0.0.3.tar.bz2 278 KB laforge, 08/21/2011 11:20 AM
libosmo-abis-0.0.4.tar.bz2 libosmo-abis-0.0.4.tar.bz2 279 KB laforge, 08/24/2011 07:56 AM

Updated by laforge over 3 years ago · 9 revisions

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